Problem with comparison.
| /Designs/GPSRL03A/Makefile |
|---|
| 0,0 → 1,52 |
| PRG = glg |
| OBJ = main.o tff.o mmc.o |
| MCU_TARGET = atmega168 |
| OPTIMIZE = -Os -mcall-prologues |
| DEFS = |
| LIBS = |
| DEBUG = dwarf-2 |
| CC = avr-gcc |
| ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs |
| ALL_ASFLAGS = -mmcu=$(MCU_TARGET) -I. -x assembler-with-cpp $(ASFLAGS) |
| CFLAGS = -g$(DEBUG) -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS) |
| LDFLAGS = -Wl,-Map,$(PRG).map |
| OBJCOPY = avr-objcopy |
| OBJDUMP = avr-objdump |
| SIZE = avr-size |
| all: $(PRG).elf lst text size |
| $(PRG).elf: $(OBJ) |
| $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS) |
| clean: |
| rm -rf *.o $(PRG).elf *.eps *.bak *.a |
| rm -rf *.lst *.map $(EXTRA_CLEAN_FILES) |
| rm -rf $(PRG).hex |
| size: $(PRG).elf |
| $(SIZE) $(PRG).elf |
| lst: $(PRG).lst |
| %.lst: %.elf |
| $(OBJDUMP) -h -S $< > $@ |
| %.o : %.S |
| $(CC) -c $(ALL_ASFLAGS) $< -o $@ |
| text: hex |
| hex: $(PRG).hex |
| %.hex: %.elf |
| $(OBJCOPY) -j .text -j .data -O ihex $< $@ |
| /Designs/GPSRL03A/diskio.h |
|---|
| 0,0 → 1,64 |
| /*----------------------------------------------------------------------- |
| / Low level disk interface modlue include file R0.04a (C)ChaN, 2007 |
| /-----------------------------------------------------------------------*/ |
| #ifndef _DISKIO |
| #define _READONLY 0 /* 1: Read-only mode */ |
| #include "integer.h" |
| /* Status of Disk Functions */ |
| typedef BYTE DSTATUS; |
| /* Results of Disk Functions */ |
| typedef enum { |
| RES_OK = 0, /* 0: Successful */ |
| RES_ERROR, /* 1: R/W Error */ |
| RES_WRPRT, /* 2: Write Protected */ |
| RES_NOTRDY, /* 3: Not Ready */ |
| RES_PARERR /* 4: Invalid Parameter */ |
| } DRESULT; |
| /*---------------------------------------*/ |
| /* Prototypes for disk control functions */ |
| DSTATUS disk_initialize (BYTE); |
| DSTATUS disk_status (BYTE); |
| DRESULT disk_read (BYTE, BYTE*, DWORD, BYTE); |
| #if _READONLY == 0 |
| DRESULT disk_write (BYTE, const BYTE*, DWORD, BYTE); |
| #endif |
| DRESULT disk_ioctl (BYTE, BYTE, void*); |
| void disk_timerproc (void); |
| /* Disk Status Bits (DSTATUS) */ |
| #define STA_NOINIT 0x01 /* Drive not initialized */ |
| #define STA_NODISK 0x02 /* No medium in the drive */ |
| #define STA_PROTECT 0x04 /* Write protected */ |
| /* Command code for disk_ioctrl() */ |
| #define GET_SECTOR_COUNT 1 |
| #define GET_SECTOR_SIZE 2 |
| #define CTRL_SYNC 3 |
| #define CTRL_POWER 4 |
| #define CTRL_LOCK 5 |
| #define CTRL_EJECT 6 |
| #define MMC_GET_CSD 10 |
| #define MMC_GET_CID 11 |
| #define MMC_GET_OCR 12 |
| #define ATA_GET_REV 20 |
| #define ATA_GET_MODEL 21 |
| #define ATA_GET_SN 22 |
| #define _DISKIO |
| #endif |
| /Designs/GPSRL03A/ff.c |
|---|
| 0,0 → 1,2036 |
| /*----------------------------------------------------------------------------/ |
| / FatFs - FAT file system module R0.06 (C)ChaN, 2008 |
| /-----------------------------------------------------------------------------/ |
| / The FatFs module is an experimenal project to implement FAT file system to |
| / cheap microcontrollers. This is a free software and is opened for education, |
| / research and development under license policy of following trems. |
| / |
| / Copyright (C) 2008, ChaN, all right reserved. |
| / |
| / * The FatFs module is a free software and there is no warranty. |
| / * You can use, modify and/or redistribute it for personal, non-profit or |
| / commercial use without restriction under your responsibility. |
| / * Redistributions of source code must retain the above copyright notice. |
| / |
| /-----------------------------------------------------------------------------/ |
| / Feb 26,'06 R0.00 Prototype. |
| / |
| / Apr 29,'06 R0.01 First stable version. |
| / |
| / Jun 01,'06 R0.02 Added FAT12 support. |
| / Removed unbuffered mode. |
| / Fixed a problem on small (<32M) patition. |
| / Jun 10,'06 R0.02a Added a configuration option (_FS_MINIMUM). |
| / |
| / Sep 22,'06 R0.03 Added f_rename(). |
| / Changed option _FS_MINIMUM to _FS_MINIMIZE. |
| / Dec 11,'06 R0.03a Improved cluster scan algolithm to write files fast. |
| / Fixed f_mkdir() creates incorrect directory on FAT32. |
| / |
| / Feb 04,'07 R0.04 Supported multiple drive system. |
| / Changed some interfaces for multiple drive system. |
| / Changed f_mountdrv() to f_mount(). |
| / Added f_mkfs(). |
| / Apr 01,'07 R0.04a Supported multiple partitions on a plysical drive. |
| / Added a capability of extending file size to f_lseek(). |
| / Added minimization level 3. |
| / Fixed an endian sensitive code in f_mkfs(). |
| / May 05,'07 R0.04b Added a configuration option _USE_NTFLAG. |
| / Added FSInfo support. |
| / Fixed DBCS name can result FR_INVALID_NAME. |
| / Fixed short seek (<= csize) collapses the file object. |
| / |
| / Aug 25,'07 R0.05 Changed arguments of f_read(), f_write() and f_mkfs(). |
| / Fixed f_mkfs() on FAT32 creates incorrect FSInfo. |
| / Fixed f_mkdir() on FAT32 creates incorrect directory. |
| / Feb 03,'08 R0.05a Added f_truncate() and f_utime(). |
| / Fixed off by one error at FAT sub-type determination. |
| / Fixed btr in f_read() can be mistruncated. |
| / Fixed cached sector is not flushed when create and close |
| / without write. |
| / |
| / Apr 01,'08 R0.06 Added fputc(), fputs(), fprintf() and fgets(). |
| / Improved performance of f_lseek() on moving to the same |
| / or following cluster. |
| /---------------------------------------------------------------------------*/ |
| #include <string.h> |
| #include "ff.h" /* FatFs declarations */ |
| #include "diskio.h" /* Include file for user provided disk functions */ |
| /*-------------------------------------------------------------------------- |
| Module Private Functions |
| ---------------------------------------------------------------------------*/ |
| static |
| FATFS *FatFs[_DRIVES]; /* Pointer to the file system objects (logical drives) */ |
| static |
| WORD fsid; /* File system mount ID */ |
| /*-----------------------------------------------------------------------*/ |
| /* Change window offset */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BOOL move_window ( /* TRUE: successful, FALSE: failed */ |
| FATFS *fs, /* File system object */ |
| DWORD sector /* Sector number to make apperance in the fs->win[] */ |
| ) /* Move to zero only writes back dirty window */ |
| { |
| DWORD wsect; |
| wsect = fs->winsect; |
| if (wsect != sector) { /* Changed current window */ |
| #if !_FS_READONLY |
| BYTE n; |
| if (fs->winflag) { /* Write back dirty window if needed */ |
| if (disk_write(fs->drive, fs->win, wsect, 1) != RES_OK) |
| return FALSE; |
| fs->winflag = 0; |
| if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */ |
| for (n = fs->n_fats; n >= 2; n--) { /* Refrect the change to FAT copy */ |
| wsect += fs->sects_fat; |
| disk_write(fs->drive, fs->win, wsect, 1); |
| } |
| } |
| } |
| #endif |
| if (sector) { |
| if (disk_read(fs->drive, fs->win, sector, 1) != RES_OK) |
| return FALSE; |
| fs->winsect = sector; |
| } |
| } |
| return TRUE; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Clean-up cached data */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| FRESULT sync ( /* FR_OK: successful, FR_RW_ERROR: failed */ |
| FATFS *fs /* File system object */ |
| ) |
| { |
| fs->winflag = 1; |
| if (!move_window(fs, 0)) return FR_RW_ERROR; |
| #if _USE_FSINFO |
| /* Update FSInfo sector if needed */ |
| if (fs->fs_type == FS_FAT32 && fs->fsi_flag) { |
| fs->winsect = 0; |
| memset(fs->win, 0, 512); |
| ST_WORD(&fs->win[BS_55AA], 0xAA55); |
| ST_DWORD(&fs->win[FSI_LeadSig], 0x41615252); |
| ST_DWORD(&fs->win[FSI_StrucSig], 0x61417272); |
| ST_DWORD(&fs->win[FSI_Free_Count], fs->free_clust); |
| ST_DWORD(&fs->win[FSI_Nxt_Free], fs->last_clust); |
| disk_write(fs->drive, fs->win, fs->fsi_sector, 1); |
| fs->fsi_flag = 0; |
| } |
| #endif |
| /* Make sure that no pending write process in the physical drive */ |
| if (disk_ioctl(fs->drive, CTRL_SYNC, NULL) != RES_OK) |
| return FR_RW_ERROR; |
| return FR_OK; |
| } |
| #endif |
| /*-----------------------------------------------------------------------*/ |
| /* Get a cluster status */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| DWORD get_cluster ( /* 0,>=2: successful, 1: failed */ |
| FATFS *fs, /* File system object */ |
| DWORD clust /* Cluster# to get the link information */ |
| ) |
| { |
| WORD wc, bc; |
| DWORD fatsect; |
| if (clust >= 2 && clust < fs->max_clust) { /* Is it a valid cluster#? */ |
| fatsect = fs->fatbase; |
| switch (fs->fs_type) { |
| case FS_FAT12 : |
| bc = (WORD)clust * 3 / 2; |
| if (!move_window(fs, fatsect + (bc / SS(fs)))) break; |
| wc = fs->win[bc & (SS(fs) - 1)]; bc++; |
| if (!move_window(fs, fatsect + (bc / SS(fs)))) break; |
| wc |= (WORD)fs->win[bc & (SS(fs) - 1)] << 8; |
| return (clust & 1) ? (wc >> 4) : (wc & 0xFFF); |
| case FS_FAT16 : |
| if (!move_window(fs, fatsect + (clust / (SS(fs) / 2)))) break; |
| return LD_WORD(&fs->win[((WORD)clust * 2) & (SS(fs) - 1)]); |
| case FS_FAT32 : |
| if (!move_window(fs, fatsect + (clust / (SS(fs) / 4)))) break; |
| return LD_DWORD(&fs->win[((WORD)clust * 4) & (SS(fs) - 1)]) & 0x0FFFFFFF; |
| } |
| } |
| return 1; /* Out of cluster range, or an error occured */ |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Change a cluster status */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| BOOL put_cluster ( /* TRUE: successful, FALSE: failed */ |
| FATFS *fs, /* File system object */ |
| DWORD clust, /* Cluster# to change (must be 2 to fs->max_clust-1) */ |
| DWORD val /* New value to mark the cluster */ |
| ) |
| { |
| WORD bc; |
| BYTE *p; |
| DWORD fatsect; |
| fatsect = fs->fatbase; |
| switch (fs->fs_type) { |
| case FS_FAT12 : |
| bc = (WORD)clust * 3 / 2; |
| if (!move_window(fs, fatsect + (bc / SS(fs)))) return FALSE; |
| p = &fs->win[bc & (SS(fs) - 1)]; |
| *p = (clust & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; |
| bc++; |
| fs->winflag = 1; |
| if (!move_window(fs, fatsect + (bc / SS(fs)))) return FALSE; |
| p = &fs->win[bc & (SS(fs) - 1)]; |
| *p = (clust & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); |
| break; |
| case FS_FAT16 : |
| if (!move_window(fs, fatsect + (clust / (SS(fs) / 2)))) return FALSE; |
| ST_WORD(&fs->win[((WORD)clust * 2) & (SS(fs) - 1)], (WORD)val); |
| break; |
| case FS_FAT32 : |
| if (!move_window(fs, fatsect + (clust / (SS(fs) / 4)))) return FALSE; |
| ST_DWORD(&fs->win[((WORD)clust * 4) & (SS(fs) - 1)], val); |
| break; |
| default : |
| return FALSE; |
| } |
| fs->winflag = 1; |
| return TRUE; |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Remove a cluster chain */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| BOOL remove_chain ( /* TRUE: successful, FALSE: failed */ |
| FATFS *fs, /* File system object */ |
| DWORD clust /* Cluster# to remove chain from */ |
| ) |
| { |
| DWORD nxt; |
| while (clust >= 2 && clust < fs->max_clust) { |
| nxt = get_cluster(fs, clust); |
| if (nxt == 1) return FALSE; |
| if (!put_cluster(fs, clust, 0)) return FALSE; |
| if (fs->free_clust != 0xFFFFFFFF) { |
| fs->free_clust++; |
| #if _USE_FSINFO |
| fs->fsi_flag = 1; |
| #endif |
| } |
| clust = nxt; |
| } |
| return TRUE; |
| } |
| #endif |
| /*-----------------------------------------------------------------------*/ |
| /* Stretch or create a cluster chain */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| DWORD create_chain ( /* 0: No free cluster, 1: Error, >=2: New cluster number */ |
| FATFS *fs, /* File system object */ |
| DWORD clust /* Cluster# to stretch, 0 means create new */ |
| ) |
| { |
| DWORD cstat, ncl, scl, mcl = fs->max_clust; |
| if (clust == 0) { /* Create new chain */ |
| scl = fs->last_clust; /* Get suggested start point */ |
| if (scl == 0 || scl >= mcl) scl = 1; |
| } |
| else { /* Stretch existing chain */ |
| cstat = get_cluster(fs, clust); /* Check the cluster status */ |
| if (cstat < 2) return 1; /* It is an invalid cluster */ |
| if (cstat < mcl) return cstat; /* It is already followed by next cluster */ |
| scl = clust; |
| } |
| ncl = scl; /* Start cluster */ |
| for (;;) { |
| ncl++; /* Next cluster */ |
| if (ncl >= mcl) { /* Wrap around */ |
| ncl = 2; |
| if (ncl > scl) return 0; /* No free custer */ |
| } |
| cstat = get_cluster(fs, ncl); /* Get the cluster status */ |
| if (cstat == 0) break; /* Found a free cluster */ |
| if (cstat == 1) return 1; /* Any error occured */ |
| if (ncl == scl) return 0; /* No free custer */ |
| } |
| if (!put_cluster(fs, ncl, 0x0FFFFFFF)) return 1; /* Mark the new cluster "in use" */ |
| if (clust != 0 && !put_cluster(fs, clust, ncl)) return 1; /* Link it to previous one if needed */ |
| fs->last_clust = ncl; /* Update fsinfo */ |
| if (fs->free_clust != 0xFFFFFFFF) { |
| fs->free_clust--; |
| #if _USE_FSINFO |
| fs->fsi_flag = 1; |
| #endif |
| } |
| return ncl; /* Return new cluster number */ |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Get sector# from cluster# */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| DWORD clust2sect ( /* !=0: sector number, 0: failed - invalid cluster# */ |
| FATFS *fs, /* File system object */ |
| DWORD clust /* Cluster# to be converted */ |
| ) |
| { |
| clust -= 2; |
| if (clust >= (fs->max_clust - 2)) return 0; /* Invalid cluster# */ |
| return clust * fs->csize + fs->database; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Move directory pointer to next */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BOOL next_dir_entry ( /* TRUE: successful, FALSE: could not move next */ |
| DIR *dj /* Pointer to directory object */ |
| ) |
| { |
| DWORD clust; |
| WORD idx; |
| idx = dj->index + 1; |
| if ((idx & ((SS(dj->fs) - 1) / 32)) == 0) { /* Table sector changed? */ |
| dj->sect++; /* Next sector */ |
| if (dj->clust == 0) { /* In static table */ |
| if (idx >= dj->fs->n_rootdir) return FALSE; /* Reached to end of table */ |
| } else { /* In dynamic table */ |
| if (((idx / (SS(dj->fs) / 32)) & (dj->fs->csize - 1)) == 0) { /* Cluster changed? */ |
| clust = get_cluster(dj->fs, dj->clust); /* Get next cluster */ |
| if (clust < 2 || clust >= dj->fs->max_clust) /* Reached to end of table */ |
| return FALSE; |
| dj->clust = clust; /* Initialize for new cluster */ |
| dj->sect = clust2sect(dj->fs, clust); |
| } |
| } |
| } |
| dj->index = idx; /* Lower several bits of dj->index indicates offset in dj->sect */ |
| return TRUE; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Get file status from directory entry */ |
| /*-----------------------------------------------------------------------*/ |
| #if _FS_MINIMIZE <= 1 |
| static |
| void get_fileinfo ( /* No return code */ |
| FILINFO *finfo, /* Ptr to store the file information */ |
| const BYTE *dir /* Ptr to the directory entry */ |
| ) |
| { |
| BYTE n, c, a; |
| char *p; |
| p = &finfo->fname[0]; |
| a = _USE_NTFLAG ? dir[DIR_NTres] : 0; /* NT flag */ |
| for (n = 0; n < 8; n++) { /* Convert file name (body) */ |
| c = dir[n]; |
| if (c == ' ') break; |
| if (c == 0x05) c = 0xE5; |
| if (a & 0x08 && c >= 'A' && c <= 'Z') c += 0x20; |
| *p++ = c; |
| } |
| if (dir[8] != ' ') { /* Convert file name (extension) */ |
| *p++ = '.'; |
| for (n = 8; n < 11; n++) { |
| c = dir[n]; |
| if (c == ' ') break; |
| if (a & 0x10 && c >= 'A' && c <= 'Z') c += 0x20; |
| *p++ = c; |
| } |
| } |
| *p = '\0'; |
| finfo->fattrib = dir[DIR_Attr]; /* Attribute */ |
| finfo->fsize = LD_DWORD(&dir[DIR_FileSize]); /* Size */ |
| finfo->fdate = LD_WORD(&dir[DIR_WrtDate]); /* Date */ |
| finfo->ftime = LD_WORD(&dir[DIR_WrtTime]); /* Time */ |
| } |
| #endif /* _FS_MINIMIZE <= 1 */ |
| /*-----------------------------------------------------------------------*/ |
| /* Pick a paragraph and create the name in format of directory entry */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| char make_dirfile ( /* 1: error - detected an invalid format, '\0'or'/': next character */ |
| const char **path, /* Pointer to the file path pointer */ |
| char *dirname /* Pointer to directory name buffer {Name(8), Ext(3), NT flag(1)} */ |
| ) |
| { |
| BYTE n, t, c, a, b; |
| memset(dirname, ' ', 8+3); /* Fill buffer with spaces */ |
| a = 0; b = 0x18; /* NT flag */ |
| n = 0; t = 8; |
| for (;;) { |
| c = *(*path)++; |
| if (c == '\0' || c == '/') { /* Reached to end of str or directory separator */ |
| if (n == 0) break; |
| dirname[11] = _USE_NTFLAG ? (a & b) : 0; |
| return c; |
| } |
| if (c <= ' ' || c == 0x7F) break; /* Reject invisible chars */ |
| if (c == '.') { |
| if (!(a & 1) && n >= 1 && n <= 8) { /* Enter extension part */ |
| n = 8; t = 11; continue; |
| } |
| break; |
| } |
| if (_USE_SJIS && |
| ((c >= 0x81 && c <= 0x9F) || /* Accept S-JIS code */ |
| (c >= 0xE0 && c <= 0xFC))) { |
| if (n == 0 && c == 0xE5) /* Change heading \xE5 to \x05 */ |
| c = 0x05; |
| a ^= 0x01; goto md_l2; |
| } |
| if (c == '"') break; /* Reject " */ |
| if (c <= ')') goto md_l1; /* Accept ! # $ % & ' ( ) */ |
| if (c <= ',') break; /* Reject * + , */ |
| if (c <= '9') goto md_l1; /* Accept - 0-9 */ |
| if (c <= '?') break; /* Reject : ; < = > ? */ |
| if (!(a & 1)) { /* These checks are not applied to S-JIS 2nd byte */ |
| if (c == '|') break; /* Reject | */ |
| if (c >= '[' && c <= ']') break;/* Reject [ \ ] */ |
| if (_USE_NTFLAG && c >= 'A' && c <= 'Z') |
| (t == 8) ? (b &= 0xF7) : (b &= 0xEF); |
| if (c >= 'a' && c <= 'z') { /* Convert to upper case */ |
| c -= 0x20; |
| if (_USE_NTFLAG) (t == 8) ? (a |= 0x08) : (a |= 0x10); |
| } |
| } |
| md_l1: |
| a &= 0xFE; |
| md_l2: |
| if (n >= t) break; |
| dirname[n++] = c; |
| } |
| return 1; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Trace a file path */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| FRESULT trace_path ( /* FR_OK(0): successful, !=0: error code */ |
| DIR *dj, /* Pointer to directory object to return last directory */ |
| char *fn, /* Pointer to last segment name to return {file(8),ext(3),attr(1)} */ |
| const char *path, /* Full-path string to trace a file or directory */ |
| BYTE **dir /* Pointer to pointer to found entry to retutn */ |
| ) |
| { |
| DWORD clust; |
| char ds; |
| BYTE *dptr = NULL; |
| FATFS *fs = dj->fs; |
| /* Initialize directory object */ |
| clust = fs->dirbase; |
| if (fs->fs_type == FS_FAT32) { |
| dj->clust = dj->sclust = clust; |
| dj->sect = clust2sect(fs, clust); |
| } else { |
| dj->clust = dj->sclust = 0; |
| dj->sect = clust; |
| } |
| dj->index = 0; |
| if (*path == '\0') { /* Null path means the root directory */ |
| *dir = NULL; return FR_OK; |
| } |
| for (;;) { |
| ds = make_dirfile(&path, fn); /* Get a paragraph into fn[] */ |
| if (ds == 1) return FR_INVALID_NAME; |
| for (;;) { |
| if (!move_window(fs, dj->sect)) return FR_RW_ERROR; |
| dptr = &fs->win[(dj->index & ((SS(fs) - 1) / 32)) * 32]; /* Pointer to the directory entry */ |
| if (dptr[DIR_Name] == 0) /* Has it reached to end of dir? */ |
| return !ds ? FR_NO_FILE : FR_NO_PATH; |
| if (dptr[DIR_Name] != 0xE5 /* Matched? */ |
| && !(dptr[DIR_Attr] & AM_VOL) |
| && !memcmp(&dptr[DIR_Name], fn, 8+3) ) break; |
| if (!next_dir_entry(dj)) /* Next directory pointer */ |
| return !ds ? FR_NO_FILE : FR_NO_PATH; |
| } |
| if (!ds) { *dir = dptr; return FR_OK; } /* Matched with end of path */ |
| if (!(dptr[DIR_Attr] & AM_DIR)) return FR_NO_PATH; /* Cannot trace because it is a file */ |
| clust = ((DWORD)LD_WORD(&dptr[DIR_FstClusHI]) << 16) | LD_WORD(&dptr[DIR_FstClusLO]); /* Get cluster# of the directory */ |
| dj->clust = dj->sclust = clust; /* Restart scanning at the new directory */ |
| dj->sect = clust2sect(fs, clust); |
| dj->index = 2; |
| } |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Reserve a directory entry */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| FRESULT reserve_direntry ( /* FR_OK: successful, FR_DENIED: no free entry, FR_RW_ERROR: a disk error occured */ |
| DIR *dj, /* Target directory to create new entry */ |
| BYTE **dir /* Pointer to pointer to created entry to retutn */ |
| ) |
| { |
| DWORD clust, sector; |
| BYTE c, n, *dptr; |
| FATFS *fs = dj->fs; |
| /* Re-initialize directory object */ |
| clust = dj->sclust; |
| if (clust != 0) { /* Dyanmic directory table */ |
| dj->clust = clust; |
| dj->sect = clust2sect(fs, clust); |
| } else { /* Static directory table */ |
| dj->sect = fs->dirbase; |
| } |
| dj->index = 0; |
| do { |
| if (!move_window(fs, dj->sect)) return FR_RW_ERROR; |
| dptr = &fs->win[(dj->index & ((SS(dj->fs) - 1) / 32)) * 32]; /* Pointer to the directory entry */ |
| c = dptr[DIR_Name]; |
| if (c == 0 || c == 0xE5) { /* Found an empty entry */ |
| *dir = dptr; return FR_OK; |
| } |
| } while (next_dir_entry(dj)); /* Next directory pointer */ |
| /* Reached to end of the directory table */ |
| /* Abort when it is a static table or could not stretch dynamic table */ |
| if (clust == 0 || !(clust = create_chain(fs, dj->clust))) return FR_DENIED; |
| if (clust == 1 || !move_window(fs, 0)) return FR_RW_ERROR; |
| /* Cleanup the expanded table */ |
| fs->winsect = sector = clust2sect(fs, clust); |
| memset(fs->win, 0, SS(fs)); |
| for (n = fs->csize; n; n--) { |
| if (disk_write(fs->drive, fs->win, sector, 1) != RES_OK) |
| return FR_RW_ERROR; |
| sector++; |
| } |
| fs->winflag = 1; |
| *dir = fs->win; |
| return FR_OK; |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Load boot record and check if it is an FAT boot record */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record or error */ |
| FATFS *fs, /* File system object */ |
| DWORD sect /* Sector# (lba) to check if it is an FAT boot record or not */ |
| ) |
| { |
| if (disk_read(fs->drive, fs->win, sect, 1) != RES_OK) /* Load boot record */ |
| return 2; |
| if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature (always placed at offset 510 even if the sector size is >512) */ |
| return 2; |
| if (!memcmp(&fs->win[BS_FilSysType], "FAT", 3)) /* Check FAT signature */ |
| return 0; |
| if (!memcmp(&fs->win[BS_FilSysType32], "FAT32", 5) && !(fs->win[BPB_ExtFlags] & 0x80)) |
| return 0; |
| return 1; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Make sure that the file system is valid */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| FRESULT auto_mount ( /* FR_OK(0): successful, !=0: any error occured */ |
| const char **path, /* Pointer to pointer to the path name (drive number) */ |
| FATFS **rfs, /* Pointer to pointer to the found file system object */ |
| BYTE chk_wp /* !=0: Check media write protection for write access */ |
| ) |
| { |
| BYTE drv, fmt, *tbl; |
| DSTATUS stat; |
| DWORD bootsect, fatsize, totalsect, maxclust; |
| const char *p = *path; |
| FATFS *fs; |
| /* Get drive number from the path name */ |
| while (*p == ' ') p++; /* Strip leading spaces */ |
| drv = p[0] - '0'; /* Is there a drive number? */ |
| if (drv <= 9 && p[1] == ':') |
| p += 2; /* Found a drive number, get and strip it */ |
| else |
| drv = 0; /* No drive number is given, use drive number 0 as default */ |
| if (*p == '/') p++; /* Strip heading slash */ |
| *path = p; /* Return pointer to the path name */ |
| /* Check if the drive number is valid or not */ |
| if (drv >= _DRIVES) return FR_INVALID_DRIVE; /* Is the drive number valid? */ |
| *rfs = fs = FatFs[drv]; /* Returen pointer to the corresponding file system object */ |
| if (!fs) return FR_NOT_ENABLED; /* Is the file system object registered? */ |
| if (fs->fs_type) { /* If the logical drive has been mounted */ |
| stat = disk_status(fs->drive); |
| if (!(stat & STA_NOINIT)) { /* and physical drive is kept initialized (has not been changed), */ |
| #if !_FS_READONLY |
| if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ |
| return FR_WRITE_PROTECTED; |
| #endif |
| return FR_OK; /* The file system object is valid */ |
| } |
| } |
| /* The logical drive must be re-mounted. Following code attempts to mount the logical drive */ |
| memset(fs, 0, sizeof(FATFS)); /* Clean-up the file system object */ |
| fs->drive = LD2PD(drv); /* Bind the logical drive and a physical drive */ |
| stat = disk_initialize(fs->drive); /* Initialize low level disk I/O layer */ |
| if (stat & STA_NOINIT) /* Check if the drive is ready */ |
| return FR_NOT_READY; |
| #if S_MAX_SIZ > 512 /* Get disk sector size if needed */ |
| if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK || SS(fs) > S_MAX_SIZ) |
| return FR_NO_FILESYSTEM; |
| #endif |
| #if !_FS_READONLY |
| if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ |
| return FR_WRITE_PROTECTED; |
| #endif |
| /* Search FAT partition on the drive */ |
| fmt = check_fs(fs, bootsect = 0); /* Check sector 0 as an SFD format */ |
| if (fmt == 1) { /* Not an FAT boot record, it may be patitioned */ |
| /* Check a partition listed in top of the partition table */ |
| tbl = &fs->win[MBR_Table + LD2PT(drv) * 16]; /* Partition table */ |
| if (tbl[4]) { /* Is the partition existing? */ |
| bootsect = LD_DWORD(&tbl[8]); /* Partition offset in LBA */ |
| fmt = check_fs(fs, bootsect); /* Check the partition */ |
| } |
| } |
| if (fmt || LD_WORD(&fs->win[BPB_BytsPerSec]) != SS(fs)) /* No valid FAT patition is found */ |
| return FR_NO_FILESYSTEM; |
| /* Initialize the file system object */ |
| fatsize = LD_WORD(&fs->win[BPB_FATSz16]); /* Number of sectors per FAT */ |
| if (!fatsize) fatsize = LD_DWORD(&fs->win[BPB_FATSz32]); |
| fs->sects_fat = fatsize; |
| fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */ |
| fatsize *= fs->n_fats; /* (Number of sectors in FAT area) */ |
| fs->fatbase = bootsect + LD_WORD(&fs->win[BPB_RsvdSecCnt]); /* FAT start sector (lba) */ |
| fs->csize = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */ |
| fs->n_rootdir = LD_WORD(&fs->win[BPB_RootEntCnt]); /* Nmuber of root directory entries */ |
| totalsect = LD_WORD(&fs->win[BPB_TotSec16]); /* Number of sectors on the file system */ |
| if (!totalsect) totalsect = LD_DWORD(&fs->win[BPB_TotSec32]); |
| fs->max_clust = maxclust = (totalsect /* max_clust = Last cluster# + 1 */ |
| - LD_WORD(&fs->win[BPB_RsvdSecCnt]) - fatsize - fs->n_rootdir / (SS(fs)/32) |
| ) / fs->csize + 2; |
| fmt = FS_FAT12; /* Determine the FAT sub type */ |
| if (maxclust >= 0xFF7) fmt = FS_FAT16; |
| if (maxclust >= 0xFFF7) fmt = FS_FAT32; |
| if (fmt == FS_FAT32) |
| fs->dirbase = LD_DWORD(&fs->win[BPB_RootClus]); /* Root directory start cluster */ |
| else |
| fs->dirbase = fs->fatbase + fatsize; /* Root directory start sector (lba) */ |
| fs->database = fs->fatbase + fatsize + fs->n_rootdir / (SS(fs)/32); /* Data start sector (lba) */ |
| #if !_FS_READONLY |
| /* Initialize allocation information */ |
| fs->free_clust = 0xFFFFFFFF; |
| #if _USE_FSINFO |
| /* Get fsinfo if needed */ |
| if (fmt == FS_FAT32) { |
| fs->fsi_sector = bootsect + LD_WORD(&fs->win[BPB_FSInfo]); |
| if (disk_read(fs->drive, fs->win, fs->fsi_sector, 1) == RES_OK && |
| LD_WORD(&fs->win[BS_55AA]) == 0xAA55 && |
| LD_DWORD(&fs->win[FSI_LeadSig]) == 0x41615252 && |
| LD_DWORD(&fs->win[FSI_StrucSig]) == 0x61417272) { |
| fs->last_clust = LD_DWORD(&fs->win[FSI_Nxt_Free]); |
| fs->free_clust = LD_DWORD(&fs->win[FSI_Free_Count]); |
| } |
| } |
| #endif |
| #endif |
| fs->fs_type = fmt; /* FAT syb-type */ |
| fs->id = ++fsid; /* File system mount ID */ |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Check if the file/dir object is valid or not */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| FRESULT validate ( /* FR_OK(0): The object is valid, !=0: Invalid */ |
| const FATFS *fs, /* Pointer to the file system object */ |
| WORD id /* Member id of the target object to be checked */ |
| ) |
| { |
| if (!fs || !fs->fs_type || fs->id != id) |
| return FR_INVALID_OBJECT; |
| if (disk_status(fs->drive) & STA_NOINIT) |
| return FR_NOT_READY; |
| return FR_OK; |
| } |
| /*-------------------------------------------------------------------------- |
| Public Functions |
| --------------------------------------------------------------------------*/ |
| /*-----------------------------------------------------------------------*/ |
| /* Mount/Unmount a Locical Drive */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_mount ( |
| BYTE drv, /* Logical drive number to be mounted/unmounted */ |
| FATFS *fs /* Pointer to new file system object (NULL for unmount)*/ |
| ) |
| { |
| if (drv >= _DRIVES) return FR_INVALID_DRIVE; |
| if (FatFs[drv]) FatFs[drv]->fs_type = 0; /* Clear old object */ |
| FatFs[drv] = fs; /* Register and clear new object */ |
| if (fs) fs->fs_type = 0; |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Open or Create a File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_open ( |
| FIL *fp, /* Pointer to the blank file object */ |
| const char *path, /* Pointer to the file name */ |
| BYTE mode /* Access mode and file open mode flags */ |
| ) |
| { |
| FRESULT res; |
| DIR dj; |
| BYTE *dir; |
| char fn[8+3+1]; |
| fp->fs = NULL; /* Clear file object */ |
| #if !_FS_READONLY |
| mode &= (FA_READ|FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW); |
| res = auto_mount(&path, &dj.fs, (BYTE)(mode & (FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW))); |
| #else |
| mode &= FA_READ; |
| res = auto_mount(&path, &dj.fs, 0); |
| #endif |
| if (res != FR_OK) return res; |
| res = trace_path(&dj, fn, path, &dir); /* Trace the file path */ |
| #if !_FS_READONLY |
| /* Create or Open a file */ |
| if (mode & (FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW)) { |
| DWORD ps, rs; |
| if (res != FR_OK) { /* No file, create new */ |
| if (res != FR_NO_FILE) return res; |
| res = reserve_direntry(&dj, &dir); |
| if (res != FR_OK) return res; |
| memset(dir, 0, 32); /* Initialize the new entry with open name */ |
| memcpy(&dir[DIR_Name], fn, 8+3); |
| dir[DIR_NTres] = fn[11]; |
| mode |= FA_CREATE_ALWAYS; |
| } |
| else { /* Any object is already existing */ |
| if (mode & FA_CREATE_NEW) /* Cannot create new */ |
| return FR_EXIST; |
| if (!dir || (dir[DIR_Attr] & (AM_RDO|AM_DIR))) /* Cannot overwrite it (R/O or DIR) */ |
| return FR_DENIED; |
| if (mode & FA_CREATE_ALWAYS) { /* Resize it to zero if needed */ |
| rs = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]); /* Get start cluster */ |
| ST_WORD(&dir[DIR_FstClusHI], 0); /* cluster = 0 */ |
| ST_WORD(&dir[DIR_FstClusLO], 0); |
| ST_DWORD(&dir[DIR_FileSize], 0); /* size = 0 */ |
| dj.fs->winflag = 1; |
| ps = dj.fs->winsect; /* Remove the cluster chain */ |
| if (!remove_chain(dj.fs, rs) || !move_window(dj.fs, ps)) |
| return FR_RW_ERROR; |
| dj.fs->last_clust = rs - 1; /* Reuse the cluster hole */ |
| } |
| } |
| if (mode & FA_CREATE_ALWAYS) { |
| dir[DIR_Attr] = 0; /* Reset attribute */ |
| ps = get_fattime(); |
| ST_DWORD(&dir[DIR_CrtTime], ps); /* Created time */ |
| dj.fs->winflag = 1; |
| mode |= FA__WRITTEN; /* Set file changed flag */ |
| } |
| } |
| /* Open an existing file */ |
| else { |
| #endif /* !_FS_READONLY */ |
| if (res != FR_OK) return res; /* Trace failed */ |
| if (!dir || (dir[DIR_Attr] & AM_DIR)) /* It is a directory */ |
| return FR_NO_FILE; |
| #if !_FS_READONLY |
| if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */ |
| return FR_DENIED; |
| } |
| fp->dir_sect = dj.fs->winsect; /* Pointer to the directory entry */ |
| fp->dir_ptr = dir; |
| #endif |
| fp->flag = mode; /* File access mode */ |
| fp->org_clust = /* File start cluster */ |
| ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]); |
| fp->fsize = LD_DWORD(&dir[DIR_FileSize]); /* File size */ |
| fp->fptr = 0; fp->csect = 255; /* File pointer */ |
| fp->curr_sect = 0; |
| fp->fs = dj.fs; fp->id = dj.fs->id; /* Owner file system object of the file */ |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Read File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_read ( |
| FIL *fp, /* Pointer to the file object */ |
| void *buff, /* Pointer to data buffer */ |
| UINT btr, /* Number of bytes to read */ |
| UINT *br /* Pointer to number of bytes read */ |
| ) |
| { |
| FRESULT res; |
| DWORD clust, sect, remain; |
| UINT rcnt, cc; |
| BYTE *rbuff = buff; |
| *br = 0; |
| res = validate(fp->fs, fp->id); /* Check validity of the object */ |
| if (res != FR_OK) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_READ)) return FR_DENIED; /* Check access mode */ |
| remain = fp->fsize - fp->fptr; |
| if (btr > remain) btr = (UINT)remain; /* Truncate btr by remaining bytes */ |
| for ( ; btr; /* Repeat until all data transferred */ |
| rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) { |
| if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ |
| if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ |
| clust = (fp->fptr == 0) ? /* On the top of the file? */ |
| fp->org_clust : get_cluster(fp->fs, fp->curr_clust); |
| if (clust < 2 || clust >= fp->fs->max_clust) goto fr_error; |
| fp->curr_clust = clust; /* Update current cluster */ |
| fp->csect = 0; /* Reset sector address in the cluster */ |
| } |
| sect = clust2sect(fp->fs, fp->curr_clust) + fp->csect; /* Get current sector */ |
| cc = btr / SS(fp->fs); /* When remaining bytes >= sector size, */ |
| if (cc) { /* Read maximum contiguous sectors directly */ |
| if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */ |
| cc = fp->fs->csize - fp->csect; |
| if (disk_read(fp->fs->drive, rbuff, sect, (BYTE)cc) != RES_OK) |
| goto fr_error; |
| fp->csect += (BYTE)cc; /* Next sector address in the cluster */ |
| rcnt = SS(fp->fs) * cc; /* Number of bytes transferred */ |
| continue; |
| } |
| if (sect != fp->curr_sect) { /* Is window offset changed? */ |
| #if !_FS_READONLY |
| if (fp->flag & FA__DIRTY) { /* Write back file I/O buffer if needed */ |
| if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK) |
| goto fr_error; |
| fp->flag &= (BYTE)~FA__DIRTY; |
| } |
| #endif |
| if (disk_read(fp->fs->drive, fp->buffer, sect, 1) != RES_OK) /* Fill file I/O buffer with file data */ |
| goto fr_error; |
| fp->curr_sect = sect; |
| } |
| fp->csect++; /* Next sector address in the cluster */ |
| } |
| rcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Get partial sector from file I/O buffer */ |
| if (rcnt > btr) rcnt = btr; |
| memcpy(rbuff, &fp->buffer[fp->fptr % SS(fp->fs)], rcnt); |
| } |
| return FR_OK; |
| fr_error: /* Abort this file due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| return FR_RW_ERROR; |
| } |
| #if !_FS_READONLY |
| /*-----------------------------------------------------------------------*/ |
| /* Write File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_write ( |
| FIL *fp, /* Pointer to the file object */ |
| const void *buff, /* Pointer to the data to be written */ |
| UINT btw, /* Number of bytes to write */ |
| UINT *bw /* Pointer to number of bytes written */ |
| ) |
| { |
| FRESULT res; |
| DWORD clust, sect; |
| UINT wcnt, cc; |
| const BYTE *wbuff = buff; |
| *bw = 0; |
| res = validate(fp->fs, fp->id); /* Check validity of the object */ |
| if (res != FR_OK) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */ |
| if (fp->fsize + btw < fp->fsize) return FR_OK; /* File size cannot reach 4GB */ |
| for ( ; btw; /* Repeat until all data transferred */ |
| wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) { |
| if ((fp->fptr % SS(fp->fs)) == 0) { /* On the sector boundary? */ |
| if (fp->csect >= fp->fs->csize) { /* On the cluster boundary? */ |
| if (fp->fptr == 0) { /* On the top of the file? */ |
| clust = fp->org_clust; /* Follow from the origin */ |
| if (clust == 0) /* When there is no cluster chain, */ |
| fp->org_clust = clust = create_chain(fp->fs, 0); /* Create a new cluster chain */ |
| } else { /* Middle or end of the file */ |
| clust = create_chain(fp->fs, fp->curr_clust); /* Trace or streach cluster chain */ |
| } |
| if (clust == 0) break; /* Could not allocate a new cluster (disk full) */ |
| if (clust == 1 || clust >= fp->fs->max_clust) goto fw_error; |
| fp->curr_clust = clust; /* Update current cluster */ |
| fp->csect = 0; /* Reset sector address in the cluster */ |
| } |
| sect = clust2sect(fp->fs, fp->curr_clust) + fp->csect; /* Get current sector */ |
| cc = btw / SS(fp->fs); /* When remaining bytes >= sector size, */ |
| if (cc) { /* Write maximum contiguous sectors directly */ |
| if (fp->csect + cc > fp->fs->csize) /* Clip at cluster boundary */ |
| cc = fp->fs->csize - fp->csect; |
| if (disk_write(fp->fs->drive, wbuff, sect, (BYTE)cc) != RES_OK) |
| goto fw_error; |
| fp->csect += (BYTE)cc; /* Next sector address in the cluster */ |
| wcnt = SS(fp->fs) * cc; /* Number of bytes transferred */ |
| continue; |
| } |
| if (sect != fp->curr_sect) { /* Is window offset changed? */ |
| if (fp->flag & FA__DIRTY) { /* Write back file I/O buffer if needed */ |
| if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK) |
| goto fw_error; |
| fp->flag &= (BYTE)~FA__DIRTY; |
| } |
| if (fp->fptr < fp->fsize && /* Fill file I/O buffer with file data */ |
| disk_read(fp->fs->drive, fp->buffer, sect, 1) != RES_OK) |
| goto fw_error; |
| fp->curr_sect = sect; |
| } |
| fp->csect++; /* Next sector address in the cluster */ |
| } |
| wcnt = SS(fp->fs) - (fp->fptr % SS(fp->fs)); /* Put partial sector into file I/O buffer */ |
| if (wcnt > btw) wcnt = btw; |
| memcpy(&fp->buffer[fp->fptr % SS(fp->fs)], wbuff, wcnt); |
| fp->flag |= FA__DIRTY; |
| } |
| if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */ |
| fp->flag |= FA__WRITTEN; /* Set file changed flag */ |
| return FR_OK; |
| fw_error: /* Abort this file due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| return FR_RW_ERROR; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Synchronize the file object */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_sync ( |
| FIL *fp /* Pointer to the file object */ |
| ) |
| { |
| FRESULT res; |
| DWORD tim; |
| BYTE *dir; |
| res = validate(fp->fs, fp->id); /* Check validity of the object */ |
| if (res == FR_OK) { |
| if (fp->flag & FA__WRITTEN) { /* Has the file been written? */ |
| /* Write back data buffer if needed */ |
| if (fp->flag & FA__DIRTY) { |
| if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK) |
| return FR_RW_ERROR; |
| fp->flag &= (BYTE)~FA__DIRTY; |
| } |
| /* Update the directory entry */ |
| if (!move_window(fp->fs, fp->dir_sect)) |
| return FR_RW_ERROR; |
| dir = fp->dir_ptr; |
| dir[DIR_Attr] |= AM_ARC; /* Set archive bit */ |
| ST_DWORD(&dir[DIR_FileSize], fp->fsize); /* Update file size */ |
| ST_WORD(&dir[DIR_FstClusLO], fp->org_clust); /* Update start cluster */ |
| ST_WORD(&dir[DIR_FstClusHI], fp->org_clust >> 16); |
| tim = get_fattime(); /* Updated time */ |
| ST_DWORD(&dir[DIR_WrtTime], tim); |
| fp->flag &= (BYTE)~FA__WRITTEN; |
| res = sync(fp->fs); |
| } |
| } |
| return res; |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Close File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_close ( |
| FIL *fp /* Pointer to the file object to be closed */ |
| ) |
| { |
| FRESULT res; |
| #if !_FS_READONLY |
| res = f_sync(fp); |
| #else |
| res = validate(fp->fs, fp->id); |
| #endif |
| if (res == FR_OK) fp->fs = NULL; |
| return res; |
| } |
| #if _FS_MINIMIZE <= 2 |
| /*-----------------------------------------------------------------------*/ |
| /* Seek File R/W Pointer */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_lseek ( |
| FIL *fp, /* Pointer to the file object */ |
| DWORD ofs /* File pointer from top of file */ |
| ) |
| { |
| FRESULT res; |
| DWORD clust, csize, nsect, ifptr; |
| res = validate(fp->fs, fp->id); /* Check validity of the object */ |
| if (res != FR_OK) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; |
| if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */ |
| #if !_FS_READONLY |
| && !(fp->flag & FA_WRITE) |
| #endif |
| ) ofs = fp->fsize; |
| ifptr = fp->fptr; |
| fp->fptr = 0; fp->csect = 255; |
| nsect = 0; |
| if (ofs > 0) { |
| csize = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */ |
| if (ifptr > 0 && |
| (ofs - 1) / csize >= (ifptr - 1) / csize) {/* When seek to same or following cluster, */ |
| fp->fptr = (ifptr - 1) & ~(csize - 1); /* start from the current cluster */ |
| ofs -= fp->fptr; |
| clust = fp->curr_clust; |
| } else { /* When seek to back cluster, */ |
| clust = fp->org_clust; /* start from the first cluster */ |
| #if !_FS_READONLY |
| if (clust == 0) { /* If no cluster chain, create a new chain */ |
| clust = create_chain(fp->fs, 0); |
| if (clust == 1) goto fk_error; |
| fp->org_clust = clust; |
| } |
| #endif |
| fp->curr_clust = clust; |
| } |
| if (clust != 0) { |
| while (ofs > csize) { /* Cluster following loop */ |
| #if !_FS_READONLY |
| if (fp->flag & FA_WRITE) { /* Check if in write mode or not */ |
| clust = create_chain(fp->fs, clust); /* Force streached if in write mode */ |
| if (clust == 0) { /* When disk gets full, clip file size */ |
| ofs = csize; break; |
| } |
| } else |
| #endif |
| clust = get_cluster(fp->fs, clust); /* Follow cluster chain if not in write mode */ |
| if (clust < 2 || clust >= fp->fs->max_clust) goto fk_error; |
| fp->curr_clust = clust; |
| fp->fptr += csize; |
| ofs -= csize; |
| } |
| fp->fptr += ofs; |
| fp->csect = (BYTE)(ofs / SS(fp->fs)); /* Sector offset in the cluster */ |
| if (ofs & (SS(fp->fs) - 1)) { |
| nsect = clust2sect(fp->fs, clust) + fp->csect; /* Current sector */ |
| fp->csect++; |
| } |
| } |
| } |
| if (nsect && nsect != fp->curr_sect) { |
| #if !_FS_READONLY |
| if (fp->flag & FA__DIRTY) { /* Write-back dirty buffer if needed */ |
| if (disk_write(fp->fs->drive, fp->buffer, fp->curr_sect, 1) != RES_OK) |
| goto fk_error; |
| fp->flag &= (BYTE)~FA__DIRTY; |
| } |
| #endif |
| if (disk_read(fp->fs->drive, fp->buffer, nsect, 1) != RES_OK) |
| goto fk_error; |
| fp->curr_sect = nsect; |
| } |
| #if !_FS_READONLY |
| if (fp->fptr > fp->fsize) { /* Set changed flag if the file was extended */ |
| fp->fsize = fp->fptr; |
| fp->flag |= FA__WRITTEN; |
| } |
| #endif |
| return FR_OK; |
| fk_error: /* Abort this file due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| return FR_RW_ERROR; |
| } |
| #if _FS_MINIMIZE <= 1 |
| /*-----------------------------------------------------------------------*/ |
| /* Create a directroy object */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_opendir ( |
| DIR *dj, /* Pointer to directory object to create */ |
| const char *path /* Pointer to the directory path */ |
| ) |
| { |
| FRESULT res; |
| BYTE *dir; |
| char fn[8+3+1]; |
| res = auto_mount(&path, &dj->fs, 0); |
| if (res == FR_OK) { |
| res = trace_path(dj, fn, path, &dir); /* Trace the directory path */ |
| if (res == FR_OK) { /* Trace completed */ |
| if (dir) { /* It is not the root dir */ |
| if (dir[DIR_Attr] & AM_DIR) { /* The entry is a directory */ |
| dj->clust = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]); |
| dj->sect = clust2sect(dj->fs, dj->clust); |
| dj->index = 2; |
| } else { /* The entry is not a directory */ |
| res = FR_NO_FILE; |
| } |
| } |
| dj->id = dj->fs->id; |
| } |
| } |
| return res; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Read Directory Entry in Sequense */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_readdir ( |
| DIR *dj, /* Pointer to the directory object */ |
| FILINFO *finfo /* Pointer to file information to return */ |
| ) |
| { |
| BYTE *dir, c, res; |
| res = validate(dj->fs, dj->id); /* Check validity of the object */ |
| if (res != FR_OK) return res; |
| finfo->fname[0] = 0; |
| while (dj->sect) { |
| if (!move_window(dj->fs, dj->sect)) |
| return FR_RW_ERROR; |
| dir = &dj->fs->win[(dj->index & ((SS(dj->fs) - 1) >> 5)) * 32]; /* pointer to the directory entry */ |
| c = dir[DIR_Name]; |
| if (c == 0) break; /* Has it reached to end of dir? */ |
| if (c != 0xE5 && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */ |
| get_fileinfo(finfo, dir); |
| if (!next_dir_entry(dj)) dj->sect = 0; /* Next entry */ |
| if (finfo->fname[0]) break; /* Found valid entry */ |
| } |
| return FR_OK; |
| } |
| #if _FS_MINIMIZE == 0 |
| /*-----------------------------------------------------------------------*/ |
| /* Get File Status */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_stat ( |
| const char *path, /* Pointer to the file path */ |
| FILINFO *finfo /* Pointer to file information to return */ |
| ) |
| { |
| FRESULT res; |
| DIR dj; |
| BYTE *dir; |
| char fn[8+3+1]; |
| res = auto_mount(&path, &dj.fs, 0); |
| if (res == FR_OK) { |
| res = trace_path(&dj, fn, path, &dir); /* Trace the file path */ |
| if (res == FR_OK) { /* Trace completed */ |
| if (dir) /* Found an object */ |
| get_fileinfo(finfo, dir); |
| else /* It is root dir */ |
| res = FR_INVALID_NAME; |
| } |
| } |
| return res; |
| } |
| #if !_FS_READONLY |
| /*-----------------------------------------------------------------------*/ |
| /* Truncate File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_truncate ( |
| FIL *fp /* Pointer to the file object */ |
| ) |
| { |
| FRESULT res; |
| DWORD ncl; |
| res = validate(fp->fs, fp->id); /* Check validity of the object */ |
| if (res != FR_OK) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */ |
| if (fp->fsize > fp->fptr) { |
| fp->fsize = fp->fptr; /* Set file size to current R/W point */ |
| fp->flag |= FA__WRITTEN; |
| if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */ |
| if (!remove_chain(fp->fs, fp->org_clust)) goto ft_error; |
| fp->org_clust = 0; |
| } else { /* When truncate a part of the file, remove remaining clusters */ |
| ncl = get_cluster(fp->fs, fp->curr_clust); |
| if (ncl < 2) goto ft_error; |
| if (ncl < fp->fs->max_clust) { |
| if (!put_cluster(fp->fs, fp->curr_clust, 0x0FFFFFFF)) goto ft_error; |
| if (!remove_chain(fp->fs, ncl)) goto ft_error; |
| } |
| } |
| } |
| return FR_OK; |
| ft_error: /* Abort this file due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| return FR_RW_ERROR; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Get Number of Free Clusters */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_getfree ( |
| const char *drv, /* Pointer to the logical drive number (root dir) */ |
| DWORD *nclust, /* Pointer to the variable to return number of free clusters */ |
| FATFS **fatfs /* Pointer to pointer to corresponding file system object to return */ |
| ) |
| { |
| FRESULT res; |
| DWORD n, clust, sect; |
| BYTE fat, f, *p; |
| /* Get drive number */ |
| res = auto_mount(&drv, fatfs, 0); |
| if (res != FR_OK) return res; |
| /* If number of free cluster is valid, return it without cluster scan. */ |
| if ((*fatfs)->free_clust <= (*fatfs)->max_clust - 2) { |
| *nclust = (*fatfs)->free_clust; |
| return FR_OK; |
| } |
| /* Get number of free clusters */ |
| fat = (*fatfs)->fs_type; |
| n = 0; |
| if (fat == FS_FAT12) { |
| clust = 2; |
| do { |
| if ((WORD)get_cluster(*fatfs, clust) == 0) n++; |
| } while (++clust < (*fatfs)->max_clust); |
| } else { |
| clust = (*fatfs)->max_clust; |
| sect = (*fatfs)->fatbase; |
| f = 0; p = 0; |
| do { |
| if (!f) { |
| if (!move_window(*fatfs, sect++)) return FR_RW_ERROR; |
| p = (*fatfs)->win; |
| } |
| if (fat == FS_FAT16) { |
| if (LD_WORD(p) == 0) n++; |
| p += 2; f += 1; |
| } else { |
| if (LD_DWORD(p) == 0) n++; |
| p += 4; f += 2; |
| } |
| } while (--clust); |
| } |
| (*fatfs)->free_clust = n; |
| #if _USE_FSINFO |
| if (fat == FS_FAT32) (*fatfs)->fsi_flag = 1; |
| #endif |
| *nclust = n; |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Delete a File or Directory */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_unlink ( |
| const char *path /* Pointer to the file or directory path */ |
| ) |
| { |
| FRESULT res; |
| DIR dj; |
| BYTE *dir, *sdir; |
| DWORD dclust, dsect; |
| char fn[8+3+1]; |
| res = auto_mount(&path, &dj.fs, 1); |
| if (res != FR_OK) return res; |
| res = trace_path(&dj, fn, path, &dir); /* Trace the file path */ |
| if (res != FR_OK) return res; /* Trace failed */ |
| if (!dir) return FR_INVALID_NAME; /* It is the root directory */ |
| if (dir[DIR_Attr] & AM_RDO) return FR_DENIED; /* It is a R/O object */ |
| dsect = dj.fs->winsect; |
| dclust = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]); |
| if (dir[DIR_Attr] & AM_DIR) { /* It is a sub-directory */ |
| dj.clust = dclust; /* Check if the sub-dir is empty or not */ |
| dj.sect = clust2sect(dj.fs, dclust); |
| dj.index = 2; |
| do { |
| if (!move_window(dj.fs, dj.sect)) return FR_RW_ERROR; |
| sdir = &dj.fs->win[(dj.index & ((SS(dj.fs) - 1) >> 5)) * 32]; |
| if (sdir[DIR_Name] == 0) break; |
| if (sdir[DIR_Name] != 0xE5 && !(sdir[DIR_Attr] & AM_VOL)) |
| return FR_DENIED; /* The directory is not empty */ |
| } while (next_dir_entry(&dj)); |
| } |
| if (!move_window(dj.fs, dsect)) return FR_RW_ERROR; /* Mark the directory entry 'deleted' */ |
| dir[DIR_Name] = 0xE5; |
| dj.fs->winflag = 1; |
| if (!remove_chain(dj.fs, dclust)) return FR_RW_ERROR; /* Remove the cluster chain */ |
| return sync(dj.fs); |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Create a Directory */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_mkdir ( |
| const char *path /* Pointer to the directory path */ |
| ) |
| { |
| FRESULT res; |
| DIR dj; |
| BYTE *dir, *fw, n; |
| char fn[8+3+1]; |
| DWORD sect, dsect, dclust, pclust, tim; |
| res = auto_mount(&path, &dj.fs, 1); |
| if (res != FR_OK) return res; |
| res = trace_path(&dj, fn, path, &dir); /* Trace the file path */ |
| if (res == FR_OK) return FR_EXIST; /* Any file or directory is already existing */ |
| if (res != FR_NO_FILE) return res; |
| res = reserve_direntry(&dj, &dir); /* Reserve a directory entry */ |
| if (res != FR_OK) return res; |
| sect = dj.fs->winsect; |
| dclust = create_chain(dj.fs, 0); /* Allocate a cluster for new directory table */ |
| if (dclust == 1) return FR_RW_ERROR; |
| dsect = clust2sect(dj.fs, dclust); |
| if (!dsect) return FR_DENIED; |
| if (!move_window(dj.fs, dsect)) return FR_RW_ERROR; |
| fw = dj.fs->win; |
| memset(fw, 0, SS(dj.fs)); /* Clear the new directory table */ |
| for (n = 1; n < dj.fs->csize; n++) { |
| if (disk_write(dj.fs->drive, fw, ++dsect, 1) != RES_OK) |
| return FR_RW_ERROR; |
| } |
| memset(&fw[DIR_Name], ' ', 8+3); /* Create "." entry */ |
| fw[DIR_Name] = '.'; |
| fw[DIR_Attr] = AM_DIR; |
| tim = get_fattime(); |
| ST_DWORD(&fw[DIR_WrtTime], tim); |
| memcpy(&fw[32], &fw[0], 32); fw[33] = '.'; /* Create ".." entry */ |
| ST_WORD(&fw[ DIR_FstClusLO], dclust); |
| ST_WORD(&fw[ DIR_FstClusHI], dclust >> 16); |
| pclust = dj.sclust; |
| if (dj.fs->fs_type == FS_FAT32 && pclust == dj.fs->dirbase) pclust = 0; |
| ST_WORD(&fw[32+DIR_FstClusLO], pclust); |
| ST_WORD(&fw[32+DIR_FstClusHI], pclust >> 16); |
| dj.fs->winflag = 1; |
| if (!move_window(dj.fs, sect)) return FR_RW_ERROR; |
| memset(&dir[0], 0, 32); /* Initialize the new entry */ |
| memcpy(&dir[DIR_Name], fn, 8+3); /* Name */ |
| dir[DIR_NTres] = fn[11]; |
| dir[DIR_Attr] = AM_DIR; /* Attribute */ |
| ST_DWORD(&dir[DIR_WrtTime], tim); /* Crated time */ |
| ST_WORD(&dir[DIR_FstClusLO], dclust); /* Table start cluster */ |
| ST_WORD(&dir[DIR_FstClusHI], dclust >> 16); |
| return sync(dj.fs); |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Change File Attribute */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_chmod ( |
| const char *path, /* Pointer to the file path */ |
| BYTE value, /* Attribute bits */ |
| BYTE mask /* Attribute mask to change */ |
| ) |
| { |
| FRESULT res; |
| DIR dj; |
| BYTE *dir; |
| char fn[8+3+1]; |
| res = auto_mount(&path, &dj.fs, 1); |
| if (res == FR_OK) { |
| res = trace_path(&dj, fn, path, &dir); /* Trace the file path */ |
| if (res == FR_OK) { /* Trace completed */ |
| if (!dir) { |
| res = FR_INVALID_NAME; /* Root directory */ |
| } else { |
| mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */ |
| dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */ |
| res = sync(dj.fs); |
| } |
| } |
| } |
| return res; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Change Timestamp */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_utime ( |
| const char *path, /* Pointer to the file/directory name */ |
| const FILINFO *finfo /* Pointer to the timestamp to be set */ |
| ) |
| { |
| FRESULT res; |
| DIR dj; |
| BYTE *dir; |
| char fn[8+3+1]; |
| res = auto_mount(&path, &dj.fs, 1); |
| if (res == FR_OK) { |
| res = trace_path(&dj, fn, path, &dir); /* Trace the file path */ |
| if (res == FR_OK) { /* Trace completed */ |
| if (!dir) { |
| res = FR_INVALID_NAME; /* Root directory */ |
| } else { |
| ST_WORD(&dir[DIR_WrtTime], finfo->ftime); |
| ST_WORD(&dir[DIR_WrtDate], finfo->fdate); |
| res = sync(dj.fs); |
| } |
| } |
| } |
| return res; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Rename File/Directory */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_rename ( |
| const char *path_old, /* Pointer to the old name */ |
| const char *path_new /* Pointer to the new name */ |
| ) |
| { |
| FRESULT res; |
| DIR dj; |
| DWORD sect_old; |
| BYTE *dir_old, *dir_new, direntry[32-11]; |
| char fn[8+3+1]; |
| res = auto_mount(&path_old, &dj.fs, 1); |
| if (res != FR_OK) return res; |
| res = trace_path(&dj, fn, path_old, &dir_old); /* Check old object */ |
| if (res != FR_OK) return res; /* The old object is not found */ |
| if (!dir_old) return FR_NO_FILE; |
| sect_old = dj.fs->winsect; /* Save the object information */ |
| memcpy(direntry, &dir_old[DIR_Attr], 32-11); |
| res = trace_path(&dj, fn, path_new, &dir_new); /* Check new object */ |
| if (res == FR_OK) return FR_EXIST; /* The new object name is already existing */ |
| if (res != FR_NO_FILE) return res; /* Is there no old name? */ |
| res = reserve_direntry(&dj, &dir_new); /* Reserve a directory entry */ |
| if (res != FR_OK) return res; |
| memcpy(&dir_new[DIR_Attr], direntry, 32-11); /* Create new entry */ |
| memcpy(&dir_new[DIR_Name], fn, 8+3); |
| dir_new[DIR_NTres] = fn[11]; |
| dj.fs->winflag = 1; |
| if (!move_window(dj.fs, sect_old)) return FR_RW_ERROR; /* Delete old entry */ |
| dir_old[DIR_Name] = 0xE5; |
| return sync(dj.fs); |
| } |
| #endif /* !_FS_READONLY */ |
| #endif /* _FS_MINIMIZE == 0 */ |
| #endif /* _FS_MINIMIZE <= 1 */ |
| #endif /* _FS_MINIMIZE <= 2 */ |
| #if _USE_MKFS && !_FS_READONLY |
| /*-----------------------------------------------------------------------*/ |
| /* Create File System on the Drive */ |
| /*-----------------------------------------------------------------------*/ |
| #define N_ROOTDIR 512 /* Multiple of 32 and <= 2048 */ |
| #define N_FATS 1 /* 1 or 2 */ |
| #define MAX_SECTOR 64000000UL /* Maximum partition size */ |
| #define MIN_SECTOR 2000UL /* Minimum partition size */ |
| FRESULT f_mkfs ( |
| BYTE drv, /* Logical drive number */ |
| BYTE partition, /* Partitioning rule 0:FDISK, 1:SFD */ |
| WORD allocsize /* Allocation unit size [bytes] */ |
| ) |
| { |
| BYTE fmt, m, *tbl; |
| DWORD b_part, b_fat, b_dir, b_data; /* Area offset (LBA) */ |
| DWORD n_part, n_rsv, n_fat, n_dir; /* Area size */ |
| DWORD n_clust, n; |
| FATFS *fs; |
| DSTATUS stat; |
| /* Check validity of the parameters */ |
| if (drv >= _DRIVES) return FR_INVALID_DRIVE; |
| if (partition >= 2) return FR_MKFS_ABORTED; |
| for (n = 512; n <= 32768U && n != allocsize; n <<= 1); |
| if (n != allocsize) return FR_MKFS_ABORTED; |
| /* Check mounted drive and clear work area */ |
| fs = FatFs[drv]; |
| if (!fs) return FR_NOT_ENABLED; |
| fs->fs_type = 0; |
| drv = LD2PD(drv); |
| /* Get disk statics */ |
| stat = disk_initialize(drv); |
| if (stat & STA_NOINIT) return FR_NOT_READY; |
| if (stat & STA_PROTECT) return FR_WRITE_PROTECTED; |
| if (disk_ioctl(drv, GET_SECTOR_COUNT, &n_part) != RES_OK || n_part < MIN_SECTOR) |
| return FR_MKFS_ABORTED; |
| if (n_part > MAX_SECTOR) n_part = MAX_SECTOR; |
| b_part = (!partition) ? 63 : 0; /* Boot sector */ |
| n_part -= b_part; |
| #if S_MAX_SIZ > 512 /* Check disk sector size */ |
| if (disk_ioctl(drv, GET_SECTOR_SIZE, &SS(fs)) != RES_OK |
| || SS(fs) > S_MAX_SIZ |
| || SS(fs) > allocsize) |
| return FR_MKFS_ABORTED; |
| #endif |
| allocsize /= SS(fs); /* Number of sectors per cluster */ |
| /* Pre-compute number of clusters and FAT type */ |
| n_clust = n_part / allocsize; |
| fmt = FS_FAT12; |
| if (n_clust >= 0xFF5) fmt = FS_FAT16; |
| if (n_clust >= 0xFFF5) fmt = FS_FAT32; |
| /* Determine offset and size of FAT structure */ |
| switch (fmt) { |
| case FS_FAT12: |
| n_fat = ((n_clust * 3 + 1) / 2 + 3 + SS(fs) - 1) / SS(fs); |
| n_rsv = 1 + partition; |
| n_dir = N_ROOTDIR * 32 / SS(fs); |
| break; |
| case FS_FAT16: |
| n_fat = ((n_clust * 2) + 4 + SS(fs) - 1) / SS(fs); |
| n_rsv = 1 + partition; |
| n_dir = N_ROOTDIR * 32 / SS(fs); |
| break; |
| default: |
| n_fat = ((n_clust * 4) + 8 + SS(fs) - 1) / SS(fs); |
| n_rsv = 33 - partition; |
| n_dir = 0; |
| } |
| b_fat = b_part + n_rsv; /* FATs start sector */ |
| b_dir = b_fat + n_fat * N_FATS; /* Directory start sector */ |
| b_data = b_dir + n_dir; /* Data start sector */ |
| /* Align data start sector to erase block boundary (for flash memory media) */ |
| if (disk_ioctl(drv, GET_BLOCK_SIZE, &n) != RES_OK) return FR_MKFS_ABORTED; |
| n = (b_data + n - 1) & ~(n - 1); |
| n_fat += (n - b_data) / N_FATS; |
| /* b_dir and b_data are no longer used below */ |
| /* Determine number of cluster and final check of validity of the FAT type */ |
| n_clust = (n_part - n_rsv - n_fat * N_FATS - n_dir) / allocsize; |
| if ( (fmt == FS_FAT16 && n_clust < 0xFF5) |
| || (fmt == FS_FAT32 && n_clust < 0xFFF5)) |
| return FR_MKFS_ABORTED; |
| /* Create partition table if needed */ |
| if (!partition) { |
| DWORD n_disk = b_part + n_part; |
| tbl = &fs->win[MBR_Table]; |
| ST_DWORD(&tbl[0], 0x00010180); /* Partition start in CHS */ |
| if (n_disk < 63UL * 255 * 1024) { /* Partition end in CHS */ |
| n_disk = n_disk / 63 / 255; |
| tbl[7] = (BYTE)n_disk; |
| tbl[6] = (BYTE)((n_disk >> 2) | 63); |
| } else { |
| ST_WORD(&tbl[6], 0xFFFF); |
| } |
| tbl[5] = 254; |
| if (fmt != FS_FAT32) /* System ID */ |
| tbl[4] = (n_part < 0x10000) ? 0x04 : 0x06; |
| else |
| tbl[4] = 0x0c; |
| ST_DWORD(&tbl[8], 63); /* Partition start in LBA */ |
| ST_DWORD(&tbl[12], n_part); /* Partition size in LBA */ |
| ST_WORD(&tbl[64], 0xAA55); /* Signature */ |
| if (disk_write(drv, fs->win, 0, 1) != RES_OK) |
| return FR_RW_ERROR; |
| } |
| /* Create boot record */ |
| tbl = fs->win; /* Clear buffer */ |
| memset(tbl, 0, SS(fs)); |
| ST_DWORD(&tbl[BS_jmpBoot], 0x90FEEB); /* Boot code (jmp $, nop) */ |
| ST_WORD(&tbl[BPB_BytsPerSec], SS(fs)); /* Sector size */ |
| tbl[BPB_SecPerClus] = (BYTE)allocsize; /* Sectors per cluster */ |
| ST_WORD(&tbl[BPB_RsvdSecCnt], n_rsv); /* Reserved sectors */ |
| tbl[BPB_NumFATs] = N_FATS; /* Number of FATs */ |
| ST_WORD(&tbl[BPB_RootEntCnt], SS(fs) / 32 * n_dir); /* Number of rootdir entries */ |
| if (n_part < 0x10000) { /* Number of total sectors */ |
| ST_WORD(&tbl[BPB_TotSec16], n_part); |
| } else { |
| ST_DWORD(&tbl[BPB_TotSec32], n_part); |
| } |
| tbl[BPB_Media] = 0xF8; /* Media descripter */ |
| ST_WORD(&tbl[BPB_SecPerTrk], 63); /* Number of sectors per track */ |
| ST_WORD(&tbl[BPB_NumHeads], 255); /* Number of heads */ |
| ST_DWORD(&tbl[BPB_HiddSec], b_part); /* Hidden sectors */ |
| n = get_fattime(); /* Use current time as a VSN */ |
| if (fmt != FS_FAT32) { |
| ST_DWORD(&tbl[BS_VolID], n); /* Volume serial number */ |
| ST_WORD(&tbl[BPB_FATSz16], n_fat); /* Number of secters per FAT */ |
| tbl[BS_DrvNum] = 0x80; /* Drive number */ |
| tbl[BS_BootSig] = 0x29; /* Extended boot signature */ |
| memcpy(&tbl[BS_VolLab], "NO NAME FAT ", 19); /* Volume lavel, FAT signature */ |
| } else { |
| ST_DWORD(&tbl[BS_VolID32], n); /* Volume serial number */ |
| ST_DWORD(&tbl[BPB_FATSz32], n_fat); /* Number of secters per FAT */ |
| ST_DWORD(&tbl[BPB_RootClus], 2); /* Root directory cluster (2) */ |
| ST_WORD(&tbl[BPB_FSInfo], 1); /* FSInfo record (bs+1) */ |
| ST_WORD(&tbl[BPB_BkBootSec], 6); /* Backup boot record (bs+6) */ |
| tbl[BS_DrvNum32] = 0x80; /* Drive number */ |
| tbl[BS_BootSig32] = 0x29; /* Extended boot signature */ |
| memcpy(&tbl[BS_VolLab32], "NO NAME FAT32 ", 19); /* Volume lavel, FAT signature */ |
| } |
| ST_WORD(&tbl[BS_55AA], 0xAA55); /* Signature */ |
| if (disk_write(drv, tbl, b_part+0, 1) != RES_OK) |
| return FR_RW_ERROR; |
| if (fmt == FS_FAT32) |
| disk_write(drv, tbl, b_part+6, 1); |
| /* Initialize FAT area */ |
| for (m = 0; m < N_FATS; m++) { |
| memset(tbl, 0, SS(fs)); /* 1st sector of the FAT */ |
| if (fmt != FS_FAT32) { |
| n = (fmt == FS_FAT12) ? 0x00FFFFF8 : 0xFFFFFFF8; |
| ST_DWORD(&tbl[0], n); /* Reserve cluster #0-1 (FAT12/16) */ |
| } else { |
| ST_DWORD(&tbl[0], 0xFFFFFFF8); /* Reserve cluster #0-1 (FAT32) */ |
| ST_DWORD(&tbl[4], 0xFFFFFFFF); |
| ST_DWORD(&tbl[8], 0x0FFFFFFF); /* Reserve cluster #2 for root dir */ |
| } |
| if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) |
| return FR_RW_ERROR; |
| memset(tbl, 0, SS(fs)); /* Following FAT entries are filled by zero */ |
| for (n = 1; n < n_fat; n++) { |
| if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) |
| return FR_RW_ERROR; |
| } |
| } |
| /* Initialize Root directory */ |
| m = (BYTE)((fmt == FS_FAT32) ? allocsize : n_dir); |
| do { |
| if (disk_write(drv, tbl, b_fat++, 1) != RES_OK) |
| return FR_RW_ERROR; |
| } while (--m); |
| /* Create FSInfo record if needed */ |
| if (fmt == FS_FAT32) { |
| ST_WORD(&tbl[BS_55AA], 0xAA55); |
| ST_DWORD(&tbl[FSI_LeadSig], 0x41615252); |
| ST_DWORD(&tbl[FSI_StrucSig], 0x61417272); |
| ST_DWORD(&tbl[FSI_Free_Count], n_clust - 1); |
| ST_DWORD(&tbl[FSI_Nxt_Free], 0xFFFFFFFF); |
| disk_write(drv, tbl, b_part+1, 1); |
| disk_write(drv, tbl, b_part+7, 1); |
| } |
| return (disk_ioctl(drv, CTRL_SYNC, NULL) == RES_OK) ? FR_OK : FR_RW_ERROR; |
| } |
| #endif /* _USE_MKFS && !_FS_READONLY */ |
| #if _USE_STRFUNC >= 1 |
| /*-----------------------------------------------------------------------*/ |
| /* Get a string from the file */ |
| /*-----------------------------------------------------------------------*/ |
| char* fgets ( |
| char* buff, /* Pointer to the string buffer to read */ |
| int len, /* Size of string buffer */ |
| FIL* fil /* Pointer to the file object */ |
| ) |
| { |
| int i = 0; |
| char *p = buff; |
| UINT rc; |
| while (i < len - 1) { /* Read bytes until buffer gets filled */ |
| f_read(fil, p, 1, &rc); |
| if (rc != 1) break; /* Break when no data to read */ |
| #if _USE_STRFUNC >= 2 |
| if (*p == '\r') continue; /* Strip '\r' */ |
| #endif |
| i++; |
| if (*p++ == '\n') break; /* Break when reached end of line */ |
| } |
| *p = 0; |
| return i ? buff : 0; /* When no data read (eof or error), return with error. */ |
| } |
| #if !_FS_READONLY |
| #include <stdarg.h> |
| /*-----------------------------------------------------------------------*/ |
| /* Put a character to the file */ |
| /*-----------------------------------------------------------------------*/ |
| int fputc ( |
| int chr, /* A character to be output */ |
| FIL* fil /* Ponter to the file object */ |
| ) |
| { |
| UINT bw; |
| char c; |
| #if _USE_STRFUNC >= 2 |
| if (chr == '\n') fputc ('\r', fil); /* LF -> CRLF conversion */ |
| #endif |
| if (!fil) { /* Special value may be used to switch the destination to any other device */ |
| /* put_console(chr); */ |
| return chr; |
| } |
| c = (char)chr; |
| f_write(fil, &c, 1, &bw); /* Write a byte to the file */ |
| return bw ? chr : EOF; /* Return the resulut */ |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Put a string to the file */ |
| /*-----------------------------------------------------------------------*/ |
| int fputs ( |
| const char* str, /* Pointer to the string to be output */ |
| FIL* fil /* Pointer to the file object */ |
| ) |
| { |
| int n; |
| for (n = 0; *str; str++, n++) { |
| if (fputc(*str, fil) == EOF) return EOF; |
| } |
| return n; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Put a formatted string to the file */ |
| /*-----------------------------------------------------------------------*/ |
| int fprintf ( |
| FIL* fil, /* Pointer to the file object */ |
| const char* str, /* Pointer to the format string */ |
| ... /* Optional arguments... */ |
| ) |
| { |
| va_list arp; |
| UCHAR c, f, r; |
| ULONG val; |
| char s[16]; |
| int i, w, res, cc; |
| va_start(arp, str); |
| for (cc = res = 0; cc != EOF; res += cc) { |
| c = *str++; |
| if (c == 0) break; /* End of string */ |
| if (c != '%') { /* Non escape cahracter */ |
| cc = fputc(c, fil); |
| if (cc != EOF) cc = 1; |
| continue; |
| } |
| w = f = 0; |
| c = *str++; |
| if (c == '0') { /* Flag: '0' padding */ |
| f = 1; c = *str++; |
| } |
| while (c >= '0' && c <= '9') { /* Precision */ |
| w = w * 10 + (c - '0'); |
| c = *str++; |
| } |
| if (c == 'l') { /* Prefix: Size is long int */ |
| f |= 2; c = *str++; |
| } |
| if (c == 's') { /* Type is string */ |
| cc = fputs(va_arg(arp, char*), fil); |
| continue; |
| } |
| if (c == 'c') { /* Type is character */ |
| cc = fputc(va_arg(arp, char), fil); |
| if (cc != EOF) cc = 1; |
| continue; |
| } |
| r = 0; |
| if (c == 'd') r = 10; /* Type is signed decimal */ |
| if (c == 'u') r = 10; /* Type is unsigned decimal */ |
| if (c == 'X') r = 16; /* Type is unsigned hexdecimal */ |
| if (r == 0) break; /* Unknown type */ |
| if (f & 2) { /* Get the value */ |
| val = (ULONG)va_arg(arp, long); |
| } else { |
| val = (c == 'd') ? (ULONG)(long)va_arg(arp, int) : (ULONG)va_arg(arp, unsigned int); |
| } |
| /* Put numeral string */ |
| if (c == 'd') { |
| if (val >= 0x80000000) { |
| val = 0 - val; |
| f |= 4; |
| } |
| } |
| i = sizeof(s) - 1; s[i] = 0; |
| do { |
| c = (UCHAR)(val % r + '0'); |
| if (c > '9') c += 7; |
| s[--i] = c; |
| val /= r; |
| } while (i && val); |
| if (i && (f & 4)) s[--i] = '-'; |
| w = sizeof(s) - 1 - w; |
| while (i && i > w) s[--i] = (f & 1) ? '0' : ' '; |
| cc = fputs(&s[i], fil); |
| } |
| va_end(arp); |
| return (cc == EOF) ? cc : res; |
| } |
| #endif /* !_FS_READONLY */ |
| #endif /* _USE_STRFUNC >= 1*/ |
| /Designs/GPSRL03A/ff.h |
|---|
| 0,0 → 1,339 |
| /*--------------------------------------------------------------------------/ |
| / FatFs - FAT file system module include file R0.06 (C)ChaN, 2008 |
| /---------------------------------------------------------------------------/ |
| / FatFs module is an experimenal project to implement FAT file system to |
| / cheap microcontrollers. This is a free software and is opened for education, |
| / research and development under license policy of following trems. |
| / |
| / Copyright (C) 2008, ChaN, all right reserved. |
| / |
| / * The FatFs module is a free software and there is no warranty. |
| / * You can use, modify and/or redistribute it for personal, non-profit or |
| / commercial use without any restriction under your responsibility. |
| / * Redistributions of source code must retain the above copyright notice. |
| / |
| /---------------------------------------------------------------------------*/ |
| #ifndef _FATFS |
| #define _MCU_ENDIAN 0 |
| /* The _MCU_ENDIAN defines which access method is used to the FAT structure. |
| / 1: Enable word access. |
| / 2: Disable word access and use byte-by-byte access instead. |
| / When the architectural byte order of the MCU is big-endian and/or address |
| / miss-aligned access results incorrect behavior, the _MCU_ENDIAN must be set to 2. |
| / If it is not the case, it can also be set to 1 for good code efficiency. */ |
| #define _FS_READONLY 0 |
| /* Setting _FS_READONLY to 1 defines read only configuration. This removes |
| / writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename, |
| / f_truncate and useless f_getfree. */ |
| #define _FS_MINIMIZE 0 |
| /* The _FS_MINIMIZE option defines minimization level to remove some functions. |
| / 0: Full function. |
| / 1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod, f_truncate and f_rename are removed. |
| / 2: f_opendir and f_readdir are removed in addition to level 1. |
| / 3: f_lseek is removed in addition to level 2. */ |
| #define _USE_STRFUNC 0 |
| /* To enable string functions, set _USE_STRFUNC to 1 or 2. */ |
| #define _USE_MKFS 0 |
| /* When _USE_MKFS is set to 1 and _FS_READONLY is set to 0, f_mkfs function is |
| / enabled. */ |
| #define _DRIVES 2 |
| /* Number of logical drives to be used. This affects the size of internal table. */ |
| #define _MULTI_PARTITION 0 |
| /* When _MULTI_PARTITION is set to 0, each logical drive is bound to same |
| / physical drive number and can mount only 1st primaly partition. When it is |
| / set to 1, each logical drive can mount a partition listed in Drives[]. */ |
| #define _USE_FSINFO 0 |
| /* To enable FSInfo support on FAT32 volume, set _USE_FSINFO to 1. */ |
| #define _USE_SJIS 1 |
| /* When _USE_SJIS is set to 1, Shift-JIS code transparency is enabled, otherwise |
| / only US-ASCII(7bit) code can be accepted as file/directory name. */ |
| #define _USE_NTFLAG 1 |
| /* When _USE_NTFLAG is set to 1, upper/lower case of the file name is preserved. |
| / Note that the files are always accessed in case insensitive. */ |
| #include "integer.h" |
| /* Definitions corresponds to multiple sector size (not tested) */ |
| #define S_MAX_SIZ 512U /* Do not change */ |
| #if S_MAX_SIZ > 512U |
| #define SS(fs) ((fs)->s_size) |
| #else |
| #define SS(fs) 512U |
| #endif |
| /* File system object structure */ |
| typedef struct _FATFS { |
| WORD id; /* File system mount ID */ |
| WORD n_rootdir; /* Number of root directory entries */ |
| DWORD winsect; /* Current sector appearing in the win[] */ |
| DWORD sects_fat; /* Sectors per fat */ |
| DWORD max_clust; /* Maximum cluster# + 1 */ |
| DWORD fatbase; /* FAT start sector */ |
| DWORD dirbase; /* Root directory start sector (cluster# for FAT32) */ |
| DWORD database; /* Data start sector */ |
| #if !_FS_READONLY |
| DWORD last_clust; /* Last allocated cluster */ |
| DWORD free_clust; /* Number of free clusters */ |
| #if _USE_FSINFO |
| DWORD fsi_sector; /* fsinfo sector */ |
| BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */ |
| BYTE pad2; |
| #endif |
| #endif |
| BYTE fs_type; /* FAT sub type */ |
| BYTE csize; /* Number of sectors per cluster */ |
| #if S_MAX_SIZ > 512U |
| WORD s_size; /* Sector size */ |
| #endif |
| BYTE n_fats; /* Number of FAT copies */ |
| BYTE drive; /* Physical drive number */ |
| BYTE winflag; /* win[] dirty flag (1:must be written back) */ |
| BYTE pad1; |
| BYTE win[S_MAX_SIZ]; /* Disk access window for Directory/FAT */ |
| } FATFS; |
| /* Directory object structure */ |
| typedef struct _DIR { |
| WORD id; /* Owner file system mount ID */ |
| WORD index; /* Current index */ |
| FATFS* fs; /* Pointer to the owner file system object */ |
| DWORD sclust; /* Start cluster */ |
| DWORD clust; /* Current cluster */ |
| DWORD sect; /* Current sector */ |
| } DIR; |
| /* File object structure */ |
| typedef struct _FIL { |
| WORD id; /* Owner file system mount ID */ |
| BYTE flag; /* File status flags */ |
| BYTE csect; /* Sector address in the cluster */ |
| FATFS* fs; /* Pointer to the owner file system object */ |
| DWORD fptr; /* File R/W pointer */ |
| DWORD fsize; /* File size */ |
| DWORD org_clust; /* File start cluster */ |
| DWORD curr_clust; /* Current cluster */ |
| DWORD curr_sect; /* Current sector */ |
| #if _FS_READONLY == 0 |
| DWORD dir_sect; /* Sector containing the directory entry */ |
| BYTE* dir_ptr; /* Ponter to the directory entry in the window */ |
| #endif |
| BYTE buffer[S_MAX_SIZ]; /* File R/W buffer */ |
| } FIL; |
| /* File status structure */ |
| typedef struct _FILINFO { |
| DWORD fsize; /* Size */ |
| WORD fdate; /* Date */ |
| WORD ftime; /* Time */ |
| BYTE fattrib; /* Attribute */ |
| char fname[8+1+3+1]; /* Name (8.3 format) */ |
| } FILINFO; |
| /* Definitions corresponds to multi partition */ |
| #if _MULTI_PARTITION != 0 /* Multiple partition cfg */ |
| typedef struct _PARTITION { |
| BYTE pd; /* Physical drive # (0-255) */ |
| BYTE pt; /* Partition # (0-3) */ |
| } PARTITION; |
| extern |
| const PARTITION Drives[]; /* Logical drive# to physical location conversion table */ |
| #define LD2PD(drv) (Drives[drv].pd) /* Get physical drive# */ |
| #define LD2PT(drv) (Drives[drv].pt) /* Get partition# */ |
| #else /* Single partition cfg */ |
| #define LD2PD(drv) (drv) /* Physical drive# is equal to logical drive# */ |
| #define LD2PT(drv) 0 /* Always mounts the 1st partition */ |
| #endif |
| /* File function return code (FRESULT) */ |
| typedef enum { |
| FR_OK = 0, /* 0 */ |
| FR_NOT_READY, /* 1 */ |
| FR_NO_FILE, /* 2 */ |
| FR_NO_PATH, /* 3 */ |
| FR_INVALID_NAME, /* 4 */ |
| FR_INVALID_DRIVE, /* 5 */ |
| FR_DENIED, /* 6 */ |
| FR_EXIST, /* 7 */ |
| FR_RW_ERROR, /* 8 */ |
| FR_WRITE_PROTECTED, /* 9 */ |
| FR_NOT_ENABLED, /* 10 */ |
| FR_NO_FILESYSTEM, /* 11 */ |
| FR_INVALID_OBJECT, /* 12 */ |
| FR_MKFS_ABORTED /* 13 */ |
| } FRESULT; |
| /*-----------------------------------------------------*/ |
| /* FatFs module application interface */ |
| FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */ |
| FRESULT f_open (FIL*, const char*, BYTE); /* Open or create a file */ |
| FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from a file */ |
| FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */ |
| FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */ |
| FRESULT f_close (FIL*); /* Close an open file object */ |
| FRESULT f_opendir (DIR*, const char*); /* Open an existing directory */ |
| FRESULT f_readdir (DIR*, FILINFO*); /* Read a directory item */ |
| FRESULT f_stat (const char*, FILINFO*); /* Get file status */ |
| FRESULT f_getfree (const char*, DWORD*, FATFS**); /* Get number of free clusters on the drive */ |
| FRESULT f_truncate (FIL*); /* Truncate file */ |
| FRESULT f_sync (FIL*); /* Flush cached data of a writing file */ |
| FRESULT f_unlink (const char*); /* Delete an existing file or directory */ |
| FRESULT f_mkdir (const char*); /* Create a new directory */ |
| FRESULT f_chmod (const char*, BYTE, BYTE); /* Change file/dir attriburte */ |
| FRESULT f_utime (const char*, const FILINFO*); /* Change file/dir timestamp */ |
| FRESULT f_rename (const char*, const char*); /* Rename/Move a file or directory */ |
| FRESULT f_mkfs (BYTE, BYTE, WORD); /* Create a file system on the drive */ |
| #if _USE_STRFUNC |
| #define feof(fp) ((fp)->fptr == (fp)->fsize) |
| #define EOF -1 |
| int fputc (int, FIL*); /* Put a character to the file */ |
| int fputs (const char*, FIL*); /* Put a string to the file */ |
| int fprintf (FIL*, const char*, ...); /* Put a formatted string to the file */ |
| char* fgets (char*, int, FIL*); /* Get a string from the file */ |
| #endif |
| /* User defined function to give a current time to fatfs module */ |
| DWORD get_fattime (void); /* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */ |
| /* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */ |
| /* File access control and file status flags (FIL.flag) */ |
| #define FA_READ 0x01 |
| #define FA_OPEN_EXISTING 0x00 |
| #if _FS_READONLY == 0 |
| #define FA_WRITE 0x02 |
| #define FA_CREATE_NEW 0x04 |
| #define FA_CREATE_ALWAYS 0x08 |
| #define FA_OPEN_ALWAYS 0x10 |
| #define FA__WRITTEN 0x20 |
| #define FA__DIRTY 0x40 |
| #endif |
| #define FA__ERROR 0x80 |
| /* FAT sub type (FATFS.fs_type) */ |
| #define FS_FAT12 1 |
| #define FS_FAT16 2 |
| #define FS_FAT32 3 |
| /* File attribute bits for directory entry */ |
| #define AM_RDO 0x01 /* Read only */ |
| #define AM_HID 0x02 /* Hidden */ |
| #define AM_SYS 0x04 /* System */ |
| #define AM_VOL 0x08 /* Volume label */ |
| #define AM_LFN 0x0F /* LFN entry */ |
| #define AM_DIR 0x10 /* Directory */ |
| #define AM_ARC 0x20 /* Archive */ |
| /* Offset of FAT structure members */ |
| #define BS_jmpBoot 0 |
| #define BS_OEMName 3 |
| #define BPB_BytsPerSec 11 |
| #define BPB_SecPerClus 13 |
| #define BPB_RsvdSecCnt 14 |
| #define BPB_NumFATs 16 |
| #define BPB_RootEntCnt 17 |
| #define BPB_TotSec16 19 |
| #define BPB_Media 21 |
| #define BPB_FATSz16 22 |
| #define BPB_SecPerTrk 24 |
| #define BPB_NumHeads 26 |
| #define BPB_HiddSec 28 |
| #define BPB_TotSec32 32 |
| #define BS_55AA 510 |
| #define BS_DrvNum 36 |
| #define BS_BootSig 38 |
| #define BS_VolID 39 |
| #define BS_VolLab 43 |
| #define BS_FilSysType 54 |
| #define BPB_FATSz32 36 |
| #define BPB_ExtFlags 40 |
| #define BPB_FSVer 42 |
| #define BPB_RootClus 44 |
| #define BPB_FSInfo 48 |
| #define BPB_BkBootSec 50 |
| #define BS_DrvNum32 64 |
| #define BS_BootSig32 66 |
| #define BS_VolID32 67 |
| #define BS_VolLab32 71 |
| #define BS_FilSysType32 82 |
| #define FSI_LeadSig 0 |
| #define FSI_StrucSig 484 |
| #define FSI_Free_Count 488 |
| #define FSI_Nxt_Free 492 |
| #define MBR_Table 446 |
| #define DIR_Name 0 |
| #define DIR_Attr 11 |
| #define DIR_NTres 12 |
| #define DIR_CrtTime 14 |
| #define DIR_CrtDate 16 |
| #define DIR_FstClusHI 20 |
| #define DIR_WrtTime 22 |
| #define DIR_WrtDate 24 |
| #define DIR_FstClusLO 26 |
| #define DIR_FileSize 28 |
| /* Multi-byte word access macros */ |
| #if _MCU_ENDIAN == 1 /* Use word access */ |
| #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr)) |
| #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr)) |
| #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val) |
| #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val) |
| #elif _MCU_ENDIAN == 2 /* Use byte-by-byte access */ |
| #define LD_WORD(ptr) (WORD)(((WORD)*(volatile BYTE*)((ptr)+1)<<8)|(WORD)*(volatile BYTE*)(ptr)) |
| #define LD_DWORD(ptr) (DWORD)(((DWORD)*(volatile BYTE*)((ptr)+3)<<24)|((DWORD)*(volatile BYTE*)((ptr)+2)<<16)|((WORD)*(volatile BYTE*)((ptr)+1)<<8)|*(volatile BYTE*)(ptr)) |
| #define ST_WORD(ptr,val) *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8) |
| #define ST_DWORD(ptr,val) *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(volatile BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(volatile BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24) |
| #else |
| #error Do not forget to set _MCU_ENDIAN properly! |
| #endif |
| #define _FATFS |
| #endif /* _FATFS */ |
| /Designs/GPSRL03A/glg.elf |
|---|
| Cannot display: file marked as a binary type. |
| svn:mime-type = application/octet-stream |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| Added: svn:mime-type |
| +application/octet-stream |
| \ No newline at end of property |
| /Designs/GPSRL03A/glg.hex |
|---|
| 0,0 → 1,561 |
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| :00000001FF |
| /Designs/GPSRL03A/glg.lst |
|---|
| 0,0 → 1,6162 |
| glg.elf: file format elf32-avr |
| Sections: |
| Idx Name Size VMA LMA File off Algn |
| 0 .data 00000006 00800100 000022ec 00002360 2**0 |
| CONTENTS, ALLOC, LOAD, DATA |
| 1 .text 000022ec 00000000 00000000 00000074 2**1 |
| CONTENTS, ALLOC, LOAD, READONLY, CODE |
| 2 .bss 00000341 00800106 000022f2 00002366 2**0 |
| ALLOC |
| 3 .stab 0000087c 00000000 00000000 00002368 2**2 |
| CONTENTS, READONLY, DEBUGGING |
| 4 .stabstr 0000019e 00000000 00000000 00002be4 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 5 .debug_aranges 00000060 00000000 00000000 00002d82 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 6 .debug_pubnames 0000019e 00000000 00000000 00002de2 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 7 .debug_info 00001cfd 00000000 00000000 00002f80 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 8 .debug_abbrev 000007a6 00000000 00000000 00004c7d 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 9 .debug_line 000019a4 00000000 00000000 00005423 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 10 .debug_frame 00000260 00000000 00000000 00006dc8 2**2 |
| CONTENTS, READONLY, DEBUGGING |
| 11 .debug_str 000005e8 00000000 00000000 00007028 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 12 .debug_loc 000020ca 00000000 00000000 00007610 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| 13 .debug_ranges 00000178 00000000 00000000 000096da 2**0 |
| CONTENTS, READONLY, DEBUGGING |
| Disassembly of section .text: |
| 00000000 <__vectors>: |
| 0: 0c 94 4c 00 jmp 0x98 ; 0x98 <__ctors_end> |
| 4: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 8: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| c: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 10: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 14: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 18: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 1c: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 20: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 24: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 28: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 2c: 0c 94 7a 01 jmp 0x2f4 ; 0x2f4 <__vector_11> |
| 30: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 34: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 38: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 3c: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 40: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 44: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 48: 0c 94 d6 00 jmp 0x1ac ; 0x1ac <__vector_18> |
| 4c: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 50: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 54: 0c 94 6b 00 jmp 0xd6 ; 0xd6 <__vector_21> |
| 58: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 5c: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 60: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 64: 0c 94 69 00 jmp 0xd2 ; 0xd2 <__bad_interrupt> |
| 00000068 <__c.2081>: |
| 68: 0d 0a 00 ... |
| 0000006b <__c.2079>: |
| 6b: 2c 00 ,. |
| 0000006d <__c.2075>: |
| 6d: 24 47 50 52 4d 43 00 $GPRMC. |
| 00000074 <__c.2073>: |
| 74: 24 47 50 47 47 41 00 $GPGGA. |
| 0000007b <__c.2071>: |
| 7b: 2e 6c 6f 67 00 .log. |
| 00000080 <__c.2065>: |
| 80: 24 47 50 52 4d 43 00 $GPRMC. |
| 00000087 <__c.2014>: |
| 87: 24 50 53 52 46 31 30 36 2c 32 31 2a 30 46 0d 0a $PSRF106,21*0F.. |
| ... |
| 00000098 <__ctors_end>: |
| 98: 11 24 eor r1, r1 |
| 9a: 1f be out 0x3f, r1 ; 63 |
| 9c: cf ef ldi r28, 0xFF ; 255 |
| 9e: d4 e0 ldi r29, 0x04 ; 4 |
| a0: de bf out 0x3e, r29 ; 62 |
| a2: cd bf out 0x3d, r28 ; 61 |
| 000000a4 <__do_copy_data>: |
| a4: 11 e0 ldi r17, 0x01 ; 1 |
| a6: a0 e0 ldi r26, 0x00 ; 0 |
| a8: b1 e0 ldi r27, 0x01 ; 1 |
| aa: ec ee ldi r30, 0xEC ; 236 |
| ac: f2 e2 ldi r31, 0x22 ; 34 |
| ae: 02 c0 rjmp .+4 ; 0xb4 <.do_copy_data_start> |
| 000000b0 <.do_copy_data_loop>: |
| b0: 05 90 lpm r0, Z+ |
| b2: 0d 92 st X+, r0 |
| 000000b4 <.do_copy_data_start>: |
| b4: a6 30 cpi r26, 0x06 ; 6 |
| b6: b1 07 cpc r27, r17 |
| b8: d9 f7 brne .-10 ; 0xb0 <.do_copy_data_loop> |
| 000000ba <__do_clear_bss>: |
| ba: 14 e0 ldi r17, 0x04 ; 4 |
| bc: a6 e0 ldi r26, 0x06 ; 6 |
| be: b1 e0 ldi r27, 0x01 ; 1 |
| c0: 01 c0 rjmp .+2 ; 0xc4 <.do_clear_bss_start> |
| 000000c2 <.do_clear_bss_loop>: |
| c2: 1d 92 st X+, r1 |
| 000000c4 <.do_clear_bss_start>: |
| c4: a7 34 cpi r26, 0x47 ; 71 |
| c6: b1 07 cpc r27, r17 |
| c8: e1 f7 brne .-8 ; 0xc2 <.do_clear_bss_loop> |
| ca: 0e 94 ba 01 call 0x374 ; 0x374 <main> |
| ce: 0c 94 75 11 jmp 0x22ea ; 0x22ea <_exit> |
| 000000d2 <__bad_interrupt>: |
| d2: 0c 94 00 00 jmp 0 ; 0x0 <__heap_end> |
| 000000d6 <__vector_21>: |
| /*---------------------------------------------------------*/ |
| /* ADC interrupt */ |
| /*---------------------------------------------------------*/ |
| ISR(ADC_vect) |
| { |
| d6: 1f 92 push r1 |
| d8: 0f 92 push r0 |
| da: 0f b6 in r0, 0x3f ; 63 |
| dc: 0f 92 push r0 |
| de: 11 24 eor r1, r1 |
| e0: 2f 93 push r18 |
| e2: 3f 93 push r19 |
| e4: 8f 93 push r24 |
| WORD n; |
| static BYTE l, h; |
| n = ADC; |
| e6: 20 91 78 00 lds r18, 0x0078 |
| ea: 30 91 79 00 lds r19, 0x0079 |
| if(ADMUX == POWER_check) |
| ee: 80 91 7c 00 lds r24, 0x007C |
| { |
| if (n < VTH_LOW) { |
| f2: 20 3d cpi r18, 0xD0 ; 208 |
| f4: 31 05 cpc r19, r1 |
| f6: 70 f4 brcc .+28 ; 0x114 <__vector_21+0x3e> |
| if (l >= 15) { |
| f8: 80 91 09 01 lds r24, 0x0109 |
| fc: 8f 30 cpi r24, 0x0F ; 15 |
| fe: 30 f0 brcs .+12 ; 0x10c <__vector_21+0x36> |
| Stat |= 0x01; |
| 100: 80 91 69 01 lds r24, 0x0169 |
| 104: 81 60 ori r24, 0x01 ; 1 |
| 106: 80 93 69 01 sts 0x0169, r24 |
| 10a: 06 c0 rjmp .+12 ; 0x118 <__vector_21+0x42> |
| } |
| else {l++;} |
| 10c: 8f 5f subi r24, 0xFF ; 255 |
| 10e: 80 93 09 01 sts 0x0109, r24 |
| 112: 02 c0 rjmp .+4 ; 0x118 <__vector_21+0x42> |
| } |
| else {l = 0;} |
| 114: 10 92 09 01 sts 0x0109, r1 |
| if (n > VTH_HIGH) { |
| 118: 81 e0 ldi r24, 0x01 ; 1 |
| 11a: 2c 32 cpi r18, 0x2C ; 44 |
| 11c: 38 07 cpc r19, r24 |
| 11e: 70 f0 brcs .+28 ; 0x13c <__vector_21+0x66> |
| if (h >= 15) { |
| 120: 80 91 08 01 lds r24, 0x0108 |
| 124: 8f 30 cpi r24, 0x0F ; 15 |
| 126: 30 f0 brcs .+12 ; 0x134 <__vector_21+0x5e> |
| Stat &= 0xFE; |
| 128: 80 91 69 01 lds r24, 0x0169 |
| 12c: 8e 7f andi r24, 0xFE ; 254 |
| 12e: 80 93 69 01 sts 0x0169, r24 |
| 132: 06 c0 rjmp .+12 ; 0x140 <__vector_21+0x6a> |
| } |
| else {h++;} |
| 134: 8f 5f subi r24, 0xFF ; 255 |
| 136: 80 93 08 01 sts 0x0108, r24 |
| 13a: 02 c0 rjmp .+4 ; 0x140 <__vector_21+0x6a> |
| } |
| else {h = 0;} |
| 13c: 10 92 08 01 sts 0x0108, r1 |
| battery = n; |
| 140: 30 93 6f 01 sts 0x016F, r19 |
| 144: 20 93 6e 01 sts 0x016E, r18 |
| ADMUX = ANALOG_IN1; |
| 148: 82 e4 ldi r24, 0x42 ; 66 |
| 14a: 80 93 7c 00 sts 0x007C, r24 |
| } |
| if(ADMUX == ANALOG_IN1) |
| 14e: 80 91 7c 00 lds r24, 0x007C |
| { |
| intensity = n; |
| 152: 30 93 0a 02 sts 0x020A, r19 |
| 156: 20 93 09 02 sts 0x0209, r18 |
| ADMUX = POWER_check; |
| 15a: 81 e4 ldi r24, 0x41 ; 65 |
| 15c: 80 93 7c 00 sts 0x007C, r24 |
| } |
| //!!!! |
| //Stat &= 0xFE; |
| ADCSRA = _BV(ADEN)|_BV(ADSC)|_BV(ADIF)|_BV(ADIE)|0b111; |
| 160: 8f ed ldi r24, 0xDF ; 223 |
| 162: 80 93 7a 00 sts 0x007A, r24 |
| 166: 8f 91 pop r24 |
| 168: 3f 91 pop r19 |
| 16a: 2f 91 pop r18 |
| 16c: 0f 90 pop r0 |
| 16e: 0f be out 0x3f, r0 ; 63 |
| 170: 0f 90 pop r0 |
| 172: 1f 90 pop r1 |
| 174: 18 95 reti |
| 00000176 <get_fattime>: |
| /* FatFs module. Any valid time must be returned even if */ |
| /* the system does not support a real time clock. */ |
| DWORD get_fattime () |
| { |
| 176: 60 e0 ldi r22, 0x00 ; 0 |
| 178: 70 e0 ldi r23, 0x00 ; 0 |
| 17a: 81 ea ldi r24, 0xA1 ; 161 |
| 17c: 96 e3 ldi r25, 0x36 ; 54 |
| 17e: 08 95 ret |
| 00000180 <uart_init>: |
| /* UART control */ |
| static |
| void uart_init (void) |
| { |
| 180: f8 94 cli |
| cli(); |
| UCSR0B = 0; |
| 182: e1 ec ldi r30, 0xC1 ; 193 |
| 184: f0 e0 ldi r31, 0x00 ; 0 |
| 186: 10 82 st Z, r1 |
| rxfifo.idx_r = 0; |
| 188: 10 92 71 01 sts 0x0171, r1 |
| rxfifo.idx_w = 0; |
| 18c: 10 92 70 01 sts 0x0170, r1 |
| rxfifo.count = 0; |
| 190: 10 92 72 01 sts 0x0172, r1 |
| UBRR0L = SYSCLK/16/9600; // Enable USRAT0 in N81,4800bps |
| 194: 81 e4 ldi r24, 0x41 ; 65 |
| 196: 80 93 c4 00 sts 0x00C4, r24 |
| UCSR0B = _BV(RXCIE0)|_BV(RXEN0)|_BV(TXEN0); |
| 19a: 88 e9 ldi r24, 0x98 ; 152 |
| 19c: 80 83 st Z, r24 |
| Stat &= 0xFD; // Clear overflow flag |
| 19e: 80 91 69 01 lds r24, 0x0169 |
| 1a2: 8d 7f andi r24, 0xFD ; 253 |
| 1a4: 80 93 69 01 sts 0x0169, r24 |
| sei(); |
| 1a8: 78 94 sei |
| 1aa: 08 95 ret |
| 000001ac <__vector_18>: |
| } |
| /* USART0 RXC interrupt */ |
| ISR(USART_RX_vect) |
| { |
| 1ac: 1f 92 push r1 |
| 1ae: 0f 92 push r0 |
| 1b0: 0f b6 in r0, 0x3f ; 63 |
| 1b2: 0f 92 push r0 |
| 1b4: 11 24 eor r1, r1 |
| 1b6: 8f 93 push r24 |
| 1b8: 9f 93 push r25 |
| 1ba: ef 93 push r30 |
| 1bc: ff 93 push r31 |
| uint8_t d, n, i; |
| d = UDR0; |
| 1be: 90 91 c6 00 lds r25, 0x00C6 |
| n = rxfifo.count; |
| 1c2: 80 91 72 01 lds r24, 0x0172 |
| if(n < sizeof(rxfifo.buff)) { |
| 1c6: 86 39 cpi r24, 0x96 ; 150 |
| 1c8: 88 f4 brcc .+34 ; 0x1ec <__vector_18+0x40> |
| rxfifo.count = ++n; |
| 1ca: 8f 5f subi r24, 0xFF ; 255 |
| 1cc: 80 93 72 01 sts 0x0172, r24 |
| i = rxfifo.idx_w; |
| 1d0: 80 91 70 01 lds r24, 0x0170 |
| rxfifo.buff[i++] = d; |
| 1d4: e8 2f mov r30, r24 |
| 1d6: ff 27 eor r31, r31 |
| 1d8: e0 59 subi r30, 0x90 ; 144 |
| 1da: fe 4f sbci r31, 0xFE ; 254 |
| 1dc: 93 83 std Z+3, r25 ; 0x03 |
| 1de: 8f 5f subi r24, 0xFF ; 255 |
| if(i >= sizeof(rxfifo.buff)) |
| 1e0: 86 39 cpi r24, 0x96 ; 150 |
| 1e2: 08 f0 brcs .+2 ; 0x1e6 <__vector_18+0x3a> |
| 1e4: 80 e0 ldi r24, 0x00 ; 0 |
| i = 0; |
| rxfifo.idx_w = i; |
| 1e6: 80 93 70 01 sts 0x0170, r24 |
| 1ea: 05 c0 rjmp .+10 ; 0x1f6 <__vector_18+0x4a> |
| } else { |
| Stat |= 2; |
| 1ec: 80 91 69 01 lds r24, 0x0169 |
| 1f0: 82 60 ori r24, 0x02 ; 2 |
| 1f2: 80 93 69 01 sts 0x0169, r24 |
| 1f6: ff 91 pop r31 |
| 1f8: ef 91 pop r30 |
| 1fa: 9f 91 pop r25 |
| 1fc: 8f 91 pop r24 |
| 1fe: 0f 90 pop r0 |
| 200: 0f be out 0x3f, r0 ; 63 |
| 202: 0f 90 pop r0 |
| 204: 1f 90 pop r1 |
| 206: 18 95 reti |
| 00000208 <get_line>: |
| /* Get a line received from GPS module */ |
| /*----------------------------------------------------*/ |
| static |
| BYTE get_line (void) // 0: Power fail occured, >0: Number of bytes received. |
| { |
| 208: 90 e0 ldi r25, 0x00 ; 0 |
| BYTE c, i = 0; |
| for (;;) { |
| if (Stat & 1) return 0; // When power fail is detected, return with zero. |
| 20a: 80 91 69 01 lds r24, 0x0169 |
| 20e: 80 ff sbrs r24, 0 |
| 210: 03 c0 rjmp .+6 ; 0x218 <get_line+0x10> |
| 212: 80 e0 ldi r24, 0x00 ; 0 |
| 214: 90 e0 ldi r25, 0x00 ; 0 |
| 216: 08 95 ret |
| uint8_t uart_get () |
| { |
| uint8_t d, i; |
| i = rxfifo.idx_r; |
| 218: 20 91 71 01 lds r18, 0x0171 |
| if (rxfifo.count == 0) return 0; |
| 21c: 80 91 72 01 lds r24, 0x0172 |
| 220: 88 23 and r24, r24 |
| 222: 19 f4 brne .+6 ; 0x22a <get_line+0x22> |
| 224: 20 e0 ldi r18, 0x00 ; 0 |
| 226: 30 e0 ldi r19, 0x00 ; 0 |
| 228: 15 c0 rjmp .+42 ; 0x254 <get_line+0x4c> |
| d = rxfifo.buff[i++]; |
| 22a: e2 2f mov r30, r18 |
| 22c: ff 27 eor r31, r31 |
| 22e: e0 59 subi r30, 0x90 ; 144 |
| 230: fe 4f sbci r31, 0xFE ; 254 |
| 232: 33 81 ldd r19, Z+3 ; 0x03 |
| 234: e2 2f mov r30, r18 |
| 236: ef 5f subi r30, 0xFF ; 255 |
| cli(); |
| 238: f8 94 cli |
| rxfifo.count--; |
| 23a: 80 91 72 01 lds r24, 0x0172 |
| 23e: 81 50 subi r24, 0x01 ; 1 |
| 240: 80 93 72 01 sts 0x0172, r24 |
| sei(); |
| 244: 78 94 sei |
| if(i >= sizeof(rxfifo.buff)) |
| 246: e6 39 cpi r30, 0x96 ; 150 |
| 248: 08 f0 brcs .+2 ; 0x24c <get_line+0x44> |
| 24a: e0 e0 ldi r30, 0x00 ; 0 |
| i = 0; |
| rxfifo.idx_r = i; |
| 24c: e0 93 71 01 sts 0x0171, r30 |
| return d; |
| 250: 23 2f mov r18, r19 |
| 252: 33 27 eor r19, r19 |
| for (;;) { |
| if (Stat & 1) return 0; // When power fail is detected, return with zero. |
| c = uart_get(); |
| if (Stat & 2) { // When buffer overflow has occured, restert to receive line. |
| 254: 80 91 69 01 lds r24, 0x0169 |
| 258: 81 ff sbrs r24, 1 |
| 25a: 03 c0 rjmp .+6 ; 0x262 <get_line+0x5a> |
| uart_init(); |
| 25c: 0e 94 c0 00 call 0x180 ; 0x180 <uart_init> |
| 260: d3 cf rjmp .-90 ; 0x208 <get_line> |
| BYTE c, i = 0; |
| for (;;) { |
| if (Stat & 1) return 0; // When power fail is detected, return with zero. |
| c = uart_get(); |
| 262: 82 2f mov r24, r18 |
| if (Stat & 2) { // When buffer overflow has occured, restert to receive line. |
| uart_init(); |
| i = 0; c = 0; |
| } |
| if (!c || (i == 0 && c != '$')) continue; |
| 264: 22 23 and r18, r18 |
| 266: 89 f2 breq .-94 ; 0x20a <get_line+0x2> |
| 268: 99 23 and r25, r25 |
| 26a: 11 f4 brne .+4 ; 0x270 <get_line+0x68> |
| 26c: 24 32 cpi r18, 0x24 ; 36 |
| 26e: 69 f6 brne .-102 ; 0x20a <get_line+0x2> |
| Buff[i++] = c; |
| 270: e9 2f mov r30, r25 |
| 272: ff 27 eor r31, r31 |
| 274: e9 5e subi r30, 0xE9 ; 233 |
| 276: fe 4f sbci r31, 0xFE ; 254 |
| 278: 20 83 st Z, r18 |
| 27a: 9f 5f subi r25, 0xFF ; 255 |
| if (c == '\n') break; |
| 27c: 8a 30 cpi r24, 0x0A ; 10 |
| 27e: 21 f0 breq .+8 ; 0x288 <get_line+0x80> |
| if (i >= sizeof(Buff)) i = 0; |
| 280: 92 35 cpi r25, 0x52 ; 82 |
| 282: 08 f0 brcs .+2 ; 0x286 <get_line+0x7e> |
| 284: c1 cf rjmp .-126 ; 0x208 <get_line> |
| 286: c1 cf rjmp .-126 ; 0x20a <get_line+0x2> |
| } |
| return i; |
| 288: 89 2f mov r24, r25 |
| 28a: 99 27 eor r25, r25 |
| } |
| 28c: 08 95 ret |
| 0000028e <beep>: |
| /*--------------------------------------------------------------------------*/ |
| /* Controls */ |
| static |
| void beep (BYTE len, BYTE cnt) |
| { |
| 28e: 98 2f mov r25, r24 |
| 290: 0f c0 rjmp .+30 ; 0x2b0 <beep+0x22> |
| while (cnt--) { |
| BEEP_ON(); |
| 292: 83 e0 ldi r24, 0x03 ; 3 |
| 294: 85 bd out 0x25, r24 ; 37 |
| DELAY(len); |
| 296: 90 93 16 01 sts 0x0116, r25 |
| 29a: 80 91 16 01 lds r24, 0x0116 |
| 29e: 88 23 and r24, r24 |
| 2a0: e1 f7 brne .-8 ; 0x29a <beep+0xc> |
| BEEP_OFF(); |
| 2a2: 15 bc out 0x25, r1 ; 37 |
| DELAY(len); |
| 2a4: 90 93 16 01 sts 0x0116, r25 |
| 2a8: 80 91 16 01 lds r24, 0x0116 |
| 2ac: 88 23 and r24, r24 |
| 2ae: e1 f7 brne .-8 ; 0x2a8 <beep+0x1a> |
| /* Controls */ |
| static |
| void beep (BYTE len, BYTE cnt) |
| { |
| while (cnt--) { |
| 2b0: 61 50 subi r22, 0x01 ; 1 |
| 2b2: 78 f7 brcc .-34 ; 0x292 <beep+0x4> |
| 2b4: 08 95 ret |
| 000002b6 <gp_comp>: |
| /* Compare sentence header string */ |
| static |
| BYTE gp_comp (BYTE *str1, const prog_uint8_t *str2) |
| { |
| 2b6: dc 01 movw r26, r24 |
| 2b8: fb 01 movw r30, r22 |
| BYTE c; |
| do { |
| c = pgm_read_byte(str2++); |
| 2ba: 6f 5f subi r22, 0xFF ; 255 |
| 2bc: 7f 4f sbci r23, 0xFF ; 255 |
| 2be: 94 91 lpm r25, Z |
| } while (c && c == *str1++); |
| 2c0: 99 23 and r25, r25 |
| 2c2: 29 f0 breq .+10 ; 0x2ce <gp_comp+0x18> |
| 2c4: 8c 91 ld r24, X |
| 2c6: 98 17 cp r25, r24 |
| 2c8: 11 f4 brne .+4 ; 0x2ce <gp_comp+0x18> |
| 2ca: 11 96 adiw r26, 0x01 ; 1 |
| 2cc: f5 cf rjmp .-22 ; 0x2b8 <gp_comp+0x2> |
| return c; |
| } |
| 2ce: 89 2f mov r24, r25 |
| 2d0: 99 27 eor r25, r25 |
| 2d2: 08 95 ret |
| 000002d4 <gp_col>: |
| /* Get a column item */ |
| static |
| BYTE* gp_col ( /* Returns pointer to the item (returns a NULL when not found) */ |
| const BYTE* buf, /* Pointer to the sentence */ |
| BYTE col /* Column number (0 is the 1st item) */ |
| ) { |
| 2d4: fc 01 movw r30, r24 |
| 2d6: 0a c0 rjmp .+20 ; 0x2ec <gp_col+0x18> |
| BYTE c; |
| while (col) { |
| do { |
| c = *buf++; |
| 2d8: 80 81 ld r24, Z |
| if (c <= ' ') return NULL; |
| 2da: 81 32 cpi r24, 0x21 ; 33 |
| 2dc: 18 f4 brcc .+6 ; 0x2e4 <gp_col+0x10> |
| 2de: 80 e0 ldi r24, 0x00 ; 0 |
| 2e0: 90 e0 ldi r25, 0x00 ; 0 |
| 2e2: 08 95 ret |
| BYTE c; |
| while (col) { |
| do { |
| c = *buf++; |
| 2e4: 31 96 adiw r30, 0x01 ; 1 |
| if (c <= ' ') return NULL; |
| } while (c != ','); |
| 2e6: 8c 32 cpi r24, 0x2C ; 44 |
| 2e8: b9 f7 brne .-18 ; 0x2d8 <gp_col+0x4> |
| col--; |
| 2ea: 61 50 subi r22, 0x01 ; 1 |
| BYTE col /* Column number (0 is the 1st item) */ |
| ) { |
| BYTE c; |
| while (col) { |
| 2ec: 66 23 and r22, r22 |
| 2ee: a1 f7 brne .-24 ; 0x2d8 <gp_col+0x4> |
| c = *buf++; |
| if (c <= ' ') return NULL; |
| } while (c != ','); |
| col--; |
| } |
| return (BYTE*)buf; |
| 2f0: cf 01 movw r24, r30 |
| } |
| 2f2: 08 95 ret |
| 000002f4 <__vector_11>: |
| /* 100Hz timer interrupt generated by OC1A */ |
| /*---------------------------------------------------------*/ |
| ISR(TIMER1_COMPA_vect) |
| { |
| 2f4: 1f 92 push r1 |
| 2f6: 0f 92 push r0 |
| 2f8: 0f b6 in r0, 0x3f ; 63 |
| 2fa: 0f 92 push r0 |
| 2fc: 11 24 eor r1, r1 |
| 2fe: 2f 93 push r18 |
| 300: 3f 93 push r19 |
| 302: 4f 93 push r20 |
| 304: 5f 93 push r21 |
| 306: 6f 93 push r22 |
| 308: 7f 93 push r23 |
| 30a: 8f 93 push r24 |
| 30c: 9f 93 push r25 |
| 30e: af 93 push r26 |
| 310: bf 93 push r27 |
| 312: ef 93 push r30 |
| 314: ff 93 push r31 |
| BYTE n; |
| static WORD ivt_sync; |
| n = Timer; |
| 316: 80 91 16 01 lds r24, 0x0116 |
| if (n) Timer = n - 1; |
| 31a: 88 23 and r24, r24 |
| 31c: 19 f0 breq .+6 ; 0x324 <__vector_11+0x30> |
| 31e: 81 50 subi r24, 0x01 ; 1 |
| 320: 80 93 16 01 sts 0x0116, r24 |
| if (++ivt_sync >= 180 * 100) { |
| 324: 80 91 06 01 lds r24, 0x0106 |
| 328: 90 91 07 01 lds r25, 0x0107 |
| 32c: 01 96 adiw r24, 0x01 ; 1 |
| 32e: 90 93 07 01 sts 0x0107, r25 |
| 332: 80 93 06 01 sts 0x0106, r24 |
| 336: 80 55 subi r24, 0x50 ; 80 |
| 338: 96 44 sbci r25, 0x46 ; 70 |
| 33a: 48 f0 brcs .+18 ; 0x34e <__vector_11+0x5a> |
| ivt_sync = 0; |
| 33c: 10 92 07 01 sts 0x0107, r1 |
| 340: 10 92 06 01 sts 0x0106, r1 |
| Stat |= 4; |
| 344: 80 91 69 01 lds r24, 0x0169 |
| 348: 84 60 ori r24, 0x04 ; 4 |
| 34a: 80 93 69 01 sts 0x0169, r24 |
| } |
| disk_timerproc(); /* Drive timer procedure of low level disk I/O module */ |
| 34e: 0e 94 c8 0d call 0x1b90 ; 0x1b90 <disk_timerproc> |
| 352: ff 91 pop r31 |
| 354: ef 91 pop r30 |
| 356: bf 91 pop r27 |
| 358: af 91 pop r26 |
| 35a: 9f 91 pop r25 |
| 35c: 8f 91 pop r24 |
| 35e: 7f 91 pop r23 |
| 360: 6f 91 pop r22 |
| 362: 5f 91 pop r21 |
| 364: 4f 91 pop r20 |
| 366: 3f 91 pop r19 |
| 368: 2f 91 pop r18 |
| 36a: 0f 90 pop r0 |
| 36c: 0f be out 0x3f, r0 ; 63 |
| 36e: 0f 90 pop r0 |
| 370: 1f 90 pop r1 |
| 372: 18 95 reti |
| 00000374 <main>: |
| /*-----------------------------------------------------------------------*/ |
| /* Main */ |
| int main () |
| { |
| 374: cd ef ldi r28, 0xFD ; 253 |
| 376: d4 e0 ldi r29, 0x04 ; 4 |
| 378: de bf out 0x3e, r29 ; 62 |
| 37a: cd bf out 0x3d, r28 ; 61 |
| static |
| void ioinit (void) |
| { |
| PORTB = 0b00001101; // Port B |
| 37c: 8d e0 ldi r24, 0x0D ; 13 |
| 37e: 85 b9 out 0x05, r24 ; 5 |
| DDRB = 0b00101110; |
| 380: 8e e2 ldi r24, 0x2E ; 46 |
| 382: 84 b9 out 0x04, r24 ; 4 |
| PORTC = 0b00111111; // Port C |
| 384: 8f e3 ldi r24, 0x3F ; 63 |
| 386: 88 b9 out 0x08, r24 ; 8 |
| DDRC = 0b00000000; |
| 388: 17 b8 out 0x07, r1 ; 7 |
| PORTD = 0b10101110; // Port D |
| 38a: 8e ea ldi r24, 0xAE ; 174 |
| 38c: 8b b9 out 0x0b, r24 ; 11 |
| DDRD = 0b01010010; |
| 38e: 82 e5 ldi r24, 0x52 ; 82 |
| 390: 8a b9 out 0x0a, r24 ; 10 |
| SPCR = 0b01010000; /* Initialize SPI port (Mode 0) */ |
| 392: 80 e5 ldi r24, 0x50 ; 80 |
| 394: 8c bd out 0x2c, r24 ; 44 |
| SPSR = 0b00000001; |
| 396: 81 e0 ldi r24, 0x01 ; 1 |
| 398: 8d bd out 0x2d, r24 ; 45 |
| OCR1A = SYSCLK/8/100-1; // Timer1: 100Hz interval (OC1A) |
| 39a: 83 ed ldi r24, 0xD3 ; 211 |
| 39c: 90 e3 ldi r25, 0x30 ; 48 |
| 39e: 90 93 89 00 sts 0x0089, r25 |
| 3a2: 80 93 88 00 sts 0x0088, r24 |
| TCCR1B = 0b00001010; |
| 3a6: 8a e0 ldi r24, 0x0A ; 10 |
| 3a8: 80 93 81 00 sts 0x0081, r24 |
| TIMSK1 = _BV(OCIE1A); // Enable TC1.oca interrupt |
| 3ac: 82 e0 ldi r24, 0x02 ; 2 |
| 3ae: 80 93 6f 00 sts 0x006F, r24 |
| OCR0A = SYSCLK/64/4000/2-1; // Timer0: 4kHz sound (OC0A) |
| 3b2: 82 e1 ldi r24, 0x12 ; 18 |
| 3b4: 87 bd out 0x27, r24 ; 39 |
| TCCR0A = 0b01000010; |
| 3b6: 82 e4 ldi r24, 0x42 ; 66 |
| 3b8: 84 bd out 0x24, r24 ; 36 |
| ADMUX = POWER_check; // Select ADC input |
| 3ba: 81 e4 ldi r24, 0x41 ; 65 |
| 3bc: 80 93 7c 00 sts 0x007C, r24 |
| ADCSRA = _BV(ADEN)|_BV(ADSC)|_BV(ADIF)|_BV(ADIE)|0b111; |
| 3c0: 8f ed ldi r24, 0xDF ; 223 |
| 3c2: 80 93 7a 00 sts 0x007A, r24 |
| sei(); |
| 3c6: 78 94 sei |
| BYTE b, err, *p = NULL; |
| WORD s; |
| ioinit(); |
| f_mount(0, &fatfs); /* Enable file I/O layer */ |
| 3c8: 67 e2 ldi r22, 0x27 ; 39 |
| 3ca: 72 e0 ldi r23, 0x02 ; 2 |
| 3cc: 80 e0 ldi r24, 0x00 ; 0 |
| 3ce: 0e 94 ef 08 call 0x11de ; 0x11de <f_mount> |
| 3d2: cc 24 eor r12, r12 |
| 3d4: dd 24 eor r13, r13 |
| 3d6: 47 e1 ldi r20, 0x17 ; 23 |
| 3d8: e4 2e mov r14, r20 |
| 3da: 41 e0 ldi r20, 0x01 ; 1 |
| 3dc: f4 2e mov r15, r20 |
| 3de: 3b e0 ldi r19, 0x0B ; 11 |
| 3e0: a3 2e mov r10, r19 |
| 3e2: 32 e0 ldi r19, 0x02 ; 2 |
| 3e4: b3 2e mov r11, r19 |
| // || !gp_comp(Buff, PSTR("$GPGSV")) |
| // || !gp_comp(Buff, PSTR("$GPZDA")) |
| // || !gp_comp(Buff, PSTR("$GPVTG")) |
| ) |
| { |
| if (f_write(&file1, Buff, b, &s) || b != s) { err = 5; break; }; |
| 3e6: 2e 01 movw r4, r28 |
| 3e8: 08 94 sec |
| 3ea: 41 1c adc r4, r1 |
| 3ec: 51 1c adc r5, r1 |
| 3ee: 22 e1 ldi r18, 0x12 ; 18 |
| 3f0: 62 2e mov r6, r18 |
| 3f2: 21 e0 ldi r18, 0x01 ; 1 |
| 3f4: 72 2e mov r7, r18 |
| 3f6: 9a e6 ldi r25, 0x6A ; 106 |
| 3f8: 89 2e mov r8, r25 |
| 3fa: 91 e0 ldi r25, 0x01 ; 1 |
| 3fc: 99 2e mov r9, r25 |
| 3fe: 89 e0 ldi r24, 0x09 ; 9 |
| 400: 28 2e mov r2, r24 |
| 402: 31 2c mov r3, r1 |
| 404: 2e 0c add r2, r14 |
| 406: 3f 1c adc r3, r15 |
| static |
| void uart_stop (void) |
| { |
| UCSR0B = 0; |
| 408: 10 92 c1 00 sts 0x00C1, r1 |
| ioinit(); |
| f_mount(0, &fatfs); /* Enable file I/O layer */ |
| for (;;) { |
| uart_stop(); |
| GPS_OFF(); |
| 40c: 29 98 cbi 0x05, 1 ; 5 |
| Timer = 100; |
| 40e: 84 e6 ldi r24, 0x64 ; 100 |
| 410: 80 93 16 01 sts 0x0116, r24 |
| do { |
| if (Stat & 1) Timer = 100; |
| 414: 80 91 69 01 lds r24, 0x0169 |
| 418: 80 ff sbrs r24, 0 |
| 41a: 03 c0 rjmp .+6 ; 0x422 <main+0xae> |
| 41c: 84 e6 ldi r24, 0x64 ; 100 |
| 41e: 80 93 16 01 sts 0x0116, r24 |
| } while (Timer); |
| 422: 80 91 16 01 lds r24, 0x0116 |
| 426: 88 23 and r24, r24 |
| 428: a9 f7 brne .-22 ; 0x414 <main+0xa0> |
| GPS_ON(); |
| 42a: 29 9a sbi 0x05, 1 ; 5 |
| Timer = 255; |
| 42c: 8f ef ldi r24, 0xFF ; 255 |
| 42e: 80 93 16 01 sts 0x0116, r24 |
| do { |
| if ((Stat & 1) || (disk_status(0) & STA_NODISK)) Timer = 255; |
| 432: 80 91 69 01 lds r24, 0x0169 |
| 436: 80 fd sbrc r24, 0 |
| 438: 05 c0 rjmp .+10 ; 0x444 <main+0xd0> |
| 43a: 80 e0 ldi r24, 0x00 ; 0 |
| 43c: 0e 94 bf 0d call 0x1b7e ; 0x1b7e <disk_status> |
| 440: 81 ff sbrs r24, 1 |
| 442: 03 c0 rjmp .+6 ; 0x44a <main+0xd6> |
| 444: 8f ef ldi r24, 0xFF ; 255 |
| 446: 80 93 16 01 sts 0x0116, r24 |
| } while (Timer); |
| 44a: 80 91 16 01 lds r24, 0x0116 |
| 44e: 88 23 and r24, r24 |
| 450: 81 f7 brne .-32 ; 0x432 <main+0xbe> |
| beep(5, 1); // Single beep. Start to get current time. |
| 452: 61 e0 ldi r22, 0x01 ; 1 |
| 454: 85 e0 ldi r24, 0x05 ; 5 |
| 456: 0e 94 47 01 call 0x28e ; 0x28e <beep> |
| uart_init(); |
| 45a: 0e 94 c0 00 call 0x180 ; 0x180 <uart_init> |
| /* Initialize GPS module (depends on each product) */ |
| static |
| void gp_init (void) |
| { |
| const prog_char *s = |
| PSTR("$PSRF106,21*0F\r\n"); // Select datum of WGS84 (for EM-406A) |
| 45e: 27 e8 ldi r18, 0x87 ; 135 |
| 460: 30 e0 ldi r19, 0x00 ; 0 |
| 462: 06 c0 rjmp .+12 ; 0x470 <main+0xfc> |
| /* Put a character to transmit */ |
| static |
| void uart_put (uint8_t d) |
| { |
| while (bit_is_clear(UCSR0A, UDRE0)); |
| 464: 80 91 c0 00 lds r24, 0x00C0 |
| 468: 85 ff sbrs r24, 5 |
| 46a: fc cf rjmp .-8 ; 0x464 <main+0xf0> |
| UDR0 = d; |
| 46c: 90 93 c6 00 sts 0x00C6, r25 |
| 470: f9 01 movw r30, r18 |
| { |
| const prog_char *s = |
| PSTR("$PSRF106,21*0F\r\n"); // Select datum of WGS84 (for EM-406A) |
| char c; |
| while ((c = pgm_read_byte(s++)) != 0) uart_put(c); |
| 472: 2f 5f subi r18, 0xFF ; 255 |
| 474: 3f 4f sbci r19, 0xFF ; 255 |
| 476: 94 91 lpm r25, Z |
| 478: 99 23 and r25, r25 |
| 47a: a1 f7 brne .-24 ; 0x464 <main+0xf0> |
| beep(5, 1); // Single beep. Start to get current time. |
| uart_init(); |
| gp_init(); // Initialize GPS module to let output data in NMEA-0183 format. |
| do { // Wait for valid RMC sentence. |
| b = get_line(); |
| 47c: 0e 94 04 01 call 0x208 ; 0x208 <get_line> |
| if (!b) break; |
| 480: 88 23 and r24, r24 |
| 482: 09 f4 brne .+2 ; 0x486 <main+0x112> |
| 484: c1 cf rjmp .-126 ; 0x408 <main+0x94> |
| if (gp_comp(Buff, PSTR("$GPRMC"))) continue; |
| 486: 60 e8 ldi r22, 0x80 ; 128 |
| 488: 70 e0 ldi r23, 0x00 ; 0 |
| 48a: c7 01 movw r24, r14 |
| 48c: 0e 94 5b 01 call 0x2b6 ; 0x2b6 <gp_comp> |
| 490: 88 23 and r24, r24 |
| 492: 29 f4 brne .+10 ; 0x49e <main+0x12a> |
| p = gp_col(Buff,2); |
| 494: 62 e0 ldi r22, 0x02 ; 2 |
| 496: c7 01 movw r24, r14 |
| 498: 0e 94 6a 01 call 0x2d4 ; 0x2d4 <gp_col> |
| 49c: 6c 01 movw r12, r24 |
| } while (!p || *p != 'A'); |
| 49e: c1 14 cp r12, r1 |
| 4a0: d1 04 cpc r13, r1 |
| 4a2: 61 f3 breq .-40 ; 0x47c <main+0x108> |
| 4a4: f6 01 movw r30, r12 |
| 4a6: 80 81 ld r24, Z |
| 4a8: 81 34 cpi r24, 0x41 ; 65 |
| 4aa: 41 f7 brne .-48 ; 0x47c <main+0x108> |
| if (!b) continue; |
| p = gp_col(Buff,9); // Open log file with the name of current date (YYMMDD.log in UTC). |
| 4ac: 69 e0 ldi r22, 0x09 ; 9 |
| 4ae: c7 01 movw r24, r14 |
| 4b0: 0e 94 6a 01 call 0x2d4 ; 0x2d4 <gp_col> |
| 4b4: 6c 01 movw r12, r24 |
| if (!p) {err = 3; break;} |
| 4b6: 00 97 sbiw r24, 0x00 ; 0 |
| 4b8: 11 f4 brne .+4 ; 0x4be <main+0x14a> |
| 4ba: 63 e0 ldi r22, 0x03 ; 3 |
| 4bc: a8 c0 rjmp .+336 ; 0x60e <__stack+0x10f> |
| memcpy(&Buff[0], p+4, 2); |
| 4be: fc 01 movw r30, r24 |
| 4c0: 84 81 ldd r24, Z+4 ; 0x04 |
| 4c2: 95 81 ldd r25, Z+5 ; 0x05 |
| 4c4: 90 93 18 01 sts 0x0118, r25 |
| 4c8: 80 93 17 01 sts 0x0117, r24 |
| memcpy(&Buff[2], p+2, 2); |
| 4cc: 82 81 ldd r24, Z+2 ; 0x02 |
| 4ce: 93 81 ldd r25, Z+3 ; 0x03 |
| 4d0: 90 93 1a 01 sts 0x011A, r25 |
| 4d4: 80 93 19 01 sts 0x0119, r24 |
| memcpy(&Buff[4], p+0, 2); |
| 4d8: 80 81 ld r24, Z |
| 4da: 91 81 ldd r25, Z+1 ; 0x01 |
| 4dc: 90 93 1c 01 sts 0x011C, r25 |
| 4e0: 80 93 1b 01 sts 0x011B, r24 |
| strcpy_P(&Buff[6], PSTR(".log")); |
| 4e4: 6b e7 ldi r22, 0x7B ; 123 |
| 4e6: 70 e0 ldi r23, 0x00 ; 0 |
| 4e8: 8d e1 ldi r24, 0x1D ; 29 |
| 4ea: 91 e0 ldi r25, 0x01 ; 1 |
| 4ec: 0e 94 8d 10 call 0x211a ; 0x211a <strcpy_P> |
| if (f_open(&file1, Buff, FA_OPEN_ALWAYS | FA_WRITE) || f_lseek(&file1, file1.fsize)) { err = 4; break; } |
| 4f0: 42 e1 ldi r20, 0x12 ; 18 |
| 4f2: b7 01 movw r22, r14 |
| 4f4: c5 01 movw r24, r10 |
| 4f6: 0e 94 44 09 call 0x1288 ; 0x1288 <f_open> |
| 4fa: 89 2b or r24, r25 |
| 4fc: 09 f0 breq .+2 ; 0x500 <__stack+0x1> |
| 4fe: 86 c0 rjmp .+268 ; 0x60c <__stack+0x10d> |
| 500: 40 91 15 02 lds r20, 0x0215 |
| 504: 50 91 16 02 lds r21, 0x0216 |
| 508: 60 91 17 02 lds r22, 0x0217 |
| 50c: 70 91 18 02 lds r23, 0x0218 |
| 510: c5 01 movw r24, r10 |
| 512: 0e 94 8b 05 call 0xb16 ; 0xb16 <f_lseek> |
| 516: 89 2b or r24, r25 |
| 518: 09 f0 breq .+2 ; 0x51c <__stack+0x1d> |
| 51a: 78 c0 rjmp .+240 ; 0x60c <__stack+0x10d> |
| beep(5, 2); // Two beeps. Start logging. |
| 51c: 62 e0 ldi r22, 0x02 ; 2 |
| 51e: 85 e0 ldi r24, 0x05 ; 5 |
| 520: 0e 94 47 01 call 0x28e ; 0x28e <beep> |
| 524: 65 c0 rjmp .+202 ; 0x5f0 <__stack+0xf1> |
| err = 0; |
| while ((b = get_line()) > 0) { |
| if ( !gp_comp(Buff, PSTR("$GPGGA")) // Which sentence is logged? |
| 526: 64 e7 ldi r22, 0x74 ; 116 |
| 528: 70 e0 ldi r23, 0x00 ; 0 |
| 52a: c7 01 movw r24, r14 |
| 52c: 0e 94 5b 01 call 0x2b6 ; 0x2b6 <gp_comp> |
| 530: 88 23 and r24, r24 |
| 532: 41 f0 breq .+16 ; 0x544 <__stack+0x45> |
| 534: 6d e6 ldi r22, 0x6D ; 109 |
| 536: 70 e0 ldi r23, 0x00 ; 0 |
| 538: c7 01 movw r24, r14 |
| 53a: 0e 94 5b 01 call 0x2b6 ; 0x2b6 <gp_comp> |
| 53e: 88 23 and r24, r24 |
| 540: 09 f0 breq .+2 ; 0x544 <__stack+0x45> |
| 542: 44 c0 rjmp .+136 ; 0x5cc <__stack+0xcd> |
| // || !gp_comp(Buff, PSTR("$GPGSV")) |
| // || !gp_comp(Buff, PSTR("$GPZDA")) |
| // || !gp_comp(Buff, PSTR("$GPVTG")) |
| ) |
| { |
| if (f_write(&file1, Buff, b, &s) || b != s) { err = 5; break; }; |
| 544: 01 2f mov r16, r17 |
| 546: 11 27 eor r17, r17 |
| 548: 92 01 movw r18, r4 |
| 54a: a8 01 movw r20, r16 |
| 54c: b7 01 movw r22, r14 |
| 54e: c5 01 movw r24, r10 |
| 550: 0e 94 c0 06 call 0xd80 ; 0xd80 <f_write> |
| 554: 89 2b or r24, r25 |
| 556: 09 f0 breq .+2 ; 0x55a <__stack+0x5b> |
| 558: 52 c0 rjmp .+164 ; 0x5fe <__stack+0xff> |
| 55a: 89 81 ldd r24, Y+1 ; 0x01 |
| 55c: 9a 81 ldd r25, Y+2 ; 0x02 |
| 55e: 08 17 cp r16, r24 |
| 560: 19 07 cpc r17, r25 |
| 562: 09 f0 breq .+2 ; 0x566 <__stack+0x67> |
| 564: 4c c0 rjmp .+152 ; 0x5fe <__stack+0xff> |
| itoa(battery,&Value1,10); |
| 566: 4a e0 ldi r20, 0x0A ; 10 |
| 568: 50 e0 ldi r21, 0x00 ; 0 |
| 56a: b3 01 movw r22, r6 |
| 56c: 80 91 6e 01 lds r24, 0x016E |
| 570: 90 91 6f 01 lds r25, 0x016F |
| 574: 0e 94 b8 10 call 0x2170 ; 0x2170 <itoa> |
| itoa(intensity,&Value2,10); |
| 578: 4a e0 ldi r20, 0x0A ; 10 |
| 57a: 50 e0 ldi r21, 0x00 ; 0 |
| 57c: b4 01 movw r22, r8 |
| 57e: 80 91 09 02 lds r24, 0x0209 |
| 582: 90 91 0a 02 lds r25, 0x020A |
| 586: 0e 94 b8 10 call 0x2170 ; 0x2170 <itoa> |
| strcpy(&Buff[0], Value1); |
| 58a: b3 01 movw r22, r6 |
| 58c: c7 01 movw r24, r14 |
| 58e: 0e 94 b1 10 call 0x2162 ; 0x2162 <strcpy> |
| strcpy_P(&Buff[4], PSTR(",")); |
| 592: 6b e6 ldi r22, 0x6B ; 107 |
| 594: 70 e0 ldi r23, 0x00 ; 0 |
| 596: 8b e1 ldi r24, 0x1B ; 27 |
| 598: 91 e0 ldi r25, 0x01 ; 1 |
| 59a: 0e 94 8d 10 call 0x211a ; 0x211a <strcpy_P> |
| strcpy(&Buff[5], Value2); |
| 59e: b4 01 movw r22, r8 |
| 5a0: 8c e1 ldi r24, 0x1C ; 28 |
| 5a2: 91 e0 ldi r25, 0x01 ; 1 |
| 5a4: 0e 94 b1 10 call 0x2162 ; 0x2162 <strcpy> |
| strcpy_P(&Buff[9], PSTR("\r\n")); |
| 5a8: 68 e6 ldi r22, 0x68 ; 104 |
| 5aa: 70 e0 ldi r23, 0x00 ; 0 |
| 5ac: c1 01 movw r24, r2 |
| 5ae: 0e 94 8d 10 call 0x211a ; 0x211a <strcpy_P> |
| if (f_write(&file1, Buff, 11, &s) || 11 != s) { err = 5; break; }; |
| 5b2: 92 01 movw r18, r4 |
| 5b4: 4b e0 ldi r20, 0x0B ; 11 |
| 5b6: 50 e0 ldi r21, 0x00 ; 0 |
| 5b8: b7 01 movw r22, r14 |
| 5ba: c5 01 movw r24, r10 |
| 5bc: 0e 94 c0 06 call 0xd80 ; 0xd80 <f_write> |
| 5c0: 89 2b or r24, r25 |
| 5c2: e9 f4 brne .+58 ; 0x5fe <__stack+0xff> |
| 5c4: 89 81 ldd r24, Y+1 ; 0x01 |
| 5c6: 9a 81 ldd r25, Y+2 ; 0x02 |
| 5c8: 0b 97 sbiw r24, 0x0b ; 11 |
| 5ca: c9 f4 brne .+50 ; 0x5fe <__stack+0xff> |
| } |
| if ((Stat & 4) == 0) continue; |
| 5cc: 80 91 69 01 lds r24, 0x0169 |
| 5d0: 82 ff sbrs r24, 2 |
| 5d2: 0e c0 rjmp .+28 ; 0x5f0 <__stack+0xf1> |
| if (f_sync(&file1)) { err = 6; break; };// Synchronize the file in interval of 300 sec. |
| 5d4: c5 01 movw r24, r10 |
| 5d6: 0e 94 5d 06 call 0xcba ; 0xcba <f_sync> |
| 5da: 89 2b or r24, r25 |
| 5dc: 11 f0 breq .+4 ; 0x5e2 <__stack+0xe3> |
| 5de: 66 e0 ldi r22, 0x06 ; 6 |
| 5e0: 16 c0 rjmp .+44 ; 0x60e <__stack+0x10f> |
| cli(); Stat &= 0xFB; sei(); // Clear sync request |
| 5e2: f8 94 cli |
| 5e4: 80 91 69 01 lds r24, 0x0169 |
| 5e8: 8b 7f andi r24, 0xFB ; 251 |
| 5ea: 80 93 69 01 sts 0x0169, r24 |
| 5ee: 78 94 sei |
| strcpy_P(&Buff[6], PSTR(".log")); |
| if (f_open(&file1, Buff, FA_OPEN_ALWAYS | FA_WRITE) || f_lseek(&file1, file1.fsize)) { err = 4; break; } |
| beep(5, 2); // Two beeps. Start logging. |
| err = 0; |
| while ((b = get_line()) > 0) { |
| 5f0: 0e 94 04 01 call 0x208 ; 0x208 <get_line> |
| 5f4: 18 2f mov r17, r24 |
| 5f6: 88 23 and r24, r24 |
| 5f8: 09 f0 breq .+2 ; 0x5fc <__stack+0xfd> |
| 5fa: 95 cf rjmp .-214 ; 0x526 <__stack+0x27> |
| 5fc: 0f c0 rjmp .+30 ; 0x61c <__stack+0x11d> |
| 5fe: 65 e0 ldi r22, 0x05 ; 5 |
| 600: 06 c0 rjmp .+12 ; 0x60e <__stack+0x10f> |
| uart_stop(); |
| GPS_OFF(); |
| if (f_close(&file1)) { err = 7; break; }; |
| // When a long beep is sounded, the shutdoun process has been succeeded. |
| beep(50, 1); |
| 602: 61 e0 ldi r22, 0x01 ; 1 |
| 604: 82 e3 ldi r24, 0x32 ; 50 |
| 606: 0e 94 47 01 call 0x28e ; 0x28e <beep> |
| 60a: fe ce rjmp .-516 ; 0x408 <main+0x94> |
| 60c: 64 e0 ldi r22, 0x04 ; 4 |
| static |
| void uart_stop (void) |
| { |
| UCSR0B = 0; |
| 60e: 10 92 c1 00 sts 0x00C1, r1 |
| beep(50, 1); |
| } |
| // Unrecoverble error. Enter shutdown state. |
| uart_stop(); |
| GPS_OFF(); |
| 612: 29 98 cbi 0x05, 1 ; 5 |
| beep(25, err); |
| 614: 89 e1 ldi r24, 0x19 ; 25 |
| 616: 0e 94 47 01 call 0x28e ; 0x28e <beep> |
| 61a: ff cf rjmp .-2 ; 0x61a <__stack+0x11b> |
| static |
| void uart_stop (void) |
| { |
| UCSR0B = 0; |
| 61c: 10 92 c1 00 sts 0x00C1, r1 |
| } |
| if (err) break; |
| // Turn-off GPS power and close the log file by power supply is discharged. |
| uart_stop(); |
| GPS_OFF(); |
| 620: 29 98 cbi 0x05, 1 ; 5 |
| if (f_close(&file1)) { err = 7; break; }; |
| 622: c5 01 movw r24, r10 |
| 624: 0e 94 b4 06 call 0xd68 ; 0xd68 <f_close> |
| 628: 89 2b or r24, r25 |
| 62a: 59 f3 breq .-42 ; 0x602 <__stack+0x103> |
| 62c: 67 e0 ldi r22, 0x07 ; 7 |
| 62e: ef cf rjmp .-34 ; 0x60e <__stack+0x10f> |
| 00000630 <clust2sect>: |
| static |
| DWORD clust2sect ( /* !=0: sector number, 0: failed - invalid cluster# */ |
| CLUST clust /* Cluster# to be converted */ |
| ) |
| { |
| 630: cf 93 push r28 |
| 632: df 93 push r29 |
| FATFS *fs = FatFs; |
| 634: c0 91 0a 01 lds r28, 0x010A |
| 638: d0 91 0b 01 lds r29, 0x010B |
| clust -= 2; |
| 63c: bc 01 movw r22, r24 |
| 63e: 62 50 subi r22, 0x02 ; 2 |
| 640: 70 40 sbci r23, 0x00 ; 0 |
| if (clust >= (fs->max_clust - 2)) return 0; /* Invalid cluster# */ |
| 642: 8e 89 ldd r24, Y+22 ; 0x16 |
| 644: 9f 89 ldd r25, Y+23 ; 0x17 |
| 646: 02 97 sbiw r24, 0x02 ; 2 |
| 648: 68 17 cp r22, r24 |
| 64a: 79 07 cpc r23, r25 |
| 64c: 28 f0 brcs .+10 ; 0x658 <clust2sect+0x28> |
| 64e: 20 e0 ldi r18, 0x00 ; 0 |
| 650: 30 e0 ldi r19, 0x00 ; 0 |
| 652: 40 e0 ldi r20, 0x00 ; 0 |
| 654: 50 e0 ldi r21, 0x00 ; 0 |
| 656: 12 c0 rjmp .+36 ; 0x67c <clust2sect+0x4c> |
| return (DWORD)clust * fs->sects_clust + fs->database; |
| 658: 88 27 eor r24, r24 |
| 65a: 99 27 eor r25, r25 |
| 65c: 2d 8d ldd r18, Y+29 ; 0x1d |
| 65e: 33 27 eor r19, r19 |
| 660: 44 27 eor r20, r20 |
| 662: 55 27 eor r21, r21 |
| 664: 0e 94 e9 10 call 0x21d2 ; 0x21d2 <__mulsi3> |
| 668: 9b 01 movw r18, r22 |
| 66a: ac 01 movw r20, r24 |
| 66c: 88 89 ldd r24, Y+16 ; 0x10 |
| 66e: 99 89 ldd r25, Y+17 ; 0x11 |
| 670: aa 89 ldd r26, Y+18 ; 0x12 |
| 672: bb 89 ldd r27, Y+19 ; 0x13 |
| 674: 28 0f add r18, r24 |
| 676: 39 1f adc r19, r25 |
| 678: 4a 1f adc r20, r26 |
| 67a: 5b 1f adc r21, r27 |
| } |
| 67c: ca 01 movw r24, r20 |
| 67e: b9 01 movw r22, r18 |
| 680: df 91 pop r29 |
| 682: cf 91 pop r28 |
| 684: 08 95 ret |
| 00000686 <validate>: |
| static |
| FRESULT validate ( /* FR_OK(0): The id is valid, !=0: Not valid */ |
| const FATFS *fs, /* Pointer to the file system object */ |
| WORD id /* id member of the target object to be checked */ |
| ) |
| { |
| 686: fc 01 movw r30, r24 |
| if (!fs || fs->id != id) |
| 688: 89 2b or r24, r25 |
| 68a: 61 f0 breq .+24 ; 0x6a4 <validate+0x1e> |
| 68c: 80 81 ld r24, Z |
| 68e: 91 81 ldd r25, Z+1 ; 0x01 |
| 690: 86 17 cp r24, r22 |
| 692: 97 07 cpc r25, r23 |
| 694: 39 f4 brne .+14 ; 0x6a4 <validate+0x1e> |
| return FR_INVALID_OBJECT; |
| if (disk_status(0) & STA_NOINIT) |
| 696: 80 e0 ldi r24, 0x00 ; 0 |
| 698: 0e 94 bf 0d call 0x1b7e ; 0x1b7e <disk_status> |
| 69c: 99 27 eor r25, r25 |
| 69e: 81 70 andi r24, 0x01 ; 1 |
| 6a0: 90 70 andi r25, 0x00 ; 0 |
| 6a2: 08 95 ret |
| 6a4: 8c e0 ldi r24, 0x0C ; 12 |
| 6a6: 90 e0 ldi r25, 0x00 ; 0 |
| return FR_NOT_READY; |
| return FR_OK; |
| } |
| 6a8: 08 95 ret |
| 000006aa <move_window>: |
| static |
| BOOL move_window ( /* TRUE: successful, FALSE: failed */ |
| DWORD sector /* Sector number to make apperance in the FatFs->win */ |
| ) /* Move to zero only writes back dirty window */ |
| { |
| 6aa: a0 e0 ldi r26, 0x00 ; 0 |
| 6ac: b0 e0 ldi r27, 0x00 ; 0 |
| 6ae: eb e5 ldi r30, 0x5B ; 91 |
| 6b0: f3 e0 ldi r31, 0x03 ; 3 |
| 6b2: 0c 94 2e 11 jmp 0x225c ; 0x225c <__prologue_saves__+0x8> |
| 6b6: 4b 01 movw r8, r22 |
| 6b8: 5c 01 movw r10, r24 |
| DWORD wsect; |
| FATFS *fs = FatFs; |
| 6ba: c0 91 0a 01 lds r28, 0x010A |
| 6be: d0 91 0b 01 lds r29, 0x010B |
| wsect = fs->winsect; |
| 6c2: cc 80 ldd r12, Y+4 ; 0x04 |
| 6c4: dd 80 ldd r13, Y+5 ; 0x05 |
| 6c6: ee 80 ldd r14, Y+6 ; 0x06 |
| 6c8: ff 80 ldd r15, Y+7 ; 0x07 |
| if (wsect != sector) { /* Changed current window */ |
| 6ca: c6 16 cp r12, r22 |
| 6cc: d7 06 cpc r13, r23 |
| 6ce: e8 06 cpc r14, r24 |
| 6d0: f9 06 cpc r15, r25 |
| 6d2: 09 f4 brne .+2 ; 0x6d6 <move_window+0x2c> |
| 6d4: 4f c0 rjmp .+158 ; 0x774 <move_window+0xca> |
| #if !_FS_READONLY |
| BYTE n; |
| if (fs->winflag) { /* Write back dirty window if needed */ |
| 6d6: 8f 8d ldd r24, Y+31 ; 0x1f |
| 6d8: 88 23 and r24, r24 |
| 6da: a1 f1 breq .+104 ; 0x744 <move_window+0x9a> |
| if (disk_write(0, fs->win, wsect, 1) != RES_OK) |
| 6dc: 80 e2 ldi r24, 0x20 ; 32 |
| 6de: 68 2e mov r6, r24 |
| 6e0: 71 2c mov r7, r1 |
| 6e2: 6c 0e add r6, r28 |
| 6e4: 7d 1e adc r7, r29 |
| 6e6: 01 e0 ldi r16, 0x01 ; 1 |
| 6e8: a7 01 movw r20, r14 |
| 6ea: 96 01 movw r18, r12 |
| 6ec: b3 01 movw r22, r6 |
| 6ee: 80 e0 ldi r24, 0x00 ; 0 |
| 6f0: 0e 94 d3 0e call 0x1da6 ; 0x1da6 <disk_write> |
| 6f4: 89 2b or r24, r25 |
| 6f6: d9 f5 brne .+118 ; 0x76e <move_window+0xc4> |
| return FALSE; |
| fs->winflag = 0; |
| 6f8: 1f 8e std Y+31, r1 ; 0x1f |
| if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */ |
| 6fa: 8c 89 ldd r24, Y+20 ; 0x14 |
| 6fc: 9d 89 ldd r25, Y+21 ; 0x15 |
| 6fe: aa 27 eor r26, r26 |
| 700: bb 27 eor r27, r27 |
| 702: 28 85 ldd r18, Y+8 ; 0x08 |
| 704: 39 85 ldd r19, Y+9 ; 0x09 |
| 706: 4a 85 ldd r20, Y+10 ; 0x0a |
| 708: 5b 85 ldd r21, Y+11 ; 0x0b |
| 70a: 82 0f add r24, r18 |
| 70c: 93 1f adc r25, r19 |
| 70e: a4 1f adc r26, r20 |
| 710: b5 1f adc r27, r21 |
| 712: c8 16 cp r12, r24 |
| 714: d9 06 cpc r13, r25 |
| 716: ea 06 cpc r14, r26 |
| 718: fb 06 cpc r15, r27 |
| 71a: a0 f4 brcc .+40 ; 0x744 <move_window+0x9a> |
| for (n = fs->n_fats; n >= 2; n--) { /* Refrect the change to all FAT copies */ |
| 71c: 1e 8d ldd r17, Y+30 ; 0x1e |
| 71e: 10 c0 rjmp .+32 ; 0x740 <move_window+0x96> |
| wsect += fs->sects_fat; |
| 720: 8c 89 ldd r24, Y+20 ; 0x14 |
| 722: 9d 89 ldd r25, Y+21 ; 0x15 |
| 724: aa 27 eor r26, r26 |
| 726: bb 27 eor r27, r27 |
| 728: c8 0e add r12, r24 |
| 72a: d9 1e adc r13, r25 |
| 72c: ea 1e adc r14, r26 |
| 72e: fb 1e adc r15, r27 |
| disk_write(0, fs->win, wsect, 1); |
| 730: 01 e0 ldi r16, 0x01 ; 1 |
| 732: a7 01 movw r20, r14 |
| 734: 96 01 movw r18, r12 |
| 736: b3 01 movw r22, r6 |
| 738: 80 e0 ldi r24, 0x00 ; 0 |
| 73a: 0e 94 d3 0e call 0x1da6 ; 0x1da6 <disk_write> |
| if (fs->winflag) { /* Write back dirty window if needed */ |
| if (disk_write(0, fs->win, wsect, 1) != RES_OK) |
| return FALSE; |
| fs->winflag = 0; |
| if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */ |
| for (n = fs->n_fats; n >= 2; n--) { /* Refrect the change to all FAT copies */ |
| 73e: 11 50 subi r17, 0x01 ; 1 |
| 740: 12 30 cpi r17, 0x02 ; 2 |
| 742: 70 f7 brcc .-36 ; 0x720 <move_window+0x76> |
| disk_write(0, fs->win, wsect, 1); |
| } |
| } |
| } |
| #endif |
| if (sector) { |
| 744: 81 14 cp r8, r1 |
| 746: 91 04 cpc r9, r1 |
| 748: a1 04 cpc r10, r1 |
| 74a: b1 04 cpc r11, r1 |
| 74c: 99 f0 breq .+38 ; 0x774 <move_window+0xca> |
| if (disk_read(0, fs->win, sector, 1) != RES_OK) |
| 74e: be 01 movw r22, r28 |
| 750: 60 5e subi r22, 0xE0 ; 224 |
| 752: 7f 4f sbci r23, 0xFF ; 255 |
| 754: 01 e0 ldi r16, 0x01 ; 1 |
| 756: a5 01 movw r20, r10 |
| 758: 94 01 movw r18, r8 |
| 75a: 80 e0 ldi r24, 0x00 ; 0 |
| 75c: 0e 94 51 0f call 0x1ea2 ; 0x1ea2 <disk_read> |
| 760: 89 2b or r24, r25 |
| 762: 29 f4 brne .+10 ; 0x76e <move_window+0xc4> |
| return FALSE; |
| fs->winsect = sector; |
| 764: 8c 82 std Y+4, r8 ; 0x04 |
| 766: 9d 82 std Y+5, r9 ; 0x05 |
| 768: ae 82 std Y+6, r10 ; 0x06 |
| 76a: bf 82 std Y+7, r11 ; 0x07 |
| 76c: 03 c0 rjmp .+6 ; 0x774 <move_window+0xca> |
| 76e: 80 e0 ldi r24, 0x00 ; 0 |
| 770: 90 e0 ldi r25, 0x00 ; 0 |
| 772: 02 c0 rjmp .+4 ; 0x778 <move_window+0xce> |
| 774: 81 e0 ldi r24, 0x01 ; 1 |
| 776: 90 e0 ldi r25, 0x00 ; 0 |
| 778: ee e0 ldi r30, 0x0E ; 14 |
| 77a: cd b7 in r28, 0x3d ; 61 |
| 77c: de b7 in r29, 0x3e ; 62 |
| 77e: 0c 94 4a 11 jmp 0x2294 ; 0x2294 <__epilogue_restores__+0x8> |
| 00000782 <put_cluster>: |
| static |
| BOOL put_cluster ( /* TRUE: successful, FALSE: failed */ |
| CLUST clust, /* Cluster# to change */ |
| CLUST val /* New value to mark the cluster */ |
| ) |
| { |
| 782: a0 e0 ldi r26, 0x00 ; 0 |
| 784: b0 e0 ldi r27, 0x00 ; 0 |
| 786: e7 ec ldi r30, 0xC7 ; 199 |
| 788: f3 e0 ldi r31, 0x03 ; 3 |
| 78a: 0c 94 2d 11 jmp 0x225a ; 0x225a <__prologue_saves__+0x6> |
| 78e: ec 01 movw r28, r24 |
| 790: 5b 01 movw r10, r22 |
| WORD bc; |
| BYTE *p; |
| DWORD fatsect; |
| FATFS *fs = FatFs; |
| 792: 80 90 0a 01 lds r8, 0x010A |
| 796: 90 90 0b 01 lds r9, 0x010B |
| fatsect = fs->fatbase; |
| 79a: f4 01 movw r30, r8 |
| 79c: c0 84 ldd r12, Z+8 ; 0x08 |
| 79e: d1 84 ldd r13, Z+9 ; 0x09 |
| 7a0: e2 84 ldd r14, Z+10 ; 0x0a |
| 7a2: f3 84 ldd r15, Z+11 ; 0x0b |
| switch (fs->fs_type) { |
| 7a4: 84 8d ldd r24, Z+28 ; 0x1c |
| 7a6: 81 30 cpi r24, 0x01 ; 1 |
| 7a8: 21 f0 breq .+8 ; 0x7b2 <put_cluster+0x30> |
| 7aa: 82 30 cpi r24, 0x02 ; 2 |
| 7ac: 09 f0 breq .+2 ; 0x7b0 <put_cluster+0x2e> |
| 7ae: 70 c0 rjmp .+224 ; 0x890 <put_cluster+0x10e> |
| 7b0: 56 c0 rjmp .+172 ; 0x85e <put_cluster+0xdc> |
| case FS_FAT12 : |
| bc = (WORD)clust * 3 / 2; |
| 7b2: 8e 01 movw r16, r28 |
| 7b4: 00 0f add r16, r16 |
| 7b6: 11 1f adc r17, r17 |
| 7b8: 0c 0f add r16, r28 |
| 7ba: 1d 1f adc r17, r29 |
| 7bc: 16 95 lsr r17 |
| 7be: 07 95 ror r16 |
| if (!move_window(fatsect + bc / 512)) return FALSE; |
| 7c0: b8 01 movw r22, r16 |
| 7c2: 67 2f mov r22, r23 |
| 7c4: 77 27 eor r23, r23 |
| 7c6: 66 95 lsr r22 |
| 7c8: 88 27 eor r24, r24 |
| 7ca: 99 27 eor r25, r25 |
| 7cc: 6c 0d add r22, r12 |
| 7ce: 7d 1d adc r23, r13 |
| 7d0: 8e 1d adc r24, r14 |
| 7d2: 9f 1d adc r25, r15 |
| 7d4: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 7d8: 88 23 and r24, r24 |
| 7da: 09 f4 brne .+2 ; 0x7de <put_cluster+0x5c> |
| 7dc: 59 c0 rjmp .+178 ; 0x890 <put_cluster+0x10e> |
| p = &fs->win[bc % 512]; |
| 7de: 60 e2 ldi r22, 0x20 ; 32 |
| 7e0: 66 2e mov r6, r22 |
| 7e2: 71 2c mov r7, r1 |
| 7e4: 68 0c add r6, r8 |
| 7e6: 79 1c adc r7, r9 |
| 7e8: f8 01 movw r30, r16 |
| 7ea: f1 70 andi r31, 0x01 ; 1 |
| 7ec: e6 0d add r30, r6 |
| 7ee: f7 1d adc r31, r7 |
| *p = (clust & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; |
| 7f0: ce 01 movw r24, r28 |
| 7f2: 81 70 andi r24, 0x01 ; 1 |
| 7f4: 90 70 andi r25, 0x00 ; 0 |
| 7f6: 58 2e mov r5, r24 |
| 7f8: 88 23 and r24, r24 |
| 7fa: 39 f0 breq .+14 ; 0x80a <put_cluster+0x88> |
| 7fc: 80 81 ld r24, Z |
| 7fe: 8f 70 andi r24, 0x0F ; 15 |
| 800: 9a 2d mov r25, r10 |
| 802: 92 95 swap r25 |
| 804: 90 7f andi r25, 0xF0 ; 240 |
| 806: 98 2b or r25, r24 |
| 808: 01 c0 rjmp .+2 ; 0x80c <put_cluster+0x8a> |
| 80a: 9a 2d mov r25, r10 |
| 80c: 90 83 st Z, r25 |
| bc++; |
| 80e: e8 01 movw r28, r16 |
| 810: 21 96 adiw r28, 0x01 ; 1 |
| fs->winflag = 1; |
| 812: 81 e0 ldi r24, 0x01 ; 1 |
| 814: f4 01 movw r30, r8 |
| 816: 87 8f std Z+31, r24 ; 0x1f |
| if (!move_window(fatsect + bc / 512)) return FALSE; |
| 818: be 01 movw r22, r28 |
| 81a: 67 2f mov r22, r23 |
| 81c: 77 27 eor r23, r23 |
| 81e: 66 95 lsr r22 |
| 820: 88 27 eor r24, r24 |
| 822: 99 27 eor r25, r25 |
| 824: 6c 0d add r22, r12 |
| 826: 7d 1d adc r23, r13 |
| 828: 8e 1d adc r24, r14 |
| 82a: 9f 1d adc r25, r15 |
| 82c: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 830: 88 23 and r24, r24 |
| 832: 71 f1 breq .+92 ; 0x890 <put_cluster+0x10e> |
| p = &fs->win[bc % 512]; |
| 834: fe 01 movw r30, r28 |
| 836: f1 70 andi r31, 0x01 ; 1 |
| 838: e6 0d add r30, r6 |
| 83a: f7 1d adc r31, r7 |
| *p = (clust & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); |
| 83c: 55 20 and r5, r5 |
| 83e: 39 f0 breq .+14 ; 0x84e <put_cluster+0xcc> |
| 840: 44 e0 ldi r20, 0x04 ; 4 |
| 842: b6 94 lsr r11 |
| 844: a7 94 ror r10 |
| 846: 4a 95 dec r20 |
| 848: e1 f7 brne .-8 ; 0x842 <put_cluster+0xc0> |
| 84a: 2a 2d mov r18, r10 |
| 84c: 06 c0 rjmp .+12 ; 0x85a <put_cluster+0xd8> |
| 84e: 20 81 ld r18, Z |
| 850: 20 7f andi r18, 0xF0 ; 240 |
| 852: 8b 2d mov r24, r11 |
| 854: 99 27 eor r25, r25 |
| 856: 8f 70 andi r24, 0x0F ; 15 |
| 858: 28 2b or r18, r24 |
| 85a: 20 83 st Z, r18 |
| 85c: 13 c0 rjmp .+38 ; 0x884 <put_cluster+0x102> |
| break; |
| case FS_FAT16 : |
| if (!move_window(fatsect + clust / 256)) return FALSE; |
| 85e: 6d 2f mov r22, r29 |
| 860: 77 27 eor r23, r23 |
| 862: 88 27 eor r24, r24 |
| 864: 99 27 eor r25, r25 |
| 866: 6c 0d add r22, r12 |
| 868: 7d 1d adc r23, r13 |
| 86a: 8e 1d adc r24, r14 |
| 86c: 9f 1d adc r25, r15 |
| 86e: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 872: 88 23 and r24, r24 |
| 874: 69 f0 breq .+26 ; 0x890 <put_cluster+0x10e> |
| ST_WORD(&fs->win[((WORD)clust * 2) % 512], (WORD)val); |
| 876: cc 0f add r28, r28 |
| 878: dd 1f adc r29, r29 |
| 87a: d1 70 andi r29, 0x01 ; 1 |
| 87c: c8 0d add r28, r8 |
| 87e: d9 1d adc r29, r9 |
| 880: b9 a2 std Y+33, r11 ; 0x21 |
| 882: a8 a2 std Y+32, r10 ; 0x20 |
| break; |
| #endif |
| default : |
| return FALSE; |
| } |
| fs->winflag = 1; |
| 884: 81 e0 ldi r24, 0x01 ; 1 |
| 886: f4 01 movw r30, r8 |
| 888: 87 8f std Z+31, r24 ; 0x1f |
| 88a: 81 e0 ldi r24, 0x01 ; 1 |
| 88c: 90 e0 ldi r25, 0x00 ; 0 |
| 88e: 02 c0 rjmp .+4 ; 0x894 <put_cluster+0x112> |
| return TRUE; |
| 890: 80 e0 ldi r24, 0x00 ; 0 |
| 892: 90 e0 ldi r25, 0x00 ; 0 |
| 894: ef e0 ldi r30, 0x0F ; 15 |
| 896: cd b7 in r28, 0x3d ; 61 |
| 898: de b7 in r29, 0x3e ; 62 |
| 89a: 0c 94 49 11 jmp 0x2292 ; 0x2292 <__epilogue_restores__+0x6> |
| 0000089e <get_cluster>: |
| static |
| CLUST get_cluster ( /* 0,>=2: successful, 1: failed */ |
| CLUST clust /* Cluster# to get the link information */ |
| ) |
| { |
| 89e: a0 e0 ldi r26, 0x00 ; 0 |
| 8a0: b0 e0 ldi r27, 0x00 ; 0 |
| 8a2: e5 e5 ldi r30, 0x55 ; 85 |
| 8a4: f4 e0 ldi r31, 0x04 ; 4 |
| 8a6: 0c 94 31 11 jmp 0x2262 ; 0x2262 <__prologue_saves__+0xe> |
| 8aa: 8c 01 movw r16, r24 |
| WORD wc, bc; |
| DWORD fatsect; |
| FATFS *fs = FatFs; |
| 8ac: e0 90 0a 01 lds r14, 0x010A |
| 8b0: f0 90 0b 01 lds r15, 0x010B |
| if (clust >= 2 && clust < fs->max_clust) { /* Valid cluster# */ |
| 8b4: 02 97 sbiw r24, 0x02 ; 2 |
| 8b6: 08 f4 brcc .+2 ; 0x8ba <get_cluster+0x1c> |
| 8b8: 67 c0 rjmp .+206 ; 0x988 <get_cluster+0xea> |
| 8ba: f7 01 movw r30, r14 |
| 8bc: 86 89 ldd r24, Z+22 ; 0x16 |
| 8be: 97 89 ldd r25, Z+23 ; 0x17 |
| 8c0: 08 17 cp r16, r24 |
| 8c2: 19 07 cpc r17, r25 |
| 8c4: 08 f0 brcs .+2 ; 0x8c8 <get_cluster+0x2a> |
| 8c6: 60 c0 rjmp .+192 ; 0x988 <get_cluster+0xea> |
| fatsect = fs->fatbase; |
| 8c8: a0 84 ldd r10, Z+8 ; 0x08 |
| 8ca: b1 84 ldd r11, Z+9 ; 0x09 |
| 8cc: c2 84 ldd r12, Z+10 ; 0x0a |
| 8ce: d3 84 ldd r13, Z+11 ; 0x0b |
| switch (fs->fs_type) { |
| 8d0: 84 8d ldd r24, Z+28 ; 0x1c |
| 8d2: 81 30 cpi r24, 0x01 ; 1 |
| 8d4: 21 f0 breq .+8 ; 0x8de <get_cluster+0x40> |
| 8d6: 82 30 cpi r24, 0x02 ; 2 |
| 8d8: 09 f0 breq .+2 ; 0x8dc <get_cluster+0x3e> |
| 8da: 56 c0 rjmp .+172 ; 0x988 <get_cluster+0xea> |
| 8dc: 40 c0 rjmp .+128 ; 0x95e <get_cluster+0xc0> |
| case FS_FAT12 : |
| bc = (WORD)clust * 3 / 2; |
| 8de: e8 01 movw r28, r16 |
| 8e0: cc 0f add r28, r28 |
| 8e2: dd 1f adc r29, r29 |
| 8e4: c0 0f add r28, r16 |
| 8e6: d1 1f adc r29, r17 |
| 8e8: d6 95 lsr r29 |
| 8ea: c7 95 ror r28 |
| if (!move_window(fatsect + bc / 512)) break; |
| 8ec: be 01 movw r22, r28 |
| 8ee: 67 2f mov r22, r23 |
| 8f0: 77 27 eor r23, r23 |
| 8f2: 66 95 lsr r22 |
| 8f4: 88 27 eor r24, r24 |
| 8f6: 99 27 eor r25, r25 |
| 8f8: 6a 0d add r22, r10 |
| 8fa: 7b 1d adc r23, r11 |
| 8fc: 8c 1d adc r24, r12 |
| 8fe: 9d 1d adc r25, r13 |
| 900: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 904: 88 23 and r24, r24 |
| 906: 09 f4 brne .+2 ; 0x90a <get_cluster+0x6c> |
| 908: 3f c0 rjmp .+126 ; 0x988 <get_cluster+0xea> |
| wc = fs->win[bc % 512]; bc++; |
| 90a: fe 01 movw r30, r28 |
| 90c: f1 70 andi r31, 0x01 ; 1 |
| 90e: ee 0d add r30, r14 |
| 910: ff 1d adc r31, r15 |
| 912: 90 a0 ldd r9, Z+32 ; 0x20 |
| 914: 21 96 adiw r28, 0x01 ; 1 |
| if (!move_window(fatsect + bc / 512)) break; |
| 916: be 01 movw r22, r28 |
| 918: 67 2f mov r22, r23 |
| 91a: 77 27 eor r23, r23 |
| 91c: 66 95 lsr r22 |
| 91e: 88 27 eor r24, r24 |
| 920: 99 27 eor r25, r25 |
| 922: 6a 0d add r22, r10 |
| 924: 7b 1d adc r23, r11 |
| 926: 8c 1d adc r24, r12 |
| 928: 9d 1d adc r25, r13 |
| 92a: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 92e: 88 23 and r24, r24 |
| 930: 59 f1 breq .+86 ; 0x988 <get_cluster+0xea> |
| fatsect = fs->fatbase; |
| switch (fs->fs_type) { |
| case FS_FAT12 : |
| bc = (WORD)clust * 3 / 2; |
| if (!move_window(fatsect + bc / 512)) break; |
| wc = fs->win[bc % 512]; bc++; |
| 932: 29 2d mov r18, r9 |
| 934: 33 27 eor r19, r19 |
| if (!move_window(fatsect + bc / 512)) break; |
| wc |= (WORD)fs->win[bc % 512] << 8; |
| 936: d1 70 andi r29, 0x01 ; 1 |
| 938: ec 0e add r14, r28 |
| 93a: fd 1e adc r15, r29 |
| 93c: f7 01 movw r30, r14 |
| 93e: 80 a1 ldd r24, Z+32 ; 0x20 |
| 940: 99 27 eor r25, r25 |
| 942: 98 2f mov r25, r24 |
| 944: 88 27 eor r24, r24 |
| 946: 82 2b or r24, r18 |
| 948: 93 2b or r25, r19 |
| return (clust & 1) ? (wc >> 4) : (wc & 0xFFF); |
| 94a: 00 ff sbrs r16, 0 |
| 94c: 06 c0 rjmp .+12 ; 0x95a <get_cluster+0xbc> |
| 94e: 24 e0 ldi r18, 0x04 ; 4 |
| 950: 96 95 lsr r25 |
| 952: 87 95 ror r24 |
| 954: 2a 95 dec r18 |
| 956: e1 f7 brne .-8 ; 0x950 <get_cluster+0xb2> |
| 958: 19 c0 rjmp .+50 ; 0x98c <get_cluster+0xee> |
| 95a: 9f 70 andi r25, 0x0F ; 15 |
| 95c: 17 c0 rjmp .+46 ; 0x98c <get_cluster+0xee> |
| case FS_FAT16 : |
| if (!move_window(fatsect + clust / 256)) break; |
| 95e: 61 2f mov r22, r17 |
| 960: 77 27 eor r23, r23 |
| 962: 88 27 eor r24, r24 |
| 964: 99 27 eor r25, r25 |
| 966: 6a 0d add r22, r10 |
| 968: 7b 1d adc r23, r11 |
| 96a: 8c 1d adc r24, r12 |
| 96c: 9d 1d adc r25, r13 |
| 96e: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 972: 88 23 and r24, r24 |
| 974: 49 f0 breq .+18 ; 0x988 <get_cluster+0xea> |
| return LD_WORD(&fs->win[((WORD)clust * 2) % 512]); |
| 976: 00 0f add r16, r16 |
| 978: 11 1f adc r17, r17 |
| 97a: 11 70 andi r17, 0x01 ; 1 |
| 97c: e0 0e add r14, r16 |
| 97e: f1 1e adc r15, r17 |
| 980: f7 01 movw r30, r14 |
| 982: 80 a1 ldd r24, Z+32 ; 0x20 |
| 984: 91 a1 ldd r25, Z+33 ; 0x21 |
| 986: 02 c0 rjmp .+4 ; 0x98c <get_cluster+0xee> |
| 988: 81 e0 ldi r24, 0x01 ; 1 |
| 98a: 90 e0 ldi r25, 0x00 ; 0 |
| 98c: eb e0 ldi r30, 0x0B ; 11 |
| 98e: cd b7 in r28, 0x3d ; 61 |
| 990: de b7 in r29, 0x3e ; 62 |
| 992: 0c 94 4d 11 jmp 0x229a ; 0x229a <__epilogue_restores__+0xe> |
| 00000996 <next_dir_entry>: |
| static |
| BOOL next_dir_entry ( /* TRUE: successful, FALSE: could not move next */ |
| DIR *dirobj /* Pointer to directory object */ |
| ) |
| { |
| 996: ef 92 push r14 |
| 998: ff 92 push r15 |
| 99a: 0f 93 push r16 |
| 99c: 1f 93 push r17 |
| 99e: cf 93 push r28 |
| 9a0: df 93 push r29 |
| 9a2: ec 01 movw r28, r24 |
| CLUST clust; |
| WORD idx; |
| FATFS *fs = FatFs; |
| 9a4: e0 90 0a 01 lds r14, 0x010A |
| 9a8: f0 90 0b 01 lds r15, 0x010B |
| idx = dirobj->index + 1; |
| 9ac: 0a 81 ldd r16, Y+2 ; 0x02 |
| 9ae: 1b 81 ldd r17, Y+3 ; 0x03 |
| 9b0: 0f 5f subi r16, 0xFF ; 255 |
| 9b2: 1f 4f sbci r17, 0xFF ; 255 |
| if ((idx & 15) == 0) { /* Table sector changed? */ |
| 9b4: c8 01 movw r24, r16 |
| 9b6: 8f 70 andi r24, 0x0F ; 15 |
| 9b8: 90 70 andi r25, 0x00 ; 0 |
| 9ba: 89 2b or r24, r25 |
| 9bc: d1 f5 brne .+116 ; 0xa32 <next_dir_entry+0x9c> |
| dirobj->sect++; /* Next sector */ |
| 9be: 8a 85 ldd r24, Y+10 ; 0x0a |
| 9c0: 9b 85 ldd r25, Y+11 ; 0x0b |
| 9c2: ac 85 ldd r26, Y+12 ; 0x0c |
| 9c4: bd 85 ldd r27, Y+13 ; 0x0d |
| 9c6: 01 96 adiw r24, 0x01 ; 1 |
| 9c8: a1 1d adc r26, r1 |
| 9ca: b1 1d adc r27, r1 |
| 9cc: 8a 87 std Y+10, r24 ; 0x0a |
| 9ce: 9b 87 std Y+11, r25 ; 0x0b |
| 9d0: ac 87 std Y+12, r26 ; 0x0c |
| 9d2: bd 87 std Y+13, r27 ; 0x0d |
| if (!dirobj->clust) { /* In static table */ |
| 9d4: 48 85 ldd r20, Y+8 ; 0x08 |
| 9d6: 59 85 ldd r21, Y+9 ; 0x09 |
| 9d8: 41 15 cp r20, r1 |
| 9da: 51 05 cpc r21, r1 |
| 9dc: 39 f4 brne .+14 ; 0x9ec <next_dir_entry+0x56> |
| if (idx >= fs->n_rootdir) return FALSE; /* Reached to end of table */ |
| 9de: f7 01 movw r30, r14 |
| 9e0: 82 81 ldd r24, Z+2 ; 0x02 |
| 9e2: 93 81 ldd r25, Z+3 ; 0x03 |
| 9e4: 08 17 cp r16, r24 |
| 9e6: 19 07 cpc r17, r25 |
| 9e8: 20 f1 brcs .+72 ; 0xa32 <next_dir_entry+0x9c> |
| 9ea: 28 c0 rjmp .+80 ; 0xa3c <next_dir_entry+0xa6> |
| } else { /* In dynamic table */ |
| if (((idx / 16) & (fs->sects_clust - 1)) == 0) { /* Cluster changed? */ |
| 9ec: f7 01 movw r30, r14 |
| 9ee: 85 8d ldd r24, Z+29 ; 0x1d |
| 9f0: 99 27 eor r25, r25 |
| 9f2: 01 97 sbiw r24, 0x01 ; 1 |
| 9f4: 98 01 movw r18, r16 |
| 9f6: b4 e0 ldi r27, 0x04 ; 4 |
| 9f8: 36 95 lsr r19 |
| 9fa: 27 95 ror r18 |
| 9fc: ba 95 dec r27 |
| 9fe: e1 f7 brne .-8 ; 0x9f8 <next_dir_entry+0x62> |
| a00: 82 23 and r24, r18 |
| a02: 93 23 and r25, r19 |
| a04: 89 2b or r24, r25 |
| a06: a9 f4 brne .+42 ; 0xa32 <next_dir_entry+0x9c> |
| clust = get_cluster(dirobj->clust); /* Get next cluster */ |
| a08: ca 01 movw r24, r20 |
| a0a: 0e 94 4f 04 call 0x89e ; 0x89e <get_cluster> |
| a0e: 9c 01 movw r18, r24 |
| if (clust < 2 || clust >= fs->max_clust) /* Reached to end of table */ |
| a10: 02 97 sbiw r24, 0x02 ; 2 |
| a12: a0 f0 brcs .+40 ; 0xa3c <next_dir_entry+0xa6> |
| a14: f7 01 movw r30, r14 |
| a16: 86 89 ldd r24, Z+22 ; 0x16 |
| a18: 97 89 ldd r25, Z+23 ; 0x17 |
| a1a: 28 17 cp r18, r24 |
| a1c: 39 07 cpc r19, r25 |
| a1e: 70 f4 brcc .+28 ; 0xa3c <next_dir_entry+0xa6> |
| return FALSE; |
| dirobj->clust = clust; /* Initialize for new cluster */ |
| a20: 39 87 std Y+9, r19 ; 0x09 |
| a22: 28 87 std Y+8, r18 ; 0x08 |
| dirobj->sect = clust2sect(clust); |
| a24: c9 01 movw r24, r18 |
| a26: 0e 94 18 03 call 0x630 ; 0x630 <clust2sect> |
| a2a: 6a 87 std Y+10, r22 ; 0x0a |
| a2c: 7b 87 std Y+11, r23 ; 0x0b |
| a2e: 8c 87 std Y+12, r24 ; 0x0c |
| a30: 9d 87 std Y+13, r25 ; 0x0d |
| } |
| } |
| } |
| dirobj->index = idx; /* Lower 4 bit of dirobj->index indicates offset in dirobj->sect */ |
| a32: 1b 83 std Y+3, r17 ; 0x03 |
| a34: 0a 83 std Y+2, r16 ; 0x02 |
| a36: 81 e0 ldi r24, 0x01 ; 1 |
| a38: 90 e0 ldi r25, 0x00 ; 0 |
| a3a: 02 c0 rjmp .+4 ; 0xa40 <next_dir_entry+0xaa> |
| return TRUE; |
| a3c: 80 e0 ldi r24, 0x00 ; 0 |
| a3e: 90 e0 ldi r25, 0x00 ; 0 |
| a40: e6 e0 ldi r30, 0x06 ; 6 |
| a42: cd b7 in r28, 0x3d ; 61 |
| a44: de b7 in r29, 0x3e ; 62 |
| a46: 0c 94 52 11 jmp 0x22a4 ; 0x22a4 <__epilogue_restores__+0x18> |
| 00000a4a <create_chain>: |
| #if !_FS_READONLY |
| static |
| CLUST create_chain ( /* 0: no free cluster, 1: error, >=2: new cluster number */ |
| CLUST clust /* Cluster# to stretch, 0 means create new */ |
| ) |
| { |
| a4a: a0 e0 ldi r26, 0x00 ; 0 |
| a4c: b0 e0 ldi r27, 0x00 ; 0 |
| a4e: eb e2 ldi r30, 0x2B ; 43 |
| a50: f5 e0 ldi r31, 0x05 ; 5 |
| a52: 0c 94 32 11 jmp 0x2264 ; 0x2264 <__prologue_saves__+0x10> |
| a56: 7c 01 movw r14, r24 |
| CLUST cstat, ncl, scl, mcl; |
| FATFS *fs = FatFs; |
| a58: a0 90 0a 01 lds r10, 0x010A |
| a5c: b0 90 0b 01 lds r11, 0x010B |
| mcl = fs->max_clust; |
| a60: f5 01 movw r30, r10 |
| a62: c6 88 ldd r12, Z+22 ; 0x16 |
| a64: d7 88 ldd r13, Z+23 ; 0x17 |
| if (clust == 0) { /* Create new chain */ |
| a66: 00 97 sbiw r24, 0x00 ; 0 |
| a68: 49 f4 brne .+18 ; 0xa7c <create_chain+0x32> |
| scl = fs->last_clust; /* Get last allocated cluster */ |
| a6a: 00 8d ldd r16, Z+24 ; 0x18 |
| a6c: 11 8d ldd r17, Z+25 ; 0x19 |
| if (scl < 2 || scl >= mcl) scl = 1; |
| a6e: 02 30 cpi r16, 0x02 ; 2 |
| a70: 11 05 cpc r17, r1 |
| a72: 80 f0 brcs .+32 ; 0xa94 <create_chain+0x4a> |
| a74: 0c 15 cp r16, r12 |
| a76: 1d 05 cpc r17, r13 |
| a78: 68 f4 brcc .+26 ; 0xa94 <create_chain+0x4a> |
| a7a: 0e c0 rjmp .+28 ; 0xa98 <create_chain+0x4e> |
| } |
| else { /* Stretch existing chain */ |
| cstat = get_cluster(clust); /* Check the cluster status */ |
| a7c: 0e 94 4f 04 call 0x89e ; 0x89e <get_cluster> |
| if (cstat < 2) return 1; /* It is an invalid cluster */ |
| a80: 82 30 cpi r24, 0x02 ; 2 |
| a82: 91 05 cpc r25, r1 |
| a84: e8 f1 brcs .+122 ; 0xb00 <create_chain+0xb6> |
| if (cstat < mcl) return cstat; /* It is already followed by next cluster */ |
| a86: 8c 15 cp r24, r12 |
| a88: 9d 05 cpc r25, r13 |
| a8a: 10 f4 brcc .+4 ; 0xa90 <create_chain+0x46> |
| a8c: bc 01 movw r22, r24 |
| a8e: 3d c0 rjmp .+122 ; 0xb0a <create_chain+0xc0> |
| a90: 87 01 movw r16, r14 |
| a92: 02 c0 rjmp .+4 ; 0xa98 <create_chain+0x4e> |
| a94: 01 e0 ldi r16, 0x01 ; 1 |
| a96: 10 e0 ldi r17, 0x00 ; 0 |
| a98: e8 01 movw r28, r16 |
| scl = clust; |
| } |
| ncl = scl; /* Start cluster */ |
| for (;;) { |
| ncl++; /* Next cluster */ |
| a9a: 21 96 adiw r28, 0x01 ; 1 |
| if (ncl >= mcl) { /* Wrap around */ |
| a9c: cc 15 cp r28, r12 |
| a9e: dd 05 cpc r29, r13 |
| aa0: 28 f0 brcs .+10 ; 0xaac <create_chain+0x62> |
| ncl = 2; |
| if (ncl > scl) return 0; /* No free custer */ |
| aa2: 02 30 cpi r16, 0x02 ; 2 |
| aa4: 11 05 cpc r17, r1 |
| aa6: 78 f1 brcs .+94 ; 0xb06 <create_chain+0xbc> |
| aa8: c2 e0 ldi r28, 0x02 ; 2 |
| aaa: d0 e0 ldi r29, 0x00 ; 0 |
| } |
| cstat = get_cluster(ncl); /* Get the cluster status */ |
| aac: ce 01 movw r24, r28 |
| aae: 0e 94 4f 04 call 0x89e ; 0x89e <get_cluster> |
| if (cstat == 0) break; /* Found a free cluster */ |
| ab2: 00 97 sbiw r24, 0x00 ; 0 |
| ab4: 31 f0 breq .+12 ; 0xac2 <create_chain+0x78> |
| if (cstat == 1) return 1; /* Any error occured */ |
| ab6: 01 97 sbiw r24, 0x01 ; 1 |
| ab8: 19 f1 breq .+70 ; 0xb00 <create_chain+0xb6> |
| if (ncl == scl) return 0; /* No free custer */ |
| aba: c0 17 cp r28, r16 |
| abc: d1 07 cpc r29, r17 |
| abe: 19 f1 breq .+70 ; 0xb06 <create_chain+0xbc> |
| ac0: ec cf rjmp .-40 ; 0xa9a <create_chain+0x50> |
| } |
| if (!put_cluster(ncl, (CLUST)0x0FFFFFFF)) return 1; /* Mark the new cluster "in use" */ |
| ac2: 6f ef ldi r22, 0xFF ; 255 |
| ac4: 7f ef ldi r23, 0xFF ; 255 |
| ac6: ce 01 movw r24, r28 |
| ac8: 0e 94 c1 03 call 0x782 ; 0x782 <put_cluster> |
| acc: 88 23 and r24, r24 |
| ace: c1 f0 breq .+48 ; 0xb00 <create_chain+0xb6> |
| if (clust && !put_cluster(clust, ncl)) return 1; /* Link it to previous one if needed */ |
| ad0: e1 14 cp r14, r1 |
| ad2: f1 04 cpc r15, r1 |
| ad4: 31 f0 breq .+12 ; 0xae2 <create_chain+0x98> |
| ad6: be 01 movw r22, r28 |
| ad8: c7 01 movw r24, r14 |
| ada: 0e 94 c1 03 call 0x782 ; 0x782 <put_cluster> |
| ade: 88 23 and r24, r24 |
| ae0: 79 f0 breq .+30 ; 0xb00 <create_chain+0xb6> |
| fs->last_clust = ncl; /* Update fsinfo */ |
| ae2: f5 01 movw r30, r10 |
| ae4: d1 8f std Z+25, r29 ; 0x19 |
| ae6: c0 8f std Z+24, r28 ; 0x18 |
| if (fs->free_clust != (CLUST)0xFFFFFFFF) { |
| ae8: 82 8d ldd r24, Z+26 ; 0x1a |
| aea: 93 8d ldd r25, Z+27 ; 0x1b |
| aec: ff ef ldi r31, 0xFF ; 255 |
| aee: 8f 3f cpi r24, 0xFF ; 255 |
| af0: 9f 07 cpc r25, r31 |
| af2: 21 f0 breq .+8 ; 0xafc <create_chain+0xb2> |
| fs->free_clust--; |
| af4: 01 97 sbiw r24, 0x01 ; 1 |
| af6: f5 01 movw r30, r10 |
| af8: 93 8f std Z+27, r25 ; 0x1b |
| afa: 82 8f std Z+26, r24 ; 0x1a |
| afc: be 01 movw r22, r28 |
| afe: 05 c0 rjmp .+10 ; 0xb0a <create_chain+0xc0> |
| b00: 61 e0 ldi r22, 0x01 ; 1 |
| b02: 70 e0 ldi r23, 0x00 ; 0 |
| b04: 02 c0 rjmp .+4 ; 0xb0a <create_chain+0xc0> |
| b06: 60 e0 ldi r22, 0x00 ; 0 |
| b08: 70 e0 ldi r23, 0x00 ; 0 |
| fs->fsi_flag = 1; |
| #endif |
| } |
| return ncl; /* Return new cluster number */ |
| } |
| b0a: cb 01 movw r24, r22 |
| b0c: ea e0 ldi r30, 0x0A ; 10 |
| b0e: cd b7 in r28, 0x3d ; 61 |
| b10: de b7 in r29, 0x3e ; 62 |
| b12: 0c 94 4e 11 jmp 0x229c ; 0x229c <__epilogue_restores__+0x10> |
| 00000b16 <f_lseek>: |
| FRESULT f_lseek ( |
| FIL *fp, /* Pointer to the file object */ |
| DWORD ofs /* File pointer from top of file */ |
| ) |
| { |
| b16: a0 e0 ldi r26, 0x00 ; 0 |
| b18: b0 e0 ldi r27, 0x00 ; 0 |
| b1a: e1 e9 ldi r30, 0x91 ; 145 |
| b1c: f5 e0 ldi r31, 0x05 ; 5 |
| b1e: 0c 94 2a 11 jmp 0x2254 ; 0x2254 <__prologue_saves__> |
| b22: ec 01 movw r28, r24 |
| b24: 3a 01 movw r6, r20 |
| b26: 4b 01 movw r8, r22 |
| CLUST clust; |
| DWORD csize; |
| BYTE csect; |
| FRESULT res; |
| FATFS *fs = fp->fs; |
| b28: 4c 80 ldd r4, Y+4 ; 0x04 |
| b2a: 5d 80 ldd r5, Y+5 ; 0x05 |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| b2c: 68 81 ld r22, Y |
| b2e: 79 81 ldd r23, Y+1 ; 0x01 |
| b30: c2 01 movw r24, r4 |
| b32: 0e 94 43 03 call 0x686 ; 0x686 <validate> |
| b36: 1c 01 movw r2, r24 |
| if (res) return res; |
| b38: 89 2b or r24, r25 |
| b3a: 09 f0 breq .+2 ; 0xb3e <f_lseek+0x28> |
| b3c: b8 c0 rjmp .+368 ; 0xcae <f_lseek+0x198> |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; |
| b3e: 2a 81 ldd r18, Y+2 ; 0x02 |
| b40: 22 23 and r18, r18 |
| b42: 0c f4 brge .+2 ; 0xb46 <f_lseek+0x30> |
| b44: b1 c0 rjmp .+354 ; 0xca8 <f_lseek+0x192> |
| #if !_FS_READONLY |
| if (ofs > fp->fsize && !(fp->flag & FA_WRITE)) |
| b46: 8a 85 ldd r24, Y+10 ; 0x0a |
| b48: 9b 85 ldd r25, Y+11 ; 0x0b |
| b4a: ac 85 ldd r26, Y+12 ; 0x0c |
| b4c: bd 85 ldd r27, Y+13 ; 0x0d |
| b4e: 86 15 cp r24, r6 |
| b50: 97 05 cpc r25, r7 |
| b52: a8 05 cpc r26, r8 |
| b54: b9 05 cpc r27, r9 |
| b56: 20 f4 brcc .+8 ; 0xb60 <f_lseek+0x4a> |
| b58: 21 fd sbrc r18, 1 |
| b5a: 02 c0 rjmp .+4 ; 0xb60 <f_lseek+0x4a> |
| b5c: 3c 01 movw r6, r24 |
| b5e: 4d 01 movw r8, r26 |
| #else |
| if (ofs > fp->fsize) |
| #endif |
| ofs = fp->fsize; |
| fp->fptr = 0; fp->sect_clust = 1; /* Set file R/W pointer to top of the file */ |
| b60: 1e 82 std Y+6, r1 ; 0x06 |
| b62: 1f 82 std Y+7, r1 ; 0x07 |
| b64: 18 86 std Y+8, r1 ; 0x08 |
| b66: 19 86 std Y+9, r1 ; 0x09 |
| b68: 81 e0 ldi r24, 0x01 ; 1 |
| b6a: 8b 83 std Y+3, r24 ; 0x03 |
| /* Move file R/W pointer if needed */ |
| if (ofs) { |
| b6c: 61 14 cp r6, r1 |
| b6e: 71 04 cpc r7, r1 |
| b70: 81 04 cpc r8, r1 |
| b72: 91 04 cpc r9, r1 |
| b74: 09 f4 brne .+2 ; 0xb78 <f_lseek+0x62> |
| b76: 7e c0 rjmp .+252 ; 0xc74 <f_lseek+0x15e> |
| clust = fp->org_clust; /* Get start cluster */ |
| b78: 2e 85 ldd r18, Y+14 ; 0x0e |
| b7a: 3f 85 ldd r19, Y+15 ; 0x0f |
| #if !_FS_READONLY |
| if (!clust) { /* If the file does not have a cluster chain, create new cluster chain */ |
| b7c: 21 15 cp r18, r1 |
| b7e: 31 05 cpc r19, r1 |
| b80: 71 f4 brne .+28 ; 0xb9e <f_lseek+0x88> |
| clust = create_chain(0); |
| b82: 80 e0 ldi r24, 0x00 ; 0 |
| b84: 90 e0 ldi r25, 0x00 ; 0 |
| b86: 0e 94 25 05 call 0xa4a ; 0xa4a <create_chain> |
| b8a: 9c 01 movw r18, r24 |
| if (clust == 1) goto fk_error; |
| b8c: 81 30 cpi r24, 0x01 ; 1 |
| b8e: 91 05 cpc r25, r1 |
| b90: 09 f4 brne .+2 ; 0xb94 <f_lseek+0x7e> |
| b92: 87 c0 rjmp .+270 ; 0xca2 <f_lseek+0x18c> |
| fp->org_clust = clust; |
| b94: 9f 87 std Y+15, r25 ; 0x0f |
| b96: 8e 87 std Y+14, r24 ; 0x0e |
| } |
| #endif |
| if (clust) { /* If the file has a cluster chain, it can be followed */ |
| b98: 89 2b or r24, r25 |
| b9a: 09 f4 brne .+2 ; 0xb9e <f_lseek+0x88> |
| b9c: 6b c0 rjmp .+214 ; 0xc74 <f_lseek+0x15e> |
| csize = (DWORD)fs->sects_clust * 512; /* Cluster size in unit of byte */ |
| b9e: f2 01 movw r30, r4 |
| ba0: 85 8d ldd r24, Z+29 ; 0x1d |
| ba2: e8 2e mov r14, r24 |
| ba4: ff 24 eor r15, r15 |
| ba6: 00 27 eor r16, r16 |
| ba8: 11 27 eor r17, r17 |
| baa: 89 e0 ldi r24, 0x09 ; 9 |
| bac: ee 0c add r14, r14 |
| bae: ff 1c adc r15, r15 |
| bb0: 00 1f adc r16, r16 |
| bb2: 11 1f adc r17, r17 |
| bb4: 8a 95 dec r24 |
| bb6: d1 f7 brne .-12 ; 0xbac <f_lseek+0x96> |
| for (;;) { /* Loop to skip leading clusters */ |
| fp->curr_clust = clust; /* Update current cluster */ |
| bb8: 39 8b std Y+17, r19 ; 0x11 |
| bba: 28 8b std Y+16, r18 ; 0x10 |
| if (ofs <= csize) break; |
| bbc: e6 14 cp r14, r6 |
| bbe: f7 04 cpc r15, r7 |
| bc0: 08 05 cpc r16, r8 |
| bc2: 19 05 cpc r17, r9 |
| bc4: 50 f5 brcc .+84 ; 0xc1a <f_lseek+0x104> |
| #if !_FS_READONLY |
| if (fp->flag & FA_WRITE) /* Check if in write mode or not */ |
| bc6: 8a 81 ldd r24, Y+2 ; 0x02 |
| bc8: 81 ff sbrs r24, 1 |
| bca: 04 c0 rjmp .+8 ; 0xbd4 <f_lseek+0xbe> |
| clust = create_chain(clust); /* Force streached if in write mode */ |
| bcc: c9 01 movw r24, r18 |
| bce: 0e 94 25 05 call 0xa4a ; 0xa4a <create_chain> |
| bd2: 03 c0 rjmp .+6 ; 0xbda <f_lseek+0xc4> |
| else |
| #endif |
| clust = get_cluster(clust); /* Only follow cluster chain if not in write mode */ |
| bd4: c9 01 movw r24, r18 |
| bd6: 0e 94 4f 04 call 0x89e ; 0x89e <get_cluster> |
| bda: 9c 01 movw r18, r24 |
| if (clust == 0) { /* Stop if could not follow the cluster chain */ |
| bdc: 00 97 sbiw r24, 0x00 ; 0 |
| bde: d9 f0 breq .+54 ; 0xc16 <f_lseek+0x100> |
| ofs = csize; break; |
| } |
| if (clust == 1 || clust >= fs->max_clust) goto fk_error; |
| be0: 01 97 sbiw r24, 0x01 ; 1 |
| be2: 09 f4 brne .+2 ; 0xbe6 <f_lseek+0xd0> |
| be4: 5e c0 rjmp .+188 ; 0xca2 <f_lseek+0x18c> |
| be6: f2 01 movw r30, r4 |
| be8: 86 89 ldd r24, Z+22 ; 0x16 |
| bea: 97 89 ldd r25, Z+23 ; 0x17 |
| bec: 28 17 cp r18, r24 |
| bee: 39 07 cpc r19, r25 |
| bf0: 08 f0 brcs .+2 ; 0xbf4 <f_lseek+0xde> |
| bf2: 57 c0 rjmp .+174 ; 0xca2 <f_lseek+0x18c> |
| fp->fptr += csize; /* Update R/W pointer */ |
| bf4: 8e 81 ldd r24, Y+6 ; 0x06 |
| bf6: 9f 81 ldd r25, Y+7 ; 0x07 |
| bf8: a8 85 ldd r26, Y+8 ; 0x08 |
| bfa: b9 85 ldd r27, Y+9 ; 0x09 |
| bfc: 8e 0d add r24, r14 |
| bfe: 9f 1d adc r25, r15 |
| c00: a0 1f adc r26, r16 |
| c02: b1 1f adc r27, r17 |
| c04: 8e 83 std Y+6, r24 ; 0x06 |
| c06: 9f 83 std Y+7, r25 ; 0x07 |
| c08: a8 87 std Y+8, r26 ; 0x08 |
| c0a: b9 87 std Y+9, r27 ; 0x09 |
| ofs -= csize; |
| c0c: 6e 18 sub r6, r14 |
| c0e: 7f 08 sbc r7, r15 |
| c10: 80 0a sbc r8, r16 |
| c12: 91 0a sbc r9, r17 |
| c14: d1 cf rjmp .-94 ; 0xbb8 <f_lseek+0xa2> |
| } |
| c16: 37 01 movw r6, r14 |
| c18: 48 01 movw r8, r16 |
| csect = (BYTE)((ofs - 1) / 512); /* Sector offset in the cluster */ |
| c1a: 64 01 movw r12, r8 |
| c1c: 53 01 movw r10, r6 |
| c1e: 08 94 sec |
| c20: a1 08 sbc r10, r1 |
| c22: b1 08 sbc r11, r1 |
| c24: c1 08 sbc r12, r1 |
| c26: d1 08 sbc r13, r1 |
| c28: 09 e0 ldi r16, 0x09 ; 9 |
| c2a: d6 94 lsr r13 |
| c2c: c7 94 ror r12 |
| c2e: b7 94 ror r11 |
| c30: a7 94 ror r10 |
| c32: 0a 95 dec r16 |
| c34: d1 f7 brne .-12 ; 0xc2a <f_lseek+0x114> |
| fp->curr_sect = clust2sect(clust) + csect; /* Current sector */ |
| c36: ea 2c mov r14, r10 |
| c38: ff 24 eor r15, r15 |
| c3a: 00 27 eor r16, r16 |
| c3c: 11 27 eor r17, r17 |
| c3e: c9 01 movw r24, r18 |
| c40: 0e 94 18 03 call 0x630 ; 0x630 <clust2sect> |
| c44: e6 0e add r14, r22 |
| c46: f7 1e adc r15, r23 |
| c48: 08 1f adc r16, r24 |
| c4a: 19 1f adc r17, r25 |
| c4c: ea 8a std Y+18, r14 ; 0x12 |
| c4e: fb 8a std Y+19, r15 ; 0x13 |
| c50: 0c 8b std Y+20, r16 ; 0x14 |
| c52: 1d 8b std Y+21, r17 ; 0x15 |
| fp->sect_clust = fs->sects_clust - csect; /* Left sector counter in the cluster */ |
| c54: f2 01 movw r30, r4 |
| c56: 85 8d ldd r24, Z+29 ; 0x1d |
| c58: 8a 19 sub r24, r10 |
| c5a: 8b 83 std Y+3, r24 ; 0x03 |
| fp->fptr += ofs; /* Update file R/W pointer */ |
| c5c: 8e 81 ldd r24, Y+6 ; 0x06 |
| c5e: 9f 81 ldd r25, Y+7 ; 0x07 |
| c60: a8 85 ldd r26, Y+8 ; 0x08 |
| c62: b9 85 ldd r27, Y+9 ; 0x09 |
| c64: 86 0d add r24, r6 |
| c66: 97 1d adc r25, r7 |
| c68: a8 1d adc r26, r8 |
| c6a: b9 1d adc r27, r9 |
| c6c: 8e 83 std Y+6, r24 ; 0x06 |
| c6e: 9f 83 std Y+7, r25 ; 0x07 |
| c70: a8 87 std Y+8, r26 ; 0x08 |
| c72: b9 87 std Y+9, r27 ; 0x09 |
| } |
| } |
| #if !_FS_READONLY |
| if ((fp->flag & FA_WRITE) && fp->fptr > fp->fsize) { /* Set updated flag if in write mode */ |
| c74: 6a 81 ldd r22, Y+2 ; 0x02 |
| c76: 61 ff sbrs r22, 1 |
| c78: 1a c0 rjmp .+52 ; 0xcae <f_lseek+0x198> |
| c7a: 2e 81 ldd r18, Y+6 ; 0x06 |
| c7c: 3f 81 ldd r19, Y+7 ; 0x07 |
| c7e: 48 85 ldd r20, Y+8 ; 0x08 |
| c80: 59 85 ldd r21, Y+9 ; 0x09 |
| c82: 8a 85 ldd r24, Y+10 ; 0x0a |
| c84: 9b 85 ldd r25, Y+11 ; 0x0b |
| c86: ac 85 ldd r26, Y+12 ; 0x0c |
| c88: bd 85 ldd r27, Y+13 ; 0x0d |
| c8a: 82 17 cp r24, r18 |
| c8c: 93 07 cpc r25, r19 |
| c8e: a4 07 cpc r26, r20 |
| c90: b5 07 cpc r27, r21 |
| c92: 68 f4 brcc .+26 ; 0xcae <f_lseek+0x198> |
| fp->fsize = fp->fptr; |
| c94: 2a 87 std Y+10, r18 ; 0x0a |
| c96: 3b 87 std Y+11, r19 ; 0x0b |
| c98: 4c 87 std Y+12, r20 ; 0x0c |
| c9a: 5d 87 std Y+13, r21 ; 0x0d |
| fp->flag |= FA__WRITTEN; |
| c9c: 60 62 ori r22, 0x20 ; 32 |
| c9e: 6a 83 std Y+2, r22 ; 0x02 |
| ca0: 06 c0 rjmp .+12 ; 0xcae <f_lseek+0x198> |
| #endif |
| return FR_OK; |
| fk_error: /* Abort this function due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| ca2: 8a 81 ldd r24, Y+2 ; 0x02 |
| ca4: 80 68 ori r24, 0x80 ; 128 |
| ca6: 8a 83 std Y+2, r24 ; 0x02 |
| ca8: 18 e0 ldi r17, 0x08 ; 8 |
| caa: 21 2e mov r2, r17 |
| cac: 31 2c mov r3, r1 |
| return FR_RW_ERROR; |
| } |
| cae: c1 01 movw r24, r2 |
| cb0: e2 e1 ldi r30, 0x12 ; 18 |
| cb2: cd b7 in r28, 0x3d ; 61 |
| cb4: de b7 in r29, 0x3e ; 62 |
| cb6: 0c 94 46 11 jmp 0x228c ; 0x228c <__epilogue_restores__> |
| 00000cba <f_sync>: |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_sync ( |
| FIL *fp /* Pointer to the file object */ |
| ) |
| { |
| cba: ef 92 push r14 |
| cbc: ff 92 push r15 |
| cbe: 0f 93 push r16 |
| cc0: 1f 93 push r17 |
| cc2: cf 93 push r28 |
| cc4: df 93 push r29 |
| cc6: ec 01 movw r28, r24 |
| BYTE *dir; |
| FRESULT res; |
| FATFS *fs = fp->fs; |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| cc8: 68 81 ld r22, Y |
| cca: 79 81 ldd r23, Y+1 ; 0x01 |
| ccc: 8c 81 ldd r24, Y+4 ; 0x04 |
| cce: 9d 81 ldd r25, Y+5 ; 0x05 |
| cd0: 0e 94 43 03 call 0x686 ; 0x686 <validate> |
| cd4: 7c 01 movw r14, r24 |
| if (res == FR_OK) { |
| cd6: 89 2b or r24, r25 |
| cd8: 09 f0 breq .+2 ; 0xcdc <f_sync+0x22> |
| cda: 40 c0 rjmp .+128 ; 0xd5c <f_sync+0xa2> |
| if (fp->flag & FA__WRITTEN) { /* Has the file been written? */ |
| cdc: 8a 81 ldd r24, Y+2 ; 0x02 |
| cde: 85 ff sbrs r24, 5 |
| ce0: 3d c0 rjmp .+122 ; 0xd5c <f_sync+0xa2> |
| /* Update the directory entry */ |
| if (!move_window(fp->dir_sect)) |
| ce2: 6e 89 ldd r22, Y+22 ; 0x16 |
| ce4: 7f 89 ldd r23, Y+23 ; 0x17 |
| ce6: 88 8d ldd r24, Y+24 ; 0x18 |
| ce8: 99 8d ldd r25, Y+25 ; 0x19 |
| cea: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| cee: 88 23 and r24, r24 |
| cf0: 91 f1 breq .+100 ; 0xd56 <f_sync+0x9c> |
| return FR_RW_ERROR; |
| dir = fp->dir_ptr; |
| cf2: 0a 8d ldd r16, Y+26 ; 0x1a |
| cf4: 1b 8d ldd r17, Y+27 ; 0x1b |
| dir[DIR_Attr] |= AM_ARC; /* Set archive bit */ |
| cf6: f8 01 movw r30, r16 |
| cf8: 83 85 ldd r24, Z+11 ; 0x0b |
| cfa: 80 62 ori r24, 0x20 ; 32 |
| cfc: 83 87 std Z+11, r24 ; 0x0b |
| ST_DWORD(&dir[DIR_FileSize], fp->fsize); /* Update file size */ |
| cfe: 8a 85 ldd r24, Y+10 ; 0x0a |
| d00: 9b 85 ldd r25, Y+11 ; 0x0b |
| d02: ac 85 ldd r26, Y+12 ; 0x0c |
| d04: bd 85 ldd r27, Y+13 ; 0x0d |
| d06: 84 8f std Z+28, r24 ; 0x1c |
| d08: 95 8f std Z+29, r25 ; 0x1d |
| d0a: a6 8f std Z+30, r26 ; 0x1e |
| d0c: b7 8f std Z+31, r27 ; 0x1f |
| ST_WORD(&dir[DIR_FstClusLO], fp->org_clust); /* Update start cluster */ |
| d0e: 8e 85 ldd r24, Y+14 ; 0x0e |
| d10: 9f 85 ldd r25, Y+15 ; 0x0f |
| d12: 93 8f std Z+27, r25 ; 0x1b |
| d14: 82 8f std Z+26, r24 ; 0x1a |
| #if _FAT32 |
| ST_WORD(&dir[DIR_FstClusHI], fp->org_clust >> 16); |
| #endif |
| tim = get_fattime(); /* Updated time */ |
| d16: 0e 94 bb 00 call 0x176 ; 0x176 <get_fattime> |
| ST_DWORD(&dir[DIR_WrtTime], tim); |
| d1a: f8 01 movw r30, r16 |
| d1c: 66 8b std Z+22, r22 ; 0x16 |
| d1e: 77 8b std Z+23, r23 ; 0x17 |
| d20: 80 8f std Z+24, r24 ; 0x18 |
| d22: 91 8f std Z+25, r25 ; 0x19 |
| fp->flag &= ~FA__WRITTEN; |
| d24: 8a 81 ldd r24, Y+2 ; 0x02 |
| d26: 8f 7d andi r24, 0xDF ; 223 |
| d28: 8a 83 std Y+2, r24 ; 0x02 |
| FRESULT sync (void) /* FR_OK: successful, FR_RW_ERROR: failed */ |
| { |
| FATFS *fs = FatFs; |
| fs->winflag = 1; |
| d2a: e0 91 0a 01 lds r30, 0x010A |
| d2e: f0 91 0b 01 lds r31, 0x010B |
| d32: 81 e0 ldi r24, 0x01 ; 1 |
| d34: 87 8f std Z+31, r24 ; 0x1f |
| if (!move_window(0)) return FR_RW_ERROR; |
| d36: 60 e0 ldi r22, 0x00 ; 0 |
| d38: 70 e0 ldi r23, 0x00 ; 0 |
| d3a: 80 e0 ldi r24, 0x00 ; 0 |
| d3c: 90 e0 ldi r25, 0x00 ; 0 |
| d3e: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| d42: 88 23 and r24, r24 |
| d44: 41 f0 breq .+16 ; 0xd56 <f_sync+0x9c> |
| ST_DWORD(&fs->win[FSI_Nxt_Free], fs->last_clust); |
| disk_write(0, fs->win, fs->fsi_sector, 1); |
| fs->fsi_flag = 0; |
| } |
| #endif |
| if (disk_ioctl(0, CTRL_SYNC, NULL) != RES_OK) return FR_RW_ERROR; |
| d46: 40 e0 ldi r20, 0x00 ; 0 |
| d48: 50 e0 ldi r21, 0x00 ; 0 |
| d4a: 63 e0 ldi r22, 0x03 ; 3 |
| d4c: 80 e0 ldi r24, 0x00 ; 0 |
| d4e: 0e 94 e8 0d call 0x1bd0 ; 0x1bd0 <disk_ioctl> |
| d52: 89 2b or r24, r25 |
| d54: 19 f0 breq .+6 ; 0xd5c <f_sync+0xa2> |
| d56: 98 e0 ldi r25, 0x08 ; 8 |
| d58: e9 2e mov r14, r25 |
| d5a: f1 2c mov r15, r1 |
| fp->flag &= ~FA__WRITTEN; |
| res = sync(); |
| } |
| } |
| return res; |
| } |
| d5c: c7 01 movw r24, r14 |
| d5e: e6 e0 ldi r30, 0x06 ; 6 |
| d60: cd b7 in r28, 0x3d ; 61 |
| d62: de b7 in r29, 0x3e ; 62 |
| d64: 0c 94 52 11 jmp 0x22a4 ; 0x22a4 <__epilogue_restores__+0x18> |
| 00000d68 <f_close>: |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_close ( |
| FIL *fp /* Pointer to the file object to be closed */ |
| ) |
| { |
| d68: cf 93 push r28 |
| d6a: df 93 push r29 |
| d6c: ec 01 movw r28, r24 |
| FRESULT res; |
| #if !_FS_READONLY |
| res = f_sync(fp); |
| d6e: 0e 94 5d 06 call 0xcba ; 0xcba <f_sync> |
| #else |
| res = validate(fp->fs, fp->id); |
| #endif |
| if (res == FR_OK) |
| d72: 00 97 sbiw r24, 0x00 ; 0 |
| d74: 11 f4 brne .+4 ; 0xd7a <f_close+0x12> |
| fp->fs = NULL; |
| d76: 1d 82 std Y+5, r1 ; 0x05 |
| d78: 1c 82 std Y+4, r1 ; 0x04 |
| d7a: df 91 pop r29 |
| d7c: cf 91 pop r28 |
| d7e: 08 95 ret |
| 00000d80 <f_write>: |
| FIL *fp, /* Pointer to the file object */ |
| const void *buff, /* Pointer to the data to be written */ |
| WORD btw, /* Number of bytes to write */ |
| WORD *bw /* Pointer to number of bytes written */ |
| ) |
| { |
| d80: a0 e0 ldi r26, 0x00 ; 0 |
| d82: b0 e0 ldi r27, 0x00 ; 0 |
| d84: e6 ec ldi r30, 0xC6 ; 198 |
| d86: f6 e0 ldi r31, 0x06 ; 6 |
| d88: 0c 94 2c 11 jmp 0x2258 ; 0x2258 <__prologue_saves__+0x4> |
| d8c: ec 01 movw r28, r24 |
| d8e: 8b 01 movw r16, r22 |
| d90: 7a 01 movw r14, r20 |
| d92: 39 01 movw r6, r18 |
| WORD wcnt; |
| CLUST clust; |
| BYTE cc; |
| FRESULT res; |
| const BYTE *wbuff = buff; |
| FATFS *fs = fp->fs; |
| d94: cc 80 ldd r12, Y+4 ; 0x04 |
| d96: dd 80 ldd r13, Y+5 ; 0x05 |
| *bw = 0; |
| d98: f9 01 movw r30, r18 |
| d9a: 11 82 std Z+1, r1 ; 0x01 |
| d9c: 10 82 st Z, r1 |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| d9e: 68 81 ld r22, Y |
| da0: 79 81 ldd r23, Y+1 ; 0x01 |
| da2: c6 01 movw r24, r12 |
| da4: 0e 94 43 03 call 0x686 ; 0x686 <validate> |
| da8: 4c 01 movw r8, r24 |
| if (res) return res; |
| daa: 89 2b or r24, r25 |
| dac: 09 f0 breq .+2 ; 0xdb0 <f_write+0x30> |
| dae: 1a c1 rjmp .+564 ; 0xfe4 <f_write+0x264> |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| db0: 8a 81 ldd r24, Y+2 ; 0x02 |
| db2: 88 23 and r24, r24 |
| db4: 0c f4 brge .+2 ; 0xdb8 <f_write+0x38> |
| db6: 13 c1 rjmp .+550 ; 0xfde <f_write+0x25e> |
| if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */ |
| db8: 81 fd sbrc r24, 1 |
| dba: 04 c0 rjmp .+8 ; 0xdc4 <f_write+0x44> |
| dbc: e6 e0 ldi r30, 0x06 ; 6 |
| dbe: 8e 2e mov r8, r30 |
| dc0: 91 2c mov r9, r1 |
| dc2: 10 c1 rjmp .+544 ; 0xfe4 <f_write+0x264> |
| if (fp->fsize + btw < fp->fsize) return FR_OK; /* File size cannot reach 4GB */ |
| dc4: 2a 85 ldd r18, Y+10 ; 0x0a |
| dc6: 3b 85 ldd r19, Y+11 ; 0x0b |
| dc8: 4c 85 ldd r20, Y+12 ; 0x0c |
| dca: 5d 85 ldd r21, Y+13 ; 0x0d |
| dcc: c7 01 movw r24, r14 |
| dce: aa 27 eor r26, r26 |
| dd0: bb 27 eor r27, r27 |
| dd2: 82 0f add r24, r18 |
| dd4: 93 1f adc r25, r19 |
| dd6: a4 1f adc r26, r20 |
| dd8: b5 1f adc r27, r21 |
| dda: 82 17 cp r24, r18 |
| ddc: 93 07 cpc r25, r19 |
| dde: a4 07 cpc r26, r20 |
| de0: b5 07 cpc r27, r21 |
| de2: 08 f4 brcc .+2 ; 0xde6 <f_write+0x66> |
| de4: ff c0 rjmp .+510 ; 0xfe4 <f_write+0x264> |
| DWORD sect; |
| WORD wcnt; |
| CLUST clust; |
| BYTE cc; |
| FRESULT res; |
| const BYTE *wbuff = buff; |
| de6: 58 01 movw r10, r16 |
| } |
| if (!move_window(fp->curr_sect)) /* Move sector window */ |
| goto fw_error; |
| wcnt = 512 - (WORD)(fp->fptr % 512); /* Copy fractional bytes bytes to sector window */ |
| if (wcnt > btw) wcnt = btw; |
| memcpy(&fs->win[(WORD)fp->fptr % 512], wbuff, wcnt); |
| de8: 70 e2 ldi r23, 0x20 ; 32 |
| dea: 47 2e mov r4, r23 |
| dec: 51 2c mov r5, r1 |
| dee: 4c 0c add r4, r12 |
| df0: 5d 1c adc r5, r13 |
| df2: d9 c0 rjmp .+434 ; 0xfa6 <f_write+0x226> |
| if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */ |
| if (fp->fsize + btw < fp->fsize) return FR_OK; /* File size cannot reach 4GB */ |
| for ( ; btw; /* Repeat until all data transferred */ |
| wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) { |
| if ((fp->fptr % 512) == 0) { /* On the sector boundary */ |
| df4: 2e 81 ldd r18, Y+6 ; 0x06 |
| df6: 3f 81 ldd r19, Y+7 ; 0x07 |
| df8: 48 85 ldd r20, Y+8 ; 0x08 |
| dfa: 59 85 ldd r21, Y+9 ; 0x09 |
| dfc: da 01 movw r26, r20 |
| dfe: c9 01 movw r24, r18 |
| e00: 91 70 andi r25, 0x01 ; 1 |
| e02: a0 70 andi r26, 0x00 ; 0 |
| e04: b0 70 andi r27, 0x00 ; 0 |
| e06: 00 97 sbiw r24, 0x00 ; 0 |
| e08: a1 05 cpc r26, r1 |
| e0a: b1 05 cpc r27, r1 |
| e0c: 09 f0 breq .+2 ; 0xe10 <f_write+0x90> |
| e0e: 93 c0 rjmp .+294 ; 0xf36 <f_write+0x1b6> |
| if (--(fp->sect_clust)) { /* Decrement left sector counter */ |
| e10: 8b 81 ldd r24, Y+3 ; 0x03 |
| e12: 81 50 subi r24, 0x01 ; 1 |
| e14: 8b 83 std Y+3, r24 ; 0x03 |
| e16: 88 23 and r24, r24 |
| e18: 49 f0 breq .+18 ; 0xe2c <f_write+0xac> |
| sect = fp->curr_sect + 1; /* Get current sector */ |
| e1a: 2a 89 ldd r18, Y+18 ; 0x12 |
| e1c: 3b 89 ldd r19, Y+19 ; 0x13 |
| e1e: 4c 89 ldd r20, Y+20 ; 0x14 |
| e20: 5d 89 ldd r21, Y+21 ; 0x15 |
| e22: 2f 5f subi r18, 0xFF ; 255 |
| e24: 3f 4f sbci r19, 0xFF ; 255 |
| e26: 4f 4f sbci r20, 0xFF ; 255 |
| e28: 5f 4f sbci r21, 0xFF ; 255 |
| e2a: 30 c0 rjmp .+96 ; 0xe8c <f_write+0x10c> |
| } else { /* On the cluster boundary, get next cluster */ |
| if (fp->fptr == 0) { /* Is top of the file */ |
| e2c: 21 15 cp r18, r1 |
| e2e: 31 05 cpc r19, r1 |
| e30: 41 05 cpc r20, r1 |
| e32: 51 05 cpc r21, r1 |
| e34: 69 f4 brne .+26 ; 0xe50 <f_write+0xd0> |
| clust = fp->org_clust; |
| e36: 2e 85 ldd r18, Y+14 ; 0x0e |
| e38: 3f 85 ldd r19, Y+15 ; 0x0f |
| if (clust == 0) /* No cluster is created yet */ |
| e3a: 21 15 cp r18, r1 |
| e3c: 31 05 cpc r19, r1 |
| e3e: 89 f4 brne .+34 ; 0xe62 <f_write+0xe2> |
| fp->org_clust = clust = create_chain(0); /* Create a new cluster chain */ |
| e40: 80 e0 ldi r24, 0x00 ; 0 |
| e42: 90 e0 ldi r25, 0x00 ; 0 |
| e44: 0e 94 25 05 call 0xa4a ; 0xa4a <create_chain> |
| e48: 9c 01 movw r18, r24 |
| e4a: 9f 87 std Y+15, r25 ; 0x0f |
| e4c: 8e 87 std Y+14, r24 ; 0x0e |
| e4e: 05 c0 rjmp .+10 ; 0xe5a <f_write+0xda> |
| } else { /* Middle or end of file */ |
| clust = create_chain(fp->curr_clust); /* Trace or streach cluster chain */ |
| e50: 88 89 ldd r24, Y+16 ; 0x10 |
| e52: 99 89 ldd r25, Y+17 ; 0x11 |
| e54: 0e 94 25 05 call 0xa4a ; 0xa4a <create_chain> |
| e58: 9c 01 movw r18, r24 |
| } |
| if (clust == 0) break; /* Disk full */ |
| e5a: 21 15 cp r18, r1 |
| e5c: 31 05 cpc r19, r1 |
| e5e: 09 f4 brne .+2 ; 0xe62 <f_write+0xe2> |
| e60: a6 c0 rjmp .+332 ; 0xfae <f_write+0x22e> |
| if (clust == 1 || clust >= fs->max_clust) goto fw_error; |
| e62: 21 30 cpi r18, 0x01 ; 1 |
| e64: 31 05 cpc r19, r1 |
| e66: 09 f4 brne .+2 ; 0xe6a <f_write+0xea> |
| e68: b7 c0 rjmp .+366 ; 0xfd8 <f_write+0x258> |
| e6a: f6 01 movw r30, r12 |
| e6c: 86 89 ldd r24, Z+22 ; 0x16 |
| e6e: 97 89 ldd r25, Z+23 ; 0x17 |
| e70: 28 17 cp r18, r24 |
| e72: 39 07 cpc r19, r25 |
| e74: 08 f0 brcs .+2 ; 0xe78 <f_write+0xf8> |
| e76: b0 c0 rjmp .+352 ; 0xfd8 <f_write+0x258> |
| fp->curr_clust = clust; /* Current cluster */ |
| e78: 39 8b std Y+17, r19 ; 0x11 |
| e7a: 28 8b std Y+16, r18 ; 0x10 |
| sect = clust2sect(clust); /* Get current sector */ |
| e7c: c9 01 movw r24, r18 |
| e7e: 0e 94 18 03 call 0x630 ; 0x630 <clust2sect> |
| e82: 9b 01 movw r18, r22 |
| e84: ac 01 movw r20, r24 |
| fp->sect_clust = fs->sects_clust; /* Re-initialize the left sector counter */ |
| e86: f6 01 movw r30, r12 |
| e88: 85 8d ldd r24, Z+29 ; 0x1d |
| e8a: 8b 83 std Y+3, r24 ; 0x03 |
| } |
| fp->curr_sect = sect; /* Update current sector */ |
| e8c: 2a 8b std Y+18, r18 ; 0x12 |
| e8e: 3b 8b std Y+19, r19 ; 0x13 |
| e90: 4c 8b std Y+20, r20 ; 0x14 |
| e92: 5d 8b std Y+21, r21 ; 0x15 |
| cc = btw / 512; /* When left bytes >= 512, */ |
| e94: 87 01 movw r16, r14 |
| e96: 01 2f mov r16, r17 |
| e98: 11 27 eor r17, r17 |
| e9a: 06 95 lsr r16 |
| if (cc) { /* Write maximum contiguous sectors directly */ |
| e9c: 00 23 and r16, r16 |
| e9e: 61 f1 breq .+88 ; 0xef8 <f_write+0x178> |
| ea0: 8b 81 ldd r24, Y+3 ; 0x03 |
| ea2: 10 2f mov r17, r16 |
| ea4: 80 17 cp r24, r16 |
| ea6: 08 f4 brcc .+2 ; 0xeaa <f_write+0x12a> |
| ea8: 18 2f mov r17, r24 |
| if (cc > fp->sect_clust) cc = fp->sect_clust; |
| if (disk_write(0, wbuff, sect, cc) != RES_OK) |
| eaa: 01 2f mov r16, r17 |
| eac: b5 01 movw r22, r10 |
| eae: 80 e0 ldi r24, 0x00 ; 0 |
| eb0: 0e 94 d3 0e call 0x1da6 ; 0x1da6 <disk_write> |
| eb4: 89 2b or r24, r25 |
| eb6: 09 f0 breq .+2 ; 0xeba <f_write+0x13a> |
| eb8: 8f c0 rjmp .+286 ; 0xfd8 <f_write+0x258> |
| goto fw_error; |
| fp->sect_clust -= cc - 1; |
| eba: 8b 81 ldd r24, Y+3 ; 0x03 |
| ebc: 8f 5f subi r24, 0xFF ; 255 |
| ebe: 81 1b sub r24, r17 |
| ec0: 8b 83 std Y+3, r24 ; 0x03 |
| fp->curr_sect += cc - 1; |
| ec2: 81 2f mov r24, r17 |
| ec4: 99 27 eor r25, r25 |
| ec6: 01 97 sbiw r24, 0x01 ; 1 |
| ec8: 9c 01 movw r18, r24 |
| eca: 44 27 eor r20, r20 |
| ecc: 37 fd sbrc r19, 7 |
| ece: 40 95 com r20 |
| ed0: 54 2f mov r21, r20 |
| ed2: 8c 01 movw r16, r24 |
| ed4: 0f 5f subi r16, 0xFF ; 255 |
| ed6: 1f 4f sbci r17, 0xFF ; 255 |
| ed8: 8a 89 ldd r24, Y+18 ; 0x12 |
| eda: 9b 89 ldd r25, Y+19 ; 0x13 |
| edc: ac 89 ldd r26, Y+20 ; 0x14 |
| ede: bd 89 ldd r27, Y+21 ; 0x15 |
| ee0: 82 0f add r24, r18 |
| ee2: 93 1f adc r25, r19 |
| ee4: a4 1f adc r26, r20 |
| ee6: b5 1f adc r27, r21 |
| ee8: 8a 8b std Y+18, r24 ; 0x12 |
| eea: 9b 8b std Y+19, r25 ; 0x13 |
| eec: ac 8b std Y+20, r26 ; 0x14 |
| eee: bd 8b std Y+21, r27 ; 0x15 |
| wcnt = cc * 512; continue; |
| ef0: 10 2f mov r17, r16 |
| ef2: 00 27 eor r16, r16 |
| ef4: 11 0f add r17, r17 |
| ef6: 3d c0 rjmp .+122 ; 0xf72 <f_write+0x1f2> |
| } |
| if (fp->fptr >= fp->fsize) { /* Flush R/W window if needed */ |
| ef8: 2e 81 ldd r18, Y+6 ; 0x06 |
| efa: 3f 81 ldd r19, Y+7 ; 0x07 |
| efc: 48 85 ldd r20, Y+8 ; 0x08 |
| efe: 59 85 ldd r21, Y+9 ; 0x09 |
| f00: 8a 85 ldd r24, Y+10 ; 0x0a |
| f02: 9b 85 ldd r25, Y+11 ; 0x0b |
| f04: ac 85 ldd r26, Y+12 ; 0x0c |
| f06: bd 85 ldd r27, Y+13 ; 0x0d |
| f08: 28 17 cp r18, r24 |
| f0a: 39 07 cpc r19, r25 |
| f0c: 4a 07 cpc r20, r26 |
| f0e: 5b 07 cpc r21, r27 |
| f10: 90 f0 brcs .+36 ; 0xf36 <f_write+0x1b6> |
| if (!move_window(0)) goto fw_error; |
| f12: 60 e0 ldi r22, 0x00 ; 0 |
| f14: 70 e0 ldi r23, 0x00 ; 0 |
| f16: 80 e0 ldi r24, 0x00 ; 0 |
| f18: 90 e0 ldi r25, 0x00 ; 0 |
| f1a: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| f1e: 88 23 and r24, r24 |
| f20: 09 f4 brne .+2 ; 0xf24 <f_write+0x1a4> |
| f22: 5a c0 rjmp .+180 ; 0xfd8 <f_write+0x258> |
| fs->winsect = fp->curr_sect; |
| f24: 8a 89 ldd r24, Y+18 ; 0x12 |
| f26: 9b 89 ldd r25, Y+19 ; 0x13 |
| f28: ac 89 ldd r26, Y+20 ; 0x14 |
| f2a: bd 89 ldd r27, Y+21 ; 0x15 |
| f2c: f6 01 movw r30, r12 |
| f2e: 84 83 std Z+4, r24 ; 0x04 |
| f30: 95 83 std Z+5, r25 ; 0x05 |
| f32: a6 83 std Z+6, r26 ; 0x06 |
| f34: b7 83 std Z+7, r27 ; 0x07 |
| } |
| } |
| if (!move_window(fp->curr_sect)) /* Move sector window */ |
| f36: 6a 89 ldd r22, Y+18 ; 0x12 |
| f38: 7b 89 ldd r23, Y+19 ; 0x13 |
| f3a: 8c 89 ldd r24, Y+20 ; 0x14 |
| f3c: 9d 89 ldd r25, Y+21 ; 0x15 |
| f3e: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| f42: 88 23 and r24, r24 |
| f44: 09 f4 brne .+2 ; 0xf48 <f_write+0x1c8> |
| f46: 48 c0 rjmp .+144 ; 0xfd8 <f_write+0x258> |
| goto fw_error; |
| wcnt = 512 - (WORD)(fp->fptr % 512); /* Copy fractional bytes bytes to sector window */ |
| f48: 8e 81 ldd r24, Y+6 ; 0x06 |
| f4a: 9f 81 ldd r25, Y+7 ; 0x07 |
| f4c: 91 70 andi r25, 0x01 ; 1 |
| f4e: 20 e0 ldi r18, 0x00 ; 0 |
| f50: 32 e0 ldi r19, 0x02 ; 2 |
| f52: 28 1b sub r18, r24 |
| f54: 39 0b sbc r19, r25 |
| f56: 87 01 movw r16, r14 |
| f58: 2e 15 cp r18, r14 |
| f5a: 3f 05 cpc r19, r15 |
| f5c: 08 f4 brcc .+2 ; 0xf60 <f_write+0x1e0> |
| f5e: 89 01 movw r16, r18 |
| if (wcnt > btw) wcnt = btw; |
| memcpy(&fs->win[(WORD)fp->fptr % 512], wbuff, wcnt); |
| f60: a8 01 movw r20, r16 |
| f62: b5 01 movw r22, r10 |
| f64: 84 0d add r24, r4 |
| f66: 95 1d adc r25, r5 |
| f68: 0e 94 a1 10 call 0x2142 ; 0x2142 <memcpy> |
| fs->winflag = 1; |
| f6c: 81 e0 ldi r24, 0x01 ; 1 |
| f6e: f6 01 movw r30, r12 |
| f70: 87 8f std Z+31, r24 ; 0x1f |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */ |
| if (fp->fsize + btw < fp->fsize) return FR_OK; /* File size cannot reach 4GB */ |
| for ( ; btw; /* Repeat until all data transferred */ |
| wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) { |
| f72: a0 0e add r10, r16 |
| f74: b1 1e adc r11, r17 |
| f76: c8 01 movw r24, r16 |
| f78: aa 27 eor r26, r26 |
| f7a: bb 27 eor r27, r27 |
| f7c: 2e 81 ldd r18, Y+6 ; 0x06 |
| f7e: 3f 81 ldd r19, Y+7 ; 0x07 |
| f80: 48 85 ldd r20, Y+8 ; 0x08 |
| f82: 59 85 ldd r21, Y+9 ; 0x09 |
| f84: 28 0f add r18, r24 |
| f86: 39 1f adc r19, r25 |
| f88: 4a 1f adc r20, r26 |
| f8a: 5b 1f adc r21, r27 |
| f8c: 2e 83 std Y+6, r18 ; 0x06 |
| f8e: 3f 83 std Y+7, r19 ; 0x07 |
| f90: 48 87 std Y+8, r20 ; 0x08 |
| f92: 59 87 std Y+9, r21 ; 0x09 |
| f94: f3 01 movw r30, r6 |
| f96: 80 81 ld r24, Z |
| f98: 91 81 ldd r25, Z+1 ; 0x01 |
| f9a: 80 0f add r24, r16 |
| f9c: 91 1f adc r25, r17 |
| f9e: 91 83 std Z+1, r25 ; 0x01 |
| fa0: 80 83 st Z, r24 |
| fa2: e0 1a sub r14, r16 |
| fa4: f1 0a sbc r15, r17 |
| if (res) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */ |
| if (fp->fsize + btw < fp->fsize) return FR_OK; /* File size cannot reach 4GB */ |
| for ( ; btw; /* Repeat until all data transferred */ |
| fa6: e1 14 cp r14, r1 |
| fa8: f1 04 cpc r15, r1 |
| faa: 09 f0 breq .+2 ; 0xfae <f_write+0x22e> |
| fac: 23 cf rjmp .-442 ; 0xdf4 <f_write+0x74> |
| if (wcnt > btw) wcnt = btw; |
| memcpy(&fs->win[(WORD)fp->fptr % 512], wbuff, wcnt); |
| fs->winflag = 1; |
| } |
| if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */ |
| fae: 2e 81 ldd r18, Y+6 ; 0x06 |
| fb0: 3f 81 ldd r19, Y+7 ; 0x07 |
| fb2: 48 85 ldd r20, Y+8 ; 0x08 |
| fb4: 59 85 ldd r21, Y+9 ; 0x09 |
| fb6: 8a 85 ldd r24, Y+10 ; 0x0a |
| fb8: 9b 85 ldd r25, Y+11 ; 0x0b |
| fba: ac 85 ldd r26, Y+12 ; 0x0c |
| fbc: bd 85 ldd r27, Y+13 ; 0x0d |
| fbe: 82 17 cp r24, r18 |
| fc0: 93 07 cpc r25, r19 |
| fc2: a4 07 cpc r26, r20 |
| fc4: b5 07 cpc r27, r21 |
| fc6: 20 f4 brcc .+8 ; 0xfd0 <f_write+0x250> |
| fc8: 2a 87 std Y+10, r18 ; 0x0a |
| fca: 3b 87 std Y+11, r19 ; 0x0b |
| fcc: 4c 87 std Y+12, r20 ; 0x0c |
| fce: 5d 87 std Y+13, r21 ; 0x0d |
| fp->flag |= FA__WRITTEN; /* Set file changed flag */ |
| fd0: 8a 81 ldd r24, Y+2 ; 0x02 |
| fd2: 80 62 ori r24, 0x20 ; 32 |
| fd4: 8a 83 std Y+2, r24 ; 0x02 |
| fd6: 06 c0 rjmp .+12 ; 0xfe4 <f_write+0x264> |
| return FR_OK; |
| fw_error: /* Abort this function due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| fd8: 8a 81 ldd r24, Y+2 ; 0x02 |
| fda: 80 68 ori r24, 0x80 ; 128 |
| fdc: 8a 83 std Y+2, r24 ; 0x02 |
| fde: 28 e0 ldi r18, 0x08 ; 8 |
| fe0: 82 2e mov r8, r18 |
| fe2: 91 2c mov r9, r1 |
| return FR_RW_ERROR; |
| } |
| fe4: c4 01 movw r24, r8 |
| fe6: e0 e1 ldi r30, 0x10 ; 16 |
| fe8: cd b7 in r28, 0x3d ; 61 |
| fea: de b7 in r29, 0x3e ; 62 |
| fec: 0c 94 48 11 jmp 0x2290 ; 0x2290 <__epilogue_restores__+0x4> |
| 00000ff0 <f_read>: |
| FIL *fp, /* Pointer to the file object */ |
| void *buff, /* Pointer to data buffer */ |
| WORD btr, /* Number of bytes to read */ |
| WORD *br /* Pointer to number of bytes read */ |
| ) |
| { |
| ff0: a0 e0 ldi r26, 0x00 ; 0 |
| ff2: b0 e0 ldi r27, 0x00 ; 0 |
| ff4: ee ef ldi r30, 0xFE ; 254 |
| ff6: f7 e0 ldi r31, 0x07 ; 7 |
| ff8: 0c 94 2c 11 jmp 0x2258 ; 0x2258 <__prologue_saves__+0x4> |
| ffc: ec 01 movw r28, r24 |
| ffe: 8b 01 movw r16, r22 |
| 1000: 7a 01 movw r14, r20 |
| 1002: 39 01 movw r6, r18 |
| DWORD sect, remain; |
| WORD rcnt; |
| CLUST clust; |
| BYTE cc, *rbuff = buff; |
| FRESULT res; |
| FATFS *fs = fp->fs; |
| 1004: 8c 80 ldd r8, Y+4 ; 0x04 |
| 1006: 9d 80 ldd r9, Y+5 ; 0x05 |
| *br = 0; |
| 1008: f9 01 movw r30, r18 |
| 100a: 11 82 std Z+1, r1 ; 0x01 |
| 100c: 10 82 st Z, r1 |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| 100e: 68 81 ld r22, Y |
| 1010: 79 81 ldd r23, Y+1 ; 0x01 |
| 1012: c4 01 movw r24, r8 |
| 1014: 0e 94 43 03 call 0x686 ; 0x686 <validate> |
| 1018: 5c 01 movw r10, r24 |
| if (res) return res; |
| 101a: 89 2b or r24, r25 |
| 101c: 09 f0 breq .+2 ; 0x1020 <f_read+0x30> |
| 101e: d9 c0 rjmp .+434 ; 0x11d2 <f_read+0x1e2> |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| 1020: 8a 81 ldd r24, Y+2 ; 0x02 |
| 1022: 88 23 and r24, r24 |
| 1024: 0c f4 brge .+2 ; 0x1028 <f_read+0x38> |
| 1026: d2 c0 rjmp .+420 ; 0x11cc <f_read+0x1dc> |
| if (!(fp->flag & FA_READ)) return FR_DENIED; /* Check access mode */ |
| 1028: 80 fd sbrc r24, 0 |
| 102a: 04 c0 rjmp .+8 ; 0x1034 <f_read+0x44> |
| 102c: 06 e0 ldi r16, 0x06 ; 6 |
| 102e: a0 2e mov r10, r16 |
| 1030: b1 2c mov r11, r1 |
| 1032: cf c0 rjmp .+414 ; 0x11d2 <f_read+0x1e2> |
| remain = fp->fsize - fp->fptr; |
| 1034: 2a 85 ldd r18, Y+10 ; 0x0a |
| 1036: 3b 85 ldd r19, Y+11 ; 0x0b |
| 1038: 4c 85 ldd r20, Y+12 ; 0x0c |
| 103a: 5d 85 ldd r21, Y+13 ; 0x0d |
| 103c: 8e 81 ldd r24, Y+6 ; 0x06 |
| 103e: 9f 81 ldd r25, Y+7 ; 0x07 |
| 1040: a8 85 ldd r26, Y+8 ; 0x08 |
| 1042: b9 85 ldd r27, Y+9 ; 0x09 |
| 1044: 28 1b sub r18, r24 |
| 1046: 39 0b sbc r19, r25 |
| 1048: 4a 0b sbc r20, r26 |
| 104a: 5b 0b sbc r21, r27 |
| if (btr > remain) btr = (WORD)remain; /* Truncate read count by number of bytes left */ |
| 104c: c7 01 movw r24, r14 |
| 104e: aa 27 eor r26, r26 |
| 1050: bb 27 eor r27, r27 |
| 1052: 28 17 cp r18, r24 |
| 1054: 39 07 cpc r19, r25 |
| 1056: 4a 07 cpc r20, r26 |
| 1058: 5b 07 cpc r21, r27 |
| 105a: 08 f4 brcc .+2 ; 0x105e <f_read+0x6e> |
| 105c: 79 01 movw r14, r18 |
| ) |
| { |
| DWORD sect, remain; |
| WORD rcnt; |
| CLUST clust; |
| BYTE cc, *rbuff = buff; |
| 105e: 68 01 movw r12, r16 |
| } |
| } |
| if (!move_window(fp->curr_sect)) goto fr_error; /* Move sector window */ |
| rcnt = 512 - (WORD)(fp->fptr % 512); /* Copy fractional bytes from sector window */ |
| if (rcnt > btr) rcnt = btr; |
| memcpy(rbuff, &fs->win[(WORD)fp->fptr % 512], rcnt); |
| 1060: 10 e2 ldi r17, 0x20 ; 32 |
| 1062: 41 2e mov r4, r17 |
| 1064: 51 2c mov r5, r1 |
| 1066: 48 0c add r4, r8 |
| 1068: 59 1c adc r5, r9 |
| 106a: a8 c0 rjmp .+336 ; 0x11bc <f_read+0x1cc> |
| remain = fp->fsize - fp->fptr; |
| if (btr > remain) btr = (WORD)remain; /* Truncate read count by number of bytes left */ |
| for ( ; btr; /* Repeat until all data transferred */ |
| rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) { |
| if ((fp->fptr % 512) == 0) { /* On the sector boundary */ |
| 106c: 2e 81 ldd r18, Y+6 ; 0x06 |
| 106e: 3f 81 ldd r19, Y+7 ; 0x07 |
| 1070: 48 85 ldd r20, Y+8 ; 0x08 |
| 1072: 59 85 ldd r21, Y+9 ; 0x09 |
| 1074: da 01 movw r26, r20 |
| 1076: c9 01 movw r24, r18 |
| 1078: 91 70 andi r25, 0x01 ; 1 |
| 107a: a0 70 andi r26, 0x00 ; 0 |
| 107c: b0 70 andi r27, 0x00 ; 0 |
| 107e: 00 97 sbiw r24, 0x00 ; 0 |
| 1080: a1 05 cpc r26, r1 |
| 1082: b1 05 cpc r27, r1 |
| 1084: 09 f0 breq .+2 ; 0x1088 <f_read+0x98> |
| 1086: 66 c0 rjmp .+204 ; 0x1154 <f_read+0x164> |
| if (--fp->sect_clust) { /* Decrement left sector counter */ |
| 1088: 8b 81 ldd r24, Y+3 ; 0x03 |
| 108a: 81 50 subi r24, 0x01 ; 1 |
| 108c: 8b 83 std Y+3, r24 ; 0x03 |
| 108e: 88 23 and r24, r24 |
| 1090: 49 f0 breq .+18 ; 0x10a4 <f_read+0xb4> |
| sect = fp->curr_sect + 1; /* Get current sector */ |
| 1092: 2a 89 ldd r18, Y+18 ; 0x12 |
| 1094: 3b 89 ldd r19, Y+19 ; 0x13 |
| 1096: 4c 89 ldd r20, Y+20 ; 0x14 |
| 1098: 5d 89 ldd r21, Y+21 ; 0x15 |
| 109a: 2f 5f subi r18, 0xFF ; 255 |
| 109c: 3f 4f sbci r19, 0xFF ; 255 |
| 109e: 4f 4f sbci r20, 0xFF ; 255 |
| 10a0: 5f 4f sbci r21, 0xFF ; 255 |
| 10a2: 22 c0 rjmp .+68 ; 0x10e8 <f_read+0xf8> |
| } else { /* On the cluster boundary, get next cluster */ |
| clust = (fp->fptr == 0) ? |
| 10a4: 21 15 cp r18, r1 |
| 10a6: 31 05 cpc r19, r1 |
| 10a8: 41 05 cpc r20, r1 |
| 10aa: 51 05 cpc r21, r1 |
| 10ac: 19 f4 brne .+6 ; 0x10b4 <f_read+0xc4> |
| 10ae: 2e 85 ldd r18, Y+14 ; 0x0e |
| 10b0: 3f 85 ldd r19, Y+15 ; 0x0f |
| 10b2: 05 c0 rjmp .+10 ; 0x10be <f_read+0xce> |
| 10b4: 88 89 ldd r24, Y+16 ; 0x10 |
| 10b6: 99 89 ldd r25, Y+17 ; 0x11 |
| 10b8: 0e 94 4f 04 call 0x89e ; 0x89e <get_cluster> |
| 10bc: 9c 01 movw r18, r24 |
| fp->org_clust : get_cluster(fp->curr_clust); |
| if (clust < 2 || clust >= fs->max_clust) |
| 10be: 22 30 cpi r18, 0x02 ; 2 |
| 10c0: 31 05 cpc r19, r1 |
| 10c2: 08 f4 brcc .+2 ; 0x10c6 <f_read+0xd6> |
| 10c4: 80 c0 rjmp .+256 ; 0x11c6 <f_read+0x1d6> |
| 10c6: f4 01 movw r30, r8 |
| 10c8: 86 89 ldd r24, Z+22 ; 0x16 |
| 10ca: 97 89 ldd r25, Z+23 ; 0x17 |
| 10cc: 28 17 cp r18, r24 |
| 10ce: 39 07 cpc r19, r25 |
| 10d0: 08 f0 brcs .+2 ; 0x10d4 <f_read+0xe4> |
| 10d2: 79 c0 rjmp .+242 ; 0x11c6 <f_read+0x1d6> |
| goto fr_error; |
| fp->curr_clust = clust; /* Current cluster */ |
| 10d4: 39 8b std Y+17, r19 ; 0x11 |
| 10d6: 28 8b std Y+16, r18 ; 0x10 |
| sect = clust2sect(clust); /* Get current sector */ |
| 10d8: c9 01 movw r24, r18 |
| 10da: 0e 94 18 03 call 0x630 ; 0x630 <clust2sect> |
| 10de: 9b 01 movw r18, r22 |
| 10e0: ac 01 movw r20, r24 |
| fp->sect_clust = fs->sects_clust; /* Re-initialize the left sector counter */ |
| 10e2: f4 01 movw r30, r8 |
| 10e4: 85 8d ldd r24, Z+29 ; 0x1d |
| 10e6: 8b 83 std Y+3, r24 ; 0x03 |
| } |
| fp->curr_sect = sect; /* Update current sector */ |
| 10e8: 2a 8b std Y+18, r18 ; 0x12 |
| 10ea: 3b 8b std Y+19, r19 ; 0x13 |
| 10ec: 4c 8b std Y+20, r20 ; 0x14 |
| 10ee: 5d 8b std Y+21, r21 ; 0x15 |
| cc = btr / 512; /* When left bytes >= 512, */ |
| 10f0: 87 01 movw r16, r14 |
| 10f2: 01 2f mov r16, r17 |
| 10f4: 11 27 eor r17, r17 |
| 10f6: 06 95 lsr r16 |
| if (cc) { /* Read maximum contiguous sectors directly */ |
| 10f8: 00 23 and r16, r16 |
| 10fa: 61 f1 breq .+88 ; 0x1154 <f_read+0x164> |
| 10fc: 8b 81 ldd r24, Y+3 ; 0x03 |
| 10fe: 10 2f mov r17, r16 |
| 1100: 80 17 cp r24, r16 |
| 1102: 08 f4 brcc .+2 ; 0x1106 <f_read+0x116> |
| 1104: 18 2f mov r17, r24 |
| if (cc > fp->sect_clust) cc = fp->sect_clust; |
| if (disk_read(0, rbuff, sect, cc) != RES_OK) |
| 1106: 01 2f mov r16, r17 |
| 1108: b6 01 movw r22, r12 |
| 110a: 80 e0 ldi r24, 0x00 ; 0 |
| 110c: 0e 94 51 0f call 0x1ea2 ; 0x1ea2 <disk_read> |
| 1110: 89 2b or r24, r25 |
| 1112: 09 f0 breq .+2 ; 0x1116 <f_read+0x126> |
| 1114: 58 c0 rjmp .+176 ; 0x11c6 <f_read+0x1d6> |
| goto fr_error; |
| fp->sect_clust -= cc - 1; |
| 1116: 8b 81 ldd r24, Y+3 ; 0x03 |
| 1118: 8f 5f subi r24, 0xFF ; 255 |
| 111a: 81 1b sub r24, r17 |
| 111c: 8b 83 std Y+3, r24 ; 0x03 |
| fp->curr_sect += cc - 1; |
| 111e: 81 2f mov r24, r17 |
| 1120: 99 27 eor r25, r25 |
| 1122: 01 97 sbiw r24, 0x01 ; 1 |
| 1124: 9c 01 movw r18, r24 |
| 1126: 44 27 eor r20, r20 |
| 1128: 37 fd sbrc r19, 7 |
| 112a: 40 95 com r20 |
| 112c: 54 2f mov r21, r20 |
| 112e: 8c 01 movw r16, r24 |
| 1130: 0f 5f subi r16, 0xFF ; 255 |
| 1132: 1f 4f sbci r17, 0xFF ; 255 |
| 1134: 8a 89 ldd r24, Y+18 ; 0x12 |
| 1136: 9b 89 ldd r25, Y+19 ; 0x13 |
| 1138: ac 89 ldd r26, Y+20 ; 0x14 |
| 113a: bd 89 ldd r27, Y+21 ; 0x15 |
| 113c: 82 0f add r24, r18 |
| 113e: 93 1f adc r25, r19 |
| 1140: a4 1f adc r26, r20 |
| 1142: b5 1f adc r27, r21 |
| 1144: 8a 8b std Y+18, r24 ; 0x12 |
| 1146: 9b 8b std Y+19, r25 ; 0x13 |
| 1148: ac 8b std Y+20, r26 ; 0x14 |
| 114a: bd 8b std Y+21, r27 ; 0x15 |
| rcnt = cc * 512; continue; |
| 114c: 10 2f mov r17, r16 |
| 114e: 00 27 eor r16, r16 |
| 1150: 11 0f add r17, r17 |
| 1152: 1a c0 rjmp .+52 ; 0x1188 <f_read+0x198> |
| } |
| } |
| if (!move_window(fp->curr_sect)) goto fr_error; /* Move sector window */ |
| 1154: 6a 89 ldd r22, Y+18 ; 0x12 |
| 1156: 7b 89 ldd r23, Y+19 ; 0x13 |
| 1158: 8c 89 ldd r24, Y+20 ; 0x14 |
| 115a: 9d 89 ldd r25, Y+21 ; 0x15 |
| 115c: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 1160: 88 23 and r24, r24 |
| 1162: 89 f1 breq .+98 ; 0x11c6 <f_read+0x1d6> |
| rcnt = 512 - (WORD)(fp->fptr % 512); /* Copy fractional bytes from sector window */ |
| 1164: 6e 81 ldd r22, Y+6 ; 0x06 |
| 1166: 7f 81 ldd r23, Y+7 ; 0x07 |
| 1168: 71 70 andi r23, 0x01 ; 1 |
| 116a: 80 e0 ldi r24, 0x00 ; 0 |
| 116c: 92 e0 ldi r25, 0x02 ; 2 |
| 116e: 86 1b sub r24, r22 |
| 1170: 97 0b sbc r25, r23 |
| 1172: 87 01 movw r16, r14 |
| 1174: 8e 15 cp r24, r14 |
| 1176: 9f 05 cpc r25, r15 |
| 1178: 08 f4 brcc .+2 ; 0x117c <f_read+0x18c> |
| 117a: 8c 01 movw r16, r24 |
| if (rcnt > btr) rcnt = btr; |
| memcpy(rbuff, &fs->win[(WORD)fp->fptr % 512], rcnt); |
| 117c: 64 0d add r22, r4 |
| 117e: 75 1d adc r23, r5 |
| 1180: a8 01 movw r20, r16 |
| 1182: c6 01 movw r24, r12 |
| 1184: 0e 94 a1 10 call 0x2142 ; 0x2142 <memcpy> |
| if (!(fp->flag & FA_READ)) return FR_DENIED; /* Check access mode */ |
| remain = fp->fsize - fp->fptr; |
| if (btr > remain) btr = (WORD)remain; /* Truncate read count by number of bytes left */ |
| for ( ; btr; /* Repeat until all data transferred */ |
| rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) { |
| 1188: c0 0e add r12, r16 |
| 118a: d1 1e adc r13, r17 |
| 118c: c8 01 movw r24, r16 |
| 118e: aa 27 eor r26, r26 |
| 1190: bb 27 eor r27, r27 |
| 1192: 2e 81 ldd r18, Y+6 ; 0x06 |
| 1194: 3f 81 ldd r19, Y+7 ; 0x07 |
| 1196: 48 85 ldd r20, Y+8 ; 0x08 |
| 1198: 59 85 ldd r21, Y+9 ; 0x09 |
| 119a: 28 0f add r18, r24 |
| 119c: 39 1f adc r19, r25 |
| 119e: 4a 1f adc r20, r26 |
| 11a0: 5b 1f adc r21, r27 |
| 11a2: 2e 83 std Y+6, r18 ; 0x06 |
| 11a4: 3f 83 std Y+7, r19 ; 0x07 |
| 11a6: 48 87 std Y+8, r20 ; 0x08 |
| 11a8: 59 87 std Y+9, r21 ; 0x09 |
| 11aa: f3 01 movw r30, r6 |
| 11ac: 80 81 ld r24, Z |
| 11ae: 91 81 ldd r25, Z+1 ; 0x01 |
| 11b0: 80 0f add r24, r16 |
| 11b2: 91 1f adc r25, r17 |
| 11b4: 91 83 std Z+1, r25 ; 0x01 |
| 11b6: 80 83 st Z, r24 |
| 11b8: e0 1a sub r14, r16 |
| 11ba: f1 0a sbc r15, r17 |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_READ)) return FR_DENIED; /* Check access mode */ |
| remain = fp->fsize - fp->fptr; |
| if (btr > remain) btr = (WORD)remain; /* Truncate read count by number of bytes left */ |
| for ( ; btr; /* Repeat until all data transferred */ |
| 11bc: e1 14 cp r14, r1 |
| 11be: f1 04 cpc r15, r1 |
| 11c0: 09 f0 breq .+2 ; 0x11c4 <f_read+0x1d4> |
| 11c2: 54 cf rjmp .-344 ; 0x106c <f_read+0x7c> |
| 11c4: 06 c0 rjmp .+12 ; 0x11d2 <f_read+0x1e2> |
| } |
| return FR_OK; |
| fr_error: /* Abort this function due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| 11c6: 8a 81 ldd r24, Y+2 ; 0x02 |
| 11c8: 80 68 ori r24, 0x80 ; 128 |
| 11ca: 8a 83 std Y+2, r24 ; 0x02 |
| 11cc: f8 e0 ldi r31, 0x08 ; 8 |
| 11ce: af 2e mov r10, r31 |
| 11d0: b1 2c mov r11, r1 |
| return FR_RW_ERROR; |
| } |
| 11d2: c5 01 movw r24, r10 |
| 11d4: e0 e1 ldi r30, 0x10 ; 16 |
| 11d6: cd b7 in r28, 0x3d ; 61 |
| 11d8: de b7 in r29, 0x3e ; 62 |
| 11da: 0c 94 48 11 jmp 0x2290 ; 0x2290 <__epilogue_restores__+0x4> |
| 000011de <f_mount>: |
| FRESULT f_mount ( |
| BYTE drv, /* Logical drive number to be mounted/unmounted */ |
| FATFS *fs /* Pointer to new file system object (NULL for unmount)*/ |
| ) |
| { |
| 11de: fb 01 movw r30, r22 |
| FATFS *fsobj; |
| if (drv) return FR_INVALID_DRIVE; |
| 11e0: 88 23 and r24, r24 |
| 11e2: 19 f0 breq .+6 ; 0x11ea <f_mount+0xc> |
| 11e4: 85 e0 ldi r24, 0x05 ; 5 |
| 11e6: 90 e0 ldi r25, 0x00 ; 0 |
| 11e8: 08 95 ret |
| fsobj = FatFs; |
| 11ea: a0 91 0a 01 lds r26, 0x010A |
| 11ee: b0 91 0b 01 lds r27, 0x010B |
| FatFs = fs; |
| 11f2: 70 93 0b 01 sts 0x010B, r23 |
| 11f6: 60 93 0a 01 sts 0x010A, r22 |
| if (fsobj) memset(fsobj, 0, sizeof(FATFS)); |
| 11fa: 10 97 sbiw r26, 0x00 ; 0 |
| 11fc: 29 f0 breq .+10 ; 0x1208 <f_mount+0x2a> |
| 11fe: 80 e2 ldi r24, 0x20 ; 32 |
| 1200: 92 e0 ldi r25, 0x02 ; 2 |
| 1202: 1d 92 st X+, r1 |
| 1204: 01 97 sbiw r24, 0x01 ; 1 |
| 1206: e9 f7 brne .-6 ; 0x1202 <f_mount+0x24> |
| if (fs) memset(fs, 0, sizeof(FATFS)); |
| 1208: 30 97 sbiw r30, 0x00 ; 0 |
| 120a: 19 f4 brne .+6 ; 0x1212 <f_mount+0x34> |
| 120c: 80 e0 ldi r24, 0x00 ; 0 |
| 120e: 90 e0 ldi r25, 0x00 ; 0 |
| 1210: 08 95 ret |
| 1212: 80 e2 ldi r24, 0x20 ; 32 |
| 1214: 92 e0 ldi r25, 0x02 ; 2 |
| 1216: 11 92 st Z+, r1 |
| 1218: 01 97 sbiw r24, 0x01 ; 1 |
| 121a: e9 f7 brne .-6 ; 0x1216 <f_mount+0x38> |
| 121c: 80 e0 ldi r24, 0x00 ; 0 |
| 121e: 90 e0 ldi r25, 0x00 ; 0 |
| return FR_OK; |
| } |
| 1220: 08 95 ret |
| 00001222 <check_fs>: |
| static |
| BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record or error */ |
| DWORD sect /* Sector# to check if it is a FAT boot record or not */ |
| ) |
| { |
| 1222: 0f 93 push r16 |
| 1224: cf 93 push r28 |
| 1226: df 93 push r29 |
| 1228: 9b 01 movw r18, r22 |
| 122a: ac 01 movw r20, r24 |
| FATFS *fs = FatFs; |
| 122c: c0 91 0a 01 lds r28, 0x010A |
| 1230: d0 91 0b 01 lds r29, 0x010B |
| if (disk_read(0, fs->win, sect, 1) != RES_OK) /* Load boot record */ |
| 1234: be 01 movw r22, r28 |
| 1236: 60 5e subi r22, 0xE0 ; 224 |
| 1238: 7f 4f sbci r23, 0xFF ; 255 |
| 123a: 01 e0 ldi r16, 0x01 ; 1 |
| 123c: 80 e0 ldi r24, 0x00 ; 0 |
| 123e: 0e 94 51 0f call 0x1ea2 ; 0x1ea2 <disk_read> |
| 1242: 89 2b or r24, r25 |
| 1244: d9 f4 brne .+54 ; 0x127c <check_fs+0x5a> |
| return 2; |
| if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature */ |
| 1246: c2 5e subi r28, 0xE2 ; 226 |
| 1248: dd 4f sbci r29, 0xFD ; 253 |
| 124a: 88 81 ld r24, Y |
| 124c: 99 81 ldd r25, Y+1 ; 0x01 |
| 124e: ce 51 subi r28, 0x1E ; 30 |
| 1250: d2 40 sbci r29, 0x02 ; 2 |
| 1252: 85 55 subi r24, 0x55 ; 85 |
| 1254: 9a 4a sbci r25, 0xAA ; 170 |
| 1256: 91 f4 brne .+36 ; 0x127c <check_fs+0x5a> |
| 1258: 00 e0 ldi r16, 0x00 ; 0 |
| return 2; |
| if (!memcmp(&fs->win[BS_FilSysType], "FAT", 3)) /* Check FAT signature */ |
| 125a: 43 e0 ldi r20, 0x03 ; 3 |
| 125c: 50 e0 ldi r21, 0x00 ; 0 |
| 125e: 60 e0 ldi r22, 0x00 ; 0 |
| 1260: 71 e0 ldi r23, 0x01 ; 1 |
| 1262: ce 01 movw r24, r28 |
| 1264: 8a 5a subi r24, 0xAA ; 170 |
| 1266: 9f 4f sbci r25, 0xFF ; 255 |
| 1268: 0e 94 94 10 call 0x2128 ; 0x2128 <memcmp> |
| 126c: 89 2b or r24, r25 |
| 126e: 09 f4 brne .+2 ; 0x1272 <check_fs+0x50> |
| 1270: 01 e0 ldi r16, 0x01 ; 1 |
| 1272: 81 e0 ldi r24, 0x01 ; 1 |
| 1274: 08 27 eor r16, r24 |
| 1276: 80 2f mov r24, r16 |
| 1278: 99 27 eor r25, r25 |
| 127a: 02 c0 rjmp .+4 ; 0x1280 <check_fs+0x5e> |
| 127c: 82 e0 ldi r24, 0x02 ; 2 |
| 127e: 90 e0 ldi r25, 0x00 ; 0 |
| 1280: df 91 pop r29 |
| 1282: cf 91 pop r28 |
| 1284: 0f 91 pop r16 |
| 1286: 08 95 ret |
| 00001288 <f_open>: |
| FRESULT f_open ( |
| FIL *fp, /* Pointer to the blank file object */ |
| const char *path, /* Pointer to the file name */ |
| BYTE mode /* Access mode and file open mode flags */ |
| ) |
| { |
| 1288: ad e1 ldi r26, 0x1D ; 29 |
| 128a: b0 e0 ldi r27, 0x00 ; 0 |
| 128c: ea e4 ldi r30, 0x4A ; 74 |
| 128e: f9 e0 ldi r31, 0x09 ; 9 |
| 1290: 0c 94 2a 11 jmp 0x2254 ; 0x2254 <__prologue_saves__> |
| 1294: 9d 8f std Y+29, r25 ; 0x1d |
| 1296: 8c 8f std Y+28, r24 ; 0x1c |
| 1298: 6b 01 movw r12, r22 |
| FRESULT res; |
| BYTE *dir; |
| DIR dirobj; |
| char fn[8+3+1]; |
| FATFS *fs = FatFs; |
| 129a: a0 90 0a 01 lds r10, 0x010A |
| 129e: b0 90 0b 01 lds r11, 0x010B |
| fp->fs = NULL; |
| 12a2: fc 01 movw r30, r24 |
| 12a4: 15 82 std Z+5, r1 ; 0x05 |
| 12a6: 14 82 std Z+4, r1 ; 0x04 |
| #if !_FS_READONLY |
| mode &= (FA_READ|FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW); |
| 12a8: f4 2f mov r31, r20 |
| 12aa: ff 71 andi r31, 0x1F ; 31 |
| 12ac: fb 8f std Y+27, r31 ; 0x1b |
| 12ae: 03 c0 rjmp .+6 ; 0x12b6 <f_open+0x2e> |
| const char *p = *path; |
| FATFS *fs = FatFs; |
| while (*p == ' ') p++; /* Strip leading spaces */ |
| 12b0: 08 94 sec |
| 12b2: c1 1c adc r12, r1 |
| 12b4: d1 1c adc r13, r1 |
| 12b6: d6 01 movw r26, r12 |
| 12b8: 8c 91 ld r24, X |
| 12ba: 80 32 cpi r24, 0x20 ; 32 |
| 12bc: c9 f3 breq .-14 ; 0x12b0 <f_open+0x28> |
| if (*p == '/') p++; /* Strip heading slash */ |
| 12be: 8f 32 cpi r24, 0x2F ; 47 |
| 12c0: 19 f4 brne .+6 ; 0x12c8 <f_open+0x40> |
| 12c2: 08 94 sec |
| 12c4: c1 1c adc r12, r1 |
| 12c6: d1 1c adc r13, r1 |
| *path = p; /* Return pointer to the path name */ |
| /* Is the file system object registered? */ |
| if (!fs) return FR_NOT_ENABLED; |
| 12c8: a1 14 cp r10, r1 |
| 12ca: b1 04 cpc r11, r1 |
| 12cc: 09 f4 brne .+2 ; 0x12d0 <f_open+0x48> |
| 12ce: 15 c1 rjmp .+554 ; 0x14fa <f_open+0x272> |
| fp->fs = NULL; |
| #if !_FS_READONLY |
| mode &= (FA_READ|FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW); |
| res = auto_mount(&path, (BYTE)(mode & (FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW))); |
| 12d0: 1b 8d ldd r17, Y+27 ; 0x1b |
| 12d2: 1e 71 andi r17, 0x1E ; 30 |
| /* Is the file system object registered? */ |
| if (!fs) return FR_NOT_ENABLED; |
| /* Chekck if the logical drive has been mounted or not */ |
| if (fs->fs_type) { |
| 12d4: f5 01 movw r30, r10 |
| 12d6: 84 8d ldd r24, Z+28 ; 0x1c |
| 12d8: 88 23 and r24, r24 |
| 12da: 61 f0 breq .+24 ; 0x12f4 <f_open+0x6c> |
| stat = disk_status(0); |
| 12dc: 80 e0 ldi r24, 0x00 ; 0 |
| 12de: 0e 94 bf 0d call 0x1b7e ; 0x1b7e <disk_status> |
| if (!(stat & STA_NOINIT)) { /* If the physical drive is kept initialized */ |
| 12e2: 99 27 eor r25, r25 |
| 12e4: 80 fd sbrc r24, 0 |
| 12e6: 06 c0 rjmp .+12 ; 0x12f4 <f_open+0x6c> |
| #if !_FS_READONLY |
| if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ |
| 12e8: 11 23 and r17, r17 |
| 12ea: 09 f4 brne .+2 ; 0x12ee <f_open+0x66> |
| 12ec: 29 c3 rjmp .+1618 ; 0x1940 <f_open+0x6b8> |
| 12ee: 82 fd sbrc r24, 2 |
| 12f0: 07 c1 rjmp .+526 ; 0x1500 <f_open+0x278> |
| 12f2: 26 c3 rjmp .+1612 ; 0x1940 <f_open+0x6b8> |
| } |
| } |
| /* The logical drive has not been mounted, following code attempts to mount the logical drive */ |
| memset(fs, 0, sizeof(FATFS)); /* Clean-up the file system object */ |
| 12f4: 80 e2 ldi r24, 0x20 ; 32 |
| 12f6: 92 e0 ldi r25, 0x02 ; 2 |
| 12f8: d5 01 movw r26, r10 |
| 12fa: 1d 92 st X+, r1 |
| 12fc: 01 97 sbiw r24, 0x01 ; 1 |
| 12fe: e9 f7 brne .-6 ; 0x12fa <f_open+0x72> |
| stat = disk_initialize(0); /* Initialize low level disk I/O layer */ |
| 1300: 80 e0 ldi r24, 0x00 ; 0 |
| 1302: 0e 94 ae 0f call 0x1f5c ; 0x1f5c <disk_initialize> |
| if (stat & STA_NOINIT) /* Check if the drive is ready */ |
| 1306: 99 27 eor r25, r25 |
| 1308: 80 ff sbrs r24, 0 |
| 130a: 03 c0 rjmp .+6 ; 0x1312 <f_open+0x8a> |
| 130c: 21 e0 ldi r18, 0x01 ; 1 |
| 130e: 30 e0 ldi r19, 0x00 ; 0 |
| 1310: 45 c3 rjmp .+1674 ; 0x199c <f_open+0x714> |
| return FR_NOT_READY; |
| #if !_FS_READONLY |
| if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ |
| 1312: 11 23 and r17, r17 |
| 1314: 11 f0 breq .+4 ; 0x131a <f_open+0x92> |
| 1316: 82 fd sbrc r24, 2 |
| 1318: f3 c0 rjmp .+486 ; 0x1500 <f_open+0x278> |
| return FR_WRITE_PROTECTED; |
| #endif |
| /* Search FAT partition on the drive */ |
| fmt = check_fs(bootsect = 0); /* Check sector 0 as an SFD format */ |
| 131a: 60 e0 ldi r22, 0x00 ; 0 |
| 131c: 70 e0 ldi r23, 0x00 ; 0 |
| 131e: 80 e0 ldi r24, 0x00 ; 0 |
| 1320: 90 e0 ldi r25, 0x00 ; 0 |
| 1322: 0e 94 11 09 call 0x1222 ; 0x1222 <check_fs> |
| if (fmt == 1) { /* Not a FAT boot record, it may be patitioned */ |
| 1326: 81 30 cpi r24, 0x01 ; 1 |
| 1328: 21 f0 breq .+8 ; 0x1332 <f_open+0xaa> |
| 132a: ee 24 eor r14, r14 |
| 132c: ff 24 eor r15, r15 |
| 132e: 87 01 movw r16, r14 |
| 1330: 1e c0 rjmp .+60 ; 0x136e <f_open+0xe6> |
| /* Check a partition listed in top of the partition table */ |
| if (fs->win[MBR_Table+4]) { /* Is the 1st partition existing? */ |
| 1332: e2 ee ldi r30, 0xE2 ; 226 |
| 1334: f1 e0 ldi r31, 0x01 ; 1 |
| 1336: ae 0e add r10, r30 |
| 1338: bf 1e adc r11, r31 |
| 133a: d5 01 movw r26, r10 |
| 133c: 8c 91 ld r24, X |
| 133e: ee e1 ldi r30, 0x1E ; 30 |
| 1340: fe ef ldi r31, 0xFE ; 254 |
| 1342: ae 0e add r10, r30 |
| 1344: bf 1e adc r11, r31 |
| 1346: 88 23 and r24, r24 |
| 1348: 09 f4 brne .+2 ; 0x134c <f_open+0xc4> |
| 134a: dd c0 rjmp .+442 ; 0x1506 <f_open+0x27e> |
| bootsect = LD_DWORD(&fs->win[MBR_Table+8]); /* Partition offset in LBA */ |
| 134c: 26 ee ldi r18, 0xE6 ; 230 |
| 134e: 31 e0 ldi r19, 0x01 ; 1 |
| 1350: a2 0e add r10, r18 |
| 1352: b3 1e adc r11, r19 |
| 1354: d5 01 movw r26, r10 |
| 1356: ed 90 ld r14, X+ |
| 1358: fd 90 ld r15, X+ |
| 135a: 0d 91 ld r16, X+ |
| 135c: 1c 91 ld r17, X |
| 135e: ea e1 ldi r30, 0x1A ; 26 |
| 1360: fe ef ldi r31, 0xFE ; 254 |
| 1362: ae 0e add r10, r30 |
| 1364: bf 1e adc r11, r31 |
| fmt = check_fs(bootsect); /* Check the partition */ |
| 1366: c8 01 movw r24, r16 |
| 1368: b7 01 movw r22, r14 |
| 136a: 0e 94 11 09 call 0x1222 ; 0x1222 <check_fs> |
| } |
| } |
| if (fmt || LD_WORD(&fs->win[BPB_BytsPerSec]) != 512) /* No valid FAT patition is found */ |
| 136e: 88 23 and r24, r24 |
| 1370: 09 f0 breq .+2 ; 0x1374 <f_open+0xec> |
| 1372: c9 c0 rjmp .+402 ; 0x1506 <f_open+0x27e> |
| 1374: f5 01 movw r30, r10 |
| 1376: 83 a5 ldd r24, Z+43 ; 0x2b |
| 1378: 94 a5 ldd r25, Z+44 ; 0x2c |
| 137a: 80 50 subi r24, 0x00 ; 0 |
| 137c: 92 40 sbci r25, 0x02 ; 2 |
| 137e: 09 f0 breq .+2 ; 0x1382 <f_open+0xfa> |
| 1380: c2 c0 rjmp .+388 ; 0x1506 <f_open+0x27e> |
| return FR_NO_FILESYSTEM; |
| /* Initialize the file system object */ |
| fatsize = LD_WORD(&fs->win[BPB_FATSz16]); /* Number of sectors per FAT */ |
| 1382: f5 01 movw r30, r10 |
| 1384: 66 a9 ldd r22, Z+54 ; 0x36 |
| 1386: 77 a9 ldd r23, Z+55 ; 0x37 |
| if (!fatsize) fatsize = LD_DWORD(&fs->win[BPB_FATSz32]); |
| 1388: 61 15 cp r22, r1 |
| 138a: 71 05 cpc r23, r1 |
| 138c: 19 f0 breq .+6 ; 0x1394 <f_open+0x10c> |
| } |
| if (fmt || LD_WORD(&fs->win[BPB_BytsPerSec]) != 512) /* No valid FAT patition is found */ |
| return FR_NO_FILESYSTEM; |
| /* Initialize the file system object */ |
| fatsize = LD_WORD(&fs->win[BPB_FATSz16]); /* Number of sectors per FAT */ |
| 138e: 88 27 eor r24, r24 |
| 1390: 99 27 eor r25, r25 |
| 1392: 0d c0 rjmp .+26 ; 0x13ae <f_open+0x126> |
| if (!fatsize) fatsize = LD_DWORD(&fs->win[BPB_FATSz32]); |
| 1394: 24 e4 ldi r18, 0x44 ; 68 |
| 1396: 30 e0 ldi r19, 0x00 ; 0 |
| 1398: a2 0e add r10, r18 |
| 139a: b3 1e adc r11, r19 |
| 139c: d5 01 movw r26, r10 |
| 139e: 6d 91 ld r22, X+ |
| 13a0: 7d 91 ld r23, X+ |
| 13a2: 8d 91 ld r24, X+ |
| 13a4: 9c 91 ld r25, X |
| 13a6: ec eb ldi r30, 0xBC ; 188 |
| 13a8: ff ef ldi r31, 0xFF ; 255 |
| 13aa: ae 0e add r10, r30 |
| 13ac: bf 1e adc r11, r31 |
| fs->sects_fat = (CLUST)fatsize; |
| 13ae: f5 01 movw r30, r10 |
| 13b0: 75 8b std Z+21, r23 ; 0x15 |
| 13b2: 64 8b std Z+20, r22 ; 0x14 |
| fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */ |
| 13b4: 20 a9 ldd r18, Z+48 ; 0x30 |
| 13b6: 26 8f std Z+30, r18 ; 0x1e |
| fatsize *= fs->n_fats; /* (Number of sectors in FAT area) */ |
| 13b8: 33 27 eor r19, r19 |
| 13ba: 44 27 eor r20, r20 |
| 13bc: 55 27 eor r21, r21 |
| 13be: 0e 94 e9 10 call 0x21d2 ; 0x21d2 <__mulsi3> |
| 13c2: 3b 01 movw r6, r22 |
| 13c4: 4c 01 movw r8, r24 |
| fs->fatbase = bootsect + LD_WORD(&fs->win[BPB_RsvdSecCnt]); /* FAT start sector (lba) */ |
| 13c6: a5 01 movw r20, r10 |
| 13c8: 42 5d subi r20, 0xD2 ; 210 |
| 13ca: 5f 4f sbci r21, 0xFF ; 255 |
| 13cc: f5 01 movw r30, r10 |
| 13ce: 86 a5 ldd r24, Z+46 ; 0x2e |
| 13d0: 97 a5 ldd r25, Z+47 ; 0x2f |
| 13d2: aa 27 eor r26, r26 |
| 13d4: bb 27 eor r27, r27 |
| 13d6: e8 0e add r14, r24 |
| 13d8: f9 1e adc r15, r25 |
| 13da: 0a 1f adc r16, r26 |
| 13dc: 1b 1f adc r17, r27 |
| 13de: e0 86 std Z+8, r14 ; 0x08 |
| 13e0: f1 86 std Z+9, r15 ; 0x09 |
| 13e2: 02 87 std Z+10, r16 ; 0x0a |
| 13e4: 13 87 std Z+11, r17 ; 0x0b |
| fs->sects_clust = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */ |
| 13e6: 85 a5 ldd r24, Z+45 ; 0x2d |
| 13e8: 85 8f std Z+29, r24 ; 0x1d |
| fs->n_rootdir = LD_WORD(&fs->win[BPB_RootEntCnt]); /* Nmuber of root directory entries */ |
| 13ea: 21 a9 ldd r18, Z+49 ; 0x31 |
| 13ec: 32 a9 ldd r19, Z+50 ; 0x32 |
| 13ee: 33 83 std Z+3, r19 ; 0x03 |
| 13f0: 22 83 std Z+2, r18 ; 0x02 |
| totalsect = LD_WORD(&fs->win[BPB_TotSec16]); /* Number of sectors on the file system */ |
| 13f2: 63 a9 ldd r22, Z+51 ; 0x33 |
| 13f4: 74 a9 ldd r23, Z+52 ; 0x34 |
| if (!totalsect) totalsect = LD_DWORD(&fs->win[BPB_TotSec32]); |
| 13f6: 61 15 cp r22, r1 |
| 13f8: 71 05 cpc r23, r1 |
| 13fa: 21 f0 breq .+8 ; 0x1404 <f_open+0x17c> |
| fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */ |
| fatsize *= fs->n_fats; /* (Number of sectors in FAT area) */ |
| fs->fatbase = bootsect + LD_WORD(&fs->win[BPB_RsvdSecCnt]); /* FAT start sector (lba) */ |
| fs->sects_clust = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */ |
| fs->n_rootdir = LD_WORD(&fs->win[BPB_RootEntCnt]); /* Nmuber of root directory entries */ |
| totalsect = LD_WORD(&fs->win[BPB_TotSec16]); /* Number of sectors on the file system */ |
| 13fc: 7b 01 movw r14, r22 |
| 13fe: 00 27 eor r16, r16 |
| 1400: 11 27 eor r17, r17 |
| 1402: 0d c0 rjmp .+26 ; 0x141e <f_open+0x196> |
| if (!totalsect) totalsect = LD_DWORD(&fs->win[BPB_TotSec32]); |
| 1404: 80 e4 ldi r24, 0x40 ; 64 |
| 1406: 90 e0 ldi r25, 0x00 ; 0 |
| 1408: a8 0e add r10, r24 |
| 140a: b9 1e adc r11, r25 |
| 140c: d5 01 movw r26, r10 |
| 140e: ed 90 ld r14, X+ |
| 1410: fd 90 ld r15, X+ |
| 1412: 0d 91 ld r16, X+ |
| 1414: 1c 91 ld r17, X |
| 1416: e0 ec ldi r30, 0xC0 ; 192 |
| 1418: ff ef ldi r31, 0xFF ; 255 |
| 141a: ae 0e add r10, r30 |
| 141c: bf 1e adc r11, r31 |
| fs->max_clust = maxclust = (totalsect /* Last cluster# + 1 */ |
| 141e: da 01 movw r26, r20 |
| 1420: 8d 91 ld r24, X+ |
| 1422: 9c 91 ld r25, X |
| 1424: aa 27 eor r26, r26 |
| 1426: bb 27 eor r27, r27 |
| 1428: e8 1a sub r14, r24 |
| 142a: f9 0a sbc r15, r25 |
| 142c: 0a 0b sbc r16, r26 |
| 142e: 1b 0b sbc r17, r27 |
| 1430: e6 18 sub r14, r6 |
| 1432: f7 08 sbc r15, r7 |
| 1434: 08 09 sbc r16, r8 |
| 1436: 19 09 sbc r17, r9 |
| 1438: e4 e0 ldi r30, 0x04 ; 4 |
| 143a: 36 95 lsr r19 |
| 143c: 27 95 ror r18 |
| 143e: ea 95 dec r30 |
| 1440: e1 f7 brne .-8 ; 0x143a <f_open+0x1b2> |
| 1442: c9 01 movw r24, r18 |
| 1444: aa 27 eor r26, r26 |
| 1446: bb 27 eor r27, r27 |
| 1448: e8 1a sub r14, r24 |
| 144a: f9 0a sbc r15, r25 |
| 144c: 0a 0b sbc r16, r26 |
| 144e: 1b 0b sbc r17, r27 |
| 1450: f5 01 movw r30, r10 |
| 1452: 25 8d ldd r18, Z+29 ; 0x1d |
| 1454: 33 27 eor r19, r19 |
| 1456: 44 27 eor r20, r20 |
| 1458: 55 27 eor r21, r21 |
| 145a: c8 01 movw r24, r16 |
| 145c: b7 01 movw r22, r14 |
| 145e: 0e 94 08 11 call 0x2210 ; 0x2210 <__udivmodsi4> |
| 1462: 2e 5f subi r18, 0xFE ; 254 |
| 1464: 3f 4f sbci r19, 0xFF ; 255 |
| 1466: 4f 4f sbci r20, 0xFF ; 255 |
| 1468: 5f 4f sbci r21, 0xFF ; 255 |
| 146a: f5 01 movw r30, r10 |
| 146c: 37 8b std Z+23, r19 ; 0x17 |
| 146e: 26 8b std Z+22, r18 ; 0x16 |
| - LD_WORD(&fs->win[BPB_RsvdSecCnt]) - fatsize - fs->n_rootdir / 16 |
| ) / fs->sects_clust + 2; |
| fmt = FS_FAT12; /* Determine the FAT sub type */ |
| if (maxclust > 0xFF7) fmt = FS_FAT16; |
| 1470: 28 3f cpi r18, 0xF8 ; 248 |
| 1472: ff e0 ldi r31, 0x0F ; 15 |
| 1474: 3f 07 cpc r19, r31 |
| 1476: f0 e0 ldi r31, 0x00 ; 0 |
| 1478: 4f 07 cpc r20, r31 |
| 147a: f0 e0 ldi r31, 0x00 ; 0 |
| 147c: 5f 07 cpc r21, r31 |
| 147e: 10 f4 brcc .+4 ; 0x1484 <f_open+0x1fc> |
| 1480: 61 e0 ldi r22, 0x01 ; 1 |
| 1482: 06 c0 rjmp .+12 ; 0x1490 <f_open+0x208> |
| if (maxclust > 0xFFF7) |
| 1484: 28 5f subi r18, 0xF8 ; 248 |
| 1486: 3f 4f sbci r19, 0xFF ; 255 |
| 1488: 40 40 sbci r20, 0x00 ; 0 |
| 148a: 50 40 sbci r21, 0x00 ; 0 |
| 148c: e0 f5 brcc .+120 ; 0x1506 <f_open+0x27e> |
| 148e: 62 e0 ldi r22, 0x02 ; 2 |
| fmt = FS_FAT32; |
| if (fmt == FS_FAT32) |
| fs->dirbase = LD_DWORD(&fs->win[BPB_RootClus]); /* Root directory start cluster */ |
| else |
| #endif |
| fs->dirbase = fs->fatbase + fatsize; /* Root directory start sector (lba) */ |
| 1490: f5 01 movw r30, r10 |
| 1492: 20 85 ldd r18, Z+8 ; 0x08 |
| 1494: 31 85 ldd r19, Z+9 ; 0x09 |
| 1496: 42 85 ldd r20, Z+10 ; 0x0a |
| 1498: 53 85 ldd r21, Z+11 ; 0x0b |
| 149a: d4 01 movw r26, r8 |
| 149c: c3 01 movw r24, r6 |
| 149e: 82 0f add r24, r18 |
| 14a0: 93 1f adc r25, r19 |
| 14a2: a4 1f adc r26, r20 |
| 14a4: b5 1f adc r27, r21 |
| 14a6: 84 87 std Z+12, r24 ; 0x0c |
| 14a8: 95 87 std Z+13, r25 ; 0x0d |
| 14aa: a6 87 std Z+14, r26 ; 0x0e |
| 14ac: b7 87 std Z+15, r27 ; 0x0f |
| fs->database = fs->fatbase + fatsize + fs->n_rootdir / 16; /* Data start sector (lba) */ |
| 14ae: 82 81 ldd r24, Z+2 ; 0x02 |
| 14b0: 93 81 ldd r25, Z+3 ; 0x03 |
| 14b2: 74 e0 ldi r23, 0x04 ; 4 |
| 14b4: 96 95 lsr r25 |
| 14b6: 87 95 ror r24 |
| 14b8: 7a 95 dec r23 |
| 14ba: e1 f7 brne .-8 ; 0x14b4 <f_open+0x22c> |
| 14bc: aa 27 eor r26, r26 |
| 14be: bb 27 eor r27, r27 |
| 14c0: 82 0f add r24, r18 |
| 14c2: 93 1f adc r25, r19 |
| 14c4: a4 1f adc r26, r20 |
| 14c6: b5 1f adc r27, r21 |
| 14c8: 86 0d add r24, r6 |
| 14ca: 97 1d adc r25, r7 |
| 14cc: a8 1d adc r26, r8 |
| 14ce: b9 1d adc r27, r9 |
| 14d0: 80 8b std Z+16, r24 ; 0x10 |
| 14d2: 91 8b std Z+17, r25 ; 0x11 |
| 14d4: a2 8b std Z+18, r26 ; 0x12 |
| 14d6: b3 8b std Z+19, r27 ; 0x13 |
| fs->fs_type = fmt; /* FAT sub-type */ |
| 14d8: 64 8f std Z+28, r22 ; 0x1c |
| #if !_FS_READONLY |
| fs->free_clust = (CLUST)0xFFFFFFFF; |
| 14da: 8f ef ldi r24, 0xFF ; 255 |
| 14dc: 9f ef ldi r25, 0xFF ; 255 |
| 14de: 93 8f std Z+27, r25 ; 0x1b |
| 14e0: 82 8f std Z+26, r24 ; 0x1a |
| fs->free_clust = LD_DWORD(&fs->win[FSI_Free_Count]); |
| } |
| } |
| #endif |
| #endif |
| fs->id = ++fsid; /* File system mount ID */ |
| 14e2: 80 91 0c 01 lds r24, 0x010C |
| 14e6: 90 91 0d 01 lds r25, 0x010D |
| 14ea: 01 96 adiw r24, 0x01 ; 1 |
| 14ec: 90 93 0d 01 sts 0x010D, r25 |
| 14f0: 80 93 0c 01 sts 0x010C, r24 |
| 14f4: 91 83 std Z+1, r25 ; 0x01 |
| 14f6: 80 83 st Z, r24 |
| 14f8: 23 c2 rjmp .+1094 ; 0x1940 <f_open+0x6b8> |
| 14fa: 2a e0 ldi r18, 0x0A ; 10 |
| 14fc: 30 e0 ldi r19, 0x00 ; 0 |
| 14fe: 4e c2 rjmp .+1180 ; 0x199c <f_open+0x714> |
| 1500: 29 e0 ldi r18, 0x09 ; 9 |
| 1502: 30 e0 ldi r19, 0x00 ; 0 |
| 1504: 4b c2 rjmp .+1174 ; 0x199c <f_open+0x714> |
| 1506: 2b e0 ldi r18, 0x0B ; 11 |
| 1508: 30 e0 ldi r19, 0x00 ; 0 |
| 150a: 48 c2 rjmp .+1168 ; 0x199c <f_open+0x714> |
| 150c: 36 01 movw r6, r12 |
| ) |
| { |
| BYTE n, t, c, a, b; |
| memset(dirname, ' ', 8+3); /* Fill buffer with spaces */ |
| 150e: 4e 01 movw r8, r28 |
| 1510: 08 94 sec |
| 1512: 81 1c adc r8, r1 |
| 1514: 91 1c adc r9, r1 |
| for (;;) { |
| ds = make_dirfile(&path, fn); /* Get a paragraph into fn[] */ |
| if (ds == 1) return FR_INVALID_NAME; |
| for (;;) { |
| if (!move_window(dirobj->sect)) return FR_RW_ERROR; |
| dptr = &fs->win[(dirobj->index & 15) * 32]; /* Pointer to the directory entry */ |
| 1516: 50 e2 ldi r21, 0x20 ; 32 |
| 1518: 45 2e mov r4, r21 |
| 151a: 51 2c mov r5, r1 |
| 151c: 4e 0e add r4, r30 |
| 151e: 5f 1e adc r5, r31 |
| if (dptr[DIR_Name] == 0) /* Has it reached to end of dir? */ |
| return !ds ? FR_NO_FILE : FR_NO_PATH; |
| if (dptr[DIR_Name] != 0xE5 /* Matched? */ |
| && !(dptr[DIR_Attr] & AM_VOL) |
| && !memcmp(&dptr[DIR_Name], fn, 8+3) ) break; |
| if (!next_dir_entry(dirobj)) /* Next directory pointer */ |
| 1520: 4d e0 ldi r20, 0x0D ; 13 |
| 1522: 24 2e mov r2, r20 |
| 1524: 31 2c mov r3, r1 |
| 1526: 2c 0e add r2, r28 |
| 1528: 3d 1e adc r3, r29 |
| ) |
| { |
| BYTE n, t, c, a, b; |
| memset(dirname, ' ', 8+3); /* Fill buffer with spaces */ |
| 152a: 4b e0 ldi r20, 0x0B ; 11 |
| 152c: 50 e0 ldi r21, 0x00 ; 0 |
| 152e: 60 e2 ldi r22, 0x20 ; 32 |
| 1530: 70 e0 ldi r23, 0x00 ; 0 |
| 1532: c4 01 movw r24, r8 |
| 1534: 0e 94 aa 10 call 0x2154 ; 0x2154 <memset> |
| 1538: 40 e0 ldi r20, 0x00 ; 0 |
| 153a: 68 e0 ldi r22, 0x08 ; 8 |
| 153c: 30 e0 ldi r19, 0x00 ; 0 |
| 153e: 58 e1 ldi r21, 0x18 ; 24 |
| 1540: 02 c0 rjmp .+4 ; 0x1546 <f_open+0x2be> |
| 1542: 48 e0 ldi r20, 0x08 ; 8 |
| 1544: 6b e0 ldi r22, 0x0B ; 11 |
| a = 0; b = 0x18; /* NT flag */ |
| n = 0; t = 8; |
| for (;;) { |
| c = *(*path)++; |
| 1546: d3 01 movw r26, r6 |
| 1548: 2d 91 ld r18, X+ |
| 154a: 3d 01 movw r6, r26 |
| if (c == '\0' || c == '/') { /* Reached to end of str or directory separator */ |
| 154c: 22 23 and r18, r18 |
| 154e: 11 f0 breq .+4 ; 0x1554 <f_open+0x2cc> |
| 1550: 2f 32 cpi r18, 0x2F ; 47 |
| 1552: 51 f4 brne .+20 ; 0x1568 <f_open+0x2e0> |
| if (n == 0) break; |
| 1554: 44 23 and r20, r20 |
| 1556: 09 f4 brne .+2 ; 0x155a <f_open+0x2d2> |
| 1558: 43 c0 rjmp .+134 ; 0x15e0 <f_open+0x358> |
| dirname[11] = _USE_NTFLAG ? (a & b) : 0; |
| 155a: 53 23 and r21, r19 |
| 155c: 5c 87 std Y+12, r21 ; 0x0c |
| return c; |
| 155e: 82 2f mov r24, r18 |
| 1560: 99 27 eor r25, r25 |
| 1562: 87 fd sbrc r24, 7 |
| 1564: 90 95 com r25 |
| 1566: 3e c0 rjmp .+124 ; 0x15e4 <f_open+0x35c> |
| memset(dirname, ' ', 8+3); /* Fill buffer with spaces */ |
| a = 0; b = 0x18; /* NT flag */ |
| n = 0; t = 8; |
| for (;;) { |
| c = *(*path)++; |
| 1568: 92 2f mov r25, r18 |
| if (c == '\0' || c == '/') { /* Reached to end of str or directory separator */ |
| if (n == 0) break; |
| dirname[11] = _USE_NTFLAG ? (a & b) : 0; |
| return c; |
| } |
| if (c <= ' ' || c == 0x7F) break; /* Reject invisible chars */ |
| 156a: 21 32 cpi r18, 0x21 ; 33 |
| 156c: c8 f1 brcs .+114 ; 0x15e0 <f_open+0x358> |
| 156e: 2f 37 cpi r18, 0x7F ; 127 |
| 1570: b9 f1 breq .+110 ; 0x15e0 <f_open+0x358> |
| if (c == '.') { |
| 1572: 2e 32 cpi r18, 0x2E ; 46 |
| 1574: 39 f4 brne .+14 ; 0x1584 <f_open+0x2fc> |
| if (!(a & 1) && n >= 1 && n <= 8) { /* Enter extension part */ |
| 1576: 30 fd sbrc r19, 0 |
| 1578: 33 c0 rjmp .+102 ; 0x15e0 <f_open+0x358> |
| 157a: 44 23 and r20, r20 |
| 157c: 89 f1 breq .+98 ; 0x15e0 <f_open+0x358> |
| 157e: 49 30 cpi r20, 0x09 ; 9 |
| 1580: 00 f3 brcs .-64 ; 0x1542 <f_open+0x2ba> |
| 1582: 2e c0 rjmp .+92 ; 0x15e0 <f_open+0x358> |
| (c >= 0xE0 && c <= 0xFC))) { |
| if (n == 0 && c == 0xE5) /* Change heading \xE5 to \x05 */ |
| c = 0x05; |
| a ^= 1; goto md_l2; |
| } |
| if (c == '"') break; /* Reject " */ |
| 1584: 22 32 cpi r18, 0x22 ; 34 |
| 1586: 61 f1 breq .+88 ; 0x15e0 <f_open+0x358> |
| if (c <= ')') goto md_l1; /* Accept ! # $ % & ' ( ) */ |
| 1588: 2a 32 cpi r18, 0x2A ; 42 |
| 158a: 08 f1 brcs .+66 ; 0x15ce <f_open+0x346> |
| if (c <= ',') break; /* Reject * + , */ |
| 158c: 2d 32 cpi r18, 0x2D ; 45 |
| 158e: 40 f1 brcs .+80 ; 0x15e0 <f_open+0x358> |
| if (c <= '9') goto md_l1; /* Accept - 0-9 */ |
| 1590: 2a 33 cpi r18, 0x3A ; 58 |
| 1592: e8 f0 brcs .+58 ; 0x15ce <f_open+0x346> |
| if (c <= '?') break; /* Reject : ; < = > ? */ |
| 1594: 20 34 cpi r18, 0x40 ; 64 |
| 1596: 20 f1 brcs .+72 ; 0x15e0 <f_open+0x358> |
| if (!(a & 1)) { /* These checks are not applied to S-JIS 2nd byte */ |
| 1598: 30 fd sbrc r19, 0 |
| 159a: 19 c0 rjmp .+50 ; 0x15ce <f_open+0x346> |
| if (c == '|') break; /* Reject | */ |
| 159c: 2c 37 cpi r18, 0x7C ; 124 |
| 159e: 01 f1 breq .+64 ; 0x15e0 <f_open+0x358> |
| if (c >= '[' && c <= ']') break;/* Reject [ \ ] */ |
| 15a0: 82 2f mov r24, r18 |
| 15a2: 8b 55 subi r24, 0x5B ; 91 |
| 15a4: 83 30 cpi r24, 0x03 ; 3 |
| 15a6: e0 f0 brcs .+56 ; 0x15e0 <f_open+0x358> |
| if (_USE_NTFLAG && c >= 'A' && c <= 'Z') |
| 15a8: 86 5e subi r24, 0xE6 ; 230 |
| 15aa: 8a 31 cpi r24, 0x1A ; 26 |
| 15ac: 28 f4 brcc .+10 ; 0x15b8 <f_open+0x330> |
| (t == 8) ? (b &= ~0x08) : (b &= ~0x10); |
| 15ae: 68 30 cpi r22, 0x08 ; 8 |
| 15b0: 11 f4 brne .+4 ; 0x15b6 <f_open+0x32e> |
| 15b2: 57 7f andi r21, 0xF7 ; 247 |
| 15b4: 01 c0 rjmp .+2 ; 0x15b8 <f_open+0x330> |
| 15b6: 5f 7e andi r21, 0xEF ; 239 |
| if (c >= 'a' && c <= 'z') { /* Convert to upper case */ |
| 15b8: 82 2f mov r24, r18 |
| 15ba: 81 56 subi r24, 0x61 ; 97 |
| 15bc: 8a 31 cpi r24, 0x1A ; 26 |
| 15be: 38 f4 brcc .+14 ; 0x15ce <f_open+0x346> |
| c -= 0x20; |
| 15c0: 92 2f mov r25, r18 |
| 15c2: 90 52 subi r25, 0x20 ; 32 |
| if (_USE_NTFLAG) (t == 8) ? (a |= 0x08) : (a |= 0x10); |
| 15c4: 68 30 cpi r22, 0x08 ; 8 |
| 15c6: 11 f4 brne .+4 ; 0x15cc <f_open+0x344> |
| 15c8: 38 60 ori r19, 0x08 ; 8 |
| 15ca: 01 c0 rjmp .+2 ; 0x15ce <f_open+0x346> |
| 15cc: 30 61 ori r19, 0x10 ; 16 |
| } |
| } |
| md_l1: |
| a &= ~1; |
| md_l2: |
| if (n >= t) break; |
| 15ce: 46 17 cp r20, r22 |
| 15d0: 38 f4 brcc .+14 ; 0x15e0 <f_open+0x358> |
| c -= 0x20; |
| if (_USE_NTFLAG) (t == 8) ? (a |= 0x08) : (a |= 0x10); |
| } |
| } |
| md_l1: |
| a &= ~1; |
| 15d2: 3e 7f andi r19, 0xFE ; 254 |
| md_l2: |
| if (n >= t) break; |
| dirname[n++] = c; |
| 15d4: f4 01 movw r30, r8 |
| 15d6: e4 0f add r30, r20 |
| 15d8: f1 1d adc r31, r1 |
| 15da: 90 83 st Z, r25 |
| 15dc: 4f 5f subi r20, 0xFF ; 255 |
| 15de: b3 cf rjmp .-154 ; 0x1546 <f_open+0x2be> |
| 15e0: 81 e0 ldi r24, 0x01 ; 1 |
| 15e2: 90 e0 ldi r25, 0x00 ; 0 |
| if (*path == '\0') { /* Null path means the root directory */ |
| *dir = NULL; return FR_OK; |
| } |
| for (;;) { |
| ds = make_dirfile(&path, fn); /* Get a paragraph into fn[] */ |
| 15e4: d8 2e mov r13, r24 |
| if (ds == 1) return FR_INVALID_NAME; |
| 15e6: b1 e0 ldi r27, 0x01 ; 1 |
| 15e8: 8b 17 cp r24, r27 |
| 15ea: 19 f4 brne .+6 ; 0x15f2 <f_open+0x36a> |
| 15ec: 24 e0 ldi r18, 0x04 ; 4 |
| 15ee: 30 e0 ldi r19, 0x00 ; 0 |
| 15f0: 55 c0 rjmp .+170 ; 0x169c <f_open+0x414> |
| for (;;) { |
| if (!move_window(dirobj->sect)) return FR_RW_ERROR; |
| 15f2: 6f 89 ldd r22, Y+23 ; 0x17 |
| 15f4: 78 8d ldd r23, Y+24 ; 0x18 |
| 15f6: 89 8d ldd r24, Y+25 ; 0x19 |
| 15f8: 9a 8d ldd r25, Y+26 ; 0x1a |
| 15fa: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 15fe: 88 23 and r24, r24 |
| 1600: 19 f4 brne .+6 ; 0x1608 <f_open+0x380> |
| 1602: 28 e0 ldi r18, 0x08 ; 8 |
| 1604: 30 e0 ldi r19, 0x00 ; 0 |
| 1606: 4a c0 rjmp .+148 ; 0x169c <f_open+0x414> |
| dptr = &fs->win[(dirobj->index & 15) * 32]; /* Pointer to the directory entry */ |
| 1608: 0f 85 ldd r16, Y+15 ; 0x0f |
| 160a: 18 89 ldd r17, Y+16 ; 0x10 |
| 160c: 0f 70 andi r16, 0x0F ; 15 |
| 160e: 10 70 andi r17, 0x00 ; 0 |
| 1610: 35 e0 ldi r19, 0x05 ; 5 |
| 1612: 00 0f add r16, r16 |
| 1614: 11 1f adc r17, r17 |
| 1616: 3a 95 dec r19 |
| 1618: e1 f7 brne .-8 ; 0x1612 <f_open+0x38a> |
| 161a: 04 0d add r16, r4 |
| 161c: 15 1d adc r17, r5 |
| if (dptr[DIR_Name] == 0) /* Has it reached to end of dir? */ |
| 161e: f8 01 movw r30, r16 |
| 1620: 80 81 ld r24, Z |
| 1622: 88 23 and r24, r24 |
| 1624: a9 f0 breq .+42 ; 0x1650 <f_open+0x3c8> |
| return !ds ? FR_NO_FILE : FR_NO_PATH; |
| if (dptr[DIR_Name] != 0xE5 /* Matched? */ |
| 1626: 85 3e cpi r24, 0xE5 ; 229 |
| 1628: 71 f0 breq .+28 ; 0x1646 <f_open+0x3be> |
| 162a: f8 01 movw r30, r16 |
| 162c: 83 85 ldd r24, Z+11 ; 0x0b |
| 162e: e8 2e mov r14, r24 |
| 1630: ff 24 eor r15, r15 |
| 1632: e3 fc sbrc r14, 3 |
| 1634: 08 c0 rjmp .+16 ; 0x1646 <f_open+0x3be> |
| 1636: 4b e0 ldi r20, 0x0B ; 11 |
| 1638: 50 e0 ldi r21, 0x00 ; 0 |
| 163a: b4 01 movw r22, r8 |
| 163c: c8 01 movw r24, r16 |
| 163e: 0e 94 94 10 call 0x2128 ; 0x2128 <memcmp> |
| 1642: 89 2b or r24, r25 |
| 1644: 51 f0 breq .+20 ; 0x165a <f_open+0x3d2> |
| && !(dptr[DIR_Attr] & AM_VOL) |
| && !memcmp(&dptr[DIR_Name], fn, 8+3) ) break; |
| if (!next_dir_entry(dirobj)) /* Next directory pointer */ |
| 1646: c1 01 movw r24, r2 |
| 1648: 0e 94 cb 04 call 0x996 ; 0x996 <next_dir_entry> |
| 164c: 88 23 and r24, r24 |
| 164e: 89 f6 brne .-94 ; 0x15f2 <f_open+0x36a> |
| return !ds ? FR_NO_FILE : FR_NO_PATH; |
| 1650: dd 20 and r13, r13 |
| 1652: 59 f4 brne .+22 ; 0x166a <f_open+0x3e2> |
| 1654: 22 e0 ldi r18, 0x02 ; 2 |
| 1656: 30 e0 ldi r19, 0x00 ; 0 |
| 1658: 21 c0 rjmp .+66 ; 0x169c <f_open+0x414> |
| } |
| if (!ds) { *dir = dptr; return FR_OK; } /* Matched with end of path */ |
| 165a: dd 20 and r13, r13 |
| 165c: 21 f4 brne .+8 ; 0x1666 <f_open+0x3de> |
| 165e: 68 01 movw r12, r16 |
| 1660: 20 e0 ldi r18, 0x00 ; 0 |
| 1662: 30 e0 ldi r19, 0x00 ; 0 |
| 1664: 1b c0 rjmp .+54 ; 0x169c <f_open+0x414> |
| if (!(dptr[DIR_Attr] & AM_DIR)) return FR_NO_PATH; /* Cannot trace because it is a file */ |
| 1666: e4 fc sbrc r14, 4 |
| 1668: 03 c0 rjmp .+6 ; 0x1670 <f_open+0x3e8> |
| 166a: 23 e0 ldi r18, 0x03 ; 3 |
| 166c: 30 e0 ldi r19, 0x00 ; 0 |
| 166e: 16 c0 rjmp .+44 ; 0x169c <f_open+0x414> |
| clust = /* Get cluster# of the directory */ |
| 1670: f8 01 movw r30, r16 |
| 1672: 82 8d ldd r24, Z+26 ; 0x1a |
| 1674: 93 8d ldd r25, Z+27 ; 0x1b |
| #if _FAT32 |
| ((DWORD)LD_WORD(&dptr[DIR_FstClusHI]) << 16) | |
| #endif |
| LD_WORD(&dptr[DIR_FstClusLO]); |
| dirobj->clust = dirobj->sclust = clust; /* Restart scannig with the new directory */ |
| 1676: 9c 8b std Y+20, r25 ; 0x14 |
| 1678: 8b 8b std Y+19, r24 ; 0x13 |
| 167a: 9e 8b std Y+22, r25 ; 0x16 |
| 167c: 8d 8b std Y+21, r24 ; 0x15 |
| dirobj->sect = clust2sect(clust); |
| 167e: 0e 94 18 03 call 0x630 ; 0x630 <clust2sect> |
| 1682: 6f 8b std Y+23, r22 ; 0x17 |
| 1684: 78 8f std Y+24, r23 ; 0x18 |
| 1686: 89 8f std Y+25, r24 ; 0x19 |
| 1688: 9a 8f std Y+26, r25 ; 0x1a |
| dirobj->index = 2; |
| 168a: 82 e0 ldi r24, 0x02 ; 2 |
| 168c: 90 e0 ldi r25, 0x00 ; 0 |
| 168e: 98 8b std Y+16, r25 ; 0x10 |
| 1690: 8f 87 std Y+15, r24 ; 0x0f |
| 1692: 4b cf rjmp .-362 ; 0x152a <f_open+0x2a2> |
| 1694: 20 e0 ldi r18, 0x00 ; 0 |
| 1696: 30 e0 ldi r19, 0x00 ; 0 |
| 1698: cc 24 eor r12, r12 |
| 169a: dd 24 eor r13, r13 |
| /* Trace the file path */ |
| res = trace_path(&dirobj, fn, path, &dir); /* Trace the file path */ |
| #if !_FS_READONLY |
| /* Create or Open a File */ |
| if (mode & (FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW)) { |
| 169c: fb 8d ldd r31, Y+27 ; 0x1b |
| 169e: 4f 2f mov r20, r31 |
| 16a0: 55 27 eor r21, r21 |
| 16a2: ca 01 movw r24, r20 |
| 16a4: 8c 71 andi r24, 0x1C ; 28 |
| 16a6: 90 70 andi r25, 0x00 ; 0 |
| 16a8: 89 2b or r24, r25 |
| 16aa: 09 f4 brne .+2 ; 0x16ae <f_open+0x426> |
| 16ac: fe c0 rjmp .+508 ; 0x18aa <f_open+0x622> |
| CLUST rs; |
| DWORD dw; |
| if (res != FR_OK) { /* No file, create new */ |
| 16ae: 21 15 cp r18, r1 |
| 16b0: 31 05 cpc r19, r1 |
| 16b2: 09 f4 brne .+2 ; 0x16b6 <f_open+0x42e> |
| 16b4: 8f c0 rjmp .+286 ; 0x17d4 <f_open+0x54c> |
| if (res != FR_NO_FILE) return res; |
| 16b6: 22 30 cpi r18, 0x02 ; 2 |
| 16b8: 31 05 cpc r19, r1 |
| 16ba: 09 f0 breq .+2 ; 0x16be <f_open+0x436> |
| 16bc: 6f c1 rjmp .+734 ; 0x199c <f_open+0x714> |
| ) |
| { |
| CLUST clust; |
| DWORD sector; |
| BYTE c, n, *dptr; |
| FATFS *fs = FatFs; |
| 16be: 60 90 0a 01 lds r6, 0x010A |
| 16c2: 70 90 0b 01 lds r7, 0x010B |
| /* Re-initialize directory object */ |
| clust = dirobj->sclust; |
| 16c6: 0b 89 ldd r16, Y+19 ; 0x13 |
| 16c8: 1c 89 ldd r17, Y+20 ; 0x14 |
| if (clust) { /* Dyanmic directory table */ |
| 16ca: 01 15 cp r16, r1 |
| 16cc: 11 05 cpc r17, r1 |
| 16ce: 51 f0 breq .+20 ; 0x16e4 <f_open+0x45c> |
| dirobj->clust = clust; |
| 16d0: 1e 8b std Y+22, r17 ; 0x16 |
| 16d2: 0d 8b std Y+21, r16 ; 0x15 |
| dirobj->sect = clust2sect(clust); |
| 16d4: c8 01 movw r24, r16 |
| 16d6: 0e 94 18 03 call 0x630 ; 0x630 <clust2sect> |
| 16da: 6f 8b std Y+23, r22 ; 0x17 |
| 16dc: 78 8f std Y+24, r23 ; 0x18 |
| 16de: 89 8f std Y+25, r24 ; 0x19 |
| 16e0: 9a 8f std Y+26, r25 ; 0x1a |
| 16e2: 09 c0 rjmp .+18 ; 0x16f6 <f_open+0x46e> |
| } else { /* Static directory table */ |
| dirobj->sect = fs->dirbase; |
| 16e4: f3 01 movw r30, r6 |
| 16e6: 84 85 ldd r24, Z+12 ; 0x0c |
| 16e8: 95 85 ldd r25, Z+13 ; 0x0d |
| 16ea: a6 85 ldd r26, Z+14 ; 0x0e |
| 16ec: b7 85 ldd r27, Z+15 ; 0x0f |
| 16ee: 8f 8b std Y+23, r24 ; 0x17 |
| 16f0: 98 8f std Y+24, r25 ; 0x18 |
| 16f2: a9 8f std Y+25, r26 ; 0x19 |
| 16f4: ba 8f std Y+26, r27 ; 0x1a |
| } |
| dirobj->index = 0; |
| 16f6: 18 8a std Y+16, r1 ; 0x10 |
| 16f8: 1f 86 std Y+15, r1 ; 0x0f |
| do { |
| if (!move_window(dirobj->sect)) return FR_RW_ERROR; |
| dptr = &fs->win[(dirobj->index & 15) * 32]; /* Pointer to the directory entry */ |
| 16fa: 20 e2 ldi r18, 0x20 ; 32 |
| 16fc: e2 2e mov r14, r18 |
| 16fe: f1 2c mov r15, r1 |
| 1700: e6 0c add r14, r6 |
| 1702: f7 1c adc r15, r7 |
| c = dptr[DIR_Name]; |
| if (c == 0 || c == 0xE5) { /* Found an empty entry! */ |
| *dir = dptr; return FR_OK; |
| } |
| } while (next_dir_entry(dirobj)); /* Next directory pointer */ |
| 1704: 9d e0 ldi r25, 0x0D ; 13 |
| 1706: 49 2e mov r4, r25 |
| 1708: 51 2c mov r5, r1 |
| 170a: 4c 0e add r4, r28 |
| 170c: 5d 1e adc r5, r29 |
| dirobj->sect = fs->dirbase; |
| } |
| dirobj->index = 0; |
| do { |
| if (!move_window(dirobj->sect)) return FR_RW_ERROR; |
| 170e: 6f 89 ldd r22, Y+23 ; 0x17 |
| 1710: 78 8d ldd r23, Y+24 ; 0x18 |
| 1712: 89 8d ldd r24, Y+25 ; 0x19 |
| 1714: 9a 8d ldd r25, Y+26 ; 0x1a |
| 1716: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 171a: 88 23 and r24, r24 |
| 171c: 09 f4 brne .+2 ; 0x1720 <f_open+0x498> |
| 171e: 0a c1 rjmp .+532 ; 0x1934 <f_open+0x6ac> |
| dptr = &fs->win[(dirobj->index & 15) * 32]; /* Pointer to the directory entry */ |
| 1720: 47 01 movw r8, r14 |
| 1722: cf 84 ldd r12, Y+15 ; 0x0f |
| 1724: d8 88 ldd r13, Y+16 ; 0x10 |
| 1726: ff e0 ldi r31, 0x0F ; 15 |
| 1728: cf 22 and r12, r31 |
| 172a: dd 24 eor r13, r13 |
| 172c: 85 e0 ldi r24, 0x05 ; 5 |
| 172e: cc 0c add r12, r12 |
| 1730: dd 1c adc r13, r13 |
| 1732: 8a 95 dec r24 |
| 1734: e1 f7 brne .-8 ; 0x172e <f_open+0x4a6> |
| 1736: ce 0c add r12, r14 |
| 1738: df 1c adc r13, r15 |
| c = dptr[DIR_Name]; |
| 173a: d6 01 movw r26, r12 |
| 173c: 8c 91 ld r24, X |
| if (c == 0 || c == 0xE5) { /* Found an empty entry! */ |
| 173e: 88 23 and r24, r24 |
| 1740: 09 f4 brne .+2 ; 0x1744 <f_open+0x4bc> |
| 1742: 18 c1 rjmp .+560 ; 0x1974 <f_open+0x6ec> |
| 1744: 85 3e cpi r24, 0xE5 ; 229 |
| 1746: 09 f4 brne .+2 ; 0x174a <f_open+0x4c2> |
| 1748: 15 c1 rjmp .+554 ; 0x1974 <f_open+0x6ec> |
| *dir = dptr; return FR_OK; |
| } |
| } while (next_dir_entry(dirobj)); /* Next directory pointer */ |
| 174a: c2 01 movw r24, r4 |
| 174c: 0e 94 cb 04 call 0x996 ; 0x996 <next_dir_entry> |
| 1750: 88 23 and r24, r24 |
| 1752: e9 f6 brne .-70 ; 0x170e <f_open+0x486> |
| /* Reached to end of the directory table */ |
| /* Abort when static table or could not stretch dynamic table */ |
| if (!clust || !(clust = create_chain(dirobj->clust))) return FR_DENIED; |
| 1754: 01 2b or r16, r17 |
| 1756: 09 f4 brne .+2 ; 0x175a <f_open+0x4d2> |
| 1758: ea c0 rjmp .+468 ; 0x192e <f_open+0x6a6> |
| 175a: 8d 89 ldd r24, Y+21 ; 0x15 |
| 175c: 9e 89 ldd r25, Y+22 ; 0x16 |
| 175e: 0e 94 25 05 call 0xa4a ; 0xa4a <create_chain> |
| 1762: 8c 01 movw r16, r24 |
| 1764: 00 97 sbiw r24, 0x00 ; 0 |
| 1766: 09 f4 brne .+2 ; 0x176a <f_open+0x4e2> |
| 1768: e2 c0 rjmp .+452 ; 0x192e <f_open+0x6a6> |
| if (clust == 1 || !move_window(0)) return FR_RW_ERROR; |
| 176a: 01 97 sbiw r24, 0x01 ; 1 |
| 176c: 09 f4 brne .+2 ; 0x1770 <f_open+0x4e8> |
| 176e: e2 c0 rjmp .+452 ; 0x1934 <f_open+0x6ac> |
| 1770: 60 e0 ldi r22, 0x00 ; 0 |
| 1772: 70 e0 ldi r23, 0x00 ; 0 |
| 1774: 80 e0 ldi r24, 0x00 ; 0 |
| 1776: 90 e0 ldi r25, 0x00 ; 0 |
| 1778: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 177c: 88 23 and r24, r24 |
| 177e: 09 f4 brne .+2 ; 0x1782 <f_open+0x4fa> |
| 1780: d9 c0 rjmp .+434 ; 0x1934 <f_open+0x6ac> |
| fs->winsect = sector = clust2sect(clust); /* Cleanup the expanded table */ |
| 1782: c8 01 movw r24, r16 |
| 1784: 0e 94 18 03 call 0x630 ; 0x630 <clust2sect> |
| 1788: 6b 01 movw r12, r22 |
| 178a: 7c 01 movw r14, r24 |
| 178c: f3 01 movw r30, r6 |
| 178e: 64 83 std Z+4, r22 ; 0x04 |
| 1790: 75 83 std Z+5, r23 ; 0x05 |
| 1792: 86 83 std Z+6, r24 ; 0x06 |
| 1794: 97 83 std Z+7, r25 ; 0x07 |
| memset(fs->win, 0, 512); |
| 1796: 80 e0 ldi r24, 0x00 ; 0 |
| 1798: 92 e0 ldi r25, 0x02 ; 2 |
| 179a: d4 01 movw r26, r8 |
| 179c: 1d 92 st X+, r1 |
| 179e: 01 97 sbiw r24, 0x01 ; 1 |
| 17a0: e9 f7 brne .-6 ; 0x179c <f_open+0x514> |
| for (n = fs->sects_clust; n; n--) { |
| 17a2: 15 8d ldd r17, Z+29 ; 0x1d |
| 17a4: 10 c0 rjmp .+32 ; 0x17c6 <f_open+0x53e> |
| if (disk_write(0, fs->win, sector, 1) != RES_OK) |
| 17a6: 01 e0 ldi r16, 0x01 ; 1 |
| 17a8: a7 01 movw r20, r14 |
| 17aa: 96 01 movw r18, r12 |
| 17ac: b4 01 movw r22, r8 |
| 17ae: 80 e0 ldi r24, 0x00 ; 0 |
| 17b0: 0e 94 d3 0e call 0x1da6 ; 0x1da6 <disk_write> |
| 17b4: 89 2b or r24, r25 |
| 17b6: 09 f0 breq .+2 ; 0x17ba <f_open+0x532> |
| 17b8: bd c0 rjmp .+378 ; 0x1934 <f_open+0x6ac> |
| return FR_RW_ERROR; |
| sector++; |
| 17ba: 08 94 sec |
| 17bc: c1 1c adc r12, r1 |
| 17be: d1 1c adc r13, r1 |
| 17c0: e1 1c adc r14, r1 |
| 17c2: f1 1c adc r15, r1 |
| if (!clust || !(clust = create_chain(dirobj->clust))) return FR_DENIED; |
| if (clust == 1 || !move_window(0)) return FR_RW_ERROR; |
| fs->winsect = sector = clust2sect(clust); /* Cleanup the expanded table */ |
| memset(fs->win, 0, 512); |
| for (n = fs->sects_clust; n; n--) { |
| 17c4: 11 50 subi r17, 0x01 ; 1 |
| 17c6: 11 23 and r17, r17 |
| 17c8: 71 f7 brne .-36 ; 0x17a6 <f_open+0x51e> |
| if (disk_write(0, fs->win, sector, 1) != RES_OK) |
| return FR_RW_ERROR; |
| sector++; |
| } |
| fs->winflag = 1; |
| 17ca: 81 e0 ldi r24, 0x01 ; 1 |
| 17cc: f3 01 movw r30, r6 |
| 17ce: 87 8f std Z+31, r24 ; 0x1f |
| 17d0: 64 01 movw r12, r8 |
| 17d2: d0 c0 rjmp .+416 ; 0x1974 <f_open+0x6ec> |
| memset(dir, 0, 32); /* Initialize the new entry */ |
| memcpy(&dir[DIR_Name], fn, 8+3); |
| dir[DIR_NTres] = fn[11]; |
| mode |= FA_CREATE_ALWAYS; |
| } else { /* Any object is already existing */ |
| if (mode & FA_CREATE_NEW) /* Cannot create new */ |
| 17d4: 42 ff sbrs r20, 2 |
| 17d6: 03 c0 rjmp .+6 ; 0x17de <f_open+0x556> |
| 17d8: 27 e0 ldi r18, 0x07 ; 7 |
| 17da: 30 e0 ldi r19, 0x00 ; 0 |
| 17dc: df c0 rjmp .+446 ; 0x199c <f_open+0x714> |
| return FR_EXIST; |
| if (dir == NULL || (dir[DIR_Attr] & (AM_RDO|AM_DIR))) /* Cannot overwrite (R/O or DIR) */ |
| 17de: c1 14 cp r12, r1 |
| 17e0: d1 04 cpc r13, r1 |
| 17e2: 09 f4 brne .+2 ; 0x17e6 <f_open+0x55e> |
| 17e4: a4 c0 rjmp .+328 ; 0x192e <f_open+0x6a6> |
| 17e6: f6 01 movw r30, r12 |
| 17e8: 83 85 ldd r24, Z+11 ; 0x0b |
| 17ea: 81 71 andi r24, 0x11 ; 17 |
| 17ec: 09 f0 breq .+2 ; 0x17f0 <f_open+0x568> |
| 17ee: 9f c0 rjmp .+318 ; 0x192e <f_open+0x6a6> |
| return FR_DENIED; |
| if (mode & FA_CREATE_ALWAYS) { /* Resize it to zero */ |
| 17f0: 43 ff sbrs r20, 3 |
| 17f2: 46 c0 rjmp .+140 ; 0x1880 <f_open+0x5f8> |
| #if _FAT32 |
| rs = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]); |
| ST_WORD(&dir[DIR_FstClusHI], 0); |
| #else |
| rs = LD_WORD(&dir[DIR_FstClusLO]); |
| 17f4: 82 8c ldd r8, Z+26 ; 0x1a |
| 17f6: 93 8c ldd r9, Z+27 ; 0x1b |
| #endif |
| ST_WORD(&dir[DIR_FstClusLO], 0); /* cluster = 0 */ |
| 17f8: 13 8e std Z+27, r1 ; 0x1b |
| 17fa: 12 8e std Z+26, r1 ; 0x1a |
| ST_DWORD(&dir[DIR_FileSize], 0); /* size = 0 */ |
| 17fc: 14 8e std Z+28, r1 ; 0x1c |
| 17fe: 15 8e std Z+29, r1 ; 0x1d |
| 1800: 16 8e std Z+30, r1 ; 0x1e |
| 1802: 17 8e std Z+31, r1 ; 0x1f |
| fs->winflag = 1; |
| 1804: 81 e0 ldi r24, 0x01 ; 1 |
| 1806: f5 01 movw r30, r10 |
| 1808: 87 8f std Z+31, r24 ; 0x1f |
| dw = fs->winsect; /* Remove the cluster chain */ |
| 180a: 24 80 ldd r2, Z+4 ; 0x04 |
| 180c: 35 80 ldd r3, Z+5 ; 0x05 |
| 180e: 46 80 ldd r4, Z+6 ; 0x06 |
| 1810: 57 80 ldd r5, Z+7 ; 0x07 |
| BOOL remove_chain ( /* TRUE: successful, FALSE: failed */ |
| CLUST clust /* Cluster# to remove chain from */ |
| ) |
| { |
| CLUST nxt; |
| FATFS *fs = FatFs; |
| 1812: e0 90 0a 01 lds r14, 0x010A |
| 1816: f0 90 0b 01 lds r15, 0x010B |
| 181a: 84 01 movw r16, r8 |
| 181c: 1b c0 rjmp .+54 ; 0x1854 <f_open+0x5cc> |
| while (clust >= 2 && clust < fs->max_clust) { |
| nxt = get_cluster(clust); |
| 181e: c8 01 movw r24, r16 |
| 1820: 0e 94 4f 04 call 0x89e ; 0x89e <get_cluster> |
| 1824: 3c 01 movw r6, r24 |
| if (nxt == 1) return FALSE; |
| 1826: 01 97 sbiw r24, 0x01 ; 1 |
| 1828: 09 f4 brne .+2 ; 0x182c <f_open+0x5a4> |
| 182a: 84 c0 rjmp .+264 ; 0x1934 <f_open+0x6ac> |
| if (!put_cluster(clust, 0)) return FALSE; |
| 182c: 60 e0 ldi r22, 0x00 ; 0 |
| 182e: 70 e0 ldi r23, 0x00 ; 0 |
| 1830: c8 01 movw r24, r16 |
| 1832: 0e 94 c1 03 call 0x782 ; 0x782 <put_cluster> |
| 1836: 88 23 and r24, r24 |
| 1838: 09 f4 brne .+2 ; 0x183c <f_open+0x5b4> |
| 183a: 7c c0 rjmp .+248 ; 0x1934 <f_open+0x6ac> |
| if (fs->free_clust != (CLUST)0xFFFFFFFF) { |
| 183c: f7 01 movw r30, r14 |
| 183e: 82 8d ldd r24, Z+26 ; 0x1a |
| 1840: 93 8d ldd r25, Z+27 ; 0x1b |
| 1842: ff ef ldi r31, 0xFF ; 255 |
| 1844: 8f 3f cpi r24, 0xFF ; 255 |
| 1846: 9f 07 cpc r25, r31 |
| 1848: 21 f0 breq .+8 ; 0x1852 <f_open+0x5ca> |
| fs->free_clust++; |
| 184a: 01 96 adiw r24, 0x01 ; 1 |
| 184c: f7 01 movw r30, r14 |
| 184e: 93 8f std Z+27, r25 ; 0x1b |
| 1850: 82 8f std Z+26, r24 ; 0x1a |
| 1852: 83 01 movw r16, r6 |
| { |
| CLUST nxt; |
| FATFS *fs = FatFs; |
| while (clust >= 2 && clust < fs->max_clust) { |
| 1854: 02 30 cpi r16, 0x02 ; 2 |
| 1856: 11 05 cpc r17, r1 |
| 1858: 30 f0 brcs .+12 ; 0x1866 <f_open+0x5de> |
| 185a: f7 01 movw r30, r14 |
| 185c: 86 89 ldd r24, Z+22 ; 0x16 |
| 185e: 97 89 ldd r25, Z+23 ; 0x17 |
| 1860: 08 17 cp r16, r24 |
| 1862: 19 07 cpc r17, r25 |
| 1864: e0 f2 brcs .-72 ; 0x181e <f_open+0x596> |
| #endif |
| ST_WORD(&dir[DIR_FstClusLO], 0); /* cluster = 0 */ |
| ST_DWORD(&dir[DIR_FileSize], 0); /* size = 0 */ |
| fs->winflag = 1; |
| dw = fs->winsect; /* Remove the cluster chain */ |
| if (!remove_chain(rs) || !move_window(dw)) |
| 1866: c2 01 movw r24, r4 |
| 1868: b1 01 movw r22, r2 |
| 186a: 0e 94 55 03 call 0x6aa ; 0x6aa <move_window> |
| 186e: 88 23 and r24, r24 |
| 1870: 09 f4 brne .+2 ; 0x1874 <f_open+0x5ec> |
| 1872: 60 c0 rjmp .+192 ; 0x1934 <f_open+0x6ac> |
| return FR_RW_ERROR; |
| fs->last_clust = rs - 1; /* Reuse the cluster hole */ |
| 1874: 08 94 sec |
| 1876: 81 08 sbc r8, r1 |
| 1878: 91 08 sbc r9, r1 |
| 187a: f5 01 movw r30, r10 |
| 187c: 91 8e std Z+25, r9 ; 0x19 |
| 187e: 80 8e std Z+24, r8 ; 0x18 |
| } |
| } |
| if (mode & FA_CREATE_ALWAYS) { |
| 1880: fb 8d ldd r31, Y+27 ; 0x1b |
| 1882: f3 ff sbrs r31, 3 |
| 1884: 23 c0 rjmp .+70 ; 0x18cc <f_open+0x644> |
| dir[DIR_Attr] = AM_ARC; /* New attribute */ |
| 1886: 80 e2 ldi r24, 0x20 ; 32 |
| 1888: f6 01 movw r30, r12 |
| 188a: 83 87 std Z+11, r24 ; 0x0b |
| dw = get_fattime(); |
| 188c: 0e 94 bb 00 call 0x176 ; 0x176 <get_fattime> |
| ST_DWORD(&dir[DIR_WrtTime], dw); /* Updated time */ |
| 1890: f6 01 movw r30, r12 |
| 1892: 66 8b std Z+22, r22 ; 0x16 |
| 1894: 77 8b std Z+23, r23 ; 0x17 |
| 1896: 80 8f std Z+24, r24 ; 0x18 |
| 1898: 91 8f std Z+25, r25 ; 0x19 |
| ST_DWORD(&dir[DIR_CrtTime], dw); /* Created time */ |
| 189a: 66 87 std Z+14, r22 ; 0x0e |
| 189c: 77 87 std Z+15, r23 ; 0x0f |
| 189e: 80 8b std Z+16, r24 ; 0x10 |
| 18a0: 91 8b std Z+17, r25 ; 0x11 |
| fs->winflag = 1; |
| 18a2: 81 e0 ldi r24, 0x01 ; 1 |
| 18a4: f5 01 movw r30, r10 |
| 18a6: 87 8f std Z+31, r24 ; 0x1f |
| 18a8: 11 c0 rjmp .+34 ; 0x18cc <f_open+0x644> |
| } |
| } |
| /* Open a File */ |
| else { |
| #endif /* !_FS_READONLY */ |
| if (res != FR_OK) return res; /* Trace failed */ |
| 18aa: 21 15 cp r18, r1 |
| 18ac: 31 05 cpc r19, r1 |
| 18ae: 09 f0 breq .+2 ; 0x18b2 <f_open+0x62a> |
| 18b0: 75 c0 rjmp .+234 ; 0x199c <f_open+0x714> |
| if (dir == NULL || (dir[DIR_Attr] & AM_DIR)) /* It is a directory */ |
| 18b2: c1 14 cp r12, r1 |
| 18b4: d1 04 cpc r13, r1 |
| 18b6: 09 f4 brne .+2 ; 0x18ba <f_open+0x632> |
| 18b8: 40 c0 rjmp .+128 ; 0x193a <f_open+0x6b2> |
| 18ba: f6 01 movw r30, r12 |
| 18bc: 83 85 ldd r24, Z+11 ; 0x0b |
| 18be: 99 27 eor r25, r25 |
| 18c0: 84 fd sbrc r24, 4 |
| 18c2: 3b c0 rjmp .+118 ; 0x193a <f_open+0x6b2> |
| return FR_NO_FILE; |
| #if !_FS_READONLY |
| if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */ |
| 18c4: 41 ff sbrs r20, 1 |
| 18c6: 02 c0 rjmp .+4 ; 0x18cc <f_open+0x644> |
| 18c8: 80 fd sbrc r24, 0 |
| 18ca: 31 c0 rjmp .+98 ; 0x192e <f_open+0x6a6> |
| return FR_DENIED; |
| } |
| fp->dir_sect = fs->winsect; /* Pointer to the directory entry */ |
| 18cc: f5 01 movw r30, r10 |
| 18ce: 84 81 ldd r24, Z+4 ; 0x04 |
| 18d0: 95 81 ldd r25, Z+5 ; 0x05 |
| 18d2: a6 81 ldd r26, Z+6 ; 0x06 |
| 18d4: b7 81 ldd r27, Z+7 ; 0x07 |
| 18d6: ec 8d ldd r30, Y+28 ; 0x1c |
| 18d8: fd 8d ldd r31, Y+29 ; 0x1d |
| 18da: 86 8b std Z+22, r24 ; 0x16 |
| 18dc: 97 8b std Z+23, r25 ; 0x17 |
| 18de: a0 8f std Z+24, r26 ; 0x18 |
| 18e0: b1 8f std Z+25, r27 ; 0x19 |
| fp->dir_ptr = dir; |
| 18e2: d3 8e std Z+27, r13 ; 0x1b |
| 18e4: c2 8e std Z+26, r12 ; 0x1a |
| #endif |
| fp->flag = mode; /* File access mode */ |
| 18e6: 2b 8d ldd r18, Y+27 ; 0x1b |
| 18e8: 22 83 std Z+2, r18 ; 0x02 |
| fp->org_clust = /* File start cluster */ |
| 18ea: f6 01 movw r30, r12 |
| 18ec: 82 8d ldd r24, Z+26 ; 0x1a |
| 18ee: 93 8d ldd r25, Z+27 ; 0x1b |
| 18f0: ec 8d ldd r30, Y+28 ; 0x1c |
| 18f2: fd 8d ldd r31, Y+29 ; 0x1d |
| 18f4: 97 87 std Z+15, r25 ; 0x0f |
| 18f6: 86 87 std Z+14, r24 ; 0x0e |
| #if _FAT32 |
| ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | |
| #endif |
| LD_WORD(&dir[DIR_FstClusLO]); |
| fp->fsize = LD_DWORD(&dir[DIR_FileSize]); /* File size */ |
| 18f8: f6 01 movw r30, r12 |
| 18fa: 84 8d ldd r24, Z+28 ; 0x1c |
| 18fc: 95 8d ldd r25, Z+29 ; 0x1d |
| 18fe: a6 8d ldd r26, Z+30 ; 0x1e |
| 1900: b7 8d ldd r27, Z+31 ; 0x1f |
| 1902: ec 8d ldd r30, Y+28 ; 0x1c |
| 1904: fd 8d ldd r31, Y+29 ; 0x1d |
| 1906: 82 87 std Z+10, r24 ; 0x0a |
| 1908: 93 87 std Z+11, r25 ; 0x0b |
| 190a: a4 87 std Z+12, r26 ; 0x0c |
| 190c: b5 87 std Z+13, r27 ; 0x0d |
| fp->fptr = 0; /* File ptr */ |
| 190e: 16 82 std Z+6, r1 ; 0x06 |
| 1910: 17 82 std Z+7, r1 ; 0x07 |
| 1912: 10 86 std Z+8, r1 ; 0x08 |
| 1914: 11 86 std Z+9, r1 ; 0x09 |
| fp->sect_clust = 1; /* Sector counter */ |
| 1916: 81 e0 ldi r24, 0x01 ; 1 |
| 1918: 83 83 std Z+3, r24 ; 0x03 |
| fp->fs = fs; fp->id = fs->id; /* Owner file system object of the file */ |
| 191a: b5 82 std Z+5, r11 ; 0x05 |
| 191c: a4 82 std Z+4, r10 ; 0x04 |
| 191e: d5 01 movw r26, r10 |
| 1920: 8d 91 ld r24, X+ |
| 1922: 9c 91 ld r25, X |
| 1924: 91 83 std Z+1, r25 ; 0x01 |
| 1926: 80 83 st Z, r24 |
| 1928: 20 e0 ldi r18, 0x00 ; 0 |
| 192a: 30 e0 ldi r19, 0x00 ; 0 |
| 192c: 37 c0 rjmp .+110 ; 0x199c <f_open+0x714> |
| return FR_OK; |
| 192e: 26 e0 ldi r18, 0x06 ; 6 |
| 1930: 30 e0 ldi r19, 0x00 ; 0 |
| 1932: 34 c0 rjmp .+104 ; 0x199c <f_open+0x714> |
| 1934: 28 e0 ldi r18, 0x08 ; 8 |
| 1936: 30 e0 ldi r19, 0x00 ; 0 |
| 1938: 31 c0 rjmp .+98 ; 0x199c <f_open+0x714> |
| 193a: 22 e0 ldi r18, 0x02 ; 2 |
| 193c: 30 e0 ldi r19, 0x00 ; 0 |
| 193e: 2e c0 rjmp .+92 ; 0x199c <f_open+0x714> |
| ) |
| { |
| CLUST clust; |
| char ds; |
| BYTE *dptr = NULL; |
| FATFS *fs = FatFs; |
| 1940: e0 91 0a 01 lds r30, 0x010A |
| 1944: f0 91 0b 01 lds r31, 0x010B |
| /* Initialize directory object */ |
| clust = fs->dirbase; |
| 1948: 84 85 ldd r24, Z+12 ; 0x0c |
| 194a: 95 85 ldd r25, Z+13 ; 0x0d |
| dirobj->clust = dirobj->sclust = clust; |
| dirobj->sect = clust2sect(clust); |
| } else |
| #endif |
| { |
| dirobj->clust = dirobj->sclust = 0; |
| 194c: 1c 8a std Y+20, r1 ; 0x14 |
| 194e: 1b 8a std Y+19, r1 ; 0x13 |
| 1950: 1e 8a std Y+22, r1 ; 0x16 |
| 1952: 1d 8a std Y+21, r1 ; 0x15 |
| dirobj->sect = clust; |
| 1954: aa 27 eor r26, r26 |
| 1956: bb 27 eor r27, r27 |
| 1958: 8f 8b std Y+23, r24 ; 0x17 |
| 195a: 98 8f std Y+24, r25 ; 0x18 |
| 195c: a9 8f std Y+25, r26 ; 0x19 |
| 195e: ba 8f std Y+26, r27 ; 0x1a |
| } |
| dirobj->index = 0; |
| 1960: 18 8a std Y+16, r1 ; 0x10 |
| 1962: 1f 86 std Y+15, r1 ; 0x0f |
| dirobj->fs = fs; |
| 1964: fa 8b std Y+18, r31 ; 0x12 |
| 1966: e9 8b std Y+17, r30 ; 0x11 |
| if (*path == '\0') { /* Null path means the root directory */ |
| 1968: d6 01 movw r26, r12 |
| 196a: 8c 91 ld r24, X |
| 196c: 88 23 and r24, r24 |
| 196e: 09 f4 brne .+2 ; 0x1972 <f_open+0x6ea> |
| 1970: 91 ce rjmp .-734 ; 0x1694 <f_open+0x40c> |
| 1972: cc cd rjmp .-1128 ; 0x150c <f_open+0x284> |
| DWORD dw; |
| if (res != FR_OK) { /* No file, create new */ |
| if (res != FR_NO_FILE) return res; |
| res = reserve_direntry(&dirobj, &dir); |
| if (res != FR_OK) return res; |
| memset(dir, 0, 32); /* Initialize the new entry */ |
| 1974: 80 e2 ldi r24, 0x20 ; 32 |
| 1976: f6 01 movw r30, r12 |
| 1978: 11 92 st Z+, r1 |
| 197a: 8a 95 dec r24 |
| 197c: e9 f7 brne .-6 ; 0x1978 <f_open+0x6f0> |
| memcpy(&dir[DIR_Name], fn, 8+3); |
| 197e: f6 01 movw r30, r12 |
| 1980: de 01 movw r26, r28 |
| 1982: 11 96 adiw r26, 0x01 ; 1 |
| 1984: 8b e0 ldi r24, 0x0B ; 11 |
| 1986: 0d 90 ld r0, X+ |
| 1988: 01 92 st Z+, r0 |
| 198a: 81 50 subi r24, 0x01 ; 1 |
| 198c: e1 f7 brne .-8 ; 0x1986 <f_open+0x6fe> |
| dir[DIR_NTres] = fn[11]; |
| 198e: 8c 85 ldd r24, Y+12 ; 0x0c |
| 1990: f6 01 movw r30, r12 |
| 1992: 84 87 std Z+12, r24 ; 0x0c |
| mode |= FA_CREATE_ALWAYS; |
| 1994: fb 8d ldd r31, Y+27 ; 0x1b |
| 1996: f8 60 ori r31, 0x08 ; 8 |
| 1998: fb 8f std Y+27, r31 ; 0x1b |
| 199a: 72 cf rjmp .-284 ; 0x1880 <f_open+0x5f8> |
| fp->fptr = 0; /* File ptr */ |
| fp->sect_clust = 1; /* Sector counter */ |
| fp->fs = fs; fp->id = fs->id; /* Owner file system object of the file */ |
| return FR_OK; |
| } |
| 199c: c9 01 movw r24, r18 |
| 199e: e2 e1 ldi r30, 0x12 ; 18 |
| 19a0: 6d 96 adiw r28, 0x1d ; 29 |
| 19a2: 0c 94 46 11 jmp 0x228c ; 0x228c <__epilogue_restores__> |
| 000019a6 <wait_ready>: |
| /* Wait for card ready */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE wait_ready (void) |
| { |
| 19a6: 82 e3 ldi r24, 0x32 ; 50 |
| 19a8: 80 93 10 01 sts 0x0110, r24 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 19ac: 8f ef ldi r24, 0xFF ; 255 |
| 19ae: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 19b0: 0d b4 in r0, 0x2d ; 45 |
| 19b2: 07 fe sbrs r0, 7 |
| 19b4: fd cf rjmp .-6 ; 0x19b0 <wait_ready+0xa> |
| return SPDR; |
| 19b6: 8e b5 in r24, 0x2e ; 46 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 19b8: 8f ef ldi r24, 0xFF ; 255 |
| 19ba: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 19bc: 0d b4 in r0, 0x2d ; 45 |
| 19be: 07 fe sbrs r0, 7 |
| 19c0: fd cf rjmp .-6 ; 0x19bc <wait_ready+0x16> |
| return SPDR; |
| 19c2: 8e b5 in r24, 0x2e ; 46 |
| 19c4: 28 2f mov r18, r24 |
| 19c6: 33 27 eor r19, r19 |
| Timer2 = 50; /* Wait for ready in timeout of 500ms */ |
| rcvr_spi(); |
| do |
| res = rcvr_spi(); |
| while ((res != 0xFF) && Timer2); |
| 19c8: 8f 3f cpi r24, 0xFF ; 255 |
| 19ca: 21 f0 breq .+8 ; 0x19d4 <wait_ready+0x2e> |
| 19cc: 80 91 10 01 lds r24, 0x0110 |
| 19d0: 88 23 and r24, r24 |
| 19d2: 91 f7 brne .-28 ; 0x19b8 <wait_ready+0x12> |
| return res; |
| } |
| 19d4: c9 01 movw r24, r18 |
| 19d6: 08 95 ret |
| 000019d8 <rcvr_datablock>: |
| static |
| BOOL rcvr_datablock ( |
| BYTE *buff, /* Data buffer to store received data */ |
| UINT btr /* Byte count (must be even number) */ |
| ) |
| { |
| 19d8: fc 01 movw r30, r24 |
| BYTE token; |
| Timer1 = 10; |
| 19da: 8a e0 ldi r24, 0x0A ; 10 |
| 19dc: 80 93 0f 01 sts 0x010F, r24 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 19e0: 8f ef ldi r24, 0xFF ; 255 |
| 19e2: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 19e4: 0d b4 in r0, 0x2d ; 45 |
| 19e6: 07 fe sbrs r0, 7 |
| 19e8: fd cf rjmp .-6 ; 0x19e4 <rcvr_datablock+0xc> |
| return SPDR; |
| 19ea: 8e b5 in r24, 0x2e ; 46 |
| Timer1 = 10; |
| do { /* Wait for data packet in timeout of 100ms */ |
| token = rcvr_spi(); |
| } while ((token == 0xFF) && Timer1); |
| 19ec: 8f 3f cpi r24, 0xFF ; 255 |
| 19ee: 29 f4 brne .+10 ; 0x19fa <rcvr_datablock+0x22> |
| 19f0: 80 91 0f 01 lds r24, 0x010F |
| 19f4: 88 23 and r24, r24 |
| 19f6: 29 f1 breq .+74 ; 0x1a42 <rcvr_datablock+0x6a> |
| 19f8: f3 cf rjmp .-26 ; 0x19e0 <rcvr_datablock+0x8> |
| if(token != 0xFE) return FALSE; /* If not valid data token, retutn with error */ |
| 19fa: 8e 3f cpi r24, 0xFE ; 254 |
| 19fc: 11 f5 brne .+68 ; 0x1a42 <rcvr_datablock+0x6a> |
| do { /* Receive the data block into buffer */ |
| rcvr_spi_m(buff++); |
| 19fe: 8f ef ldi r24, 0xFF ; 255 |
| 1a00: 8e bd out 0x2e, r24 ; 46 |
| 1a02: 0d b4 in r0, 0x2d ; 45 |
| 1a04: 07 fe sbrs r0, 7 |
| 1a06: fd cf rjmp .-6 ; 0x1a02 <rcvr_datablock+0x2a> |
| 1a08: 8e b5 in r24, 0x2e ; 46 |
| 1a0a: 80 83 st Z, r24 |
| rcvr_spi_m(buff++); |
| 1a0c: 8f ef ldi r24, 0xFF ; 255 |
| 1a0e: 8e bd out 0x2e, r24 ; 46 |
| 1a10: 0d b4 in r0, 0x2d ; 45 |
| 1a12: 07 fe sbrs r0, 7 |
| 1a14: fd cf rjmp .-6 ; 0x1a10 <rcvr_datablock+0x38> |
| 1a16: 8e b5 in r24, 0x2e ; 46 |
| 1a18: 81 83 std Z+1, r24 ; 0x01 |
| } while (btr -= 2); |
| 1a1a: 62 50 subi r22, 0x02 ; 2 |
| 1a1c: 70 40 sbci r23, 0x00 ; 0 |
| 1a1e: 11 f0 breq .+4 ; 0x1a24 <rcvr_datablock+0x4c> |
| 1a20: 32 96 adiw r30, 0x02 ; 2 |
| 1a22: ed cf rjmp .-38 ; 0x19fe <rcvr_datablock+0x26> |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1a24: 8f ef ldi r24, 0xFF ; 255 |
| 1a26: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1a28: 0d b4 in r0, 0x2d ; 45 |
| 1a2a: 07 fe sbrs r0, 7 |
| 1a2c: fd cf rjmp .-6 ; 0x1a28 <rcvr_datablock+0x50> |
| return SPDR; |
| 1a2e: 8e b5 in r24, 0x2e ; 46 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1a30: 8f ef ldi r24, 0xFF ; 255 |
| 1a32: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1a34: 0d b4 in r0, 0x2d ; 45 |
| 1a36: 07 fe sbrs r0, 7 |
| 1a38: fd cf rjmp .-6 ; 0x1a34 <rcvr_datablock+0x5c> |
| return SPDR; |
| 1a3a: 8e b5 in r24, 0x2e ; 46 |
| 1a3c: 81 e0 ldi r24, 0x01 ; 1 |
| 1a3e: 90 e0 ldi r25, 0x00 ; 0 |
| 1a40: 08 95 ret |
| rcvr_spi_m(buff++); |
| } while (btr -= 2); |
| rcvr_spi(); /* Discard CRC */ |
| rcvr_spi(); |
| return TRUE; /* Return with success */ |
| 1a42: 80 e0 ldi r24, 0x00 ; 0 |
| 1a44: 90 e0 ldi r25, 0x00 ; 0 |
| } |
| 1a46: 08 95 ret |
| 00001a48 <xmit_datablock>: |
| static |
| BOOL xmit_datablock ( |
| const BYTE *buff, /* 512 byte data block to be transmitted */ |
| BYTE token /* Data/Stop token */ |
| ) |
| { |
| 1a48: 1f 93 push r17 |
| 1a4a: cf 93 push r28 |
| 1a4c: df 93 push r29 |
| 1a4e: ec 01 movw r28, r24 |
| 1a50: 16 2f mov r17, r22 |
| BYTE resp, wc; |
| if (wait_ready() != 0xFF) return FALSE; |
| 1a52: 0e 94 d3 0c call 0x19a6 ; 0x19a6 <wait_ready> |
| 1a56: 8f 3f cpi r24, 0xFF ; 255 |
| 1a58: 19 f0 breq .+6 ; 0x1a60 <xmit_datablock+0x18> |
| 1a5a: 80 e0 ldi r24, 0x00 ; 0 |
| 1a5c: 90 e0 ldi r25, 0x00 ; 0 |
| 1a5e: 31 c0 rjmp .+98 ; 0x1ac2 <xmit_datablock+0x7a> |
| xmit_spi(token); /* Xmit data token */ |
| 1a60: 1e bd out 0x2e, r17 ; 46 |
| 1a62: 0d b4 in r0, 0x2d ; 45 |
| 1a64: 07 fe sbrs r0, 7 |
| 1a66: fd cf rjmp .-6 ; 0x1a62 <xmit_datablock+0x1a> |
| if (token != 0xFD) { /* Is data token */ |
| 1a68: 1d 3f cpi r17, 0xFD ; 253 |
| 1a6a: 19 f4 brne .+6 ; 0x1a72 <xmit_datablock+0x2a> |
| 1a6c: 81 e0 ldi r24, 0x01 ; 1 |
| 1a6e: 90 e0 ldi r25, 0x00 ; 0 |
| 1a70: 28 c0 rjmp .+80 ; 0x1ac2 <xmit_datablock+0x7a> |
| 1a72: 90 e0 ldi r25, 0x00 ; 0 |
| wc = 0; |
| do { /* Xmit the 512 byte data block to MMC */ |
| xmit_spi(*buff++); |
| 1a74: 88 81 ld r24, Y |
| 1a76: 8e bd out 0x2e, r24 ; 46 |
| 1a78: 0d b4 in r0, 0x2d ; 45 |
| 1a7a: 07 fe sbrs r0, 7 |
| 1a7c: fd cf rjmp .-6 ; 0x1a78 <xmit_datablock+0x30> |
| xmit_spi(*buff++); |
| 1a7e: 89 81 ldd r24, Y+1 ; 0x01 |
| 1a80: 8e bd out 0x2e, r24 ; 46 |
| 1a82: 0d b4 in r0, 0x2d ; 45 |
| 1a84: 07 fe sbrs r0, 7 |
| 1a86: fd cf rjmp .-6 ; 0x1a82 <xmit_datablock+0x3a> |
| } while (--wc); |
| 1a88: 91 50 subi r25, 0x01 ; 1 |
| 1a8a: 11 f0 breq .+4 ; 0x1a90 <xmit_datablock+0x48> |
| 1a8c: 22 96 adiw r28, 0x02 ; 2 |
| 1a8e: f2 cf rjmp .-28 ; 0x1a74 <xmit_datablock+0x2c> |
| xmit_spi(0xFF); /* CRC (Dummy) */ |
| 1a90: 8f ef ldi r24, 0xFF ; 255 |
| 1a92: 8e bd out 0x2e, r24 ; 46 |
| 1a94: 0d b4 in r0, 0x2d ; 45 |
| 1a96: 07 fe sbrs r0, 7 |
| 1a98: fd cf rjmp .-6 ; 0x1a94 <xmit_datablock+0x4c> |
| xmit_spi(0xFF); |
| 1a9a: 8f ef ldi r24, 0xFF ; 255 |
| 1a9c: 8e bd out 0x2e, r24 ; 46 |
| 1a9e: 0d b4 in r0, 0x2d ; 45 |
| 1aa0: 07 fe sbrs r0, 7 |
| 1aa2: fd cf rjmp .-6 ; 0x1a9e <xmit_datablock+0x56> |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1aa4: 8f ef ldi r24, 0xFF ; 255 |
| 1aa6: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1aa8: 0d b4 in r0, 0x2d ; 45 |
| 1aaa: 07 fe sbrs r0, 7 |
| 1aac: fd cf rjmp .-6 ; 0x1aa8 <xmit_datablock+0x60> |
| return SPDR; |
| 1aae: 8e b5 in r24, 0x2e ; 46 |
| 1ab0: 90 e0 ldi r25, 0x00 ; 0 |
| 1ab2: 8f 71 andi r24, 0x1F ; 31 |
| 1ab4: 85 30 cpi r24, 0x05 ; 5 |
| 1ab6: 09 f0 breq .+2 ; 0x1aba <xmit_datablock+0x72> |
| 1ab8: 91 e0 ldi r25, 0x01 ; 1 |
| 1aba: 81 e0 ldi r24, 0x01 ; 1 |
| 1abc: 98 27 eor r25, r24 |
| 1abe: 89 2f mov r24, r25 |
| 1ac0: 99 27 eor r25, r25 |
| 1ac2: df 91 pop r29 |
| 1ac4: cf 91 pop r28 |
| 1ac6: 1f 91 pop r17 |
| 1ac8: 08 95 ret |
| 00001aca <send_cmd>: |
| static |
| BYTE send_cmd ( |
| BYTE cmd, /* Command byte */ |
| DWORD arg /* Argument */ |
| ) |
| { |
| 1aca: df 92 push r13 |
| 1acc: ef 92 push r14 |
| 1ace: ff 92 push r15 |
| 1ad0: 0f 93 push r16 |
| 1ad2: 1f 93 push r17 |
| 1ad4: d8 2e mov r13, r24 |
| 1ad6: 7a 01 movw r14, r20 |
| 1ad8: 8b 01 movw r16, r22 |
| BYTE n, res; |
| if (wait_ready() != 0xFF) return 0xFF; |
| 1ada: 0e 94 d3 0c call 0x19a6 ; 0x19a6 <wait_ready> |
| 1ade: 8f 3f cpi r24, 0xFF ; 255 |
| 1ae0: 19 f0 breq .+6 ; 0x1ae8 <send_cmd+0x1e> |
| 1ae2: 2f ef ldi r18, 0xFF ; 255 |
| 1ae4: 30 e0 ldi r19, 0x00 ; 0 |
| 1ae6: 44 c0 rjmp .+136 ; 0x1b70 <send_cmd+0xa6> |
| /* Send command packet */ |
| xmit_spi(cmd); /* Command */ |
| 1ae8: de bc out 0x2e, r13 ; 46 |
| 1aea: 0d b4 in r0, 0x2d ; 45 |
| 1aec: 07 fe sbrs r0, 7 |
| 1aee: fd cf rjmp .-6 ; 0x1aea <send_cmd+0x20> |
| xmit_spi((BYTE)(arg >> 24)); /* Argument[31..24] */ |
| 1af0: 81 2f mov r24, r17 |
| 1af2: 99 27 eor r25, r25 |
| 1af4: aa 27 eor r26, r26 |
| 1af6: bb 27 eor r27, r27 |
| 1af8: 8e bd out 0x2e, r24 ; 46 |
| 1afa: 0d b4 in r0, 0x2d ; 45 |
| 1afc: 07 fe sbrs r0, 7 |
| 1afe: fd cf rjmp .-6 ; 0x1afa <send_cmd+0x30> |
| xmit_spi((BYTE)(arg >> 16)); /* Argument[23..16] */ |
| 1b00: c8 01 movw r24, r16 |
| 1b02: aa 27 eor r26, r26 |
| 1b04: bb 27 eor r27, r27 |
| 1b06: 8e bd out 0x2e, r24 ; 46 |
| 1b08: 0d b4 in r0, 0x2d ; 45 |
| 1b0a: 07 fe sbrs r0, 7 |
| 1b0c: fd cf rjmp .-6 ; 0x1b08 <send_cmd+0x3e> |
| xmit_spi((BYTE)(arg >> 8)); /* Argument[15..8] */ |
| 1b0e: bb 27 eor r27, r27 |
| 1b10: a1 2f mov r26, r17 |
| 1b12: 90 2f mov r25, r16 |
| 1b14: 8f 2d mov r24, r15 |
| 1b16: 8e bd out 0x2e, r24 ; 46 |
| 1b18: 0d b4 in r0, 0x2d ; 45 |
| 1b1a: 07 fe sbrs r0, 7 |
| 1b1c: fd cf rjmp .-6 ; 0x1b18 <send_cmd+0x4e> |
| xmit_spi((BYTE)arg); /* Argument[7..0] */ |
| 1b1e: ee bc out 0x2e, r14 ; 46 |
| 1b20: 0d b4 in r0, 0x2d ; 45 |
| 1b22: 07 fe sbrs r0, 7 |
| 1b24: fd cf rjmp .-6 ; 0x1b20 <send_cmd+0x56> |
| n = 0; |
| if (cmd == CMD0) n = 0x95; /* CRC for CMD0(0) */ |
| 1b26: 80 e4 ldi r24, 0x40 ; 64 |
| 1b28: d8 16 cp r13, r24 |
| 1b2a: 11 f4 brne .+4 ; 0x1b30 <send_cmd+0x66> |
| 1b2c: 85 e9 ldi r24, 0x95 ; 149 |
| 1b2e: 06 c0 rjmp .+12 ; 0x1b3c <send_cmd+0x72> |
| if (cmd == CMD8) n = 0x87; /* CRC for CMD8(0x1AA) */ |
| 1b30: 88 e4 ldi r24, 0x48 ; 72 |
| 1b32: d8 16 cp r13, r24 |
| 1b34: 11 f4 brne .+4 ; 0x1b3a <send_cmd+0x70> |
| 1b36: 87 e8 ldi r24, 0x87 ; 135 |
| 1b38: 01 c0 rjmp .+2 ; 0x1b3c <send_cmd+0x72> |
| 1b3a: 80 e0 ldi r24, 0x00 ; 0 |
| xmit_spi(n); |
| 1b3c: 8e bd out 0x2e, r24 ; 46 |
| 1b3e: 0d b4 in r0, 0x2d ; 45 |
| 1b40: 07 fe sbrs r0, 7 |
| 1b42: fd cf rjmp .-6 ; 0x1b3e <send_cmd+0x74> |
| /* Receive command response */ |
| if (cmd == CMD12) rcvr_spi(); /* Skip a stuff byte when stop reading */ |
| 1b44: 8c e4 ldi r24, 0x4C ; 76 |
| 1b46: d8 16 cp r13, r24 |
| 1b48: 31 f4 brne .+12 ; 0x1b56 <send_cmd+0x8c> |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1b4a: 8f ef ldi r24, 0xFF ; 255 |
| 1b4c: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1b4e: 0d b4 in r0, 0x2d ; 45 |
| 1b50: 07 fe sbrs r0, 7 |
| 1b52: fd cf rjmp .-6 ; 0x1b4e <send_cmd+0x84> |
| return SPDR; |
| 1b54: 8e b5 in r24, 0x2e ; 46 |
| 1b56: 9a e0 ldi r25, 0x0A ; 10 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1b58: 8f ef ldi r24, 0xFF ; 255 |
| 1b5a: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1b5c: 0d b4 in r0, 0x2d ; 45 |
| 1b5e: 07 fe sbrs r0, 7 |
| 1b60: fd cf rjmp .-6 ; 0x1b5c <send_cmd+0x92> |
| return SPDR; |
| 1b62: 8e b5 in r24, 0x2e ; 46 |
| 1b64: 28 2f mov r18, r24 |
| 1b66: 33 27 eor r19, r19 |
| /* Receive command response */ |
| if (cmd == CMD12) rcvr_spi(); /* Skip a stuff byte when stop reading */ |
| n = 10; /* Wait for a valid response in timeout of 10 attempts */ |
| do |
| res = rcvr_spi(); |
| while ((res & 0x80) && --n); |
| 1b68: 87 ff sbrs r24, 7 |
| 1b6a: 02 c0 rjmp .+4 ; 0x1b70 <send_cmd+0xa6> |
| 1b6c: 91 50 subi r25, 0x01 ; 1 |
| 1b6e: a1 f7 brne .-24 ; 0x1b58 <send_cmd+0x8e> |
| return res; /* Return with the response value */ |
| } |
| 1b70: c9 01 movw r24, r18 |
| 1b72: 1f 91 pop r17 |
| 1b74: 0f 91 pop r16 |
| 1b76: ff 90 pop r15 |
| 1b78: ef 90 pop r14 |
| 1b7a: df 90 pop r13 |
| 1b7c: 08 95 ret |
| 00001b7e <disk_status>: |
| /*-----------------------------------------------------------------------*/ |
| DSTATUS disk_status ( |
| BYTE drv /* Physical drive nmuber (0) */ |
| ) |
| { |
| 1b7e: 88 23 and r24, r24 |
| 1b80: 19 f0 breq .+6 ; 0x1b88 <disk_status+0xa> |
| if (drv) return STA_NOINIT; /* Supports only single drive */ |
| 1b82: 81 e0 ldi r24, 0x01 ; 1 |
| 1b84: 90 e0 ldi r25, 0x00 ; 0 |
| 1b86: 08 95 ret |
| return Stat; |
| 1b88: 80 91 04 01 lds r24, 0x0104 |
| 1b8c: 99 27 eor r25, r25 |
| } |
| 1b8e: 08 95 ret |
| 00001b90 <disk_timerproc>: |
| /* Device timer interrupt procedure */ |
| /* This must be called in period of 10ms */ |
| /* (Platform dependent) */ |
| void disk_timerproc (void) |
| { |
| 1b90: 80 91 0f 01 lds r24, 0x010F |
| static BYTE pv; |
| BYTE n, s; |
| n = Timer1; /* 100Hz decrement timer */ |
| if (n) Timer1 = --n; |
| 1b94: 88 23 and r24, r24 |
| 1b96: 19 f0 breq .+6 ; 0x1b9e <disk_timerproc+0xe> |
| 1b98: 81 50 subi r24, 0x01 ; 1 |
| 1b9a: 80 93 0f 01 sts 0x010F, r24 |
| n = Timer2; |
| 1b9e: 80 91 10 01 lds r24, 0x0110 |
| if (n) Timer2 = --n; |
| 1ba2: 88 23 and r24, r24 |
| 1ba4: 19 f0 breq .+6 ; 0x1bac <disk_timerproc+0x1c> |
| 1ba6: 81 50 subi r24, 0x01 ; 1 |
| 1ba8: 80 93 10 01 sts 0x0110, r24 |
| n = pv; |
| 1bac: 90 91 0e 01 lds r25, 0x010E |
| pv = SOCKPORT & (SOCKINS); /* Sample socket switch */ |
| 1bb0: 83 b1 in r24, 0x03 ; 3 |
| 1bb2: 81 70 andi r24, 0x01 ; 1 |
| 1bb4: 80 93 0e 01 sts 0x010E, r24 |
| if (n == pv) { /* Have contacts stabled? */ |
| 1bb8: 98 17 cp r25, r24 |
| 1bba: 49 f4 brne .+18 ; 0x1bce <disk_timerproc+0x3e> |
| s = Stat; |
| 1bbc: 80 91 04 01 lds r24, 0x0104 |
| if (pv & SOCKINS) /* INS = H (Socket empty) */ |
| 1bc0: 90 ff sbrs r25, 0 |
| 1bc2: 02 c0 rjmp .+4 ; 0x1bc8 <disk_timerproc+0x38> |
| s |= (STA_NODISK | STA_NOINIT); |
| 1bc4: 83 60 ori r24, 0x03 ; 3 |
| 1bc6: 01 c0 rjmp .+2 ; 0x1bca <disk_timerproc+0x3a> |
| else /* INS = L (Card inserted) */ |
| s &= ~STA_NODISK; |
| 1bc8: 8d 7f andi r24, 0xFD ; 253 |
| Stat = s; |
| 1bca: 80 93 04 01 sts 0x0104, r24 |
| 1bce: 08 95 ret |
| 00001bd0 <disk_ioctl>: |
| DRESULT disk_ioctl ( |
| BYTE drv, /* Physical drive nmuber (0) */ |
| BYTE ctrl, /* Control code */ |
| void *buff /* Buffer to send/receive data block */ |
| ) |
| { |
| 1bd0: a0 e1 ldi r26, 0x10 ; 16 |
| 1bd2: b0 e0 ldi r27, 0x00 ; 0 |
| 1bd4: ee ee ldi r30, 0xEE ; 238 |
| 1bd6: fd e0 ldi r31, 0x0D ; 13 |
| 1bd8: 0c 94 38 11 jmp 0x2270 ; 0x2270 <__prologue_saves__+0x1c> |
| 1bdc: fa 01 movw r30, r20 |
| DRESULT res; |
| BYTE n, csd[16], *ptr = buff; |
| WORD csize; |
| if (drv) return RES_PARERR; |
| 1bde: 88 23 and r24, r24 |
| 1be0: 19 f0 breq .+6 ; 0x1be8 <disk_ioctl+0x18> |
| 1be2: 24 e0 ldi r18, 0x04 ; 4 |
| 1be4: 30 e0 ldi r19, 0x00 ; 0 |
| 1be6: da c0 rjmp .+436 ; 0x1d9c <disk_ioctl+0x1cc> |
| BYTE ctrl, /* Control code */ |
| void *buff /* Buffer to send/receive data block */ |
| ) |
| { |
| DRESULT res; |
| BYTE n, csd[16], *ptr = buff; |
| 1be8: 8a 01 movw r16, r20 |
| WORD csize; |
| if (drv) return RES_PARERR; |
| SELECT(); /* CS = L */ |
| 1bea: 2a 98 cbi 0x05, 2 ; 5 |
| res = RES_ERROR; |
| switch (ctrl) { |
| 1bec: 63 30 cpi r22, 0x03 ; 3 |
| 1bee: 09 f4 brne .+2 ; 0x1bf2 <disk_ioctl+0x22> |
| 1bf0: 82 c0 rjmp .+260 ; 0x1cf6 <disk_ioctl+0x126> |
| 1bf2: 64 30 cpi r22, 0x04 ; 4 |
| 1bf4: 28 f4 brcc .+10 ; 0x1c00 <disk_ioctl+0x30> |
| 1bf6: 61 30 cpi r22, 0x01 ; 1 |
| 1bf8: 79 f0 breq .+30 ; 0x1c18 <disk_ioctl+0x48> |
| 1bfa: 62 30 cpi r22, 0x02 ; 2 |
| 1bfc: 51 f4 brne .+20 ; 0x1c12 <disk_ioctl+0x42> |
| 1bfe: 74 c0 rjmp .+232 ; 0x1ce8 <disk_ioctl+0x118> |
| 1c00: 6b 30 cpi r22, 0x0B ; 11 |
| 1c02: 09 f4 brne .+2 ; 0x1c06 <disk_ioctl+0x36> |
| 1c04: 88 c0 rjmp .+272 ; 0x1d16 <disk_ioctl+0x146> |
| 1c06: 6c 30 cpi r22, 0x0C ; 12 |
| 1c08: 09 f4 brne .+2 ; 0x1c0c <disk_ioctl+0x3c> |
| 1c0a: 9f c0 rjmp .+318 ; 0x1d4a <disk_ioctl+0x17a> |
| 1c0c: 6a 30 cpi r22, 0x0A ; 10 |
| 1c0e: 09 f4 brne .+2 ; 0x1c12 <disk_ioctl+0x42> |
| 1c10: 78 c0 rjmp .+240 ; 0x1d02 <disk_ioctl+0x132> |
| 1c12: 24 e0 ldi r18, 0x04 ; 4 |
| 1c14: 30 e0 ldi r19, 0x00 ; 0 |
| 1c16: b8 c0 rjmp .+368 ; 0x1d88 <disk_ioctl+0x1b8> |
| case GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */ |
| if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) { |
| 1c18: 40 e0 ldi r20, 0x00 ; 0 |
| 1c1a: 50 e0 ldi r21, 0x00 ; 0 |
| 1c1c: 60 e0 ldi r22, 0x00 ; 0 |
| 1c1e: 70 e0 ldi r23, 0x00 ; 0 |
| 1c20: 89 e4 ldi r24, 0x49 ; 73 |
| 1c22: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1c26: 88 23 and r24, r24 |
| 1c28: 09 f0 breq .+2 ; 0x1c2c <disk_ioctl+0x5c> |
| 1c2a: ac c0 rjmp .+344 ; 0x1d84 <disk_ioctl+0x1b4> |
| 1c2c: 60 e1 ldi r22, 0x10 ; 16 |
| 1c2e: 70 e0 ldi r23, 0x00 ; 0 |
| 1c30: ce 01 movw r24, r28 |
| 1c32: 01 96 adiw r24, 0x01 ; 1 |
| 1c34: 0e 94 ec 0c call 0x19d8 ; 0x19d8 <rcvr_datablock> |
| 1c38: 88 23 and r24, r24 |
| 1c3a: 09 f4 brne .+2 ; 0x1c3e <disk_ioctl+0x6e> |
| 1c3c: a3 c0 rjmp .+326 ; 0x1d84 <disk_ioctl+0x1b4> |
| if ((csd[0] >> 6) == 1) { /* SDC ver 2.00 */ |
| 1c3e: 89 81 ldd r24, Y+1 ; 0x01 |
| 1c40: 82 95 swap r24 |
| 1c42: 86 95 lsr r24 |
| 1c44: 86 95 lsr r24 |
| 1c46: 83 70 andi r24, 0x03 ; 3 |
| 1c48: 7a 85 ldd r23, Y+10 ; 0x0a |
| 1c4a: 49 85 ldd r20, Y+9 ; 0x09 |
| 1c4c: 81 30 cpi r24, 0x01 ; 1 |
| 1c4e: c1 f4 brne .+48 ; 0x1c80 <disk_ioctl+0xb0> |
| csize = csd[9] + ((WORD)csd[8] << 8) + 1; |
| *(DWORD*)buff = (DWORD)csize << 10; |
| 1c50: 87 2f mov r24, r23 |
| 1c52: 99 27 eor r25, r25 |
| 1c54: 01 96 adiw r24, 0x01 ; 1 |
| 1c56: 24 2f mov r18, r20 |
| 1c58: 33 27 eor r19, r19 |
| 1c5a: 32 2f mov r19, r18 |
| 1c5c: 22 27 eor r18, r18 |
| 1c5e: 82 0f add r24, r18 |
| 1c60: 93 1f adc r25, r19 |
| 1c62: aa 27 eor r26, r26 |
| 1c64: bb 27 eor r27, r27 |
| 1c66: 6a e0 ldi r22, 0x0A ; 10 |
| 1c68: 88 0f add r24, r24 |
| 1c6a: 99 1f adc r25, r25 |
| 1c6c: aa 1f adc r26, r26 |
| 1c6e: bb 1f adc r27, r27 |
| 1c70: 6a 95 dec r22 |
| 1c72: d1 f7 brne .-12 ; 0x1c68 <disk_ioctl+0x98> |
| 1c74: f8 01 movw r30, r16 |
| 1c76: 80 83 st Z, r24 |
| 1c78: 91 83 std Z+1, r25 ; 0x01 |
| 1c7a: a2 83 std Z+2, r26 ; 0x02 |
| 1c7c: b3 83 std Z+3, r27 ; 0x03 |
| 1c7e: 38 c0 rjmp .+112 ; 0x1cf0 <disk_ioctl+0x120> |
| } else { /* MMC or SDC ver 1.XX */ |
| n = (csd[5] & 15) + ((csd[10] & 128) >> 7) + ((csd[9] & 3) << 1) + 2; |
| csize = (csd[8] >> 6) + ((WORD)csd[7] << 2) + ((WORD)(csd[6] & 3) << 10) + 1; |
| *(DWORD*)buff = (DWORD)csize << (n - 9); |
| 1c80: 42 95 swap r20 |
| 1c82: 46 95 lsr r20 |
| 1c84: 46 95 lsr r20 |
| 1c86: 43 70 andi r20, 0x03 ; 3 |
| 1c88: 28 85 ldd r18, Y+8 ; 0x08 |
| 1c8a: 33 27 eor r19, r19 |
| 1c8c: 22 0f add r18, r18 |
| 1c8e: 33 1f adc r19, r19 |
| 1c90: 22 0f add r18, r18 |
| 1c92: 33 1f adc r19, r19 |
| 1c94: 24 0f add r18, r20 |
| 1c96: 31 1d adc r19, r1 |
| 1c98: 2f 5f subi r18, 0xFF ; 255 |
| 1c9a: 3f 4f sbci r19, 0xFF ; 255 |
| 1c9c: 8f 81 ldd r24, Y+7 ; 0x07 |
| 1c9e: 99 27 eor r25, r25 |
| 1ca0: 83 70 andi r24, 0x03 ; 3 |
| 1ca2: 90 70 andi r25, 0x00 ; 0 |
| 1ca4: 98 2f mov r25, r24 |
| 1ca6: 88 27 eor r24, r24 |
| 1ca8: 99 0f add r25, r25 |
| 1caa: 99 0f add r25, r25 |
| 1cac: 28 0f add r18, r24 |
| 1cae: 39 1f adc r19, r25 |
| 1cb0: 44 27 eor r20, r20 |
| 1cb2: 55 27 eor r21, r21 |
| 1cb4: 6e 81 ldd r22, Y+6 ; 0x06 |
| 1cb6: 6f 70 andi r22, 0x0F ; 15 |
| 1cb8: 6e 5f subi r22, 0xFE ; 254 |
| 1cba: 73 70 andi r23, 0x03 ; 3 |
| 1cbc: 77 0f add r23, r23 |
| 1cbe: 67 0f add r22, r23 |
| 1cc0: 8b 85 ldd r24, Y+11 ; 0x0b |
| 1cc2: 88 1f adc r24, r24 |
| 1cc4: 88 27 eor r24, r24 |
| 1cc6: 88 1f adc r24, r24 |
| 1cc8: 86 0f add r24, r22 |
| 1cca: 99 27 eor r25, r25 |
| 1ccc: 09 97 sbiw r24, 0x09 ; 9 |
| 1cce: 04 c0 rjmp .+8 ; 0x1cd8 <disk_ioctl+0x108> |
| 1cd0: 22 0f add r18, r18 |
| 1cd2: 33 1f adc r19, r19 |
| 1cd4: 44 1f adc r20, r20 |
| 1cd6: 55 1f adc r21, r21 |
| 1cd8: 8a 95 dec r24 |
| 1cda: d2 f7 brpl .-12 ; 0x1cd0 <disk_ioctl+0x100> |
| 1cdc: f8 01 movw r30, r16 |
| 1cde: 20 83 st Z, r18 |
| 1ce0: 31 83 std Z+1, r19 ; 0x01 |
| 1ce2: 42 83 std Z+2, r20 ; 0x02 |
| 1ce4: 53 83 std Z+3, r21 ; 0x03 |
| 1ce6: 04 c0 rjmp .+8 ; 0x1cf0 <disk_ioctl+0x120> |
| res = RES_OK; |
| } |
| break; |
| case GET_SECTOR_SIZE : /* Get sectors on the disk (WORD) */ |
| *(WORD*)buff = 512; |
| 1ce8: 80 e0 ldi r24, 0x00 ; 0 |
| 1cea: 92 e0 ldi r25, 0x02 ; 2 |
| 1cec: 91 83 std Z+1, r25 ; 0x01 |
| 1cee: 80 83 st Z, r24 |
| 1cf0: 20 e0 ldi r18, 0x00 ; 0 |
| 1cf2: 30 e0 ldi r19, 0x00 ; 0 |
| 1cf4: 49 c0 rjmp .+146 ; 0x1d88 <disk_ioctl+0x1b8> |
| res = RES_OK; |
| break; |
| case CTRL_SYNC : /* Make sure that data has been written */ |
| if (wait_ready() == 0xFF) |
| 1cf6: 0e 94 d3 0c call 0x19a6 ; 0x19a6 <wait_ready> |
| 1cfa: 90 e0 ldi r25, 0x00 ; 0 |
| 1cfc: 8f 3f cpi r24, 0xFF ; 255 |
| 1cfe: 01 f5 brne .+64 ; 0x1d40 <disk_ioctl+0x170> |
| 1d00: 1e c0 rjmp .+60 ; 0x1d3e <disk_ioctl+0x16e> |
| res = RES_OK; |
| break; |
| case MMC_GET_CSD : /* Receive CSD as a data block (16 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| 1d02: 80 91 04 01 lds r24, 0x0104 |
| 1d06: 80 fd sbrc r24, 0 |
| 1d08: 47 c0 rjmp .+142 ; 0x1d98 <disk_ioctl+0x1c8> |
| if ((send_cmd(CMD9, 0) == 0) /* READ_CSD */ |
| 1d0a: 40 e0 ldi r20, 0x00 ; 0 |
| 1d0c: 50 e0 ldi r21, 0x00 ; 0 |
| 1d0e: 60 e0 ldi r22, 0x00 ; 0 |
| 1d10: 70 e0 ldi r23, 0x00 ; 0 |
| 1d12: 89 e4 ldi r24, 0x49 ; 73 |
| 1d14: 09 c0 rjmp .+18 ; 0x1d28 <disk_ioctl+0x158> |
| && rcvr_datablock(ptr, 16)) |
| res = RES_OK; |
| break; |
| case MMC_GET_CID : /* Receive CID as a data block (16 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| 1d16: 80 91 04 01 lds r24, 0x0104 |
| 1d1a: 80 fd sbrc r24, 0 |
| 1d1c: 3d c0 rjmp .+122 ; 0x1d98 <disk_ioctl+0x1c8> |
| if ((send_cmd(CMD10, 0) == 0) /* READ_CID */ |
| 1d1e: 40 e0 ldi r20, 0x00 ; 0 |
| 1d20: 50 e0 ldi r21, 0x00 ; 0 |
| 1d22: 60 e0 ldi r22, 0x00 ; 0 |
| 1d24: 70 e0 ldi r23, 0x00 ; 0 |
| 1d26: 8a e4 ldi r24, 0x4A ; 74 |
| 1d28: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1d2c: 88 23 and r24, r24 |
| 1d2e: 51 f5 brne .+84 ; 0x1d84 <disk_ioctl+0x1b4> |
| 1d30: 60 e1 ldi r22, 0x10 ; 16 |
| 1d32: 70 e0 ldi r23, 0x00 ; 0 |
| 1d34: c8 01 movw r24, r16 |
| 1d36: 0e 94 ec 0c call 0x19d8 ; 0x19d8 <rcvr_datablock> |
| 1d3a: 90 e0 ldi r25, 0x00 ; 0 |
| 1d3c: 81 11 cpse r24, r1 |
| 1d3e: 91 e0 ldi r25, 0x01 ; 1 |
| 1d40: 81 e0 ldi r24, 0x01 ; 1 |
| 1d42: 98 27 eor r25, r24 |
| 1d44: 29 2f mov r18, r25 |
| 1d46: 33 27 eor r19, r19 |
| 1d48: 1f c0 rjmp .+62 ; 0x1d88 <disk_ioctl+0x1b8> |
| && rcvr_datablock(ptr, 16)) |
| res = RES_OK; |
| break; |
| case MMC_GET_OCR : /* Receive OCR as an R3 resp (4 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| 1d4a: 80 91 04 01 lds r24, 0x0104 |
| 1d4e: 80 fd sbrc r24, 0 |
| 1d50: 23 c0 rjmp .+70 ; 0x1d98 <disk_ioctl+0x1c8> |
| if (send_cmd(CMD58, 0) == 0) { /* READ_OCR */ |
| 1d52: 40 e0 ldi r20, 0x00 ; 0 |
| 1d54: 50 e0 ldi r21, 0x00 ; 0 |
| 1d56: 60 e0 ldi r22, 0x00 ; 0 |
| 1d58: 70 e0 ldi r23, 0x00 ; 0 |
| 1d5a: 8a e7 ldi r24, 0x7A ; 122 |
| 1d5c: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1d60: 88 23 and r24, r24 |
| 1d62: 81 f4 brne .+32 ; 0x1d84 <disk_ioctl+0x1b4> |
| 1d64: 90 e0 ldi r25, 0x00 ; 0 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1d66: 8f ef ldi r24, 0xFF ; 255 |
| 1d68: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1d6a: 0d b4 in r0, 0x2d ; 45 |
| 1d6c: 07 fe sbrs r0, 7 |
| 1d6e: fd cf rjmp .-6 ; 0x1d6a <disk_ioctl+0x19a> |
| return SPDR; |
| 1d70: 8e b5 in r24, 0x2e ; 46 |
| case MMC_GET_OCR : /* Receive OCR as an R3 resp (4 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| if (send_cmd(CMD58, 0) == 0) { /* READ_OCR */ |
| for (n = 0; n < 4; n++) |
| *ptr++ = rcvr_spi(); |
| 1d72: f8 01 movw r30, r16 |
| 1d74: 80 83 st Z, r24 |
| break; |
| case MMC_GET_OCR : /* Receive OCR as an R3 resp (4 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| if (send_cmd(CMD58, 0) == 0) { /* READ_OCR */ |
| for (n = 0; n < 4; n++) |
| 1d76: 9f 5f subi r25, 0xFF ; 255 |
| 1d78: 94 30 cpi r25, 0x04 ; 4 |
| 1d7a: 09 f4 brne .+2 ; 0x1d7e <disk_ioctl+0x1ae> |
| 1d7c: b9 cf rjmp .-142 ; 0x1cf0 <disk_ioctl+0x120> |
| *ptr++ = rcvr_spi(); |
| 1d7e: 0f 5f subi r16, 0xFF ; 255 |
| 1d80: 1f 4f sbci r17, 0xFF ; 255 |
| 1d82: f1 cf rjmp .-30 ; 0x1d66 <disk_ioctl+0x196> |
| 1d84: 21 e0 ldi r18, 0x01 ; 1 |
| 1d86: 30 e0 ldi r19, 0x00 ; 0 |
| default: |
| res = RES_PARERR; |
| } |
| DESELECT(); /* CS = H */ |
| 1d88: 2a 9a sbi 0x05, 2 ; 5 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1d8a: 8f ef ldi r24, 0xFF ; 255 |
| 1d8c: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1d8e: 0d b4 in r0, 0x2d ; 45 |
| 1d90: 07 fe sbrs r0, 7 |
| 1d92: fd cf rjmp .-6 ; 0x1d8e <disk_ioctl+0x1be> |
| return SPDR; |
| 1d94: 8e b5 in r24, 0x2e ; 46 |
| 1d96: 02 c0 rjmp .+4 ; 0x1d9c <disk_ioctl+0x1cc> |
| } |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| return res; |
| 1d98: 23 e0 ldi r18, 0x03 ; 3 |
| 1d9a: 30 e0 ldi r19, 0x00 ; 0 |
| } |
| 1d9c: c9 01 movw r24, r18 |
| 1d9e: e4 e0 ldi r30, 0x04 ; 4 |
| 1da0: 60 96 adiw r28, 0x10 ; 16 |
| 1da2: 0c 94 54 11 jmp 0x22a8 ; 0x22a8 <__epilogue_restores__+0x1c> |
| 00001da6 <disk_write>: |
| BYTE drv, /* Physical drive nmuber (0) */ |
| const BYTE *buff, /* Pointer to the data to be written */ |
| DWORD sector, /* Start sector number (LBA) */ |
| BYTE count /* Sector count (1..255) */ |
| ) |
| { |
| 1da6: cf 92 push r12 |
| 1da8: df 92 push r13 |
| 1daa: ef 92 push r14 |
| 1dac: ff 92 push r15 |
| 1dae: 0f 93 push r16 |
| 1db0: cf 93 push r28 |
| 1db2: df 93 push r29 |
| 1db4: eb 01 movw r28, r22 |
| 1db6: 69 01 movw r12, r18 |
| 1db8: 7a 01 movw r14, r20 |
| if (drv || !count) return RES_PARERR; |
| 1dba: 88 23 and r24, r24 |
| 1dbc: 09 f0 breq .+2 ; 0x1dc0 <disk_write+0x1a> |
| 1dbe: 67 c0 rjmp .+206 ; 0x1e8e <disk_write+0xe8> |
| 1dc0: 00 23 and r16, r16 |
| 1dc2: 09 f4 brne .+2 ; 0x1dc6 <disk_write+0x20> |
| 1dc4: 64 c0 rjmp .+200 ; 0x1e8e <disk_write+0xe8> |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| 1dc6: 80 91 04 01 lds r24, 0x0104 |
| 1dca: 80 ff sbrs r24, 0 |
| 1dcc: 03 c0 rjmp .+6 ; 0x1dd4 <disk_write+0x2e> |
| 1dce: 83 e0 ldi r24, 0x03 ; 3 |
| 1dd0: 90 e0 ldi r25, 0x00 ; 0 |
| 1dd2: 5f c0 rjmp .+190 ; 0x1e92 <disk_write+0xec> |
| if (Stat & STA_PROTECT) return RES_WRPRT; |
| 1dd4: 80 91 04 01 lds r24, 0x0104 |
| 1dd8: 82 ff sbrs r24, 2 |
| 1dda: 03 c0 rjmp .+6 ; 0x1de2 <disk_write+0x3c> |
| 1ddc: 82 e0 ldi r24, 0x02 ; 2 |
| 1dde: 90 e0 ldi r25, 0x00 ; 0 |
| 1de0: 58 c0 rjmp .+176 ; 0x1e92 <disk_write+0xec> |
| if (!(CardType & 4)) sector *= 512; /* Convert to byte address if needed */ |
| 1de2: 80 91 11 01 lds r24, 0x0111 |
| 1de6: 99 27 eor r25, r25 |
| 1de8: 82 fd sbrc r24, 2 |
| 1dea: 07 c0 rjmp .+14 ; 0x1dfa <disk_write+0x54> |
| 1dec: e9 e0 ldi r30, 0x09 ; 9 |
| 1dee: cc 0c add r12, r12 |
| 1df0: dd 1c adc r13, r13 |
| 1df2: ee 1c adc r14, r14 |
| 1df4: ff 1c adc r15, r15 |
| 1df6: ea 95 dec r30 |
| 1df8: d1 f7 brne .-12 ; 0x1dee <disk_write+0x48> |
| SELECT(); /* CS = L */ |
| 1dfa: 2a 98 cbi 0x05, 2 ; 5 |
| if (count == 1) { /* Single block write */ |
| 1dfc: 01 30 cpi r16, 0x01 ; 1 |
| 1dfe: 79 f4 brne .+30 ; 0x1e1e <disk_write+0x78> |
| if ((send_cmd(CMD24, sector) == 0) /* WRITE_BLOCK */ |
| 1e00: b7 01 movw r22, r14 |
| 1e02: a6 01 movw r20, r12 |
| 1e04: 88 e5 ldi r24, 0x58 ; 88 |
| 1e06: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1e0a: 88 23 and r24, r24 |
| 1e0c: 91 f5 brne .+100 ; 0x1e72 <disk_write+0xcc> |
| 1e0e: 6e ef ldi r22, 0xFE ; 254 |
| 1e10: ce 01 movw r24, r28 |
| 1e12: 0e 94 24 0d call 0x1a48 ; 0x1a48 <xmit_datablock> |
| 1e16: 81 11 cpse r24, r1 |
| 1e18: 81 e0 ldi r24, 0x01 ; 1 |
| 1e1a: 08 27 eor r16, r24 |
| 1e1c: 2a c0 rjmp .+84 ; 0x1e72 <disk_write+0xcc> |
| && xmit_datablock(buff, 0xFE)) |
| count = 0; |
| } |
| else { /* Multiple block write */ |
| if (CardType & 2) { |
| 1e1e: 81 ff sbrs r24, 1 |
| 1e20: 0e c0 rjmp .+28 ; 0x1e3e <disk_write+0x98> |
| send_cmd(CMD55, 0); send_cmd(CMD23, count); /* ACMD23 */ |
| 1e22: 40 e0 ldi r20, 0x00 ; 0 |
| 1e24: 50 e0 ldi r21, 0x00 ; 0 |
| 1e26: 60 e0 ldi r22, 0x00 ; 0 |
| 1e28: 70 e0 ldi r23, 0x00 ; 0 |
| 1e2a: 87 e7 ldi r24, 0x77 ; 119 |
| 1e2c: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1e30: 40 2f mov r20, r16 |
| 1e32: 55 27 eor r21, r21 |
| 1e34: 66 27 eor r22, r22 |
| 1e36: 77 27 eor r23, r23 |
| 1e38: 87 e5 ldi r24, 0x57 ; 87 |
| 1e3a: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| } |
| if (send_cmd(CMD25, sector) == 0) { /* WRITE_MULTIPLE_BLOCK */ |
| 1e3e: b7 01 movw r22, r14 |
| 1e40: a6 01 movw r20, r12 |
| 1e42: 89 e5 ldi r24, 0x59 ; 89 |
| 1e44: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1e48: 88 23 and r24, r24 |
| 1e4a: 99 f4 brne .+38 ; 0x1e72 <disk_write+0xcc> |
| do { |
| if (!xmit_datablock(buff, 0xFC)) break; |
| 1e4c: 6c ef ldi r22, 0xFC ; 252 |
| 1e4e: ce 01 movw r24, r28 |
| 1e50: 0e 94 24 0d call 0x1a48 ; 0x1a48 <xmit_datablock> |
| 1e54: 88 23 and r24, r24 |
| 1e56: 29 f0 breq .+10 ; 0x1e62 <disk_write+0xbc> |
| buff += 512; |
| } while (--count); |
| 1e58: 01 50 subi r16, 0x01 ; 1 |
| 1e5a: 19 f0 breq .+6 ; 0x1e62 <disk_write+0xbc> |
| send_cmd(CMD55, 0); send_cmd(CMD23, count); /* ACMD23 */ |
| } |
| if (send_cmd(CMD25, sector) == 0) { /* WRITE_MULTIPLE_BLOCK */ |
| do { |
| if (!xmit_datablock(buff, 0xFC)) break; |
| buff += 512; |
| 1e5c: c0 50 subi r28, 0x00 ; 0 |
| 1e5e: de 4f sbci r29, 0xFE ; 254 |
| 1e60: f5 cf rjmp .-22 ; 0x1e4c <disk_write+0xa6> |
| } while (--count); |
| if (!xmit_datablock(0, 0xFD)) /* STOP_TRAN token */ |
| 1e62: 6d ef ldi r22, 0xFD ; 253 |
| 1e64: 80 e0 ldi r24, 0x00 ; 0 |
| 1e66: 90 e0 ldi r25, 0x00 ; 0 |
| 1e68: 0e 94 24 0d call 0x1a48 ; 0x1a48 <xmit_datablock> |
| 1e6c: 88 23 and r24, r24 |
| 1e6e: 09 f4 brne .+2 ; 0x1e72 <disk_write+0xcc> |
| 1e70: 01 e0 ldi r16, 0x01 ; 1 |
| count = 1; |
| } |
| } |
| DESELECT(); /* CS = H */ |
| 1e72: 2a 9a sbi 0x05, 2 ; 5 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1e74: 8f ef ldi r24, 0xFF ; 255 |
| 1e76: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1e78: 0d b4 in r0, 0x2d ; 45 |
| 1e7a: 07 fe sbrs r0, 7 |
| 1e7c: fd cf rjmp .-6 ; 0x1e78 <disk_write+0xd2> |
| return SPDR; |
| 1e7e: 8e b5 in r24, 0x2e ; 46 |
| } |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| return count ? RES_ERROR : RES_OK; |
| 1e80: 80 e0 ldi r24, 0x00 ; 0 |
| 1e82: 90 e0 ldi r25, 0x00 ; 0 |
| 1e84: 00 23 and r16, r16 |
| 1e86: 29 f0 breq .+10 ; 0x1e92 <disk_write+0xec> |
| 1e88: 81 e0 ldi r24, 0x01 ; 1 |
| 1e8a: 90 e0 ldi r25, 0x00 ; 0 |
| 1e8c: 02 c0 rjmp .+4 ; 0x1e92 <disk_write+0xec> |
| 1e8e: 84 e0 ldi r24, 0x04 ; 4 |
| 1e90: 90 e0 ldi r25, 0x00 ; 0 |
| 1e92: df 91 pop r29 |
| 1e94: cf 91 pop r28 |
| 1e96: 0f 91 pop r16 |
| 1e98: ff 90 pop r15 |
| 1e9a: ef 90 pop r14 |
| 1e9c: df 90 pop r13 |
| 1e9e: cf 90 pop r12 |
| 1ea0: 08 95 ret |
| 00001ea2 <disk_read>: |
| BYTE drv, /* Physical drive nmuber (0) */ |
| BYTE *buff, /* Pointer to the data buffer to store read data */ |
| DWORD sector, /* Start sector number (LBA) */ |
| BYTE count /* Sector count (1..255) */ |
| ) |
| { |
| 1ea2: 0f 93 push r16 |
| 1ea4: cf 93 push r28 |
| 1ea6: df 93 push r29 |
| 1ea8: eb 01 movw r28, r22 |
| if (drv || !count) return RES_PARERR; |
| 1eaa: 88 23 and r24, r24 |
| 1eac: 09 f0 breq .+2 ; 0x1eb0 <disk_read+0xe> |
| 1eae: 50 c0 rjmp .+160 ; 0x1f50 <disk_read+0xae> |
| 1eb0: 00 23 and r16, r16 |
| 1eb2: 09 f4 brne .+2 ; 0x1eb6 <disk_read+0x14> |
| 1eb4: 4d c0 rjmp .+154 ; 0x1f50 <disk_read+0xae> |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| 1eb6: 80 91 04 01 lds r24, 0x0104 |
| 1eba: 80 ff sbrs r24, 0 |
| 1ebc: 03 c0 rjmp .+6 ; 0x1ec4 <disk_read+0x22> |
| 1ebe: 83 e0 ldi r24, 0x03 ; 3 |
| 1ec0: 90 e0 ldi r25, 0x00 ; 0 |
| 1ec2: 48 c0 rjmp .+144 ; 0x1f54 <disk_read+0xb2> |
| if (!(CardType & 4)) sector *= 512; /* Convert to byte address if needed */ |
| 1ec4: 80 91 11 01 lds r24, 0x0111 |
| 1ec8: 82 fd sbrc r24, 2 |
| 1eca: 07 c0 rjmp .+14 ; 0x1eda <disk_read+0x38> |
| 1ecc: f9 e0 ldi r31, 0x09 ; 9 |
| 1ece: 22 0f add r18, r18 |
| 1ed0: 33 1f adc r19, r19 |
| 1ed2: 44 1f adc r20, r20 |
| 1ed4: 55 1f adc r21, r21 |
| 1ed6: fa 95 dec r31 |
| 1ed8: d1 f7 brne .-12 ; 0x1ece <disk_read+0x2c> |
| SELECT(); /* CS = L */ |
| 1eda: 2a 98 cbi 0x05, 2 ; 5 |
| if (count == 1) { /* Single block read */ |
| 1edc: 01 30 cpi r16, 0x01 ; 1 |
| 1ede: 81 f4 brne .+32 ; 0x1f00 <disk_read+0x5e> |
| if ((send_cmd(CMD17, sector) == 0) /* READ_SINGLE_BLOCK */ |
| 1ee0: ba 01 movw r22, r20 |
| 1ee2: a9 01 movw r20, r18 |
| 1ee4: 81 e5 ldi r24, 0x51 ; 81 |
| 1ee6: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1eea: 88 23 and r24, r24 |
| 1eec: 19 f5 brne .+70 ; 0x1f34 <disk_read+0x92> |
| 1eee: 60 e0 ldi r22, 0x00 ; 0 |
| 1ef0: 72 e0 ldi r23, 0x02 ; 2 |
| 1ef2: ce 01 movw r24, r28 |
| 1ef4: 0e 94 ec 0c call 0x19d8 ; 0x19d8 <rcvr_datablock> |
| 1ef8: 81 11 cpse r24, r1 |
| 1efa: 81 e0 ldi r24, 0x01 ; 1 |
| 1efc: 08 27 eor r16, r24 |
| 1efe: 1a c0 rjmp .+52 ; 0x1f34 <disk_read+0x92> |
| && rcvr_datablock(buff, 512)) |
| count = 0; |
| } |
| else { /* Multiple block read */ |
| if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */ |
| 1f00: ba 01 movw r22, r20 |
| 1f02: a9 01 movw r20, r18 |
| 1f04: 82 e5 ldi r24, 0x52 ; 82 |
| 1f06: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1f0a: 88 23 and r24, r24 |
| 1f0c: 99 f4 brne .+38 ; 0x1f34 <disk_read+0x92> |
| do { |
| if (!rcvr_datablock(buff, 512)) break; |
| 1f0e: 60 e0 ldi r22, 0x00 ; 0 |
| 1f10: 72 e0 ldi r23, 0x02 ; 2 |
| 1f12: ce 01 movw r24, r28 |
| 1f14: 0e 94 ec 0c call 0x19d8 ; 0x19d8 <rcvr_datablock> |
| 1f18: 88 23 and r24, r24 |
| 1f1a: 29 f0 breq .+10 ; 0x1f26 <disk_read+0x84> |
| buff += 512; |
| } while (--count); |
| 1f1c: 01 50 subi r16, 0x01 ; 1 |
| 1f1e: 19 f0 breq .+6 ; 0x1f26 <disk_read+0x84> |
| } |
| else { /* Multiple block read */ |
| if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */ |
| do { |
| if (!rcvr_datablock(buff, 512)) break; |
| buff += 512; |
| 1f20: c0 50 subi r28, 0x00 ; 0 |
| 1f22: de 4f sbci r29, 0xFE ; 254 |
| 1f24: f4 cf rjmp .-24 ; 0x1f0e <disk_read+0x6c> |
| } while (--count); |
| send_cmd(CMD12, 0); /* STOP_TRANSMISSION */ |
| 1f26: 40 e0 ldi r20, 0x00 ; 0 |
| 1f28: 50 e0 ldi r21, 0x00 ; 0 |
| 1f2a: 60 e0 ldi r22, 0x00 ; 0 |
| 1f2c: 70 e0 ldi r23, 0x00 ; 0 |
| 1f2e: 8c e4 ldi r24, 0x4C ; 76 |
| 1f30: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| } |
| } |
| DESELECT(); /* CS = H */ |
| 1f34: 2a 9a sbi 0x05, 2 ; 5 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1f36: 8f ef ldi r24, 0xFF ; 255 |
| 1f38: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1f3a: 0d b4 in r0, 0x2d ; 45 |
| 1f3c: 07 fe sbrs r0, 7 |
| 1f3e: fd cf rjmp .-6 ; 0x1f3a <disk_read+0x98> |
| return SPDR; |
| 1f40: 8e b5 in r24, 0x2e ; 46 |
| } |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| return count ? RES_ERROR : RES_OK; |
| 1f42: 80 e0 ldi r24, 0x00 ; 0 |
| 1f44: 90 e0 ldi r25, 0x00 ; 0 |
| 1f46: 00 23 and r16, r16 |
| 1f48: 29 f0 breq .+10 ; 0x1f54 <disk_read+0xb2> |
| 1f4a: 81 e0 ldi r24, 0x01 ; 1 |
| 1f4c: 90 e0 ldi r25, 0x00 ; 0 |
| 1f4e: 02 c0 rjmp .+4 ; 0x1f54 <disk_read+0xb2> |
| 1f50: 84 e0 ldi r24, 0x04 ; 4 |
| 1f52: 90 e0 ldi r25, 0x00 ; 0 |
| 1f54: df 91 pop r29 |
| 1f56: cf 91 pop r28 |
| 1f58: 0f 91 pop r16 |
| 1f5a: 08 95 ret |
| 00001f5c <disk_initialize>: |
| /*-----------------------------------------------------------------------*/ |
| DSTATUS disk_initialize ( |
| BYTE drv /* Physical drive nmuber (0) */ |
| ) |
| { |
| 1f5c: a4 e0 ldi r26, 0x04 ; 4 |
| 1f5e: b0 e0 ldi r27, 0x00 ; 0 |
| 1f60: e4 eb ldi r30, 0xB4 ; 180 |
| 1f62: ff e0 ldi r31, 0x0F ; 15 |
| 1f64: 0c 94 36 11 jmp 0x226c ; 0x226c <__prologue_saves__+0x18> |
| BYTE n, ty, ocr[4]; |
| if (drv) return STA_NOINIT; /* Supports only single drive */ |
| 1f68: 88 23 and r24, r24 |
| 1f6a: 19 f0 breq .+6 ; 0x1f72 <disk_initialize+0x16> |
| 1f6c: 81 e0 ldi r24, 0x01 ; 1 |
| 1f6e: 90 e0 ldi r25, 0x00 ; 0 |
| 1f70: d0 c0 rjmp .+416 ; 0x2112 <disk_initialize+0x1b6> |
| if (Stat & STA_NODISK) return Stat; /* No card in the socket */ |
| 1f72: 80 91 04 01 lds r24, 0x0104 |
| 1f76: 81 fd sbrc r24, 1 |
| 1f78: c9 c0 rjmp .+402 ; 0x210c <disk_initialize+0x1b0> |
| 1f7a: 9a e0 ldi r25, 0x0A ; 10 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1f7c: 8f ef ldi r24, 0xFF ; 255 |
| 1f7e: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1f80: 0d b4 in r0, 0x2d ; 45 |
| 1f82: 07 fe sbrs r0, 7 |
| 1f84: fd cf rjmp .-6 ; 0x1f80 <disk_initialize+0x24> |
| return SPDR; |
| 1f86: 8e b5 in r24, 0x2e ; 46 |
| if (drv) return STA_NOINIT; /* Supports only single drive */ |
| if (Stat & STA_NODISK) return Stat; /* No card in the socket */ |
| for (n = 10; n; n--) rcvr_spi(); /* 80 dummy clocks */ |
| 1f88: 91 50 subi r25, 0x01 ; 1 |
| 1f8a: c1 f7 brne .-16 ; 0x1f7c <disk_initialize+0x20> |
| SELECT(); /* CS = L */ |
| 1f8c: 2a 98 cbi 0x05, 2 ; 5 |
| ty = 0; |
| if (send_cmd(CMD0, 0) == 1) { /* Enter Idle state */ |
| 1f8e: 40 e0 ldi r20, 0x00 ; 0 |
| 1f90: 50 e0 ldi r21, 0x00 ; 0 |
| 1f92: 60 e0 ldi r22, 0x00 ; 0 |
| 1f94: 70 e0 ldi r23, 0x00 ; 0 |
| 1f96: 80 e4 ldi r24, 0x40 ; 64 |
| 1f98: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1f9c: 81 30 cpi r24, 0x01 ; 1 |
| 1f9e: 09 f0 breq .+2 ; 0x1fa2 <disk_initialize+0x46> |
| 1fa0: a0 c0 rjmp .+320 ; 0x20e2 <disk_initialize+0x186> |
| Timer1 = 100; /* Initialization timeout of 1000 msec */ |
| 1fa2: 84 e6 ldi r24, 0x64 ; 100 |
| 1fa4: 80 93 0f 01 sts 0x010F, r24 |
| if (send_cmd(CMD8, 0x1AA) == 1) { /* SDC Ver2+ */ |
| 1fa8: 4a ea ldi r20, 0xAA ; 170 |
| 1faa: 51 e0 ldi r21, 0x01 ; 1 |
| 1fac: 60 e0 ldi r22, 0x00 ; 0 |
| 1fae: 70 e0 ldi r23, 0x00 ; 0 |
| 1fb0: 88 e4 ldi r24, 0x48 ; 72 |
| 1fb2: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 1fb6: 81 30 cpi r24, 0x01 ; 1 |
| 1fb8: 09 f0 breq .+2 ; 0x1fbc <disk_initialize+0x60> |
| 1fba: 54 c0 rjmp .+168 ; 0x2064 <disk_initialize+0x108> |
| 1fbc: 7e 01 movw r14, r28 |
| 1fbe: 08 94 sec |
| 1fc0: e1 1c adc r14, r1 |
| 1fc2: f1 1c adc r15, r1 |
| 1fc4: 87 01 movw r16, r14 |
| for (n = 0; n < 4; n++) ocr[n] = rcvr_spi(); |
| 1fc6: 9e 01 movw r18, r28 |
| 1fc8: 2b 5f subi r18, 0xFB ; 251 |
| 1fca: 3f 4f sbci r19, 0xFF ; 255 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 1fcc: 8f ef ldi r24, 0xFF ; 255 |
| 1fce: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 1fd0: 0d b4 in r0, 0x2d ; 45 |
| 1fd2: 07 fe sbrs r0, 7 |
| 1fd4: fd cf rjmp .-6 ; 0x1fd0 <disk_initialize+0x74> |
| return SPDR; |
| 1fd6: 8e b5 in r24, 0x2e ; 46 |
| SELECT(); /* CS = L */ |
| ty = 0; |
| if (send_cmd(CMD0, 0) == 1) { /* Enter Idle state */ |
| Timer1 = 100; /* Initialization timeout of 1000 msec */ |
| if (send_cmd(CMD8, 0x1AA) == 1) { /* SDC Ver2+ */ |
| for (n = 0; n < 4; n++) ocr[n] = rcvr_spi(); |
| 1fd8: f8 01 movw r30, r16 |
| 1fda: 81 93 st Z+, r24 |
| 1fdc: 8f 01 movw r16, r30 |
| 1fde: e2 17 cp r30, r18 |
| 1fe0: f3 07 cpc r31, r19 |
| 1fe2: a1 f7 brne .-24 ; 0x1fcc <disk_initialize+0x70> |
| if (ocr[2] == 0x01 && ocr[3] == 0xAA) { /* The card can work at vdd range of 2.7-3.6V */ |
| 1fe4: 8b 81 ldd r24, Y+3 ; 0x03 |
| 1fe6: 81 30 cpi r24, 0x01 ; 1 |
| 1fe8: 09 f0 breq .+2 ; 0x1fec <disk_initialize+0x90> |
| 1fea: 7b c0 rjmp .+246 ; 0x20e2 <disk_initialize+0x186> |
| 1fec: 8c 81 ldd r24, Y+4 ; 0x04 |
| 1fee: 8a 3a cpi r24, 0xAA ; 170 |
| 1ff0: 09 f0 breq .+2 ; 0x1ff4 <disk_initialize+0x98> |
| 1ff2: 77 c0 rjmp .+238 ; 0x20e2 <disk_initialize+0x186> |
| do { |
| if (send_cmd(CMD55, 0) <= 1 && send_cmd(CMD41, 1UL << 30) == 0) break; /* ACMD41 with HCS bit */ |
| 1ff4: 40 e0 ldi r20, 0x00 ; 0 |
| 1ff6: 50 e0 ldi r21, 0x00 ; 0 |
| 1ff8: 60 e0 ldi r22, 0x00 ; 0 |
| 1ffa: 70 e0 ldi r23, 0x00 ; 0 |
| 1ffc: 87 e7 ldi r24, 0x77 ; 119 |
| 1ffe: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 2002: 82 30 cpi r24, 0x02 ; 2 |
| 2004: 48 f4 brcc .+18 ; 0x2018 <disk_initialize+0xbc> |
| 2006: 40 e0 ldi r20, 0x00 ; 0 |
| 2008: 50 e0 ldi r21, 0x00 ; 0 |
| 200a: 60 e0 ldi r22, 0x00 ; 0 |
| 200c: 70 e4 ldi r23, 0x40 ; 64 |
| 200e: 89 e6 ldi r24, 0x69 ; 105 |
| 2010: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 2014: 88 23 and r24, r24 |
| 2016: 21 f0 breq .+8 ; 0x2020 <disk_initialize+0xc4> |
| } while (Timer1); |
| 2018: 80 91 0f 01 lds r24, 0x010F |
| 201c: 88 23 and r24, r24 |
| 201e: 51 f7 brne .-44 ; 0x1ff4 <disk_initialize+0x98> |
| if (Timer1 && send_cmd(CMD58, 0) == 0) { /* Check CCS bit */ |
| 2020: 80 91 0f 01 lds r24, 0x010F |
| 2024: 88 23 and r24, r24 |
| 2026: 09 f4 brne .+2 ; 0x202a <disk_initialize+0xce> |
| 2028: 5c c0 rjmp .+184 ; 0x20e2 <disk_initialize+0x186> |
| 202a: 40 e0 ldi r20, 0x00 ; 0 |
| 202c: 50 e0 ldi r21, 0x00 ; 0 |
| 202e: 60 e0 ldi r22, 0x00 ; 0 |
| 2030: 70 e0 ldi r23, 0x00 ; 0 |
| 2032: 8a e7 ldi r24, 0x7A ; 122 |
| 2034: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 2038: 88 23 and r24, r24 |
| 203a: 09 f0 breq .+2 ; 0x203e <disk_initialize+0xe2> |
| 203c: 52 c0 rjmp .+164 ; 0x20e2 <disk_initialize+0x186> |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 203e: 8f ef ldi r24, 0xFF ; 255 |
| 2040: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 2042: 0d b4 in r0, 0x2d ; 45 |
| 2044: 07 fe sbrs r0, 7 |
| 2046: fd cf rjmp .-6 ; 0x2042 <disk_initialize+0xe6> |
| return SPDR; |
| 2048: 8e b5 in r24, 0x2e ; 46 |
| if (ocr[2] == 0x01 && ocr[3] == 0xAA) { /* The card can work at vdd range of 2.7-3.6V */ |
| do { |
| if (send_cmd(CMD55, 0) <= 1 && send_cmd(CMD41, 1UL << 30) == 0) break; /* ACMD41 with HCS bit */ |
| } while (Timer1); |
| if (Timer1 && send_cmd(CMD58, 0) == 0) { /* Check CCS bit */ |
| for (n = 0; n < 4; n++) ocr[n] = rcvr_spi(); |
| 204a: f7 01 movw r30, r14 |
| 204c: 81 93 st Z+, r24 |
| 204e: 7f 01 movw r14, r30 |
| 2050: e0 17 cp r30, r16 |
| 2052: f1 07 cpc r31, r17 |
| 2054: a1 f7 brne .-24 ; 0x203e <disk_initialize+0xe2> |
| ty = (ocr[0] & 0x40) ? 6 : 2; |
| 2056: 89 81 ldd r24, Y+1 ; 0x01 |
| 2058: 86 ff sbrs r24, 6 |
| 205a: 02 c0 rjmp .+4 ; 0x2060 <disk_initialize+0x104> |
| 205c: 16 e0 ldi r17, 0x06 ; 6 |
| 205e: 42 c0 rjmp .+132 ; 0x20e4 <disk_initialize+0x188> |
| 2060: 12 e0 ldi r17, 0x02 ; 2 |
| 2062: 40 c0 rjmp .+128 ; 0x20e4 <disk_initialize+0x188> |
| } |
| } |
| } else { /* SDC Ver1 or MMC */ |
| ty = (send_cmd(CMD55, 0) <= 1 && send_cmd(CMD41, 0) <= 1) ? 2 : 1; /* SDC : MMC */ |
| 2064: 40 e0 ldi r20, 0x00 ; 0 |
| 2066: 50 e0 ldi r21, 0x00 ; 0 |
| 2068: 60 e0 ldi r22, 0x00 ; 0 |
| 206a: 70 e0 ldi r23, 0x00 ; 0 |
| 206c: 87 e7 ldi r24, 0x77 ; 119 |
| 206e: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 2072: 82 30 cpi r24, 0x02 ; 2 |
| 2074: 58 f4 brcc .+22 ; 0x208c <disk_initialize+0x130> |
| 2076: 40 e0 ldi r20, 0x00 ; 0 |
| 2078: 50 e0 ldi r21, 0x00 ; 0 |
| 207a: 60 e0 ldi r22, 0x00 ; 0 |
| 207c: 70 e0 ldi r23, 0x00 ; 0 |
| 207e: 89 e6 ldi r24, 0x69 ; 105 |
| 2080: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 2084: 82 30 cpi r24, 0x02 ; 2 |
| 2086: 10 f4 brcc .+4 ; 0x208c <disk_initialize+0x130> |
| 2088: 12 e0 ldi r17, 0x02 ; 2 |
| 208a: 01 c0 rjmp .+2 ; 0x208e <disk_initialize+0x132> |
| 208c: 11 e0 ldi r17, 0x01 ; 1 |
| do { |
| if (ty == 2) { |
| 208e: 12 30 cpi r17, 0x02 ; 2 |
| 2090: 79 f4 brne .+30 ; 0x20b0 <disk_initialize+0x154> |
| if (send_cmd(CMD55, 0) <= 1 && send_cmd(CMD41, 0) == 0) break; /* ACMD41 */ |
| 2092: 40 e0 ldi r20, 0x00 ; 0 |
| 2094: 50 e0 ldi r21, 0x00 ; 0 |
| 2096: 60 e0 ldi r22, 0x00 ; 0 |
| 2098: 70 e0 ldi r23, 0x00 ; 0 |
| 209a: 87 e7 ldi r24, 0x77 ; 119 |
| 209c: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 20a0: 82 30 cpi r24, 0x02 ; 2 |
| 20a2: 78 f4 brcc .+30 ; 0x20c2 <disk_initialize+0x166> |
| 20a4: 40 e0 ldi r20, 0x00 ; 0 |
| 20a6: 50 e0 ldi r21, 0x00 ; 0 |
| 20a8: 60 e0 ldi r22, 0x00 ; 0 |
| 20aa: 70 e0 ldi r23, 0x00 ; 0 |
| 20ac: 89 e6 ldi r24, 0x69 ; 105 |
| 20ae: 05 c0 rjmp .+10 ; 0x20ba <disk_initialize+0x15e> |
| } else { |
| if (send_cmd(CMD1, 0) == 0) break; /* CMD1 */ |
| 20b0: 40 e0 ldi r20, 0x00 ; 0 |
| 20b2: 50 e0 ldi r21, 0x00 ; 0 |
| 20b4: 60 e0 ldi r22, 0x00 ; 0 |
| 20b6: 70 e0 ldi r23, 0x00 ; 0 |
| 20b8: 81 e4 ldi r24, 0x41 ; 65 |
| 20ba: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 20be: 88 23 and r24, r24 |
| 20c0: 21 f0 breq .+8 ; 0x20ca <disk_initialize+0x16e> |
| } |
| } while (Timer1); |
| 20c2: 80 91 0f 01 lds r24, 0x010F |
| 20c6: 88 23 and r24, r24 |
| 20c8: 11 f7 brne .-60 ; 0x208e <disk_initialize+0x132> |
| if (!Timer1 || send_cmd(CMD16, 512) != 0) /* Select R/W block length */ |
| 20ca: 80 91 0f 01 lds r24, 0x010F |
| 20ce: 88 23 and r24, r24 |
| 20d0: 41 f0 breq .+16 ; 0x20e2 <disk_initialize+0x186> |
| 20d2: 40 e0 ldi r20, 0x00 ; 0 |
| 20d4: 52 e0 ldi r21, 0x02 ; 2 |
| 20d6: 60 e0 ldi r22, 0x00 ; 0 |
| 20d8: 70 e0 ldi r23, 0x00 ; 0 |
| 20da: 80 e5 ldi r24, 0x50 ; 80 |
| 20dc: 0e 94 65 0d call 0x1aca ; 0x1aca <send_cmd> |
| 20e0: 81 11 cpse r24, r1 |
| 20e2: 10 e0 ldi r17, 0x00 ; 0 |
| ty = 0; |
| } |
| } |
| CardType = ty; |
| 20e4: 10 93 11 01 sts 0x0111, r17 |
| DESELECT(); /* CS = H */ |
| 20e8: 2a 9a sbi 0x05, 2 ; 5 |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| 20ea: 8f ef ldi r24, 0xFF ; 255 |
| 20ec: 8e bd out 0x2e, r24 ; 46 |
| loop_until_bit_is_set(SPSR, SPIF); |
| 20ee: 0d b4 in r0, 0x2d ; 45 |
| 20f0: 07 fe sbrs r0, 7 |
| 20f2: fd cf rjmp .-6 ; 0x20ee <disk_initialize+0x192> |
| return SPDR; |
| 20f4: 8e b5 in r24, 0x2e ; 46 |
| } |
| CardType = ty; |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| if (ty) { /* Initialization succeded */ |
| 20f6: 11 23 and r17, r17 |
| 20f8: 21 f0 breq .+8 ; 0x2102 <disk_initialize+0x1a6> |
| Stat &= ~STA_NOINIT; /* Clear STA_NOINIT */ |
| 20fa: 80 91 04 01 lds r24, 0x0104 |
| 20fe: 8e 7f andi r24, 0xFE ; 254 |
| 2100: 03 c0 rjmp .+6 ; 0x2108 <disk_initialize+0x1ac> |
| } else { /* Initialization failed */ |
| Stat |= STA_NOINIT; /* Set STA_NOINIT */ |
| 2102: 80 91 04 01 lds r24, 0x0104 |
| 2106: 81 60 ori r24, 0x01 ; 1 |
| 2108: 80 93 04 01 sts 0x0104, r24 |
| } |
| return Stat; |
| 210c: 80 91 04 01 lds r24, 0x0104 |
| 2110: 99 27 eor r25, r25 |
| 2112: e6 e0 ldi r30, 0x06 ; 6 |
| 2114: 24 96 adiw r28, 0x04 ; 4 |
| 2116: 0c 94 52 11 jmp 0x22a4 ; 0x22a4 <__epilogue_restores__+0x18> |
| 0000211a <strcpy_P>: |
| 211a: fb 01 movw r30, r22 |
| 211c: dc 01 movw r26, r24 |
| 211e: 05 90 lpm r0, Z+ |
| 2120: 0d 92 st X+, r0 |
| 2122: 00 20 and r0, r0 |
| 2124: e1 f7 brne .-8 ; 0x211e <strcpy_P+0x4> |
| 2126: 08 95 ret |
| 00002128 <memcmp>: |
| 2128: fb 01 movw r30, r22 |
| 212a: dc 01 movw r26, r24 |
| 212c: 04 c0 rjmp .+8 ; 0x2136 <memcmp+0xe> |
| 212e: 8d 91 ld r24, X+ |
| 2130: 01 90 ld r0, Z+ |
| 2132: 80 19 sub r24, r0 |
| 2134: 21 f4 brne .+8 ; 0x213e <memcmp+0x16> |
| 2136: 41 50 subi r20, 0x01 ; 1 |
| 2138: 50 40 sbci r21, 0x00 ; 0 |
| 213a: c8 f7 brcc .-14 ; 0x212e <memcmp+0x6> |
| 213c: 88 1b sub r24, r24 |
| 213e: 99 0b sbc r25, r25 |
| 2140: 08 95 ret |
| 00002142 <memcpy>: |
| 2142: fb 01 movw r30, r22 |
| 2144: dc 01 movw r26, r24 |
| 2146: 02 c0 rjmp .+4 ; 0x214c <memcpy+0xa> |
| 2148: 01 90 ld r0, Z+ |
| 214a: 0d 92 st X+, r0 |
| 214c: 41 50 subi r20, 0x01 ; 1 |
| 214e: 50 40 sbci r21, 0x00 ; 0 |
| 2150: d8 f7 brcc .-10 ; 0x2148 <memcpy+0x6> |
| 2152: 08 95 ret |
| 00002154 <memset>: |
| 2154: dc 01 movw r26, r24 |
| 2156: 01 c0 rjmp .+2 ; 0x215a <memset+0x6> |
| 2158: 6d 93 st X+, r22 |
| 215a: 41 50 subi r20, 0x01 ; 1 |
| 215c: 50 40 sbci r21, 0x00 ; 0 |
| 215e: e0 f7 brcc .-8 ; 0x2158 <memset+0x4> |
| 2160: 08 95 ret |
| 00002162 <strcpy>: |
| 2162: fb 01 movw r30, r22 |
| 2164: dc 01 movw r26, r24 |
| 2166: 01 90 ld r0, Z+ |
| 2168: 0d 92 st X+, r0 |
| 216a: 00 20 and r0, r0 |
| 216c: e1 f7 brne .-8 ; 0x2166 <strcpy+0x4> |
| 216e: 08 95 ret |
| 00002170 <itoa>: |
| 2170: fb 01 movw r30, r22 |
| 2172: 9f 01 movw r18, r30 |
| 2174: e8 94 clt |
| 2176: 42 30 cpi r20, 0x02 ; 2 |
| 2178: c4 f0 brlt .+48 ; 0x21aa <itoa+0x3a> |
| 217a: 45 32 cpi r20, 0x25 ; 37 |
| 217c: b4 f4 brge .+44 ; 0x21aa <itoa+0x3a> |
| 217e: 4a 30 cpi r20, 0x0A ; 10 |
| 2180: 29 f4 brne .+10 ; 0x218c <itoa+0x1c> |
| 2182: 97 fb bst r25, 7 |
| 2184: 1e f4 brtc .+6 ; 0x218c <itoa+0x1c> |
| 2186: 90 95 com r25 |
| 2188: 81 95 neg r24 |
| 218a: 9f 4f sbci r25, 0xFF ; 255 |
| 218c: 64 2f mov r22, r20 |
| 218e: 77 27 eor r23, r23 |
| 2190: 0e 94 61 11 call 0x22c2 ; 0x22c2 <__udivmodhi4> |
| 2194: 80 5d subi r24, 0xD0 ; 208 |
| 2196: 8a 33 cpi r24, 0x3A ; 58 |
| 2198: 0c f0 brlt .+2 ; 0x219c <itoa+0x2c> |
| 219a: 89 5d subi r24, 0xD9 ; 217 |
| 219c: 81 93 st Z+, r24 |
| 219e: cb 01 movw r24, r22 |
| 21a0: 00 97 sbiw r24, 0x00 ; 0 |
| 21a2: a1 f7 brne .-24 ; 0x218c <itoa+0x1c> |
| 21a4: 16 f4 brtc .+4 ; 0x21aa <itoa+0x3a> |
| 21a6: 5d e2 ldi r21, 0x2D ; 45 |
| 21a8: 51 93 st Z+, r21 |
| 21aa: 10 82 st Z, r1 |
| 21ac: c9 01 movw r24, r18 |
| 21ae: 0c 94 d9 10 jmp 0x21b2 ; 0x21b2 <strrev> |
| 000021b2 <strrev>: |
| 21b2: dc 01 movw r26, r24 |
| 21b4: fc 01 movw r30, r24 |
| 21b6: 67 2f mov r22, r23 |
| 21b8: 71 91 ld r23, Z+ |
| 21ba: 77 23 and r23, r23 |
| 21bc: e1 f7 brne .-8 ; 0x21b6 <strrev+0x4> |
| 21be: 32 97 sbiw r30, 0x02 ; 2 |
| 21c0: 04 c0 rjmp .+8 ; 0x21ca <strrev+0x18> |
| 21c2: 7c 91 ld r23, X |
| 21c4: 6d 93 st X+, r22 |
| 21c6: 70 83 st Z, r23 |
| 21c8: 62 91 ld r22, -Z |
| 21ca: ae 17 cp r26, r30 |
| 21cc: bf 07 cpc r27, r31 |
| 21ce: c8 f3 brcs .-14 ; 0x21c2 <strrev+0x10> |
| 21d0: 08 95 ret |
| 000021d2 <__mulsi3>: |
| 21d2: 62 9f mul r22, r18 |
| 21d4: d0 01 movw r26, r0 |
| 21d6: 73 9f mul r23, r19 |
| 21d8: f0 01 movw r30, r0 |
| 21da: 82 9f mul r24, r18 |
| 21dc: e0 0d add r30, r0 |
| 21de: f1 1d adc r31, r1 |
| 21e0: 64 9f mul r22, r20 |
| 21e2: e0 0d add r30, r0 |
| 21e4: f1 1d adc r31, r1 |
| 21e6: 92 9f mul r25, r18 |
| 21e8: f0 0d add r31, r0 |
| 21ea: 83 9f mul r24, r19 |
| 21ec: f0 0d add r31, r0 |
| 21ee: 74 9f mul r23, r20 |
| 21f0: f0 0d add r31, r0 |
| 21f2: 65 9f mul r22, r21 |
| 21f4: f0 0d add r31, r0 |
| 21f6: 99 27 eor r25, r25 |
| 21f8: 72 9f mul r23, r18 |
| 21fa: b0 0d add r27, r0 |
| 21fc: e1 1d adc r30, r1 |
| 21fe: f9 1f adc r31, r25 |
| 2200: 63 9f mul r22, r19 |
| 2202: b0 0d add r27, r0 |
| 2204: e1 1d adc r30, r1 |
| 2206: f9 1f adc r31, r25 |
| 2208: bd 01 movw r22, r26 |
| 220a: cf 01 movw r24, r30 |
| 220c: 11 24 eor r1, r1 |
| 220e: 08 95 ret |
| 00002210 <__udivmodsi4>: |
| 2210: a1 e2 ldi r26, 0x21 ; 33 |
| 2212: 1a 2e mov r1, r26 |
| 2214: aa 1b sub r26, r26 |
| 2216: bb 1b sub r27, r27 |
| 2218: fd 01 movw r30, r26 |
| 221a: 0d c0 rjmp .+26 ; 0x2236 <__udivmodsi4_ep> |
| 0000221c <__udivmodsi4_loop>: |
| 221c: aa 1f adc r26, r26 |
| 221e: bb 1f adc r27, r27 |
| 2220: ee 1f adc r30, r30 |
| 2222: ff 1f adc r31, r31 |
| 2224: a2 17 cp r26, r18 |
| 2226: b3 07 cpc r27, r19 |
| 2228: e4 07 cpc r30, r20 |
| 222a: f5 07 cpc r31, r21 |
| 222c: 20 f0 brcs .+8 ; 0x2236 <__udivmodsi4_ep> |
| 222e: a2 1b sub r26, r18 |
| 2230: b3 0b sbc r27, r19 |
| 2232: e4 0b sbc r30, r20 |
| 2234: f5 0b sbc r31, r21 |
| 00002236 <__udivmodsi4_ep>: |
| 2236: 66 1f adc r22, r22 |
| 2238: 77 1f adc r23, r23 |
| 223a: 88 1f adc r24, r24 |
| 223c: 99 1f adc r25, r25 |
| 223e: 1a 94 dec r1 |
| 2240: 69 f7 brne .-38 ; 0x221c <__udivmodsi4_loop> |
| 2242: 60 95 com r22 |
| 2244: 70 95 com r23 |
| 2246: 80 95 com r24 |
| 2248: 90 95 com r25 |
| 224a: 9b 01 movw r18, r22 |
| 224c: ac 01 movw r20, r24 |
| 224e: bd 01 movw r22, r26 |
| 2250: cf 01 movw r24, r30 |
| 2252: 08 95 ret |
| 00002254 <__prologue_saves__>: |
| 2254: 2f 92 push r2 |
| 2256: 3f 92 push r3 |
| 2258: 4f 92 push r4 |
| 225a: 5f 92 push r5 |
| 225c: 6f 92 push r6 |
| 225e: 7f 92 push r7 |
| 2260: 8f 92 push r8 |
| 2262: 9f 92 push r9 |
| 2264: af 92 push r10 |
| 2266: bf 92 push r11 |
| 2268: cf 92 push r12 |
| 226a: df 92 push r13 |
| 226c: ef 92 push r14 |
| 226e: ff 92 push r15 |
| 2270: 0f 93 push r16 |
| 2272: 1f 93 push r17 |
| 2274: cf 93 push r28 |
| 2276: df 93 push r29 |
| 2278: cd b7 in r28, 0x3d ; 61 |
| 227a: de b7 in r29, 0x3e ; 62 |
| 227c: ca 1b sub r28, r26 |
| 227e: db 0b sbc r29, r27 |
| 2280: 0f b6 in r0, 0x3f ; 63 |
| 2282: f8 94 cli |
| 2284: de bf out 0x3e, r29 ; 62 |
| 2286: 0f be out 0x3f, r0 ; 63 |
| 2288: cd bf out 0x3d, r28 ; 61 |
| 228a: 09 94 ijmp |
| 0000228c <__epilogue_restores__>: |
| 228c: 2a 88 ldd r2, Y+18 ; 0x12 |
| 228e: 39 88 ldd r3, Y+17 ; 0x11 |
| 2290: 48 88 ldd r4, Y+16 ; 0x10 |
| 2292: 5f 84 ldd r5, Y+15 ; 0x0f |
| 2294: 6e 84 ldd r6, Y+14 ; 0x0e |
| 2296: 7d 84 ldd r7, Y+13 ; 0x0d |
| 2298: 8c 84 ldd r8, Y+12 ; 0x0c |
| 229a: 9b 84 ldd r9, Y+11 ; 0x0b |
| 229c: aa 84 ldd r10, Y+10 ; 0x0a |
| 229e: b9 84 ldd r11, Y+9 ; 0x09 |
| 22a0: c8 84 ldd r12, Y+8 ; 0x08 |
| 22a2: df 80 ldd r13, Y+7 ; 0x07 |
| 22a4: ee 80 ldd r14, Y+6 ; 0x06 |
| 22a6: fd 80 ldd r15, Y+5 ; 0x05 |
| 22a8: 0c 81 ldd r16, Y+4 ; 0x04 |
| 22aa: 1b 81 ldd r17, Y+3 ; 0x03 |
| 22ac: aa 81 ldd r26, Y+2 ; 0x02 |
| 22ae: b9 81 ldd r27, Y+1 ; 0x01 |
| 22b0: ce 0f add r28, r30 |
| 22b2: d1 1d adc r29, r1 |
| 22b4: 0f b6 in r0, 0x3f ; 63 |
| 22b6: f8 94 cli |
| 22b8: de bf out 0x3e, r29 ; 62 |
| 22ba: 0f be out 0x3f, r0 ; 63 |
| 22bc: cd bf out 0x3d, r28 ; 61 |
| 22be: ed 01 movw r28, r26 |
| 22c0: 08 95 ret |
| 000022c2 <__udivmodhi4>: |
| 22c2: aa 1b sub r26, r26 |
| 22c4: bb 1b sub r27, r27 |
| 22c6: 51 e1 ldi r21, 0x11 ; 17 |
| 22c8: 07 c0 rjmp .+14 ; 0x22d8 <__udivmodhi4_ep> |
| 000022ca <__udivmodhi4_loop>: |
| 22ca: aa 1f adc r26, r26 |
| 22cc: bb 1f adc r27, r27 |
| 22ce: a6 17 cp r26, r22 |
| 22d0: b7 07 cpc r27, r23 |
| 22d2: 10 f0 brcs .+4 ; 0x22d8 <__udivmodhi4_ep> |
| 22d4: a6 1b sub r26, r22 |
| 22d6: b7 0b sbc r27, r23 |
| 000022d8 <__udivmodhi4_ep>: |
| 22d8: 88 1f adc r24, r24 |
| 22da: 99 1f adc r25, r25 |
| 22dc: 5a 95 dec r21 |
| 22de: a9 f7 brne .-22 ; 0x22ca <__udivmodhi4_loop> |
| 22e0: 80 95 com r24 |
| 22e2: 90 95 com r25 |
| 22e4: bc 01 movw r22, r24 |
| 22e6: cd 01 movw r24, r26 |
| 22e8: 08 95 ret |
| 000022ea <_exit>: |
| 22ea: ff cf rjmp .-2 ; 0x22ea <_exit> |
| /Designs/GPSRL03A/glg.map |
|---|
| 0,0 → 1,532 |
| Archive member included because of file (symbol) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_mulsi3.o) |
| tff.o (__mulsi3) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodsi4.o) |
| tff.o (__udivmodsi4) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_prologue.o) |
| tff.o (__prologue_saves__) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_epilogue.o) |
| tff.o (__epilogue_restores__) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_exit.o) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/crtm168.o (exit) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_copy_data.o) |
| main.o (__do_copy_data) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_clear_bss.o) |
| main.o (__do_clear_bss) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy_P.o) |
| main.o (strcpy_P) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcmp.o) |
| tff.o (memcmp) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcpy.o) |
| tff.o (memcpy) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memset.o) |
| tff.o (memset) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy.o) |
| main.o (strcpy) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(itoa.o) |
| main.o (itoa) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strrev.o) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(itoa.o) (strrev) |
| /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodhi4.o) |
| /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(itoa.o) (__udivmodhi4) |
| Allocating common symbols |
| Common symbol size file |
| Value1 0x4 main.o |
| Timer 0x1 main.o |
| Buff 0x52 main.o |
| Stat 0x1 main.o |
| Value2 0x4 main.o |
| battery 0x2 main.o |
| rxfifo 0x99 main.o |
| intensity 0x2 main.o |
| file1 0x1c main.o |
| fatfs 0x220 main.o |
| Memory Configuration |
| Name Origin Length Attributes |
| text 0x00000000 0x00020000 xr |
| data 0x00800060 0x0000ffa0 rw !x |
| eeprom 0x00810000 0x00010000 rw !x |
| fuse 0x00820000 0x00000400 rw !x |
| lock 0x00830000 0x00000400 rw !x |
| signature 0x00840000 0x00000400 rw !x |
| *default* 0x00000000 0xffffffff |
| Linker script and memory map |
| Address of section .data set to 0x800100 |
| LOAD /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/crtm168.o |
| LOAD main.o |
| LOAD tff.o |
| LOAD mmc.o |
| LOAD /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a |
| LOAD /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a |
| LOAD /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a |
| .hash |
| *(.hash) |
| .dynsym |
| *(.dynsym) |
| .dynstr |
| *(.dynstr) |
| .gnu.version |
| *(.gnu.version) |
| .gnu.version_d |
| *(.gnu.version_d) |
| .gnu.version_r |
| *(.gnu.version_r) |
| .rel.init |
| *(.rel.init) |
| .rela.init |
| *(.rela.init) |
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| *(.rel.text) |
| *(.rel.text.*) |
| *(.rel.gnu.linkonce.t*) |
| .rela.text |
| *(.rela.text) |
| *(.rela.text.*) |
| *(.rela.gnu.linkonce.t*) |
| .rel.fini |
| *(.rel.fini) |
| .rela.fini |
| *(.rela.fini) |
| .rel.rodata |
| *(.rel.rodata) |
| *(.rel.rodata.*) |
| *(.rel.gnu.linkonce.r*) |
| .rela.rodata |
| *(.rela.rodata) |
| *(.rela.rodata.*) |
| *(.rela.gnu.linkonce.r*) |
| .rel.data |
| *(.rel.data) |
| *(.rel.data.*) |
| *(.rel.gnu.linkonce.d*) |
| .rela.data |
| *(.rela.data) |
| *(.rela.data.*) |
| *(.rela.gnu.linkonce.d*) |
| .rel.ctors |
| *(.rel.ctors) |
| .rela.ctors |
| *(.rela.ctors) |
| .rel.dtors |
| *(.rel.dtors) |
| .rela.dtors |
| *(.rela.dtors) |
| .rel.got |
| *(.rel.got) |
| .rela.got |
| *(.rela.got) |
| .rel.bss |
| *(.rel.bss) |
| .rela.bss |
| *(.rela.bss) |
| .rel.plt |
| *(.rel.plt) |
| .rela.plt |
| *(.rela.plt) |
| .text 0x00000000 0x22ec |
| *(.vectors) |
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| 0x00000000 __vectors |
| 0x00000000 __vector_default |
| *(.vectors) |
| *(.progmem.gcc*) |
| *(.progmem*) |
| .progmem.data 0x00000068 0x30 main.o |
| 0x00000098 . = ALIGN (0x2) |
| 0x00000098 __trampolines_start = . |
| *(.trampolines) |
| .trampolines 0x00000098 0x0 linker stubs |
| *(.trampolines*) |
| 0x00000098 __trampolines_end = . |
| *(.jumptables) |
| *(.jumptables*) |
| *(.lowtext) |
| *(.lowtext*) |
| 0x00000098 __ctors_start = . |
| *(.ctors) |
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| 0x00000098 __dtors_start = . |
| *(.dtors) |
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| SORT(*)(.ctors) |
| SORT(*)(.dtors) |
| *(.init0) |
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| 0x00000098 __init |
| *(.init0) |
| *(.init1) |
| *(.init1) |
| *(.init2) |
| .init2 0x00000098 0xc /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/crtm168.o |
| *(.init2) |
| *(.init3) |
| *(.init3) |
| *(.init4) |
| .init4 0x000000a4 0x16 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_copy_data.o) |
| 0x000000a4 __do_copy_data |
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| *(.init4) |
| *(.init5) |
| *(.init5) |
| *(.init6) |
| *(.init6) |
| *(.init7) |
| *(.init7) |
| *(.init8) |
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| *(.init9) |
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| *(.init9) |
| *(.text) |
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| 0x000000d2 __vector_22 |
| 0x000000d2 __vector_1 |
| 0x000000d2 __vector_24 |
| 0x000000d2 __vector_12 |
| 0x000000d2 __bad_interrupt |
| 0x000000d2 __vector_6 |
| 0x000000d2 __vector_3 |
| 0x000000d2 __vector_23 |
| 0x000000d2 __vector_25 |
| 0x000000d2 __vector_13 |
| 0x000000d2 __vector_17 |
| 0x000000d2 __vector_19 |
| 0x000000d2 __vector_7 |
| 0x000000d2 __vector_5 |
| 0x000000d2 __vector_4 |
| 0x000000d2 __vector_9 |
| 0x000000d2 __vector_2 |
| 0x000000d2 __vector_15 |
| 0x000000d2 __vector_8 |
| 0x000000d2 __vector_14 |
| 0x000000d2 __vector_10 |
| 0x000000d2 __vector_16 |
| 0x000000d2 __vector_20 |
| .text 0x000000d6 0x55a main.o |
| 0x000002f4 __vector_11 |
| 0x00000176 get_fattime |
| 0x00000374 main |
| 0x000000d6 __vector_21 |
| 0x000001ac __vector_18 |
| .text 0x00000630 0x1376 tff.o |
| 0x00000d68 f_close |
| 0x00000ff0 f_read |
| 0x00000cba f_sync |
| 0x000011de f_mount |
| 0x00000b16 f_lseek |
| 0x00000d80 f_write |
| 0x00001288 f_open |
| .text 0x000019a6 0x774 mmc.o |
| 0x00001f5c disk_initialize |
| 0x00001b7e disk_status |
| 0x00001bd0 disk_ioctl |
| 0x00001b90 disk_timerproc |
| 0x00001da6 disk_write |
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| .text 0x0000211a 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_mulsi3.o) |
| .text 0x0000211a 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodsi4.o) |
| .text 0x0000211a 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_prologue.o) |
| .text 0x0000211a 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_epilogue.o) |
| .text 0x0000211a 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_exit.o) |
| .text 0x0000211a 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_copy_data.o) |
| .text 0x0000211a 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_clear_bss.o) |
| .text 0x0000211a 0xe /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy_P.o) |
| 0x0000211a strcpy_P |
| .text 0x00002128 0x1a /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcmp.o) |
| 0x00002128 memcmp |
| .text 0x00002142 0x12 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcpy.o) |
| 0x00002142 memcpy |
| .text 0x00002154 0xe /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memset.o) |
| 0x00002154 memset |
| .text 0x00002162 0xe /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy.o) |
| 0x00002162 strcpy |
| .text 0x00002170 0x42 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(itoa.o) |
| 0x00002170 itoa |
| .text 0x000021b2 0x20 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strrev.o) |
| 0x000021b2 strrev |
| .text 0x000021d2 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodhi4.o) |
| 0x000021d2 . = ALIGN (0x2) |
| *(.text.*) |
| .text.libgcc 0x000021d2 0x3e /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_mulsi3.o) |
| 0x000021d2 __mulsi3 |
| .text.libgcc 0x00002210 0x44 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodsi4.o) |
| 0x00002210 __udivmodsi4 |
| .text.libgcc 0x00002254 0x38 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_prologue.o) |
| 0x00002254 __prologue_saves__ |
| .text.libgcc 0x0000228c 0x36 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_epilogue.o) |
| 0x0000228c __epilogue_restores__ |
| .text.libgcc 0x000022c2 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_exit.o) |
| .text.libgcc 0x000022c2 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_copy_data.o) |
| .text.libgcc 0x000022c2 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_clear_bss.o) |
| .text.libgcc 0x000022c2 0x28 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodhi4.o) |
| 0x000022c2 __udivmodhi4 |
| 0x000022ea . = ALIGN (0x2) |
| *(.fini9) |
| .fini9 0x000022ea 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_exit.o) |
| 0x000022ea exit |
| 0x000022ea _exit |
| *(.fini9) |
| *(.fini8) |
| *(.fini8) |
| *(.fini7) |
| *(.fini7) |
| *(.fini6) |
| *(.fini6) |
| *(.fini5) |
| *(.fini5) |
| *(.fini4) |
| *(.fini4) |
| *(.fini3) |
| *(.fini3) |
| *(.fini2) |
| *(.fini2) |
| *(.fini1) |
| *(.fini1) |
| *(.fini0) |
| .fini0 0x000022ea 0x2 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_exit.o) |
| *(.fini0) |
| 0x000022ec _etext = . |
| .data 0x00800100 0x6 load address 0x000022ec |
| 0x00800100 PROVIDE (__data_start, .) |
| *(.data) |
| .data 0x00800100 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/crtm168.o |
| .data 0x00800100 0x0 main.o |
| .data 0x00800100 0x4 tff.o |
| .data 0x00800104 0x1 mmc.o |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_mulsi3.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodsi4.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_prologue.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_epilogue.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_exit.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_copy_data.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_clear_bss.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy_P.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcmp.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcpy.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memset.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(itoa.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strrev.o) |
| .data 0x00800105 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodhi4.o) |
| *(.data*) |
| *(.rodata) |
| *(.rodata*) |
| *(.gnu.linkonce.d*) |
| 0x00800106 . = ALIGN (0x2) |
| *fill* 0x00800105 0x1 00 |
| 0x00800106 _edata = . |
| 0x00800106 PROVIDE (__data_end, .) |
| .bss 0x00800106 0x341 load address 0x000022f2 |
| 0x00800106 PROVIDE (__bss_start, .) |
| *(.bss) |
| .bss 0x00800106 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/crtm168.o |
| .bss 0x00800106 0x4 main.o |
| .bss 0x0080010a 0x4 tff.o |
| .bss 0x0080010e 0x4 mmc.o |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_mulsi3.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodsi4.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_prologue.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_epilogue.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_exit.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_copy_data.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_clear_bss.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy_P.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcmp.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcpy.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memset.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(itoa.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strrev.o) |
| .bss 0x00800112 0x0 /usr/lib/gcc/avr/4.2.2/avr5/libgcc.a(_udivmodhi4.o) |
| *(.bss*) |
| *(COMMON) |
| COMMON 0x00800112 0x335 main.o |
| 0x00800112 Value1 |
| 0x00800116 Timer |
| 0x00800117 Buff |
| 0x00800169 Stat |
| 0x0080016a Value2 |
| 0x0080016e battery |
| 0x00800170 rxfifo |
| 0x00800209 intensity |
| 0x0080020b file1 |
| 0x00800227 fatfs |
| 0x00800447 PROVIDE (__bss_end, .) |
| 0x000022ec __data_load_start = LOADADDR (.data) |
| 0x000022f2 __data_load_end = (__data_load_start + SIZEOF (.data)) |
| .noinit 0x00800447 0x0 |
| 0x00800447 PROVIDE (__noinit_start, .) |
| *(.noinit*) |
| 0x00800447 PROVIDE (__noinit_end, .) |
| 0x00800447 _end = . |
| 0x00800447 PROVIDE (__heap_start, .) |
| .eeprom 0x00810000 0x0 |
| *(.eeprom*) |
| 0x00810000 __eeprom_end = . |
| .fuse |
| *(.fuse) |
| *(.lfuse) |
| *(.hfuse) |
| *(.efuse) |
| .lock |
| *(.lock*) |
| .signature |
| *(.signature*) |
| .stab 0x00000000 0x87c |
| *(.stab) |
| .stab 0x00000000 0x378 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/crtm168.o |
| .stab 0x00000378 0x6c /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy_P.o) |
| 0x78 (size before relaxing) |
| .stab 0x000003e4 0xb4 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcmp.o) |
| 0xc0 (size before relaxing) |
| .stab 0x00000498 0x84 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memcpy.o) |
| 0x90 (size before relaxing) |
| .stab 0x0000051c 0x6c /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(memset.o) |
| 0x78 (size before relaxing) |
| .stab 0x00000588 0x6c /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strcpy.o) |
| 0x78 (size before relaxing) |
| .stab 0x000005f4 0x1b0 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(itoa.o) |
| 0x1bc (size before relaxing) |
| .stab 0x000007a4 0xd8 /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/libc.a(strrev.o) |
| 0xe4 (size before relaxing) |
| .stabstr 0x00000000 0x19e |
| *(.stabstr) |
| .stabstr 0x00000000 0x19e /usr/lib/gcc/avr/4.2.2/../../../../avr/lib/avr5/crtm168.o |
| .stab.excl |
| *(.stab.excl) |
| .stab.exclstr |
| *(.stab.exclstr) |
| .stab.index |
| *(.stab.index) |
| .stab.indexstr |
| *(.stab.indexstr) |
| .comment |
| *(.comment) |
| .debug |
| *(.debug) |
| .line |
| *(.line) |
| .debug_srcinfo |
| *(.debug_srcinfo) |
| .debug_sfnames |
| *(.debug_sfnames) |
| .debug_aranges 0x00000000 0x60 |
| *(.debug_aranges) |
| .debug_aranges |
| 0x00000000 0x20 main.o |
| .debug_aranges |
| 0x00000020 0x20 tff.o |
| .debug_aranges |
| 0x00000040 0x20 mmc.o |
| .debug_pubnames |
| 0x00000000 0x19e |
| *(.debug_pubnames) |
| .debug_pubnames |
| 0x00000000 0xc6 main.o |
| .debug_pubnames |
| 0x000000c6 0x63 tff.o |
| .debug_pubnames |
| 0x00000129 0x75 mmc.o |
| .debug_info 0x00000000 0x1cfd |
| *(.debug_info) |
| .debug_info 0x00000000 0x8c0 main.o |
| .debug_info 0x000008c0 0xea2 tff.o |
| .debug_info 0x00001762 0x59b mmc.o |
| *(.gnu.linkonce.wi.*) |
| .debug_abbrev 0x00000000 0x7a6 |
| *(.debug_abbrev) |
| .debug_abbrev 0x00000000 0x2fb main.o |
| .debug_abbrev 0x000002fb 0x2ca tff.o |
| .debug_abbrev 0x000005c5 0x1e1 mmc.o |
| .debug_line 0x00000000 0x19a4 |
| *(.debug_line) |
| .debug_line 0x00000000 0x5df main.o |
| .debug_line 0x000005df 0xd36 tff.o |
| .debug_line 0x00001315 0x68f mmc.o |
| .debug_frame 0x00000000 0x260 |
| *(.debug_frame) |
| .debug_frame 0x00000000 0xb0 main.o |
| .debug_frame 0x000000b0 0x100 tff.o |
| .debug_frame 0x000001b0 0xb0 mmc.o |
| .debug_str 0x00000000 0x5e8 |
| *(.debug_str) |
| .debug_str 0x00000000 0x289 main.o |
| 0x2e4 (size before relaxing) |
| .debug_str 0x00000289 0x29f tff.o |
| 0x431 (size before relaxing) |
| .debug_str 0x00000528 0xc0 mmc.o |
| 0x1e4 (size before relaxing) |
| .debug_loc 0x00000000 0x20ca |
| *(.debug_loc) |
| .debug_loc 0x00000000 0x2d9 main.o |
| .debug_loc 0x000002d9 0x190c tff.o |
| .debug_loc 0x00001be5 0x4e5 mmc.o |
| .debug_macinfo |
| *(.debug_macinfo) |
| OUTPUT(glg.elf elf32-avr) |
| LOAD linker stubs |
| .debug_ranges 0x00000000 0x178 |
| .debug_ranges 0x00000000 0x178 tff.o |
| /Designs/GPSRL03A/glg_sch.png |
|---|
| Cannot display: file marked as a binary type. |
| svn:mime-type = application/octet-stream |
| Property changes: |
| Added: svn:mime-type |
| +application/octet-stream |
| \ No newline at end of property |
| /Designs/GPSRL03A/integer.h |
|---|
| 0,0 → 1,23 |
| #ifndef _INTEGER |
| typedef int INT; |
| typedef unsigned int UINT; |
| typedef char CHAR; |
| typedef unsigned char UCHAR; |
| typedef unsigned char BYTE; |
| typedef short SHORT; |
| typedef unsigned short USHORT; |
| typedef unsigned short WORD; |
| typedef long LONG; |
| typedef unsigned long ULONG; |
| typedef unsigned long DWORD; |
| typedef unsigned char BOOL; |
| #define FALSE 0 |
| #define TRUE 1 |
| #define _INTEGER |
| #endif |
| /Designs/GPSRL03A/main.c |
|---|
| 0,0 → 1,429 |
| /*---------------------------------------------------------------*/ |
| /* GPS data logger R0.02 (C)ChaN, 2008 */ |
| /*---------------------------------------------------------------*/ |
| #include <avr/io.h> |
| #include <avr/pgmspace.h> |
| #include <avr/interrupt.h> |
| #include <string.h> |
| #include "tff.h" |
| #include "diskio.h" |
| #define SYSCLK 10000000UL |
| #define BEEP_ON() TCCR0B=0b011 |
| #define BEEP_OFF() TCCR0B=0b000 |
| #define GPS_ON() PORTB|=0x02 |
| #define GPS_OFF() PORTB&=0xFD |
| #define DELAY(dly) for(Timer=dly;Timer;) |
| #define VTH_LOW (WORD)(8000UL*100/3838) |
| #define VTH_HIGH (WORD)(11500UL*100/3838) |
| #define POWER_check 0b01000000 | 1 |
| #define ANALOG_IN1 0b01000000 | 2 |
| FATFS fatfs; /* File system object for each logical drive */ |
| FIL file1; /* File object */ |
| BYTE Buff[82]; /* File/Console buffer */ |
| BYTE Value1[4]; // logged values |
| BYTE Value2[4]; |
| uint16_t battery; // battery voltage |
| uint16_t intensity; // radiation intensity |
| volatile BYTE Timer; /* 100Hz decrement timer */ |
| volatile BYTE Stat; /* Status */ |
| typedef struct _fifo { |
| uint8_t idx_w; |
| uint8_t idx_r; |
| uint8_t count; |
| uint8_t buff[150]; |
| } FIFO; |
| volatile FIFO rxfifo; |
| /*---------------------------------------------------------*/ |
| /* ADC interrupt */ |
| /*---------------------------------------------------------*/ |
| ISR(ADC_vect) |
| { |
| WORD n; |
| static BYTE l, h; |
| n = ADC; |
| if(ADMUX == POWER_check) |
| { |
| if (n < VTH_LOW) { |
| if (l >= 15) { |
| Stat |= 0x01; |
| } |
| else {l++;} |
| } |
| else {l = 0;} |
| if (n > VTH_HIGH) { |
| if (h >= 15) { |
| Stat &= 0xFE; |
| } |
| else {h++;} |
| } |
| else {h = 0;} |
| battery = n; |
| ADMUX = ANALOG_IN1; |
| } |
| if(ADMUX == ANALOG_IN1) |
| { |
| intensity = n; |
| ADMUX = POWER_check; |
| } |
| //!!!! |
| //Stat &= 0xFE; |
| ADCSRA = _BV(ADEN)|_BV(ADSC)|_BV(ADIF)|_BV(ADIE)|0b111; |
| } |
| /*---------------------------------------------------------*/ |
| /* 100Hz timer interrupt generated by OC1A */ |
| /*---------------------------------------------------------*/ |
| ISR(TIMER1_COMPA_vect) |
| { |
| BYTE n; |
| static WORD ivt_sync; |
| n = Timer; |
| if (n) Timer = n - 1; |
| if (++ivt_sync >= 180 * 100) { |
| ivt_sync = 0; |
| Stat |= 4; |
| } |
| disk_timerproc(); /* Drive timer procedure of low level disk I/O module */ |
| } |
| /*---------------------------------------------------------*/ |
| /* User Provided Timer Function for FatFs module */ |
| /*---------------------------------------------------------*/ |
| /* This is a real time clock service to be called from */ |
| /* FatFs module. Any valid time must be returned even if */ |
| /* the system does not support a real time clock. */ |
| DWORD get_fattime () |
| { |
| return ((2007UL - 1980) << 25) /* Fixed to 2007.5.1, 00:00:00 */ |
| | ((5UL) << 21) |
| | ((1UL) << 16) |
| | (0 << 11) |
| | (0 << 5) |
| | (0 >> 1); |
| } |
| /*--------------------------------------------------------------------------*/ |
| /* UART control */ |
| static |
| void uart_init (void) |
| { |
| cli(); |
| UCSR0B = 0; |
| rxfifo.idx_r = 0; |
| rxfifo.idx_w = 0; |
| rxfifo.count = 0; |
| UBRR0L = SYSCLK/16/9600; // Enable USRAT0 in N81,4800bps |
| UCSR0B = _BV(RXCIE0)|_BV(RXEN0)|_BV(TXEN0); |
| Stat &= 0xFD; // Clear overflow flag |
| sei(); |
| } |
| static |
| void uart_stop (void) |
| { |
| UCSR0B = 0; |
| } |
| /* Get a received character */ |
| static |
| uint8_t uart_get () |
| { |
| uint8_t d, i; |
| i = rxfifo.idx_r; |
| if (rxfifo.count == 0) return 0; |
| d = rxfifo.buff[i++]; |
| cli(); |
| rxfifo.count--; |
| sei(); |
| if(i >= sizeof(rxfifo.buff)) |
| i = 0; |
| rxfifo.idx_r = i; |
| return d; |
| } |
| /* Put a character to transmit */ |
| static |
| void uart_put (uint8_t d) |
| { |
| while (bit_is_clear(UCSR0A, UDRE0)); |
| UDR0 = d; |
| } |
| /* USART0 RXC interrupt */ |
| ISR(USART_RX_vect) |
| { |
| uint8_t d, n, i; |
| d = UDR0; |
| n = rxfifo.count; |
| if(n < sizeof(rxfifo.buff)) { |
| rxfifo.count = ++n; |
| i = rxfifo.idx_w; |
| rxfifo.buff[i++] = d; |
| if(i >= sizeof(rxfifo.buff)) |
| i = 0; |
| rxfifo.idx_w = i; |
| } else { |
| Stat |= 2; |
| } |
| } |
| /*----------------------------------------------------*/ |
| /* Get a line received from GPS module */ |
| /*----------------------------------------------------*/ |
| static |
| BYTE get_line (void) // 0: Power fail occured, >0: Number of bytes received. |
| { |
| BYTE c, i = 0; |
| for (;;) { |
| if (Stat & 1) return 0; // When power fail is detected, return with zero. |
| c = uart_get(); |
| if (Stat & 2) { // When buffer overflow has occured, restert to receive line. |
| uart_init(); |
| i = 0; c = 0; |
| } |
| if (!c || (i == 0 && c != '$')) continue; |
| Buff[i++] = c; |
| if (c == '\n') break; |
| if (i >= sizeof(Buff)) i = 0; |
| } |
| return i; |
| } |
| /*--------------------------------------------------------------------------*/ |
| /* Controls */ |
| static |
| void beep (BYTE len, BYTE cnt) |
| { |
| while (cnt--) { |
| BEEP_ON(); |
| DELAY(len); |
| BEEP_OFF(); |
| DELAY(len); |
| } |
| } |
| /* Compare sentence header string */ |
| static |
| BYTE gp_comp (BYTE *str1, const prog_uint8_t *str2) |
| { |
| BYTE c; |
| do { |
| c = pgm_read_byte(str2++); |
| } while (c && c == *str1++); |
| return c; |
| } |
| /* Initialize GPS module (depends on each product) */ |
| static |
| void gp_init (void) |
| { |
| const prog_char *s = |
| PSTR("$PSRF106,21*0F\r\n"); // Select datum of WGS84 (for EM-406A) |
| char c; |
| while ((c = pgm_read_byte(s++)) != 0) uart_put(c); |
| } |
| /* Get a column item */ |
| static |
| BYTE* gp_col ( /* Returns pointer to the item (returns a NULL when not found) */ |
| const BYTE* buf, /* Pointer to the sentence */ |
| BYTE col /* Column number (0 is the 1st item) */ |
| ) { |
| BYTE c; |
| while (col) { |
| do { |
| c = *buf++; |
| if (c <= ' ') return NULL; |
| } while (c != ','); |
| col--; |
| } |
| return (BYTE*)buf; |
| } |
| static |
| void ioinit (void) |
| { |
| PORTB = 0b00001101; // Port B |
| DDRB = 0b00101110; |
| PORTC = 0b00111111; // Port C |
| DDRC = 0b00000000; |
| PORTD = 0b10101110; // Port D |
| DDRD = 0b01010010; |
| SPCR = 0b01010000; /* Initialize SPI port (Mode 0) */ |
| SPSR = 0b00000001; |
| OCR1A = SYSCLK/8/100-1; // Timer1: 100Hz interval (OC1A) |
| TCCR1B = 0b00001010; |
| TIMSK1 = _BV(OCIE1A); // Enable TC1.oca interrupt |
| OCR0A = SYSCLK/64/4000/2-1; // Timer0: 4kHz sound (OC0A) |
| TCCR0A = 0b01000010; |
| ADMUX = POWER_check; // Select ADC input |
| ADCSRA = _BV(ADEN)|_BV(ADSC)|_BV(ADIF)|_BV(ADIE)|0b111; |
| sei(); |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Main */ |
| int main () |
| { |
| BYTE b, err, *p = NULL; |
| WORD s; |
| ioinit(); |
| f_mount(0, &fatfs); /* Enable file I/O layer */ |
| for (;;) { |
| uart_stop(); |
| GPS_OFF(); |
| Timer = 100; |
| do { |
| if (Stat & 1) Timer = 100; |
| } while (Timer); |
| GPS_ON(); |
| Timer = 255; |
| do { |
| if ((Stat & 1) || (disk_status(0) & STA_NODISK)) Timer = 255; |
| } while (Timer); |
| beep(5, 1); // Single beep. Start to get current time. |
| uart_init(); |
| gp_init(); // Initialize GPS module to let output data in NMEA-0183 format. |
| do { // Wait for valid RMC sentence. |
| b = get_line(); |
| if (!b) break; |
| if (gp_comp(Buff, PSTR("$GPRMC"))) continue; |
| p = gp_col(Buff,2); |
| } while (!p || *p != 'A'); |
| if (!b) continue; |
| p = gp_col(Buff,9); // Open log file with the name of current date (YYMMDD.log in UTC). |
| if (!p) {err = 3; break;} |
| memcpy(&Buff[0], p+4, 2); |
| memcpy(&Buff[2], p+2, 2); |
| memcpy(&Buff[4], p+0, 2); |
| strcpy_P(&Buff[6], PSTR(".log")); |
| if (f_open(&file1, Buff, FA_OPEN_ALWAYS | FA_WRITE) || f_lseek(&file1, file1.fsize)) { err = 4; break; } |
| beep(5, 2); // Two beeps. Start logging. |
| err = 0; |
| while ((b = get_line()) > 0) { |
| if ( !gp_comp(Buff, PSTR("$GPGGA")) // Which sentence is logged? |
| || !gp_comp(Buff, PSTR("$GPRMC")) |
| // || !gp_comp(Buff, PSTR("$GPGSA")) |
| // || !gp_comp(Buff, PSTR("$GPGLL")) |
| // || !gp_comp(Buff, PSTR("$GPGSV")) |
| // || !gp_comp(Buff, PSTR("$GPZDA")) |
| // || !gp_comp(Buff, PSTR("$GPVTG")) |
| ) |
| { |
| if (f_write(&file1, Buff, b, &s) || b != s) { err = 5; break; }; |
| itoa(battery,&Value1,10); |
| itoa(intensity,&Value2,10); |
| strcpy(&Buff[0], Value1); |
| strcpy_P(&Buff[4], PSTR(",")); |
| strcpy(&Buff[5], Value2); |
| strcpy_P(&Buff[9], PSTR("\r\n")); |
| if (f_write(&file1, Buff, 11, &s) || 11 != s) { err = 5; break; }; |
| } |
| if ((Stat & 4) == 0) continue; |
| if (f_sync(&file1)) { err = 6; break; };// Synchronize the file in interval of 300 sec. |
| cli(); Stat &= 0xFB; sei(); // Clear sync request |
| } |
| if (err) break; |
| // Turn-off GPS power and close the log file by power supply is discharged. |
| uart_stop(); |
| GPS_OFF(); |
| if (f_close(&file1)) { err = 7; break; }; |
| // When a long beep is sounded, the shutdoun process has been succeeded. |
| beep(50, 1); |
| } |
| // Unrecoverble error. Enter shutdown state. |
| uart_stop(); |
| GPS_OFF(); |
| beep(25, err); |
| for (;;); |
| } |
| /Designs/GPSRL03A/mmc.c |
|---|
| 0,0 → 1,487 |
| /*-----------------------------------------------------------------------*/ |
| /* MMC/SDC (in SPI mode) control module (C)ChaN, 2006 */ |
| /*-----------------------------------------------------------------------*/ |
| /* Only rcvr_spi(), xmit_spi(), disk_timerproc(), disk_initialize () and */ |
| /* some macros are platform dependent. */ |
| /*-----------------------------------------------------------------------*/ |
| #include <avr/io.h> |
| #include "diskio.h" |
| /* Definitions for MMC/SDC command */ |
| #define CMD0 (0x40+0) /* GO_IDLE_STATE */ |
| #define CMD1 (0x40+1) /* SEND_OP_COND */ |
| #define CMD8 (0x40+8) /* SEND_IF_COND */ |
| #define CMD9 (0x40+9) /* SEND_CSD */ |
| #define CMD10 (0x40+10) /* SEND_CID */ |
| #define CMD12 (0x40+12) /* STOP_TRANSMISSION */ |
| #define CMD16 (0x40+16) /* SET_BLOCKLEN */ |
| #define CMD17 (0x40+17) /* READ_SINGLE_BLOCK */ |
| #define CMD18 (0x40+18) /* READ_MULTIPLE_BLOCK */ |
| #define CMD23 (0x40+23) /* SET_BLOCK_COUNT */ |
| #define CMD24 (0x40+24) /* WRITE_BLOCK */ |
| #define CMD25 (0x40+25) /* WRITE_MULTIPLE_BLOCK */ |
| #define CMD41 (0x40+41) /* SEND_OP_COND (ACMD) */ |
| #define CMD55 (0x40+55) /* APP_CMD */ |
| #define CMD58 (0x40+58) /* READ_OCR */ |
| /* Control signals (Platform dependent) */ |
| #define SELECT() PORTB &= ~_BV(PB2) /* MMC CS = L */ |
| #define DESELECT() PORTB |= _BV(PB2) /* MMC CS = H */ |
| #define SOCKPORT PINB /* Socket contact port */ |
| #define SOCKINS 0x01 /* Card detect switch (PB0) */ |
| /*-------------------------------------------------------------------------- |
| Module Private Functions |
| ---------------------------------------------------------------------------*/ |
| static volatile |
| DSTATUS Stat = STA_NOINIT; /* Disk status */ |
| static volatile |
| BYTE Timer1, Timer2; /* 100Hz decrement timer */ |
| static |
| BYTE CardType; /* b0:MMC, b1:SDC, b2:Block addressing */ |
| /*-----------------------------------------------------------------------*/ |
| /* Transmit a byte to MMC via SPI (Platform dependent) */ |
| /*-----------------------------------------------------------------------*/ |
| #define xmit_spi(dat) SPDR=(dat); loop_until_bit_is_set(SPSR,SPIF) |
| /*-----------------------------------------------------------------------*/ |
| /* Receive a byte from MMC via SPI (Platform dependent) */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE rcvr_spi (void) |
| { |
| SPDR = 0xFF; |
| loop_until_bit_is_set(SPSR, SPIF); |
| return SPDR; |
| } |
| /* Alternative macro to receive data fast */ |
| #define rcvr_spi_m(dst) SPDR=0xFF; loop_until_bit_is_set(SPSR,SPIF); *(dst)=SPDR |
| /*-----------------------------------------------------------------------*/ |
| /* Wait for card ready */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE wait_ready (void) |
| { |
| BYTE res; |
| Timer2 = 50; /* Wait for ready in timeout of 500ms */ |
| rcvr_spi(); |
| do |
| res = rcvr_spi(); |
| while ((res != 0xFF) && Timer2); |
| return res; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Receive a data packet from MMC */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BOOL rcvr_datablock ( |
| BYTE *buff, /* Data buffer to store received data */ |
| UINT btr /* Byte count (must be even number) */ |
| ) |
| { |
| BYTE token; |
| Timer1 = 10; |
| do { /* Wait for data packet in timeout of 100ms */ |
| token = rcvr_spi(); |
| } while ((token == 0xFF) && Timer1); |
| if(token != 0xFE) return FALSE; /* If not valid data token, retutn with error */ |
| do { /* Receive the data block into buffer */ |
| rcvr_spi_m(buff++); |
| rcvr_spi_m(buff++); |
| } while (btr -= 2); |
| rcvr_spi(); /* Discard CRC */ |
| rcvr_spi(); |
| return TRUE; /* Return with success */ |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Send a data packet to MMC */ |
| /*-----------------------------------------------------------------------*/ |
| #if _READONLY == 0 |
| static |
| BOOL xmit_datablock ( |
| const BYTE *buff, /* 512 byte data block to be transmitted */ |
| BYTE token /* Data/Stop token */ |
| ) |
| { |
| BYTE resp, wc; |
| if (wait_ready() != 0xFF) return FALSE; |
| xmit_spi(token); /* Xmit data token */ |
| if (token != 0xFD) { /* Is data token */ |
| wc = 0; |
| do { /* Xmit the 512 byte data block to MMC */ |
| xmit_spi(*buff++); |
| xmit_spi(*buff++); |
| } while (--wc); |
| xmit_spi(0xFF); /* CRC (Dummy) */ |
| xmit_spi(0xFF); |
| resp = rcvr_spi(); /* Reveive data response */ |
| if ((resp & 0x1F) != 0x05) /* If not accepted, return with error */ |
| return FALSE; |
| } |
| return TRUE; |
| } |
| #endif /* _READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Send a command packet to MMC */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE send_cmd ( |
| BYTE cmd, /* Command byte */ |
| DWORD arg /* Argument */ |
| ) |
| { |
| BYTE n, res; |
| if (wait_ready() != 0xFF) return 0xFF; |
| /* Send command packet */ |
| xmit_spi(cmd); /* Command */ |
| xmit_spi((BYTE)(arg >> 24)); /* Argument[31..24] */ |
| xmit_spi((BYTE)(arg >> 16)); /* Argument[23..16] */ |
| xmit_spi((BYTE)(arg >> 8)); /* Argument[15..8] */ |
| xmit_spi((BYTE)arg); /* Argument[7..0] */ |
| n = 0; |
| if (cmd == CMD0) n = 0x95; /* CRC for CMD0(0) */ |
| if (cmd == CMD8) n = 0x87; /* CRC for CMD8(0x1AA) */ |
| xmit_spi(n); |
| /* Receive command response */ |
| if (cmd == CMD12) rcvr_spi(); /* Skip a stuff byte when stop reading */ |
| n = 10; /* Wait for a valid response in timeout of 10 attempts */ |
| do |
| res = rcvr_spi(); |
| while ((res & 0x80) && --n); |
| return res; /* Return with the response value */ |
| } |
| /*-------------------------------------------------------------------------- |
| Public Functions |
| ---------------------------------------------------------------------------*/ |
| /*-----------------------------------------------------------------------*/ |
| /* Initialize Disk Drive */ |
| /*-----------------------------------------------------------------------*/ |
| DSTATUS disk_initialize ( |
| BYTE drv /* Physical drive nmuber (0) */ |
| ) |
| { |
| BYTE n, ty, ocr[4]; |
| if (drv) return STA_NOINIT; /* Supports only single drive */ |
| if (Stat & STA_NODISK) return Stat; /* No card in the socket */ |
| for (n = 10; n; n--) rcvr_spi(); /* 80 dummy clocks */ |
| SELECT(); /* CS = L */ |
| ty = 0; |
| if (send_cmd(CMD0, 0) == 1) { /* Enter Idle state */ |
| Timer1 = 100; /* Initialization timeout of 1000 msec */ |
| if (send_cmd(CMD8, 0x1AA) == 1) { /* SDC Ver2+ */ |
| for (n = 0; n < 4; n++) ocr[n] = rcvr_spi(); |
| if (ocr[2] == 0x01 && ocr[3] == 0xAA) { /* The card can work at vdd range of 2.7-3.6V */ |
| do { |
| if (send_cmd(CMD55, 0) <= 1 && send_cmd(CMD41, 1UL << 30) == 0) break; /* ACMD41 with HCS bit */ |
| } while (Timer1); |
| if (Timer1 && send_cmd(CMD58, 0) == 0) { /* Check CCS bit */ |
| for (n = 0; n < 4; n++) ocr[n] = rcvr_spi(); |
| ty = (ocr[0] & 0x40) ? 6 : 2; |
| } |
| } |
| } else { /* SDC Ver1 or MMC */ |
| ty = (send_cmd(CMD55, 0) <= 1 && send_cmd(CMD41, 0) <= 1) ? 2 : 1; /* SDC : MMC */ |
| do { |
| if (ty == 2) { |
| if (send_cmd(CMD55, 0) <= 1 && send_cmd(CMD41, 0) == 0) break; /* ACMD41 */ |
| } else { |
| if (send_cmd(CMD1, 0) == 0) break; /* CMD1 */ |
| } |
| } while (Timer1); |
| if (!Timer1 || send_cmd(CMD16, 512) != 0) /* Select R/W block length */ |
| ty = 0; |
| } |
| } |
| CardType = ty; |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| if (ty) { /* Initialization succeded */ |
| Stat &= ~STA_NOINIT; /* Clear STA_NOINIT */ |
| } else { /* Initialization failed */ |
| Stat |= STA_NOINIT; /* Set STA_NOINIT */ |
| } |
| return Stat; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Get Disk Status */ |
| /*-----------------------------------------------------------------------*/ |
| DSTATUS disk_status ( |
| BYTE drv /* Physical drive nmuber (0) */ |
| ) |
| { |
| if (drv) return STA_NOINIT; /* Supports only single drive */ |
| return Stat; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Read Sector(s) */ |
| /*-----------------------------------------------------------------------*/ |
| DRESULT disk_read ( |
| BYTE drv, /* Physical drive nmuber (0) */ |
| BYTE *buff, /* Pointer to the data buffer to store read data */ |
| DWORD sector, /* Start sector number (LBA) */ |
| BYTE count /* Sector count (1..255) */ |
| ) |
| { |
| if (drv || !count) return RES_PARERR; |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| if (!(CardType & 4)) sector *= 512; /* Convert to byte address if needed */ |
| SELECT(); /* CS = L */ |
| if (count == 1) { /* Single block read */ |
| if ((send_cmd(CMD17, sector) == 0) /* READ_SINGLE_BLOCK */ |
| && rcvr_datablock(buff, 512)) |
| count = 0; |
| } |
| else { /* Multiple block read */ |
| if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */ |
| do { |
| if (!rcvr_datablock(buff, 512)) break; |
| buff += 512; |
| } while (--count); |
| send_cmd(CMD12, 0); /* STOP_TRANSMISSION */ |
| } |
| } |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| return count ? RES_ERROR : RES_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Write Sector(s) */ |
| /*-----------------------------------------------------------------------*/ |
| #if _READONLY == 0 |
| DRESULT disk_write ( |
| BYTE drv, /* Physical drive nmuber (0) */ |
| const BYTE *buff, /* Pointer to the data to be written */ |
| DWORD sector, /* Start sector number (LBA) */ |
| BYTE count /* Sector count (1..255) */ |
| ) |
| { |
| if (drv || !count) return RES_PARERR; |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| if (Stat & STA_PROTECT) return RES_WRPRT; |
| if (!(CardType & 4)) sector *= 512; /* Convert to byte address if needed */ |
| SELECT(); /* CS = L */ |
| if (count == 1) { /* Single block write */ |
| if ((send_cmd(CMD24, sector) == 0) /* WRITE_BLOCK */ |
| && xmit_datablock(buff, 0xFE)) |
| count = 0; |
| } |
| else { /* Multiple block write */ |
| if (CardType & 2) { |
| send_cmd(CMD55, 0); send_cmd(CMD23, count); /* ACMD23 */ |
| } |
| if (send_cmd(CMD25, sector) == 0) { /* WRITE_MULTIPLE_BLOCK */ |
| do { |
| if (!xmit_datablock(buff, 0xFC)) break; |
| buff += 512; |
| } while (--count); |
| if (!xmit_datablock(0, 0xFD)) /* STOP_TRAN token */ |
| count = 1; |
| } |
| } |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| return count ? RES_ERROR : RES_OK; |
| } |
| #endif /* _READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Miscellaneous Functions */ |
| /*-----------------------------------------------------------------------*/ |
| DRESULT disk_ioctl ( |
| BYTE drv, /* Physical drive nmuber (0) */ |
| BYTE ctrl, /* Control code */ |
| void *buff /* Buffer to send/receive data block */ |
| ) |
| { |
| DRESULT res; |
| BYTE n, csd[16], *ptr = buff; |
| WORD csize; |
| if (drv) return RES_PARERR; |
| SELECT(); /* CS = L */ |
| res = RES_ERROR; |
| switch (ctrl) { |
| case GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */ |
| if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) { |
| if ((csd[0] >> 6) == 1) { /* SDC ver 2.00 */ |
| csize = csd[9] + ((WORD)csd[8] << 8) + 1; |
| *(DWORD*)buff = (DWORD)csize << 10; |
| } else { /* MMC or SDC ver 1.XX */ |
| n = (csd[5] & 15) + ((csd[10] & 128) >> 7) + ((csd[9] & 3) << 1) + 2; |
| csize = (csd[8] >> 6) + ((WORD)csd[7] << 2) + ((WORD)(csd[6] & 3) << 10) + 1; |
| *(DWORD*)buff = (DWORD)csize << (n - 9); |
| } |
| res = RES_OK; |
| } |
| break; |
| case GET_SECTOR_SIZE : /* Get sectors on the disk (WORD) */ |
| *(WORD*)buff = 512; |
| res = RES_OK; |
| break; |
| case CTRL_SYNC : /* Make sure that data has been written */ |
| if (wait_ready() == 0xFF) |
| res = RES_OK; |
| break; |
| case MMC_GET_CSD : /* Receive CSD as a data block (16 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| if ((send_cmd(CMD9, 0) == 0) /* READ_CSD */ |
| && rcvr_datablock(ptr, 16)) |
| res = RES_OK; |
| break; |
| case MMC_GET_CID : /* Receive CID as a data block (16 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| if ((send_cmd(CMD10, 0) == 0) /* READ_CID */ |
| && rcvr_datablock(ptr, 16)) |
| res = RES_OK; |
| break; |
| case MMC_GET_OCR : /* Receive OCR as an R3 resp (4 bytes) */ |
| if (Stat & STA_NOINIT) return RES_NOTRDY; |
| if (send_cmd(CMD58, 0) == 0) { /* READ_OCR */ |
| for (n = 0; n < 4; n++) |
| *ptr++ = rcvr_spi(); |
| res = RES_OK; |
| } |
| break; |
| default: |
| res = RES_PARERR; |
| } |
| DESELECT(); /* CS = H */ |
| rcvr_spi(); /* Idle (Release DO) */ |
| return res; |
| } |
| /*---------------------------------------*/ |
| /* Device timer interrupt procedure */ |
| /* This must be called in period of 10ms */ |
| /* (Platform dependent) */ |
| void disk_timerproc (void) |
| { |
| static BYTE pv; |
| BYTE n, s; |
| n = Timer1; /* 100Hz decrement timer */ |
| if (n) Timer1 = --n; |
| n = Timer2; |
| if (n) Timer2 = --n; |
| n = pv; |
| pv = SOCKPORT & (SOCKINS); /* Sample socket switch */ |
| if (n == pv) { /* Have contacts stabled? */ |
| s = Stat; |
| if (pv & SOCKINS) /* INS = H (Socket empty) */ |
| s |= (STA_NODISK | STA_NOINIT); |
| else /* INS = L (Card inserted) */ |
| s &= ~STA_NODISK; |
| Stat = s; |
| } |
| } |
| /Designs/GPSRL03A/tff.c |
|---|
| 0,0 → 1,1580 |
| /*--------------------------------------------------------------------------/ |
| / FatFs - Tiny FAT file system module R0.04b (C)ChaN, 2007 |
| /---------------------------------------------------------------------------/ |
| / The FatFs module is an experimenal project to implement FAT file system to |
| / cheap microcontrollers. This is a free software and is opened for education, |
| / research and development under license policy of following trems. |
| / |
| / Copyright (C) 2007, ChaN, all right reserved. |
| / |
| / * The FatFs module is a free software and there is no warranty. |
| / * You can use, modify and/or redistribute it for personal, non-profit or |
| / profit use without any restriction under your responsibility. |
| / * Redistributions of source code must retain the above copyright notice. |
| / |
| /---------------------------------------------------------------------------/ |
| / Feb 26, 2006 R0.00 Prototype. |
| / Apr 29, 2006 R0.01 First stable version. |
| / Jun 01, 2006 R0.02 Added FAT12 support. |
| / Removed unbuffered mode. |
| / Fixed a problem on small (<32M) patition. |
| / Jun 10, 2006 R0.02a Added a configuration option (_FS_MINIMUM). |
| / Sep 22, 2006 R0.03 Added f_rename(). |
| / Changed option _FS_MINIMUM to _FS_MINIMIZE. |
| / Dec 09, 2006 R0.03a Improved cluster scan algolithm to write files fast. |
| / Feb 04, 2007 R0.04 Added FAT32 supprt. |
| / Changed some interfaces incidental to FatFs. |
| / Changed f_mountdrv() to f_mount(). |
| / Apr 01, 2007 R0.04a Added a capability of extending file size to f_lseek(). |
| / Added minimization level 3. |
| / Fixed a problem in FAT32 support. |
| / xxx xx, 2007 R0.04b Added a configuration option _USE_NTFLAG. |
| / Added FSInfo support. |
| / Fixed some problems corresponds to FAT32 support. |
| / Fixed DBCS name can result FR_INVALID_NAME. |
| / Fixed short seek (<= csize) collapses the file object. |
| /---------------------------------------------------------------------------*/ |
| #include <string.h> |
| #include "tff.h" /* Tiny-FatFs declarations */ |
| #include "diskio.h" /* Include file for user provided disk functions */ |
| static |
| FATFS *FatFs; /* Pointer to the file system objects (logical drive) */ |
| static |
| WORD fsid; /* File system mount ID */ |
| /*------------------------------------------------------------------------- |
| Module Private Functions |
| -------------------------------------------------------------------------*/ |
| /*-----------------------------------------------------------------------*/ |
| /* Change window offset */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BOOL move_window ( /* TRUE: successful, FALSE: failed */ |
| DWORD sector /* Sector number to make apperance in the FatFs->win */ |
| ) /* Move to zero only writes back dirty window */ |
| { |
| DWORD wsect; |
| FATFS *fs = FatFs; |
| wsect = fs->winsect; |
| if (wsect != sector) { /* Changed current window */ |
| #if !_FS_READONLY |
| BYTE n; |
| if (fs->winflag) { /* Write back dirty window if needed */ |
| if (disk_write(0, fs->win, wsect, 1) != RES_OK) |
| return FALSE; |
| fs->winflag = 0; |
| if (wsect < (fs->fatbase + fs->sects_fat)) { /* In FAT area */ |
| for (n = fs->n_fats; n >= 2; n--) { /* Refrect the change to all FAT copies */ |
| wsect += fs->sects_fat; |
| disk_write(0, fs->win, wsect, 1); |
| } |
| } |
| } |
| #endif |
| if (sector) { |
| if (disk_read(0, fs->win, sector, 1) != RES_OK) |
| return FALSE; |
| fs->winsect = sector; |
| } |
| } |
| return TRUE; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Clean-up cached data */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| FRESULT sync (void) /* FR_OK: successful, FR_RW_ERROR: failed */ |
| { |
| FATFS *fs = FatFs; |
| fs->winflag = 1; |
| if (!move_window(0)) return FR_RW_ERROR; |
| #if _USE_FSINFO |
| if (fs->fs_type == FS_FAT32 && fs->fsi_flag) { /* Update FSInfo sector if needed */ |
| fs->winsect = 0; |
| memset(fs->win, 0, 512); |
| ST_WORD(&fs->win[BS_55AA], 0xAA55); |
| ST_DWORD(&fs->win[FSI_LeadSig], 0x41615252); |
| ST_DWORD(&fs->win[FSI_StrucSig], 0x61417272); |
| ST_DWORD(&fs->win[FSI_Free_Count], fs->free_clust); |
| ST_DWORD(&fs->win[FSI_Nxt_Free], fs->last_clust); |
| disk_write(0, fs->win, fs->fsi_sector, 1); |
| fs->fsi_flag = 0; |
| } |
| #endif |
| if (disk_ioctl(0, CTRL_SYNC, NULL) != RES_OK) return FR_RW_ERROR; |
| return FR_OK; |
| } |
| #endif |
| /*-----------------------------------------------------------------------*/ |
| /* Get a cluster status */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| CLUST get_cluster ( /* 0,>=2: successful, 1: failed */ |
| CLUST clust /* Cluster# to get the link information */ |
| ) |
| { |
| WORD wc, bc; |
| DWORD fatsect; |
| FATFS *fs = FatFs; |
| if (clust >= 2 && clust < fs->max_clust) { /* Valid cluster# */ |
| fatsect = fs->fatbase; |
| switch (fs->fs_type) { |
| case FS_FAT12 : |
| bc = (WORD)clust * 3 / 2; |
| if (!move_window(fatsect + bc / 512)) break; |
| wc = fs->win[bc % 512]; bc++; |
| if (!move_window(fatsect + bc / 512)) break; |
| wc |= (WORD)fs->win[bc % 512] << 8; |
| return (clust & 1) ? (wc >> 4) : (wc & 0xFFF); |
| case FS_FAT16 : |
| if (!move_window(fatsect + clust / 256)) break; |
| return LD_WORD(&fs->win[((WORD)clust * 2) % 512]); |
| #if _FAT32 |
| case FS_FAT32 : |
| if (!move_window(fatsect + clust / 128)) break; |
| return LD_DWORD(&fs->win[((WORD)clust * 4) % 512]) & 0x0FFFFFFF; |
| #endif |
| } |
| } |
| return 1; /* There is no cluster information, or an error occured */ |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Change a cluster status */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| BOOL put_cluster ( /* TRUE: successful, FALSE: failed */ |
| CLUST clust, /* Cluster# to change */ |
| CLUST val /* New value to mark the cluster */ |
| ) |
| { |
| WORD bc; |
| BYTE *p; |
| DWORD fatsect; |
| FATFS *fs = FatFs; |
| fatsect = fs->fatbase; |
| switch (fs->fs_type) { |
| case FS_FAT12 : |
| bc = (WORD)clust * 3 / 2; |
| if (!move_window(fatsect + bc / 512)) return FALSE; |
| p = &fs->win[bc % 512]; |
| *p = (clust & 1) ? ((*p & 0x0F) | ((BYTE)val << 4)) : (BYTE)val; |
| bc++; |
| fs->winflag = 1; |
| if (!move_window(fatsect + bc / 512)) return FALSE; |
| p = &fs->win[bc % 512]; |
| *p = (clust & 1) ? (BYTE)(val >> 4) : ((*p & 0xF0) | ((BYTE)(val >> 8) & 0x0F)); |
| break; |
| case FS_FAT16 : |
| if (!move_window(fatsect + clust / 256)) return FALSE; |
| ST_WORD(&fs->win[((WORD)clust * 2) % 512], (WORD)val); |
| break; |
| #if _FAT32 |
| case FS_FAT32 : |
| if (!move_window(fatsect + clust / 128)) return FALSE; |
| ST_DWORD(&fs->win[((WORD)clust * 4) % 512], val); |
| break; |
| #endif |
| default : |
| return FALSE; |
| } |
| fs->winflag = 1; |
| return TRUE; |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Remove a cluster chain */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| BOOL remove_chain ( /* TRUE: successful, FALSE: failed */ |
| CLUST clust /* Cluster# to remove chain from */ |
| ) |
| { |
| CLUST nxt; |
| FATFS *fs = FatFs; |
| while (clust >= 2 && clust < fs->max_clust) { |
| nxt = get_cluster(clust); |
| if (nxt == 1) return FALSE; |
| if (!put_cluster(clust, 0)) return FALSE; |
| if (fs->free_clust != (CLUST)0xFFFFFFFF) { |
| fs->free_clust++; |
| #if _USE_FSINFO |
| fs->fsi_flag = 1; |
| #endif |
| } |
| clust = nxt; |
| } |
| return TRUE; |
| } |
| #endif |
| /*-----------------------------------------------------------------------*/ |
| /* Stretch or create a cluster chain */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| CLUST create_chain ( /* 0: no free cluster, 1: error, >=2: new cluster number */ |
| CLUST clust /* Cluster# to stretch, 0 means create new */ |
| ) |
| { |
| CLUST cstat, ncl, scl, mcl; |
| FATFS *fs = FatFs; |
| mcl = fs->max_clust; |
| if (clust == 0) { /* Create new chain */ |
| scl = fs->last_clust; /* Get last allocated cluster */ |
| if (scl < 2 || scl >= mcl) scl = 1; |
| } |
| else { /* Stretch existing chain */ |
| cstat = get_cluster(clust); /* Check the cluster status */ |
| if (cstat < 2) return 1; /* It is an invalid cluster */ |
| if (cstat < mcl) return cstat; /* It is already followed by next cluster */ |
| scl = clust; |
| } |
| ncl = scl; /* Start cluster */ |
| for (;;) { |
| ncl++; /* Next cluster */ |
| if (ncl >= mcl) { /* Wrap around */ |
| ncl = 2; |
| if (ncl > scl) return 0; /* No free custer */ |
| } |
| cstat = get_cluster(ncl); /* Get the cluster status */ |
| if (cstat == 0) break; /* Found a free cluster */ |
| if (cstat == 1) return 1; /* Any error occured */ |
| if (ncl == scl) return 0; /* No free custer */ |
| } |
| if (!put_cluster(ncl, (CLUST)0x0FFFFFFF)) return 1; /* Mark the new cluster "in use" */ |
| if (clust && !put_cluster(clust, ncl)) return 1; /* Link it to previous one if needed */ |
| fs->last_clust = ncl; /* Update fsinfo */ |
| if (fs->free_clust != (CLUST)0xFFFFFFFF) { |
| fs->free_clust--; |
| #if _USE_FSINFO |
| fs->fsi_flag = 1; |
| #endif |
| } |
| return ncl; /* Return new cluster number */ |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Get sector# from cluster# */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| DWORD clust2sect ( /* !=0: sector number, 0: failed - invalid cluster# */ |
| CLUST clust /* Cluster# to be converted */ |
| ) |
| { |
| FATFS *fs = FatFs; |
| clust -= 2; |
| if (clust >= (fs->max_clust - 2)) return 0; /* Invalid cluster# */ |
| return (DWORD)clust * fs->sects_clust + fs->database; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Move directory pointer to next */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BOOL next_dir_entry ( /* TRUE: successful, FALSE: could not move next */ |
| DIR *dirobj /* Pointer to directory object */ |
| ) |
| { |
| CLUST clust; |
| WORD idx; |
| FATFS *fs = FatFs; |
| idx = dirobj->index + 1; |
| if ((idx & 15) == 0) { /* Table sector changed? */ |
| dirobj->sect++; /* Next sector */ |
| if (!dirobj->clust) { /* In static table */ |
| if (idx >= fs->n_rootdir) return FALSE; /* Reached to end of table */ |
| } else { /* In dynamic table */ |
| if (((idx / 16) & (fs->sects_clust - 1)) == 0) { /* Cluster changed? */ |
| clust = get_cluster(dirobj->clust); /* Get next cluster */ |
| if (clust < 2 || clust >= fs->max_clust) /* Reached to end of table */ |
| return FALSE; |
| dirobj->clust = clust; /* Initialize for new cluster */ |
| dirobj->sect = clust2sect(clust); |
| } |
| } |
| } |
| dirobj->index = idx; /* Lower 4 bit of dirobj->index indicates offset in dirobj->sect */ |
| return TRUE; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Get file status from directory entry */ |
| /*-----------------------------------------------------------------------*/ |
| #if _FS_MINIMIZE <= 1 |
| static |
| void get_fileinfo ( /* No return code */ |
| FILINFO *finfo, /* Ptr to store the File Information */ |
| const BYTE *dir /* Ptr to the directory entry */ |
| ) |
| { |
| BYTE n, c, a; |
| char *p; |
| p = &finfo->fname[0]; |
| a = _USE_NTFLAG ? dir[DIR_NTres] : 0; /* NT flag */ |
| for (n = 0; n < 8; n++) { /* Convert file name (body) */ |
| c = dir[n]; |
| if (c == ' ') break; |
| if (c == 0x05) c = 0xE5; |
| if (a & 0x08 && c >= 'A' && c <= 'Z') c += 0x20; |
| *p++ = c; |
| } |
| if (dir[8] != ' ') { /* Convert file name (extension) */ |
| *p++ = '.'; |
| for (n = 8; n < 11; n++) { |
| c = dir[n]; |
| if (c == ' ') break; |
| if (a & 0x10 && c >= 'A' && c <= 'Z') c += 0x20; |
| *p++ = c; |
| } |
| } |
| *p = '\0'; |
| finfo->fattrib = dir[DIR_Attr]; /* Attribute */ |
| finfo->fsize = LD_DWORD(&dir[DIR_FileSize]); /* Size */ |
| finfo->fdate = LD_WORD(&dir[DIR_WrtDate]); /* Date */ |
| finfo->ftime = LD_WORD(&dir[DIR_WrtTime]); /* Time */ |
| } |
| #endif /* _FS_MINIMIZE <= 1 */ |
| /*-----------------------------------------------------------------------*/ |
| /* Pick a paragraph and create the name in format of directory entry */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| char make_dirfile ( /* 1: error - detected an invalid format, '\0'or'/': next character */ |
| const char **path, /* Pointer to the file path pointer */ |
| char *dirname /* Pointer to directory name buffer {Name(8), Ext(3), NT flag(1)} */ |
| ) |
| { |
| BYTE n, t, c, a, b; |
| memset(dirname, ' ', 8+3); /* Fill buffer with spaces */ |
| a = 0; b = 0x18; /* NT flag */ |
| n = 0; t = 8; |
| for (;;) { |
| c = *(*path)++; |
| if (c == '\0' || c == '/') { /* Reached to end of str or directory separator */ |
| if (n == 0) break; |
| dirname[11] = _USE_NTFLAG ? (a & b) : 0; |
| return c; |
| } |
| if (c <= ' ' || c == 0x7F) break; /* Reject invisible chars */ |
| if (c == '.') { |
| if (!(a & 1) && n >= 1 && n <= 8) { /* Enter extension part */ |
| n = 8; t = 11; continue; |
| } |
| break; |
| } |
| if (_USE_SJIS && |
| ((c >= 0x81 && c <= 0x9F) || /* Accept S-JIS code */ |
| (c >= 0xE0 && c <= 0xFC))) { |
| if (n == 0 && c == 0xE5) /* Change heading \xE5 to \x05 */ |
| c = 0x05; |
| a ^= 1; goto md_l2; |
| } |
| if (c == '"') break; /* Reject " */ |
| if (c <= ')') goto md_l1; /* Accept ! # $ % & ' ( ) */ |
| if (c <= ',') break; /* Reject * + , */ |
| if (c <= '9') goto md_l1; /* Accept - 0-9 */ |
| if (c <= '?') break; /* Reject : ; < = > ? */ |
| if (!(a & 1)) { /* These checks are not applied to S-JIS 2nd byte */ |
| if (c == '|') break; /* Reject | */ |
| if (c >= '[' && c <= ']') break;/* Reject [ \ ] */ |
| if (_USE_NTFLAG && c >= 'A' && c <= 'Z') |
| (t == 8) ? (b &= ~0x08) : (b &= ~0x10); |
| if (c >= 'a' && c <= 'z') { /* Convert to upper case */ |
| c -= 0x20; |
| if (_USE_NTFLAG) (t == 8) ? (a |= 0x08) : (a |= 0x10); |
| } |
| } |
| md_l1: |
| a &= ~1; |
| md_l2: |
| if (n >= t) break; |
| dirname[n++] = c; |
| } |
| return 1; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Trace a file path */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| FRESULT trace_path ( /* FR_OK(0): successful, !=0: error code */ |
| DIR *dirobj, /* Pointer to directory object to return last directory */ |
| char *fn, /* Pointer to last segment name to return */ |
| const char *path, /* Full-path string to trace a file or directory */ |
| BYTE **dir /* Directory pointer in Win[] to retutn */ |
| ) |
| { |
| CLUST clust; |
| char ds; |
| BYTE *dptr = NULL; |
| FATFS *fs = FatFs; |
| /* Initialize directory object */ |
| clust = fs->dirbase; |
| #if _FAT32 |
| if (fs->fs_type == FS_FAT32) { |
| dirobj->clust = dirobj->sclust = clust; |
| dirobj->sect = clust2sect(clust); |
| } else |
| #endif |
| { |
| dirobj->clust = dirobj->sclust = 0; |
| dirobj->sect = clust; |
| } |
| dirobj->index = 0; |
| dirobj->fs = fs; |
| if (*path == '\0') { /* Null path means the root directory */ |
| *dir = NULL; return FR_OK; |
| } |
| for (;;) { |
| ds = make_dirfile(&path, fn); /* Get a paragraph into fn[] */ |
| if (ds == 1) return FR_INVALID_NAME; |
| for (;;) { |
| if (!move_window(dirobj->sect)) return FR_RW_ERROR; |
| dptr = &fs->win[(dirobj->index & 15) * 32]; /* Pointer to the directory entry */ |
| if (dptr[DIR_Name] == 0) /* Has it reached to end of dir? */ |
| return !ds ? FR_NO_FILE : FR_NO_PATH; |
| if (dptr[DIR_Name] != 0xE5 /* Matched? */ |
| && !(dptr[DIR_Attr] & AM_VOL) |
| && !memcmp(&dptr[DIR_Name], fn, 8+3) ) break; |
| if (!next_dir_entry(dirobj)) /* Next directory pointer */ |
| return !ds ? FR_NO_FILE : FR_NO_PATH; |
| } |
| if (!ds) { *dir = dptr; return FR_OK; } /* Matched with end of path */ |
| if (!(dptr[DIR_Attr] & AM_DIR)) return FR_NO_PATH; /* Cannot trace because it is a file */ |
| clust = /* Get cluster# of the directory */ |
| #if _FAT32 |
| ((DWORD)LD_WORD(&dptr[DIR_FstClusHI]) << 16) | |
| #endif |
| LD_WORD(&dptr[DIR_FstClusLO]); |
| dirobj->clust = dirobj->sclust = clust; /* Restart scannig with the new directory */ |
| dirobj->sect = clust2sect(clust); |
| dirobj->index = 2; |
| } |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Reserve a directory entry */ |
| /*-----------------------------------------------------------------------*/ |
| #if !_FS_READONLY |
| static |
| FRESULT reserve_direntry ( /* FR_OK: successful, FR_DENIED: no free entry, FR_RW_ERROR: a disk error occured */ |
| DIR *dirobj, /* Target directory to create new entry */ |
| BYTE **dir /* Pointer to pointer to created entry to retutn */ |
| ) |
| { |
| CLUST clust; |
| DWORD sector; |
| BYTE c, n, *dptr; |
| FATFS *fs = FatFs; |
| /* Re-initialize directory object */ |
| clust = dirobj->sclust; |
| if (clust) { /* Dyanmic directory table */ |
| dirobj->clust = clust; |
| dirobj->sect = clust2sect(clust); |
| } else { /* Static directory table */ |
| dirobj->sect = fs->dirbase; |
| } |
| dirobj->index = 0; |
| do { |
| if (!move_window(dirobj->sect)) return FR_RW_ERROR; |
| dptr = &fs->win[(dirobj->index & 15) * 32]; /* Pointer to the directory entry */ |
| c = dptr[DIR_Name]; |
| if (c == 0 || c == 0xE5) { /* Found an empty entry! */ |
| *dir = dptr; return FR_OK; |
| } |
| } while (next_dir_entry(dirobj)); /* Next directory pointer */ |
| /* Reached to end of the directory table */ |
| /* Abort when static table or could not stretch dynamic table */ |
| if (!clust || !(clust = create_chain(dirobj->clust))) return FR_DENIED; |
| if (clust == 1 || !move_window(0)) return FR_RW_ERROR; |
| fs->winsect = sector = clust2sect(clust); /* Cleanup the expanded table */ |
| memset(fs->win, 0, 512); |
| for (n = fs->sects_clust; n; n--) { |
| if (disk_write(0, fs->win, sector, 1) != RES_OK) |
| return FR_RW_ERROR; |
| sector++; |
| } |
| fs->winflag = 1; |
| *dir = fs->win; |
| return FR_OK; |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Load boot record and check if it is a FAT boot record */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| BYTE check_fs ( /* 0:The FAT boot record, 1:Valid boot record but not an FAT, 2:Not a boot record or error */ |
| DWORD sect /* Sector# to check if it is a FAT boot record or not */ |
| ) |
| { |
| FATFS *fs = FatFs; |
| if (disk_read(0, fs->win, sect, 1) != RES_OK) /* Load boot record */ |
| return 2; |
| if (LD_WORD(&fs->win[BS_55AA]) != 0xAA55) /* Check record signature */ |
| return 2; |
| if (!memcmp(&fs->win[BS_FilSysType], "FAT", 3)) /* Check FAT signature */ |
| return 0; |
| #if _FAT32 |
| if (!memcmp(&fs->win[BS_FilSysType32], "FAT32", 5) && !(fs->win[BPB_ExtFlags] & 0x80)) |
| return 0; |
| #endif |
| return 1; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Make sure that the file system is valid */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| FRESULT auto_mount ( /* FR_OK(0): successful, !=0: any error occured */ |
| const char **path, /* Pointer to pointer to the path name (drive number) */ |
| BYTE chk_wp /* !=0: Check media write protection for wrinting fuctions */ |
| ) |
| { |
| BYTE fmt; |
| DSTATUS stat; |
| DWORD bootsect, fatsize, totalsect, maxclust; |
| const char *p = *path; |
| FATFS *fs = FatFs; |
| while (*p == ' ') p++; /* Strip leading spaces */ |
| if (*p == '/') p++; /* Strip heading slash */ |
| *path = p; /* Return pointer to the path name */ |
| /* Is the file system object registered? */ |
| if (!fs) return FR_NOT_ENABLED; |
| /* Chekck if the logical drive has been mounted or not */ |
| if (fs->fs_type) { |
| stat = disk_status(0); |
| if (!(stat & STA_NOINIT)) { /* If the physical drive is kept initialized */ |
| #if !_FS_READONLY |
| if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ |
| return FR_WRITE_PROTECTED; |
| #endif |
| return FR_OK; /* The file system object is valid */ |
| } |
| } |
| /* The logical drive has not been mounted, following code attempts to mount the logical drive */ |
| memset(fs, 0, sizeof(FATFS)); /* Clean-up the file system object */ |
| stat = disk_initialize(0); /* Initialize low level disk I/O layer */ |
| if (stat & STA_NOINIT) /* Check if the drive is ready */ |
| return FR_NOT_READY; |
| #if !_FS_READONLY |
| if (chk_wp && (stat & STA_PROTECT)) /* Check write protection if needed */ |
| return FR_WRITE_PROTECTED; |
| #endif |
| /* Search FAT partition on the drive */ |
| fmt = check_fs(bootsect = 0); /* Check sector 0 as an SFD format */ |
| if (fmt == 1) { /* Not a FAT boot record, it may be patitioned */ |
| /* Check a partition listed in top of the partition table */ |
| if (fs->win[MBR_Table+4]) { /* Is the 1st partition existing? */ |
| bootsect = LD_DWORD(&fs->win[MBR_Table+8]); /* Partition offset in LBA */ |
| fmt = check_fs(bootsect); /* Check the partition */ |
| } |
| } |
| if (fmt || LD_WORD(&fs->win[BPB_BytsPerSec]) != 512) /* No valid FAT patition is found */ |
| return FR_NO_FILESYSTEM; |
| /* Initialize the file system object */ |
| fatsize = LD_WORD(&fs->win[BPB_FATSz16]); /* Number of sectors per FAT */ |
| if (!fatsize) fatsize = LD_DWORD(&fs->win[BPB_FATSz32]); |
| fs->sects_fat = (CLUST)fatsize; |
| fs->n_fats = fs->win[BPB_NumFATs]; /* Number of FAT copies */ |
| fatsize *= fs->n_fats; /* (Number of sectors in FAT area) */ |
| fs->fatbase = bootsect + LD_WORD(&fs->win[BPB_RsvdSecCnt]); /* FAT start sector (lba) */ |
| fs->sects_clust = fs->win[BPB_SecPerClus]; /* Number of sectors per cluster */ |
| fs->n_rootdir = LD_WORD(&fs->win[BPB_RootEntCnt]); /* Nmuber of root directory entries */ |
| totalsect = LD_WORD(&fs->win[BPB_TotSec16]); /* Number of sectors on the file system */ |
| if (!totalsect) totalsect = LD_DWORD(&fs->win[BPB_TotSec32]); |
| fs->max_clust = maxclust = (totalsect /* Last cluster# + 1 */ |
| - LD_WORD(&fs->win[BPB_RsvdSecCnt]) - fatsize - fs->n_rootdir / 16 |
| ) / fs->sects_clust + 2; |
| fmt = FS_FAT12; /* Determine the FAT sub type */ |
| if (maxclust > 0xFF7) fmt = FS_FAT16; |
| if (maxclust > 0xFFF7) |
| #if !_FAT32 |
| return FR_NO_FILESYSTEM; |
| #else |
| fmt = FS_FAT32; |
| if (fmt == FS_FAT32) |
| fs->dirbase = LD_DWORD(&fs->win[BPB_RootClus]); /* Root directory start cluster */ |
| else |
| #endif |
| fs->dirbase = fs->fatbase + fatsize; /* Root directory start sector (lba) */ |
| fs->database = fs->fatbase + fatsize + fs->n_rootdir / 16; /* Data start sector (lba) */ |
| fs->fs_type = fmt; /* FAT sub-type */ |
| #if !_FS_READONLY |
| fs->free_clust = (CLUST)0xFFFFFFFF; |
| #if _USE_FSINFO |
| /* Load fsinfo sector if needed */ |
| if (fmt == FS_FAT32) { |
| fs->fsi_sector = bootsect + LD_WORD(&fs->win[BPB_FSInfo]); |
| if (disk_read(0, fs->win, fs->fsi_sector, 1) == RES_OK && |
| LD_WORD(&fs->win[BS_55AA]) == 0xAA55 && |
| LD_DWORD(&fs->win[FSI_LeadSig]) == 0x41615252 && |
| LD_DWORD(&fs->win[FSI_StrucSig]) == 0x61417272) { |
| fs->last_clust = LD_DWORD(&fs->win[FSI_Nxt_Free]); |
| fs->free_clust = LD_DWORD(&fs->win[FSI_Free_Count]); |
| } |
| } |
| #endif |
| #endif |
| fs->id = ++fsid; /* File system mount ID */ |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Check if the file/dir object is valid or not */ |
| /*-----------------------------------------------------------------------*/ |
| static |
| FRESULT validate ( /* FR_OK(0): The id is valid, !=0: Not valid */ |
| const FATFS *fs, /* Pointer to the file system object */ |
| WORD id /* id member of the target object to be checked */ |
| ) |
| { |
| if (!fs || fs->id != id) |
| return FR_INVALID_OBJECT; |
| if (disk_status(0) & STA_NOINIT) |
| return FR_NOT_READY; |
| return FR_OK; |
| } |
| /*-------------------------------------------------------------------------- |
| Public Functions |
| --------------------------------------------------------------------------*/ |
| /*-----------------------------------------------------------------------*/ |
| /* Mount/Unmount a Locical Drive */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_mount ( |
| BYTE drv, /* Logical drive number to be mounted/unmounted */ |
| FATFS *fs /* Pointer to new file system object (NULL for unmount)*/ |
| ) |
| { |
| FATFS *fsobj; |
| if (drv) return FR_INVALID_DRIVE; |
| fsobj = FatFs; |
| FatFs = fs; |
| if (fsobj) memset(fsobj, 0, sizeof(FATFS)); |
| if (fs) memset(fs, 0, sizeof(FATFS)); |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Open or Create a File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_open ( |
| FIL *fp, /* Pointer to the blank file object */ |
| const char *path, /* Pointer to the file name */ |
| BYTE mode /* Access mode and file open mode flags */ |
| ) |
| { |
| FRESULT res; |
| BYTE *dir; |
| DIR dirobj; |
| char fn[8+3+1]; |
| FATFS *fs = FatFs; |
| fp->fs = NULL; |
| #if !_FS_READONLY |
| mode &= (FA_READ|FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW); |
| res = auto_mount(&path, (BYTE)(mode & (FA_WRITE|FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW))); |
| #else |
| mode &= FA_READ; |
| res = auto_mount(&path, 0); |
| #endif |
| if (res != FR_OK) return res; |
| /* Trace the file path */ |
| res = trace_path(&dirobj, fn, path, &dir); /* Trace the file path */ |
| #if !_FS_READONLY |
| /* Create or Open a File */ |
| if (mode & (FA_CREATE_ALWAYS|FA_OPEN_ALWAYS|FA_CREATE_NEW)) { |
| CLUST rs; |
| DWORD dw; |
| if (res != FR_OK) { /* No file, create new */ |
| if (res != FR_NO_FILE) return res; |
| res = reserve_direntry(&dirobj, &dir); |
| if (res != FR_OK) return res; |
| memset(dir, 0, 32); /* Initialize the new entry */ |
| memcpy(&dir[DIR_Name], fn, 8+3); |
| dir[DIR_NTres] = fn[11]; |
| mode |= FA_CREATE_ALWAYS; |
| } else { /* Any object is already existing */ |
| if (mode & FA_CREATE_NEW) /* Cannot create new */ |
| return FR_EXIST; |
| if (dir == NULL || (dir[DIR_Attr] & (AM_RDO|AM_DIR))) /* Cannot overwrite (R/O or DIR) */ |
| return FR_DENIED; |
| if (mode & FA_CREATE_ALWAYS) { /* Resize it to zero */ |
| #if _FAT32 |
| rs = ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | LD_WORD(&dir[DIR_FstClusLO]); |
| ST_WORD(&dir[DIR_FstClusHI], 0); |
| #else |
| rs = LD_WORD(&dir[DIR_FstClusLO]); |
| #endif |
| ST_WORD(&dir[DIR_FstClusLO], 0); /* cluster = 0 */ |
| ST_DWORD(&dir[DIR_FileSize], 0); /* size = 0 */ |
| fs->winflag = 1; |
| dw = fs->winsect; /* Remove the cluster chain */ |
| if (!remove_chain(rs) || !move_window(dw)) |
| return FR_RW_ERROR; |
| fs->last_clust = rs - 1; /* Reuse the cluster hole */ |
| } |
| } |
| if (mode & FA_CREATE_ALWAYS) { |
| dir[DIR_Attr] = AM_ARC; /* New attribute */ |
| dw = get_fattime(); |
| ST_DWORD(&dir[DIR_WrtTime], dw); /* Updated time */ |
| ST_DWORD(&dir[DIR_CrtTime], dw); /* Created time */ |
| fs->winflag = 1; |
| } |
| } |
| /* Open a File */ |
| else { |
| #endif /* !_FS_READONLY */ |
| if (res != FR_OK) return res; /* Trace failed */ |
| if (dir == NULL || (dir[DIR_Attr] & AM_DIR)) /* It is a directory */ |
| return FR_NO_FILE; |
| #if !_FS_READONLY |
| if ((mode & FA_WRITE) && (dir[DIR_Attr] & AM_RDO)) /* R/O violation */ |
| return FR_DENIED; |
| } |
| fp->dir_sect = fs->winsect; /* Pointer to the directory entry */ |
| fp->dir_ptr = dir; |
| #endif |
| fp->flag = mode; /* File access mode */ |
| fp->org_clust = /* File start cluster */ |
| #if _FAT32 |
| ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | |
| #endif |
| LD_WORD(&dir[DIR_FstClusLO]); |
| fp->fsize = LD_DWORD(&dir[DIR_FileSize]); /* File size */ |
| fp->fptr = 0; /* File ptr */ |
| fp->sect_clust = 1; /* Sector counter */ |
| fp->fs = fs; fp->id = fs->id; /* Owner file system object of the file */ |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Read File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_read ( |
| FIL *fp, /* Pointer to the file object */ |
| void *buff, /* Pointer to data buffer */ |
| WORD btr, /* Number of bytes to read */ |
| WORD *br /* Pointer to number of bytes read */ |
| ) |
| { |
| DWORD sect, remain; |
| WORD rcnt; |
| CLUST clust; |
| BYTE cc, *rbuff = buff; |
| FRESULT res; |
| FATFS *fs = fp->fs; |
| *br = 0; |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| if (res) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_READ)) return FR_DENIED; /* Check access mode */ |
| remain = fp->fsize - fp->fptr; |
| if (btr > remain) btr = (WORD)remain; /* Truncate read count by number of bytes left */ |
| for ( ; btr; /* Repeat until all data transferred */ |
| rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) { |
| if ((fp->fptr % 512) == 0) { /* On the sector boundary */ |
| if (--fp->sect_clust) { /* Decrement left sector counter */ |
| sect = fp->curr_sect + 1; /* Get current sector */ |
| } else { /* On the cluster boundary, get next cluster */ |
| clust = (fp->fptr == 0) ? |
| fp->org_clust : get_cluster(fp->curr_clust); |
| if (clust < 2 || clust >= fs->max_clust) |
| goto fr_error; |
| fp->curr_clust = clust; /* Current cluster */ |
| sect = clust2sect(clust); /* Get current sector */ |
| fp->sect_clust = fs->sects_clust; /* Re-initialize the left sector counter */ |
| } |
| fp->curr_sect = sect; /* Update current sector */ |
| cc = btr / 512; /* When left bytes >= 512, */ |
| if (cc) { /* Read maximum contiguous sectors directly */ |
| if (cc > fp->sect_clust) cc = fp->sect_clust; |
| if (disk_read(0, rbuff, sect, cc) != RES_OK) |
| goto fr_error; |
| fp->sect_clust -= cc - 1; |
| fp->curr_sect += cc - 1; |
| rcnt = cc * 512; continue; |
| } |
| } |
| if (!move_window(fp->curr_sect)) goto fr_error; /* Move sector window */ |
| rcnt = 512 - (WORD)(fp->fptr % 512); /* Copy fractional bytes from sector window */ |
| if (rcnt > btr) rcnt = btr; |
| memcpy(rbuff, &fs->win[(WORD)fp->fptr % 512], rcnt); |
| } |
| return FR_OK; |
| fr_error: /* Abort this function due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| return FR_RW_ERROR; |
| } |
| #if !_FS_READONLY |
| /*-----------------------------------------------------------------------*/ |
| /* Write File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_write ( |
| FIL *fp, /* Pointer to the file object */ |
| const void *buff, /* Pointer to the data to be written */ |
| WORD btw, /* Number of bytes to write */ |
| WORD *bw /* Pointer to number of bytes written */ |
| ) |
| { |
| DWORD sect; |
| WORD wcnt; |
| CLUST clust; |
| BYTE cc; |
| FRESULT res; |
| const BYTE *wbuff = buff; |
| FATFS *fs = fp->fs; |
| *bw = 0; |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| if (res) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; /* Check error flag */ |
| if (!(fp->flag & FA_WRITE)) return FR_DENIED; /* Check access mode */ |
| if (fp->fsize + btw < fp->fsize) return FR_OK; /* File size cannot reach 4GB */ |
| for ( ; btw; /* Repeat until all data transferred */ |
| wbuff += wcnt, fp->fptr += wcnt, *bw += wcnt, btw -= wcnt) { |
| if ((fp->fptr % 512) == 0) { /* On the sector boundary */ |
| if (--(fp->sect_clust)) { /* Decrement left sector counter */ |
| sect = fp->curr_sect + 1; /* Get current sector */ |
| } else { /* On the cluster boundary, get next cluster */ |
| if (fp->fptr == 0) { /* Is top of the file */ |
| clust = fp->org_clust; |
| if (clust == 0) /* No cluster is created yet */ |
| fp->org_clust = clust = create_chain(0); /* Create a new cluster chain */ |
| } else { /* Middle or end of file */ |
| clust = create_chain(fp->curr_clust); /* Trace or streach cluster chain */ |
| } |
| if (clust == 0) break; /* Disk full */ |
| if (clust == 1 || clust >= fs->max_clust) goto fw_error; |
| fp->curr_clust = clust; /* Current cluster */ |
| sect = clust2sect(clust); /* Get current sector */ |
| fp->sect_clust = fs->sects_clust; /* Re-initialize the left sector counter */ |
| } |
| fp->curr_sect = sect; /* Update current sector */ |
| cc = btw / 512; /* When left bytes >= 512, */ |
| if (cc) { /* Write maximum contiguous sectors directly */ |
| if (cc > fp->sect_clust) cc = fp->sect_clust; |
| if (disk_write(0, wbuff, sect, cc) != RES_OK) |
| goto fw_error; |
| fp->sect_clust -= cc - 1; |
| fp->curr_sect += cc - 1; |
| wcnt = cc * 512; continue; |
| } |
| if (fp->fptr >= fp->fsize) { /* Flush R/W window if needed */ |
| if (!move_window(0)) goto fw_error; |
| fs->winsect = fp->curr_sect; |
| } |
| } |
| if (!move_window(fp->curr_sect)) /* Move sector window */ |
| goto fw_error; |
| wcnt = 512 - (WORD)(fp->fptr % 512); /* Copy fractional bytes bytes to sector window */ |
| if (wcnt > btw) wcnt = btw; |
| memcpy(&fs->win[(WORD)fp->fptr % 512], wbuff, wcnt); |
| fs->winflag = 1; |
| } |
| if (fp->fptr > fp->fsize) fp->fsize = fp->fptr; /* Update file size if needed */ |
| fp->flag |= FA__WRITTEN; /* Set file changed flag */ |
| return FR_OK; |
| fw_error: /* Abort this function due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| return FR_RW_ERROR; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Synchronize between File and Disk */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_sync ( |
| FIL *fp /* Pointer to the file object */ |
| ) |
| { |
| DWORD tim; |
| BYTE *dir; |
| FRESULT res; |
| FATFS *fs = fp->fs; |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| if (res == FR_OK) { |
| if (fp->flag & FA__WRITTEN) { /* Has the file been written? */ |
| /* Update the directory entry */ |
| if (!move_window(fp->dir_sect)) |
| return FR_RW_ERROR; |
| dir = fp->dir_ptr; |
| dir[DIR_Attr] |= AM_ARC; /* Set archive bit */ |
| ST_DWORD(&dir[DIR_FileSize], fp->fsize); /* Update file size */ |
| ST_WORD(&dir[DIR_FstClusLO], fp->org_clust); /* Update start cluster */ |
| #if _FAT32 |
| ST_WORD(&dir[DIR_FstClusHI], fp->org_clust >> 16); |
| #endif |
| tim = get_fattime(); /* Updated time */ |
| ST_DWORD(&dir[DIR_WrtTime], tim); |
| fp->flag &= ~FA__WRITTEN; |
| res = sync(); |
| } |
| } |
| return res; |
| } |
| #endif /* !_FS_READONLY */ |
| /*-----------------------------------------------------------------------*/ |
| /* Close File */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_close ( |
| FIL *fp /* Pointer to the file object to be closed */ |
| ) |
| { |
| FRESULT res; |
| #if !_FS_READONLY |
| res = f_sync(fp); |
| #else |
| res = validate(fp->fs, fp->id); |
| #endif |
| if (res == FR_OK) |
| fp->fs = NULL; |
| return res; |
| } |
| #if _FS_MINIMIZE <= 2 |
| /*-----------------------------------------------------------------------*/ |
| /* Seek File Pointer */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_lseek ( |
| FIL *fp, /* Pointer to the file object */ |
| DWORD ofs /* File pointer from top of file */ |
| ) |
| { |
| CLUST clust; |
| DWORD csize; |
| BYTE csect; |
| FRESULT res; |
| FATFS *fs = fp->fs; |
| res = validate(fs, fp->id); /* Check validity of the object */ |
| if (res) return res; |
| if (fp->flag & FA__ERROR) return FR_RW_ERROR; |
| #if !_FS_READONLY |
| if (ofs > fp->fsize && !(fp->flag & FA_WRITE)) |
| #else |
| if (ofs > fp->fsize) |
| #endif |
| ofs = fp->fsize; |
| fp->fptr = 0; fp->sect_clust = 1; /* Set file R/W pointer to top of the file */ |
| /* Move file R/W pointer if needed */ |
| if (ofs) { |
| clust = fp->org_clust; /* Get start cluster */ |
| #if !_FS_READONLY |
| if (!clust) { /* If the file does not have a cluster chain, create new cluster chain */ |
| clust = create_chain(0); |
| if (clust == 1) goto fk_error; |
| fp->org_clust = clust; |
| } |
| #endif |
| if (clust) { /* If the file has a cluster chain, it can be followed */ |
| csize = (DWORD)fs->sects_clust * 512; /* Cluster size in unit of byte */ |
| for (;;) { /* Loop to skip leading clusters */ |
| fp->curr_clust = clust; /* Update current cluster */ |
| if (ofs <= csize) break; |
| #if !_FS_READONLY |
| if (fp->flag & FA_WRITE) /* Check if in write mode or not */ |
| clust = create_chain(clust); /* Force streached if in write mode */ |
| else |
| #endif |
| clust = get_cluster(clust); /* Only follow cluster chain if not in write mode */ |
| if (clust == 0) { /* Stop if could not follow the cluster chain */ |
| ofs = csize; break; |
| } |
| if (clust == 1 || clust >= fs->max_clust) goto fk_error; |
| fp->fptr += csize; /* Update R/W pointer */ |
| ofs -= csize; |
| } |
| csect = (BYTE)((ofs - 1) / 512); /* Sector offset in the cluster */ |
| fp->curr_sect = clust2sect(clust) + csect; /* Current sector */ |
| fp->sect_clust = fs->sects_clust - csect; /* Left sector counter in the cluster */ |
| fp->fptr += ofs; /* Update file R/W pointer */ |
| } |
| } |
| #if !_FS_READONLY |
| if ((fp->flag & FA_WRITE) && fp->fptr > fp->fsize) { /* Set updated flag if in write mode */ |
| fp->fsize = fp->fptr; |
| fp->flag |= FA__WRITTEN; |
| } |
| #endif |
| return FR_OK; |
| fk_error: /* Abort this function due to an unrecoverable error */ |
| fp->flag |= FA__ERROR; |
| return FR_RW_ERROR; |
| } |
| #if _FS_MINIMIZE <= 1 |
| /*-----------------------------------------------------------------------*/ |
| /* Open a directroy */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_opendir ( |
| DIR *dirobj, /* Pointer to directory object to create */ |
| const char *path /* Pointer to the directory path */ |
| ) |
| { |
| BYTE *dir; |
| char fn[8+3+1]; |
| FRESULT res; |
| FATFS *fs = FatFs; |
| res = auto_mount(&path, 0); |
| if (res != FR_OK) return res; |
| res = trace_path(dirobj, fn, path, &dir); /* Trace the directory path */ |
| if (res == FR_OK) { /* Trace completed */ |
| if (dir != NULL) { /* It is not the root dir */ |
| if (dir[DIR_Attr] & AM_DIR) { /* The entry is a directory */ |
| dirobj->clust = |
| #if _FAT32 |
| ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | |
| #endif |
| LD_WORD(&dir[DIR_FstClusLO]); |
| dirobj->sect = clust2sect(dirobj->clust); |
| dirobj->index = 2; |
| } else { /* The entry is not a directory */ |
| res = FR_NO_FILE; |
| } |
| } |
| dirobj->id = fs->id; |
| } |
| return res; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Read Directory Entry in Sequense */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_readdir ( |
| DIR *dirobj, /* Pointer to the directory object */ |
| FILINFO *finfo /* Pointer to file information to return */ |
| ) |
| { |
| BYTE *dir, c; |
| FRESULT res; |
| FATFS *fs = dirobj->fs; |
| res = validate(fs, dirobj->id); /* Check validity of the object */ |
| if (res) return res; |
| finfo->fname[0] = 0; |
| while (dirobj->sect) { |
| if (!move_window(dirobj->sect)) |
| return FR_RW_ERROR; |
| dir = &fs->win[(dirobj->index & 15) * 32]; /* pointer to the directory entry */ |
| c = dir[DIR_Name]; |
| if (c == 0) break; /* Has it reached to end of dir? */ |
| if (c != 0xE5 && !(dir[DIR_Attr] & AM_VOL)) /* Is it a valid entry? */ |
| get_fileinfo(finfo, dir); |
| if (!next_dir_entry(dirobj)) dirobj->sect = 0; /* Next entry */ |
| if (finfo->fname[0]) break; /* Found valid entry */ |
| } |
| return FR_OK; |
| } |
| #if _FS_MINIMIZE == 0 |
| /*-----------------------------------------------------------------------*/ |
| /* Get File Status */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_stat ( |
| const char *path, /* Pointer to the file path */ |
| FILINFO *finfo /* Pointer to file information to return */ |
| ) |
| { |
| BYTE *dir; |
| char fn[8+3+1]; |
| FRESULT res; |
| DIR dirobj; |
| res = auto_mount(&path, 0); |
| if (res != FR_OK) return res; |
| res = trace_path(&dirobj, fn, path, &dir); /* Trace the file path */ |
| if (res == FR_OK) { /* Trace completed */ |
| if (dir) /* Found an object */ |
| get_fileinfo(finfo, dir); |
| else /* It is root dir */ |
| res = FR_INVALID_NAME; |
| } |
| return res; |
| } |
| #if !_FS_READONLY |
| /*-----------------------------------------------------------------------*/ |
| /* Get Number of Free Clusters */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_getfree ( |
| const char *drv, /* Logical drive number */ |
| DWORD *nclust, /* Pointer to the double word to return number of free clusters */ |
| FATFS **fatfs /* Pointer to pointer to the file system object to return */ |
| ) |
| { |
| DWORD n, sect; |
| CLUST clust; |
| BYTE fat, f, *p; |
| FRESULT res; |
| FATFS *fs; |
| /* Get drive number */ |
| res = auto_mount(&drv, 0); |
| if (res != FR_OK) return res; |
| *fatfs = fs = FatFs; |
| /* If number of free cluster is valid, return it without cluster scan. */ |
| if (fs->free_clust <= fs->max_clust - 2) { |
| *nclust = fs->free_clust; |
| return FR_OK; |
| } |
| /* Count number of free clusters */ |
| fat = fs->fs_type; |
| n = 0; |
| if (fat == FS_FAT12) { |
| clust = 2; |
| do { |
| if ((WORD)get_cluster(clust) == 0) n++; |
| } while (++clust < fs->max_clust); |
| } else { |
| clust = fs->max_clust; |
| sect = fs->fatbase; |
| f = 0; p = 0; |
| do { |
| if (!f) { |
| if (!move_window(sect++)) return FR_RW_ERROR; |
| p = fs->win; |
| } |
| if (!_FAT32 || fat == FS_FAT16) { |
| if (LD_WORD(p) == 0) n++; |
| p += 2; f += 1; |
| } else { |
| if (LD_DWORD(p) == 0) n++; |
| p += 4; f += 2; |
| } |
| } while (--clust); |
| } |
| fs->free_clust = n; |
| #if _USE_FSINFO |
| if (fat == FS_FAT32) fs->fsi_flag = 1; |
| #endif |
| *nclust = n; |
| return FR_OK; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Delete a File or a Directory */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_unlink ( |
| const char *path /* Pointer to the file or directory path */ |
| ) |
| { |
| BYTE *dir, *sdir; |
| DWORD dsect; |
| char fn[8+3+1]; |
| CLUST dclust; |
| FRESULT res; |
| DIR dirobj; |
| FATFS *fs = FatFs; |
| res = auto_mount(&path, 1); |
| if (res != FR_OK) return res; |
| res = trace_path(&dirobj, fn, path, &dir); /* Trace the file path */ |
| if (res != FR_OK) return res; /* Trace failed */ |
| if (dir == NULL) return FR_INVALID_NAME; /* It is the root directory */ |
| if (dir[DIR_Attr] & AM_RDO) return FR_DENIED; /* It is a R/O object */ |
| dsect = fs->winsect; |
| dclust = |
| #if _FAT32 |
| ((DWORD)LD_WORD(&dir[DIR_FstClusHI]) << 16) | |
| #endif |
| LD_WORD(&dir[DIR_FstClusLO]); |
| if (dir[DIR_Attr] & AM_DIR) { /* It is a sub-directory */ |
| dirobj.clust = dclust; /* Check if the sub-dir is empty or not */ |
| dirobj.sect = clust2sect(dclust); |
| dirobj.index = 2; |
| do { |
| if (!move_window(dirobj.sect)) return FR_RW_ERROR; |
| sdir = &fs->win[(dirobj.index & 15) * 32]; |
| if (sdir[DIR_Name] == 0) break; |
| if (sdir[DIR_Name] != 0xE5 && !(sdir[DIR_Attr] & AM_VOL)) |
| return FR_DENIED; /* The directory is not empty */ |
| } while (next_dir_entry(&dirobj)); |
| } |
| if (!move_window(dsect)) return FR_RW_ERROR; /* Mark the directory entry 'deleted' */ |
| dir[DIR_Name] = 0xE5; |
| fs->winflag = 1; |
| if (!remove_chain(dclust)) return FR_RW_ERROR; /* Remove the cluster chain */ |
| return sync(); |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Create a Directory */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_mkdir ( |
| const char *path /* Pointer to the directory path */ |
| ) |
| { |
| BYTE *dir, *fw, n; |
| char fn[8+3+1]; |
| DWORD sect, dsect, tim; |
| CLUST dclust, pclust; |
| FRESULT res; |
| DIR dirobj; |
| FATFS *fs = FatFs; |
| res = auto_mount(&path, 1); |
| if (res != FR_OK) return res; |
| res = trace_path(&dirobj, fn, path, &dir); /* Trace the file path */ |
| if (res == FR_OK) return FR_EXIST; /* Any file or directory is already existing */ |
| if (res != FR_NO_FILE) return res; |
| res = reserve_direntry(&dirobj, &dir); /* Reserve a directory entry */ |
| if (res != FR_OK) return res; |
| sect = fs->winsect; |
| dclust = create_chain(0); /* Allocate a cluster for new directory table */ |
| if (dclust == 1) return FR_RW_ERROR; |
| dsect = clust2sect(dclust); |
| if (!dsect) return FR_DENIED; |
| if (!move_window(dsect)) return FR_RW_ERROR; |
| fw = fs->win; |
| memset(fw, 0, 512); /* Clear the directory table */ |
| for (n = 1; n < fs->sects_clust; n++) { |
| if (disk_write(0, fw, ++dsect, 1) != RES_OK) |
| return FR_RW_ERROR; |
| } |
| memset(&fw[DIR_Name], ' ', 8+3); /* Create "." entry */ |
| fw[DIR_Name] = '.'; |
| fw[DIR_Attr] = AM_DIR; |
| tim = get_fattime(); |
| ST_DWORD(&fw[DIR_WrtTime], tim); |
| memcpy(&fw[32], &fw[0], 32); fw[33] = '.'; /* Create ".." entry */ |
| pclust = dirobj.sclust; |
| #if _FAT32 |
| ST_WORD(&fw[ DIR_FstClusHI], dclust >> 16); |
| if (fs->fs_type == FS_FAT32 && pclust == fs->dirbase) pclust = 0; |
| ST_WORD(&fw[32+DIR_FstClusHI], pclust >> 16); |
| #endif |
| ST_WORD(&fw[ DIR_FstClusLO], dclust); |
| ST_WORD(&fw[32+DIR_FstClusLO], pclust); |
| fs->winflag = 1; |
| if (!move_window(sect)) return FR_RW_ERROR; |
| memset(&dir[0], 0, 32); /* Clean-up the new entry */ |
| memcpy(&dir[DIR_Name], fn, 8+3); /* Name */ |
| dir[DIR_NTres] = fn[11]; |
| dir[DIR_Attr] = AM_DIR; /* Attribute */ |
| ST_DWORD(&dir[DIR_WrtTime], tim); /* Crated time */ |
| ST_WORD(&dir[DIR_FstClusLO], dclust); /* Table start cluster */ |
| #if _FAT32 |
| ST_WORD(&dir[DIR_FstClusHI], dclust >> 16); |
| #endif |
| return sync(); |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Change File Attribute */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_chmod ( |
| const char *path, /* Pointer to the file path */ |
| BYTE value, /* Attribute bits */ |
| BYTE mask /* Attribute mask to change */ |
| ) |
| { |
| FRESULT res; |
| BYTE *dir; |
| DIR dirobj; |
| char fn[8+3+1]; |
| res = auto_mount(&path, 1); |
| if (res == FR_OK) { |
| res = trace_path(&dirobj, fn, path, &dir); /* Trace the file path */ |
| if (res == FR_OK) { /* Trace completed */ |
| if (dir == NULL) { |
| res = FR_INVALID_NAME; |
| } else { |
| mask &= AM_RDO|AM_HID|AM_SYS|AM_ARC; /* Valid attribute mask */ |
| dir[DIR_Attr] = (value & mask) | (dir[DIR_Attr] & (BYTE)~mask); /* Apply attribute change */ |
| res = sync(); |
| } |
| } |
| } |
| return res; |
| } |
| /*-----------------------------------------------------------------------*/ |
| /* Rename File/Directory */ |
| /*-----------------------------------------------------------------------*/ |
| FRESULT f_rename ( |
| const char *path_old, /* Pointer to the old name */ |
| const char *path_new /* Pointer to the new name */ |
| ) |
| { |
| FRESULT res; |
| DWORD sect_old; |
| BYTE *dir_old, *dir_new, direntry[32-11]; |
| DIR dirobj; |
| char fn[8+3+1]; |
| FATFS *fs = FatFs; |
| res = auto_mount(&path_old, 1); |
| if (res != FR_OK) return res; |
| res = trace_path(&dirobj, fn, path_old, &dir_old); /* Check old object */ |
| if (res != FR_OK) return res; /* The old object is not found */ |
| if (!dir_old) return FR_NO_FILE; |
| sect_old = fs->winsect; /* Save the object information */ |
| memcpy(direntry, &dir_old[11], 32-11); |
| res = trace_path(&dirobj, fn, path_new, &dir_new); /* Check new object */ |
| if (res == FR_OK) return FR_EXIST; /* The new object name is already existing */ |
| if (res != FR_NO_FILE) return res; /* Is there no old name? */ |
| res = reserve_direntry(&dirobj, &dir_new); /* Reserve a directory entry */ |
| if (res != FR_OK) return res; |
| memcpy(&dir_new[DIR_Attr], direntry, 32-11); /* Create new entry */ |
| memcpy(&dir_new[DIR_Name], fn, 8+3); |
| dir_new[DIR_NTres] = fn[11]; |
| fs->winflag = 1; |
| if (!move_window(sect_old)) return FR_RW_ERROR; /* Remove old entry */ |
| dir_old[DIR_Name] = 0xE5; |
| return sync(); |
| } |
| #endif /* !_FS_READONLY */ |
| #endif /* _FS_MINIMIZE == 0 */ |
| #endif /* _FS_MINIMIZE <= 1 */ |
| #endif /* _FS_MINIMIZE <= 2 */ |
| /Designs/GPSRL03A/tff.h |
|---|
| 0,0 → 1,289 |
| /*--------------------------------------------------------------------------/ |
| / Tiny-FatFs - FAT file system module include file R0.04b (C)ChaN, 2007 |
| /---------------------------------------------------------------------------/ |
| / FatFs module is an experimenal project to implement FAT file system to |
| / cheap microcontrollers. This is a free software and is opened for education, |
| / research and development under license policy of following trems. |
| / |
| / Copyright (C) 2007, ChaN, all right reserved. |
| / |
| / * The FatFs module is a free software and there is no warranty. |
| / * You can use, modify and/or redistribute it for personal, non-profit or |
| / profit use without any restriction under your responsibility. |
| / * Redistributions of source code must retain the above copyright notice. |
| / |
| /---------------------------------------------------------------------------*/ |
| #ifndef _FATFS |
| #define _MCU_ENDIAN 1 |
| /* The _MCU_ENDIAN defines which access method is used to the FAT structure. |
| / 1: Enable word access. |
| / 2: Disable word access and use byte-by-byte access instead. |
| / When the architectural byte order of the MCU is big-endian and/or address |
| / miss-aligned access is prohibited, the _MCU_ENDIAN must be set to 2. |
| / If it is not the case, it can be set to 1 for good code efficiency. */ |
| #define _FS_READONLY 0 |
| /* Setting _FS_READONLY to 1 defines read only configuration. This removes |
| / writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename |
| / and useless f_getfree. */ |
| #define _FS_MINIMIZE 2 |
| /* The _FS_MINIMIZE option defines minimization level to remove some functions. |
| / 0: Full function. |
| / 1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod and f_rename are removed. |
| / 2: f_opendir and f_readdir are removed in addition to level 1. |
| / 3: f_lseek is removed in addition to level 2. */ |
| #define _FAT32 0 |
| /* To support FAT32 in addition of FAT12/16, set _FAT32 to 1. */ |
| #define _USE_FSINFO 0 |
| /* To support FSInfo on FAT32 volume, set _USE_FSINFO to 1. */ |
| #define _USE_SJIS 0 |
| /* When _USE_SJIS is set to 1, Shift-JIS code transparency is enabled, otherwise |
| / only US-ASCII(7bit) code can be accepted as file/directory name. */ |
| #define _USE_NTFLAG 1 |
| /* When _USE_NTFLAG is set to 1, upper/lower case of the file name is preserved. */ |
| #include "integer.h" |
| /* Type definition for cluster number */ |
| #if _FAT32 |
| typedef DWORD CLUST; |
| #else |
| typedef WORD CLUST; |
| #undef _USE_FSINFO |
| #define _USE_FSINFO 0 |
| #endif |
| /* File system object structure */ |
| typedef struct _FATFS { |
| WORD id; /* File system mount ID */ |
| WORD n_rootdir; /* Number of root directory entries */ |
| DWORD winsect; /* Current sector appearing in the win[] */ |
| DWORD fatbase; /* FAT start sector */ |
| DWORD dirbase; /* Root directory start sector */ |
| DWORD database; /* Data start sector */ |
| CLUST sects_fat; /* Sectors per fat */ |
| CLUST max_clust; /* Maximum cluster# + 1 */ |
| #if !_FS_READONLY |
| CLUST last_clust; /* Last allocated cluster */ |
| CLUST free_clust; /* Number of free clusters */ |
| #if _USE_FSINFO |
| DWORD fsi_sector; /* fsinfo sector */ |
| BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */ |
| BYTE pad1; |
| #endif |
| #endif |
| BYTE fs_type; /* FAT sub type */ |
| BYTE sects_clust; /* Sectors per cluster */ |
| BYTE n_fats; /* Number of FAT copies */ |
| BYTE winflag; /* win[] dirty flag (1:must be written back) */ |
| BYTE win[512]; /* Disk access window for Directory/FAT/File */ |
| } FATFS; |
| /* Directory object structure */ |
| typedef struct _DIR { |
| WORD id; /* Owner file system mount ID */ |
| WORD index; /* Current index */ |
| FATFS* fs; /* Pointer to the owner file system object */ |
| CLUST sclust; /* Start cluster */ |
| CLUST clust; /* Current cluster */ |
| DWORD sect; /* Current sector */ |
| } DIR; |
| /* File object structure */ |
| typedef struct _FIL { |
| WORD id; /* Owner file system mount ID */ |
| BYTE flag; /* File status flags */ |
| BYTE sect_clust; /* Left sectors in cluster */ |
| FATFS* fs; /* Pointer to owner file system */ |
| DWORD fptr; /* File R/W pointer */ |
| DWORD fsize; /* File size */ |
| CLUST org_clust; /* File start cluster */ |
| CLUST curr_clust; /* Current cluster */ |
| DWORD curr_sect; /* Current sector */ |
| #if !_FS_READONLY |
| DWORD dir_sect; /* Sector containing the directory entry */ |
| BYTE* dir_ptr; /* Ponter to the directory entry in the window */ |
| #endif |
| } FIL; |
| /* File status structure */ |
| typedef struct _FILINFO { |
| DWORD fsize; /* Size */ |
| WORD fdate; /* Date */ |
| WORD ftime; /* Time */ |
| BYTE fattrib; /* Attribute */ |
| char fname[8+1+3+1]; /* Name (8.3 format) */ |
| } FILINFO; |
| /* File function return code (FRESULT) */ |
| typedef enum { |
| FR_OK = 0, /* 0 */ |
| FR_NOT_READY, /* 1 */ |
| FR_NO_FILE, /* 2 */ |
| FR_NO_PATH, /* 3 */ |
| FR_INVALID_NAME, /* 4 */ |
| FR_INVALID_DRIVE, /* 5 */ |
| FR_DENIED, /* 6 */ |
| FR_EXIST, /* 7 */ |
| FR_RW_ERROR, /* 8 */ |
| FR_WRITE_PROTECTED, /* 9 */ |
| FR_NOT_ENABLED, /* 10 */ |
| FR_NO_FILESYSTEM, /* 11 */ |
| FR_INVALID_OBJECT /* 12 */ |
| } FRESULT; |
| /*-----------------------------------------------------*/ |
| /* FatFs module application interface */ |
| FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */ |
| FRESULT f_open (FIL*, const char*, BYTE); /* Open or create a file */ |
| FRESULT f_read (FIL*, void*, WORD, WORD*); /* Read data from a file */ |
| FRESULT f_write (FIL*, const void*, WORD, WORD*); /* Write data to a file */ |
| FRESULT f_lseek (FIL*, DWORD); /* Move file pointer of a file object */ |
| FRESULT f_close (FIL*); /* Close an open file object */ |
| FRESULT f_opendir (DIR*, const char*); /* Open an existing directory */ |
| FRESULT f_readdir (DIR*, FILINFO*); /* Read a directory item */ |
| FRESULT f_stat (const char*, FILINFO*); /* Get file status */ |
| FRESULT f_getfree (const char*, DWORD*, FATFS**); /* Get number of free clusters on the drive */ |
| FRESULT f_sync (FIL*); /* Flush cached data of a writing file */ |
| FRESULT f_unlink (const char*); /* Delete an existing file or directory */ |
| FRESULT f_mkdir (const char*); /* Create a new directory */ |
| FRESULT f_chmod (const char*, BYTE, BYTE); /* Change file/dir attriburte */ |
| FRESULT f_rename (const char*, const char*); /* Rename/Move a file or directory */ |
| /* User defined function to give a current time to fatfs module */ |
| DWORD get_fattime (void); /* 31-25: Year(0-127 +1980), 24-21: Month(1-12), 20-16: Day(1-31) */ |
| /* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */ |
| /* File access control and file status flags (FIL.flag) */ |
| #define FA_READ 0x01 |
| #define FA_OPEN_EXISTING 0x00 |
| #if !_FS_READONLY |
| #define FA_WRITE 0x02 |
| #define FA_CREATE_NEW 0x04 |
| #define FA_CREATE_ALWAYS 0x08 |
| #define FA_OPEN_ALWAYS 0x10 |
| #define FA__WRITTEN 0x20 |
| #endif |
| #define FA__ERROR 0x80 |
| /* FAT sub type (FATFS.fs_type) */ |
| #define FS_FAT12 1 |
| #define FS_FAT16 2 |
| #define FS_FAT32 3 |
| /* File attribute bits for directory entry */ |
| #define AM_RDO 0x01 /* Read only */ |
| #define AM_HID 0x02 /* Hidden */ |
| #define AM_SYS 0x04 /* System */ |
| #define AM_VOL 0x08 /* Volume label */ |
| #define AM_LFN 0x0F /* LFN entry */ |
| #define AM_DIR 0x10 /* Directory */ |
| #define AM_ARC 0x20 /* Archive */ |
| /* Offset of FAT structure members */ |
| #define BS_jmpBoot 0 |
| #define BS_OEMName 3 |
| #define BPB_BytsPerSec 11 |
| #define BPB_SecPerClus 13 |
| #define BPB_RsvdSecCnt 14 |
| #define BPB_NumFATs 16 |
| #define BPB_RootEntCnt 17 |
| #define BPB_TotSec16 19 |
| #define BPB_Media 21 |
| #define BPB_FATSz16 22 |
| #define BPB_SecPerTrk 24 |
| #define BPB_NumHeads 26 |
| #define BPB_HiddSec 28 |
| #define BPB_TotSec32 32 |
| #define BS_55AA 510 |
| #define BS_DrvNum 36 |
| #define BS_BootSig 38 |
| #define BS_VolID 39 |
| #define BS_VolLab 43 |
| #define BS_FilSysType 54 |
| #define BPB_FATSz32 36 |
| #define BPB_ExtFlags 40 |
| #define BPB_FSVer 42 |
| #define BPB_RootClus 44 |
| #define BPB_FSInfo 48 |
| #define BPB_BkBootSec 50 |
| #define BS_DrvNum32 64 |
| #define BS_BootSig32 66 |
| #define BS_VolID32 67 |
| #define BS_VolLab32 71 |
| #define BS_FilSysType32 82 |
| #define FSI_LeadSig 0 |
| #define FSI_StrucSig 484 |
| #define FSI_Free_Count 488 |
| #define FSI_Nxt_Free 492 |
| #define MBR_Table 446 |
| #define DIR_Name 0 |
| #define DIR_Attr 11 |
| #define DIR_NTres 12 |
| #define DIR_CrtTime 14 |
| #define DIR_CrtDate 16 |
| #define DIR_FstClusHI 20 |
| #define DIR_WrtTime 22 |
| #define DIR_WrtDate 24 |
| #define DIR_FstClusLO 26 |
| #define DIR_FileSize 28 |
| /* Multi-byte word access macros */ |
| #if _MCU_ENDIAN == 1 /* Use word access */ |
| #define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr)) |
| #define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr)) |
| #define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val) |
| #define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val) |
| #else |
| #if _MCU_ENDIAN == 2 /* Use byte-by-byte access */ |
| #define LD_WORD(ptr) (WORD)(((WORD)*(BYTE*)((ptr)+1)<<8)|(WORD)*(BYTE*)(ptr)) |
| #define LD_DWORD(ptr) (DWORD)(((DWORD)*(BYTE*)((ptr)+3)<<24)|((DWORD)*(BYTE*)((ptr)+2)<<16)|((WORD)*(BYTE*)((ptr)+1)<<8)|*(BYTE*)(ptr)) |
| #define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8) |
| #define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24) |
| #else |
| #error Do not forget to set _MCU_ENDIAN properly! |
| #endif |
| #endif |
| #define _FATFS |
| #endif /* _FATFS */ |
| /Designs/GPSRL03A/tt.ini |
|---|
| 0,0 → 1,0 |
| bps=115200 |