Rev 410 | Blame | Compare with Previous | Last modification | View Log | Download
GAS LISTING /tmp/ccX0nxLF.s page 11 .file "UartInterface.c"2 __SREG__ = 0x3f3 __SP_H__ = 0x3e4 __SP_L__ = 0x3d5 __tmp_reg__ = 06 __zero_reg__ = 17 .global __do_copy_data8 .global __do_clear_bss9 .stabs "/home/kaklik/projects/programy/C/avr/AVRcam/",100,0,2,.Ltext010 .stabs "UartInterface.c",100,0,2,.Ltext011 .text12 .Ltext0:13 .stabs "gcc2_compiled.",60,0,0,014 .stabs "int:t(0,1)=r(0,1);-32768;32767;",128,0,0,015 .stabs "char:t(0,2)=@s8;r(0,2);0;255;",128,0,0,016 .stabs "long int:t(0,3)=@s32;r(0,3);020000000000;017777777777;",128,0,0,017 .stabs "unsigned int:t(0,4)=r(0,4);0;0177777;",128,0,0,018 .stabs "long unsigned int:t(0,5)=@s32;r(0,5);0;037777777777;",128,0,0,019 .stabs "long long int:t(0,6)=@s64;r(0,6);01000000000000000000000;0777777777777777777777;",128,0,0,20 .stabs "long long unsigned int:t(0,7)=@s64;r(0,7);0;01777777777777777777777;",128,0,0,021 .stabs "short int:t(0,8)=r(0,8);-32768;32767;",128,0,0,022 .stabs "short unsigned int:t(0,9)=r(0,9);0;0177777;",128,0,0,023 .stabs "signed char:t(0,10)=@s8;r(0,10);-128;127;",128,0,0,024 .stabs "unsigned char:t(0,11)=@s8;r(0,11);0;255;",128,0,0,025 .stabs "float:t(0,12)=r(0,1);4;0;",128,0,0,026 .stabs "double:t(0,13)=r(0,1);4;0;",128,0,0,027 .stabs "long double:t(0,14)=r(0,1);4;0;",128,0,0,028 .stabs "void:t(0,15)=(0,15)",128,0,0,029 .stabs "/usr/lib/gcc/avr/4.2.1/../../../../avr/include/avr/io.h",130,0,0,030 .stabs "/usr/lib/gcc/avr/4.2.1/../../../../avr/include/avr/sfr_defs.h",130,0,0,031 .stabs "/usr/lib/gcc/avr/4.2.1/../../../../avr/include/inttypes.h",130,0,0,032 .stabs "/usr/lib/gcc/avr/4.2.1/../../../../avr/include/stdint.h",130,0,0,033 .stabs "int8_t:t(4,1)=(0,10)",128,0,116,034 .stabs "uint8_t:t(4,2)=(0,11)",128,0,117,035 .stabs "int16_t:t(4,3)=(0,1)",128,0,118,036 .stabs "uint16_t:t(4,4)=(0,4)",128,0,119,037 .stabs "int32_t:t(4,5)=(0,3)",128,0,120,038 .stabs "uint32_t:t(4,6)=(0,5)",128,0,121,039 .stabs "int64_t:t(4,7)=(0,6)",128,0,122,040 .stabs "uint64_t:t(4,8)=(0,7)",128,0,123,041 .stabs "intptr_t:t(4,9)=(4,3)",128,0,135,042 .stabs "uintptr_t:t(4,10)=(4,4)",128,0,140,043 .stabs "int_least8_t:t(4,11)=(4,1)",128,0,152,044 .stabs "uint_least8_t:t(4,12)=(4,2)",128,0,157,045 .stabs "int_least16_t:t(4,13)=(4,3)",128,0,162,046 .stabs "uint_least16_t:t(4,14)=(4,4)",128,0,167,047 .stabs "int_least32_t:t(4,15)=(4,5)",128,0,172,048 .stabs "uint_least32_t:t(4,16)=(4,6)",128,0,177,049 .stabs "int_least64_t:t(4,17)=(4,7)",128,0,182,050 .stabs "uint_least64_t:t(4,18)=(4,8)",128,0,187,051 .stabs "int_fast8_t:t(4,19)=(4,1)",128,0,200,052 .stabs "uint_fast8_t:t(4,20)=(4,2)",128,0,205,053 .stabs "int_fast16_t:t(4,21)=(4,3)",128,0,210,054 .stabs "uint_fast16_t:t(4,22)=(4,4)",128,0,215,055 .stabs "int_fast32_t:t(4,23)=(4,5)",128,0,220,056 .stabs "uint_fast32_t:t(4,24)=(4,6)",128,0,225,057 .stabs "int_fast64_t:t(4,25)=(4,7)",128,0,230,0GAS LISTING /tmp/ccX0nxLF.s page 258 .stabs "uint_fast64_t:t(4,26)=(4,8)",128,0,235,059 .stabs "intmax_t:t(4,27)=(4,7)",128,0,249,060 .stabs "uintmax_t:t(4,28)=(4,8)",128,0,254,061 .stabn 162,0,0,062 .stabs "int_farptr_t:t(3,1)=(4,5)",128,0,76,063 .stabs "uint_farptr_t:t(3,2)=(4,6)",128,0,80,064 .stabn 162,0,0,065 .stabn 162,0,0,066 .stabn 162,0,0,067 .stabs "CommonDefs.h",130,0,0,068 .stabs "bool_t:t(5,1)=(0,11)",128,0,56,069 .stabn 162,0,0,070 .stabs "UartInt_init:F(0,15)",36,0,76,UartInt_init71 .global UartInt_init72 .type UartInt_init, @function73 UartInt_init:74 .stabd 46,0,01:UartInterface.c **** /*2:UartInterface.c **** Copyright (C) 2004 John Orlando3:UartInterface.c ****4:UartInterface.c **** AVRcam: a small real-time image processing engine.5:UartInterface.c ****6:UartInterface.c **** This program is free software; you can redistribute it and/or7:UartInterface.c **** modify it under the terms of the GNU General Public8:UartInterface.c **** License as published by the Free Software Foundation; either9:UartInterface.c **** version 2 of the License, or (at your option) any later version.10:UartInterface.c ****11:UartInterface.c **** This program is distributed in the hope that it will be useful,12:UartInterface.c **** but WITHOUT ANY WARRANTY; without even the implied warranty of13:UartInterface.c **** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU14:UartInterface.c **** General Public License for more details.15:UartInterface.c ****16:UartInterface.c **** You should have received a copy of the GNU General Public17:UartInterface.c **** License along with this program; if not, write to the Free Software18:UartInterface.c **** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA19:UartInterface.c ****20:UartInterface.c **** For more information on the AVRcam, please contact:21:UartInterface.c ****22:UartInterface.c **** john@jrobot.net23:UartInterface.c ****24:UartInterface.c **** or go to www.jrobot.net for more details regarding the system.25:UartInterface.c **** */26:UartInterface.c **** /***********************************************************27:UartInterface.c **** Module Name: UartInterface.c28:UartInterface.c **** Module Date: 04/10/200429:UartInterface.c **** Module Auth: John Orlando30:UartInterface.c ****31:UartInterface.c **** Description: This module is responsible for providing an32:UartInterface.c **** interface to the UART hardware available on the mega8.33:UartInterface.c **** This interface is an interrupt-driven interface.34:UartInterface.c ****35:UartInterface.c **** Revision History:36:UartInterface.c **** Date Rel Ver. Notes37:UartInterface.c **** 4/10/2004 0.1 Module created38:UartInterface.c **** 6/30/2004 1.0 Initial release for Circuit Cellar39:UartInterface.c **** contest.40:UartInterface.c **** 11/15/2004 1.2 Updated UART baud rate regs so thatGAS LISTING /tmp/ccX0nxLF.s page 341:UartInterface.c **** it runs at 115.2 kbps when the input42:UartInterface.c **** crystal is at 17.7 MHz (which is the43:UartInterface.c **** speed of the OV6620's crystal).44:UartInterface.c **** 1/16/2005 1.4 Moved the serial received ISR to45:UartInterface.c **** this file, instead of having it46:UartInterface.c **** in its own UartInterfaceAsm.S file47:UartInterface.c **** written in assembly.48:UartInterface.c **** ***********************************************************/49:UartInterface.c ****50:UartInterface.c **** /* Includes */51:UartInterface.c **** #include <avr/io.h>52:UartInterface.c **** #include <avr/interrupt.h>53:UartInterface.c **** #include "CommonDefs.h"54:UartInterface.c **** #include "UartInterface.h"55:UartInterface.c **** #include "UIMgr.h"56:UartInterface.c **** #include "Executive.h"57:UartInterface.c ****58:UartInterface.c **** /* Local Variables */59:UartInterface.c ****60:UartInterface.c **** /* Local Structures and Typedefs */61:UartInterface.c ****62:UartInterface.c **** /* Extern Variables */63:UartInterface.c ****64:UartInterface.c **** /* Definitions */65:UartInterface.c ****66:UartInterface.c **** /***********************************************************67:UartInterface.c **** Function Name: UartInt_init68:UartInterface.c **** Function Description: This function is responsible for69:UartInterface.c **** initializing the UART interface on the mega8. This70:UartInterface.c **** interface is set to communicate at 115.2 Kbps, with an71:UartInterface.c **** 8N1 protocol.72:UartInterface.c **** Inputs: none73:UartInterface.c **** Outputs: none74:UartInterface.c **** ***********************************************************/75:UartInterface.c **** void UartInt_init(void)76:UartInterface.c **** {75 .stabn 68,0,76,.LM0-.LFBB176 .LM0:77 .LFBB1:78 /* prologue: frame size=0 */79 /* prologue end (size=0) */77:UartInterface.c **** /* set up the baud rate registers so the UART will operate78:UartInterface.c **** at 115.2 Kbps */79:UartInterface.c **** UBRRH = 0x00;80 .stabn 68,0,79,.LM1-.LFBB181 .LM1:82 0000 10BC out 64-0x20,__zero_reg__80:UartInterface.c ****81:UartInterface.c **** #ifdef NO_CRYSTAL82:UartInterface.c **** UBRRL = 18; /* 18 for double clocking at 115.2 kbps */83 .stabn 68,0,82,.LM2-.LFBB184 .LM2:85 0002 82E1 ldi r24,lo8(18)86 0004 89B9 out 41-0x20,r2483:UartInterface.c **** #else84:UartInterface.c **** UBRRL = 0x08; /* for 16 MHz crystal at 115.2 kbps */85:UartInterface.c **** #endifGAS LISTING /tmp/ccX0nxLF.s page 486:UartInterface.c ****87:UartInterface.c **** /* enable the tx and rx capabilities of the UART...as well88:UartInterface.c **** as the receive complete interrupt */89:UartInterface.c **** UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN);87 .stabn 68,0,89,.LM3-.LFBB188 .LM3:89 0006 88E9 ldi r24,lo8(-104)90 0008 8AB9 out 42-0x20,r2490:UartInterface.c ****91:UartInterface.c **** /* set up the control registers so the UART works at 8N1 */92:UartInterface.c **** UCSRC = (1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0);91 .stabn 68,0,92,.LM4-.LFBB192 .LM4:93 000a 86E8 ldi r24,lo8(-122)94 000c 80BD out 64-0x20,r2493:UartInterface.c ****94:UartInterface.c **** #ifdef NO_CRYSTAL95:UartInterface.c **** /* set the baud rate to use the double-speed */96:UartInterface.c **** UCSRA = (1<<U2X);95 .stabn 68,0,96,.LM5-.LFBB196 .LM5:97 000e 82E0 ldi r24,lo8(2)98 0010 8BB9 out 43-0x20,r2499 /* epilogue: frame size=0 */100 0012 0895 ret101 /* epilogue end (size=1) */102 /* function UartInt_init size 10 (9) */103 .size UartInt_init, .-UartInt_init104 .Lscope1:105 .stabs "",36,0,0,.Lscope1-.LFBB1106 .stabd 78,0,0107 .stabs "UartInt_txByte:F(0,15)",36,0,115,UartInt_txByte108 .stabs "txByte:P(0,11)",64,0,114,24109 .global UartInt_txByte110 .type UartInt_txByte, @function111 UartInt_txByte:112 .stabd 46,0,097:UartInterface.c **** #endif98:UartInterface.c ****99:UartInterface.c **** }100:UartInterface.c ****101:UartInterface.c **** /***********************************************************102:UartInterface.c **** Function Name: UartInt_txByte103:UartInterface.c **** Function Description: This function is responsible for104:UartInterface.c **** transmitting a single byte on the uart.105:UartInterface.c **** Inputs: txByte - the byte to send106:UartInterface.c **** Outputs: none107:UartInterface.c **** NOTES: When the TX UDRE (data register empty) is set, there108:UartInterface.c **** is puposefully no interrupt...thus, to send a string of109:UartInterface.c **** data out, the calling routine needs to hold up the entire110:UartInterface.c **** application while this takes place (or just send one111:UartInterface.c **** byte at a time at strtegically timed intervals, like112:UartInterface.c **** the stats data is sent out :-)113:UartInterface.c **** ***********************************************************/114:UartInterface.c **** void UartInt_txByte(unsigned char txByte)115:UartInterface.c **** {113 .stabn 68,0,115,.LM6-.LFBB2GAS LISTING /tmp/ccX0nxLF.s page 5114 .LM6:115 .LFBB2:116 /* prologue: frame size=0 */117 /* prologue end (size=0) */118 .L5:116:UartInterface.c **** /* Wait for empty transmit buffer */117:UartInterface.c **** while ( !( UCSRA & (1<<UDRE)) );119 .stabn 68,0,117,.LM7-.LFBB2120 .LM7:121 0014 5D9B sbis 43-0x20,5122 0016 00C0 rjmp .L5118:UartInterface.c **** /* Put data into buffer, sends the data */119:UartInterface.c **** UDR = txByte;123 .stabn 68,0,119,.LM8-.LFBB2124 .LM8:125 0018 8CB9 out 44-0x20,r24126 /* epilogue: frame size=0 */127 001a 0895 ret128 /* epilogue end (size=1) */129 /* function UartInt_txByte size 4 (3) */130 .size UartInt_txByte, .-UartInt_txByte131 .Lscope2:132 .stabs "",36,0,0,.Lscope2-.LFBB2133 .stabd 78,0,0134 .stabs "__vector_11:F(0,15)",36,0,138,__vector_11135 .global __vector_11136 .type __vector_11, @function137 __vector_11:138 .stabd 46,0,0120:UartInterface.c **** }121:UartInterface.c ****122:UartInterface.c **** /***********************************************************123:UartInterface.c **** Function Name: SIG_UART_RECV ISR124:UartInterface.c **** Function Description: This function is responsible for125:UartInterface.c **** handling the interrupt caused when a data byte is126:UartInterface.c **** received by the UART.127:UartInterface.c **** Inputs: none128:UartInterface.c **** Outputs: none129:UartInterface.c **** NOTES: This function was originally written in assembly,130:UartInterface.c **** but moved over to C when the setting of the "T" bit at131:UartInterface.c **** the end of the routine was no longer necessary (this132:UartInterface.c **** theoretically allowed the AVRcam to respond to serial133:UartInterface.c **** bytes in the middle of tracking or dumping a frame.134:UartInterface.c **** But it wasn't really needed, and understanding the C135:UartInterface.c **** is easier :-)136:UartInterface.c **** ***********************************************************/137:UartInterface.c **** SIGNAL(SIG_UART_RECV)138:UartInterface.c **** {139 .stabn 68,0,138,.LM9-.LFBB3140 .LM9:141 .LFBB3:142 /* prologue: frame size=0 */143 001c 1F92 push __zero_reg__144 001e 0F92 push __tmp_reg__145 0020 0FB6 in __tmp_reg__,__SREG__146 0022 0F92 push __tmp_reg__147 0024 1124 clr __zero_reg__GAS LISTING /tmp/ccX0nxLF.s page 6148 0026 8F93 push r24149 0028 9F93 push r25150 002a EF93 push r30151 002c FF93 push r31152 /* prologue end (size=9) */139:UartInterface.c **** unsigned char tmpHead;140:UartInterface.c **** /* read the data byte, put it in the serial queue, and141:UartInterface.c **** post the event */142:UartInterface.c ****143:UartInterface.c **** UIMgr_rxFifo[UIMgr_rxFifoHead] = UDR;153 .stabn 68,0,143,.LM10-.LFBB3154 .LM10:155 002e 8091 0000 lds r24,UIMgr_rxFifoHead156 0032 9CB1 in r25,44-0x20157 0034 E0E0 ldi r30,lo8(UIMgr_rxFifo)158 0036 F0E0 ldi r31,hi8(UIMgr_rxFifo)159 0038 E80F add r30,r24160 003a F11D adc r31,__zero_reg__161 003c 9083 st Z,r25144:UartInterface.c ****145:UartInterface.c **** /* now move the head up */146:UartInterface.c **** tmpHead = (UIMgr_rxFifoHead + 1) & (UI_MGR_RX_FIFO_MASK);147:UartInterface.c **** UIMgr_rxFifoHead = tmpHead;162 .stabn 68,0,147,.LM11-.LFBB3163 .LM11:164 003e 8F5F subi r24,lo8(-(1))165 0040 8F71 andi r24,lo8(31)166 0042 8093 0000 sts UIMgr_rxFifoHead,r24148:UartInterface.c ****149:UartInterface.c **** /* write the serial received event to the event fifo */150:UartInterface.c **** Exec_eventFifo[Exec_eventFifoHead] = EV_SERIAL_DATA_RECEIVED;167 .stabn 68,0,150,.LM12-.LFBB3168 .LM12:169 0046 8091 0000 lds r24,Exec_eventFifoHead170 004a E0E0 ldi r30,lo8(Exec_eventFifo)171 004c F0E0 ldi r31,hi8(Exec_eventFifo)172 004e E80F add r30,r24173 0050 F11D adc r31,__zero_reg__174 0052 91E0 ldi r25,lo8(1)175 0054 9083 st Z,r25151:UartInterface.c ****152:UartInterface.c **** /* now move the head up */153:UartInterface.c **** tmpHead = (Exec_eventFifoHead + 1) & (EXEC_EVENT_FIFO_MASK);154:UartInterface.c **** Exec_eventFifoHead = tmpHead;176 .stabn 68,0,154,.LM13-.LFBB3177 .LM13:178 0056 8F5F subi r24,lo8(-(1))179 0058 8770 andi r24,lo8(7)180 005a 8093 0000 sts Exec_eventFifoHead,r24181 /* epilogue: frame size=0 */182 005e FF91 pop r31183 0060 EF91 pop r30184 0062 9F91 pop r25185 0064 8F91 pop r24186 0066 0F90 pop __tmp_reg__187 0068 0FBE out __SREG__,__tmp_reg__188 006a 0F90 pop __tmp_reg__GAS LISTING /tmp/ccX0nxLF.s page 7189 006c 1F90 pop __zero_reg__190 006e 1895 reti191 /* epilogue end (size=9) */192 /* function __vector_11 size 42 (24) */193 .size __vector_11, .-__vector_11194 .Lscope3:195 .stabs "",36,0,0,.Lscope3-.LFBB3196 .stabd 78,0,0197 .stabs "",100,0,0,.Letext0198 .Letext0:199 /* File "UartInterface.c": code 56 = 0x0038 ( 36), prologues 9, epilogues 11 */GAS LISTING /tmp/ccX0nxLF.s page 8DEFINED SYMBOLS*ABS*:00000000 UartInterface.c/tmp/ccX0nxLF.s:2 *ABS*:0000003f __SREG__/tmp/ccX0nxLF.s:3 *ABS*:0000003e __SP_H__/tmp/ccX0nxLF.s:4 *ABS*:0000003d __SP_L__/tmp/ccX0nxLF.s:5 *ABS*:00000000 __tmp_reg__/tmp/ccX0nxLF.s:6 *ABS*:00000001 __zero_reg__/tmp/ccX0nxLF.s:73 .text:00000000 UartInt_init/tmp/ccX0nxLF.s:111 .text:00000014 UartInt_txByte/tmp/ccX0nxLF.s:137 .text:0000001c __vector_11UNDEFINED SYMBOLS__do_copy_data__do_clear_bssUIMgr_rxFifoHeadUIMgr_rxFifoExec_eventFifoHeadExec_eventFifo