0,0 → 1,74 |
// ====================================================================== |
// Common definitions for the USB driver |
// |
// Copyright (C) 2006 Dick Streefland |
// |
// This is free software, licensed under the terms of the GNU General |
// Public License as published by the Free Software Foundation. |
// ====================================================================== |
|
#ifdef __ASSEMBLER__ |
#define __SFR_OFFSET 0 |
#endif |
#include <avr/io.h> |
#include "usbtiny.h" |
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// Preprocessor magic |
#define CAT2(a,b) CAT2EXP(a, b) |
#define CAT2EXP(a,b) a ## b |
#define CAT3(a,b,c) CAT3EXP(a, b, c) |
#define CAT3EXP(a,b,c) a ## b ## c |
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// I/O Ports |
#define USB_IN CAT2(PIN, USBTINY_PORT) |
#define USB_OUT CAT2(PORT, USBTINY_PORT) |
#define USB_DDR CAT2(DDR, USBTINY_PORT) |
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// I/O bit masks |
#define USB_MASK_DMINUS (1 << (USBTINY_DMINUS)) |
#define USB_MASK_DPLUS (1 << (USBTINY_DPLUS)) |
#define USB_MASK (USB_MASK_DMINUS | USB_MASK_DPLUS) |
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// Interrupt configuration |
#if defined EICRA |
# define USB_INT_CONFIG EICRA |
#else |
# define USB_INT_CONFIG MCUCR |
#endif |
#define USB_INT_CONFIG_SET ((1 << CAT3(ISC,USBTINY_INT,1)) | (1 << CAT3(ISC,USBTINY_INT,0))) |
#if defined SIG_INT0 |
# define USB_INT_VECTOR CAT2(SIG_INT, USBTINY_INT) |
#else |
# define USB_INT_VECTOR CAT2(SIG_INTERRUPT, USBTINY_INT) |
#endif |
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// Interrupt enable |
#if defined GIMSK |
# define USB_INT_ENABLE GIMSK |
#elif defined EIMSK |
# define USB_INT_ENABLE EIMSK |
#else |
# define USB_INT_ENABLE GICR |
#endif |
#define USB_INT_ENABLE_BIT CAT2(INT,USBTINY_INT) |
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// Interrupt pending bit |
#if defined EIFR |
# define USB_INT_PENDING EIFR |
#else |
# define USB_INT_PENDING GIFR |
#endif |
#define USB_INT_PENDING_BIT CAT2(INTF,USBTINY_INT) |
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// USB PID values |
#define USB_PID_SETUP 0x2d |
#define USB_PID_OUT 0xe1 |
#define USB_PID_IN 0x69 |
#define USB_PID_DATA0 0xc3 |
#define USB_PID_DATA1 0x4b |
#define USB_PID_ACK 0xd2 |
#define USB_PID_NAK 0x5a |
#define USB_PID_STALL 0x1e |
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// Various constants |
#define USB_BUFSIZE 11 // PID + data + CRC |