| /* Name: usbportability.h |
| * Project: AVR USB driver |
| * Author: Christian Starkjohann |
| * Creation Date: 2008-06-17 |
| * Tabsize: 4 |
| * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH |
| * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt) |
| * This Revision: $Id: usbportability.h 692 2008-11-07 15:07:40Z cs $ |
| */ |
| |
| /* |
| General Description: |
| This header is intended to contain all (or at least most of) the compiler |
| and library dependent stuff. The C code is written for avr-gcc and avr-libc. |
| The API of other development environments is converted to gcc's and avr-libc's |
| API by means of defines. |
| |
| This header also contains all system includes since they depend on the |
| development environment. |
| |
| Thanks to Oleg Semyonov for his help with the IAR tools port! |
| */ |
| |
| #ifndef __usbportability_h_INCLUDED__ |
| #define __usbportability_h_INCLUDED__ |
| |
| /* We check explicitly for IAR and CodeVision. Default is avr-gcc/avr-libc. */ |
| |
| /* ------------------------------------------------------------------------- */ |
| #if defined __IAR_SYSTEMS_ICC__ || defined __IAR_SYSTEMS_ASM__ /* check for IAR */ |
| /* ------------------------------------------------------------------------- */ |
| |
| #ifndef ENABLE_BIT_DEFINITIONS |
| # define ENABLE_BIT_DEFINITIONS 1 /* Enable bit definitions */ |
| #endif |
| |
| /* Include IAR headers */ |
| #include <ioavr.h> |
| #ifndef __IAR_SYSTEMS_ASM__ |
| # include <inavr.h> |
| #endif |
| |
| #define __attribute__(arg) /* not supported on IAR */ |
| |
| #ifdef __IAR_SYSTEMS_ASM__ |
| # define __ASSEMBLER__ /* IAR does not define standard macro for asm */ |
| #endif |
| |
| #ifdef __HAS_ELPM__ |
| # define PROGMEM __farflash |
| #else |
| # define PROGMEM __flash |
| #endif |
| |
| #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr)) |
| |
| /* The following definitions are not needed by the driver, but may be of some |
| * help if you port a gcc based project to IAR. |
| */ |
| #define cli() __disable_interrupt() |
| #define sei() __enable_interrupt() |
| #define wdt_reset() __watchdog_reset() |
| #define _BV(x) (1 << (x)) |
| |
| /* assembler compatibility macros */ |
| #define nop2 rjmp $+2 /* jump to next instruction */ |
| #define XL r26 |
| #define XH r27 |
| #define YL r28 |
| #define YH r29 |
| #define ZL r30 |
| #define ZH r31 |
| #define lo8(x) LOW(x) |
| #define hi8(x) (((x)>>8) & 0xff) /* not HIGH to allow XLINK to make a proper range check */ |
| |
| /* Depending on the device you use, you may get problems with the way usbdrv.h |
| * handles the differences between devices. Since IAR does not use #defines |
| * for MCU registers, we can't check for the existence of a particular |
| * register with an #ifdef. If the autodetection mechanism fails, include |
| * definitions for the required USB_INTR_* macros in your usbconfig.h. See |
| * usbconfig-prototype.h and usbdrv.h for details. |
| */ |
| |
| /* ------------------------------------------------------------------------- */ |
| #elif __CODEVISIONAVR__ /* check for CodeVision AVR */ |
| /* ------------------------------------------------------------------------- */ |
| /* This port is not working (yet) */ |
| |
| /* #define F_CPU _MCU_CLOCK_FREQUENCY_ seems to be defined automatically */ |
| |
| #include <io.h> |
| #include <delay.h> |
| |
| #define __attribute__(arg) /* not supported on IAR */ |
| |
| #define PROGMEM __flash |
| #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr)) |
| |
| #ifndef __ASSEMBLER__ |
| static inline void cli(void) |
| { |
| #asm("cli"); |
| } |
| static inline void sei(void) |
| { |
| #asm("sei"); |
| } |
| #endif |
| #define _delay_ms(t) delay_ms(t) |
| #define _BV(x) (1 << (x)) |
| #define USB_CFG_USE_SWITCH_STATEMENT 1 /* macro for if() cascase fails for unknown reason */ |
| |
| #define macro .macro |
| #define endm .endmacro |
| #define nop2 rjmp .+0 /* jump to next instruction */ |
| |
| /* ------------------------------------------------------------------------- */ |
| #else /* default development environment is avr-gcc/avr-libc */ |
| /* ------------------------------------------------------------------------- */ |
| |
| #include <avr/io.h> |
| #ifdef __ASSEMBLER__ |
| # define _VECTOR(N) __vector_ ## N /* io.h does not define this for asm */ |
| #else |
| # include <avr/pgmspace.h> |
| #endif |
| |
| #define USB_READ_FLASH(addr) pgm_read_byte(addr) |
| |
| #define macro .macro |
| #define endm .endm |
| #define nop2 rjmp .+0 /* jump to next instruction */ |
| |
| #endif /* development environment */ |
| |
| /* for conveniecne, ensure that PRG_RDB exists */ |
| #ifndef PRG_RDB |
| # define PRG_RDB(addr) USB_READ_FLASH(addr) |
| #endif |
| #endif /* __usbportability_h_INCLUDED__ */ |