| | 1 | /* Name: usbportability.h |
| | 2 | * Project: V-USB, virtual USB port for Atmel's(r) AVR(r) microcontrollers |
| | 3 | * Author: Christian Starkjohann |
| | 4 | * Creation Date: 2008-06-17 |
| | 5 | * Tabsize: 4 |
| | 6 | * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH |
| | 7 | * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt) |
| | 8 | * This Revision: $Id: usbportability.h 740 2009-04-13 18:23:31Z cs $ |
| | 9 | */ |
| | 10 | |
| | 11 | /* |
| | 12 | General Description: |
| | 13 | This header is intended to contain all (or at least most of) the compiler |
| | 14 | and library dependent stuff. The C code is written for avr-gcc and avr-libc. |
| | 15 | The API of other development environments is converted to gcc's and avr-libc's |
| | 16 | API by means of defines. |
| | 17 | |
| | 18 | This header also contains all system includes since they depend on the |
| | 19 | development environment. |
| | 20 | |
| | 21 | Thanks to Oleg Semyonov for his help with the IAR tools port! |
| | 22 | */ |
| | 23 | |
| | 24 | #ifndef __usbportability_h_INCLUDED__ |
| | 25 | #define __usbportability_h_INCLUDED__ |
| | 26 | |
| | 27 | /* We check explicitly for IAR and CodeVision. Default is avr-gcc/avr-libc. */ |
| | 28 | |
| | 29 | /* ------------------------------------------------------------------------- */ |
| | 30 | #if defined __IAR_SYSTEMS_ICC__ || defined __IAR_SYSTEMS_ASM__ /* check for IAR */ |
| | 31 | /* ------------------------------------------------------------------------- */ |
| | 32 | |
| | 33 | #ifndef ENABLE_BIT_DEFINITIONS |
| | 34 | # define ENABLE_BIT_DEFINITIONS 1 /* Enable bit definitions */ |
| | 35 | #endif |
| | 36 | |
| | 37 | /* Include IAR headers */ |
| | 38 | #include <ioavr.h> |
| | 39 | #ifndef __IAR_SYSTEMS_ASM__ |
| | 40 | # include <inavr.h> |
| | 41 | #endif |
| | 42 | |
| | 43 | #define __attribute__(arg) /* not supported on IAR */ |
| | 44 | |
| | 45 | #ifdef __IAR_SYSTEMS_ASM__ |
| | 46 | # define __ASSEMBLER__ /* IAR does not define standard macro for asm */ |
| | 47 | #endif |
| | 48 | |
| | 49 | #ifdef __HAS_ELPM__ |
| | 50 | # define PROGMEM __farflash |
| | 51 | #else |
| | 52 | # define PROGMEM __flash |
| | 53 | #endif |
| | 54 | |
| | 55 | #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr)) |
| | 56 | |
| | 57 | /* The following definitions are not needed by the driver, but may be of some |
| | 58 | * help if you port a gcc based project to IAR. |
| | 59 | */ |
| | 60 | #define cli() __disable_interrupt() |
| | 61 | #define sei() __enable_interrupt() |
| | 62 | #define wdt_reset() __watchdog_reset() |
| | 63 | #define _BV(x) (1 << (x)) |
| | 64 | |
| | 65 | /* assembler compatibility macros */ |
| | 66 | #define nop2 rjmp $+2 /* jump to next instruction */ |
| | 67 | #define XL r26 |
| | 68 | #define XH r27 |
| | 69 | #define YL r28 |
| | 70 | #define YH r29 |
| | 71 | #define ZL r30 |
| | 72 | #define ZH r31 |
| | 73 | #define lo8(x) LOW(x) |
| | 74 | #define hi8(x) (((x)>>8) & 0xff) /* not HIGH to allow XLINK to make a proper range check */ |
| | 75 | |
| | 76 | /* Depending on the device you use, you may get problems with the way usbdrv.h |
| | 77 | * handles the differences between devices. Since IAR does not use #defines |
| | 78 | * for MCU registers, we can't check for the existence of a particular |
| | 79 | * register with an #ifdef. If the autodetection mechanism fails, include |
| | 80 | * definitions for the required USB_INTR_* macros in your usbconfig.h. See |
| | 81 | * usbconfig-prototype.h and usbdrv.h for details. |
| | 82 | */ |
| | 83 | |
| | 84 | /* ------------------------------------------------------------------------- */ |
| | 85 | #elif __CODEVISIONAVR__ /* check for CodeVision AVR */ |
| | 86 | /* ------------------------------------------------------------------------- */ |
| | 87 | /* This port is not working (yet) */ |
| | 88 | |
| | 89 | /* #define F_CPU _MCU_CLOCK_FREQUENCY_ seems to be defined automatically */ |
| | 90 | |
| | 91 | #include <io.h> |
| | 92 | #include <delay.h> |
| | 93 | |
| | 94 | #define __attribute__(arg) /* not supported on IAR */ |
| | 95 | |
| | 96 | #define PROGMEM __flash |
| | 97 | #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr)) |
| | 98 | |
| | 99 | #ifndef __ASSEMBLER__ |
| | 100 | static inline void cli(void) |
| | 101 | { |
| | 102 | #asm("cli"); |
| | 103 | } |
| | 104 | static inline void sei(void) |
| | 105 | { |
| | 106 | #asm("sei"); |
| | 107 | } |
| | 108 | #endif |
| | 109 | #define _delay_ms(t) delay_ms(t) |
| | 110 | #define _BV(x) (1 << (x)) |
| | 111 | #define USB_CFG_USE_SWITCH_STATEMENT 1 /* macro for if() cascase fails for unknown reason */ |
| | 112 | |
| | 113 | #define macro .macro |
| | 114 | #define endm .endmacro |
| | 115 | #define nop2 rjmp .+0 /* jump to next instruction */ |
| | 116 | |
| | 117 | /* ------------------------------------------------------------------------- */ |
| | 118 | #else /* default development environment is avr-gcc/avr-libc */ |
| | 119 | /* ------------------------------------------------------------------------- */ |
| | 120 | |
| | 121 | #include <avr/io.h> |
| | 122 | #ifdef __ASSEMBLER__ |
| | 123 | # define _VECTOR(N) __vector_ ## N /* io.h does not define this for asm */ |
| | 124 | #else |
| | 125 | # include <avr/pgmspace.h> |
| | 126 | #endif |
| | 127 | |
| | 128 | #define USB_READ_FLASH(addr) pgm_read_byte(addr) |
| | 129 | |
| | 130 | #define macro .macro |
| | 131 | #define endm .endm |
| | 132 | #define nop2 rjmp .+0 /* jump to next instruction */ |
| | 133 | |
| | 134 | #endif /* development environment */ |
| | 135 | |
| | 136 | /* for conveniecne, ensure that PRG_RDB exists */ |
| | 137 | #ifndef PRG_RDB |
| | 138 | # define PRG_RDB(addr) USB_READ_FLASH(addr) |
| | 139 | #endif |
| | 140 | #endif /* __usbportability_h_INCLUDED__ */ |
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