comparison: usbdrv/usbportability.h
usbdrv/usbportability.h
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| 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 */ | |
| 9 | |
| 10 /* | |
| 11 General Description: | |
| 12 This header is intended to contain all (or at least most of) the compiler | |
| 13 and library dependent stuff. The C code is written for avr-gcc and avr-libc. | |
| 14 The API of other development environments is converted to gcc's and avr-libc's | |
| 15 API by means of defines. | |
| 16 | |
| 17 This header also contains all system includes since they depend on the | |
| 18 development environment. | |
| 19 | |
| 20 Thanks to Oleg Semyonov for his help with the IAR tools port! | |
| 21 */ | |
| 22 | |
| 23 #ifndef __usbportability_h_INCLUDED__ | |
| 24 #define __usbportability_h_INCLUDED__ | |
| 25 | |
| 26 /* We check explicitly for IAR and CodeVision. Default is avr-gcc/avr-libc. */ | |
| 27 | |
| 28 /* ------------------------------------------------------------------------- */ | |
| 29 #if defined __IAR_SYSTEMS_ICC__ || defined __IAR_SYSTEMS_ASM__ /* check for IAR */ | |
| 30 /* ------------------------------------------------------------------------- */ | |
| 31 | |
| 32 #ifndef ENABLE_BIT_DEFINITIONS | |
| 33 # define ENABLE_BIT_DEFINITIONS 1 /* Enable bit definitions */ | |
| 34 #endif | |
| 35 | |
| 36 /* Include IAR headers */ | |
| 37 #include <ioavr.h> | |
| 38 #ifndef __IAR_SYSTEMS_ASM__ | |
| 39 # include <inavr.h> | |
| 40 #endif | |
| 41 | |
| 42 #define __attribute__(arg) /* not supported on IAR */ | |
| 43 | |
| 44 #ifdef __IAR_SYSTEMS_ASM__ | |
| 45 # define __ASSEMBLER__ /* IAR does not define standard macro for asm */ | |
| 46 #endif | |
| 47 | |
| 48 #ifdef __HAS_ELPM__ | |
| 49 # define PROGMEM __farflash | |
| 50 #else | |
| 51 # define PROGMEM __flash | |
| 52 #endif | |
| 53 | |
| 54 #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr)) | |
| 55 | |
| 56 /* The following definitions are not needed by the driver, but may be of some | |
| 57 * help if you port a gcc based project to IAR. | |
| 58 */ | |
| 59 #define cli() __disable_interrupt() | |
| 60 #define sei() __enable_interrupt() | |
| 61 #define wdt_reset() __watchdog_reset() | |
| 62 #define _BV(x) (1 << (x)) | |
| 63 | |
| 64 /* assembler compatibility macros */ | |
| 65 #define nop2 rjmp $+2 /* jump to next instruction */ | |
| 66 #define XL r26 | |
| 67 #define XH r27 | |
| 68 #define YL r28 | |
| 69 #define YH r29 | |
| 70 #define ZL r30 | |
| 71 #define ZH r31 | |
| 72 #define lo8(x) LOW(x) | |
| 73 #define hi8(x) (((x)>>8) & 0xff) /* not HIGH to allow XLINK to make a proper range check */ | |
| 74 | |
| 75 /* Depending on the device you use, you may get problems with the way usbdrv.h | |
| 76 * handles the differences between devices. Since IAR does not use #defines | |
| 77 * for MCU registers, we can't check for the existence of a particular | |
| 78 * register with an #ifdef. If the autodetection mechanism fails, include | |
| 79 * definitions for the required USB_INTR_* macros in your usbconfig.h. See | |
| 80 * usbconfig-prototype.h and usbdrv.h for details. | |
| 81 */ | |
| 82 | |
| 83 /* ------------------------------------------------------------------------- */ | |
| 84 #elif __CODEVISIONAVR__ /* check for CodeVision AVR */ | |
| 85 /* ------------------------------------------------------------------------- */ | |
| 86 /* This port is not working (yet) */ | |
| 87 | |
| 88 /* #define F_CPU _MCU_CLOCK_FREQUENCY_ seems to be defined automatically */ | |
| 89 | |
| 90 #include <io.h> | |
| 91 #include <delay.h> | |
| 92 | |
| 93 #define __attribute__(arg) /* not supported on IAR */ | |
| 94 | |
| 95 #define PROGMEM __flash | |
| 96 #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr)) | |
| 97 | |
| 98 #ifndef __ASSEMBLER__ | |
| 99 static inline void cli(void) | |
| 100 { | |
| 101 #asm("cli"); | |
| 102 } | |
| 103 static inline void sei(void) | |
| 104 { | |
| 105 #asm("sei"); | |
| 106 } | |
| 107 #endif | |
| 108 #define _delay_ms(t) delay_ms(t) | |
| 109 #define _BV(x) (1 << (x)) | |
| 110 #define USB_CFG_USE_SWITCH_STATEMENT 1 /* macro for if() cascase fails for unknown reason */ | |
| 111 | |
| 112 #define macro .macro | |
| 113 #define endm .endmacro | |
| 114 #define nop2 rjmp .+0 /* jump to next instruction */ | |
| 115 | |
| 116 /* ------------------------------------------------------------------------- */ | |
| 117 #else /* default development environment is avr-gcc/avr-libc */ | |
| 118 /* ------------------------------------------------------------------------- */ | |
| 119 | |
| 120 #include <avr/io.h> | |
| 121 #ifdef __ASSEMBLER__ | |
| 122 # define _VECTOR(N) __vector_ ## N /* io.h does not define this for asm */ | |
| 123 #else | |
| 124 # include <avr/pgmspace.h> | |
| 125 #endif | |
| 126 | |
| 127 #if USB_CFG_DRIVER_FLASH_PAGE | |
| 128 # define USB_READ_FLASH(addr) pgm_read_byte_far(((long)USB_CFG_DRIVER_FLASH_PAGE << 16) | (long)(addr)) | |
| 129 #else | |
| 130 # define USB_READ_FLASH(addr) pgm_read_byte(addr) | |
| 131 #endif | |
| 132 | |
| 133 #define macro .macro | |
| 134 #define endm .endm | |
| 135 #define nop2 rjmp .+0 /* jump to next instruction */ | |
| 136 | |
| 137 #endif /* development environment */ | |
| 138 | |
| 139 /* for conveniecne, ensure that PRG_RDB exists */ | |
| 140 #ifndef PRG_RDB | |
| 141 # define PRG_RDB(addr) USB_READ_FLASH(addr) | |
| 142 #endif | |
| 143 #endif /* __usbportability_h_INCLUDED__ */ |
