[3587f7f] | 1 | /* Name: usbportability.h
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| 2 | * Project: V-USB, virtual USB port for Atmel's(r) AVR(r) microcontrollers
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| 3 | * Author: Christian Starkjohann
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| 4 | * Creation Date: 2008-06-17
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| 5 | * Tabsize: 4
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| 6 | * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
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| 7 | * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
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| 8 | * This Revision: $Id: usbportability.h 785 2010-05-30 17:57:07Z cs $
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| 9 | */
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| 10 |
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| 11 | /*
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| 12 | General Description:
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| 13 | This header is intended to contain all (or at least most of) the compiler
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| 14 | and library dependent stuff. The C code is written for avr-gcc and avr-libc.
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| 15 | The API of other development environments is converted to gcc's and avr-libc's
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| 16 | API by means of defines.
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| 17 |
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| 18 | This header also contains all system includes since they depend on the
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| 19 | development environment.
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| 20 |
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| 21 | Thanks to Oleg Semyonov for his help with the IAR tools port!
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| 22 | */
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| 23 |
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| 24 | #ifndef __usbportability_h_INCLUDED__
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| 25 | #define __usbportability_h_INCLUDED__
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| 26 |
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| 27 | /* We check explicitly for IAR and CodeVision. Default is avr-gcc/avr-libc. */
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| 28 |
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| 29 | /* ------------------------------------------------------------------------- */
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| 30 | #if defined __IAR_SYSTEMS_ICC__ || defined __IAR_SYSTEMS_ASM__ /* check for IAR */
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| 31 | /* ------------------------------------------------------------------------- */
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| 32 |
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| 33 | #ifndef ENABLE_BIT_DEFINITIONS
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| 34 | # define ENABLE_BIT_DEFINITIONS 1 /* Enable bit definitions */
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| 35 | #endif
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| 36 |
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| 37 | /* Include IAR headers */
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| 38 | #include <ioavr.h>
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| 39 | #ifndef __IAR_SYSTEMS_ASM__
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| 40 | # include <inavr.h>
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| 41 | #endif
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| 42 |
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| 43 | #define __attribute__(arg) /* not supported on IAR */
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| 44 |
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| 45 | #ifdef __IAR_SYSTEMS_ASM__
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| 46 | # define __ASSEMBLER__ /* IAR does not define standard macro for asm */
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| 47 | #endif
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| 48 |
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| 49 | #ifdef __HAS_ELPM__
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| 50 | # define PROGMEM __farflash
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| 51 | #else
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| 52 | # define PROGMEM __flash
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| 53 | #endif
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| 54 |
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| 55 | #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr))
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| 56 |
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| 57 | /* The following definitions are not needed by the driver, but may be of some
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| 58 | * help if you port a gcc based project to IAR.
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| 59 | */
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| 60 | #define cli() __disable_interrupt()
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| 61 | #define sei() __enable_interrupt()
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| 62 | #define wdt_reset() __watchdog_reset()
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| 63 | #define _BV(x) (1 << (x))
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| 64 |
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| 65 | /* assembler compatibility macros */
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| 66 | #define nop2 rjmp $+2 /* jump to next instruction */
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| 67 | #define XL r26
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| 68 | #define XH r27
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| 69 | #define YL r28
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| 70 | #define YH r29
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| 71 | #define ZL r30
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| 72 | #define ZH r31
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| 73 | #define lo8(x) LOW(x)
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| 74 | #define hi8(x) (((x)>>8) & 0xff) /* not HIGH to allow XLINK to make a proper range check */
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| 75 |
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| 76 | /* Depending on the device you use, you may get problems with the way usbdrv.h
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| 77 | * handles the differences between devices. Since IAR does not use #defines
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| 78 | * for MCU registers, we can't check for the existence of a particular
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| 79 | * register with an #ifdef. If the autodetection mechanism fails, include
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| 80 | * definitions for the required USB_INTR_* macros in your usbconfig.h. See
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| 81 | * usbconfig-prototype.h and usbdrv.h for details.
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| 82 | */
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| 83 |
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| 84 | /* ------------------------------------------------------------------------- */
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| 85 | #elif __CODEVISIONAVR__ /* check for CodeVision AVR */
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| 86 | /* ------------------------------------------------------------------------- */
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| 87 | /* This port is not working (yet) */
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| 88 |
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| 89 | /* #define F_CPU _MCU_CLOCK_FREQUENCY_ seems to be defined automatically */
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| 90 |
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| 91 | #include <io.h>
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| 92 | #include <delay.h>
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| 93 |
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| 94 | #define __attribute__(arg) /* not supported on IAR */
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| 95 |
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| 96 | #define PROGMEM __flash
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| 97 | #define USB_READ_FLASH(addr) (*(PROGMEM char *)(addr))
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| 98 |
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| 99 | #ifndef __ASSEMBLER__
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| 100 | static inline void cli(void)
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| 101 | {
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| 102 | #asm("cli");
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| 103 | }
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| 104 | static inline void sei(void)
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| 105 | {
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| 106 | #asm("sei");
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| 107 | }
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| 108 | #endif
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| 109 | #define _delay_ms(t) delay_ms(t)
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| 110 | #define _BV(x) (1 << (x))
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| 111 | #define USB_CFG_USE_SWITCH_STATEMENT 1 /* macro for if() cascase fails for unknown reason */
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| 112 |
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| 113 | #define macro .macro
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| 114 | #define endm .endmacro
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| 115 | #define nop2 rjmp .+0 /* jump to next instruction */
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| 116 |
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| 117 | /* ------------------------------------------------------------------------- */
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| 118 | #else /* default development environment is avr-gcc/avr-libc */
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| 119 | /* ------------------------------------------------------------------------- */
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| 120 |
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| 121 | #include <avr/io.h>
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| 122 | #ifdef __ASSEMBLER__
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| 123 | # define _VECTOR(N) __vector_ ## N /* io.h does not define this for asm */
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| 124 | #else
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| 125 | # include <avr/pgmspace.h>
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| 126 | #endif
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| 127 |
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| 128 | #if USB_CFG_DRIVER_FLASH_PAGE
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| 129 | # define USB_READ_FLASH(addr) pgm_read_byte_far(((long)USB_CFG_DRIVER_FLASH_PAGE << 16) | (long)(addr))
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| 130 | #else
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| 131 | # define USB_READ_FLASH(addr) pgm_read_byte(addr)
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| 132 | #endif
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| 133 |
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| 134 | #define macro .macro
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| 135 | #define endm .endm
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| 136 | #define nop2 rjmp .+0 /* jump to next instruction */
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| 137 |
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| 138 | #endif /* development environment */
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| 139 |
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| 140 | /* for conveniecne, ensure that PRG_RDB exists */
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| 141 | #ifndef PRG_RDB
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| 142 | # define PRG_RDB(addr) USB_READ_FLASH(addr)
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| 143 | #endif
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| 144 | #endif /* __usbportability_h_INCLUDED__ */
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