137 lines
4.1 KiB
C
137 lines
4.1 KiB
C
/*
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* Copyright 2001 Brian S. Dean <bsd@bsdhome.com>
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* All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY BRIAN S. DEAN ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BRIAN S. DEAN BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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*/
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/* $Id$ */
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#ifndef __avr_h__
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#define __avr_h__
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#include <stdio.h>
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/*
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* AVR memory designations; the order of these is important, these are
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* used as indexes into statically initialized data, don't change them
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* around. Specifically, avr_read_byte() and avr_write_byte() rely on
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* the order.
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*/
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#define AVR_M_EEPROM 0
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#define AVR_M_FLASH 1
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#define AVR_M_FUSE 2
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#define AVR_M_LOCK 3
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#define AVR_MAXMEMTYPES 2 /* just flash and eeprom */
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typedef struct avrmem {
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int paged; /* page addressed (e.g. ATmega flash) */
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int size; /* total memory size in bytes */
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int page_size; /* size of memory page (if page addressed) */
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int num_pages; /* number of pages (if page addressed) */
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int pageaddr_shift; /* number of bits in the page address */
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int min_write_delay; /* microseconds */
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int max_write_delay; /* microseconds */
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unsigned char readback[2]; /* polled read-back values */
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unsigned char * buf; /* pointer to memory buffer */
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} AVRMEM;
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#define AVR_DESCLEN 64
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#define AVR_IDLEN 32
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typedef struct avrpart {
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char desc[AVR_DESCLEN]; /* long part name */
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char id[AVR_IDLEN]; /* short part name */
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int chip_erase_delay; /* microseconds */
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AVRMEM mem[AVR_MAXMEMTYPES];
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} AVRPART;
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extern struct avrpart parts[];
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AVRPART * avr_find_part(char * p);
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AVRPART * avr_new_part(void);
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AVRPART * avr_dup_part(AVRPART * d);
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int avr_txrx_bit(int fd, int bit);
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unsigned char avr_txrx(int fd, unsigned char byte);
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int avr_cmd(int fd, unsigned char cmd[4], unsigned char res[4]);
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unsigned char avr_read_calibration(int fd, AVRPART * p);
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unsigned char avr_read_fuse(int fd, AVRPART * p, int high);
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int avr_write_fuse(int fd, AVRPART * p, int high, unsigned char b);
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unsigned char avr_read_lock(int fd, AVRPART * p);
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int avr_write_lock(int fd, AVRPART * p, unsigned char b);
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unsigned char avr_read_byte(int fd, AVRPART * p,
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int memtype, unsigned long addr);
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int avr_read(int fd, AVRPART * p, int memtype, int size);
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int avr_write_bank(int fd, AVRPART * p, int memtype,
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unsigned short bank);
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int avr_write_byte(int fd, AVRPART * p, int memtype,
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unsigned long addr, unsigned char data);
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int avr_write(int fd, AVRPART * p, int memtype, int size);
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int avr_program_enable(int fd);
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int avr_chip_erase(int fd, AVRPART * p);
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int avr_signature(int fd, unsigned char sig[4]);
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void avr_powerup(int fd);
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void avr_powerdown(int fd);
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int avr_initialize(int fd, AVRPART * p);
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char * avr_memtstr(int memtype);
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int avr_initmem(AVRPART * p);
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int avr_verify(AVRPART * p, AVRPART * v, int memtype,
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int size);
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void avr_display(FILE * f, AVRPART * p, char * prefix);
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#endif
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