From e9297b40b994f071474210e7d9e224d50e25fcaf Mon Sep 17 00:00:00 2001 From: drath Date: Wed, 22 Nov 2006 13:03:10 +0000 Subject: - added a PLD (programmable logic device) subsystem for FPGA, CPLD etc. configuration - added support for loading .bit files into Xilinx Virtex-II devices - added support for the Gateworks GW16012 JTAG dongle - merged CFI fixes from XScale branch - a few minor fixes git-svn-id: svn://svn.berlios.de/openocd/trunk@116 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/pld/xilinx_bit.c | 146 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 src/pld/xilinx_bit.c (limited to 'src/pld/xilinx_bit.c') diff --git a/src/pld/xilinx_bit.c b/src/pld/xilinx_bit.c new file mode 100644 index 00000000..7bf72b2e --- /dev/null +++ b/src/pld/xilinx_bit.c @@ -0,0 +1,146 @@ +/*************************************************************************** + * Copyright (C) 2006 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "xilinx_bit.h" + +#include "pld.h" +#include "log.h" + +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +int read_section(FILE *input_file, int length_size, char section, u32 *buffer_length, u8 **buffer) +{ + u8 length_buffer[4]; + u32 length; + char section_char; + int read_count; + + if ((length_size != 2) && (length_size != 4)) + { + ERROR("BUG: length_size neither 2 nor 4"); + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if ((read_count = fread(§ion_char, 1, 1, input_file)) != 1) + { + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if (section_char != section) + { + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if ((read_count = fread(length_buffer, 1, length_size, input_file)) != length_size) + { + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if (length_size == 4) + length = be_to_h_u32(length_buffer); + + if (length_size == 2) + length = be_to_h_u16(length_buffer); + + if (buffer_length) + *buffer_length = length; + + *buffer = malloc(length); + + if ((read_count = fread(*buffer, 1, length, input_file)) != length) + { + return ERROR_PLD_FILE_LOAD_FAILED; + } + + return ERROR_OK; +} + +int xilinx_read_bit_file(xilinx_bit_file_t *bit_file, char *filename) +{ + FILE *input_file; + struct stat input_stat; + int read_count; + + if (!filename || !bit_file) + return ERROR_INVALID_ARGUMENTS; + + if (stat(filename, &input_stat) == -1) + { + ERROR("couldn't stat() %s: %s", filename, strerror(errno)); + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if (S_ISDIR(input_stat.st_mode)) + { + ERROR("%s is a directory", filename); + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if (input_stat.st_size == 0){ + ERROR("Empty file %s", filename); + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if (!(input_file = fopen(filename, "rb"))) + { + ERROR("couldn't open %s: %s", filename, strerror(errno)); + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if ((read_count = fread(bit_file->unknown_header, 1, 13, input_file)) != 13) + { + ERROR("couldn't read unknown_header from file '%s'", filename); + return ERROR_PLD_FILE_LOAD_FAILED; + } + + if (read_section(input_file, 2, 'a', NULL, &bit_file->source_file) != ERROR_OK) + return ERROR_PLD_FILE_LOAD_FAILED; + + if (read_section(input_file, 2, 'b', NULL, &bit_file->part_name) != ERROR_OK) + return ERROR_PLD_FILE_LOAD_FAILED; + + if (read_section(input_file, 2, 'c', NULL, &bit_file->date) != ERROR_OK) + return ERROR_PLD_FILE_LOAD_FAILED; + + if (read_section(input_file, 2, 'd', NULL, &bit_file->time) != ERROR_OK) + return ERROR_PLD_FILE_LOAD_FAILED; + + if (read_section(input_file, 4, 'e', &bit_file->length, &bit_file->data) != ERROR_OK) + return ERROR_PLD_FILE_LOAD_FAILED; + + DEBUG("bit_file: %s %s %s,%s %i", bit_file->source_file, bit_file->part_name, + bit_file->date, bit_file->time, bit_file->length); + + fclose(input_file); + + return ERROR_OK; +} -- cgit v1.2.3