- 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

1 files changed, 146 insertions, 0 deletions

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 <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+
+#include <sys/time.h>
+#include <time.h>
+
+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(&section_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;
+}