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flash.c
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flash.c
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/*
* Copyright 2014 Dirk Eibach <[email protected]>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <errno.h>
#define PACKAGE
#include <bfd.h>
#include "c2tool.h"
struct flash_section_data {
struct c2tool_state *state;
unsigned int offset;
};
static void flash_section(bfd * ibfd, sec_ptr isection, void *arg)
{
bfd_size_type size = bfd_section_size(ibfd, isection);
bfd_vma vma = bfd_section_vma(ibfd, isection);
bfd_vma lma = bfd_section_lma(ibfd, isection);
const char *section_name = bfd_section_name(ibfd, isection);
bfd_byte *data = 0;
struct flash_section_data *fsdata = arg;
struct c2tool_state *state = fsdata->state;
unsigned int offset = fsdata->offset;
unsigned int flash_addr = lma + offset;
printf("section %s: lma %016" BFD_VMA_FMT "x, size %d -> flash %08x\n",
section_name, lma, size, flash_addr);
if (!bfd_get_full_section_contents (ibfd,isection, &data)) {
fprintf(stderr, "Reading section failed\n");
return;
}
while (size) {
int res;
res = flash_chunk(state, flash_addr, size, data);
if (res < 0) {
fprintf(stderr, "flash chunk at %08x failed.\n", flash_addr);
break;
}
flash_addr += res;
size -= res;
data += res;
}
}
static int c2_flash_file(struct c2tool_state *state, const char *filename, const char *target, unsigned int offset)
{
bfd *ibfd;
struct flash_section_data fsdata = { state, offset };
ibfd = bfd_openr(filename, target);
if (ibfd == NULL) {
fprintf(stderr, "%s\n", bfd_errmsg(bfd_get_error()));
return -EINVAL;
}
if (!bfd_check_format(ibfd, bfd_object)) {
fprintf(stderr, "%s\n", bfd_errmsg(bfd_get_error()));
return -EINVAL;
}
bfd_map_over_sections(ibfd, flash_section, &fsdata);
return 0;
}
int handle_flash(struct c2tool_state *state, int argc, char **argv)
{
unsigned char buf[256];
unsigned int offset = 0;
char *end;
char *target = NULL;
char *filename;
while (argc >= 3) {
if (strcmp(argv[0], "target") == 0) {
argc--;
argv++;
if (!argc)
return 1;
target = argv[0];
argv++;
argc--;
} else if (strcmp(argv[0], "adjust-start") == 0) {
argc--;
argv++;
if (!argc)
return 1;
offset = strtoul(argv[0], &end, 0);
if (*end != '\0')
return 1;
argv++;
argc--;
} else {
break;
}
}
if (argc == 1)
filename = argv[0];
else
return 1;
if (c2family_setup(state) < 0)
return -EIO;
return c2_flash_file(state, filename, target, offset);
}
COMMAND(flash, "[target <bfdname>] [adjust-start <incr>] <file>", handle_flash, "Write file to flash memory of connected device.");