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/*
* (C) Copyright 2010
* Linaro LTD, www.linaro.org
* Author: John Rigby <john.rigby@linaro.org>
* Based on TI's signGP.c
*
* (C) Copyright 2009
* Stefano Babic, DENX Software Engineering, sbabic@denx.de.
*
* (C) Copyright 2008
* Marvell Semiconductor <www.marvell.com>
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*/
/* Required to obtain the getline prototype from stdio.h */
#define _GNU_SOURCE
#include "mkimage.h"
#include <image.h>
#include "omapimage.h"
/* Header size is CH header rounded up to 512 bytes plus GP header */
#define OMAP_CH_HDR_SIZE 512
#define OMAP_GP_HDR_SIZE (sizeof(struct gp_header))
#define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE+OMAP_GP_HDR_SIZE)
static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];
static int omapimage_check_image_types(uint8_t type)
{
if (type == IH_TYPE_OMAPIMAGE)
return EXIT_SUCCESS;
else {
fprintf(stderr, "Unknown OMAP image type - %x", type);
return EXIT_FAILURE;
}
}
/*
* Only the simplest image type is currently supported:
* TOC pointing to CHSETTINGS
* TOC terminator
* CHSETTINGS
*
* padding to OMAP_CH_HDR_SIZE bytes
*
* gp header
* size
* load_addr
*/
static int valid_gph_size(uint32_t size)
{
return size;
}
static int valid_gph_load_addr(uint32_t load_addr)
{
return load_addr;
}
static int omapimage_verify_header(unsigned char *ptr, int image_size,
struct mkimage_params *params)
{
struct ch_toc *toc = (struct ch_toc *)ptr;
struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
uint32_t offset, size;
while (toc->section_offset != 0xffffffff
&& toc->section_size != 0xffffffff) {
offset = toc->section_offset;
size = toc->section_size;
if (!offset || !size)
return -1;
if (offset >= OMAP_CH_HDR_SIZE ||
offset+size >= OMAP_CH_HDR_SIZE)
return -1;
toc++;
}
if (!valid_gph_size(gph->size))
return -1;
if (!valid_gph_load_addr(gph->load_addr))
return -1;
return 0;
}
static void omapimage_print_section(struct ch_settings *chs)
{
const char *section_name;
if (chs->section_key)
section_name = "CHSETTINGS";
else
section_name = "UNKNOWNKEY";
printf("%s (%x) "
"valid:%x "
"version:%x "
"reserved:%x "
"flags:%x\n",
section_name,
chs->section_key,
chs->valid,
chs->version,
chs->reserved,
chs->flags);
}
static void omapimage_print_header(const void *ptr)
{
const struct ch_toc *toc = (struct ch_toc *)ptr;
const struct gp_header *gph =
(struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
uint32_t offset, size;
while (toc->section_offset != 0xffffffff
&& toc->section_size != 0xffffffff) {
offset = toc->section_offset;
size = toc->section_size;
if (offset >= OMAP_CH_HDR_SIZE ||
offset+size >= OMAP_CH_HDR_SIZE)
exit(EXIT_FAILURE);
printf("Section %s offset %x length %x\n",
toc->section_name,
toc->section_offset,
toc->section_size);
omapimage_print_section((struct ch_settings *)(ptr+offset));
toc++;
}
if (!valid_gph_size(gph->size)) {
fprintf(stderr,
"Error: invalid image size %x\n",
gph->size);
exit(EXIT_FAILURE);
}
if (!valid_gph_load_addr(gph->load_addr)) {
fprintf(stderr,
"Error: invalid image load address %x\n",
gph->size);
exit(EXIT_FAILURE);
}
printf("GP Header: Size %x LoadAddr %x\n",
gph->size, gph->load_addr);
}
static int toc_offset(void *hdr, void *member)
{
return member - hdr;
}
static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd,
struct mkimage_params *params)
{
struct ch_toc *toc = (struct ch_toc *)ptr;
struct ch_settings *chs = (struct ch_settings *)
(ptr + 2 * sizeof(*toc));
struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE);
toc->section_offset = toc_offset(ptr, chs);
toc->section_size = sizeof(struct ch_settings);
strcpy((char *)toc->section_name, "CHSETTINGS");
chs->section_key = KEY_CHSETTINGS;
chs->valid = 0;
chs->version = 1;
chs->reserved = 0;
chs->flags = 0;
toc++;
memset(toc, 0xff, sizeof(*toc));
gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE;
gph->load_addr = params->addr;
}
int omapimage_check_params(struct mkimage_params *params)
{
return (params->dflag && (params->fflag || params->lflag)) ||
(params->fflag && (params->dflag || params->lflag)) ||
(params->lflag && (params->dflag || params->fflag));
}
/*
* omapimage parameters
*/
static struct image_type_params omapimage_params = {
.name = "TI OMAP CH/GP Boot Image support",
.header_size = OMAP_FILE_HDR_SIZE,
.hdr = (void *)&omapimage_header,
.check_image_type = omapimage_check_image_types,
.verify_header = omapimage_verify_header,
.print_header = omapimage_print_header,
.set_header = omapimage_set_header,
.check_params = omapimage_check_params,
};
void init_omap_image_type(void)
{
mkimage_register(&omapimage_params);
}
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