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/*
* Copyright (c) 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <image.h>
#include <android_image.h>
static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1];
int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify,
ulong *os_data, ulong *os_len)
{
/*
* Not all Android tools use the id field for signing the image with
* sha1 (or anything) so we don't check it. It is not obvious that the
* string is null terminated so we take care of this.
*/
strncpy(andr_tmp_str, hdr->name, ANDR_BOOT_NAME_SIZE);
andr_tmp_str[ANDR_BOOT_NAME_SIZE] = '\0';
if (strlen(andr_tmp_str))
printf("Android's image name: %s\n", andr_tmp_str);
printf("Kernel load addr 0x%08x size %u KiB\n",
hdr->kernel_addr, DIV_ROUND_UP(hdr->kernel_size, 1024));
strncpy(andr_tmp_str, hdr->cmdline, ANDR_BOOT_ARGS_SIZE);
andr_tmp_str[ANDR_BOOT_ARGS_SIZE] = '\0';
if (strlen(andr_tmp_str)) {
printf("Kernel command line: %s\n", andr_tmp_str);
setenv("bootargs", andr_tmp_str);
}
if (hdr->ramdisk_size)
printf("RAM disk load addr 0x%08x size %u KiB\n",
hdr->ramdisk_addr,
DIV_ROUND_UP(hdr->ramdisk_size, 1024));
if (os_data) {
*os_data = (ulong)hdr;
*os_data += hdr->page_size;
}
if (os_len)
*os_len = hdr->kernel_size;
return 0;
}
int android_image_check_header(const struct andr_img_hdr *hdr)
{
return memcmp(ANDR_BOOT_MAGIC, hdr->magic, ANDR_BOOT_MAGIC_SIZE);
}
ulong android_image_get_end(const struct andr_img_hdr *hdr)
{
u32 size = 0;
/*
* The header takes a full page, the remaining components are aligned
* on page boundary
*/
size += hdr->page_size;
size += ALIGN(hdr->kernel_size, hdr->page_size);
size += ALIGN(hdr->ramdisk_size, hdr->page_size);
size += ALIGN(hdr->second_size, hdr->page_size);
return size;
}
ulong android_image_get_kload(const struct andr_img_hdr *hdr)
{
return hdr->kernel_addr;
}
int android_image_get_ramdisk(const struct andr_img_hdr *hdr,
ulong *rd_data, ulong *rd_len)
{
if (!hdr->ramdisk_size)
return -1;
*rd_data = (unsigned long)hdr;
*rd_data += hdr->page_size;
*rd_data += ALIGN(hdr->kernel_size, hdr->page_size);
*rd_len = hdr->ramdisk_size;
return 0;
}