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usb/gadget: fastboot: implement sparse format

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- add capability to "fastboot flash" with sparse format images

Signed-off-by: Steve Rae <srae@broadcom.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Steve Rae 2014-08-26 11:47:30 -07:00 • committed by Tom Rini
parent 593cbd93f3
commit e5bf9878ea
2 changed files with 23 additions and 10 deletions
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1
common/Makefile
View file

@ -266,6 +266,7 @@ obj-y += stdio.o
# This option is not just y/n - it can have a numeric value
ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
obj-y += aboot.o
obj-y += fb_mmc.o
endif

32
common/fb_mmc.c
View file

@ -7,16 +7,24 @@
#include <common.h>
#include <fb_mmc.h>
#include <part.h>
#include <aboot.h>
#include <sparse_format.h>
/* The 64 defined bytes plus the '\0' */
#define RESPONSE_LEN (64 + 1)
static char *response_str;
static void fastboot_resp(const char *s)
void fastboot_fail(const char *s)
{
strncpy(response_str, s, RESPONSE_LEN);
response_str[RESPONSE_LEN - 1] = '\0';
strncpy(response_str, "FAIL", 4);
strncat(response_str, s, RESPONSE_LEN - 4 - 1);
}
void fastboot_okay(const char *s)
{
strncpy(response_str, "OKAY", 4);
strncat(response_str, s, RESPONSE_LEN - 4 - 1);
}
static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t *info,
@ -32,7 +40,7 @@ static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t *info,
if (blkcnt > info->size) {
error("too large for partition: '%s'\n", part_name);
fastboot_resp("FAILtoo large for partition");
fastboot_fail("too large for partition");
return;
}
@ -42,13 +50,13 @@ static void write_raw_image(block_dev_desc_t *dev_desc, disk_partition_t *info,
buffer);
if (blks != blkcnt) {
error("failed writing to device %d\n", dev_desc->dev);
fastboot_resp("FAILfailed writing to device");
fastboot_fail("failed writing to device");
return;
}
printf("........ wrote " LBAFU " bytes to '%s'\n", blkcnt * info->blksz,
part_name);
fastboot_resp("OKAY");
fastboot_okay("");
}
void fb_mmc_flash_write(const char *cmd, void *download_buffer,
@ -64,17 +72,21 @@ void fb_mmc_flash_write(const char *cmd, void *download_buffer,
dev_desc = get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
error("invalid mmc device\n");
fastboot_resp("FAILinvalid mmc device");
fastboot_fail("invalid mmc device");
return;
}
ret = get_partition_info_efi_by_name(dev_desc, cmd, &info);
if (ret) {
error("cannot find partition: '%s'\n", cmd);
fastboot_resp("FAILcannot find partition");
fastboot_fail("cannot find partition");
return;
}
write_raw_image(dev_desc, &info, cmd, download_buffer,
download_bytes);
if (is_sparse_image(download_buffer))
write_sparse_image(dev_desc, &info, cmd, download_buffer,
download_bytes);
else
write_raw_image(dev_desc, &info, cmd, download_buffer,
download_bytes);
}