static int mmc_file_op(enum dfu_mmc_op op, struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
{
char cmd_buf[DFU_CMD_BUF_SIZE];
char *str_env;
int ret;
switch (dfu->layout) {
case DFU_FS_FAT:
sprintf(cmd_buf, "fat%s mmc %d:%d 0x%x %s %lx",
op == DFU_OP_READ ? "load" : "write",
dfu->data.mmc.dev, dfu->data.mmc.part,
(unsigned int) buf, dfu->name, *len);
if (op == DFU_OP_READ && offset != 0)
sprintf(cmd_buf + strlen(cmd_buf), " %llx", offset);
break;
case DFU_FS_EXT4:
if (offset != 0) {
debug("%s: Offset value %llx != 0 not supported!\n",
__func__, offset);
return -1;
}
sprintf(cmd_buf, "ext4%s mmc %d:%d /%s 0x%x %ld",
op == DFU_OP_READ ? "load" : "write",
dfu->data.mmc.dev, dfu->data.mmc.part,
dfu->name, (unsigned int) buf, *len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
return -1;
}
debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
ret = run_command(cmd_buf, 0);
if (ret) {
puts("dfu: Read error!\n");
return ret;
}
if (dfu->layout != DFU_RAW_ADDR && op == DFU_OP_READ) {
str_env = getenv("filesize");
if (str_env == NULL) {
puts("dfu: Wrong file size!\n");
return -1;
}
*len = simple_strtoul(str_env, NULL, 16);
}
return ret;
}
static int dfu_read_medium_nand(struct dfu_entity *dfu, u64 offset, void *buf,
long *len)
{
int ret = -1;
switch (dfu->layout) {
case DFU_RAW_ADDR:
ret = nand_block_read(dfu, offset, buf, len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
}
return ret;
}
int dfu_read_medium_mmc(struct dfu_entity *dfu, void *buf, long *len)
{
int ret = -1;
switch (dfu->layout) {
case DFU_RAW_ADDR:
ret = mmc_block_read(dfu, buf, len);
break;
case DFU_FS_FAT:
ret = mmc_file_read(dfu, buf, len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
}
return ret;
}
int dfu_write_medium_mmc(struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
{
int ret = -1;
switch (dfu->layout) {
case DFU_RAW_ADDR:
ret = mmc_block_op(DFU_OP_WRITE, dfu, offset, buf, len);
break;
case DFU_FS_FAT:
case DFU_FS_EXT4:
ret = mmc_file_buffer(dfu, buf, len);
break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
}
return ret;
}