static LIST_HEAD(dfu_list);
static int dfu_alt_num;
static int alt_num_count;
+static int dfu_checksum_method;
bool dfu_reset(void)
{
return dfu_buf;
}
+static int dfu_get_checksum_method(void)
+{
+ char *s;
+
+ s = getenv("dfu_checksum_method");
+ if (!s)
+ return DFU_NO_CHECKSUM;
+
+ if (!strcmp(s, "crc32")) {
+ debug("%s: DFU checksum method: %s\n", __func__, s);
+ return DFU_CRC32;
+ } else {
+ error("DFU checksum method: %s not supported!\n", s);
+ return -EINVAL;
+ }
+}
+
static int dfu_write_buffer_drain(struct dfu_entity *dfu)
{
long w_size;
if (w_size == 0)
return 0;
- /* update CRC32 */
- dfu->crc = crc32(dfu->crc, dfu->i_buf_start, w_size);
+ if (dfu_checksum_method == DFU_CRC32)
+ dfu->crc = crc32(dfu->crc, dfu->i_buf_start, w_size);
ret = dfu->write_medium(dfu, dfu->offset, dfu->i_buf_start, &w_size);
if (ret)
/* Now try and flush to the medium if needed. */
if (dfu->flush_medium)
ret = dfu->flush_medium(dfu);
- printf("\nDFU complete CRC32: 0x%08x\n", dfu->crc);
+ if (dfu_checksum_method == DFU_CRC32)
+ printf("\nDFU complete CRC32: 0x%08x\n", dfu->crc);
/* clear everything */
dfu_free_buf();
dfu->crc = 0;
/* consume */
if (chunk > 0) {
memcpy(buf, dfu->i_buf, chunk);
- dfu->crc = crc32(dfu->crc, buf, chunk);
+ if (dfu_checksum_method == DFU_CRC32)
+ dfu->crc = crc32(dfu->crc, buf, chunk);
dfu->i_buf += chunk;
dfu->b_left -= chunk;
dfu->r_left -= chunk;
}
if (ret < size) {
- debug("%s: %s CRC32: 0x%x\n", __func__, dfu->name, dfu->crc);
+ if (dfu_checksum_method == DFU_CRC32)
+ debug("%s: %s CRC32: 0x%x\n", __func__, dfu->name,
+ dfu->crc);
puts("\nUPLOAD ... done\nCtrl+C to exit ...\n");
dfu_free_buf();
dfu_alt_num = dfu_find_alt_num(env);
debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num);
+ ret = dfu_get_checksum_method();
+ if (ret < 0)
+ return ret;
+ dfu_checksum_method = ret;
+
dfu = calloc(sizeof(*dfu), dfu_alt_num);
if (!dfu)
return -1;