u-boot/common/avb_verify.c

11 #include <part.h>
307 static unsigned long mmc_read_and_flush(struct mmc_part *part,
317 	if (start < part->info.start) {
321 	if ((start + sectors) > (part->info.start + part->info.size)) {
322 		sectors = part->info.start + part->info.size - start;
336 		if (sectors > buf_size / part->info.blksz)
337 			sectors = buf_size / part->info.blksz;
342 	blks = blk_dread(part->mmc_blk,
345 	flush_cache((ulong)tmp_buf, sectors * part->info.blksz);
348 		memcpy(buffer, tmp_buf, sectors * part->info.blksz);
353 static unsigned long mmc_write(struct mmc_part *part, lbaint_t start,
360 	if (start < part->info.start) {
364 	if ((start + sectors) > (part->info.start + part->info.size)) {
365 		sectors = part->info.start + part->info.size - start;
374 		if (sectors > buf_size / part->info.blksz)
375 			sectors = buf_size / part->info.blksz;
377 		memcpy(tmp_buf, buffer, sectors * part->info.blksz);
382 	return blk_dwrite(part->mmc_blk,
391 	struct mmc_part *part;
394 	part = malloc(sizeof(struct mmc_part));
395 	if (!part)
399 	part->mmc = find_mmc_device(dev_num);
400 	if (!part->mmc) {
405 	ret = mmc_init(part->mmc);
412 	if (IS_MMC(part->mmc)) {
413 		ret = mmc_switch_part(part->mmc, part_num);
415 			printf("%s: MMC part switch failed, err = %d\n",
421 	mmc_blk = mmc_get_blk_desc(part->mmc);
427 	ret = part_get_info_by_name(mmc_blk, partition, &part->info);
433 	part->dev_num = dev_num;
434 	part->mmc_blk = mmc_blk;
436 	return part;
438 	free(part);
451 	struct mmc_part *part;
459 	part = get_partition(ops, partition);
460 	if (!part)
463 	if (!part->info.blksz)
466 	start_offset = calc_offset(part, offset);
468 		start_sector = start_offset / part->info.blksz;
469 		sectors = num_bytes / part->info.blksz;
471 		if (start_offset % part->info.blksz ||
472 		    num_bytes < part->info.blksz) {
474 			if (start_offset % part->info.blksz) {
475 				residue = part->info.blksz -
476 					(start_offset % part->info.blksz);
484 				ret = mmc_read_and_flush(part,
485 							 part->info.start +
498 				tmp_buf += (start_offset % part->info.blksz);
501 				ret = mmc_read_and_flush(part,
502 							 part->info.start +
512 					start_offset % part->info.blksz,
515 				ret = mmc_write(part, part->info.start +
533 				ret = mmc_read_and_flush(part,
534 							 part->info.start +
538 				ret = mmc_write(part,
539 						part->info.start +
549 			io_cnt += ret * part->info.blksz;
550 			buffer += ret * part->info.blksz;
551 			start_offset += ret * part->info.blksz;
552 			num_bytes -= ret * part->info.blksz;
862 	struct mmc_part *part;
865 	part = get_partition(ops, partition);
866 	if (!part)
869 	uuid_size = sizeof(part->info.uuid);
873 	memcpy(guid_buf, part->info.uuid, uuid_size);
896 	struct mmc_part *part;
901 	part = get_partition(ops, partition);
902 	if (!part)
905 	*out_size_num_bytes = part->info.blksz * part->info.size;