Function fal_partition_read

components/fal/src/fal_partition.c:409–437

* read data from partition * * @param part partition * @param addr relative address for partition * @param buf read buffer * @param size read size * * @return >= 0: successful read data size * -1: error */

 *           -1: error
 */
int fal_partition_read(const struct fal_partition *part, rt_uint32_t addr, rt_uint8_t *buf, rt_size_t size)
{
    int ret = 0;
    const struct fal_flash_dev *flash_dev = NULL;

    RT_ASSERT(part);
    RT_ASSERT(buf);

    if (addr + size > part->len)
    {
        LOG_E("Partition read error! Partition(%s) address(0x%08x) out of bound(0x%08x).", part->name, addr + size, part->len);
        return -1;
    }

    flash_dev = flash_device_find_by_part(part);
    if (flash_dev == NULL)
    {
        LOG_E("Partition read error! Don't found flash device(%s) of the partition(%s).", part->flash_name, part->name);
        return -1;
    }

    ret = flash_dev->ops.read(part->offset + addr, buf, size);
    if (ret < 0)
    {
        LOG_E("Partition read error! Flash device(%s) read error!", part->flash_name);
    }

    return ret;
}

/**
 * write data to partition