mutex_unlock(&open_lock);
}
-static int mmc_blk_open(struct inode *inode, struct file *filp)
+static int mmc_blk_open(struct block_device *bdev, fmode_t mode)
{
- struct mmc_blk_data *md;
+ struct mmc_blk_data *md = mmc_blk_get(bdev->bd_disk);
int ret = -ENXIO;
- md = mmc_blk_get(inode->i_bdev->bd_disk);
if (md) {
if (md->usage == 2)
- check_disk_change(inode->i_bdev);
+ check_disk_change(bdev);
ret = 0;
- if ((filp->f_mode & FMODE_WRITE) && md->read_only) {
+ if ((mode & FMODE_WRITE) && md->read_only) {
mmc_blk_put(md);
ret = -EROFS;
}
return ret;
}
-static int mmc_blk_release(struct inode *inode, struct file *filp)
+static int mmc_blk_release(struct gendisk *disk, fmode_t mode)
{
- struct mmc_blk_data *md = inode->i_bdev->bd_disk->private_data;
+ struct mmc_blk_data *md = disk->private_data;
mmc_blk_put(md);
return 0;
static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
{
int err;
- u32 blocks;
+ __be32 blocks;
struct mmc_request mrq;
struct mmc_command cmd;
if (cmd.error || data.error)
return (u32)-1;
- blocks = ntohl(blocks);
+ return ntohl(blocks);
+}
+
+static u32 get_card_status(struct mmc_card *card, struct request *req)
+{
+ struct mmc_command cmd;
+ int err;
- return blocks;
+ memset(&cmd, 0, sizeof(struct mmc_command));
+ cmd.opcode = MMC_SEND_STATUS;
+ if (!mmc_host_is_spi(card->host))
+ cmd.arg = card->rca << 16;
+ cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
+ err = mmc_wait_for_cmd(card->host, &cmd, 0);
+ if (err)
+ printk(KERN_ERR "%s: error %d sending status comand",
+ req->rq_disk->disk_name, err);
+ return cmd.resp[0];
}
static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
do {
struct mmc_command cmd;
- u32 readcmd, writecmd;
+ u32 readcmd, writecmd, status = 0;
memset(&brq, 0, sizeof(struct mmc_blk_request));
brq.mrq.cmd = &brq.cmd;
* until later as we need to wait for the card to leave
* programming mode even when things go wrong.
*/
+ if (brq.cmd.error || brq.data.error || brq.stop.error)
+ status = get_card_status(card, req);
+
if (brq.cmd.error) {
- printk(KERN_ERR "%s: error %d sending read/write command\n",
- req->rq_disk->disk_name, brq.cmd.error);
+ printk(KERN_ERR "%s: error %d sending read/write "
+ "command, response %#x, card status %#x\n",
+ req->rq_disk->disk_name, brq.cmd.error,
+ brq.cmd.resp[0], status);
}
if (brq.data.error) {
- printk(KERN_ERR "%s: error %d transferring data\n",
- req->rq_disk->disk_name, brq.data.error);
+ if (brq.data.error == -ETIMEDOUT && brq.mrq.stop)
+ /* 'Stop' response contains card status */
+ status = brq.mrq.stop->resp[0];
+ printk(KERN_ERR "%s: error %d transferring data,"
+ " sector %u, nr %u, card status %#x\n",
+ req->rq_disk->disk_name, brq.data.error,
+ (unsigned)req->sector,
+ (unsigned)req->nr_sectors, status);
}
if (brq.stop.error) {
- printk(KERN_ERR "%s: error %d sending stop command\n",
- req->rq_disk->disk_name, brq.stop.error);
+ printk(KERN_ERR "%s: error %d sending stop command, "
+ "response %#x, card status %#x\n",
+ req->rq_disk->disk_name, brq.stop.error,
+ brq.stop.resp[0], status);
}
if (!mmc_host_is_spi(card->host) && rq_data_dir(req) != READ) {