*/
#define MMC_SHIFT 3
-static int major;
-
/*
* There is one mmc_blk_data per slot.
*/
struct mmc_data data;
};
-static int mmc_blk_prep_rq(struct mmc_queue *mq, struct request *req)
-{
- struct mmc_blk_data *md = mq->data;
- int stat = BLKPREP_OK;
-
- /*
- * If we have no device, we haven't finished initialising.
- */
- if (!md || !mq->card) {
- printk(KERN_ERR "%s: killing request - no device/host\n",
- req->rq_disk->disk_name);
- stat = BLKPREP_KILL;
- }
-
- return stat;
-}
-
static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
{
int err;
cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, 0);
- if ((err != MMC_ERR_NONE) || !(cmd.resp[0] & R1_APP_CMD))
+ if (err || !(cmd.resp[0] & R1_APP_CMD))
return (u32)-1;
memset(&cmd, 0, sizeof(struct mmc_command));
mmc_wait_for_req(card->host, &mrq);
- if (cmd.error != MMC_ERR_NONE || data.error != MMC_ERR_NONE)
+ if (cmd.error || data.error)
return (u32)-1;
blocks = ntohl(blocks);
if (brq.data.blocks > card->host->max_blk_count)
brq.data.blocks = card->host->max_blk_count;
- mmc_set_data_timeout(&brq.data, card, rq_data_dir(req) != READ);
-
/*
* If the host doesn't support multiple block writes, force
* block writes to single block. SD cards are excepted from
brq.data.blocks = 1;
if (brq.data.blocks > 1) {
- brq.data.flags |= MMC_DATA_MULTI;
brq.mrq.stop = &brq.stop;
readcmd = MMC_READ_MULTIPLE_BLOCK;
writecmd = MMC_WRITE_MULTIPLE_BLOCK;
brq.data.flags |= MMC_DATA_WRITE;
}
+ mmc_set_data_timeout(&brq.data, card);
+
brq.data.sg = mq->sg;
- brq.data.sg_len = blk_rq_map_sg(req->q, req, brq.data.sg);
+ brq.data.sg_len = mmc_queue_map_sg(mq);
+
+ mmc_queue_bounce_pre(mq);
if (brq.data.blocks !=
(req->nr_sectors >> (md->block_bits - 9))) {
}
mmc_wait_for_req(card->host, &brq.mrq);
+
+ mmc_queue_bounce_post(mq);
+
if (brq.cmd.error) {
printk(KERN_ERR "%s: error %d sending read/write command\n",
req->rq_disk->disk_name, brq.cmd.error);
return ERR_PTR(-ENOSPC);
__set_bit(devidx, dev_use);
- md = kmalloc(sizeof(struct mmc_blk_data), GFP_KERNEL);
+ md = kzalloc(sizeof(struct mmc_blk_data), GFP_KERNEL);
if (!md) {
ret = -ENOMEM;
goto out;
}
- memset(md, 0, sizeof(struct mmc_blk_data));
/*
* Set the read-only status based on the supported commands
if (ret)
goto err_putdisk;
- md->queue.prep_fn = mmc_blk_prep_rq;
md->queue.issue_fn = mmc_blk_issue_rq;
md->queue.data = md;
- md->disk->major = major;
+ md->disk->major = MMC_BLOCK_MAJOR;
md->disk->first_minor = devidx << MMC_SHIFT;
md->disk->fops = &mmc_bdops;
md->disk->private_data = md;
{
int res = -ENOMEM;
- res = register_blkdev(major, "mmc");
- if (res < 0) {
- printk(KERN_WARNING "Unable to get major %d for MMC media: %d\n",
- major, res);
+ res = register_blkdev(MMC_BLOCK_MAJOR, "mmc");
+ if (res)
goto out;
- }
- if (major == 0)
- major = res;
return mmc_register_driver(&mmc_driver);
static void __exit mmc_blk_exit(void)
{
mmc_unregister_driver(&mmc_driver);
- unregister_blkdev(major, "mmc");
+ unregister_blkdev(MMC_BLOCK_MAJOR, "mmc");
}
module_init(mmc_blk_init);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Multimedia Card (MMC) block device driver");
-module_param(major, int, 0444);
-MODULE_PARM_DESC(major, "specify the major device number for MMC block driver");