* track of the current selected device partition.
*/
unsigned int part_curr;
- struct device_attribute force_ro;
- struct device_attribute power_ro_lock;
int area_type;
/* debugfs files (only in main mmc_blk_data) */
return count;
}
+static DEVICE_ATTR(ro_lock_until_next_power_on, 0,
+ power_ro_lock_show, power_ro_lock_store);
+
static ssize_t force_ro_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
return ret;
}
+static DEVICE_ATTR(force_ro, 0644, force_ro_show, force_ro_store);
+
+static struct attribute *mmc_disk_attrs[] = {
+ &dev_attr_force_ro.attr,
+ &dev_attr_ro_lock_until_next_power_on.attr,
+ NULL,
+};
+
+static umode_t mmc_disk_attrs_is_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev));
+ umode_t mode = a->mode;
+
+ if (a == &dev_attr_ro_lock_until_next_power_on.attr &&
+ (md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
+ md->queue.card->ext_csd.boot_ro_lockable) {
+ mode = S_IRUGO;
+ if (!(md->queue.card->ext_csd.boot_ro_lock &
+ EXT_CSD_BOOT_WP_B_PWR_WP_DIS))
+ mode |= S_IWUSR;
+ }
+
+ mmc_blk_put(md);
+ return mode;
+}
+
+static const struct attribute_group mmc_disk_attr_group = {
+ .is_visible = mmc_disk_attrs_is_visible,
+ .attrs = mmc_disk_attrs,
+};
+
+static const struct attribute_group *mmc_disk_attr_groups[] = {
+ &mmc_disk_attr_group,
+ NULL,
+};
+
static int mmc_blk_open(struct block_device *bdev, fmode_t mode)
{
struct mmc_blk_data *md = mmc_blk_get(bdev->bd_disk);
}
#endif
+static int mmc_blk_alternative_gpt_sector(struct gendisk *disk,
+ sector_t *sector)
+{
+ struct mmc_blk_data *md;
+ int ret;
+
+ md = mmc_blk_get(disk);
+ if (!md)
+ return -EINVAL;
+
+ if (md->queue.card)
+ ret = mmc_card_alternative_gpt_sector(md->queue.card, sector);
+ else
+ ret = -ENODEV;
+
+ mmc_blk_put(md);
+
+ return ret;
+}
+
static const struct block_device_operations mmc_bdops = {
.open = mmc_blk_open,
.release = mmc_blk_release,
#ifdef CONFIG_COMPAT
.compat_ioctl = mmc_blk_compat_ioctl,
#endif
+ .alternative_gpt_sector = mmc_blk_alternative_gpt_sector,
};
static int mmc_blk_part_switch_pre(struct mmc_card *card,
sector_t size,
bool default_ro,
const char *subname,
- int area_type)
+ int area_type,
+ unsigned int part_type)
{
struct mmc_blk_data *md;
int devidx, ret;
kref_init(&md->kref);
md->queue.blkdata = md;
+ md->part_type = part_type;
md->disk->major = MMC_BLOCK_MAJOR;
md->disk->minors = perdev_minors;
md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
cap_str, md->read_only ? "(ro)" : "");
+ /* used in ->open, must be set before add_disk: */
+ if (area_type == MMC_BLK_DATA_AREA_MAIN)
+ dev_set_drvdata(&card->dev, md);
+ device_add_disk(md->parent, md->disk, mmc_disk_attr_groups);
return md;
err_kfree:
}
return mmc_blk_alloc_req(card, &card->dev, size, false, NULL,
- MMC_BLK_DATA_AREA_MAIN);
+ MMC_BLK_DATA_AREA_MAIN, 0);
}
static int mmc_blk_alloc_part(struct mmc_card *card,
struct mmc_blk_data *part_md;
part_md = mmc_blk_alloc_req(card, disk_to_dev(md->disk), size, default_ro,
- subname, area_type);
+ subname, area_type, part_type);
if (IS_ERR(part_md))
return PTR_ERR(part_md);
- part_md->part_type = part_type;
list_add(&part_md->part, &md->part);
return 0;
static void mmc_blk_remove_req(struct mmc_blk_data *md)
{
- struct mmc_card *card;
-
- if (md) {
- /*
- * Flush remaining requests and free queues. It
- * is freeing the queue that stops new requests
- * from being accepted.
- */
- card = md->queue.card;
- if (md->disk->flags & GENHD_FL_UP) {
- device_remove_file(disk_to_dev(md->disk), &md->force_ro);
- if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
- card->ext_csd.boot_ro_lockable)
- device_remove_file(disk_to_dev(md->disk),
- &md->power_ro_lock);
-
- del_gendisk(md->disk);
- }
- mmc_cleanup_queue(&md->queue);
- mmc_blk_put(md);
- }
+ /*
+ * Flush remaining requests and free queues. It is freeing the queue
+ * that stops new requests from being accepted.
+ */
+ del_gendisk(md->disk);
+ mmc_cleanup_queue(&md->queue);
+ mmc_blk_put(md);
}
static void mmc_blk_remove_parts(struct mmc_card *card,
}
}
-static int mmc_add_disk(struct mmc_blk_data *md)
-{
- int ret;
- struct mmc_card *card = md->queue.card;
-
- device_add_disk(md->parent, md->disk, NULL);
- md->force_ro.show = force_ro_show;
- md->force_ro.store = force_ro_store;
- sysfs_attr_init(&md->force_ro.attr);
- md->force_ro.attr.name = "force_ro";
- md->force_ro.attr.mode = S_IRUGO | S_IWUSR;
- ret = device_create_file(disk_to_dev(md->disk), &md->force_ro);
- if (ret)
- goto force_ro_fail;
-
- if ((md->area_type & MMC_BLK_DATA_AREA_BOOT) &&
- card->ext_csd.boot_ro_lockable) {
- umode_t mode;
-
- if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_DIS)
- mode = S_IRUGO;
- else
- mode = S_IRUGO | S_IWUSR;
-
- md->power_ro_lock.show = power_ro_lock_show;
- md->power_ro_lock.store = power_ro_lock_store;
- sysfs_attr_init(&md->power_ro_lock.attr);
- md->power_ro_lock.attr.mode = mode;
- md->power_ro_lock.attr.name =
- "ro_lock_until_next_power_on";
- ret = device_create_file(disk_to_dev(md->disk),
- &md->power_ro_lock);
- if (ret)
- goto power_ro_lock_fail;
- }
- return ret;
-
-power_ro_lock_fail:
- device_remove_file(disk_to_dev(md->disk), &md->force_ro);
-force_ro_fail:
- del_gendisk(md->disk);
-
- return ret;
-}
-
#ifdef CONFIG_DEBUG_FS
static int mmc_dbg_card_status_get(void *data, u64 *val)
static int mmc_blk_probe(struct mmc_card *card)
{
- struct mmc_blk_data *md, *part_md;
+ struct mmc_blk_data *md;
int ret = 0;
/*
if (ret)
goto out;
- dev_set_drvdata(&card->dev, md);
-
- ret = mmc_add_disk(md);
- if (ret)
- goto out;
-
- list_for_each_entry(part_md, &md->part, part) {
- ret = mmc_add_disk(part_md);
- if (ret)
- goto out;
- }
-
/* Add two debugfs entries */
mmc_blk_add_debugfs(card, md);
projects / linux-2.6-microblaze.git / blobdiff