diff options
| author | Pavan Kunapuli <pkunapuli@nvidia.com> | 2012-07-16 14:57:35 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-07-25 18:22:06 -0700 |
| commit | 503103dabe8b55358379d4cd3ecd5acac45ebd3d (patch) | |
| tree | 8201c267db8c00381bf1804d9bd1c5d2c086d808 /include/linux | |
| parent | 484a143002681370f7ff6c8c9c07a22cdca9360a (diff) | |
mmc: core: SDXC speed class support
Unlike SDSC and SDHC, for SDXC cards CMD20 needs to be
issued to meet the class performance for speed class
recording. Adding mmc_speed_class_control() which should
be used by an AV recording app/utility before starting
recording on an SDXC card.
Bug 969360
Reviewed-on: http://git-master/r/39394
Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Reviewed-on: http://git-master/r/115685
(cherry picked from commit 04b8d1287a95e1882d956cdf7997015350408a3c)
Change-Id: Id567effb476ee580de3d49b70201ebae5a13360a
Reviewed-on: http://git-master/r/118038
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Naveen Kumar Arepalli <naveenk@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mmc/host.h | 3 | ||||
| -rw-r--r-- | include/linux/mmc/sd.h | 13 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 8c0bf3f2a36f..0e56f1ae7602 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -401,6 +401,9 @@ int mmc_host_enable(struct mmc_host *host); int mmc_host_disable(struct mmc_host *host); int mmc_host_lazy_disable(struct mmc_host *host); int mmc_pm_notify(struct notifier_block *notify_block, unsigned long, void *); +int mmc_speed_class_control(struct mmc_host *host, + unsigned int speed_class_ctrl_arg); + static inline void mmc_set_disable_delay(struct mmc_host *host, unsigned int disable_delay) diff --git a/include/linux/mmc/sd.h b/include/linux/mmc/sd.h index 1ebcf9ba1256..e65bf7c9dab0 100644 --- a/include/linux/mmc/sd.h +++ b/include/linux/mmc/sd.h @@ -19,6 +19,10 @@ #define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */ #define SD_SWITCH_VOLTAGE 11 /* ac R1 */ + /* class 2 */ +#define SD_SEND_TUNING_PATTERN 19 /* adtc R1 */ +#define SD_SPEED_CLASS_CONTROL 20 /* ac R1b */ + /* class 10 */ #define SD_SWITCH 6 /* adtc [31:0] See below R1 */ @@ -91,4 +95,13 @@ #define SD_SWITCH_ACCESS_DEF 0 #define SD_SWITCH_ACCESS_HS 1 +/* + * SD_SPEED_CLASS_CONTROL definitions + */ +#define SD_SPEED_CLASS_CONTROL_START_REC 0x0 +#define SD_SPEED_CLASS_CONTROL_CREATE_DIR 0x1 +#define SD_SPEED_CLASS_CONTROL_UPDATE_CI 0x4 + + #endif /* LINUX_MMC_SD_H */ + |