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| author | Jaehoon Chung <jh80.chung@samsung.com> | 2011-10-18 01:26:42 -0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 16:32:29 -0400 |
| commit | eb0d8f135b6730d6d0324a064664d121334290e7 (patch) | |
| tree | 74876f5d20163bb5e9b185d9357237e1f22a2262 /include | |
| parent | 881d1c25f765938a95def5afe39486ce39f9fc96 (diff) | |
| download | lwn-eb0d8f135b6730d6d0324a064664d121334290e7.tar.gz lwn-eb0d8f135b6730d6d0324a064664d121334290e7.zip | |
mmc: core: support HPI send command
HPI command is defined in eMMC4.41.
This feature is important for eMMC4.5 devices.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/card.h | 4 | ||||
| -rw-r--r-- | include/linux/mmc/core.h | 1 | ||||
| -rw-r--r-- | include/linux/mmc/mmc.h | 3 |
3 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 32492b78aed6..1684d92a8015 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -69,10 +69,14 @@ struct mmc_ext_csd { unsigned long long enhanced_area_offset; /* Units: Byte */ unsigned int enhanced_area_size; /* Units: KB */ unsigned int cache_size; /* Units: KB */ + bool hpi_en; /* HPI enablebit */ + bool hpi; /* HPI support bit */ + unsigned int hpi_cmd; /* cmd used as HPI */ u8 raw_partition_support; /* 160 */ u8 raw_erased_mem_count; /* 181 */ u8 raw_ext_csd_structure; /* 194 */ u8 raw_card_type; /* 196 */ + u8 out_of_int_time; /* 198 */ u8 raw_s_a_timeout; /* 217 */ u8 raw_hc_erase_gap_size; /* 221 */ u8 raw_erase_timeout_mult; /* 223 */ diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index 67bac374d122..174a844a5dda 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -136,6 +136,7 @@ struct mmc_async_req; extern struct mmc_async_req *mmc_start_req(struct mmc_host *, struct mmc_async_req *, int *); +extern int mmc_interrupt_hpi(struct mmc_card *); extern void mmc_wait_for_req(struct mmc_host *, struct mmc_request *); extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int); extern int mmc_app_cmd(struct mmc_host *, struct mmc_card *); diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 160e4c5bdae0..0e7135697d11 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -276,6 +276,7 @@ struct _mmc_csd { #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */ #define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */ #define EXT_CSD_PARTITION_SUPPORT 160 /* RO */ +#define EXT_CSD_HPI_MGMT 161 /* R/W */ #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ #define EXT_CSD_SANITIZE_START 165 /* W */ #define EXT_CSD_WR_REL_PARAM 166 /* RO */ @@ -288,6 +289,7 @@ struct _mmc_csd { #define EXT_CSD_REV 192 /* RO */ #define EXT_CSD_STRUCTURE 194 /* RO */ #define EXT_CSD_CARD_TYPE 196 /* RO */ +#define EXT_CSD_OUT_OF_INTERRUPT_TIME 198 /* RO */ #define EXT_CSD_PART_SWITCH_TIME 199 /* RO */ #define EXT_CSD_PWR_CL_52_195 200 /* RO */ #define EXT_CSD_PWR_CL_26_195 201 /* RO */ @@ -311,6 +313,7 @@ struct _mmc_csd { #define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */ #define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */ #define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */ +#define EXT_CSD_HPI_FEATURES 503 /* RO */ /* * EXT_CSD field definitions |