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| author | Subhash Jadavani <subhashj@codeaurora.org> | 2014-09-25 14:32:25 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-10-01 13:11:20 +0200 |
| commit | da461cec9a1ff0a074cd1db47598ba36a1686ef4 (patch) | |
| tree | b947fe64044eb45b8bdfcc928459de10e5d0ca6a /drivers/scsi/ufs/ufs.h | |
| parent | ufs: add voting support for host controller power (diff) | |
| download | linux-da461cec9a1ff0a074cd1db47598ba36a1686ef4.tar.xz linux-da461cec9a1ff0a074cd1db47598ba36a1686ef4.zip | |
ufs: refactor query descriptor API support
Currently reading query descriptor is more tightened to each
descriptor type. This patch generalize the approach and allows
reading any parameter from any query descriptor.
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/ufs/ufs.h')
| -rw-r--r-- | drivers/scsi/ufs/ufs.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 9bb691962c47..f76a304e7408 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -50,6 +50,8 @@ cpu_to_be32((byte3 << 24) | (byte2 << 16) |\ (byte1 << 8) | (byte0)) +#define UFS_UPIU_MAX_GENERAL_LUN 8 + /* * UFS Protocol Information Unit related definitions */ @@ -129,10 +131,29 @@ enum desc_idn { QUERY_DESC_IDN_RFU_1 = 0x6, QUERY_DESC_IDN_GEOMETRY = 0x7, QUERY_DESC_IDN_POWER = 0x8, - QUERY_DESC_IDN_RFU_2 = 0x9, + QUERY_DESC_IDN_MAX, +}; + +enum desc_header_offset { + QUERY_DESC_LENGTH_OFFSET = 0x00, + QUERY_DESC_DESC_TYPE_OFFSET = 0x01, +}; + +enum ufs_desc_max_size { + QUERY_DESC_DEVICE_MAX_SIZE = 0x1F, + QUERY_DESC_CONFIGURAION_MAX_SIZE = 0x90, + QUERY_DESC_UNIT_MAX_SIZE = 0x23, + QUERY_DESC_INTERCONNECT_MAX_SIZE = 0x06, + /* + * Max. 126 UNICODE characters (2 bytes per character) plus 2 bytes + * of descriptor header. + */ + QUERY_DESC_STRING_MAX_SIZE = 0xFE, + QUERY_DESC_GEOMETRY_MAZ_SIZE = 0x44, + QUERY_DESC_POWER_MAX_SIZE = 0x62, + QUERY_DESC_RFU_MAX_SIZE = 0x00, }; -#define UNIT_DESC_MAX_SIZE 0x22 /* Unit descriptor parameters offsets in bytes*/ enum unit_desc_param { UNIT_DESC_PARAM_LEN = 0x0, |