diff options
Diffstat (limited to 'drivers/scsi/ufs/ufs.h')
| -rw-r--r-- | drivers/scsi/ufs/ufs.h | 96 |
1 files changed, 89 insertions, 7 deletions
diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 51b5e3f72bc..50d32f16ece 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -40,6 +40,10 @@ #include <linux/types.h> #define MAX_CDB_SIZE 16 +#define GENERAL_UPIU_REQUEST_SIZE 32 +#define QUERY_DESC_MAX_SIZE 256 +#define QUERY_OSF_SIZE (GENERAL_UPIU_REQUEST_SIZE - \ + (sizeof(struct utp_upiu_header))) #define UPIU_HEADER_DWORD(byte3, byte2, byte1, byte0)\ cpu_to_be32((byte3 << 24) | (byte2 << 16) |\ @@ -65,7 +69,7 @@ enum { UPIU_TRANSACTION_COMMAND = 0x01, UPIU_TRANSACTION_DATA_OUT = 0x02, UPIU_TRANSACTION_TASK_REQ = 0x04, - UPIU_TRANSACTION_QUERY_REQ = 0x26, + UPIU_TRANSACTION_QUERY_REQ = 0x16, }; /* UTP UPIU Transaction Codes Target to Initiator */ @@ -94,8 +98,19 @@ enum { UPIU_TASK_ATTR_ACA = 0x03, }; -/* UTP QUERY Transaction Specific Fields OpCode */ +/* UPIU Query request function */ enum { + UPIU_QUERY_FUNC_STANDARD_READ_REQUEST = 0x01, + UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST = 0x81, +}; + +/* Flag idn for Query Requests*/ +enum flag_idn { + QUERY_FLAG_IDN_FDEVICEINIT = 0x01, +}; + +/* UTP QUERY Transaction Specific Fields OpCode */ +enum query_opcode { UPIU_QUERY_OPCODE_NOP = 0x0, UPIU_QUERY_OPCODE_READ_DESC = 0x1, UPIU_QUERY_OPCODE_WRITE_DESC = 0x2, @@ -107,6 +122,21 @@ enum { UPIU_QUERY_OPCODE_TOGGLE_FLAG = 0x8, }; +/* Query response result code */ +enum { + QUERY_RESULT_SUCCESS = 0x00, + QUERY_RESULT_NOT_READABLE = 0xF6, + QUERY_RESULT_NOT_WRITEABLE = 0xF7, + QUERY_RESULT_ALREADY_WRITTEN = 0xF8, + QUERY_RESULT_INVALID_LENGTH = 0xF9, + QUERY_RESULT_INVALID_VALUE = 0xFA, + QUERY_RESULT_INVALID_SELECTOR = 0xFB, + QUERY_RESULT_INVALID_INDEX = 0xFC, + QUERY_RESULT_INVALID_IDN = 0xFD, + QUERY_RESULT_INVALID_OPCODE = 0xFE, + QUERY_RESULT_GENERAL_FAILURE = 0xFF, +}; + /* UTP Transfer Request Command Type (CT) */ enum { UPIU_COMMAND_SET_TYPE_SCSI = 0x0, @@ -121,9 +151,10 @@ enum { #define UPIU_RSP_CODE_OFFSET 8 enum { - MASK_SCSI_STATUS = 0xFF, - MASK_TASK_RESPONSE = 0xFF00, - MASK_RSP_UPIU_RESULT = 0xFFFF, + MASK_SCSI_STATUS = 0xFF, + MASK_TASK_RESPONSE = 0xFF00, + MASK_RSP_UPIU_RESULT = 0xFFFF, + MASK_QUERY_DATA_SEG_LEN = 0xFFFF, }; /* Task management service response */ @@ -157,13 +188,40 @@ struct utp_upiu_cmd { }; /** + * struct utp_upiu_query - upiu request buffer structure for + * query request. + * @opcode: command to perform B-0 + * @idn: a value that indicates the particular type of data B-1 + * @index: Index to further identify data B-2 + * @selector: Index to further identify data B-3 + * @reserved_osf: spec reserved field B-4,5 + * @length: number of descriptor bytes to read/write B-6,7 + * @value: Attribute value to be written DW-5 + * @reserved: spec reserved DW-6,7 + */ +struct utp_upiu_query { + u8 opcode; + u8 idn; + u8 index; + u8 selector; + u16 reserved_osf; + u16 length; + u32 value; + u32 reserved[2]; +}; + +/** * struct utp_upiu_req - general upiu request structure * @header:UPIU header structure DW-0 to DW-2 * @sc: fields structure for scsi command DW-3 to DW-7 + * @qr: fields structure for query request DW-3 to DW-7 */ struct utp_upiu_req { struct utp_upiu_header header; - struct utp_upiu_cmd sc; + union { + struct utp_upiu_cmd sc; + struct utp_upiu_query qr; + }; }; /** @@ -184,10 +242,14 @@ struct utp_cmd_rsp { * struct utp_upiu_rsp - general upiu response structure * @header: UPIU header structure DW-0 to DW-2 * @sr: fields structure for scsi command DW-3 to DW-12 + * @qr: fields structure for query request DW-3 to DW-7 */ struct utp_upiu_rsp { struct utp_upiu_header header; - struct utp_cmd_rsp sr; + union { + struct utp_cmd_rsp sr; + struct utp_upiu_query qr; + }; }; /** @@ -220,4 +282,24 @@ struct utp_upiu_task_rsp { u32 reserved[3]; }; +/** + * struct ufs_query_req - parameters for building a query request + * @query_func: UPIU header query function + * @upiu_req: the query request data + */ +struct ufs_query_req { + u8 query_func; + struct utp_upiu_query upiu_req; +}; + +/** + * struct ufs_query_resp - UPIU QUERY + * @response: device response code + * @upiu_res: query response data + */ +struct ufs_query_res { + u8 response; + struct utp_upiu_query upiu_res; +}; + #endif /* End of Header */ |