diff options
Diffstat (limited to 'include/scsi.h')
| -rw-r--r-- | include/scsi.h | 126 |
1 files changed, 107 insertions, 19 deletions
diff --git a/include/scsi.h b/include/scsi.h index b47c7463c1..94e1d8ccb2 100644 --- a/include/scsi.h +++ b/include/scsi.h @@ -15,27 +15,47 @@ struct udevice; +/** + * struct scsi_cmd - information about a SCSI command to be processed + * + * @cmd: command + * @sense_buf: for request sense + * @status: SCSI Status + * @target: Target ID + * @lun: Target LUN + * @cmdlen: command len + * @datalen: Total data length + * @pdata: pointer to data + * @msgout: Messge out buffer (NOT USED) + * @msgin: Message in buffer + * @sensecmdlen: Sense command len + * @sensedatalen: Sense data len + * @sensecmd: Sense command + * @contr_stat: Controller Status + * @trans_bytes: tranfered bytes + * @priv: Private value + * @dma_dir: Direction of data structure + */ struct scsi_cmd { - unsigned char cmd[16]; /* command */ - /* for request sense */ - unsigned char sense_buf[64] + unsigned char cmd[16]; + unsigned char sense_buf[64] __attribute__((aligned(ARCH_DMA_MINALIGN))); - unsigned char status; /* SCSI Status */ - unsigned char target; /* Target ID */ - unsigned char lun; /* Target LUN */ - unsigned char cmdlen; /* command len */ - unsigned long datalen; /* Total data length */ - unsigned char * pdata; /* pointer to data */ - unsigned char msgout[12]; /* Messge out buffer (NOT USED) */ - unsigned char msgin[12]; /* Message in buffer */ - unsigned char sensecmdlen; /* Sense command len */ - unsigned long sensedatalen; /* Sense data len */ - unsigned char sensecmd[6]; /* Sense command */ - unsigned long contr_stat; /* Controller Status */ - unsigned long trans_bytes; /* tranfered bytes */ - - unsigned int priv; - enum dma_data_direction dma_dir; + unsigned char status; + unsigned char target; + unsigned char lun; + unsigned char cmdlen; + unsigned long datalen; + unsigned char *pdata; + unsigned char msgout[12]; + unsigned char msgin[12]; + unsigned char sensecmdlen; + unsigned long sensedatalen; + unsigned char sensecmd[6]; + unsigned long contr_stat; + unsigned long trans_bytes; + + unsigned int priv; + enum dma_data_direction dma_dir; }; /*----------------------------------------------------------- @@ -168,6 +188,74 @@ struct scsi_cmd { #define SCSI_WRITE_SAME 0x41 /* Write Same (O) */ /** + * enum scsi_cmd_phase - current phase of the SCSI protocol + * + * @SCSIPH_START: Start phase + * @SCSIPH_DATA: Data phase + * @SCSIPH_STATUS: Status phase + */ +enum scsi_cmd_phase { + SCSIPH_START, + SCSIPH_DATA, + SCSIPH_STATUS, +}; + +/** + * struct scsi_inquiry_resp - holds a SCSI inquiry command + * + * @type; command type + * @flags; command flags + * @version; command version + * @data_format; data format + * @additional_len; additional data length + * @spare[3]; spare bytes + * @vendor[8]; vendor information + * @product[16]; production information + * @revision[4]; revision information + */ +struct scsi_inquiry_resp { + u8 type; + u8 flags; + u8 version; + u8 data_format; + u8 additional_len; + u8 spare[3]; + char vendor[8]; + char product[16]; + char revision[4]; +}; + +/** + * struct scsi_read_capacity_resp - holds the response to a read-capacity cmd + * + * @last_block_addr: Logical block address of last block + * @block_len: Length of each block in bytes + */ +struct scsi_read_capacity_resp { + u32 last_block_addr; + u32 block_len; +}; + +/** + * struct scsi_read10_req - holds a SCSI READ10 request + * + * @cmd; command type + * @lun_flags; LUN flags + * @lba; Logical block address to start reading from + * @spare; spare bytes + * @xfer_len: number of blocks to read + * @spare2: more spare bytes + */ +struct __packed scsi_read10_req { + u8 cmd; + u8 lun_flags; + u32 lba; + u8 spare; + u16 xfer_len; + u8 spare2[3]; +}; + +/** * struct scsi_plat - stores information about SCSI controller * * @base: Controller base address |