FreeBSD/Linux Kernel Cross Reference
sys/dev/scsipi/scsipi_all.h

     /*      $NetBSD: scsipi_all.h,v 1.25 2003/10/16 17:34:43 mycroft Exp $  */
     
     /*
      * SCSI and SCSI-like general interface description
      */
     
     /*
      * Largely written by Julian Elischer (julian@tfs.com)
      * for TRW Financial Systems.
     *
     * TRW Financial Systems, in accordance with their agreement with Carnegie
     * Mellon University, makes this software available to CMU to distribute
     * or use in any manner that they see fit as long as this message is kept with
     * the software. For this reason TFS also grants any other persons or
     * organisations permission to use or modify this software.
     *
     * TFS supplies this software to be publicly redistributed
     * on the understanding that TFS is not responsible for the correct
     * functioning of this software in any circumstances.
     *
     * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
     */
    
    #ifndef _DEV_SCSIPI_SCSIPI_ALL_H_
    #define _DEV_SCSIPI_SCSIPI_ALL_H_
    
    /*
     * SCSI-like command format and opcode
     */
    
    /*
     * Some basic, common SCSI command group definitions.
     */
    
    #define CDB_GROUPID(cmd)        ((cmd >> 5) & 0x7)
    #define CDB_GROUPID_0   0
    #define CDB_GROUPID_1   1
    #define CDB_GROUPID_2   2
    #define CDB_GROUPID_3   3
    #define CDB_GROUPID_4   4
    #define CDB_GROUPID_5   5
    #define CDB_GROUPID_6   6
    #define CDB_GROUPID_7   7
    
    #define CDB_GROUP0      6       /*  6-byte cdb's */
    #define CDB_GROUP1      10      /* 10-byte cdb's */
    #define CDB_GROUP2      10      /* 10-byte cdb's */
    #define CDB_GROUP3      0       /* reserved */
    #define CDB_GROUP4      16      /* 16-byte cdb's */
    #define CDB_GROUP5      12      /* 12-byte cdb's */
    #define CDB_GROUP6      0       /* vendor specific */
    #define CDB_GROUP7      0       /* vendor specific */
    
    /*
     * Some basic, common SCSI commands
     */
    #define TEST_UNIT_READY         0x00
    struct scsipi_test_unit_ready {
            u_int8_t opcode;
            u_int8_t byte2;
            u_int8_t unused[3];
            u_int8_t control;
    };
    
    #define REQUEST_SENSE           0x03
    struct scsipi_sense {
            u_int8_t opcode;
            u_int8_t byte2;
            u_int8_t unused[2];
            u_int8_t length;
            u_int8_t control;
    };
    
    #define MODE_SENSE              0x1a
    struct scsipi_mode_sense {
            u_int8_t opcode;
            u_int8_t byte2;
    #define SMS_DBD                         0x08 /* disable block descriptors */
            u_int8_t page;
    #define SMS_PAGE_CODE                   0x3F
    #define SMS_PAGE_CTRL                   0xC0
    #define SMS_PAGE_CTRL_CURRENT           0x00
    #define SMS_PAGE_CTRL_CHANGEABLE        0x40
    #define SMS_PAGE_CTRL_DEFAULT           0x80
    #define SMS_PAGE_CTRL_SAVED             0xC0
            u_int8_t unused;
            u_int8_t length;
            u_int8_t control;
    } __attribute__((packed));
    
    #define MODE_SENSE_BIG          0x5A
    struct scsipi_mode_sense_big {
            u_int8_t opcode;
            u_int8_t byte2;         /* same bits as small version */
            u_int8_t page;          /* same bits as small version */
            u_int8_t unused[4];
            u_int8_t length[2];
            u_int8_t control;
    } __attribute__((packed));
   
   #define MODE_SELECT             0x15
   struct scsipi_mode_select {
           u_int8_t opcode;
           u_int8_t byte2;
   #define SMS_SP  0x01            /* save page */
   #define SMS_PF  0x10            /* page format (0 = SCSI-1, 1 = SCSI-2) */
           u_int8_t unused[2];
           u_int8_t length;
           u_int8_t control;
   } __attribute__((packed));
   
   #define MODE_SELECT_BIG         0x55
   struct scsipi_mode_select_big {
           u_int8_t opcode;
           u_int8_t byte2;         /* same bits as small version */
           u_int8_t unused[5];
           u_int8_t length[2];
           u_int8_t control;
   } __attribute__((packed));
   
   #define INQUIRY                 0x12
   struct scsipi_inquiry {
           u_int8_t opcode;
           u_int8_t byte2;
           u_int8_t unused[2];
           u_int8_t length;
           u_int8_t control;
   } __attribute__((packed));
   
   #define START_STOP              0x1b
   struct scsipi_start_stop {
           u_int8_t opcode;
           u_int8_t byte2;
           u_int8_t unused[2];
           u_int8_t how;
   #define SSS_STOP                0x00
   #define SSS_START               0x01
   #define SSS_LOEJ                0x02
           u_int8_t control;
   };
   
   #define PREVENT_ALLOW           0x1e
   struct scsipi_prevent {
           u_int8_t opcode;
           u_int8_t byte2;
           u_int8_t unused[2];
           u_int8_t how;
           u_int8_t control;
   } __attribute__((packed));
   #define PR_PREVENT 0x01
   #define PR_ALLOW   0x00
   
   /*
    * inquiry and sense data format
    */
   
   struct scsipi_sense_data {
   /* 1*/  u_int8_t error_code;
   #define SSD_ERRCODE     0x7F
   #define SSD_ERRCODE_VALID 0x80
   /* 2*/  u_int8_t segment;
   /* 3*/  u_int8_t flags;
   #define SSD_KEY         0x0F
   #define SSD_ILI         0x20
   #define SSD_EOM         0x40
   #define SSD_FILEMARK    0x80
   /* 7*/  u_int8_t info[4];
   /* 8*/  u_int8_t extra_len;
   /*12*/  u_int8_t cmd_spec_info[4];
   /*13*/  u_int8_t add_sense_code;
   /*14*/  u_int8_t add_sense_code_qual;
   /*15*/  u_int8_t fru;
   /*16*/  u_int8_t sense_key_spec_1;
   #define SSD_SCS_VALID   0x80
   /*17*/  u_int8_t sense_key_spec_2;
   /*18*/  u_int8_t sense_key_spec_3;
   /*32*/  u_int8_t extra_bytes[14];
   } __attribute__((packed));
   
   #define SKEY_NO_SENSE           0x00
   #define SKEY_RECOVERED_ERROR    0x01
   #define SKEY_NOT_READY          0x02
   #define SKEY_MEDIUM_ERROR       0x03
   #define SKEY_HARDWARE_ERROR     0x04
   #define SKEY_ILLEGAL_REQUEST    0x05
   #define SKEY_UNIT_ATTENTION     0x06
   #define SKEY_WRITE_PROTECT      0x07
   #define SKEY_BLANK_CHECK        0x08
   #define SKEY_VENDOR_UNIQUE      0x09
   #define SKEY_COPY_ABORTED       0x0A
   #define SKEY_ABORTED_COMMAND    0x0B
   #define SKEY_EQUAL              0x0C
   #define SKEY_VOLUME_OVERFLOW    0x0D
   #define SKEY_MISCOMPARE         0x0E
   #define SKEY_RESERVED           0x0F
   
   /*
    * Sense bytes described by the extra_len tag start at cmd_spec_info,
    * and can only continue up to the end of the structure we've defined
    * (which is too short for some cases).
    */
   #define ADD_BYTES_LIM(sp)       \
           ((((int)(sp)->extra_len) < (int) sizeof(struct scsipi_sense_data) - 8)? \
           ((sp)->extra_len) : (sizeof (struct scsipi_sense_data) - 8))
   
   
   struct scsipi_sense_data_unextended {
   /* 1*/  u_int8_t error_code; 
   /* 4*/  u_int8_t block[3];
   } __attribute__((packed)); 
   
   #define T_REMOV         1       /* device is removable */
   #define T_FIXED         0       /* device is not removable */
   
   /*
    * According to SPC-2r16, in order to know if a U3W device support PPR,
    * Inquiry Data structure should be at least 57 Bytes
    */
   
   struct scsipi_inquiry_data {
   /* 1*/  u_int8_t device;
   #define SID_TYPE                0x1f    /* device type mask */
   #define SID_QUAL                0xe0    /* device qualifier mask */
   #define SID_QUAL_LU_PRESENT     0x00    /* logical unit present */
   #define SID_QUAL_LU_NOTPRESENT  0x20    /* logical unit not present */
   #define SID_QUAL_reserved       0x40
   #define SID_QUAL_LU_NOT_SUPP    0x60    /* logical unit not supported */
   
   #define T_DIRECT                0x00    /* direct access device */
   #define T_SEQUENTIAL            0x01    /* sequential access device */
   #define T_PRINTER               0x02    /* printer device */
   #define T_PROCESSOR             0x03    /* processor device */
   #define T_WORM                  0x04    /* write once, read many device */
   #define T_CDROM                 0x05    /* cd-rom device */
   #define T_SCANNER               0x06    /* scanner device */
   #define T_OPTICAL               0x07    /* optical memory device */
   #define T_CHANGER               0x08    /* medium changer device */
   #define T_COMM                  0x09    /* communication device */
   #define T_IT8_1                 0x0a    /* Defined by ASC IT8... */
   #define T_IT8_2                 0x0b    /* ...(Graphic arts pre-press devices) */
   #define T_STORARRAY             0x0c    /* storage array device */
   #define T_ENCLOSURE             0x0d    /* enclosure services device */
   #define T_SIMPLE_DIRECT         0x0E    /* Simplified direct-access device */
   #define T_OPTIC_CARD_RW         0x0F    /* Optical card reader/writer device */
   #define T_OBJECT_STORED         0x11    /* Object-based Storage Device */
   #define T_NODEVICE              0x1f
   
           u_int8_t dev_qual2;
   #define SID_QUAL2               0x7F
   #define SID_REMOVABLE           0x80
   
   /* 3*/  u_int8_t version;
   #define SID_ANSII       0x07
   #define SID_ECMA        0x38
   #define SID_ISO         0xC0
   
   /* 4*/  u_int8_t response_format;
   #define SID_RespDataFmt 0x0F
   #define SID_FORMAT_SCSI1        0x00    /* SCSI-1 format */
   #define SID_FORMAT_CCS          0x01    /* SCSI CCS format */
   #define SID_FORMAT_ISO          0x02    /* ISO format */
   
   /* 5*/  u_int8_t additional_length;     /* n-4 */
   /* 6*/  u_int8_t flags1;
   #define SID_SCC         0x80
   /* 7*/  u_int8_t flags2;
   #define SID_Addr16      0x01
   #define SID_MChngr      0x08
   #define SID_MultiPort   0x10
   #define SID_EncServ     0x40
   #define SID_BasQue      0x80
   /* 8*/  u_int8_t flags3;
   #define SID_SftRe       0x01
   #define SID_CmdQue      0x02
   #define SID_Linked      0x08
   #define SID_Sync        0x10
   #define SID_WBus16      0x20
   #define SID_WBus32      0x40
   #define SID_RelAdr      0x80
   /* 9*/  char    vendor[8];
   /*17*/  char    product[16];
   /*33*/  char    revision[4];
   #define SCSIPI_INQUIRY_LENGTH_SCSI2     36
   /*37*/  u_int8_t vendor_specific[20];
   /*57*/  u_int8_t flags4;
   #define        SID_IUS         0x01
   #define        SID_QAS         0x02
   #define        SID_Clocking    0x0C
   #define SID_CLOCKING_ST_ONLY  0x00
   #define SID_CLOCKING_DT_ONLY  0x04
   #define SID_CLOCKING_SD_DT    0x0C
   /*58*/  u_int8_t reserved;
   /*59*/  char    version_descriptor[8][2];
   #define SCSIPI_INQUIRY_LENGTH_SCSI3     74
   } __attribute__((packed)); /* 74 Bytes */
   
   /* Data structures for mode select/mode sense */
   struct scsipi_mode_header {
           u_int8_t data_length;   /* Sense data length */
           u_int8_t medium_type;
           u_int8_t dev_spec;
           u_int8_t blk_desc_len;  /* unused on ATAPI */
   } __attribute__((packed));
   
   struct scsipi_mode_header_big {
           u_int8_t data_length[2];        /* Sense data length */
           u_int8_t medium_type;
           u_int8_t dev_spec;
           u_int8_t unused[2];             /* unused on ATAPI */
           u_int8_t blk_desc_len[2];       /* unused on ATAPI */
   } __attribute__((packed));
   
   /*
    * This part is common to all mode pages.
    */
   struct scsipi_mode_page_header {
           u_int8_t pg_code;               /* page code */
   #define PGCODE_MASK     0x3f            /* page code mask */
   #define PGCODE_PS       0x80            /* page is savable */
           u_int8_t pg_length;             /* page length (not including hdr) */
   } __attribute__((__packed__));
   
   #endif /* _DEV_SCSIPI_SCSIPI_ALL_H_ */

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