drivers/scsi/ultrastor.h

   1 /*
   2  *      ultrastor.c     (C) 1991 David B. Gentzel
   3  *      Low-level scsi driver for UltraStor 14F
   4  *      by David B. Gentzel, Whitfield Software Services, Carnegie, PA
   5  *          (gentzel@nova.enet.dec.com)
   6  *  scatter/gather added by Scott Taylor (n217cg@tamuts.tamu.edu)
   7  *  24F support by John F. Carr (jfc@athena.mit.edu)
   8  *    John's work modified by Caleb Epstein (cae@jpmorgan.com) and
   9  *    Eric Youngdale (eric@tantalus.nrl.navy.mil).
  10  *      Thanks to UltraStor for providing the necessary documentation
  11  */
  12
  13 #ifndef _ULTRASTOR_H
  14 #define _ULTRASTOR_H
  15
  16 static int ultrastor_detect(struct scsi_host_template *);
  17 static const char *ultrastor_info(struct Scsi_Host *shpnt);
  18 static int ultrastor_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
  19 static int ultrastor_abort(struct scsi_cmnd *);
  20 static int ultrastor_host_reset(struct scsi_cmnd *);
  21 static int ultrastor_biosparam(struct scsi_device *, struct block_device *,
  22                                 sector_t, int *);
  23
  24
  25 #define ULTRASTOR_14F_MAX_SG 16
  26 #define ULTRASTOR_24F_MAX_SG 33
  27
  28 #define ULTRASTOR_MAX_CMDS_PER_LUN 5
  29 #define ULTRASTOR_MAX_CMDS 16
  30
  31 #define ULTRASTOR_24F_PORT 0xC80
  32
  33
  34 #ifdef ULTRASTOR_PRIVATE
  35
  36 #define UD_ABORT        0x0001
  37 #define UD_COMMAND      0x0002
  38 #define UD_DETECT       0x0004
  39 #define UD_INTERRUPT    0x0008
  40 #define UD_RESET        0x0010
  41 #define UD_MULTI_CMD    0x0020
  42 #define UD_CSIR         0x0040
  43 #define UD_ERROR        0x0080
  44
  45 /* #define PORT_OVERRIDE 0x330 */
  46
  47 /* Values for the PRODUCT_ID ports for the 14F */
  48 #define US14F_PRODUCT_ID_0 0x56
  49 #define US14F_PRODUCT_ID_1 0x40         /* NOTE: Only upper nibble is used */
  50
  51 #define US24F_PRODUCT_ID_0 0x56
  52 #define US24F_PRODUCT_ID_1 0x63
  53 #define US24F_PRODUCT_ID_2 0x02
  54
  55 /* Subversion values */
  56 #define U14F 0
  57 #define U34F 1
  58
  59 /* MSCP field values */
  60
  61 /* Opcode */
  62 #define OP_HOST_ADAPTER 0x1
  63 #define OP_SCSI 0x2
  64 #define OP_RESET 0x4
  65
  66 /* Date Transfer Direction */
  67 #define DTD_SCSI 0x0
  68 #define DTD_IN 0x1
  69 #define DTD_OUT 0x2
  70 #define DTD_NONE 0x3
  71
  72 /* Host Adapter command subcodes */
  73 #define HA_CMD_INQUIRY 0x1
  74 #define HA_CMD_SELF_DIAG 0x2
  75 #define HA_CMD_READ_BUFF 0x3
  76 #define HA_CMD_WRITE_BUFF 0x4
  77
  78 #endif
  79
  80 #endif