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_cmnd *,
  19                                 void (*done)(struct scsi_cmnd *));
  20 static int ultrastor_abort(struct scsi_cmnd *);
  21 static int ultrastor_host_reset(struct scsi_cmnd *);
  22 static int ultrastor_biosparam(struct scsi_device *, struct block_device *,
  23                                 sector_t, int *);
  24
  25
  26 #define ULTRASTOR_14F_MAX_SG 16
  27 #define ULTRASTOR_24F_MAX_SG 33
  28
  29 #define ULTRASTOR_MAX_CMDS_PER_LUN 5
  30 #define ULTRASTOR_MAX_CMDS 16
  31
  32 #define ULTRASTOR_24F_PORT 0xC80
  33
  34
  35 #ifdef ULTRASTOR_PRIVATE
  36
  37 #define UD_ABORT        0x0001
  38 #define UD_COMMAND      0x0002
  39 #define UD_DETECT       0x0004
  40 #define UD_INTERRUPT    0x0008
  41 #define UD_RESET        0x0010
  42 #define UD_MULTI_CMD    0x0020
  43 #define UD_CSIR         0x0040
  44 #define UD_ERROR        0x0080
  45
  46 /* #define PORT_OVERRIDE 0x330 */
  47
  48 /* Values for the PRODUCT_ID ports for the 14F */
  49 #define US14F_PRODUCT_ID_0 0x56
  50 #define US14F_PRODUCT_ID_1 0x40         /* NOTE: Only upper nibble is used */
  51
  52 #define US24F_PRODUCT_ID_0 0x56
  53 #define US24F_PRODUCT_ID_1 0x63
  54 #define US24F_PRODUCT_ID_2 0x02
  55
  56 /* Subversion values */
  57 #define U14F 0
  58 #define U34F 1
  59
  60 /* MSCP field values */
  61
  62 /* Opcode */
  63 #define OP_HOST_ADAPTER 0x1
  64 #define OP_SCSI 0x2
  65 #define OP_RESET 0x4
  66
  67 /* Date Transfer Direction */
  68 #define DTD_SCSI 0x0
  69 #define DTD_IN 0x1
  70 #define DTD_OUT 0x2
  71 #define DTD_NONE 0x3
  72
  73 /* Host Adapter command subcodes */
  74 #define HA_CMD_INQUIRY 0x1
  75 #define HA_CMD_SELF_DIAG 0x2
  76 #define HA_CMD_READ_BUFF 0x3
  77 #define HA_CMD_WRITE_BUFF 0x4
  78
  79 #endif
  80
  81 #endif