linux/drivers/scsi/ultrastor.h
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   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
  16static int ultrastor_detect(struct scsi_host_template *);
  17static const char *ultrastor_info(struct Scsi_Host *shpnt);
  18static int ultrastor_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
  19static int ultrastor_abort(struct scsi_cmnd *);
  20static int ultrastor_host_reset(struct scsi_cmnd *);
  21static 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
  81
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