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/*

 *      ultrastor.c     (C) 1991 David B. Gentzel

 *      Low-level scsi driver for UltraStor 14F

 *      by David B. Gentzel, Whitfield Software Services, Carnegie, PA

 *          (gentzel@nova.enet.dec.com)

 *  scatter/gather added by Scott Taylor (n217cg@tamuts.tamu.edu)

 *  24F support by John F. Carr (jfc@athena.mit.edu)

 *    John's work modified by Caleb Epstein (cae@jpmorgan.com) and

 *    Eric Youngdale (eric@tantalus.nrl.navy.mil).

 *      Thanks to UltraStor for providing the necessary documentation

 */

#ifndef _ULTRASTOR_H

#define _ULTRASTOR_H

#include <linux/kdev_t.h>

int ultrastor_detect(Scsi_Host_Template *);

const char *ultrastor_info(struct Scsi_Host * shpnt);

int ultrastor_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));

int ultrastor_abort(Scsi_Cmnd *);

int ultrastor_reset(Scsi_Cmnd *, unsigned int);

int ultrastor_biosparam(Disk *, kdev_t, int *);

#define ULTRASTOR_14F_MAX_SG 16

#define ULTRASTOR_24F_MAX_SG 33

#define ULTRASTOR_MAX_CMDS_PER_LUN 5

#define ULTRASTOR_MAX_CMDS 16

#define ULTRASTOR_24F_PORT 0xC80

#define ULTRASTOR_14F {   name:              "UltraStor 14F/24F/34F",   \

                          detect:            ultrastor_detect,          \

                          info:              ultrastor_info,            \

                          queuecommand:      ultrastor_queuecommand,    \

                          abort:             ultrastor_abort,           \

                          reset:             ultrastor_reset,           \

                          bios_param:        ultrastor_biosparam,       \

                          can_queue:         ULTRASTOR_MAX_CMDS,        \

                          this_id:           0,                  \

                          sg_tablesize:      ULTRASTOR_14F_MAX_SG,      \

                          cmd_per_lun:       ULTRASTOR_MAX_CMDS_PER_LUN,\

                          unchecked_isa_dma: 1,                         \

                          use_clustering:    ENABLE_CLUSTERING }

#ifdef ULTRASTOR_PRIVATE

#define UD_ABORT        0x0001

#define UD_COMMAND      0x0002

#define UD_DETECT       0x0004

#define UD_INTERRUPT    0x0008

#define UD_RESET        0x0010

#define UD_MULTI_CMD    0x0020

#define UD_CSIR         0x0040

#define UD_ERROR        0x0080

/* #define PORT_OVERRIDE 0x330 */

/* Values for the PRODUCT_ID ports for the 14F */

#define US14F_PRODUCT_ID_0 0x56

#define US14F_PRODUCT_ID_1 0x40         /* NOTE: Only upper nibble is used */

#define US24F_PRODUCT_ID_0 0x56

#define US24F_PRODUCT_ID_1 0x63

#define US24F_PRODUCT_ID_2 0x02

/* Subversion values */

#define U14F 0

#define U34F 1

/* MSCP field values */

/* Opcode */

#define OP_HOST_ADAPTER 0x1

#define OP_SCSI 0x2

#define OP_RESET 0x4

/* Date Transfer Direction */

#define DTD_SCSI 0x0

#define DTD_IN 0x1

#define DTD_OUT 0x2

#define DTD_NONE 0x3

/* Host Adapter command subcodes */

#define HA_CMD_INQUIRY 0x1

#define HA_CMD_SELF_DIAG 0x2

#define HA_CMD_READ_BUFF 0x3

#define HA_CMD_WRITE_BUFF 0x4

#endif

#endif