ultrastor.h

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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
 *      ([email protected])
 *  scatter/gather added by Scott Taylor ([email protected])
 *  24F support by John F. Carr ([email protected])
 *    John's work modified by Caleb Epstein ([email protected]) and 
 *    Eric Youngdale ([email protected]).
 *  Thanks to UltraStor for providing the necessary documentation
 */

#ifndef _ULTRASTOR_H
#define _ULTRASTOR_H

static int ultrastor_detect(struct scsi_host_template *);
static const char *ultrastor_info(struct Scsi_Host *shpnt);
static int ultrastor_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
static int ultrastor_abort(struct scsi_cmnd *);
static int ultrastor_host_reset(struct scsi_cmnd *);
static int ultrastor_biosparam(struct scsi_device *, struct block_device *,
                sector_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


#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