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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
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
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