/* $Id: advansys.h,v 1.17 1998/01/08 21:23:49 bobf Exp bobf $ */

/*
 * advansys.h - Linux Host Driver for AdvanSys SCSI Adapters
 * 
 * Copyright (c) 1995-1998 Advanced System Products, Inc.
 * All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that redistributions of source
 * code retain the above copyright notice and this comment without
 * modification.
 *
 * There is an AdvanSys Linux WWW page at:
 *  http://www.advansys.com/linux.html
 *
 * The latest version of the AdvanSys driver is available at:
 *  ftp://ftp.advansys.com/pub/linux
 *
 * Please send questions, comments, bug reports to:
 *  bobf@advansys.com (Bob Frey)
 */

#ifndef _ADVANSYS_H
#define _ADVANSYS_H

/* Convert Linux Version, Patch-level, Sub-level to LINUX_VERSION_CODE. */
#define ASC_LINUX_VERSION(V, P, S)    (((V) * 65536) + ((P) * 256) + (S))

#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#endif /* LINUX_VERSION_CODE */

/*
 * Scsi_Host_Template function prototypes.
 */
int advansys_detect(Scsi_Host_Template *);
int advansys_release(struct Scsi_Host *);
const char *advansys_info(struct Scsi_Host *);
int advansys_command(Scsi_Cmnd *);
int advansys_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
int advansys_abort(Scsi_Cmnd *);
int advansys_reset(Scsi_Cmnd *, unsigned int);
int advansys_biosparam(Disk *, kdev_t, int[]);
int advansys_proc_info(char *, char **, off_t, int, int, int);

/* init/main.c setup function */
void advansys_setup(char *, int *);

/*
 * AdvanSys Host Driver Scsi_Host_Template (struct SHT) from hosts.h.
 */
#define ADVANSYS { \
    proc_name:    "advansys", \
    proc_info:    advansys_proc_info, \
    name:         "advansys", \
    detect:       advansys_detect, \
    release:      advansys_release, \
    info:         advansys_info, \
    command:      advansys_command, \
    queuecommand: advansys_queuecommand, \
    abort:        advansys_abort, \
    reset:        advansys_reset, \
    bios_param:    advansys_biosparam, \
    /* \
     * Because the driver may control an ISA adapter 'unchecked_isa_dma' \
     * must be set. The flag will be cleared in advansys_detect for non-ISA \
     * adapters. Refer to the comment in scsi_module.c for more information. \
     */ \
    unchecked_isa_dma: 1, \
    /* \
     * All adapters controlled by this driver are capable of large \
     * scatter-gather lists. According to the mid-level SCSI documentation \
     * this obviates any performance gain provided by setting \
     * 'use_clustering'. But empirically while CPU utilization is increased \
     * by enabling clustering, I/O throughput increases as well. \
     */ \
    use_clustering: ENABLE_CLUSTERING, \
}
#endif /* _ADVANSYS_H */