/*-
 * Copyright (c) 1998 Nicolas Souchu
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/dev/ppbus/vpoio.h,v 1.4.2.2 2001/10/02 05:27:20 nsouch Exp $
 */

#ifndef __VP0IO_H
#define __VP0IO_H

/*
 * The ZIP drive cannot act as an initiator.
 */
#define VP0_INITIATOR   0x7

#define VP0_ESELECT_TIMEOUT     1
#define VP0_ECMD_TIMEOUT        2
#define VP0_ECONNECT            3
#define VP0_ESTATUS_TIMEOUT     4
#define VP0_EDATA_OVERFLOW      5       
#define VP0_EDISCONNECT         6
#define VP0_EPPDATA_TIMEOUT     7
#define VP0_ENEGOTIATE          8
#define VP0_ENOPORT             9
#define VP0_EINITFAILED         10
#define VP0_EINTR               12

#define VP0_EOTHER              13

#define VP0_OPENNINGS   1

/*
 * Data structure used during microsequence execution
 * when characters are received in nibble mode
 */
struct vpo_nibble {
        char h;                 /* most significant nibble */
        char l;                 /* less significant nibble */
};

/* Mode found during initialisation */
#define VP0_MODE_UNDEFINED      0x0
#define VP0_MODE_NIBBLE         0x1
#define VP0_MODE_PS2            0x2
#define VP0_MODE_EPP            0x3

struct vpoio_data {
        unsigned short int vpo_unit;
        int vpo_mode_found;             /* Mode found during init */

        struct vpo_nibble vpo_nibble;

        /* each device must have its own nibble inbyte microsequence */
        struct ppb_microseq *vpo_nibble_inbyte_msq;

        device_t vpo_dev;
};

#define vpoio_set_unit(vpo,unit) ((vpo)->vpo_unit = unit)

int vpoio_probe(device_t dev, struct vpoio_data *vpo);

int vpoio_attach(struct vpoio_data *vpo);
int vpoio_reset_bus(struct vpoio_data *vpo);

int vpoio_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
                int clen, char *buffer, int blen, int *result, int *count,
                int *ret);

int imm_probe(device_t dev, struct vpoio_data *vpo);

int imm_attach(struct vpoio_data *vpo);
int imm_reset_bus(struct vpoio_data *vpo);

int imm_do_scsi(struct vpoio_data *vpo, int host, int target, char *command,
                int clen, char *buffer, int blen, int *result, int *count,
                int *ret);

#endif