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/* $OpenBSD: mbavar.h,v 1.6 2002/06/11 09:36:24 hugh Exp $ */
/* $NetBSD: mbavar.h,v 1.7 2000/06/04 18:04:39 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of Lule}.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
#include <sys/device.h>
#include <machine/scb.h>
#define MBCR_INIT 1
#define MBCR_IE (1<<2)
#define MBDS_DPR (1<<8)
#define MBSR_NED (1<<18)
#define MBDT_MOH (1<<13)
#define MBDT_TYPE 511
#define MBDT_TAP (1<<14)
#define CLOSED 0
#define WANTOPEN 1
#define RDLABEL 2
#define OPEN 3
#define OPENRAW 4
#define MAXMBADEV 8 /* Max units per MBA */
/*
* Devices that have different device drivers.
*/
enum mb_devices {
MB_RP, /* RM/RP disk */
MB_TU, /* TM03 based tape, ex. TU45 or TU77 */
MB_MT /* TU78 tape */
};
/*
* Current state of the adapter.
*/
enum sc_state {
SC_AUTOCONF,
SC_ACTIVE,
SC_IDLE
};
/*
* Return value after a finished data transfer, from device driver.
*/
enum xfer_action {
XFER_RESTART,
XFER_FINISH
};
/*
* Info passed do unit device driver during autoconfig.
*/
struct mba_attach_args {
int ma_unit;
int ma_type;
char *ma_name;
enum mb_devices ma_devtyp;
bus_space_tag_t ma_iot;
bus_space_handle_t ma_ioh;
};
/*
* Common struct used to communicate between the mba device driver
* and the unit device driver.
*/
struct mba_device {
struct mba_device *md_back; /* linked list of runnable devices */
/* Start routine to be called by mbastart. */
void (*md_start)(struct mba_device *);
/* Routine to be called after attn intr */
int (*md_attn)(struct mba_device *);
/* Call after xfer finish */
enum xfer_action (*md_finish)(struct mba_device *, int, int *);
void *md_softc; /* Backpointer to this units softc. */
struct mba_softc *md_mba;
struct buf_queue md_q; /* queue of I/O requests */
};
struct mba_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
struct evcnt sc_intrcnt;
struct mba_device *sc_first, *sc_last;
enum sc_state sc_state;
struct mba_device *sc_md[MAXMBADEV];
};
struct mbaunit {
int nr;
char *name;
enum mb_devices devtyp;
};
/* Common prototypes */
void mbaqueue(struct mba_device *);
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