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/* $OpenBSD: bhavar.h,v 1.5 2011/04/03 12:42:36 krw Exp $ */
/* $NetBSD: bhavar.h,v 1.12 1998/11/19 21:53:00 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
* Simulation Facility, NASA Ames Research Center.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/queue.h>
/*
* Mail box defs etc.
* these could be bigger but we need the bha_softc to fit on a single page..
*/
#define BHA_MBX_SIZE 32 /* mail box size (MAX 255 MBxs) */
/* don't need that many really */
#define BHA_CCB_MAX 32 /* store up to 32 CCBs at one time */
#define CCB_HASH_SIZE 32 /* hash table size for phystokv */
#define CCB_HASH_SHIFT 9
#define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1))
#define bha_nextmbx(wmb, mbx, mbio) \
if ((wmb) == &(mbx)->mbio[BHA_MBX_SIZE - 1]) \
(wmb) = &(mbx)->mbio[0]; \
else \
(wmb)++;
struct bha_mbx {
struct bha_mbx_out mbo[BHA_MBX_SIZE];
struct bha_mbx_in mbi[BHA_MBX_SIZE];
struct bha_mbx_out *cmbo; /* Collection Mail Box out */
struct bha_mbx_out *tmbo; /* Target Mail Box out */
struct bha_mbx_in *tmbi; /* Target Mail Box in */
};
struct bha_control {
struct bha_mbx bc_mbx; /* all our mailboxes */
struct bha_ccb bc_ccbs[BHA_CCB_MAX]; /* all our control blocks */
};
struct bha_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_dma_tag_t sc_dmat;
bus_dmamap_t sc_dmamap_control; /* maps the control structures */
int sc_dmaflags; /* bus-specific dma map flags */
void *sc_ih;
struct bha_control *sc_control; /* control structures */
int sc_iswide;
#define wmbx (&sc->sc_control->bc_mbx)
struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE];
TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb;
int sc_mbofull;
struct scsi_link sc_link; /* prototype for devs */
struct scsi_adapter sc_adapter;
struct mutex sc_ccb_mtx;
struct scsi_iopool sc_iopool;
char sc_model[7];
char sc_firmware[6];
};
/*
* Offset of a Mail Box In from the beginning of the control DMA mapping.
*/
#define BHA_MBI_OFF(m) (offsetof(struct bha_control, bc_mbx.mbi[0]) + \
(((u_long)(m)) - ((u_long)&wmbx->mbi[0])))
/*
* Offset of a Mail Box Out from the beginning of the control DMA mapping.
*/
#define BHA_MBO_OFF(m) (offsetof(struct bha_control, bc_mbx.mbo[0]) + \
(((u_long)(m)) - ((u_long)&wmbx->mbo[0])))
/*
* Offset of a CCB from the beginning of the control DMA mapping.
*/
#define BHA_CCB_OFF(c) (offsetof(struct bha_control, bc_ccbs[0]) + \
(((u_long)(c)) - ((u_long)&sc->sc_control->bc_ccbs[0])))
struct bha_probe_data {
int sc_irq, sc_drq;
int sc_scsi_dev; /* adapters scsi id */
int sc_iswide; /* adapter is wide */
};
/*#define ISWIDE(sc) (sc->sc_link.max_target >= 8)*/
int bha_cmd(bus_space_tag_t, bus_space_handle_t, struct bha_softc *,
int, u_char *, int, u_char *);
int bha_find(bus_space_tag_t, bus_space_handle_t,
struct bha_probe_data *);
void bha_attach(struct bha_softc *, struct bha_probe_data *);
int bha_intr(void *);
int bha_disable_isacompat(struct bha_softc *);
void bha_inquire_setup_information(struct bha_softc *);
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