NetBSD/sys/dev/ic/uhavar.h

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/* $NetBSD: uhavar.h,v 1.11 1998/12/09 08:47:20 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
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* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
*/
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#include <sys/queue.h>
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#define UHA_MSCP_MAX 32 /* store up to 32 MSCPs at one time */
#define MSCP_HASH_SIZE 32 /* hash table size for phystokv */
#define MSCP_HASH_SHIFT 9
#define MSCP_HASH(x) ((((long)(x))>>MSCP_HASH_SHIFT) & (MSCP_HASH_SIZE - 1))
struct uha_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_dma_tag_t sc_dmat;
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void *sc_ih;
int sc_dmaflags; /* bus-specific DMA map creation flags */
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void (*start_mbox) __P((struct uha_softc *, struct uha_mscp *));
int (*poll) __P((struct uha_softc *, struct scsipi_xfer *, int));
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void (*init) __P((struct uha_softc *));
bus_dmamap_t sc_dmamap_mscp; /* maps the mscps */
struct uha_mscp *sc_mscps; /* all our mscps */
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struct uha_mscp *sc_mscphash[MSCP_HASH_SIZE];
TAILQ_HEAD(, uha_mscp) sc_free_mscp;
int sc_nummscps;
struct scsipi_link sc_link;
struct scsipi_adapter sc_adapter;
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TAILQ_HEAD(, scsipi_xfer) sc_queue;
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};
/*
* Offset of an MSCP from the beginning of the MSCP DMA mapping.
*/
#define UHA_MSCP_OFF(m) (((u_long)(m)) - ((u_long)&sc->sc_mscps[0]))
struct uha_probe_data {
int sc_irq, sc_drq;
int sc_scsi_dev;
};
void uha_attach __P((struct uha_softc *, struct uha_probe_data *));
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void uha_timeout __P((void *arg));
struct uha_mscp *uha_mscp_phys_kv __P((struct uha_softc *, u_long));
void uha_done __P((struct uha_softc *, struct uha_mscp *));