769a499800
- No more distinction between i/o-mapped and memory-mapped devices. It's all "bus space" now, and space tags differentiate the space with finer grain than the bus chipset tag. - Add memory barrier methods. - Implement space alloc/free methods. - Implement region read/write methods (like memcpy to/from bus space). This interface provides a better abstraction for dealing with machine-independent chipset drivers.
61 lines
2.6 KiB
C
61 lines
2.6 KiB
C
/* $NetBSD: uhavar.h,v 1.3 1996/10/21 22:34:43 thorpej Exp $ */
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/*
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* Copyright (c) 1994, 1996 Charles M. Hannum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles M. Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define UHA_MSCP_MAX 32 /* store up to 32 MSCPs at one time */
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#define MSCP_HASH_SIZE 32 /* hash table size for phystokv */
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#define MSCP_HASH_SHIFT 9
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#define MSCP_HASH(x) ((((long)(x))>>MSCP_HASH_SHIFT) & (MSCP_HASH_SIZE - 1))
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struct uha_softc {
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struct device sc_dev;
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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int sc_irq, sc_drq;
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void *sc_ih;
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void (*start_mbox) __P((struct uha_softc *, struct uha_mscp *));
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int (*poll) __P((struct uha_softc *, struct scsi_xfer *, int));
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void (*init) __P((struct uha_softc *));
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struct uha_mscp *sc_mscphash[MSCP_HASH_SIZE];
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TAILQ_HEAD(, uha_mscp) sc_free_mscp;
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int sc_nummscps;
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int sc_scsi_dev; /* our scsi id */
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struct scsi_link sc_link;
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};
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void uha_attach __P((struct uha_softc *));
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void uha_timeout __P((void *arg));
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struct uha_mscp *uha_mscp_phys_kv __P((struct uha_softc *, u_long));
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void uha_done __P((struct uha_softc *, struct uha_mscp *));
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