79b026a8f3
ISA-compatible port space of PCI buslogic cards. * Add call to bha_pci.c to disable the ISA-compatible ports of a PCI device. The ISA-compatible ports are enabled by default, which causes the card to be autoconfigured a second time as an ISA device, which appears to deadlock the card. * Change bha_cmd() to return the number of bytes it actually received in response to a command, or -1 on error. * Use heuristics (checking for bha-only registers, and checking the size of the response to BHA_INQURE_EXTENDED) to bha_find, to make sure the bha driver never matches an aha (Adaptec 1542 or compatible) device. A single kernel should now boot on either Adaptec or BusLogic controllers, provided we always probe for BusLogic devices before Adaptec devices, but this has not yet been verified.
83 lines
3.2 KiB
C
83 lines
3.2 KiB
C
/* $NetBSD: bhavar.h,v 1.4 1996/11/05 03:04:33 jonathan 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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/*
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* Mail box defs etc.
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* these could be bigger but we need the bha_softc to fit on a single page..
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*/
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#define BHA_MBX_SIZE 32 /* mail box size (MAX 255 MBxs) */
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/* don't need that many really */
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#define BHA_CCB_MAX 32 /* store up to 32 CCBs at one time */
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#define CCB_HASH_SIZE 32 /* hash table size for phystokv */
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#define CCB_HASH_SHIFT 9
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#define CCB_HASH(x) ((((long)(x))>>CCB_HASH_SHIFT) & (CCB_HASH_SIZE - 1))
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#define bha_nextmbx(wmb, mbx, mbio) \
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if ((wmb) == &(mbx)->mbio[BHA_MBX_SIZE - 1]) \
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(wmb) = &(mbx)->mbio[0]; \
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else \
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(wmb)++;
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struct bha_mbx {
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struct bha_mbx_out mbo[BHA_MBX_SIZE];
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struct bha_mbx_in mbi[BHA_MBX_SIZE];
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struct bha_mbx_out *cmbo; /* Collection Mail Box out */
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struct bha_mbx_out *tmbo; /* Target Mail Box out */
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struct bha_mbx_in *tmbi; /* Target Mail Box in */
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};
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struct bha_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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char sc_model[7],
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sc_firmware[6];
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struct bha_mbx sc_mbx; /* all our mailboxes */
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#define wmbx (&sc->sc_mbx)
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struct bha_ccb *sc_ccbhash[CCB_HASH_SIZE];
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TAILQ_HEAD(, bha_ccb) sc_free_ccb, sc_waiting_ccb;
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int sc_numccbs, sc_mbofull;
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int sc_scsi_dev; /* adapters scsi id */
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struct scsi_link sc_link; /* prototype for devs */
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};
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int bha_find __P((bus_space_tag_t, bus_space_handle_t,
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struct bha_softc *));
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void bha_attach __P((struct bha_softc *));
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int bha_intr __P((void *));
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int bha_disable_isacompat __P((struct bha_softc *));
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