8ba4488cea
This mostly consists of functionality to serialize accesses to the two ATA channels (which can also be used to "fix" certain PCI based controllers). Add support for Acard controllers. Enable the ATA driver in PC98 GENERIC, and add device hints. Update man page with latest support. The PC98 core team has kindly provided me with a PC98 machine that made this all possible, thanks to all that contributed to that effort, without that this would probably newer have been possible.. Approved by: re@
165 lines
4.2 KiB
C
165 lines
4.2 KiB
C
/*-
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* Copyright (c) 1998,1999,2000,2001,2002 Søren Schmidt <sos@FreeBSD.org>
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* 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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* without modification, immediately at the beginning of the file.
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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. 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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* $FreeBSD$
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*/
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#include "opt_ata.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/malloc.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <isa/isavar.h>
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#include <dev/ata/ata-all.h>
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/* local vars */
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static struct isa_pnp_id ata_ids[] = {
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{0x0006d041, "Generic ESDI/IDE/ATA controller"}, /* PNP0600 */
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{0x0106d041, "Plus Hardcard II"}, /* PNP0601 */
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{0x0206d041, "Plus Hardcard IIXL/EZ"}, /* PNP0602 */
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{0x0306d041, "Generic ATA"}, /* PNP0603 */
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{0}
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};
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static int
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ata_isa_intrnoop(struct ata_channel *ch)
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{
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return 1;
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}
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static void
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ata_isa_lock(struct ata_channel *ch, int type)
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{
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}
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static int
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ata_isa_probe(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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struct resource *io;
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u_long tmp;
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int rid;
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/* check isapnp ids */
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if (ISA_PNP_PROBE(device_get_parent(dev), dev, ata_ids) == ENXIO)
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return ENXIO;
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/* allocate the io port range */
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rid = ATA_IOADDR_RID;
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io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
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ATA_IOSIZE, RF_ACTIVE);
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if (!io)
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return ENOMEM;
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/* set the altport range */
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if (bus_get_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, &tmp, &tmp)) {
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bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
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rman_get_start(io) + ATA_ALTOFFSET, ATA_ALTIOSIZE);
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}
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bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
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ch->unit = 0;
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ch->flags |= ATA_USE_16BIT;
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ch->intr_func = ata_isa_intrnoop;
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ch->lock_func = ata_isa_lock;
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return ata_probe(dev);
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}
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static device_method_t ata_isa_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, ata_isa_probe),
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DEVMETHOD(device_attach, ata_attach),
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DEVMETHOD(device_resume, ata_resume),
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{ 0, 0 }
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};
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static driver_t ata_isa_driver = {
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"ata",
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ata_isa_methods,
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sizeof(struct ata_channel),
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};
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DRIVER_MODULE(ata, isa, ata_isa_driver, ata_devclass, 0, 0);
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/*
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* the following is a bandaid to get ISA only setups to link,
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* since these are getting rare the ugliness is kept here
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*/
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#ifdef ATA_NOPCI
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int
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ata_dmaalloc(struct ata_device *atadev)
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{
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return ENXIO;
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}
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void
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ata_dmafree(struct ata_device *atadev)
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{
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}
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void
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ata_dmafreetags(struct ata_channel *ch)
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{
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}
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void
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ata_dmainit(struct ata_device *atadev, int piomode, int wdmamode, int udmamode)
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{
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}
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int
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ata_dmasetup(struct ata_device *atadev, caddr_t data, int32_t count)
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{
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return -1;
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}
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int
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ata_dmastart(struct ata_device *atadev, caddr_t data, int32_t count, int dir)
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{
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return -1;
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}
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int
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ata_dmadone(struct ata_device *atadev)
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{
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return -1;
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}
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int
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ata_dmastatus(struct ata_channel *ch)
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{
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return -1;
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}
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#endif
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