091a610ac9
introduced. Since its now only possible to have one DMA control block at a time, we move the setup to dmastart instead.
154 lines
4.1 KiB
C
154 lines
4.1 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 <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/disk.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/bio.h>
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#include <sys/malloc.h>
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#include <sys/devicestat.h>
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#include <sys/sysctl.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_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 to get the start address */
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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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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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#include "pci.h"
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#if NPCI == 0
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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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void
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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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}
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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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