bb5bdd386e
This moves all chipset specific code to a new file 'ata-chipset.c'. Extensive use of tables and pointers to avoid having the same switch on chipset type in several places, and to allow substituting various functions for different HW arch needs. Added PIO mode setup and all DMA modes. Support for all known SiS chipsets. Thanks to Christoph Kukulies for sponsoring a nice ASUS P4S8X SiS648 based board for this work! Tested on: i386, PC98, alpha and sparc64
137 lines
4.4 KiB
C
137 lines
4.4 KiB
C
/*-
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* Copyright (c) 1998 - 2003 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/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 <dev/ata/ata-all.h>
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#include <dev/pccard/pccardreg.h>
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#include <dev/pccard/pccardvar.h>
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#include <dev/pccard/pccarddevs.h>
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static int
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ata_pccard_match(device_t dev)
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{
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u_int32_t fcn = PCCARD_FUNCTION_UNSPEC;
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int error = 0;
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error = pccard_get_function(dev, &fcn);
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if (error != 0)
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return (error);
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/* if it says its a disk we should register it */
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if (fcn == PCCARD_FUNCTION_DISK)
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return (0);
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/* other devices might need to be matched here */
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return(ENXIO);
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}
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static void
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ata_pccard_locknoop(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_pccard_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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int rid, len, start, end;
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u_long tmp;
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/* allocate the io range to get start and length */
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rid = ATA_IOADDR_RID;
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len = bus_get_resource_count(dev, SYS_RES_IOPORT, 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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/* reallocate the io address to only cover the io ports */
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start = rman_get_start(io);
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end = start + ATA_IOSIZE - 1;
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bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
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io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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start, end, ATA_IOSIZE, RF_ACTIVE);
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bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
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/*
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* if we got more than the default ATA_IOSIZE ports, this is likely
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* a pccard system where the altio ports are located at offset 14
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* otherwise its the normal altio offset
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*/
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if (bus_get_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, &tmp, &tmp)) {
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if (len > ATA_IOSIZE) {
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bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
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start + ATA_PCCARD_ALTOFFSET, ATA_ALTIOSIZE);
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}
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else {
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bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
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start + ATA_ALTOFFSET, ATA_ALTIOSIZE);
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}
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}
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else
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return ENOMEM;
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ch->unit = 0;
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ch->flags |= (ATA_USE_16BIT | ATA_NO_SLAVE);
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ch->locking = ata_pccard_locknoop;
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return ata_probe(dev);
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}
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static device_method_t ata_pccard_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, pccard_compat_probe),
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DEVMETHOD(device_attach, pccard_compat_attach),
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DEVMETHOD(device_detach, ata_detach),
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/* Card interface */
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DEVMETHOD(card_compat_match, ata_pccard_match),
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DEVMETHOD(card_compat_probe, ata_pccard_probe),
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DEVMETHOD(card_compat_attach, ata_attach),
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{ 0, 0 }
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};
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static driver_t ata_pccard_driver = {
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"ata",
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ata_pccard_methods,
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sizeof(struct ata_channel),
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};
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DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);
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