Work-in-progress for the 'Kauai' ATA device in Mac notebooks. The
device seems to be the macio ATA cell with a PCI front-end, and has no relation to PIIX-style ATA/PCI devices.
This commit is contained in:
Peter Grehan
parent
a3063d483e
commit
321fd46031
@ -95,6 +95,7 @@ powerpc/ofw/ofw_pci.c optional pci
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powerpc/ofw/ofw_pcib_pci.c optional pci
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powerpc/ofw/ofw_syscons.c optional sc
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powerpc/powermac/ata_kauai.c optional powermac ata
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powerpc/powermac/ata_macio.c optional powermac ata
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powerpc/powermac/grackle.c optional powermac pci
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powerpc/powermac/hrowpic.c optional powermac pci
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190
sys/powerpc/powermac/ata_kauai.c
Normal file
190
sys/powerpc/powermac/ata_kauai.c
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@ -0,0 +1,190 @@
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/*
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* Copyright 2004 by Peter Grehan. 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. 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,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Mac 'Kauai' PCI ATA controller
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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 <sys/sema.h>
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#include <sys/taskqueue.h>
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#include <vm/uma.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 <sys/ata.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#define ATA_KAUAI_REGOFFSET 0x2000
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#define ATA_KAUAI_ALTOFFSET (ATA_KAUAI_REGOFFSET + 0x16)
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/*
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* Define the kauai pci bus attachment.
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*/
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static int ata_kauai_probe(device_t dev);
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static device_method_t ata_kauai_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ata_kauai_probe),
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DEVMETHOD(device_attach, ata_attach),
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DEVMETHOD(device_detach, bus_generic_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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{ 0, 0 }
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};
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static driver_t ata_kauai_driver = {
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"ata",
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ata_kauai_methods,
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sizeof(struct ata_channel),
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};
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DRIVER_MODULE(ata, pci, ata_kauai_driver, ata_devclass, 0, 0);
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static void
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ata_kauai_locknoop(struct ata_channel *ch, int type)
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{
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/* XXX SMP ? */
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}
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static void
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ata_kauai_setmode(struct ata_device *atadev, int mode)
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{
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atadev->mode = ATA_PIO;
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}
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/*
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* PCI ID search table
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*/
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static struct kauai_pci_dev {
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u_int32_t kpd_devid;
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char *kpd_desc;
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} kauai_pci_devlist[] = {
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{ 0x0033106b, "Uninorth2 Kauai ATA Controller" },
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{ 0x003b106b, "Intrepid Kauai ATA Controller" },
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{ 0x0043106b, "K2 Kauai ATA Controller" },
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{ 0, NULL }
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};
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static int
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ata_kauai_probe(device_t dev)
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{
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struct ata_channel *ch;
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struct resource *mem;
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u_long startp, countp;
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u_int32_t devid;
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int i, found, rid, status;
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found = 0;
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devid = pci_get_devid(dev);
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for (i = 0; kauai_pci_devlist[i].kpd_desc != NULL; i++) {
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if (devid == kauai_pci_devlist[i].kpd_devid) {
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found = 1;
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device_set_desc(dev, kauai_pci_devlist[i].kpd_desc);
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}
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}
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if (!found)
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return (ENXIO);
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/*
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* This device seems to ignore writes to the interrupt
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* config register, resulting in interrupt resources
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* not being attached. If this is the case, use
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* OpenFirmware to determine the irq, and then attach
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* the resource. This allows the ATA common code to
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* allocate the irq.
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*/
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status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp, &countp);
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if (status == ENOENT) {
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int irq;
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/*
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* Aargh, hideous hack until ofw pci intr routine is
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* exported
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*/
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irq = 39; /* XXX */
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bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
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/*
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* Sanity check...
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*/
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status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp,
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&countp);
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if (status == ENOENT ||
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startp != 39) {
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printf("kauai irq not set!\n");
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return (ENXIO);
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}
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}
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ch = device_get_softc(dev);
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rid = 0;
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mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~1, 1,
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RF_ACTIVE);
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if (mem == NULL) {
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device_printf(dev, "could not allocate memory\n");
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return (ENXIO);
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}
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/*
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* Set up the resource vectors
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*/
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for (i = ATA_DATA; i <= ATA_STATUS; i++) {
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ch->r_io[i].res = mem;
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ch->r_io[i].offset = i + ATA_KAUAI_REGOFFSET;
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}
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ch->r_io[ATA_ALTSTAT].res = mem;
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ch->r_io[ATA_ALTSTAT].offset = ATA_KAUAI_ALTOFFSET;
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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_kauai_locknoop;
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ch->device[MASTER].setmode = ata_kauai_setmode;
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ch->device[SLAVE].setmode = ata_kauai_setmode;
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return (ata_probe(dev));
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}
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