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/*-
* Copyright 2004 by Peter Grehan. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Mac 'Kauai' PCI ATA controller
*/
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <sys/sema.h>
#include <sys/taskqueue.h>
#include <vm/uma.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <sys/ata.h>
#include <dev/ata/ata-all.h>
#include <dev/ofw/openfirm.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#define ATA_KAUAI_REGOFFSET 0x2000
/*
* Offset to alt-control register from base
*/
#define ATA_KAUAI_ALTOFFSET (ATA_KAUAI_REGOFFSET + 0x160)
/*
* Define the gap between registers
*/
#define ATA_KAUAI_REGGAP 16
/*
* Define the kauai pci bus attachment.
*/
static int ata_kauai_probe(device_t dev);
static device_method_t ata_kauai_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ata_kauai_probe),
DEVMETHOD(device_attach, ata_attach),
DEVMETHOD(device_detach, bus_generic_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
{ 0, 0 }
};
static driver_t ata_kauai_driver = {
"ata",
ata_kauai_methods,
sizeof(struct ata_channel),
};
DRIVER_MODULE(ata, pci, ata_kauai_driver, ata_devclass, 0, 0);
static int
ata_kauai_locknoop(struct ata_channel *ch, int type)
{
/* XXX SMP ? */
return (0);
}
static void
ata_kauai_setmode(struct ata_device *atadev, int mode)
{
atadev->mode = ATA_PIO;
}
/*
* PCI ID search table
*/
static struct kauai_pci_dev {
u_int32_t kpd_devid;
char *kpd_desc;
} kauai_pci_devlist[] = {
{ 0x0033106b, "Uninorth2 Kauai ATA Controller" },
{ 0x003b106b, "Intrepid Kauai ATA Controller" },
{ 0x0043106b, "K2 Kauai ATA Controller" },
{ 0, NULL }
};
static int
ata_kauai_probe(device_t dev)
{
struct ata_channel *ch;
struct resource *mem;
u_long startp, countp;
u_int32_t devid;
int i, found, rid, status;
found = 0;
devid = pci_get_devid(dev);
for (i = 0; kauai_pci_devlist[i].kpd_desc != NULL; i++) {
if (devid == kauai_pci_devlist[i].kpd_devid) {
found = 1;
device_set_desc(dev, kauai_pci_devlist[i].kpd_desc);
}
}
if (!found)
return (ENXIO);
/*
* This device seems to ignore writes to the interrupt
* config register, resulting in interrupt resources
* not being attached. If this is the case, use
* Open Firmware to determine the irq, and then attach
* the resource. This allows the ATA common code to
* allocate the irq.
*/
status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp, &countp);
if (status == ENOENT) {
int irq;
/*
* Aargh, hideous hack until ofw pci intr routine is
* exported
*/
irq = 39; /* XXX */
bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1);
/*
* Sanity check...
*/
status = bus_get_resource(dev, SYS_RES_IRQ, 0, &startp,
&countp);
if (status == ENOENT ||
startp != 39) {
printf("kauai irq not set!\n");
return (ENXIO);
}
}
ch = device_get_softc(dev);
bzero(ch, sizeof(struct ata_channel));
rid = PCIR_BARS;
mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
if (mem == NULL) {
device_printf(dev, "could not allocate memory\n");
return (ENXIO);
}
/*
* Set up the resource vectors
*/
for (i = ATA_DATA; i <= ATA_STATUS; i++) {
ch->r_io[i].res = mem;
ch->r_io[i].offset = i*ATA_KAUAI_REGGAP + ATA_KAUAI_REGOFFSET;
}
ch->r_io[ATA_ALTSTAT].res = mem;
ch->r_io[ATA_ALTSTAT].offset = ATA_KAUAI_ALTOFFSET;
ch->unit = 0;
ch->flags |= ATA_USE_16BIT|ATA_NO_SLAVE;
ch->locking = ata_kauai_locknoop;
ch->device[MASTER].setmode = ata_kauai_setmode;
ch->device[SLAVE].setmode = ata_kauai_setmode;
ata_generic_hw(ch);
return (ata_probe(dev));
}
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