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/*
* Copyright 2002 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.
*
* $FreeBSD$
*/
/*
* Mac-io 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/ofw_bus.h>
/*
* Offset to control registers from base
*/
#define ATA_MACIO_ALTOFFSET 0x160
/*
* Define the gap between registers
*/
#define ATA_MACIO_REGGAP 16
/*
* Define the macio ata bus attachment.
*/
static int ata_macio_probe(device_t dev);
static device_method_t ata_macio_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ata_macio_probe),
DEVMETHOD(device_attach, ata_attach),
{ 0, 0 }
};
static driver_t ata_macio_driver = {
"ata",
ata_macio_methods,
sizeof(struct ata_channel),
};
DRIVER_MODULE(ata, macio, ata_macio_driver, ata_devclass, 0, 0);
static int
ata_macio_locknoop(struct ata_channel *ch, int type)
{
return (ch->unit);
}
static void
ata_macio_setmode(struct ata_device *atadev, int mode)
{
#if 0
atadev->mode = ata_limit_mode(atadev, mode, ATA_PIO_MAX);
#endif
atadev->mode = ATA_PIO;
}
static int
ata_macio_probe(device_t dev)
{
const char *type = ofw_bus_get_type(dev);
struct ata_channel *ch;
struct resource *mem;
int rid, i;
if (strcmp(type, "ata") != 0 &&
strcmp(type, "ide") != 0)
return (ENXIO);
ch = device_get_softc(dev);
bzero(ch, sizeof(struct ata_channel));
rid = 0;
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_MACIO_REGGAP;
}
ch->r_io[ATA_ALTSTAT].res = mem;
ch->r_io[ATA_ALTSTAT].offset = ATA_MACIO_ALTOFFSET;
ch->unit = 0;
ch->flags |= ATA_USE_16BIT;
ch->locking = ata_macio_locknoop;
ch->device[MASTER].setmode = ata_macio_setmode;
ch->device[SLAVE].setmode = ata_macio_setmode;
ata_generic_hw(ch);
return (ata_probe(dev));
}
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