137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
/*-
|
|
* 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 <ata_if.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 void ata_macio_setmode(device_t parent, device_t dev);
|
|
|
|
static device_method_t ata_macio_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, ata_macio_probe),
|
|
DEVMETHOD(device_attach, ata_attach),
|
|
|
|
/* ATA interface */
|
|
DEVMETHOD(ata_setmode, ata_macio_setmode),
|
|
{ 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);
|
|
MODULE_DEPEND(ata, ata, 1, 1, 1);
|
|
|
|
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_COMMAND; i++) {
|
|
ch->r_io[i].res = mem;
|
|
ch->r_io[i].offset = i * ATA_MACIO_REGGAP;
|
|
}
|
|
ch->r_io[ATA_CONTROL].res = mem;
|
|
ch->r_io[ATA_CONTROL].offset = ATA_MACIO_ALTOFFSET;
|
|
ata_default_registers(dev);
|
|
|
|
ch->unit = 0;
|
|
ch->flags |= ATA_USE_16BIT;
|
|
ata_generic_hw(dev);
|
|
|
|
return (ata_probe(dev));
|
|
}
|
|
|
|
static void
|
|
ata_macio_setmode(device_t parent, device_t dev)
|
|
{
|
|
struct ata_device *atadev = device_get_softc(dev);
|
|
|
|
/* TODO bang macio speed register */
|
|
atadev->mode = ATA_PIO;
|
|
}
|
|
|