freebsd-dev/sys/dev/ata/ata-isa.c
2004-04-30 16:21:34 +00:00

139 lines
4.4 KiB
C

/*-
* Copyright (c) 1998 - 2004 Søren Schmidt <sos@FreeBSD.org>
* 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,
* without modification, immediately at the beginning of the file.
* 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("$FreeBSD$");
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ata.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 <isa/isavar.h>
#include <dev/ata/ata-all.h>
/* local vars */
static struct isa_pnp_id ata_ids[] = {
{0x0006d041, "Generic ESDI/IDE/ATA controller"}, /* PNP0600 */
{0x0106d041, "Plus Hardcard II"}, /* PNP0601 */
{0x0206d041, "Plus Hardcard IIXL/EZ"}, /* PNP0602 */
{0x0306d041, "Generic ATA"}, /* PNP0603 */
/* PNP0680 */
{0x8006d041, "Standard bus mastering IDE hard disk controller"},
{0}
};
static void
ata_isa_locknoop(struct ata_channel *ch, int type)
{
}
static void
ata_isa_setmode(struct ata_device *atadev, int mode)
{
atadev->mode = ata_limit_mode(atadev, mode, ATA_PIO_MAX);
}
static int
ata_isa_probe(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
struct resource *io = NULL, *altio = NULL;
u_long tmp;
int i, rid;
/* check isapnp ids */
if (ISA_PNP_PROBE(device_get_parent(dev), dev, ata_ids) == ENXIO)
return ENXIO;
/* allocate the io port range */
rid = ATA_IOADDR_RID;
io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
ATA_IOSIZE, RF_ACTIVE);
if (!io)
return ENXIO;
/* set the altport range */
if (bus_get_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, &tmp, &tmp)) {
bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
rman_get_start(io) + ATA_ALTOFFSET, ATA_ALTIOSIZE);
}
/* allocate the altport range */
rid = ATA_ALTADDR_RID;
altio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
ATA_ALTIOSIZE, RF_ACTIVE);
if (!altio) {
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
return ENXIO;
}
/* setup the resource vectors */
for (i = ATA_DATA; i <= ATA_STATUS; i++) {
ch->r_io[i].res = io;
ch->r_io[i].offset = i;
}
ch->r_io[ATA_ALTSTAT].res = altio;
ch->r_io[ATA_ALTSTAT].offset = 0;
/* initialize softc for this channel */
ch->unit = 0;
ch->flags |= ATA_USE_16BIT;
ch->locking = ata_isa_locknoop;
ch->device[MASTER].setmode = ata_isa_setmode;
ch->device[SLAVE].setmode = ata_isa_setmode;
ata_generic_hw(ch);
return ata_probe(dev);
}
static device_method_t ata_isa_methods[] = {
/* device interface */
DEVMETHOD(device_probe, ata_isa_probe),
DEVMETHOD(device_attach, ata_attach),
DEVMETHOD(device_resume, ata_resume),
{ 0, 0 }
};
static driver_t ata_isa_driver = {
"ata",
ata_isa_methods,
sizeof(struct ata_channel),
};
DRIVER_MODULE(ata, isa, ata_isa_driver, ata_devclass, 0, 0);