freebsd-skq/sys/dev/ata/ata-card.c
sos 1aa8f29ccf Second round of updates to the ATA driver.
Clean up the DMA interface too much unneeded stuff crept in with
the busdma code back when.

Modify the ATA_IN* / ATA_OUT* macros so that resource and offset
are gotten from a table. That allows for new chipsets that doesn't
nessesarily have things ordered the good old way. This also removes
the need for the wierd PC98 resource functions.

Tested on: i386, PC98, Alpha, Sparc64
2003-03-29 13:37:09 +00:00

181 lines
5.6 KiB
C

/*-
* Copyright (c) 1998 - 2003 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.
*
* $FreeBSD$
*/
#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 <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/ata/ata-all.h>
#include <dev/pccard/pccardreg.h>
#include <dev/pccard/pccardvar.h>
#include <dev/pccard/pccarddevs.h>
static int
ata_pccard_match(device_t dev)
{
u_int32_t fcn = PCCARD_FUNCTION_UNSPEC;
int error = 0;
error = pccard_get_function(dev, &fcn);
if (error != 0)
return (error);
/* if it says its a disk we should register it */
if (fcn == PCCARD_FUNCTION_DISK)
return (0);
/* other devices might need to be matched here */
return(ENXIO);
}
static void
ata_pccard_locknoop(struct ata_channel *ch, int type)
{
}
static void
ata_pccard_setmode(struct ata_device *atadev, int mode)
{
atadev->mode = ata_limit_mode(atadev, mode, ATA_PIO_MAX);
}
static int
ata_pccard_probe(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
struct resource *io, *altio;
int i, rid, len, start, end;
u_long tmp;
/* allocate the io range to get start and length */
rid = ATA_IOADDR_RID;
len = bus_get_resource_count(dev, SYS_RES_IOPORT, rid);
io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
ATA_IOSIZE, RF_ACTIVE);
if (!io)
return ENXIO;
/* reallocate the io address to only cover the io ports */
start = rman_get_start(io);
end = start + ATA_IOSIZE - 1;
bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
start, end, ATA_IOSIZE, RF_ACTIVE);
/*
* if we got more than the default ATA_IOSIZE ports, this is likely
* a pccard system where the altio ports are located at offset 14
* otherwise its the normal altio offset
*/
if (bus_get_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, &tmp, &tmp)) {
if (len > ATA_IOSIZE) {
bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
start + ATA_PCCARD_ALTOFFSET, ATA_ALTIOSIZE);
}
else {
bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
start + ATA_ALTOFFSET, ATA_ALTIOSIZE);
}
}
else {
bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
return ENXIO;
}
/* 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 | ATA_NO_SLAVE);
ch->locking = ata_pccard_locknoop;
ch->device[MASTER].setmode = ata_pccard_setmode;
ch->device[SLAVE].setmode = ata_pccard_setmode;
return ata_probe(dev);
}
static int
ata_pccard_detach(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
int i;
ata_detach(dev);
bus_release_resource(dev, SYS_RES_IOPORT,
ATA_ALTADDR_RID, ch->r_io[ATA_ALTSTAT].res);
bus_release_resource(dev, SYS_RES_IOPORT,
ATA_IOADDR_RID, ch->r_io[ATA_DATA].res);
for (i = ATA_DATA; i <= ATA_MAX_RES; i++)
ch->r_io[i].res = NULL;
return 0;
}
static device_method_t ata_pccard_methods[] = {
/* device interface */
DEVMETHOD(device_probe, pccard_compat_probe),
DEVMETHOD(device_attach, pccard_compat_attach),
DEVMETHOD(device_detach, ata_pccard_detach),
/* Card interface */
DEVMETHOD(card_compat_match, ata_pccard_match),
DEVMETHOD(card_compat_probe, ata_pccard_probe),
DEVMETHOD(card_compat_attach, ata_attach),
{ 0, 0 }
};
static driver_t ata_pccard_driver = {
"ata",
ata_pccard_methods,
sizeof(struct ata_channel),
};
DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);