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freebsd/sys/dev/ata/ata-card.c

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/*-
* Copyright (c) 1998,1999,2000,2001 S<EFBFBD>ren Schmidt
* 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/kernel.h>
#include <sys/disk.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/bio.h>
#include <sys/malloc.h>
#include <sys/devicestat.h>
#include <sys/sysctl.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/ata/ata-all.h>
static int
ata_pccard_probe(device_t dev)
{
struct ata_softc *scp = device_get_softc(dev);
struct resource *io;
int 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 ENOMEM;
/* 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);
bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
/*
* 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
return ENOMEM;
scp->channel = 0;
scp->flags |= (ATA_USE_16BIT | ATA_NO_SLAVE);
return ata_probe(dev);
}
static device_method_t ata_pccard_methods[] = {
/* device interface */
DEVMETHOD(device_probe, ata_pccard_probe),
DEVMETHOD(device_attach, ata_attach),
DEVMETHOD(device_detach, ata_detach),
{ 0, 0 }
};
static driver_t ata_pccard_driver = {
"ata",
ata_pccard_methods,
sizeof(struct ata_softc),
};
DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);