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/*-
* Copyright (c) 1998 - 2008 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.
*
* 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/module.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/ata.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.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 <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-pci.h>
#include <ata_if.h>
/* local prototypes */
static int ata_cypress_chipinit(device_t dev);
static int ata_cypress_setmode(device_t dev, int target, int mode);
/*
* Cypress chipset support functions
*/
static int
ata_cypress_probe(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
/*
* the Cypress chip is a mess, it contains two ATA functions, but
* both channels are visible on the first one.
* simply ignore the second function for now, as the right
* solution (ignoring the second channel on the first function)
* doesn't work with the crappy ATA interrupt setup on the alpha.
*/
if (pci_get_devid(dev) == ATA_CYPRESS_82C693 &&
pci_get_function(dev) == 1 &&
pci_get_subclass(dev) == PCIS_STORAGE_IDE) {
device_set_desc(dev, "Cypress 82C693 ATA controller");
ctlr->chipinit = ata_cypress_chipinit;
return (BUS_PROBE_DEFAULT);
}
return ENXIO;
}
static int
ata_cypress_chipinit(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(dev);
if (ata_setup_interrupt(dev, ata_generic_intr))
return ENXIO;
ctlr->setmode = ata_cypress_setmode;
return 0;
}
static int
ata_cypress_setmode(device_t dev, int target, int mode)
{
device_t parent = device_get_parent(dev);
struct ata_channel *ch = device_get_softc(dev);
mode = min(mode, ATA_WDMA2);
/* XXX SOS missing WDMA0+1 + PIO modes */
if (mode == ATA_WDMA2) {
pci_write_config(parent, ch->unit ? 0x4e : 0x4c, 0x2020, 2);
}
/* we could set PIO mode timings, but we assume the BIOS did that */
return (mode);
}
ATA_DECLARE_DRIVER(ata_cypress);
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