/*-
 * 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.
 */

/* local prototypes */
static int ata_micron_chipinit(device_t dev);
static void ata_micron_setmode(device_t dev, int mode);

/*
 * Micron chipset support functions
 */
int
ata_micron_ident(device_t dev)
{
    struct ata_pci_controller *ctlr = device_get_softc(dev);

    if (pci_get_devid(dev) == ATA_MICRON_RZ1000 ||
	pci_get_devid(dev) == ATA_MICRON_RZ1001) {
	device_set_desc(dev,
	    "RZ 100? ATA controller !WARNING! data loss/corruption risk");
	ctlr->chipinit = ata_micron_chipinit;
	return 0;
    }
    else
	return ENXIO;
}

static int
ata_micron_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_micron_setmode;
    return 0;
}

static void
ata_micron_setmode(device_t dev, int mode)
{
    struct ata_device *atadev = device_get_softc(dev);

    mode = ata_limit_mode(dev, mode, ATA_UDMA2);
    mode = ata_check_80pin(dev, mode);
    if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
	atadev->mode = mode;
}