NetBSD/sys/dev/pci/artsata.c

/*	$NetBSD: artsata.c,v 1.4 2004/08/20 06:39:38 thorpej Exp $	*/

/*-
 * Copyright (c) 2003 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe of Wasabi Systems, Inc.
 *
 * 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.
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the NetBSD
 *	Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 FOUNDATION OR CONTRIBUTORS
 * 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/param.h>
#include <sys/systm.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciidereg.h>
#include <dev/pci/pciidevar.h>

static void artisea_chip_map(struct pciide_softc*, struct pci_attach_args *);

static int  artsata_match(struct device *, struct cfdata *, void *);
static void artsata_attach(struct device *, struct device *, void *);

static const struct pciide_product_desc pciide_artsata_products[] =  {
	{ PCI_PRODUCT_INTEL_31244,
	  0,
	  "Intel 31244 Serial ATA Controller",
	  artisea_chip_map,
	},
	{ 0,
	  0,
	  NULL,
	  NULL
	}
};

CFATTACH_DECL(artsata, sizeof(struct pciide_softc),
    artsata_match, artsata_attach, NULL, NULL);

static int
artsata_match(struct device *parent, struct cfdata *match, void *aux)
{
	struct pci_attach_args *pa = aux;

	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_INTEL) {
		if (pciide_lookup_product(pa->pa_id, pciide_artsata_products))
			return (2);
	}
	return (0);
}

static void
artsata_attach(struct device *parent, struct device *self, void *aux)
{
	struct pci_attach_args *pa = aux;
	struct pciide_softc *sc = (struct pciide_softc *)self;

	pciide_common_attach(sc, pa,
	    pciide_lookup_product(pa->pa_id, pciide_artsata_products));

}

static void
artisea_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
{
	struct pciide_channel *cp;
	bus_size_t cmdsize, ctlsize;
	pcireg_t interface;
	int channel;

	if (pciide_chipen(sc, pa) == 0)
		return;

	aprint_normal("%s: bus-master DMA support present",
	    sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
#ifndef PCIIDE_I31244_ENABLEDMA
	if (sc->sc_pp->ide_product == PCI_PRODUCT_INTEL_31244 &&
	    PCI_REVISION(pa->pa_class) == 0) {
		aprint_normal(" but disabled due to rev. 0");
		sc->sc_dma_ok = 0;
	} else
#endif
		pciide_mapreg_dma(sc, pa);
	aprint_normal("\n");

	/*
	 * XXX Configure LEDs to show activity.
	 */

	sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
	sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
	if (sc->sc_dma_ok) {
		sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA;
		sc->sc_wdcdev.irqack = pciide_irqack;
		sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
		sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
	}
	sc->sc_wdcdev.sc_atac.atac_set_modes = sata_setup_channel;

	sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
	sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS;

	wdc_allocate_regs(&sc->sc_wdcdev);

	interface = PCI_INTERFACE(pa->pa_class);

	for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
	     channel++) {
		cp = &sc->pciide_channels[channel];
		if (pciide_chansetup(sc, channel, interface) == 0)
			continue;
		pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
		    pciide_pci_intr);
	}
}