197 lines
7.0 KiB
C
197 lines
7.0 KiB
C
/* $NetBSD: ixpide.c,v 1.4 2005/07/04 01:20:37 augustss Exp $ */
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/*
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* Copyright (c) 2004 The NetBSD Foundation.
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* All rights reserved.
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*
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* This code is derived from software contributed to the NetBSD Foundation
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* by Quentin Garnier.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ixpide.c,v 1.4 2005/07/04 01:20:37 augustss Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/pciidereg.h>
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#include <dev/pci/pciidevar.h>
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#include <dev/pci/pciide_ixp_reg.h>
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static int ixpide_match(struct device *, struct cfdata *, void *);
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static void ixpide_attach(struct device *, struct device *, void *);
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static void ixp_chip_map(struct pciide_softc *, struct pci_attach_args *);
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static void ixp_setup_channel(struct ata_channel *);
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CFATTACH_DECL(ixpide, sizeof(struct pciide_softc),
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ixpide_match, ixpide_attach, NULL, NULL);
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static const char ixpdesc[] = "ATI Technologies IXP IDE Controller";
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static const struct pciide_product_desc pciide_ixpide_products[] = {
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{ PCI_PRODUCT_ATI_IXP_IDE_200, 0, ixpdesc, ixp_chip_map },
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{ PCI_PRODUCT_ATI_IXP_IDE_300, 0, ixpdesc, ixp_chip_map },
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{ PCI_PRODUCT_ATI_IXP_IDE_400, 0, ixpdesc, ixp_chip_map },
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{ PCI_PRODUCT_ATI_SB400_SATA_1, 0, ixpdesc, ixp_chip_map },
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{ PCI_PRODUCT_ATI_SB400_SATA_2, 0, ixpdesc, ixp_chip_map },
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{ 0, 0, NULL, NULL }
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};
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static int
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ixpide_match(struct device *parent, struct cfdata *cfdata, void *aux)
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{
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struct pci_attach_args *pa = (struct pci_attach_args *)aux;
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ATI &&
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PCI_CLASS(pa->pa_class) == PCI_CLASS_MASS_STORAGE &&
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PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE &&
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pciide_lookup_product(pa->pa_id, pciide_ixpide_products))
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return (2);
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return (0);
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}
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static void
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ixpide_attach(struct device *parent, struct device *self, void *aux)
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{
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struct pci_attach_args *pa = aux;
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struct pciide_softc *sc = (struct pciide_softc *)self;
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pciide_common_attach(sc, pa,
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pciide_lookup_product(pa->pa_id, pciide_ixpide_products));
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}
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static void
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ixp_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
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{
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struct pciide_channel *cp;
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int channel;
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pcireg_t interface;
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bus_size_t cmdsize, ctlsize;
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if (pciide_chipen(sc, pa) == 0)
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return;
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aprint_normal("%s: bus-master DMA support present",
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sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
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pciide_mapreg_dma(sc, pa);
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aprint_normal("\n");
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sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
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if (sc->sc_dma_ok) {
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sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA;
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sc->sc_wdcdev.irqack = pciide_irqack;
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}
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sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
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sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
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sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
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sc->sc_wdcdev.sc_atac.atac_set_modes = ixp_setup_channel;
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sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
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sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS;
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interface = PCI_INTERFACE(pa->pa_class);
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wdc_allocate_regs(&sc->sc_wdcdev);
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for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
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channel++) {
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cp = &sc->pciide_channels[channel];
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if (pciide_chansetup(sc, channel, interface) == 0)
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continue;
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pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
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pciide_pci_intr);
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}
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}
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/* Values from linux driver */
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static const uint8_t ixp_pio_timings[] = {
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0x5d, 0x47, 0x34, 0x22, 0x20
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};
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static const uint8_t ixp_mdma_timings[] = {
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0x77, 0x21, 0x20
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};
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static void
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ixp_setup_channel(struct ata_channel *chp)
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{
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int drive, s;
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struct pciide_channel *cp = CHAN_TO_PCHAN(chp);
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pcireg_t udma, mdma_timing, pio, pio_timing;
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struct ata_drive_datas *drvp;
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struct pciide_softc *sc = CHAN_TO_PCIIDE(chp);
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pio_timing = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_PIO_TIMING);
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pio = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_PIO_CTL);
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mdma_timing = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_MDMA_TIMING);
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udma = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_UDMA_CTL);
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pciide_channel_dma_setup(cp);
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for (drive = 0; drive < 2; drive++) {
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drvp = &chp->ch_drive[drive];
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if ((drvp->drive_flags & DRIVE) == 0)
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continue;
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if (drvp->drive_flags & DRIVE_UDMA) {
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s = splbio();
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drvp->drive_flags &= ~DRIVE_DMA;
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splx(s);
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IXP_UDMA_ENABLE(udma, chp->ch_channel, drive);
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IXP_SET_MODE(udma, chp->ch_channel, drive, drvp->UDMA_mode);
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} else if (drvp->drive_flags & DRIVE_DMA) {
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IXP_UDMA_DISABLE(udma, chp->ch_channel, drive);
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IXP_SET_TIMING(mdma_timing, chp->ch_channel, drive,
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ixp_mdma_timings[drvp->DMA_mode]);
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} else
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IXP_UDMA_DISABLE(udma, chp->ch_channel, drive);
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/*
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* Set PIO mode and timings
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* Linux driver avoids PIO mode 1, let's do it too.
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*/
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if (drvp->PIO_mode == 1)
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drvp->PIO_mode = 0;
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IXP_SET_MODE(pio, chp->ch_channel, drive, drvp->PIO_mode);
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IXP_SET_TIMING(pio_timing, chp->ch_channel, drive,
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ixp_pio_timings[drvp->PIO_mode]);
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}
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pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_UDMA_CTL, udma);
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pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_MDMA_TIMING, mdma_timing);
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pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_PIO_CTL, pio);
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pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_PIO_TIMING, pio_timing);
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ATADEBUG_PRINT(("ixp_setup_channel: udma = %08x, mdma_timing = %08x, pio_mode = %08x,"
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" pio_timing = %08x\n", udma, mdma_timing, pio, pio_timing), DEBUG_PROBE);
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}
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