diff options
Diffstat (limited to 'sys/arch/i386/pci/pciide_machdep.c')
| -rw-r--r-- | sys/arch/i386/pci/pciide_machdep.c | 132 |
1 files changed, 131 insertions, 1 deletions
diff --git a/sys/arch/i386/pci/pciide_machdep.c b/sys/arch/i386/pci/pciide_machdep.c index 6efa9eae90b..180267ad684 100644 --- a/sys/arch/i386/pci/pciide_machdep.c +++ b/sys/arch/i386/pci/pciide_machdep.c @@ -1,6 +1,31 @@ -/* $OpenBSD: pciide_machdep.c,v 1.6 2006/09/19 11:06:34 jsg Exp $ */ +/* $OpenBSD: pciide_machdep.c,v 1.7 2009/01/04 10:37:40 jsg Exp $ */ /* $NetBSD: pciide_machdep.c,v 1.2 1999/02/19 18:01:27 mycroft Exp $ */ +/*- + * Copyright (c) 2007 Juan Romero Pardines. + * 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. + * 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. + */ + /* * Copyright (c) 1998 Christopher G. Demetriou. All rights reserved. * @@ -52,6 +77,11 @@ #include <dev/isa/isavar.h> +#include <machine/cpufunc.h> +#include <i386/pci/pciide_gcsc_reg.h> + +void gcsc_setup_channel(struct channel_softc *); + void * pciide_machdep_compat_intr_establish(struct device *dev, struct pci_attach_args *pa, int chan, int (*func)(void *), void *arg) @@ -70,3 +100,103 @@ pciide_machdep_compat_intr_disestablish(pci_chipset_tag_t pc, void *cookie) { isa_intr_disestablish(NULL, cookie); } + +void +gcsc_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa) +{ + struct pciide_channel *cp; + pcireg_t interface; + bus_size_t cmdsize, ctlsize; + + printf(": DMA"); + pciide_mapreg_dma(sc, pa); + + sc->sc_wdcdev.cap = WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32 | + WDC_CAPABILITY_MODE; + if (sc->sc_dma_ok) { + sc->sc_wdcdev.cap |= WDC_CAPABILITY_DMA | WDC_CAPABILITY_UDMA; + sc->sc_wdcdev.cap |= WDC_CAPABILITY_IRQACK; + sc->sc_wdcdev.irqack = pciide_irqack; + } + + sc->sc_wdcdev.PIO_cap = 4; + sc->sc_wdcdev.DMA_cap = 2; + sc->sc_wdcdev.UDMA_cap = 4; + sc->sc_wdcdev.set_modes = gcsc_setup_channel; + sc->sc_wdcdev.channels = sc->wdc_chanarray; + sc->sc_wdcdev.nchannels = 1; + + interface = PCI_INTERFACE(pa->pa_class); + + pciide_print_channels(sc->sc_wdcdev.nchannels, interface); + + cp = &sc->pciide_channels[0]; + + if (pciide_chansetup(sc, 0, interface) == 0) + return; + + pciide_map_compat_intr(pa, cp, 0, interface); + if (cp->hw_ok == 0) + return; + + pciide_mapchan(pa, cp, interface, + &cmdsize, &ctlsize, pciide_pci_intr); + if (cp->hw_ok == 0) { + pciide_unmap_compat_intr(pa, cp, 0, interface); + return; + } + + gcsc_setup_channel(&cp->wdc_channel); +} + +void +gcsc_setup_channel(struct channel_softc *chp) +{ + struct pciide_channel *cp = (struct pciide_channel *)chp; + struct ata_drive_datas *drvp; + uint64_t reg = 0; + int drive, s; + + pciide_channel_dma_setup(cp); + + for (drive = 0; drive < 2; drive++) { + drvp = &chp->ch_drive[drive]; + if ((drvp->drive_flags & DRIVE) == 0) + continue; + + reg = rdmsr(drive ? GCSC_ATAC_CH0D1_DMA : + GCSC_ATAC_CH0D0_DMA); + + if (drvp->drive_flags & DRIVE_UDMA) { + s = splbio(); + drvp->drive_flags &= ~DRIVE_DMA; + splx(s); + /* Enable the Ultra DMA mode bit */ + reg |= GCSC_ATAC_DMA_SEL; + /* set the Ultra DMA mode */ + reg |= gcsc_udma_timings[drvp->UDMA_mode]; + + wrmsr(drive ? GCSC_ATAC_CH0D1_DMA : + GCSC_ATAC_CH0D0_DMA, reg); + + } else if (drvp->drive_flags & DRIVE_DMA) { + /* Enable the Multi-word DMA bit */ + reg &= ~GCSC_ATAC_DMA_SEL; + /* set the Multi-word DMA mode */ + reg |= gcsc_mdma_timings[drvp->DMA_mode]; + + wrmsr(drive ? GCSC_ATAC_CH0D1_DMA : + GCSC_ATAC_CH0D0_DMA, reg); + } + + /* Always use PIO Format 1. */ + wrmsr(drive ? GCSC_ATAC_CH0D1_DMA : + GCSC_ATAC_CH0D0_DMA, reg | GCSC_ATAC_PIO_FORMAT); + + /* Set PIO mode */ + wrmsr(drive ? GCSC_ATAC_CH0D1_PIO : GCSC_ATAC_CH0D0_PIO, + gcsc_pio_timings[drvp->PIO_mode]); + } + + pciide_print_modes(cp); +} |