/* $NetBSD: slide.c,v 1.29 2013/10/07 19:51:55 jakllsch Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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 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 __KERNEL_RCSID(0, "$NetBSD: slide.c,v 1.29 2013/10/07 19:51:55 jakllsch Exp $"); #include #include #include #include #include #include #include static void sl82c105_chip_map(struct pciide_softc*, const struct pci_attach_args*); static void sl82c105_setup_channel(struct ata_channel*); static int slide_match(device_t, cfdata_t, void *); static void slide_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(slide, sizeof(struct pciide_softc), slide_match, slide_attach, pciide_detach, NULL); static const struct pciide_product_desc pciide_symphony_products[] = { { PCI_PRODUCT_SYMPHONY_82C105, 0, "Symphony Labs 82C105 IDE controller", sl82c105_chip_map, }, { 0, 0, NULL, NULL, } }; static const struct pciide_product_desc pciide_winbond_products[] = { { PCI_PRODUCT_WINBOND_W83C553F_1, 0, "Winbond W83C553F IDE controller", sl82c105_chip_map, }, { 0, 0, NULL, NULL, } }; static int slide_match(device_t parent, cfdata_t match, void *aux) { struct pci_attach_args *pa = aux; if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) { if (pciide_lookup_product(pa->pa_id, pciide_symphony_products)) return (2); } if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) { if (pciide_lookup_product(pa->pa_id, pciide_winbond_products)) return (2); } return (0); } static void slide_attach(device_t parent, device_t self, void *aux) { struct pci_attach_args *pa = aux; struct pciide_softc *sc = device_private(self); const struct pciide_product_desc *pp = NULL; sc->sc_wdcdev.sc_atac.atac_dev = self; if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) pp = pciide_lookup_product(pa->pa_id, pciide_symphony_products); if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) pp = pciide_lookup_product(pa->pa_id, pciide_winbond_products); if (pp == NULL) panic("slide_attach"); pciide_common_attach(sc, pa, pp); } static int sl82c105_bugchk(const struct pci_attach_args *pa) { if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_WINBOND || PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_WINBOND_W83C553F_0) return (0); if (PCI_REVISION(pa->pa_class) <= 0x05) return (1); return (0); } static void sl82c105_chip_map(struct pciide_softc *sc, const struct pci_attach_args *pa) { struct pciide_channel *cp; pcireg_t interface, idecr; int channel; if (pciide_chipen(sc, pa) == 0) return; aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, "bus-master DMA support present"); /* * Check to see if we're part of the Winbond 83c553 Southbridge. * If so, we need to disable DMA on rev. <= 5 of the southbridge. */ if (pci_find_device(NULL, sl82c105_bugchk)) { aprint_verbose(" but disabled due to 83c553 rev. <= 0x05"); sc->sc_dma_ok = 0; } else pciide_mapreg_dma(sc, pa); aprint_verbose("\n"); sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA32 | ATAC_CAP_DATA16; sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; if (sc->sc_dma_ok) { sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; sc->sc_wdcdev.irqack = pciide_irqack; sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; } sc->sc_wdcdev.sc_atac.atac_set_modes = sl82c105_setup_channel; sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; sc->sc_wdcdev.wdc_maxdrives = 2; idecr = pci_conf_read(sc->sc_pc, sc->sc_tag, SYMPH_IDECSR); interface = PCI_INTERFACE(pa->pa_class); wdc_allocate_regs(&sc->sc_wdcdev); 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; if ((channel == 0 && (idecr & IDECR_P0EN) == 0) || (channel == 1 && (idecr & IDECR_P1EN) == 0)) { aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, "%s channel ignored (disabled)\n", cp->name); cp->ata_channel.ch_flags |= ATACH_DISABLED; continue; } pciide_mapchan(pa, cp, interface, pciide_pci_intr); } } static void sl82c105_setup_channel(struct ata_channel *chp) { struct ata_drive_datas *drvp; struct pciide_channel *cp = CHAN_TO_PCHAN(chp); struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); int pxdx_reg, drive, s; pcireg_t pxdx; /* Set up DMA if needed. */ pciide_channel_dma_setup(cp); for (drive = 0; drive < 2; drive++) { pxdx_reg = ((chp->ch_channel == 0) ? SYMPH_P0D0CR : SYMPH_P1D0CR) + (drive * 4); pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, pxdx_reg); pxdx &= ~(PxDx_CMD_ON_MASK|PxDx_CMD_OFF_MASK); pxdx &= ~(PxDx_PWEN|PxDx_RDYEN|PxDx_RAEN); drvp = &chp->ch_drive[drive]; /* If no drive, skip. */ if (drvp->drive_type == ATA_DRIVET_NONE) { pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); continue; } if (drvp->drive_flags & ATA_DRIVE_DMA) { /* * Timings will be used for both PIO and DMA, * so adjust DMA mode if needed. */ if (drvp->PIO_mode >= 3) { if ((drvp->DMA_mode + 2) > drvp->PIO_mode) drvp->DMA_mode = drvp->PIO_mode - 2; if (drvp->DMA_mode < 1) { /* * Can't mix both PIO and DMA. * Disable DMA. */ s = splbio(); drvp->drive_flags &= ~ATA_DRIVE_DMA; splx(s); } } else { /* * Can't mix both PIO and DMA. Disable * DMA. */ s = splbio(); drvp->drive_flags &= ~ATA_DRIVE_DMA; splx(s); } } if (drvp->drive_flags & ATA_DRIVE_DMA) { /* Use multi-word DMA. */ pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_on << PxDx_CMD_ON_SHIFT; pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_off; } else { pxdx |= symph_pio_times[drvp->PIO_mode].cmd_on << PxDx_CMD_ON_SHIFT; pxdx |= symph_pio_times[drvp->PIO_mode].cmd_off; } /* XXX PxDx_PWEN? PxDx_RDYEN? PxDx_RAEN? */ /* ...and set the mode for this drive. */ pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); } }