1 /* $NetBSD: ixpide.c,v 1.17 2010/11/05 18:07:24 jakllsch Exp $ */ 2 3 /* 4 * Copyright (c) 2004 The NetBSD Foundation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: ixpide.c,v 1.17 2010/11/05 18:07:24 jakllsch Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 35 #include <dev/pci/pcivar.h> 36 #include <dev/pci/pcidevs.h> 37 #include <dev/pci/pciidereg.h> 38 #include <dev/pci/pciidevar.h> 39 #include <dev/pci/pciide_ixp_reg.h> 40 41 static bool ixpide_resume(device_t, const pmf_qual_t *); 42 static bool ixpide_suspend(device_t, const pmf_qual_t *); 43 static int ixpide_match(device_t, cfdata_t, void *); 44 static void ixpide_attach(device_t, device_t, void *); 45 46 static void ixp_chip_map(struct pciide_softc *, struct pci_attach_args *); 47 static void ixp_setup_channel(struct ata_channel *); 48 49 CFATTACH_DECL_NEW(ixpide, sizeof(struct pciide_softc), 50 ixpide_match, ixpide_attach, NULL, NULL); 51 52 static const char ixpdesc[] = "ATI Technologies IXP IDE Controller"; 53 54 static const struct pciide_product_desc pciide_ixpide_products[] = { 55 { PCI_PRODUCT_ATI_IXP_IDE_200, 0, ixpdesc, ixp_chip_map }, 56 { PCI_PRODUCT_ATI_IXP_IDE_300, 0, ixpdesc, ixp_chip_map }, 57 { PCI_PRODUCT_ATI_IXP_IDE_400, 0, ixpdesc, ixp_chip_map }, 58 { PCI_PRODUCT_ATI_IXP_IDE_600, 0, ixpdesc, ixp_chip_map }, 59 { PCI_PRODUCT_ATI_SB400_SATA_1, 0, ixpdesc, ixp_chip_map }, 60 { PCI_PRODUCT_ATI_SB400_SATA_2, 0, ixpdesc, ixp_chip_map }, 61 { PCI_PRODUCT_ATI_SB600_SATA_1, 0, ixpdesc, ixp_chip_map }, 62 { PCI_PRODUCT_ATI_SB600_SATA_2, 0, ixpdesc, ixp_chip_map }, 63 { PCI_PRODUCT_ATI_SB700_SATA_IDE, 0, ixpdesc, ixp_chip_map }, 64 { PCI_PRODUCT_ATI_SB700_IDE, 0, ixpdesc, ixp_chip_map }, 65 { 0, 0, NULL, NULL } 66 }; 67 68 static int 69 ixpide_match(device_t parent, cfdata_t cfdata, void *aux) 70 { 71 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 72 73 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ATI && 74 PCI_CLASS(pa->pa_class) == PCI_CLASS_MASS_STORAGE && 75 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE && 76 pciide_lookup_product(pa->pa_id, pciide_ixpide_products)) 77 return (2); 78 return (0); 79 } 80 81 static void 82 ixpide_attach(device_t parent, device_t self, void *aux) 83 { 84 struct pci_attach_args *pa = aux; 85 struct pciide_softc *sc = device_private(self); 86 87 sc->sc_wdcdev.sc_atac.atac_dev = self; 88 89 pciide_common_attach(sc, pa, 90 pciide_lookup_product(pa->pa_id, pciide_ixpide_products)); 91 92 if (!pmf_device_register(self, ixpide_suspend, ixpide_resume)) 93 aprint_error_dev(self, "couldn't establish power handler\n"); 94 } 95 96 static void 97 ixp_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa) 98 { 99 struct pciide_channel *cp; 100 int channel; 101 pcireg_t interface; 102 103 if (pciide_chipen(sc, pa) == 0) 104 return; 105 106 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 107 "bus-master DMA support present"); 108 pciide_mapreg_dma(sc, pa); 109 aprint_verbose("\n"); 110 111 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32; 112 if (sc->sc_dma_ok) { 113 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA; 114 sc->sc_wdcdev.irqack = pciide_irqack; 115 } 116 117 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 118 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 119 sc->sc_wdcdev.sc_atac.atac_udma_cap = 6; 120 sc->sc_wdcdev.sc_atac.atac_set_modes = ixp_setup_channel; 121 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 122 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 123 124 interface = PCI_INTERFACE(pa->pa_class); 125 126 wdc_allocate_regs(&sc->sc_wdcdev); 127 128 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 129 channel++) { 130 cp = &sc->pciide_channels[channel]; 131 if (pciide_chansetup(sc, channel, interface) == 0) 132 continue; 133 pciide_mapchan(pa, cp, interface, pciide_pci_intr); 134 } 135 } 136 137 /* Values from linux driver */ 138 static const uint8_t ixp_pio_timings[] = { 139 0x5d, 0x47, 0x34, 0x22, 0x20 140 }; 141 142 static const uint8_t ixp_mdma_timings[] = { 143 0x77, 0x21, 0x20 144 }; 145 146 static bool 147 ixpide_resume(device_t dv, const pmf_qual_t *qual) 148 { 149 struct pciide_softc *sc = device_private(dv); 150 151 pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_MDMA_TIMING, 152 sc->sc_pm_reg[0]); 153 pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_PIO_TIMING, 154 sc->sc_pm_reg[1]); 155 156 return true; 157 } 158 159 static bool 160 ixpide_suspend(device_t dv, const pmf_qual_t *qual) 161 { 162 struct pciide_softc *sc = device_private(dv); 163 164 sc->sc_pm_reg[0] = pci_conf_read(sc->sc_pc, sc->sc_tag, 165 IXP_MDMA_TIMING); 166 sc->sc_pm_reg[1] = pci_conf_read(sc->sc_pc, sc->sc_tag, 167 IXP_PIO_TIMING); 168 169 return true; 170 } 171 172 static void 173 ixp_setup_channel(struct ata_channel *chp) 174 { 175 int drive, s; 176 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 177 pcireg_t udma, mdma_timing, pio, pio_timing; 178 struct ata_drive_datas *drvp; 179 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 180 181 pio_timing = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_PIO_TIMING); 182 pio = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_PIO_CTL); 183 mdma_timing = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_MDMA_TIMING); 184 udma = pci_conf_read(sc->sc_pc, sc->sc_tag, IXP_UDMA_CTL); 185 186 pciide_channel_dma_setup(cp); 187 188 for (drive = 0; drive < 2; drive++) { 189 drvp = &chp->ch_drive[drive]; 190 if ((drvp->drive_flags & DRIVE) == 0) 191 continue; 192 if (drvp->drive_flags & DRIVE_UDMA) { 193 s = splbio(); 194 drvp->drive_flags &= ~DRIVE_DMA; 195 splx(s); 196 IXP_UDMA_ENABLE(udma, chp->ch_channel, drive); 197 IXP_SET_MODE(udma, chp->ch_channel, drive, drvp->UDMA_mode); 198 } else if (drvp->drive_flags & DRIVE_DMA) { 199 IXP_UDMA_DISABLE(udma, chp->ch_channel, drive); 200 IXP_SET_TIMING(mdma_timing, chp->ch_channel, drive, 201 ixp_mdma_timings[drvp->DMA_mode]); 202 } else 203 IXP_UDMA_DISABLE(udma, chp->ch_channel, drive); 204 205 /* 206 * Set PIO mode and timings 207 * Linux driver avoids PIO mode 1, let's do it too. 208 */ 209 if (drvp->PIO_mode == 1) 210 drvp->PIO_mode = 0; 211 212 IXP_SET_MODE(pio, chp->ch_channel, drive, drvp->PIO_mode); 213 IXP_SET_TIMING(pio_timing, chp->ch_channel, drive, 214 ixp_pio_timings[drvp->PIO_mode]); 215 } 216 pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_UDMA_CTL, udma); 217 pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_MDMA_TIMING, mdma_timing); 218 pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_PIO_CTL, pio); 219 pci_conf_write(sc->sc_pc, sc->sc_tag, IXP_PIO_TIMING, pio_timing); 220 ATADEBUG_PRINT(("ixp_setup_channel: udma = %08x, mdma_timing = %08x, pio_mode = %08x," 221 " pio_timing = %08x\n", udma, mdma_timing, pio, pio_timing), DEBUG_PROBE); 222 } 223