1 /* $NetBSD: slide.c,v 1.18 2007/04/26 19:47:04 garbled Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: slide.c,v 1.18 2007/04/26 19:47:04 garbled Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 45 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcidevs.h> 47 #include <dev/pci/pciidereg.h> 48 #include <dev/pci/pciidevar.h> 49 #include <dev/pci/pciide_sl82c105_reg.h> 50 51 static void sl82c105_chip_map(struct pciide_softc*, struct pci_attach_args*); 52 static void sl82c105_setup_channel(struct ata_channel*); 53 54 static int slide_match(struct device *, struct cfdata *, void *); 55 static void slide_attach(struct device *, struct device *, void *); 56 57 CFATTACH_DECL(slide, sizeof(struct pciide_softc), 58 slide_match, slide_attach, NULL, NULL); 59 60 static const struct pciide_product_desc pciide_symphony_products[] = { 61 { PCI_PRODUCT_SYMPHONY_82C105, 62 0, 63 "Symphony Labs 82C105 IDE controller", 64 sl82c105_chip_map, 65 }, 66 { 0, 67 0, 68 NULL, 69 NULL, 70 } 71 }; 72 73 static const struct pciide_product_desc pciide_winbond_products[] = { 74 { PCI_PRODUCT_WINBOND_W83C553F_1, 75 0, 76 "Winbond W83C553F IDE controller", 77 sl82c105_chip_map, 78 }, 79 { 0, 80 0, 81 NULL, 82 NULL, 83 } 84 }; 85 86 static int 87 slide_match(struct device *parent, struct cfdata *match, 88 void *aux) 89 { 90 struct pci_attach_args *pa = aux; 91 92 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) { 93 if (pciide_lookup_product(pa->pa_id, pciide_symphony_products)) 94 return (2); 95 } 96 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) { 97 if (pciide_lookup_product(pa->pa_id, pciide_winbond_products)) 98 return (2); 99 } 100 return (0); 101 } 102 103 static void 104 slide_attach(struct device *parent, struct device *self, void *aux) 105 { 106 struct pci_attach_args *pa = aux; 107 struct pciide_softc *sc = (struct pciide_softc *)self; 108 const struct pciide_product_desc *pp = NULL; 109 110 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) 111 pp = pciide_lookup_product(pa->pa_id, pciide_symphony_products); 112 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) 113 pp = pciide_lookup_product(pa->pa_id, pciide_winbond_products); 114 if (pp == NULL) 115 panic("slide_attach"); 116 pciide_common_attach(sc, pa, pp); 117 } 118 119 static int 120 sl82c105_bugchk(struct pci_attach_args *pa) 121 { 122 123 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_WINBOND || 124 PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_WINBOND_W83C553F_0) 125 return (0); 126 127 if (PCI_REVISION(pa->pa_class) <= 0x05) 128 return (1); 129 130 return (0); 131 } 132 133 static void 134 sl82c105_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa) 135 { 136 struct pciide_channel *cp; 137 bus_size_t cmdsize, ctlsize; 138 pcireg_t interface, idecr; 139 int channel; 140 141 if (pciide_chipen(sc, pa) == 0) 142 return; 143 144 aprint_verbose("%s: bus-master DMA support present", 145 sc->sc_wdcdev.sc_atac.atac_dev.dv_xname); 146 147 /* 148 * Check to see if we're part of the Winbond 83c553 Southbridge. 149 * If so, we need to disable DMA on rev. <= 5 of that chip. 150 */ 151 if (pci_find_device(pa, sl82c105_bugchk)) { 152 aprint_verbose(" but disabled due to 83c553 rev. <= 0x05"); 153 sc->sc_dma_ok = 0; 154 } else 155 pciide_mapreg_dma(sc, pa); 156 aprint_verbose("\n"); 157 158 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA32 | ATAC_CAP_DATA16; 159 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 160 if (sc->sc_dma_ok) { 161 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; 162 sc->sc_wdcdev.irqack = pciide_irqack; 163 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 164 } 165 sc->sc_wdcdev.sc_atac.atac_set_modes = sl82c105_setup_channel; 166 167 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 168 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 169 170 idecr = pci_conf_read(sc->sc_pc, sc->sc_tag, SYMPH_IDECSR); 171 172 interface = PCI_INTERFACE(pa->pa_class); 173 174 wdc_allocate_regs(&sc->sc_wdcdev); 175 176 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 177 channel++) { 178 cp = &sc->pciide_channels[channel]; 179 if (pciide_chansetup(sc, channel, interface) == 0) 180 continue; 181 if ((channel == 0 && (idecr & IDECR_P0EN) == 0) || 182 (channel == 1 && (idecr & IDECR_P1EN) == 0)) { 183 aprint_normal("%s: %s channel ignored (disabled)\n", 184 sc->sc_wdcdev.sc_atac.atac_dev.dv_xname, cp->name); 185 cp->ata_channel.ch_flags |= ATACH_DISABLED; 186 continue; 187 } 188 pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize, 189 pciide_pci_intr); 190 } 191 } 192 193 static void 194 sl82c105_setup_channel(struct ata_channel *chp) 195 { 196 struct ata_drive_datas *drvp; 197 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 198 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 199 int pxdx_reg, drive, s; 200 pcireg_t pxdx; 201 202 /* Set up DMA if needed. */ 203 pciide_channel_dma_setup(cp); 204 205 for (drive = 0; drive < 2; drive++) { 206 pxdx_reg = ((chp->ch_channel == 0) ? SYMPH_P0D0CR 207 : SYMPH_P1D0CR) + 208 (drive * 4); 209 210 pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, pxdx_reg); 211 212 pxdx &= ~(PxDx_CMD_ON_MASK|PxDx_CMD_OFF_MASK); 213 pxdx &= ~(PxDx_PWEN|PxDx_RDYEN|PxDx_RAEN); 214 215 drvp = &chp->ch_drive[drive]; 216 /* If no drive, skip. */ 217 if ((drvp->drive_flags & DRIVE) == 0) { 218 pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); 219 continue; 220 } 221 222 if (drvp->drive_flags & DRIVE_DMA) { 223 /* 224 * Timings will be used for both PIO and DMA, 225 * so adjust DMA mode if needed. 226 */ 227 if (drvp->PIO_mode >= 3) { 228 if ((drvp->DMA_mode + 2) > drvp->PIO_mode) 229 drvp->DMA_mode = drvp->PIO_mode - 2; 230 if (drvp->DMA_mode < 1) { 231 /* 232 * Can't mix both PIO and DMA. 233 * Disable DMA. 234 */ 235 s = splbio(); 236 drvp->drive_flags &= ~DRIVE_DMA; 237 splx(s); 238 } 239 } else { 240 /* 241 * Can't mix both PIO and DMA. Disable 242 * DMA. 243 */ 244 s = splbio(); 245 drvp->drive_flags &= ~DRIVE_DMA; 246 splx(s); 247 } 248 } 249 250 if (drvp->drive_flags & DRIVE_DMA) { 251 /* Use multi-word DMA. */ 252 pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_on << 253 PxDx_CMD_ON_SHIFT; 254 pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_off; 255 } else { 256 pxdx |= symph_pio_times[drvp->PIO_mode].cmd_on << 257 PxDx_CMD_ON_SHIFT; 258 pxdx |= symph_pio_times[drvp->PIO_mode].cmd_off; 259 } 260 261 /* XXX PxDx_PWEN? PxDx_RDYEN? PxDx_RAEN? */ 262 263 /* ...and set the mode for this drive. */ 264 pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); 265 } 266 } 267