slide.c revision 1.13
1 /* $NetBSD: slide.c,v 1.13 2006/09/03 05:24:47 christos 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 1.13 2006/09/03 05:24:47 christos 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, void *aux) 88 { 89 struct pci_attach_args *pa = aux; 90 91 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) { 92 if (pciide_lookup_product(pa->pa_id, pciide_symphony_products)) 93 return (2); 94 } 95 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) { 96 if (pciide_lookup_product(pa->pa_id, pciide_winbond_products)) 97 return (2); 98 } 99 return (0); 100 } 101 102 static void 103 slide_attach(struct device *parent, struct device *self, void *aux) 104 { 105 struct pci_attach_args *pa = aux; 106 struct pciide_softc *sc = (struct pciide_softc *)self; 107 const struct pciide_product_desc *pp = NULL; 108 109 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) 110 pp = pciide_lookup_product(pa->pa_id, pciide_symphony_products); 111 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) 112 pp = pciide_lookup_product(pa->pa_id, pciide_winbond_products); 113 if (pp == NULL) 114 panic("slide_attach"); 115 pciide_common_attach(sc, pa, pp); 116 } 117 118 static int 119 sl82c105_bugchk(struct pci_attach_args *pa) 120 { 121 122 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_WINBOND || 123 PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_WINBOND_W83C553F_0) 124 return (0); 125 126 if (PCI_REVISION(pa->pa_class) <= 0x05) 127 return (1); 128 129 return (0); 130 } 131 132 static void 133 sl82c105_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa) 134 { 135 struct pciide_channel *cp; 136 bus_size_t cmdsize, ctlsize; 137 pcireg_t interface, idecr; 138 int channel; 139 140 if (pciide_chipen(sc, pa) == 0) 141 return; 142 143 aprint_normal("%s: bus-master DMA support present", 144 sc->sc_wdcdev.sc_atac.atac_dev.dv_xname); 145 146 /* 147 * Check to see if we're part of the Winbond 83c553 Southbridge. 148 * If so, we need to disable DMA on rev. <= 5 of that chip. 149 */ 150 if (pci_find_device(pa, sl82c105_bugchk)) { 151 aprint_normal(" but disabled due to 83c553 rev. <= 0x05"); 152 sc->sc_dma_ok = 0; 153 } else 154 pciide_mapreg_dma(sc, pa); 155 aprint_normal("\n"); 156 157 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA32 | ATAC_CAP_DATA16; 158 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 159 if (sc->sc_dma_ok) { 160 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; 161 sc->sc_wdcdev.irqack = pciide_irqack; 162 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 163 } 164 sc->sc_wdcdev.sc_atac.atac_set_modes = sl82c105_setup_channel; 165 166 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 167 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 168 169 idecr = pci_conf_read(sc->sc_pc, sc->sc_tag, SYMPH_IDECSR); 170 171 interface = PCI_INTERFACE(pa->pa_class); 172 173 wdc_allocate_regs(&sc->sc_wdcdev); 174 175 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 176 channel++) { 177 cp = &sc->pciide_channels[channel]; 178 if (pciide_chansetup(sc, channel, interface) == 0) 179 continue; 180 if ((channel == 0 && (idecr & IDECR_P0EN) == 0) || 181 (channel == 1 && (idecr & IDECR_P1EN) == 0)) { 182 aprint_normal("%s: %s channel ignored (disabled)\n", 183 sc->sc_wdcdev.sc_atac.atac_dev.dv_xname, cp->name); 184 cp->ata_channel.ch_flags |= ATACH_DISABLED; 185 continue; 186 } 187 pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize, 188 pciide_pci_intr); 189 } 190 } 191 192 static void 193 sl82c105_setup_channel(struct ata_channel *chp) 194 { 195 struct ata_drive_datas *drvp; 196 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 197 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 198 int pxdx_reg, drive, s; 199 pcireg_t pxdx; 200 201 /* Set up DMA if needed. */ 202 pciide_channel_dma_setup(cp); 203 204 for (drive = 0; drive < 2; drive++) { 205 pxdx_reg = ((chp->ch_channel == 0) ? SYMPH_P0D0CR 206 : SYMPH_P1D0CR) + 207 (drive * 4); 208 209 pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, pxdx_reg); 210 211 pxdx &= ~(PxDx_CMD_ON_MASK|PxDx_CMD_OFF_MASK); 212 pxdx &= ~(PxDx_PWEN|PxDx_RDYEN|PxDx_RAEN); 213 214 drvp = &chp->ch_drive[drive]; 215 /* If no drive, skip. */ 216 if ((drvp->drive_flags & DRIVE) == 0) { 217 pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); 218 continue; 219 } 220 221 if (drvp->drive_flags & DRIVE_DMA) { 222 /* 223 * Timings will be used for both PIO and DMA, 224 * so adjust DMA mode if needed. 225 */ 226 if (drvp->PIO_mode >= 3) { 227 if ((drvp->DMA_mode + 2) > drvp->PIO_mode) 228 drvp->DMA_mode = drvp->PIO_mode - 2; 229 if (drvp->DMA_mode < 1) { 230 /* 231 * Can't mix both PIO and DMA. 232 * Disable DMA. 233 */ 234 s = splbio(); 235 drvp->drive_flags &= ~DRIVE_DMA; 236 splx(s); 237 } 238 } else { 239 /* 240 * Can't mix both PIO and DMA. Disable 241 * DMA. 242 */ 243 s = splbio(); 244 drvp->drive_flags &= ~DRIVE_DMA; 245 splx(s); 246 } 247 } 248 249 if (drvp->drive_flags & DRIVE_DMA) { 250 /* Use multi-word DMA. */ 251 pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_on << 252 PxDx_CMD_ON_SHIFT; 253 pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_off; 254 } else { 255 pxdx |= symph_pio_times[drvp->PIO_mode].cmd_on << 256 PxDx_CMD_ON_SHIFT; 257 pxdx |= symph_pio_times[drvp->PIO_mode].cmd_off; 258 } 259 260 /* XXX PxDx_PWEN? PxDx_RDYEN? PxDx_RAEN? */ 261 262 /* ...and set the mode for this drive. */ 263 pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); 264 } 265 } 266
Indexes created Thu Oct 02 01:09:59 GMT 2025