1 /* $NetBSD: slide.c,v 1.19 2008/03/18 20:46:37 cube 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 1.19 2008/03/18 20:46:37 cube 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(device_t, cfdata_t, void *); 55 static void slide_attach(device_t, device_t, void *); 56 57 CFATTACH_DECL_NEW(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(device_t parent, cfdata_t 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(device_t parent, device_t self, void *aux) 104 { 105 struct pci_attach_args *pa = aux; 106 struct pciide_softc *sc = device_private(self); 107 const struct pciide_product_desc *pp = NULL; 108 109 sc->sc_wdcdev.sc_atac.atac_dev = self; 110 111 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) 112 pp = pciide_lookup_product(pa->pa_id, pciide_symphony_products); 113 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) 114 pp = pciide_lookup_product(pa->pa_id, pciide_winbond_products); 115 if (pp == NULL) 116 panic("slide_attach"); 117 pciide_common_attach(sc, pa, pp); 118 } 119 120 static int 121 sl82c105_bugchk(struct pci_attach_args *pa) 122 { 123 124 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_WINBOND || 125 PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_WINBOND_W83C553F_0) 126 return (0); 127 128 if (PCI_REVISION(pa->pa_class) <= 0x05) 129 return (1); 130 131 return (0); 132 } 133 134 static void 135 sl82c105_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa) 136 { 137 struct pciide_channel *cp; 138 bus_size_t cmdsize, ctlsize; 139 pcireg_t interface, idecr; 140 int channel; 141 142 if (pciide_chipen(sc, pa) == 0) 143 return; 144 145 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 146 "bus-master DMA support present"); 147 148 /* 149 * Check to see if we're part of the Winbond 83c553 Southbridge. 150 * If so, we need to disable DMA on rev. <= 5 of that chip. 151 */ 152 if (pci_find_device(pa, sl82c105_bugchk)) { 153 aprint_verbose(" but disabled due to 83c553 rev. <= 0x05"); 154 sc->sc_dma_ok = 0; 155 } else 156 pciide_mapreg_dma(sc, pa); 157 aprint_verbose("\n"); 158 159 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA32 | ATAC_CAP_DATA16; 160 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 161 if (sc->sc_dma_ok) { 162 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; 163 sc->sc_wdcdev.irqack = pciide_irqack; 164 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 165 } 166 sc->sc_wdcdev.sc_atac.atac_set_modes = sl82c105_setup_channel; 167 168 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 169 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 170 171 idecr = pci_conf_read(sc->sc_pc, sc->sc_tag, SYMPH_IDECSR); 172 173 interface = PCI_INTERFACE(pa->pa_class); 174 175 wdc_allocate_regs(&sc->sc_wdcdev); 176 177 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 178 channel++) { 179 cp = &sc->pciide_channels[channel]; 180 if (pciide_chansetup(sc, channel, interface) == 0) 181 continue; 182 if ((channel == 0 && (idecr & IDECR_P0EN) == 0) || 183 (channel == 1 && (idecr & IDECR_P1EN) == 0)) { 184 aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, 185 "%s channel ignored (disabled)\n", cp->name); 186 cp->ata_channel.ch_flags |= ATACH_DISABLED; 187 continue; 188 } 189 pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize, 190 pciide_pci_intr); 191 } 192 } 193 194 static void 195 sl82c105_setup_channel(struct ata_channel *chp) 196 { 197 struct ata_drive_datas *drvp; 198 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 199 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 200 int pxdx_reg, drive, s; 201 pcireg_t pxdx; 202 203 /* Set up DMA if needed. */ 204 pciide_channel_dma_setup(cp); 205 206 for (drive = 0; drive < 2; drive++) { 207 pxdx_reg = ((chp->ch_channel == 0) ? SYMPH_P0D0CR 208 : SYMPH_P1D0CR) + 209 (drive * 4); 210 211 pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, pxdx_reg); 212 213 pxdx &= ~(PxDx_CMD_ON_MASK|PxDx_CMD_OFF_MASK); 214 pxdx &= ~(PxDx_PWEN|PxDx_RDYEN|PxDx_RAEN); 215 216 drvp = &chp->ch_drive[drive]; 217 /* If no drive, skip. */ 218 if ((drvp->drive_flags & DRIVE) == 0) { 219 pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); 220 continue; 221 } 222 223 if (drvp->drive_flags & DRIVE_DMA) { 224 /* 225 * Timings will be used for both PIO and DMA, 226 * so adjust DMA mode if needed. 227 */ 228 if (drvp->PIO_mode >= 3) { 229 if ((drvp->DMA_mode + 2) > drvp->PIO_mode) 230 drvp->DMA_mode = drvp->PIO_mode - 2; 231 if (drvp->DMA_mode < 1) { 232 /* 233 * Can't mix both PIO and DMA. 234 * Disable DMA. 235 */ 236 s = splbio(); 237 drvp->drive_flags &= ~DRIVE_DMA; 238 splx(s); 239 } 240 } else { 241 /* 242 * Can't mix both PIO and DMA. Disable 243 * DMA. 244 */ 245 s = splbio(); 246 drvp->drive_flags &= ~DRIVE_DMA; 247 splx(s); 248 } 249 } 250 251 if (drvp->drive_flags & DRIVE_DMA) { 252 /* Use multi-word DMA. */ 253 pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_on << 254 PxDx_CMD_ON_SHIFT; 255 pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_off; 256 } else { 257 pxdx |= symph_pio_times[drvp->PIO_mode].cmd_on << 258 PxDx_CMD_ON_SHIFT; 259 pxdx |= symph_pio_times[drvp->PIO_mode].cmd_off; 260 } 261 262 /* XXX PxDx_PWEN? PxDx_RDYEN? PxDx_RAEN? */ 263 264 /* ...and set the mode for this drive. */ 265 pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); 266 } 267 } 268