pdcide.c revision 1.28.2.1
1 /* $NetBSD: pdcide.c,v 1.28.2.1 2011/06/06 09:08:25 jruoho Exp $ */ 2 3 /* 4 * Copyright (c) 1999, 2000, 2001 Manuel Bouyer. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: pdcide.c,v 1.28.2.1 2011/06/06 09:08:25 jruoho Exp $"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 33 #include <dev/pci/pcivar.h> 34 #include <dev/pci/pcidevs.h> 35 #include <dev/pci/pciidereg.h> 36 #include <dev/pci/pciidevar.h> 37 #include <dev/pci/pciide_pdc202xx_reg.h> 38 39 static void pdc202xx_chip_map(struct pciide_softc *, 40 const struct pci_attach_args *); 41 static void pdc202xx_setup_channel(struct ata_channel *); 42 static void pdc20268_setup_channel(struct ata_channel *); 43 static int pdc202xx_pci_intr(void *); 44 static int pdc20265_pci_intr(void *); 45 static void pdc20262_dma_start(void *, int, int); 46 static int pdc20262_dma_finish(void *, int, int, int); 47 48 static int pdcide_match(device_t, cfdata_t, void *); 49 static void pdcide_attach(device_t, device_t, void *); 50 51 CFATTACH_DECL_NEW(pdcide, sizeof(struct pciide_softc), 52 pdcide_match, pdcide_attach, NULL, NULL); 53 54 static const struct pciide_product_desc pciide_promise_products[] = { 55 { PCI_PRODUCT_PROMISE_PDC20246, 56 0, 57 "Promise Ultra33/ATA Bus Master IDE Accelerator", 58 pdc202xx_chip_map, 59 }, 60 { PCI_PRODUCT_PROMISE_PDC20262, 61 0, 62 "Promise Ultra66/ATA Bus Master IDE Accelerator", 63 pdc202xx_chip_map, 64 }, 65 { PCI_PRODUCT_PROMISE_PDC20267, 66 0, 67 "Promise Ultra100/ATA Bus Master IDE Accelerator", 68 pdc202xx_chip_map, 69 }, 70 { PCI_PRODUCT_PROMISE_PDC20265, 71 0, 72 "Promise Ultra100/ATA Bus Master IDE Accelerator", 73 pdc202xx_chip_map, 74 }, 75 { PCI_PRODUCT_PROMISE_PDC20268, 76 0, 77 "Promise Ultra100TX2/ATA Bus Master IDE Accelerator", 78 pdc202xx_chip_map, 79 }, 80 { PCI_PRODUCT_PROMISE_PDC20270, 81 0, 82 "Promise Ultra100TX2v2/ATA Bus Master IDE Accelerator", 83 pdc202xx_chip_map, 84 }, 85 { PCI_PRODUCT_PROMISE_PDC20269, 86 0, 87 "Promise Ultra133/ATA Bus Master IDE Accelerator", 88 pdc202xx_chip_map, 89 }, 90 { PCI_PRODUCT_PROMISE_PDC20276, 91 0, 92 "Promise Ultra133TX2/ATA Bus Master IDE Accelerator", 93 pdc202xx_chip_map, 94 }, 95 { PCI_PRODUCT_PROMISE_PDC20275, 96 0, 97 "Promise Ultra133/ATA Bus Master IDE Accelerator (MB)", 98 pdc202xx_chip_map, 99 }, 100 { PCI_PRODUCT_PROMISE_PDC20271, 101 0, 102 "Promise Ultra133TX2v2/ATA Bus Master IDE Accelerator", 103 pdc202xx_chip_map, 104 }, 105 { PCI_PRODUCT_PROMISE_PDC20277, 106 0, 107 "Promise Fasttrak133 Lite Bus Master IDE Accelerator", 108 pdc202xx_chip_map, 109 }, 110 { 0, 111 0, 112 NULL, 113 NULL 114 } 115 }; 116 117 static int 118 pdcide_match(device_t parent, cfdata_t match, void *aux) 119 { 120 struct pci_attach_args *pa = aux; 121 122 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_PROMISE) { 123 if (pciide_lookup_product(pa->pa_id, pciide_promise_products)) 124 return (2); 125 } 126 return (0); 127 } 128 129 static void 130 pdcide_attach(device_t parent, device_t self, void *aux) 131 { 132 struct pci_attach_args *pa = aux; 133 struct pciide_softc *sc = device_private(self); 134 135 sc->sc_wdcdev.sc_atac.atac_dev = self; 136 137 pciide_common_attach(sc, pa, 138 pciide_lookup_product(pa->pa_id, pciide_promise_products)); 139 140 } 141 142 /* Macros to test product */ 143 #define PDC_IS_262(sc) \ 144 ((sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20262 || \ 145 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20267 || \ 146 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20265 || \ 147 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20268 || \ 148 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20270 || \ 149 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20269 || \ 150 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20276 || \ 151 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20275 || \ 152 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20271 || \ 153 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20277) 154 #define PDC_IS_265(sc) \ 155 ((sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20267 || \ 156 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20265 || \ 157 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20268 || \ 158 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20270 || \ 159 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20269 || \ 160 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20276 || \ 161 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20275 || \ 162 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20271 || \ 163 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20277) 164 #define PDC_IS_268(sc) \ 165 ((sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20268 || \ 166 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20270 || \ 167 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20269 || \ 168 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20276 || \ 169 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20275 || \ 170 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20271 || \ 171 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20277) 172 #define PDC_IS_276(sc) \ 173 ((sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20269 || \ 174 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20276 || \ 175 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20275 || \ 176 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20271 || \ 177 (sc)->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20277) 178 179 static void 180 pdc202xx_chip_map(struct pciide_softc *sc, const struct pci_attach_args *pa) 181 { 182 struct pciide_channel *cp; 183 int channel; 184 pcireg_t interface, st, mode; 185 186 if (!PDC_IS_268(sc)) { 187 st = pci_conf_read(sc->sc_pc, sc->sc_tag, PDC2xx_STATE); 188 ATADEBUG_PRINT(("pdc202xx_setup_chip: controller state 0x%x\n", 189 st), DEBUG_PROBE); 190 /* turn off RAID mode */ 191 if (st & PDC2xx_STATE_IDERAID) { 192 ATADEBUG_PRINT(("pdc202xx_setup_chip: turning off RAID mode\n"), DEBUG_PROBE); 193 st &= ~PDC2xx_STATE_IDERAID; 194 pci_conf_write(sc->sc_pc, sc->sc_tag, PDC2xx_STATE, st); 195 } 196 } else 197 st = PDC2xx_STATE_NATIVE | PDC262_STATE_EN(0) | PDC262_STATE_EN(1); 198 199 if (pciide_chipen(sc, pa) == 0) 200 return; 201 202 /* 203 * can't rely on the PCI_CLASS_REG content if the chip was in raid 204 * mode. We have to fake interface 205 */ 206 interface = PCIIDE_INTERFACE_SETTABLE(0) | PCIIDE_INTERFACE_SETTABLE(1); 207 if (st & PDC2xx_STATE_NATIVE) 208 interface |= PCIIDE_INTERFACE_PCI(0) | PCIIDE_INTERFACE_PCI(1); 209 210 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 211 "bus-master DMA support present"); 212 pciide_mapreg_dma(sc, pa); 213 aprint_verbose("\n"); 214 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32; 215 if (sc->sc_dma_ok) { 216 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA; 217 sc->sc_wdcdev.irqack = pciide_irqack; 218 } 219 if (PCI_CLASS(pa->pa_class) == PCI_CLASS_MASS_STORAGE && 220 PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_RAID) 221 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_RAID; 222 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 223 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 224 if (PDC_IS_276(sc)) 225 sc->sc_wdcdev.sc_atac.atac_udma_cap = 6; 226 else if (PDC_IS_265(sc)) 227 sc->sc_wdcdev.sc_atac.atac_udma_cap = 5; 228 else if (PDC_IS_262(sc)) 229 sc->sc_wdcdev.sc_atac.atac_udma_cap = 4; 230 else 231 sc->sc_wdcdev.sc_atac.atac_udma_cap = 2; 232 sc->sc_wdcdev.sc_atac.atac_set_modes = PDC_IS_268(sc) ? 233 pdc20268_setup_channel : pdc202xx_setup_channel; 234 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 235 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 236 237 wdc_allocate_regs(&sc->sc_wdcdev); 238 239 if (sc->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20262 || 240 sc->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20267 || 241 sc->sc_pp->ide_product == PCI_PRODUCT_PROMISE_PDC20265) { 242 sc->sc_wdcdev.dma_start = pdc20262_dma_start; 243 sc->sc_wdcdev.dma_finish = pdc20262_dma_finish; 244 } 245 246 if (!PDC_IS_268(sc)) { 247 /* setup failsafe defaults */ 248 mode = 0; 249 mode = PDC2xx_TIM_SET_PA(mode, pdc2xx_pa[0]); 250 mode = PDC2xx_TIM_SET_PB(mode, pdc2xx_pb[0]); 251 mode = PDC2xx_TIM_SET_MB(mode, pdc2xx_dma_mb[0]); 252 mode = PDC2xx_TIM_SET_MC(mode, pdc2xx_dma_mc[0]); 253 for (channel = 0; 254 channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 255 channel++) { 256 ATADEBUG_PRINT(("pdc202xx_setup_chip: channel %d " 257 "drive 0 initial timings 0x%x, now 0x%x\n", 258 channel, pci_conf_read(sc->sc_pc, sc->sc_tag, 259 PDC2xx_TIM(channel, 0)), mode | PDC2xx_TIM_IORDYp), 260 DEBUG_PROBE); 261 pci_conf_write(sc->sc_pc, sc->sc_tag, 262 PDC2xx_TIM(channel, 0), mode | PDC2xx_TIM_IORDYp); 263 ATADEBUG_PRINT(("pdc202xx_setup_chip: channel %d " 264 "drive 1 initial timings 0x%x, now 0x%x\n", 265 channel, pci_conf_read(sc->sc_pc, sc->sc_tag, 266 PDC2xx_TIM(channel, 1)), mode), DEBUG_PROBE); 267 pci_conf_write(sc->sc_pc, sc->sc_tag, 268 PDC2xx_TIM(channel, 1), mode); 269 } 270 271 mode = PDC2xx_SCR_DMA; 272 if (PDC_IS_265(sc)) { 273 mode = PDC2xx_SCR_SET_GEN(mode, PDC265_SCR_GEN_LAT); 274 } else if (PDC_IS_262(sc)) { 275 mode = PDC2xx_SCR_SET_GEN(mode, PDC262_SCR_GEN_LAT); 276 } else { 277 /* the BIOS set it up this way */ 278 mode = PDC2xx_SCR_SET_GEN(mode, 0x1); 279 } 280 mode = PDC2xx_SCR_SET_I2C(mode, 0x3); /* ditto */ 281 mode = PDC2xx_SCR_SET_POLL(mode, 0x1); /* ditto */ 282 ATADEBUG_PRINT(("pdc202xx_setup_chip: initial SCR 0x%x, " 283 "now 0x%x\n", 284 bus_space_read_4(sc->sc_dma_iot, sc->sc_dma_ioh, 285 PDC2xx_SCR), 286 mode), DEBUG_PROBE); 287 bus_space_write_4(sc->sc_dma_iot, sc->sc_dma_ioh, 288 PDC2xx_SCR, mode); 289 290 /* controller initial state register is OK even without BIOS */ 291 /* Set DMA mode to IDE DMA compatibility */ 292 mode = 293 bus_space_read_1(sc->sc_dma_iot, sc->sc_dma_ioh, PDC2xx_PM); 294 ATADEBUG_PRINT(("pdc202xx_setup_chip: primary mode 0x%x", mode), 295 DEBUG_PROBE); 296 bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh, PDC2xx_PM, 297 mode | 0x1); 298 mode = 299 bus_space_read_1(sc->sc_dma_iot, sc->sc_dma_ioh, PDC2xx_SM); 300 ATADEBUG_PRINT((", secondary mode 0x%x\n", mode ), DEBUG_PROBE); 301 bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh, PDC2xx_SM, 302 mode | 0x1); 303 } 304 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 305 channel++) { 306 cp = &sc->pciide_channels[channel]; 307 if (pciide_chansetup(sc, channel, interface) == 0) 308 continue; 309 if ((st & (PDC_IS_262(sc) ? 310 PDC262_STATE_EN(channel):PDC246_STATE_EN(channel))) == 0) { 311 aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, 312 "%s channel ignored (disabled)\n", cp->name); 313 cp->ata_channel.ch_flags |= ATACH_DISABLED; 314 continue; 315 } 316 pciide_mapchan(pa, cp, interface, 317 PDC_IS_265(sc) ? pdc20265_pci_intr : pdc202xx_pci_intr); 318 /* clear interrupt, in case there is one pending */ 319 bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0, 320 IDEDMA_CTL_INTR); 321 } 322 return; 323 } 324 325 static void 326 pdc202xx_setup_channel(struct ata_channel *chp) 327 { 328 struct ata_drive_datas *drvp; 329 int drive, s; 330 pcireg_t mode, st; 331 u_int32_t idedma_ctl, scr, atapi; 332 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 333 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 334 int channel = chp->ch_channel; 335 336 /* setup DMA if needed */ 337 pciide_channel_dma_setup(cp); 338 339 idedma_ctl = 0; 340 ATADEBUG_PRINT(("pdc202xx_setup_channel %s: scr 0x%x\n", 341 device_xname(sc->sc_wdcdev.sc_atac.atac_dev), 342 bus_space_read_1(sc->sc_dma_iot, sc->sc_dma_ioh, PDC262_U66)), 343 DEBUG_PROBE); 344 345 /* Per channel settings */ 346 if (PDC_IS_262(sc)) { 347 scr = bus_space_read_1(sc->sc_dma_iot, sc->sc_dma_ioh, 348 PDC262_U66); 349 st = pci_conf_read(sc->sc_pc, sc->sc_tag, PDC2xx_STATE); 350 /* Trim UDMA mode */ 351 if ((st & PDC262_STATE_80P(channel)) != 0 || 352 (chp->ch_drive[0].drive_flags & DRIVE_UDMA && 353 chp->ch_drive[0].UDMA_mode <= 2) || 354 (chp->ch_drive[1].drive_flags & DRIVE_UDMA && 355 chp->ch_drive[1].UDMA_mode <= 2)) { 356 if (chp->ch_drive[0].UDMA_mode > 2) 357 chp->ch_drive[0].UDMA_mode = 2; 358 if (chp->ch_drive[1].UDMA_mode > 2) 359 chp->ch_drive[1].UDMA_mode = 2; 360 } 361 /* Set U66 if needed */ 362 if ((chp->ch_drive[0].drive_flags & DRIVE_UDMA && 363 chp->ch_drive[0].UDMA_mode > 2) || 364 (chp->ch_drive[1].drive_flags & DRIVE_UDMA && 365 chp->ch_drive[1].UDMA_mode > 2)) 366 scr |= PDC262_U66_EN(channel); 367 else 368 scr &= ~PDC262_U66_EN(channel); 369 bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh, 370 PDC262_U66, scr); 371 ATADEBUG_PRINT(("pdc202xx_setup_channel %s:%d: ATAPI 0x%x\n", 372 device_xname(sc->sc_wdcdev.sc_atac.atac_dev), channel, 373 bus_space_read_4(sc->sc_dma_iot, sc->sc_dma_ioh, 374 PDC262_ATAPI(channel))), DEBUG_PROBE); 375 if (chp->ch_drive[0].drive_flags & DRIVE_ATAPI || 376 chp->ch_drive[1].drive_flags & DRIVE_ATAPI) { 377 if (((chp->ch_drive[0].drive_flags & DRIVE_UDMA) && 378 !(chp->ch_drive[1].drive_flags & DRIVE_UDMA) && 379 (chp->ch_drive[1].drive_flags & DRIVE_DMA)) || 380 ((chp->ch_drive[1].drive_flags & DRIVE_UDMA) && 381 !(chp->ch_drive[0].drive_flags & DRIVE_UDMA) && 382 (chp->ch_drive[0].drive_flags & DRIVE_DMA))) 383 atapi = 0; 384 else 385 atapi = PDC262_ATAPI_UDMA; 386 bus_space_write_4(sc->sc_dma_iot, sc->sc_dma_ioh, 387 PDC262_ATAPI(channel), atapi); 388 } 389 } 390 for (drive = 0; drive < 2; drive++) { 391 drvp = &chp->ch_drive[drive]; 392 /* If no drive, skip */ 393 if ((drvp->drive_flags & DRIVE) == 0) 394 continue; 395 mode = 0; 396 if (drvp->drive_flags & DRIVE_UDMA) { 397 /* use Ultra/DMA */ 398 s = splbio(); 399 drvp->drive_flags &= ~DRIVE_DMA; 400 splx(s); 401 mode = PDC2xx_TIM_SET_MB(mode, 402 pdc2xx_udma_mb[drvp->UDMA_mode]); 403 mode = PDC2xx_TIM_SET_MC(mode, 404 pdc2xx_udma_mc[drvp->UDMA_mode]); 405 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 406 } else if (drvp->drive_flags & DRIVE_DMA) { 407 mode = PDC2xx_TIM_SET_MB(mode, 408 pdc2xx_dma_mb[drvp->DMA_mode]); 409 mode = PDC2xx_TIM_SET_MC(mode, 410 pdc2xx_dma_mc[drvp->DMA_mode]); 411 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 412 } else { 413 mode = PDC2xx_TIM_SET_MB(mode, 414 pdc2xx_dma_mb[0]); 415 mode = PDC2xx_TIM_SET_MC(mode, 416 pdc2xx_dma_mc[0]); 417 } 418 mode = PDC2xx_TIM_SET_PA(mode, pdc2xx_pa[drvp->PIO_mode]); 419 mode = PDC2xx_TIM_SET_PB(mode, pdc2xx_pb[drvp->PIO_mode]); 420 if (drvp->drive_flags & DRIVE_ATA) 421 mode |= PDC2xx_TIM_PRE; 422 mode |= PDC2xx_TIM_SYNC | PDC2xx_TIM_ERRDY; 423 if (drvp->PIO_mode >= 3) { 424 mode |= PDC2xx_TIM_IORDY; 425 if (drive == 0) 426 mode |= PDC2xx_TIM_IORDYp; 427 } 428 ATADEBUG_PRINT(("pdc202xx_setup_channel: %s:%d:%d " 429 "timings 0x%x\n", 430 device_xname(sc->sc_wdcdev.sc_atac.atac_dev), 431 chp->ch_channel, drive, mode), DEBUG_PROBE); 432 pci_conf_write(sc->sc_pc, sc->sc_tag, 433 PDC2xx_TIM(chp->ch_channel, drive), mode); 434 } 435 if (idedma_ctl != 0) { 436 /* Add software bits in status register */ 437 bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 438 0, idedma_ctl); 439 } 440 } 441 442 static void 443 pdc20268_setup_channel(struct ata_channel *chp) 444 { 445 struct ata_drive_datas *drvp; 446 int drive, s; 447 u_int32_t idedma_ctl; 448 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 449 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 450 int u100; 451 452 /* setup DMA if needed */ 453 pciide_channel_dma_setup(cp); 454 455 idedma_ctl = 0; 456 457 /* I don't know what this is for, FreeBSD does it ... */ 458 bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh, 459 IDEDMA_CMD + 0x1 + IDEDMA_SCH_OFFSET * chp->ch_channel, 0x0b); 460 461 /* 462 * cable type detect, from FreeBSD 463 */ 464 u100 = (bus_space_read_1(sc->sc_dma_iot, sc->sc_dma_ioh, 465 IDEDMA_CMD + 0x3 + IDEDMA_SCH_OFFSET * chp->ch_channel) & 0x04) ? 466 0 : 1; 467 468 for (drive = 0; drive < 2; drive++) { 469 drvp = &chp->ch_drive[drive]; 470 /* If no drive, skip */ 471 if ((drvp->drive_flags & DRIVE) == 0) 472 continue; 473 if (drvp->drive_flags & DRIVE_UDMA) { 474 /* use Ultra/DMA */ 475 s = splbio(); 476 drvp->drive_flags &= ~DRIVE_DMA; 477 splx(s); 478 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 479 if (drvp->UDMA_mode > 2 && u100 == 0) 480 drvp->UDMA_mode = 2; 481 } else if (drvp->drive_flags & DRIVE_DMA) { 482 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 483 } 484 } 485 /* nothing to do to setup modes, the controller snoop SET_FEATURE cmd */ 486 if (idedma_ctl != 0) { 487 /* Add software bits in status register */ 488 bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 489 0, idedma_ctl); 490 } 491 } 492 493 static int 494 pdc202xx_pci_intr(void *arg) 495 { 496 struct pciide_softc *sc = arg; 497 struct pciide_channel *cp; 498 struct ata_channel *wdc_cp; 499 int i, rv, crv; 500 u_int32_t scr; 501 502 rv = 0; 503 scr = bus_space_read_4(sc->sc_dma_iot, sc->sc_dma_ioh, PDC2xx_SCR); 504 for (i = 0; i < sc->sc_wdcdev.sc_atac.atac_nchannels; i++) { 505 cp = &sc->pciide_channels[i]; 506 wdc_cp = &cp->ata_channel; 507 /* If a compat channel skip. */ 508 if (cp->compat) 509 continue; 510 if (scr & PDC2xx_SCR_INT(i)) { 511 crv = wdcintr(wdc_cp); 512 if (crv == 0) 513 aprint_error("%s:%d: bogus intr (reg 0x%x)\n", 514 device_xname( 515 sc->sc_wdcdev.sc_atac.atac_dev), i, scr); 516 else 517 rv = 1; 518 } 519 } 520 return rv; 521 } 522 523 static int 524 pdc20265_pci_intr(void *arg) 525 { 526 struct pciide_softc *sc = arg; 527 struct pciide_channel *cp; 528 struct ata_channel *wdc_cp; 529 int i, rv, crv; 530 u_int32_t dmastat; 531 532 rv = 0; 533 for (i = 0; i < sc->sc_wdcdev.sc_atac.atac_nchannels; i++) { 534 cp = &sc->pciide_channels[i]; 535 wdc_cp = &cp->ata_channel; 536 /* If a compat channel skip. */ 537 if (cp->compat) 538 continue; 539 #if 0 540 bus_space_write_1(sc->sc_dma_iot, sc->sc_dma_ioh, IDEDMA_CMD + 0x1 + IDEDMA_SCH_OFFSET * i, 0x0b); 541 if ((bus_space_read_1(sc->sc_dma_iot, sc->sc_dma_ioh, IDEDMA_CMD + 0x3 + IDEDMA_SCH_OFFSET * i) & 0x20) == 0) 542 continue; 543 #endif 544 /* 545 * The Ultra/100 seems to assert PDC2xx_SCR_INT * spuriously, 546 * however it asserts INT in IDEDMA_CTL even for non-DMA ops. 547 * So use it instead (requires 2 reg reads instead of 1, 548 * but we can't do it another way). 549 */ 550 dmastat = bus_space_read_1(sc->sc_dma_iot, 551 cp->dma_iohs[IDEDMA_CTL], 0); 552 if((dmastat & IDEDMA_CTL_INTR) == 0) 553 continue; 554 crv = wdcintr(wdc_cp); 555 if (crv == 0) 556 aprint_error("%s:%d: bogus intr\n", 557 device_xname(sc->sc_wdcdev.sc_atac.atac_dev), i); 558 else 559 rv = 1; 560 } 561 return rv; 562 } 563 564 static void 565 pdc20262_dma_start(void *v, int channel, int drive) 566 { 567 struct pciide_softc *sc = v; 568 struct pciide_dma_maps *dma_maps = 569 &sc->pciide_channels[channel].dma_maps[drive]; 570 int atapi; 571 572 if (dma_maps->dma_flags & WDC_DMA_LBA48) { 573 atapi = (dma_maps->dma_flags & WDC_DMA_READ) ? 574 PDC262_ATAPI_LBA48_READ : PDC262_ATAPI_LBA48_WRITE; 575 atapi |= dma_maps->dmamap_xfer->dm_mapsize >> 1; 576 bus_space_write_4(sc->sc_dma_iot, sc->sc_dma_ioh, 577 PDC262_ATAPI(channel), atapi); 578 } 579 580 pciide_dma_start(v, channel, drive); 581 } 582 583 static int 584 pdc20262_dma_finish(void *v, int channel, int drive, int force) 585 { 586 struct pciide_softc *sc = v; 587 struct pciide_dma_maps *dma_maps = 588 &sc->pciide_channels[channel].dma_maps[drive]; 589 struct ata_channel *chp; 590 int atapi, error; 591 592 error = pciide_dma_finish(v, channel, drive, force); 593 594 if (dma_maps->dma_flags & WDC_DMA_LBA48) { 595 chp = sc->wdc_chanarray[channel]; 596 atapi = 0; 597 if (chp->ch_drive[0].drive_flags & DRIVE_ATAPI || 598 chp->ch_drive[1].drive_flags & DRIVE_ATAPI) { 599 if ((!(chp->ch_drive[0].drive_flags & DRIVE_UDMA) || 600 (chp->ch_drive[1].drive_flags & DRIVE_UDMA) || 601 !(chp->ch_drive[1].drive_flags & DRIVE_DMA)) && 602 (!(chp->ch_drive[1].drive_flags & DRIVE_UDMA) || 603 (chp->ch_drive[0].drive_flags & DRIVE_UDMA) || 604 !(chp->ch_drive[0].drive_flags & DRIVE_DMA))) 605 atapi = PDC262_ATAPI_UDMA; 606 } 607 bus_space_write_4(sc->sc_dma_iot, sc->sc_dma_ioh, 608 PDC262_ATAPI(channel), atapi); 609 } 610 611 return error; 612 } 613
Indexes created Thu Oct 02 14:10:14 GMT 2025