cmdide.c revision 1.37
1 /* $NetBSD: cmdide.c,v 1.37 2012/07/31 15:50:36 bouyer 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: cmdide.c,v 1.37 2012/07/31 15:50:36 bouyer Exp $"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/malloc.h> 33 34 #include <dev/pci/pcivar.h> 35 #include <dev/pci/pcidevs.h> 36 #include <dev/pci/pciidereg.h> 37 #include <dev/pci/pciidevar.h> 38 #include <dev/pci/pciide_cmd_reg.h> 39 40 41 static int cmdide_match(device_t, cfdata_t, void *); 42 static void cmdide_attach(device_t, device_t, void *); 43 44 CFATTACH_DECL_NEW(cmdide, sizeof(struct pciide_softc), 45 cmdide_match, cmdide_attach, pciide_detach, NULL); 46 47 static void cmd_chip_map(struct pciide_softc*, const struct pci_attach_args*); 48 static void cmd0643_9_chip_map(struct pciide_softc*, 49 const struct pci_attach_args*); 50 static void cmd0643_9_setup_channel(struct ata_channel*); 51 static void cmd_channel_map(const struct pci_attach_args *, 52 struct pciide_softc *, int); 53 static int cmd_pci_intr(void *); 54 static void cmd646_9_irqack(struct ata_channel *); 55 static void cmd680_chip_map(struct pciide_softc*, 56 const struct pci_attach_args*); 57 static void cmd680_setup_channel(struct ata_channel*); 58 static void cmd680_channel_map(const struct pci_attach_args *, 59 struct pciide_softc *, int); 60 61 static const struct pciide_product_desc pciide_cmd_products[] = { 62 { PCI_PRODUCT_CMDTECH_640, 63 0, 64 "CMD Technology PCI0640", 65 cmd_chip_map 66 }, 67 { PCI_PRODUCT_CMDTECH_643, 68 0, 69 "CMD Technology PCI0643", 70 cmd0643_9_chip_map, 71 }, 72 { PCI_PRODUCT_CMDTECH_646, 73 0, 74 "CMD Technology PCI0646", 75 cmd0643_9_chip_map, 76 }, 77 { PCI_PRODUCT_CMDTECH_648, 78 0, 79 "CMD Technology PCI0648", 80 cmd0643_9_chip_map, 81 }, 82 { PCI_PRODUCT_CMDTECH_649, 83 0, 84 "CMD Technology PCI0649", 85 cmd0643_9_chip_map, 86 }, 87 { PCI_PRODUCT_CMDTECH_680, 88 0, 89 "Silicon Image 0680", 90 cmd680_chip_map, 91 }, 92 { 0, 93 0, 94 NULL, 95 NULL 96 } 97 }; 98 99 static int 100 cmdide_match(device_t parent, cfdata_t match, void *aux) 101 { 102 struct pci_attach_args *pa = aux; 103 104 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CMDTECH) { 105 if (pciide_lookup_product(pa->pa_id, pciide_cmd_products)) 106 return (2); 107 } 108 return (0); 109 } 110 111 static void 112 cmdide_attach(device_t parent, device_t self, void *aux) 113 { 114 struct pci_attach_args *pa = aux; 115 struct pciide_softc *sc = device_private(self); 116 117 sc->sc_wdcdev.sc_atac.atac_dev = self; 118 119 pciide_common_attach(sc, pa, 120 pciide_lookup_product(pa->pa_id, pciide_cmd_products)); 121 122 } 123 124 static void 125 cmd_channel_map(const struct pci_attach_args *pa, struct pciide_softc *sc, 126 int channel) 127 { 128 struct pciide_channel *cp = &sc->pciide_channels[channel]; 129 u_int8_t ctrl = pciide_pci_read(sc->sc_pc, sc->sc_tag, CMD_CTRL); 130 int interface, one_channel; 131 132 /* 133 * The 0648/0649 can be told to identify as a RAID controller. 134 * In this case, we have to fake interface 135 */ 136 if (PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_IDE) { 137 interface = PCIIDE_INTERFACE_SETTABLE(0) | 138 PCIIDE_INTERFACE_SETTABLE(1); 139 if (pciide_pci_read(pa->pa_pc, pa->pa_tag, CMD_CONF) & 140 CMD_CONF_DSA1) 141 interface |= PCIIDE_INTERFACE_PCI(0) | 142 PCIIDE_INTERFACE_PCI(1); 143 } else { 144 interface = PCI_INTERFACE(pa->pa_class); 145 } 146 147 sc->wdc_chanarray[channel] = &cp->ata_channel; 148 cp->name = PCIIDE_CHANNEL_NAME(channel); 149 cp->ata_channel.ch_channel = channel; 150 cp->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac; 151 sc->sc_wdcdev.wdc_maxdrives = 2; 152 153 /* 154 * Older CMD64X doesn't have independent channels 155 */ 156 switch (sc->sc_pp->ide_product) { 157 case PCI_PRODUCT_CMDTECH_649: 158 one_channel = 0; 159 break; 160 default: 161 one_channel = 1; 162 break; 163 } 164 165 if (channel > 0 && one_channel) { 166 cp->ata_channel.ch_queue = 167 sc->pciide_channels[0].ata_channel.ch_queue; 168 } else { 169 cp->ata_channel.ch_queue = 170 malloc(sizeof(struct ata_queue), M_DEVBUF, M_NOWAIT); 171 } 172 if (cp->ata_channel.ch_queue == NULL) { 173 aprint_error("%s %s channel: " 174 "can't allocate memory for command queue", 175 device_xname(sc->sc_wdcdev.sc_atac.atac_dev), cp->name); 176 return; 177 } 178 179 aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, 180 "%s channel %s to %s mode\n", cp->name, 181 (interface & PCIIDE_INTERFACE_SETTABLE(channel)) ? 182 "configured" : "wired", 183 (interface & PCIIDE_INTERFACE_PCI(channel)) ? 184 "native-PCI" : "compatibility"); 185 186 /* 187 * with a CMD PCI64x, if we get here, the first channel is enabled: 188 * there's no way to disable the first channel without disabling 189 * the whole device 190 */ 191 if (channel != 0 && (ctrl & CMD_CTRL_2PORT) == 0) { 192 aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, 193 "%s channel ignored (disabled)\n", cp->name); 194 cp->ata_channel.ch_flags |= ATACH_DISABLED; 195 return; 196 } 197 198 pciide_mapchan(pa, cp, interface, cmd_pci_intr); 199 } 200 201 static int 202 cmd_pci_intr(void *arg) 203 { 204 struct pciide_softc *sc = arg; 205 struct pciide_channel *cp; 206 struct ata_channel *wdc_cp; 207 int i, rv, crv; 208 u_int32_t priirq, secirq; 209 210 rv = 0; 211 priirq = pciide_pci_read(sc->sc_pc, sc->sc_tag, CMD_CONF); 212 secirq = pciide_pci_read(sc->sc_pc, sc->sc_tag, CMD_ARTTIM23); 213 for (i = 0; i < sc->sc_wdcdev.sc_atac.atac_nchannels; i++) { 214 cp = &sc->pciide_channels[i]; 215 wdc_cp = &cp->ata_channel; 216 /* If a compat channel skip. */ 217 if (cp->compat) 218 continue; 219 if ((i == 0 && (priirq & CMD_CONF_DRV0_INTR)) || 220 (i == 1 && (secirq & CMD_ARTTIM23_IRQ))) { 221 crv = wdcintr(wdc_cp); 222 if (crv == 0) { 223 aprint_error("%s:%d: bogus intr\n", 224 device_xname( 225 sc->sc_wdcdev.sc_atac.atac_dev), i); 226 sc->sc_wdcdev.irqack(wdc_cp); 227 } else 228 rv = 1; 229 } 230 } 231 return rv; 232 } 233 234 static void 235 cmd_chip_map(struct pciide_softc *sc, const struct pci_attach_args *pa) 236 { 237 int channel; 238 239 /* 240 * For a CMD PCI064x, the use of PCI_COMMAND_IO_ENABLE 241 * and base addresses registers can be disabled at 242 * hardware level. In this case, the device is wired 243 * in compat mode and its first channel is always enabled, 244 * but we can't rely on PCI_COMMAND_IO_ENABLE. 245 * In fact, it seems that the first channel of the CMD PCI0640 246 * can't be disabled. 247 */ 248 249 #ifdef PCIIDE_CMD064x_DISABLE 250 if (pciide_chipen(sc, pa) == 0) 251 return; 252 #endif 253 254 aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, 255 "hardware does not support DMA\n"); 256 sc->sc_dma_ok = 0; 257 258 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 259 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 260 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16; 261 sc->sc_wdcdev.wdc_maxdrives = 2; 262 263 wdc_allocate_regs(&sc->sc_wdcdev); 264 265 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 266 channel++) { 267 cmd_channel_map(pa, sc, channel); 268 } 269 } 270 271 static void 272 cmd0643_9_chip_map(struct pciide_softc *sc, const struct pci_attach_args *pa) 273 { 274 int channel; 275 pcireg_t rev = PCI_REVISION(pa->pa_class); 276 277 /* 278 * For a CMD PCI064x, the use of PCI_COMMAND_IO_ENABLE 279 * and base addresses registers can be disabled at 280 * hardware level. In this case, the device is wired 281 * in compat mode and its first channel is always enabled, 282 * but we can't rely on PCI_COMMAND_IO_ENABLE. 283 * In fact, it seems that the first channel of the CMD PCI0640 284 * can't be disabled. 285 */ 286 287 #ifdef PCIIDE_CMD064x_DISABLE 288 if (pciide_chipen(sc, pa) == 0) 289 return; 290 #endif 291 292 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 293 "bus-master DMA support present"); 294 pciide_mapreg_dma(sc, pa); 295 aprint_verbose("\n"); 296 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32; 297 if (sc->sc_dma_ok) { 298 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; 299 switch (sc->sc_pp->ide_product) { 300 case PCI_PRODUCT_CMDTECH_649: 301 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA; 302 sc->sc_wdcdev.sc_atac.atac_udma_cap = 5; 303 sc->sc_wdcdev.irqack = cmd646_9_irqack; 304 break; 305 case PCI_PRODUCT_CMDTECH_648: 306 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA; 307 sc->sc_wdcdev.sc_atac.atac_udma_cap = 4; 308 sc->sc_wdcdev.irqack = cmd646_9_irqack; 309 break; 310 case PCI_PRODUCT_CMDTECH_646: 311 if (rev >= CMD0646U2_REV) { 312 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA; 313 sc->sc_wdcdev.sc_atac.atac_udma_cap = 2; 314 } else if (rev >= CMD0646U_REV) { 315 /* 316 * Linux's driver claims that the 646U is broken 317 * with UDMA. Only enable it if we know what we're 318 * doing 319 */ 320 #ifdef PCIIDE_CMD0646U_ENABLEUDMA 321 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA; 322 sc->sc_wdcdev.sc_atac.atac_udma_cap = 2; 323 #endif 324 /* explicitly disable UDMA */ 325 pciide_pci_write(sc->sc_pc, sc->sc_tag, 326 CMD_UDMATIM(0), 0); 327 pciide_pci_write(sc->sc_pc, sc->sc_tag, 328 CMD_UDMATIM(1), 0); 329 } 330 sc->sc_wdcdev.irqack = cmd646_9_irqack; 331 break; 332 default: 333 sc->sc_wdcdev.irqack = pciide_irqack; 334 } 335 } 336 337 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 338 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 339 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 340 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 341 sc->sc_wdcdev.sc_atac.atac_set_modes = cmd0643_9_setup_channel; 342 343 ATADEBUG_PRINT(("cmd0643_9_chip_map: old timings reg 0x%x 0x%x\n", 344 pci_conf_read(sc->sc_pc, sc->sc_tag, 0x54), 345 pci_conf_read(sc->sc_pc, sc->sc_tag, 0x58)), 346 DEBUG_PROBE); 347 348 wdc_allocate_regs(&sc->sc_wdcdev); 349 350 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 351 channel++) 352 cmd_channel_map(pa, sc, channel); 353 354 /* 355 * note - this also makes sure we clear the irq disable and reset 356 * bits 357 */ 358 pciide_pci_write(sc->sc_pc, sc->sc_tag, CMD_DMA_MODE, CMD_DMA_MULTIPLE); 359 ATADEBUG_PRINT(("cmd0643_9_chip_map: timings reg now 0x%x 0x%x\n", 360 pci_conf_read(sc->sc_pc, sc->sc_tag, 0x54), 361 pci_conf_read(sc->sc_pc, sc->sc_tag, 0x58)), 362 DEBUG_PROBE); 363 } 364 365 static void 366 cmd0643_9_setup_channel(struct ata_channel *chp) 367 { 368 struct ata_drive_datas *drvp; 369 u_int8_t tim; 370 u_int32_t idedma_ctl, udma_reg; 371 int drive, s; 372 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 373 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 374 375 idedma_ctl = 0; 376 /* setup DMA if needed */ 377 pciide_channel_dma_setup(cp); 378 379 for (drive = 0; drive < 2; drive++) { 380 drvp = &chp->ch_drive[drive]; 381 /* If no drive, skip */ 382 if (drvp->drive_type == ATA_DRIVET_NONE) 383 continue; 384 /* add timing values, setup DMA if needed */ 385 tim = cmd0643_9_data_tim_pio[drvp->PIO_mode]; 386 if (drvp->drive_flags & (ATA_DRIVE_DMA | ATA_DRIVE_UDMA)) { 387 if (drvp->drive_flags & ATA_DRIVE_UDMA) { 388 /* UltraDMA on a 646U2, 0648 or 0649 */ 389 s = splbio(); 390 drvp->drive_flags &= ~ATA_DRIVE_DMA; 391 splx(s); 392 udma_reg = pciide_pci_read(sc->sc_pc, 393 sc->sc_tag, CMD_UDMATIM(chp->ch_channel)); 394 if (drvp->UDMA_mode > 2 && 395 (pciide_pci_read(sc->sc_pc, sc->sc_tag, 396 CMD_BICSR) & 397 CMD_BICSR_80(chp->ch_channel)) == 0) 398 drvp->UDMA_mode = 2; 399 if (drvp->UDMA_mode > 2) 400 udma_reg &= ~CMD_UDMATIM_UDMA33(drive); 401 else if (sc->sc_wdcdev.sc_atac.atac_udma_cap > 2) 402 udma_reg |= CMD_UDMATIM_UDMA33(drive); 403 udma_reg |= CMD_UDMATIM_UDMA(drive); 404 udma_reg &= ~(CMD_UDMATIM_TIM_MASK << 405 CMD_UDMATIM_TIM_OFF(drive)); 406 udma_reg |= 407 (cmd0646_9_tim_udma[drvp->UDMA_mode] << 408 CMD_UDMATIM_TIM_OFF(drive)); 409 pciide_pci_write(sc->sc_pc, sc->sc_tag, 410 CMD_UDMATIM(chp->ch_channel), udma_reg); 411 } else { 412 /* 413 * use Multiword DMA. 414 * Timings will be used for both PIO and DMA, 415 * so adjust DMA mode if needed 416 * if we have a 0646U2/8/9, turn off UDMA 417 */ 418 if (sc->sc_wdcdev.sc_atac.atac_cap & ATAC_CAP_UDMA) { 419 udma_reg = pciide_pci_read(sc->sc_pc, 420 sc->sc_tag, 421 CMD_UDMATIM(chp->ch_channel)); 422 udma_reg &= ~CMD_UDMATIM_UDMA(drive); 423 pciide_pci_write(sc->sc_pc, sc->sc_tag, 424 CMD_UDMATIM(chp->ch_channel), 425 udma_reg); 426 } 427 if (drvp->PIO_mode >= 3 && 428 (drvp->DMA_mode + 2) > drvp->PIO_mode) { 429 drvp->DMA_mode = drvp->PIO_mode - 2; 430 } 431 tim = cmd0643_9_data_tim_dma[drvp->DMA_mode]; 432 } 433 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 434 } 435 pciide_pci_write(sc->sc_pc, sc->sc_tag, 436 CMD_DATA_TIM(chp->ch_channel, drive), tim); 437 } 438 if (idedma_ctl != 0) { 439 /* Add software bits in status register */ 440 bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0, 441 idedma_ctl); 442 } 443 } 444 445 static void 446 cmd646_9_irqack(struct ata_channel *chp) 447 { 448 u_int32_t priirq, secirq; 449 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 450 451 if (chp->ch_channel == 0) { 452 priirq = pciide_pci_read(sc->sc_pc, sc->sc_tag, CMD_CONF); 453 pciide_pci_write(sc->sc_pc, sc->sc_tag, CMD_CONF, priirq); 454 } else { 455 secirq = pciide_pci_read(sc->sc_pc, sc->sc_tag, CMD_ARTTIM23); 456 pciide_pci_write(sc->sc_pc, sc->sc_tag, CMD_ARTTIM23, secirq); 457 } 458 pciide_irqack(chp); 459 } 460 461 static void 462 cmd680_chip_map(struct pciide_softc *sc, const struct pci_attach_args *pa) 463 { 464 int channel; 465 466 if (pciide_chipen(sc, pa) == 0) 467 return; 468 469 aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, 470 "bus-master DMA support present"); 471 pciide_mapreg_dma(sc, pa); 472 aprint_verbose("\n"); 473 sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_DATA32; 474 if (sc->sc_dma_ok) { 475 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; 476 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_UDMA; 477 sc->sc_wdcdev.sc_atac.atac_udma_cap = 6; 478 sc->sc_wdcdev.irqack = pciide_irqack; 479 } 480 481 sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; 482 sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; 483 sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; 484 sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; 485 sc->sc_wdcdev.sc_atac.atac_set_modes = cmd680_setup_channel; 486 487 pciide_pci_write(sc->sc_pc, sc->sc_tag, 0x80, 0x00); 488 pciide_pci_write(sc->sc_pc, sc->sc_tag, 0x84, 0x00); 489 pciide_pci_write(sc->sc_pc, sc->sc_tag, 0x8a, 490 pciide_pci_read(sc->sc_pc, sc->sc_tag, 0x8a) | 0x01); 491 492 wdc_allocate_regs(&sc->sc_wdcdev); 493 494 for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; 495 channel++) 496 cmd680_channel_map(pa, sc, channel); 497 } 498 499 static void 500 cmd680_channel_map(const struct pci_attach_args *pa, struct pciide_softc *sc, 501 int channel) 502 { 503 struct pciide_channel *cp = &sc->pciide_channels[channel]; 504 int interface, i, reg; 505 static const u_int8_t init_val[] = 506 { 0x8a, 0x32, 0x8a, 0x32, 0x8a, 0x32, 507 0x92, 0x43, 0x92, 0x43, 0x09, 0x40, 0x09, 0x40 }; 508 509 if (PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_MASS_STORAGE_IDE) { 510 interface = PCIIDE_INTERFACE_SETTABLE(0) | 511 PCIIDE_INTERFACE_SETTABLE(1); 512 interface |= PCIIDE_INTERFACE_PCI(0) | 513 PCIIDE_INTERFACE_PCI(1); 514 } else { 515 interface = PCI_INTERFACE(pa->pa_class); 516 } 517 518 sc->wdc_chanarray[channel] = &cp->ata_channel; 519 cp->name = PCIIDE_CHANNEL_NAME(channel); 520 cp->ata_channel.ch_channel = channel; 521 cp->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac; 522 523 cp->ata_channel.ch_queue = 524 malloc(sizeof(struct ata_queue), M_DEVBUF, M_NOWAIT); 525 if (cp->ata_channel.ch_queue == NULL) { 526 aprint_error("%s %s channel: " 527 "can't allocate memory for command queue", 528 device_xname(sc->sc_wdcdev.sc_atac.atac_dev), cp->name); 529 return; 530 } 531 532 /* XXX */ 533 reg = 0xa2 + channel * 16; 534 for (i = 0; i < sizeof(init_val); i++) 535 pciide_pci_write(sc->sc_pc, sc->sc_tag, reg + i, init_val[i]); 536 537 aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, 538 "%s channel %s to %s mode\n", cp->name, 539 (interface & PCIIDE_INTERFACE_SETTABLE(channel)) ? 540 "configured" : "wired", 541 (interface & PCIIDE_INTERFACE_PCI(channel)) ? 542 "native-PCI" : "compatibility"); 543 544 pciide_mapchan(pa, cp, interface, pciide_pci_intr); 545 } 546 547 static void 548 cmd680_setup_channel(struct ata_channel *chp) 549 { 550 struct ata_drive_datas *drvp; 551 u_int8_t mode, off, scsc; 552 u_int16_t val; 553 u_int32_t idedma_ctl; 554 int drive, s; 555 struct pciide_channel *cp = CHAN_TO_PCHAN(chp); 556 struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); 557 pci_chipset_tag_t pc = sc->sc_pc; 558 pcitag_t pa = sc->sc_tag; 559 static const u_int8_t udma2_tbl[] = 560 { 0x0f, 0x0b, 0x07, 0x06, 0x03, 0x02, 0x01 }; 561 static const u_int8_t udma_tbl[] = 562 { 0x0c, 0x07, 0x05, 0x04, 0x02, 0x01, 0x00 }; 563 static const u_int16_t dma_tbl[] = 564 { 0x2208, 0x10c2, 0x10c1 }; 565 static const u_int16_t pio_tbl[] = 566 { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 }; 567 568 idedma_ctl = 0; 569 pciide_channel_dma_setup(cp); 570 mode = pciide_pci_read(pc, pa, 0x80 + chp->ch_channel * 4); 571 572 for (drive = 0; drive < 2; drive++) { 573 drvp = &chp->ch_drive[drive]; 574 /* If no drive, skip */ 575 if (drvp->drive_type == ATA_DRIVET_NONE) 576 continue; 577 mode &= ~(0x03 << (drive * 4)); 578 if (drvp->drive_flags & ATA_DRIVE_UDMA) { 579 s = splbio(); 580 drvp->drive_flags &= ~ATA_DRIVE_DMA; 581 splx(s); 582 off = 0xa0 + chp->ch_channel * 16; 583 if (drvp->UDMA_mode > 2 && 584 (pciide_pci_read(pc, pa, off) & 0x01) == 0) 585 drvp->UDMA_mode = 2; 586 scsc = pciide_pci_read(pc, pa, 0x8a); 587 if (drvp->UDMA_mode == 6 && (scsc & 0x30) == 0) { 588 pciide_pci_write(pc, pa, 0x8a, scsc | 0x01); 589 scsc = pciide_pci_read(pc, pa, 0x8a); 590 if ((scsc & 0x30) == 0) 591 drvp->UDMA_mode = 5; 592 } 593 mode |= 0x03 << (drive * 4); 594 off = 0xac + chp->ch_channel * 16 + drive * 2; 595 val = pciide_pci_read(pc, pa, off) & ~0x3f; 596 if (scsc & 0x30) 597 val |= udma2_tbl[drvp->UDMA_mode]; 598 else 599 val |= udma_tbl[drvp->UDMA_mode]; 600 pciide_pci_write(pc, pa, off, val); 601 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 602 } else if (drvp->drive_flags & ATA_DRIVE_DMA) { 603 mode |= 0x02 << (drive * 4); 604 off = 0xa8 + chp->ch_channel * 16 + drive * 2; 605 val = dma_tbl[drvp->DMA_mode]; 606 pciide_pci_write(pc, pa, off, val & 0xff); 607 pciide_pci_write(pc, pa, off+1, val >> 8); 608 idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive); 609 } else { 610 mode |= 0x01 << (drive * 4); 611 off = 0xa4 + chp->ch_channel * 16 + drive * 2; 612 val = pio_tbl[drvp->PIO_mode]; 613 pciide_pci_write(pc, pa, off, val & 0xff); 614 pciide_pci_write(pc, pa, off+1, val >> 8); 615 } 616 } 617 618 pciide_pci_write(pc, pa, 0x80 + chp->ch_channel * 4, mode); 619 if (idedma_ctl != 0) { 620 /* Add software bits in status register */ 621 bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0, 622 idedma_ctl); 623 } 624 } 625
Indexes created Tue Sep 23 23:09:58 GMT 2025