1 /* 2 * pata_ali.c - ALI 15x3 PATA for new ATA layer 3 * (C) 2005 Red Hat Inc 4 * 5 * based in part upon 6 * linux/drivers/ide/pci/alim15x3.c Version 0.17 2003/01/02 7 * 8 * Copyright (C) 1998-2000 Michel Aubry, Maintainer 9 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer 10 * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer 11 * 12 * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org) 13 * May be copied or modified under the terms of the GNU General Public License 14 * Copyright (C) 2002 Alan Cox <alan@redhat.com> 15 * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw> 16 * 17 * Documentation 18 * Chipset documentation available under NDA only 19 * 20 * TODO/CHECK 21 * Cannot have ATAPI on both master & slave for rev < c2 (???) but 22 * otherwise should do atapi DMA (For now for old we do PIO only for 23 * ATAPI) 24 * Review Sunblade workaround. 25 */ 26 27 #include <linux/kernel.h> 28 #include <linux/module.h> 29 #include <linux/pci.h> 30 #include <linux/init.h> 31 #include <linux/blkdev.h> 32 #include <linux/delay.h> 33 #include <scsi/scsi_host.h> 34 #include <linux/libata.h> 35 #include <linux/dmi.h> 36 37 #define DRV_NAME "pata_ali" 38 #define DRV_VERSION "0.7.8" 39 40 static int ali_atapi_dma; 41 module_param_named(atapi_dma, ali_atapi_dma, int, 0644); 42 MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)"); 43 44 static struct pci_dev *ali_isa_bridge; 45 46 /* 47 * Cable special cases 48 */ 49 50 static const struct dmi_system_id cable_dmi_table[] = { 51 { 52 .ident = "HP Pavilion N5430", 53 .matches = { 54 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), 55 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"), 56 }, 57 }, 58 { 59 .ident = "Toshiba Satellite S1800-814", 60 .matches = { 61 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 62 DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"), 63 }, 64 }, 65 { } 66 }; 67 68 static int ali_cable_override(struct pci_dev *pdev) 69 { 70 /* Fujitsu P2000 */ 71 if (pdev->subsystem_vendor == 0x10CF && pdev->subsystem_device == 0x10AF) 72 return 1; 73 /* Mitac 8317 (Winbook-A) and relatives */ 74 if (pdev->subsystem_vendor == 0x1071 && pdev->subsystem_device == 0x8317) 75 return 1; 76 /* Systems by DMI */ 77 if (dmi_check_system(cable_dmi_table)) 78 return 1; 79 return 0; 80 } 81 82 /** 83 * ali_c2_cable_detect - cable detection 84 * @ap: ATA port 85 * 86 * Perform cable detection for C2 and later revisions 87 */ 88 89 static int ali_c2_cable_detect(struct ata_port *ap) 90 { 91 struct pci_dev *pdev = to_pci_dev(ap->host->dev); 92 u8 ata66; 93 94 /* Certain laptops use short but suitable cables and don't 95 implement the detect logic */ 96 97 if (ali_cable_override(pdev)) 98 return ATA_CBL_PATA40_SHORT; 99 100 /* Host view cable detect 0x4A bit 0 primary bit 1 secondary 101 Bit set for 40 pin */ 102 pci_read_config_byte(pdev, 0x4A, &ata66); 103 if (ata66 & (1 << ap->port_no)) 104 return ATA_CBL_PATA40; 105 else 106 return ATA_CBL_PATA80; 107 } 108 109 /** 110 * ali_20_filter - filter for earlier ALI DMA 111 * @adev: ATA device 112 * @mask: received mask to manipulate and pass back 113 * 114 * Ensure that we do not do DMA on CD devices. We may be able to 115 * fix that later on. Also ensure we do not do UDMA on WDC drives 116 */ 117 118 static unsigned long ali_20_filter(struct ata_device *adev, unsigned long mask) 119 { 120 char model_num[ATA_ID_PROD_LEN + 1]; 121 /* No DMA on anything but a disk for now */ 122 if (adev->class != ATA_DEV_ATA) 123 mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA); 124 ata_id_c_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num)); 125 if (strstr(model_num, "WDC")) 126 mask &= ~ATA_MASK_UDMA; 127 return mask; 128 } 129 130 /** 131 * ali_fifo_control - FIFO manager 132 * @ap: ALi channel to control 133 * @adev: device for FIFO control 134 * @on: 0 for off 1 for on 135 * 136 * Enable or disable the FIFO on a given device. Because of the way the 137 * ALi FIFO works it provides a boost on ATA disk but can be confused by 138 * ATAPI and we must therefore manage it. 139 */ 140 141 static void ali_fifo_control(struct ata_port *ap, struct ata_device *adev, int on) 142 { 143 struct pci_dev *pdev = to_pci_dev(ap->host->dev); 144 int pio_fifo = 0x54 + ap->port_no; 145 u8 fifo; 146 int shift = 4 * adev->devno; 147 148 /* ATA - FIFO on set nibble to 0x05, ATAPI - FIFO off, set nibble to 149 0x00. Not all the docs agree but the behaviour we now use is the 150 one stated in the BIOS Programming Guide */ 151 152 pci_read_config_byte(pdev, pio_fifo, &fifo); 153 fifo &= ~(0x0F << shift); 154 fifo |= (on << shift); 155 pci_write_config_byte(pdev, pio_fifo, fifo); 156 } 157 158 /** 159 * ali_program_modes - load mode registers 160 * @ap: ALi channel to load 161 * @adev: Device the timing is for 162 * @t: timing data 163 * @ultra: UDMA timing or zero for off 164 * 165 * Loads the timing registers for cmd/data and disable UDMA if 166 * ultra is zero. If ultra is set then load and enable the UDMA 167 * timing but do not touch the command/data timing. 168 */ 169 170 static void ali_program_modes(struct ata_port *ap, struct ata_device *adev, struct ata_timing *t, u8 ultra) 171 { 172 struct pci_dev *pdev = to_pci_dev(ap->host->dev); 173 int cas = 0x58 + 4 * ap->port_no; /* Command timing */ 174 int cbt = 0x59 + 4 * ap->port_no; /* Command timing */ 175 int drwt = 0x5A + 4 * ap->port_no + adev->devno; /* R/W timing */ 176 int udmat = 0x56 + ap->port_no; /* UDMA timing */ 177 int shift = 4 * adev->devno; 178 u8 udma; 179 180 if (t != NULL) { 181 t->setup = clamp_val(t->setup, 1, 8) & 7; 182 t->act8b = clamp_val(t->act8b, 1, 8) & 7; 183 t->rec8b = clamp_val(t->rec8b, 1, 16) & 15; 184 t->active = clamp_val(t->active, 1, 8) & 7; 185 t->recover = clamp_val(t->recover, 1, 16) & 15; 186 187 pci_write_config_byte(pdev, cas, t->setup); 188 pci_write_config_byte(pdev, cbt, (t->act8b << 4) | t->rec8b); 189 pci_write_config_byte(pdev, drwt, (t->active << 4) | t->recover); 190 } 191 192 /* Set up the UDMA enable */ 193 pci_read_config_byte(pdev, udmat, &udma); 194 udma &= ~(0x0F << shift); 195 udma |= ultra << shift; 196 pci_write_config_byte(pdev, udmat, udma); 197 } 198 199 /** 200 * ali_set_piomode - set initial PIO mode data 201 * @ap: ATA interface 202 * @adev: ATA device 203 * 204 * Program the ALi registers for PIO mode. 205 */ 206 207 static void ali_set_piomode(struct ata_port *ap, struct ata_device *adev) 208 { 209 struct ata_device *pair = ata_dev_pair(adev); 210 struct ata_timing t; 211 unsigned long T = 1000000000 / 33333; /* PCI clock based */ 212 213 ata_timing_compute(adev, adev->pio_mode, &t, T, 1); 214 if (pair) { 215 struct ata_timing p; 216 ata_timing_compute(pair, pair->pio_mode, &p, T, 1); 217 ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); 218 if (ata_dma_enabled(pair)) { 219 ata_timing_compute(pair, pair->dma_mode, &p, T, 1); 220 ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); 221 } 222 } 223 224 /* PIO FIFO is only permitted on ATA disk */ 225 if (adev->class != ATA_DEV_ATA) 226 ali_fifo_control(ap, adev, 0x00); 227 ali_program_modes(ap, adev, &t, 0); 228 if (adev->class == ATA_DEV_ATA) 229 ali_fifo_control(ap, adev, 0x05); 230 231 } 232 233 /** 234 * ali_set_dmamode - set initial DMA mode data 235 * @ap: ATA interface 236 * @adev: ATA device 237 * 238 * Program the ALi registers for DMA mode. 239 */ 240 241 static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev) 242 { 243 static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD }; 244 struct ata_device *pair = ata_dev_pair(adev); 245 struct ata_timing t; 246 unsigned long T = 1000000000 / 33333; /* PCI clock based */ 247 struct pci_dev *pdev = to_pci_dev(ap->host->dev); 248 249 250 if (adev->class == ATA_DEV_ATA) 251 ali_fifo_control(ap, adev, 0x08); 252 253 if (adev->dma_mode >= XFER_UDMA_0) { 254 ali_program_modes(ap, adev, NULL, udma_timing[adev->dma_mode - XFER_UDMA_0]); 255 if (adev->dma_mode >= XFER_UDMA_3) { 256 u8 reg4b; 257 pci_read_config_byte(pdev, 0x4B, ®4b); 258 reg4b |= 1; 259 pci_write_config_byte(pdev, 0x4B, reg4b); 260 } 261 } else { 262 ata_timing_compute(adev, adev->dma_mode, &t, T, 1); 263 if (pair) { 264 struct ata_timing p; 265 ata_timing_compute(pair, pair->pio_mode, &p, T, 1); 266 ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); 267 if (ata_dma_enabled(pair)) { 268 ata_timing_compute(pair, pair->dma_mode, &p, T, 1); 269 ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT); 270 } 271 } 272 ali_program_modes(ap, adev, &t, 0); 273 } 274 } 275 276 /** 277 * ali_warn_atapi_dma - Warn about ATAPI DMA disablement 278 * @adev: Device 279 * 280 * Whine about ATAPI DMA disablement if @adev is an ATAPI device. 281 * Can be used as ->dev_config. 282 */ 283 284 static void ali_warn_atapi_dma(struct ata_device *adev) 285 { 286 struct ata_eh_context *ehc = &adev->link->eh_context; 287 int print_info = ehc->i.flags & ATA_EHI_PRINTINFO; 288 289 if (print_info && adev->class == ATA_DEV_ATAPI && !ali_atapi_dma) { 290 ata_dev_warn(adev, 291 "WARNING: ATAPI DMA disabled for reliability issues. It can be enabled\n"); 292 ata_dev_warn(adev, 293 "WARNING: via pata_ali.atapi_dma modparam or corresponding sysfs node.\n"); 294 } 295 } 296 297 /** 298 * ali_lock_sectors - Keep older devices to 255 sector mode 299 * @adev: Device 300 * 301 * Called during the bus probe for each device that is found. We use 302 * this call to lock the sector count of the device to 255 or less on 303 * older ALi controllers. If we didn't do this then large I/O's would 304 * require LBA48 commands which the older ALi requires are issued by 305 * slower PIO methods 306 */ 307 308 static void ali_lock_sectors(struct ata_device *adev) 309 { 310 adev->max_sectors = 255; 311 ali_warn_atapi_dma(adev); 312 } 313 314 /** 315 * ali_check_atapi_dma - DMA check for most ALi controllers 316 * @qc: Command to complete 317 * 318 * Called to decide whether commands should be sent by DMA or PIO 319 */ 320 321 static int ali_check_atapi_dma(struct ata_queued_cmd *qc) 322 { 323 if (!ali_atapi_dma) { 324 /* FIXME: pata_ali can't do ATAPI DMA reliably but the 325 * IDE alim15x3 driver can. I tried lots of things 326 * but couldn't find what the actual difference was. 327 * If you got an idea, please write it to 328 * linux-ide@vger.kernel.org and cc htejun@gmail.com. 329 * 330 * Disable ATAPI DMA for now. 331 */ 332 return -EOPNOTSUPP; 333 } 334 335 /* If its not a media command, its not worth it */ 336 if (atapi_cmd_type(qc->cdb[0]) == ATAPI_MISC) 337 return -EOPNOTSUPP; 338 return 0; 339 } 340 341 static void ali_c2_c3_postreset(struct ata_link *link, unsigned int *classes) 342 { 343 u8 r; 344 int port_bit = 4 << link->ap->port_no; 345 346 /* If our bridge is an ALI 1533 then do the extra work */ 347 if (ali_isa_bridge) { 348 /* Tristate and re-enable the bus signals */ 349 pci_read_config_byte(ali_isa_bridge, 0x58, &r); 350 r &= ~port_bit; 351 pci_write_config_byte(ali_isa_bridge, 0x58, r); 352 r |= port_bit; 353 pci_write_config_byte(ali_isa_bridge, 0x58, r); 354 } 355 ata_sff_postreset(link, classes); 356 } 357 358 static struct scsi_host_template ali_sht = { 359 ATA_BMDMA_SHT(DRV_NAME), 360 }; 361 362 /* 363 * Port operations for PIO only ALi 364 */ 365 366 static struct ata_port_operations ali_early_port_ops = { 367 .inherits = &ata_sff_port_ops, 368 .cable_detect = ata_cable_40wire, 369 .set_piomode = ali_set_piomode, 370 .sff_data_xfer = ata_sff_data_xfer32, 371 }; 372 373 static const struct ata_port_operations ali_dma_base_ops = { 374 .inherits = &ata_bmdma32_port_ops, 375 .set_piomode = ali_set_piomode, 376 .set_dmamode = ali_set_dmamode, 377 }; 378 379 /* 380 * Port operations for DMA capable ALi without cable 381 * detect 382 */ 383 static struct ata_port_operations ali_20_port_ops = { 384 .inherits = &ali_dma_base_ops, 385 .cable_detect = ata_cable_40wire, 386 .mode_filter = ali_20_filter, 387 .check_atapi_dma = ali_check_atapi_dma, 388 .dev_config = ali_lock_sectors, 389 }; 390 391 /* 392 * Port operations for DMA capable ALi with cable detect 393 */ 394 static struct ata_port_operations ali_c2_port_ops = { 395 .inherits = &ali_dma_base_ops, 396 .check_atapi_dma = ali_check_atapi_dma, 397 .cable_detect = ali_c2_cable_detect, 398 .dev_config = ali_lock_sectors, 399 .postreset = ali_c2_c3_postreset, 400 }; 401 402 /* 403 * Port operations for DMA capable ALi with cable detect 404 */ 405 static struct ata_port_operations ali_c4_port_ops = { 406 .inherits = &ali_dma_base_ops, 407 .check_atapi_dma = ali_check_atapi_dma, 408 .cable_detect = ali_c2_cable_detect, 409 .dev_config = ali_lock_sectors, 410 }; 411 412 /* 413 * Port operations for DMA capable ALi with cable detect and LBA48 414 */ 415 static struct ata_port_operations ali_c5_port_ops = { 416 .inherits = &ali_dma_base_ops, 417 .check_atapi_dma = ali_check_atapi_dma, 418 .dev_config = ali_warn_atapi_dma, 419 .cable_detect = ali_c2_cable_detect, 420 }; 421 422 423 /** 424 * ali_init_chipset - chip setup function 425 * @pdev: PCI device of ATA controller 426 * 427 * Perform the setup on the device that must be done both at boot 428 * and at resume time. 429 */ 430 431 static void ali_init_chipset(struct pci_dev *pdev) 432 { 433 u8 tmp; 434 struct pci_dev *north; 435 436 /* 437 * The chipset revision selects the driver operations and 438 * mode data. 439 */ 440 441 if (pdev->revision <= 0x20) { 442 pci_read_config_byte(pdev, 0x53, &tmp); 443 tmp |= 0x03; 444 pci_write_config_byte(pdev, 0x53, tmp); 445 } else { 446 pci_read_config_byte(pdev, 0x4a, &tmp); 447 pci_write_config_byte(pdev, 0x4a, tmp | 0x20); 448 pci_read_config_byte(pdev, 0x4B, &tmp); 449 if (pdev->revision < 0xC2) 450 /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */ 451 /* Clear CD-ROM DMA write bit */ 452 tmp &= 0x7F; 453 /* Cable and UDMA */ 454 if (pdev->revision >= 0xc2) 455 tmp |= 0x01; 456 pci_write_config_byte(pdev, 0x4B, tmp | 0x08); 457 /* 458 * CD_ROM DMA on (0x53 bit 0). Enable this even if we want 459 * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control 460 * via 0x54/55. 461 */ 462 pci_read_config_byte(pdev, 0x53, &tmp); 463 if (pdev->revision >= 0xc7) 464 tmp |= 0x03; 465 else 466 tmp |= 0x01; /* CD_ROM enable for DMA */ 467 pci_write_config_byte(pdev, 0x53, tmp); 468 } 469 north = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), 0, 470 PCI_DEVFN(0, 0)); 471 if (north && north->vendor == PCI_VENDOR_ID_AL && ali_isa_bridge) { 472 /* Configure the ALi bridge logic. For non ALi rely on BIOS. 473 Set the south bridge enable bit */ 474 pci_read_config_byte(ali_isa_bridge, 0x79, &tmp); 475 if (pdev->revision == 0xC2) 476 pci_write_config_byte(ali_isa_bridge, 0x79, tmp | 0x04); 477 else if (pdev->revision > 0xC2 && pdev->revision < 0xC5) 478 pci_write_config_byte(ali_isa_bridge, 0x79, tmp | 0x02); 479 } 480 pci_dev_put(north); 481 ata_pci_bmdma_clear_simplex(pdev); 482 } 483 /** 484 * ali_init_one - discovery callback 485 * @pdev: PCI device ID 486 * @id: PCI table info 487 * 488 * An ALi IDE interface has been discovered. Figure out what revision 489 * and perform configuration work before handing it to the ATA layer 490 */ 491 492 static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id) 493 { 494 static const struct ata_port_info info_early = { 495 .flags = ATA_FLAG_SLAVE_POSS, 496 .pio_mask = ATA_PIO4, 497 .port_ops = &ali_early_port_ops 498 }; 499 /* Revision 0x20 added DMA */ 500 static const struct ata_port_info info_20 = { 501 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | 502 ATA_FLAG_IGN_SIMPLEX, 503 .pio_mask = ATA_PIO4, 504 .mwdma_mask = ATA_MWDMA2, 505 .port_ops = &ali_20_port_ops 506 }; 507 /* Revision 0x20 with support logic added UDMA */ 508 static const struct ata_port_info info_20_udma = { 509 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | 510 ATA_FLAG_IGN_SIMPLEX, 511 .pio_mask = ATA_PIO4, 512 .mwdma_mask = ATA_MWDMA2, 513 .udma_mask = ATA_UDMA2, 514 .port_ops = &ali_20_port_ops 515 }; 516 /* Revision 0xC2 adds UDMA66 */ 517 static const struct ata_port_info info_c2 = { 518 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | 519 ATA_FLAG_IGN_SIMPLEX, 520 .pio_mask = ATA_PIO4, 521 .mwdma_mask = ATA_MWDMA2, 522 .udma_mask = ATA_UDMA4, 523 .port_ops = &ali_c2_port_ops 524 }; 525 /* Revision 0xC3 is UDMA66 for now */ 526 static const struct ata_port_info info_c3 = { 527 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | 528 ATA_FLAG_IGN_SIMPLEX, 529 .pio_mask = ATA_PIO4, 530 .mwdma_mask = ATA_MWDMA2, 531 .udma_mask = ATA_UDMA4, 532 .port_ops = &ali_c2_port_ops 533 }; 534 /* Revision 0xC4 is UDMA100 */ 535 static const struct ata_port_info info_c4 = { 536 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48 | 537 ATA_FLAG_IGN_SIMPLEX, 538 .pio_mask = ATA_PIO4, 539 .mwdma_mask = ATA_MWDMA2, 540 .udma_mask = ATA_UDMA5, 541 .port_ops = &ali_c4_port_ops 542 }; 543 /* Revision 0xC5 is UDMA133 with LBA48 DMA */ 544 static const struct ata_port_info info_c5 = { 545 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_IGN_SIMPLEX, 546 .pio_mask = ATA_PIO4, 547 .mwdma_mask = ATA_MWDMA2, 548 .udma_mask = ATA_UDMA6, 549 .port_ops = &ali_c5_port_ops 550 }; 551 552 const struct ata_port_info *ppi[] = { NULL, NULL }; 553 u8 tmp; 554 int rc; 555 556 rc = pcim_enable_device(pdev); 557 if (rc) 558 return rc; 559 560 /* 561 * The chipset revision selects the driver operations and 562 * mode data. 563 */ 564 565 if (pdev->revision < 0x20) { 566 ppi[0] = &info_early; 567 } else if (pdev->revision < 0xC2) { 568 ppi[0] = &info_20; 569 } else if (pdev->revision == 0xC2) { 570 ppi[0] = &info_c2; 571 } else if (pdev->revision == 0xC3) { 572 ppi[0] = &info_c3; 573 } else if (pdev->revision == 0xC4) { 574 ppi[0] = &info_c4; 575 } else 576 ppi[0] = &info_c5; 577 578 ali_init_chipset(pdev); 579 580 if (ali_isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) { 581 /* Are we paired with a UDMA capable chip */ 582 pci_read_config_byte(ali_isa_bridge, 0x5E, &tmp); 583 if ((tmp & 0x1E) == 0x12) 584 ppi[0] = &info_20_udma; 585 } 586 587 if (!ppi[0]->mwdma_mask && !ppi[0]->udma_mask) 588 return ata_pci_sff_init_one(pdev, ppi, &ali_sht, NULL, 0); 589 else 590 return ata_pci_bmdma_init_one(pdev, ppi, &ali_sht, NULL, 0); 591 } 592 593 #ifdef CONFIG_PM_SLEEP 594 static int ali_reinit_one(struct pci_dev *pdev) 595 { 596 struct ata_host *host = pci_get_drvdata(pdev); 597 int rc; 598 599 rc = ata_pci_device_do_resume(pdev); 600 if (rc) 601 return rc; 602 ali_init_chipset(pdev); 603 ata_host_resume(host); 604 return 0; 605 } 606 #endif 607 608 static const struct pci_device_id ali[] = { 609 { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), }, 610 { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), }, 611 612 { }, 613 }; 614 615 static struct pci_driver ali_pci_driver = { 616 .name = DRV_NAME, 617 .id_table = ali, 618 .probe = ali_init_one, 619 .remove = ata_pci_remove_one, 620 #ifdef CONFIG_PM_SLEEP 621 .suspend = ata_pci_device_suspend, 622 .resume = ali_reinit_one, 623 #endif 624 }; 625 626 static int __init ali_init(void) 627 { 628 int ret; 629 ali_isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); 630 631 ret = pci_register_driver(&ali_pci_driver); 632 if (ret < 0) 633 pci_dev_put(ali_isa_bridge); 634 return ret; 635 } 636 637 638 static void __exit ali_exit(void) 639 { 640 pci_unregister_driver(&ali_pci_driver); 641 pci_dev_put(ali_isa_bridge); 642 } 643 644 645 MODULE_AUTHOR("Alan Cox"); 646 MODULE_DESCRIPTION("low-level driver for ALi PATA"); 647 MODULE_LICENSE("GPL"); 648 MODULE_DEVICE_TABLE(pci, ali); 649 MODULE_VERSION(DRV_VERSION); 650 651 module_init(ali_init); 652 module_exit(ali_exit); 653