drivers/ata/pata_ali.c

   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.
  23  */
  24
  25 #include <linux/kernel.h>
  26 #include <linux/module.h>
  27 #include <linux/pci.h>
  28 #include <linux/init.h>
  29 #include <linux/blkdev.h>
  30 #include <linux/delay.h>
  31 #include <scsi/scsi_host.h>
  32 #include <linux/libata.h>
  33 #include <linux/dmi.h>
  34
  35 #define DRV_NAME "pata_ali"
  36 #define DRV_VERSION "0.7.5"
  37
  38 static int ali_atapi_dma = 0;
  39 module_param_named(atapi_dma, ali_atapi_dma, int, 0644);
  40 MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)");
  41
  42 /*
  43  *      Cable special cases
  44  */
  45
  46 static const struct dmi_system_id cable_dmi_table[] = {
  47         {
  48                 .ident = "HP Pavilion N5430",
  49                 .matches = {
  50                         DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
  51                         DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
  52                 },
  53         },
  54         {
  55                 .ident = "Toshiba Satelite S1800-814",
  56                 .matches = {
  57                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
  58                         DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"),
  59                 },
  60         },
  61         { }
  62 };
  63
  64 static int ali_cable_override(struct pci_dev *pdev)
  65 {
  66         /* Fujitsu P2000 */
  67         if (pdev->subsystem_vendor == 0x10CF && pdev->subsystem_device == 0x10AF)
  68                 return 1;
  69         /* Mitac 8317 (Winbook-A) and relatives */
  70         if (pdev->subsystem_vendor == 0x1071 && pdev->subsystem_device == 0x8317)
  71                 return 1;
  72         /* Systems by DMI */
  73         if (dmi_check_system(cable_dmi_table))
  74                 return 1;
  75         return 0;
  76 }
  77
  78 /**
  79  *      ali_c2_cable_detect     -       cable detection
  80  *      @ap: ATA port
  81  *
  82  *      Perform cable detection for C2 and later revisions
  83  */
  84
  85 static int ali_c2_cable_detect(struct ata_port *ap)
  86 {
  87         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  88         u8 ata66;
  89
  90         /* Certain laptops use short but suitable cables and don't
  91            implement the detect logic */
  92
  93         if (ali_cable_override(pdev))
  94                 return ATA_CBL_PATA40_SHORT;
  95
  96         /* Host view cable detect 0x4A bit 0 primary bit 1 secondary
  97            Bit set for 40 pin */
  98         pci_read_config_byte(pdev, 0x4A, &ata66);
  99         if (ata66 & (1 << ap->port_no))
 100                 return ATA_CBL_PATA40;
 101         else
 102                 return ATA_CBL_PATA80;
 103 }
 104
 105 /**
 106  *      ali_20_filter           -       filter for earlier ALI DMA
 107  *      @ap: ALi ATA port
 108  *      @adev: attached device
 109  *
 110  *      Ensure that we do not do DMA on CD devices. We may be able to
 111  *      fix that later on. Also ensure we do not do UDMA on WDC drives
 112  */
 113
 114 static unsigned long ali_20_filter(struct ata_device *adev, unsigned long mask)
 115 {
 116         char model_num[ATA_ID_PROD_LEN + 1];
 117         /* No DMA on anything but a disk for now */
 118         if (adev->class != ATA_DEV_ATA)
 119                 mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
 120         ata_id_c_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num));
 121         if (strstr(model_num, "WDC"))
 122                 return mask &= ~ATA_MASK_UDMA;
 123         return ata_bmdma_mode_filter(adev, mask);
 124 }
 125
 126 /**
 127  *      ali_fifo_control        -       FIFO manager
 128  *      @ap: ALi channel to control
 129  *      @adev: device for FIFO control
 130  *      @on: 0 for off 1 for on
 131  *
 132  *      Enable or disable the FIFO on a given device. Because of the way the
 133  *      ALi FIFO works it provides a boost on ATA disk but can be confused by
 134  *      ATAPI and we must therefore manage it.
 135  */
 136
 137 static void ali_fifo_control(struct ata_port *ap, struct ata_device *adev, int on)
 138 {
 139         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 140         int pio_fifo = 0x54 + ap->port_no;
 141         u8 fifo;
 142         int shift = 4 * adev->devno;
 143
 144         /* ATA - FIFO on set nibble to 0x05, ATAPI - FIFO off, set nibble to
 145            0x00. Not all the docs agree but the behaviour we now use is the
 146            one stated in the BIOS Programming Guide */
 147
 148         pci_read_config_byte(pdev, pio_fifo, &fifo);
 149         fifo &= ~(0x0F << shift);
 150         if (on)
 151                 fifo |= (on << shift);
 152         pci_write_config_byte(pdev, pio_fifo, fifo);
 153 }
 154
 155 /**
 156  *      ali_program_modes       -       load mode registers
 157  *      @ap: ALi channel to load
 158  *      @adev: Device the timing is for
 159  *      @cmd: Command timing
 160  *      @data: Data timing
 161  *      @ultra: UDMA timing or zero for off
 162  *
 163  *      Loads the timing registers for cmd/data and disable UDMA if
 164  *      ultra is zero. If ultra is set then load and enable the UDMA
 165  *      timing but do not touch the command/data timing.
 166  */
 167
 168 static void ali_program_modes(struct ata_port *ap, struct ata_device *adev, struct ata_timing *t, u8 ultra)
 169 {
 170         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 171         int cas = 0x58 + 4 * ap->port_no;       /* Command timing */
 172         int cbt = 0x59 + 4 * ap->port_no;       /* Command timing */
 173         int drwt = 0x5A + 4 * ap->port_no + adev->devno; /* R/W timing */
 174         int udmat = 0x56 + ap->port_no; /* UDMA timing */
 175         int shift = 4 * adev->devno;
 176         u8 udma;
 177
 178         if (t != NULL) {
 179                 t->setup = clamp_val(t->setup, 1, 8) & 7;
 180                 t->act8b = clamp_val(t->act8b, 1, 8) & 7;
 181                 t->rec8b = clamp_val(t->rec8b, 1, 16) & 15;
 182                 t->active = clamp_val(t->active, 1, 8) & 7;
 183                 t->recover = clamp_val(t->recover, 1, 16) & 15;
 184
 185                 pci_write_config_byte(pdev, cas, t->setup);
 186                 pci_write_config_byte(pdev, cbt, (t->act8b << 4) | t->rec8b);
 187                 pci_write_config_byte(pdev, drwt, (t->active << 4) | t->recover);
 188         }
 189
 190         /* Set up the UDMA enable */
 191         pci_read_config_byte(pdev, udmat, &udma);
 192         udma &= ~(0x0F << shift);
 193         udma |= ultra << shift;
 194         pci_write_config_byte(pdev, udmat, udma);
 195 }
 196
 197 /**
 198  *      ali_set_piomode -       set initial PIO mode data
 199  *      @ap: ATA interface
 200  *      @adev: ATA device
 201  *
 202  *      Program the ALi registers for PIO mode. FIXME: add timings for
 203  *      PIO5.
 204  */
 205
 206 static void ali_set_piomode(struct ata_port *ap, struct ata_device *adev)
 207 {
 208         struct ata_device *pair = ata_dev_pair(adev);
 209         struct ata_timing t;
 210         unsigned long T =  1000000000 / 33333;  /* PCI clock based */
 211
 212         ata_timing_compute(adev, adev->pio_mode, &t, T, 1);
 213         if (pair) {
 214                 struct ata_timing p;
 215                 ata_timing_compute(pair, pair->pio_mode, &p, T, 1);
 216                 ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
 217                 if (pair->dma_mode) {
 218                         ata_timing_compute(pair, pair->dma_mode, &p, T, 1);
 219                         ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
 220                 }
 221         }
 222
 223         /* PIO FIFO is only permitted on ATA disk */
 224         if (adev->class != ATA_DEV_ATA)
 225                 ali_fifo_control(ap, adev, 0x00);
 226         ali_program_modes(ap, adev, &t, 0);
 227         if (adev->class == ATA_DEV_ATA)
 228                 ali_fifo_control(ap, adev, 0x05);
 229
 230 }
 231
 232 /**
 233  *      ali_set_dmamode -       set initial DMA mode data
 234  *      @ap: ATA interface
 235  *      @adev: ATA device
 236  *
 237  *      FIXME: MWDMA timings
 238  */
 239
 240 static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 241 {
 242         static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };
 243         struct ata_device *pair = ata_dev_pair(adev);
 244         struct ata_timing t;
 245         unsigned long T =  1000000000 / 33333;  /* PCI clock based */
 246         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 247
 248
 249         if (adev->class == ATA_DEV_ATA)
 250                 ali_fifo_control(ap, adev, 0x08);
 251
 252         if (adev->dma_mode >= XFER_UDMA_0) {
 253                 ali_program_modes(ap, adev, NULL, udma_timing[adev->dma_mode - XFER_UDMA_0]);
 254                 if (adev->dma_mode >= XFER_UDMA_3) {
 255                         u8 reg4b;
 256                         pci_read_config_byte(pdev, 0x4B, &reg4b);
 257                         reg4b |= 1;
 258                         pci_write_config_byte(pdev, 0x4B, reg4b);
 259                 }
 260         } else {
 261                 ata_timing_compute(adev, adev->dma_mode, &t, T, 1);
 262                 if (pair) {
 263                         struct ata_timing p;
 264                         ata_timing_compute(pair, pair->pio_mode, &p, T, 1);
 265                         ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
 266                         if (pair->dma_mode) {
 267                                 ata_timing_compute(pair, pair->dma_mode, &p, T, 1);
 268                                 ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
 269                         }
 270                 }
 271                 ali_program_modes(ap, adev, &t, 0);
 272         }
 273 }
 274
 275 /**
 276  *      ali_warn_atapi_dma      -       Warn about ATAPI DMA disablement
 277  *      @adev: Device
 278  *
 279  *      Whine about ATAPI DMA disablement if @adev is an ATAPI device.
 280  *      Can be used as ->dev_config.
 281  */
 282
 283 static void ali_warn_atapi_dma(struct ata_device *adev)
 284 {
 285         struct ata_eh_context *ehc = &adev->link->eh_context;
 286         int print_info = ehc->i.flags & ATA_EHI_PRINTINFO;
 287
 288         if (print_info && adev->class == ATA_DEV_ATAPI && !ali_atapi_dma) {
 289                 ata_dev_printk(adev, KERN_WARNING,
 290                                "WARNING: ATAPI DMA disabled for reliablity issues.  It can be enabled\n");
 291                 ata_dev_printk(adev, KERN_WARNING,
 292                                "WARNING: via pata_ali.atapi_dma modparam or corresponding sysfs node.\n");
 293         }
 294 }
 295
 296 /**
 297  *      ali_lock_sectors        -       Keep older devices to 255 sector mode
 298  *      @adev: Device
 299  *
 300  *      Called during the bus probe for each device that is found. We use
 301  *      this call to lock the sector count of the device to 255 or less on
 302  *      older ALi controllers. If we didn't do this then large I/O's would
 303  *      require LBA48 commands which the older ALi requires are issued by
 304  *      slower PIO methods
 305  */
 306
 307 static void ali_lock_sectors(struct ata_device *adev)
 308 {
 309         adev->max_sectors = 255;
 310         ali_warn_atapi_dma(adev);
 311 }
 312
 313 /**
 314  *      ali_check_atapi_dma     -       DMA check for most ALi controllers
 315  *      @adev: Device
 316  *
 317  *      Called to decide whether commands should be sent by DMA or PIO
 318  */
 319
 320 static int ali_check_atapi_dma(struct ata_queued_cmd *qc)
 321 {
 322         if (!ali_atapi_dma) {
 323                 /* FIXME: pata_ali can't do ATAPI DMA reliably but the
 324                  * IDE alim15x3 driver can.  I tried lots of things
 325                  * but couldn't find what the actual difference was.
 326                  * If you got an idea, please write it to
 327                  * linux-ide@vger.kernel.org and cc htejun@gmail.com.
 328                  *
 329                  * Disable ATAPI DMA for now.
 330                  */
 331                 return -EOPNOTSUPP;
 332         }
 333
 334         /* If its not a media command, its not worth it */
 335         if (atapi_cmd_type(qc->cdb[0]) == ATAPI_MISC)
 336                 return -EOPNOTSUPP;
 337         return 0;
 338 }
 339
 340 static struct scsi_host_template ali_sht = {
 341         ATA_BMDMA_SHT(DRV_NAME),
 342 };
 343
 344 /*
 345  *      Port operations for PIO only ALi
 346  */
 347
 348 static struct ata_port_operations ali_early_port_ops = {
 349         .inherits       = &ata_sff_port_ops,
 350         .cable_detect   = ata_cable_40wire,
 351         .set_piomode    = ali_set_piomode,
 352 };
 353
 354 static const struct ata_port_operations ali_dma_base_ops = {
 355         .inherits       = &ata_bmdma_port_ops,
 356         .set_piomode    = ali_set_piomode,
 357         .set_dmamode    = ali_set_dmamode,
 358 };
 359
 360 /*
 361  *      Port operations for DMA capable ALi without cable
 362  *      detect
 363  */
 364 static struct ata_port_operations ali_20_port_ops = {
 365         .inherits       = &ali_dma_base_ops,
 366         .cable_detect   = ata_cable_40wire,
 367         .mode_filter    = ali_20_filter,
 368         .check_atapi_dma = ali_check_atapi_dma,
 369         .dev_config     = ali_lock_sectors,
 370 };
 371
 372 /*
 373  *      Port operations for DMA capable ALi with cable detect
 374  */
 375 static struct ata_port_operations ali_c2_port_ops = {
 376         .inherits       = &ali_dma_base_ops,
 377         .check_atapi_dma = ali_check_atapi_dma,
 378         .cable_detect   = ali_c2_cable_detect,
 379         .dev_config     = ali_lock_sectors,
 380 };
 381
 382 /*
 383  *      Port operations for DMA capable ALi with cable detect and LBA48
 384  */
 385 static struct ata_port_operations ali_c5_port_ops = {
 386         .inherits       = &ali_dma_base_ops,
 387         .check_atapi_dma = ali_check_atapi_dma,
 388         .dev_config     = ali_warn_atapi_dma,
 389         .cable_detect   = ali_c2_cable_detect,
 390 };
 391
 392
 393 /**
 394  *      ali_init_chipset        -       chip setup function
 395  *      @pdev: PCI device of ATA controller
 396  *
 397  *      Perform the setup on the device that must be done both at boot
 398  *      and at resume time.
 399  */
 400
 401 static void ali_init_chipset(struct pci_dev *pdev)
 402 {
 403         u8 tmp;
 404         struct pci_dev *north, *isa_bridge;
 405
 406         /*
 407          * The chipset revision selects the driver operations and
 408          * mode data.
 409          */
 410
 411         if (pdev->revision >= 0x20 && pdev->revision < 0xC2) {
 412                 /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */
 413                 pci_read_config_byte(pdev, 0x4B, &tmp);
 414                 /* Clear CD-ROM DMA write bit */
 415                 tmp &= 0x7F;
 416                 pci_write_config_byte(pdev, 0x4B, tmp);
 417         } else if (pdev->revision >= 0xC2) {
 418                 /* Enable cable detection logic */
 419                 pci_read_config_byte(pdev, 0x4B, &tmp);
 420                 pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
 421         }
 422         north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
 423         isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
 424
 425         if (north && north->vendor == PCI_VENDOR_ID_AL && isa_bridge) {
 426                 /* Configure the ALi bridge logic. For non ALi rely on BIOS.
 427                    Set the south bridge enable bit */
 428                 pci_read_config_byte(isa_bridge, 0x79, &tmp);
 429                 if (pdev->revision == 0xC2)
 430                         pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04);
 431                 else if (pdev->revision > 0xC2 && pdev->revision < 0xC5)
 432                         pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02);
 433         }
 434         if (pdev->revision >= 0x20) {
 435                 /*
 436                  * CD_ROM DMA on (0x53 bit 0). Enable this even if we want
 437                  * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control
 438                  * via 0x54/55.
 439                  */
 440                 pci_read_config_byte(pdev, 0x53, &tmp);
 441                 if (pdev->revision <= 0x20)
 442                         tmp &= ~0x02;
 443                 if (pdev->revision >= 0xc7)
 444                         tmp |= 0x03;
 445                 else
 446                         tmp |= 0x01;    /* CD_ROM enable for DMA */
 447                 pci_write_config_byte(pdev, 0x53, tmp);
 448         }
 449         pci_dev_put(isa_bridge);
 450         pci_dev_put(north);
 451         ata_pci_bmdma_clear_simplex(pdev);
 452 }
 453 /**
 454  *      ali_init_one            -       discovery callback
 455  *      @pdev: PCI device ID
 456  *      @id: PCI table info
 457  *
 458  *      An ALi IDE interface has been discovered. Figure out what revision
 459  *      and perform configuration work before handing it to the ATA layer
 460  */
 461
 462 static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 463 {
 464         static const struct ata_port_info info_early = {
 465                 .flags = ATA_FLAG_SLAVE_POSS,
 466                 .pio_mask = 0x1f,
 467                 .port_ops = &ali_early_port_ops
 468         };
 469         /* Revision 0x20 added DMA */
 470         static const struct ata_port_info info_20 = {
 471                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 472                 .pio_mask = 0x1f,
 473                 .mwdma_mask = 0x07,
 474                 .port_ops = &ali_20_port_ops
 475         };
 476         /* Revision 0x20 with support logic added UDMA */
 477         static const struct ata_port_info info_20_udma = {
 478                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 479                 .pio_mask = 0x1f,
 480                 .mwdma_mask = 0x07,
 481                 .udma_mask = 0x07,      /* UDMA33 */
 482                 .port_ops = &ali_20_port_ops
 483         };
 484         /* Revision 0xC2 adds UDMA66 */
 485         static const struct ata_port_info info_c2 = {
 486                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 487                 .pio_mask = 0x1f,
 488                 .mwdma_mask = 0x07,
 489                 .udma_mask = ATA_UDMA4,
 490                 .port_ops = &ali_c2_port_ops
 491         };
 492         /* Revision 0xC3 is UDMA66 for now */
 493         static const struct ata_port_info info_c3 = {
 494                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 495                 .pio_mask = 0x1f,
 496                 .mwdma_mask = 0x07,
 497                 .udma_mask = ATA_UDMA4,
 498                 .port_ops = &ali_c2_port_ops
 499         };
 500         /* Revision 0xC4 is UDMA100 */
 501         static const struct ata_port_info info_c4 = {
 502                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 503                 .pio_mask = 0x1f,
 504                 .mwdma_mask = 0x07,
 505                 .udma_mask = ATA_UDMA5,
 506                 .port_ops = &ali_c2_port_ops
 507         };
 508         /* Revision 0xC5 is UDMA133 with LBA48 DMA */
 509         static const struct ata_port_info info_c5 = {
 510                 .flags = ATA_FLAG_SLAVE_POSS,
 511                 .pio_mask = 0x1f,
 512                 .mwdma_mask = 0x07,
 513                 .udma_mask = ATA_UDMA6,
 514                 .port_ops = &ali_c5_port_ops
 515         };
 516
 517         const struct ata_port_info *ppi[] = { NULL, NULL };
 518         u8 tmp;
 519         struct pci_dev *isa_bridge;
 520         int rc;
 521
 522         rc = pcim_enable_device(pdev);
 523         if (rc)
 524                 return rc;
 525
 526         /*
 527          * The chipset revision selects the driver operations and
 528          * mode data.
 529          */
 530
 531         if (pdev->revision < 0x20) {
 532                 ppi[0] = &info_early;
 533         } else if (pdev->revision < 0xC2) {
 534                 ppi[0] = &info_20;
 535         } else if (pdev->revision == 0xC2) {
 536                 ppi[0] = &info_c2;
 537         } else if (pdev->revision == 0xC3) {
 538                 ppi[0] = &info_c3;
 539         } else if (pdev->revision == 0xC4) {
 540                 ppi[0] = &info_c4;
 541         } else
 542                 ppi[0] = &info_c5;
 543
 544         ali_init_chipset(pdev);
 545
 546         isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
 547         if (isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) {
 548                 /* Are we paired with a UDMA capable chip */
 549                 pci_read_config_byte(isa_bridge, 0x5E, &tmp);
 550                 if ((tmp & 0x1E) == 0x12)
 551                         ppi[0] = &info_20_udma;
 552         }
 553         pci_dev_put(isa_bridge);
 554
 555         return ata_pci_sff_init_one(pdev, ppi, &ali_sht, NULL);
 556 }
 557
 558 #ifdef CONFIG_PM
 559 static int ali_reinit_one(struct pci_dev *pdev)
 560 {
 561         struct ata_host *host = dev_get_drvdata(&pdev->dev);
 562         int rc;
 563
 564         rc = ata_pci_device_do_resume(pdev);
 565         if (rc)
 566                 return rc;
 567         ali_init_chipset(pdev);
 568         ata_host_resume(host);
 569         return 0;
 570 }
 571 #endif
 572
 573 static const struct pci_device_id ali[] = {
 574         { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), },
 575         { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), },
 576
 577         { },
 578 };
 579
 580 static struct pci_driver ali_pci_driver = {
 581         .name           = DRV_NAME,
 582         .id_table       = ali,
 583         .probe          = ali_init_one,
 584         .remove         = ata_pci_remove_one,
 585 #ifdef CONFIG_PM
 586         .suspend        = ata_pci_device_suspend,
 587         .resume         = ali_reinit_one,
 588 #endif
 589 };
 590
 591 static int __init ali_init(void)
 592 {
 593         return pci_register_driver(&ali_pci_driver);
 594 }
 595
 596
 597 static void __exit ali_exit(void)
 598 {
 599         pci_unregister_driver(&ali_pci_driver);
 600 }
 601
 602
 603 MODULE_AUTHOR("Alan Cox");
 604 MODULE_DESCRIPTION("low-level driver for ALi PATA");
 605 MODULE_LICENSE("GPL");
 606 MODULE_DEVICE_TABLE(pci, ali);
 607 MODULE_VERSION(DRV_VERSION);
 608
 609 module_init(ali_init);
 610 module_exit(ali_exit);