drivers/ata/pata_ali.c

   1 /*
   2  * pata_ali.c   - ALI 15x3 PATA for new ATA layer
   3  *                        (C) 2005 Red Hat Inc
   4  *                        Alan Cox <alan@redhat.com>
   5  *
   6  * based in part upon
   7  * linux/drivers/ide/pci/alim15x3.c             Version 0.17    2003/01/02
   8  *
   9  *  Copyright (C) 1998-2000 Michel Aubry, Maintainer
  10  *  Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
  11  *  Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
  12  *
  13  *  Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
  14  *  May be copied or modified under the terms of the GNU General Public License
  15  *  Copyright (C) 2002 Alan Cox <alan@redhat.com>
  16  *  ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw>
  17  *
  18  *  Documentation
  19  *      Chipset documentation available under NDA only
  20  *
  21  *  TODO/CHECK
  22  *      Cannot have ATAPI on both master & slave for rev < c2 (???) but
  23  *      otherwise should do atapi DMA.
  24  */
  25
  26 #include <linux/kernel.h>
  27 #include <linux/module.h>
  28 #include <linux/pci.h>
  29 #include <linux/init.h>
  30 #include <linux/blkdev.h>
  31 #include <linux/delay.h>
  32 #include <scsi/scsi_host.h>
  33 #include <linux/libata.h>
  34 #include <linux/dmi.h>
  35
  36 #define DRV_NAME "pata_ali"
  37 #define DRV_VERSION "0.7.5"
  38
  39 static int ali_atapi_dma = 0;
  40 module_param_named(atapi_dma, ali_atapi_dma, int, 0644);
  41 MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)");
  42
  43 /*
  44  *      Cable special cases
  45  */
  46
  47 static const struct dmi_system_id cable_dmi_table[] = {
  48         {
  49                 .ident = "HP Pavilion N5430",
  50                 .matches = {
  51                         DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
  52                         DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
  53                 },
  54         },
  55         {
  56                 .ident = "Toshiba Satelite S1800-814",
  57                 .matches = {
  58                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
  59                         DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"),
  60                 },
  61         },
  62         { }
  63 };
  64
  65 static int ali_cable_override(struct pci_dev *pdev)
  66 {
  67         /* Fujitsu P2000 */
  68         if (pdev->subsystem_vendor == 0x10CF && pdev->subsystem_device == 0x10AF)
  69                 return 1;
  70         /* Mitac 8317 (Winbook-A) and relatives */
  71         if (pdev->subsystem_vendor == 0x1071 && pdev->subsystem_device == 0x8317)
  72                 return 1;
  73         /* Systems by DMI */
  74         if (dmi_check_system(cable_dmi_table))
  75                 return 1;
  76         return 0;
  77 }
  78
  79 /**
  80  *      ali_c2_cable_detect     -       cable detection
  81  *      @ap: ATA port
  82  *
  83  *      Perform cable detection for C2 and later revisions
  84  */
  85
  86 static int ali_c2_cable_detect(struct ata_port *ap)
  87 {
  88         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  89         u8 ata66;
  90
  91         /* Certain laptops use short but suitable cables and don't
  92            implement the detect logic */
  93
  94         if (ali_cable_override(pdev))
  95                 return ATA_CBL_PATA40_SHORT;
  96
  97         /* Host view cable detect 0x4A bit 0 primary bit 1 secondary
  98            Bit set for 40 pin */
  99         pci_read_config_byte(pdev, 0x4A, &ata66);
 100         if (ata66 & (1 << ap->port_no))
 101                 return ATA_CBL_PATA40;
 102         else
 103                 return ATA_CBL_PATA80;
 104 }
 105
 106 /**
 107  *      ali_20_filter           -       filter for earlier ALI DMA
 108  *      @ap: ALi ATA port
 109  *      @adev: attached device
 110  *
 111  *      Ensure that we do not do DMA on CD devices. We may be able to
 112  *      fix that later on. Also ensure we do not do UDMA on WDC drives
 113  */
 114
 115 static unsigned long ali_20_filter(struct ata_device *adev, unsigned long mask)
 116 {
 117         char model_num[ATA_ID_PROD_LEN + 1];
 118         /* No DMA on anything but a disk for now */
 119         if (adev->class != ATA_DEV_ATA)
 120                 mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
 121         ata_id_c_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num));
 122         if (strstr(model_num, "WDC"))
 123                 return mask &= ~ATA_MASK_UDMA;
 124         return ata_bmdma_mode_filter(adev, mask);
 125 }
 126
 127 /**
 128  *      ali_fifo_control        -       FIFO manager
 129  *      @ap: ALi channel to control
 130  *      @adev: device for FIFO control
 131  *      @on: 0 for off 1 for on
 132  *
 133  *      Enable or disable the FIFO on a given device. Because of the way the
 134  *      ALi FIFO works it provides a boost on ATA disk but can be confused by
 135  *      ATAPI and we must therefore manage it.
 136  */
 137
 138 static void ali_fifo_control(struct ata_port *ap, struct ata_device *adev, int on)
 139 {
 140         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 141         int pio_fifo = 0x54 + ap->port_no;
 142         u8 fifo;
 143         int shift = 4 * adev->devno;
 144
 145         /* ATA - FIFO on set nibble to 0x05, ATAPI - FIFO off, set nibble to
 146            0x00. Not all the docs agree but the behaviour we now use is the
 147            one stated in the BIOS Programming Guide */
 148
 149         pci_read_config_byte(pdev, pio_fifo, &fifo);
 150         fifo &= ~(0x0F << shift);
 151         if (on)
 152                 fifo |= (on << shift);
 153         pci_write_config_byte(pdev, pio_fifo, fifo);
 154 }
 155
 156 /**
 157  *      ali_program_modes       -       load mode registers
 158  *      @ap: ALi channel to load
 159  *      @adev: Device the timing is for
 160  *      @cmd: Command timing
 161  *      @data: Data timing
 162  *      @ultra: UDMA timing or zero for off
 163  *
 164  *      Loads the timing registers for cmd/data and disable UDMA if
 165  *      ultra is zero. If ultra is set then load and enable the UDMA
 166  *      timing but do not touch the command/data timing.
 167  */
 168
 169 static void ali_program_modes(struct ata_port *ap, struct ata_device *adev, struct ata_timing *t, u8 ultra)
 170 {
 171         struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 172         int cas = 0x58 + 4 * ap->port_no;       /* Command timing */
 173         int cbt = 0x59 + 4 * ap->port_no;       /* Command timing */
 174         int drwt = 0x5A + 4 * ap->port_no + adev->devno; /* R/W timing */
 175         int udmat = 0x56 + ap->port_no; /* UDMA timing */
 176         int shift = 4 * adev->devno;
 177         u8 udma;
 178
 179         if (t != NULL) {
 180                 t->setup = clamp_val(t->setup, 1, 8) & 7;
 181                 t->act8b = clamp_val(t->act8b, 1, 8) & 7;
 182                 t->rec8b = clamp_val(t->rec8b, 1, 16) & 15;
 183                 t->active = clamp_val(t->active, 1, 8) & 7;
 184                 t->recover = clamp_val(t->recover, 1, 16) & 15;
 185
 186                 pci_write_config_byte(pdev, cas, t->setup);
 187                 pci_write_config_byte(pdev, cbt, (t->act8b << 4) | t->rec8b);
 188                 pci_write_config_byte(pdev, drwt, (t->active << 4) | t->recover);
 189         }
 190
 191         /* Set up the UDMA enable */
 192         pci_read_config_byte(pdev, udmat, &udma);
 193         udma &= ~(0x0F << shift);
 194         udma |= ultra << shift;
 195         pci_write_config_byte(pdev, udmat, udma);
 196 }
 197
 198 /**
 199  *      ali_set_piomode -       set initial PIO mode data
 200  *      @ap: ATA interface
 201  *      @adev: ATA device
 202  *
 203  *      Program the ALi registers for PIO mode. FIXME: add timings for
 204  *      PIO5.
 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 (pair->dma_mode) {
 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  *      FIXME: MWDMA timings
 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, &reg4b);
 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 (pair->dma_mode) {
 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_printk(adev, KERN_WARNING,
 291                                "WARNING: ATAPI DMA disabled for reliablity issues.  It can be enabled\n");
 292                 ata_dev_printk(adev, KERN_WARNING,
 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  *      @adev: Device
 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 struct scsi_host_template ali_sht = {
 342         ATA_BMDMA_SHT(DRV_NAME),
 343 };
 344
 345 /*
 346  *      Port operations for PIO only ALi
 347  */
 348
 349 static struct ata_port_operations ali_early_port_ops = {
 350         .inherits       = &ata_sff_port_ops,
 351         .cable_detect   = ata_cable_40wire,
 352         .set_piomode    = ali_set_piomode,
 353 };
 354
 355 static const struct ata_port_operations ali_dma_base_ops = {
 356         .inherits       = &ata_bmdma_port_ops,
 357         .set_piomode    = ali_set_piomode,
 358         .set_dmamode    = ali_set_dmamode,
 359 };
 360
 361 /*
 362  *      Port operations for DMA capable ALi without cable
 363  *      detect
 364  */
 365 static struct ata_port_operations ali_20_port_ops = {
 366         .inherits       = &ali_dma_base_ops,
 367         .cable_detect   = ata_cable_40wire,
 368         .mode_filter    = ali_20_filter,
 369         .check_atapi_dma = ali_check_atapi_dma,
 370         .dev_config     = ali_lock_sectors,
 371 };
 372
 373 /*
 374  *      Port operations for DMA capable ALi with cable detect
 375  */
 376 static struct ata_port_operations ali_c2_port_ops = {
 377         .inherits       = &ali_dma_base_ops,
 378         .check_atapi_dma = ali_check_atapi_dma,
 379         .cable_detect   = ali_c2_cable_detect,
 380         .dev_config     = ali_lock_sectors,
 381 };
 382
 383 /*
 384  *      Port operations for DMA capable ALi with cable detect and LBA48
 385  */
 386 static struct ata_port_operations ali_c5_port_ops = {
 387         .inherits       = &ali_dma_base_ops,
 388         .check_atapi_dma = ali_check_atapi_dma,
 389         .dev_config     = ali_warn_atapi_dma,
 390         .cable_detect   = ali_c2_cable_detect,
 391 };
 392
 393
 394 /**
 395  *      ali_init_chipset        -       chip setup function
 396  *      @pdev: PCI device of ATA controller
 397  *
 398  *      Perform the setup on the device that must be done both at boot
 399  *      and at resume time.
 400  */
 401
 402 static void ali_init_chipset(struct pci_dev *pdev)
 403 {
 404         u8 tmp;
 405         struct pci_dev *north, *isa_bridge;
 406
 407         /*
 408          * The chipset revision selects the driver operations and
 409          * mode data.
 410          */
 411
 412         if (pdev->revision >= 0x20 && pdev->revision < 0xC2) {
 413                 /* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */
 414                 pci_read_config_byte(pdev, 0x4B, &tmp);
 415                 /* Clear CD-ROM DMA write bit */
 416                 tmp &= 0x7F;
 417                 pci_write_config_byte(pdev, 0x4B, tmp);
 418         } else if (pdev->revision >= 0xC2) {
 419                 /* Enable cable detection logic */
 420                 pci_read_config_byte(pdev, 0x4B, &tmp);
 421                 pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
 422         }
 423         north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
 424         isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
 425
 426         if (north && north->vendor == PCI_VENDOR_ID_AL && isa_bridge) {
 427                 /* Configure the ALi bridge logic. For non ALi rely on BIOS.
 428                    Set the south bridge enable bit */
 429                 pci_read_config_byte(isa_bridge, 0x79, &tmp);
 430                 if (pdev->revision == 0xC2)
 431                         pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04);
 432                 else if (pdev->revision > 0xC2 && pdev->revision < 0xC5)
 433                         pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02);
 434         }
 435         if (pdev->revision >= 0x20) {
 436                 /*
 437                  * CD_ROM DMA on (0x53 bit 0). Enable this even if we want
 438                  * to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control
 439                  * via 0x54/55.
 440                  */
 441                 pci_read_config_byte(pdev, 0x53, &tmp);
 442                 if (pdev->revision <= 0x20)
 443                         tmp &= ~0x02;
 444                 if (pdev->revision >= 0xc7)
 445                         tmp |= 0x03;
 446                 else
 447                         tmp |= 0x01;    /* CD_ROM enable for DMA */
 448                 pci_write_config_byte(pdev, 0x53, tmp);
 449         }
 450         pci_dev_put(isa_bridge);
 451         pci_dev_put(north);
 452         ata_pci_bmdma_clear_simplex(pdev);
 453 }
 454 /**
 455  *      ali_init_one            -       discovery callback
 456  *      @pdev: PCI device ID
 457  *      @id: PCI table info
 458  *
 459  *      An ALi IDE interface has been discovered. Figure out what revision
 460  *      and perform configuration work before handing it to the ATA layer
 461  */
 462
 463 static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 464 {
 465         static const struct ata_port_info info_early = {
 466                 .flags = ATA_FLAG_SLAVE_POSS,
 467                 .pio_mask = 0x1f,
 468                 .port_ops = &ali_early_port_ops
 469         };
 470         /* Revision 0x20 added DMA */
 471         static const struct ata_port_info info_20 = {
 472                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 473                 .pio_mask = 0x1f,
 474                 .mwdma_mask = 0x07,
 475                 .port_ops = &ali_20_port_ops
 476         };
 477         /* Revision 0x20 with support logic added UDMA */
 478         static const struct ata_port_info info_20_udma = {
 479                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 480                 .pio_mask = 0x1f,
 481                 .mwdma_mask = 0x07,
 482                 .udma_mask = 0x07,      /* UDMA33 */
 483                 .port_ops = &ali_20_port_ops
 484         };
 485         /* Revision 0xC2 adds UDMA66 */
 486         static const struct ata_port_info info_c2 = {
 487                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 488                 .pio_mask = 0x1f,
 489                 .mwdma_mask = 0x07,
 490                 .udma_mask = ATA_UDMA4,
 491                 .port_ops = &ali_c2_port_ops
 492         };
 493         /* Revision 0xC3 is UDMA66 for now */
 494         static const struct ata_port_info info_c3 = {
 495                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 496                 .pio_mask = 0x1f,
 497                 .mwdma_mask = 0x07,
 498                 .udma_mask = ATA_UDMA4,
 499                 .port_ops = &ali_c2_port_ops
 500         };
 501         /* Revision 0xC4 is UDMA100 */
 502         static const struct ata_port_info info_c4 = {
 503                 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
 504                 .pio_mask = 0x1f,
 505                 .mwdma_mask = 0x07,
 506                 .udma_mask = ATA_UDMA5,
 507                 .port_ops = &ali_c2_port_ops
 508         };
 509         /* Revision 0xC5 is UDMA133 with LBA48 DMA */
 510         static const struct ata_port_info info_c5 = {
 511                 .flags = ATA_FLAG_SLAVE_POSS,
 512                 .pio_mask = 0x1f,
 513                 .mwdma_mask = 0x07,
 514                 .udma_mask = ATA_UDMA6,
 515                 .port_ops = &ali_c5_port_ops
 516         };
 517
 518         const struct ata_port_info *ppi[] = { NULL, NULL };
 519         u8 tmp;
 520         struct pci_dev *isa_bridge;
 521         int rc;
 522
 523         rc = pcim_enable_device(pdev);
 524         if (rc)
 525                 return rc;
 526
 527         /*
 528          * The chipset revision selects the driver operations and
 529          * mode data.
 530          */
 531
 532         if (pdev->revision < 0x20) {
 533                 ppi[0] = &info_early;
 534         } else if (pdev->revision < 0xC2) {
 535                 ppi[0] = &info_20;
 536         } else if (pdev->revision == 0xC2) {
 537                 ppi[0] = &info_c2;
 538         } else if (pdev->revision == 0xC3) {
 539                 ppi[0] = &info_c3;
 540         } else if (pdev->revision == 0xC4) {
 541                 ppi[0] = &info_c4;
 542         } else
 543                 ppi[0] = &info_c5;
 544
 545         ali_init_chipset(pdev);
 546
 547         isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
 548         if (isa_bridge && pdev->revision >= 0x20 && pdev->revision < 0xC2) {
 549                 /* Are we paired with a UDMA capable chip */
 550                 pci_read_config_byte(isa_bridge, 0x5E, &tmp);
 551                 if ((tmp & 0x1E) == 0x12)
 552                         ppi[0] = &info_20_udma;
 553         }
 554         pci_dev_put(isa_bridge);
 555
 556         return ata_pci_sff_init_one(pdev, ppi, &ali_sht, NULL);
 557 }
 558
 559 #ifdef CONFIG_PM
 560 static int ali_reinit_one(struct pci_dev *pdev)
 561 {
 562         struct ata_host *host = dev_get_drvdata(&pdev->dev);
 563         int rc;
 564
 565         rc = ata_pci_device_do_resume(pdev);
 566         if (rc)
 567                 return rc;
 568         ali_init_chipset(pdev);
 569         ata_host_resume(host);
 570         return 0;
 571 }
 572 #endif
 573
 574 static const struct pci_device_id ali[] = {
 575         { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), },
 576         { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), },
 577
 578         { },
 579 };
 580
 581 static struct pci_driver ali_pci_driver = {
 582         .name           = DRV_NAME,
 583         .id_table       = ali,
 584         .probe          = ali_init_one,
 585         .remove         = ata_pci_remove_one,
 586 #ifdef CONFIG_PM
 587         .suspend        = ata_pci_device_suspend,
 588         .resume         = ali_reinit_one,
 589 #endif
 590 };
 591
 592 static int __init ali_init(void)
 593 {
 594         return pci_register_driver(&ali_pci_driver);
 595 }
 596
 597
 598 static void __exit ali_exit(void)
 599 {
 600         pci_unregister_driver(&ali_pci_driver);
 601 }
 602
 603
 604 MODULE_AUTHOR("Alan Cox");
 605 MODULE_DESCRIPTION("low-level driver for ALi PATA");
 606 MODULE_LICENSE("GPL");
 607 MODULE_DEVICE_TABLE(pci, ali);
 608 MODULE_VERSION(DRV_VERSION);
 609
 610 module_init(ali_init);
 611 module_exit(ali_exit);