err.no Git - linux-2.6/blob - drivers/mmc/sdhci.c

   1 /*
   2  *  linux/drivers/mmc/sdhci.c - Secure Digital Host Controller Interface driver
   3  *
   4  *  Copyright (C) 2005-2006 Pierre Ossman, All Rights Reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11  /*
  12   * Note that PIO transfer is rather crappy atm. The buffer full/empty
  13   * interrupts aren't reliable so we currently transfer the entire buffer
  14   * directly. Patches to solve the problem are welcome.
  15   */
  16
  17 #include <linux/delay.h>
  18 #include <linux/highmem.h>
  19 #include <linux/pci.h>
  20 #include <linux/dma-mapping.h>
  21
  22 #include <linux/mmc/host.h>
  23 #include <linux/mmc/protocol.h>
  24
  25 #include <asm/scatterlist.h>
  26
  27 #include "sdhci.h"
  28
  29 #define DRIVER_NAME "sdhci"
  30 #define DRIVER_VERSION "0.11"
  31
  32 #define BUGMAIL "<sdhci-devel@list.drzeus.cx>"
  33
  34 #define DBG(f, x...) \
  35         pr_debug(DRIVER_NAME " [%s()]: " f, __func__,## x)
  36
  37 static const struct pci_device_id pci_ids[] __devinitdata = {
  38         /* handle any SD host controller */
  39         {PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)},
  40         { /* end: all zeroes */ },
  41 };
  42
  43 MODULE_DEVICE_TABLE(pci, pci_ids);
  44
  45 static void sdhci_prepare_data(struct sdhci_host *, struct mmc_data *);
  46 static void sdhci_finish_data(struct sdhci_host *);
  47
  48 static void sdhci_send_command(struct sdhci_host *, struct mmc_command *);
  49 static void sdhci_finish_command(struct sdhci_host *);
  50
  51 static void sdhci_dumpregs(struct sdhci_host *host)
  52 {
  53         printk(KERN_DEBUG DRIVER_NAME ": ============== REGISTER DUMP ==============\n");
  54
  55         printk(KERN_DEBUG DRIVER_NAME ": Sys addr: 0x%08x | Version:  0x%08x\n",
  56                 readl(host->ioaddr + SDHCI_DMA_ADDRESS),
  57                 readw(host->ioaddr + SDHCI_HOST_VERSION));
  58         printk(KERN_DEBUG DRIVER_NAME ": Blk size: 0x%08x | Blk cnt:  0x%08x\n",
  59                 readw(host->ioaddr + SDHCI_BLOCK_SIZE),
  60                 readw(host->ioaddr + SDHCI_BLOCK_COUNT));
  61         printk(KERN_DEBUG DRIVER_NAME ": Argument: 0x%08x | Trn mode: 0x%08x\n",
  62                 readl(host->ioaddr + SDHCI_ARGUMENT),
  63                 readw(host->ioaddr + SDHCI_TRANSFER_MODE));
  64         printk(KERN_DEBUG DRIVER_NAME ": Present:  0x%08x | Host ctl: 0x%08x\n",
  65                 readl(host->ioaddr + SDHCI_PRESENT_STATE),
  66                 readb(host->ioaddr + SDHCI_HOST_CONTROL));
  67         printk(KERN_DEBUG DRIVER_NAME ": Power:    0x%08x | Blk gap:  0x%08x\n",
  68                 readb(host->ioaddr + SDHCI_POWER_CONTROL),
  69                 readb(host->ioaddr + SDHCI_BLOCK_GAP_CONTROL));
  70         printk(KERN_DEBUG DRIVER_NAME ": Wake-up:  0x%08x | Clock:    0x%08x\n",
  71                 readb(host->ioaddr + SDHCI_WALK_UP_CONTROL),
  72                 readw(host->ioaddr + SDHCI_CLOCK_CONTROL));
  73         printk(KERN_DEBUG DRIVER_NAME ": Timeout:  0x%08x | Int stat: 0x%08x\n",
  74                 readb(host->ioaddr + SDHCI_TIMEOUT_CONTROL),
  75                 readl(host->ioaddr + SDHCI_INT_STATUS));
  76         printk(KERN_DEBUG DRIVER_NAME ": Int enab: 0x%08x | Sig enab: 0x%08x\n",
  77                 readl(host->ioaddr + SDHCI_INT_ENABLE),
  78                 readl(host->ioaddr + SDHCI_SIGNAL_ENABLE));
  79         printk(KERN_DEBUG DRIVER_NAME ": AC12 err: 0x%08x | Slot int: 0x%08x\n",
  80                 readw(host->ioaddr + SDHCI_ACMD12_ERR),
  81                 readw(host->ioaddr + SDHCI_SLOT_INT_STATUS));
  82         printk(KERN_DEBUG DRIVER_NAME ": Caps:     0x%08x | Max curr: 0x%08x\n",
  83                 readl(host->ioaddr + SDHCI_CAPABILITIES),
  84                 readl(host->ioaddr + SDHCI_MAX_CURRENT));
  85
  86         printk(KERN_DEBUG DRIVER_NAME ": ===========================================\n");
  87 }
  88
  89 /*****************************************************************************\
  90  *                                                                           *
  91  * Low level functions                                                       *
  92  *                                                                           *
  93 \*****************************************************************************/
  94
  95 static void sdhci_reset(struct sdhci_host *host, u8 mask)
  96 {
  97         writeb(mask, host->ioaddr + SDHCI_SOFTWARE_RESET);
  98
  99         if (mask & SDHCI_RESET_ALL) {
 100                 host->clock = 0;
 101
 102                 mdelay(50);
 103         }
 104 }
 105
 106 static void sdhci_init(struct sdhci_host *host)
 107 {
 108         u32 intmask;
 109
 110         sdhci_reset(host, SDHCI_RESET_ALL);
 111
 112         intmask = ~(SDHCI_INT_CARD_INT | SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL);
 113
 114         writel(intmask, host->ioaddr + SDHCI_INT_ENABLE);
 115         writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE);
 116
 117         /* This is unknown magic. */
 118         writeb(0xE, host->ioaddr + SDHCI_TIMEOUT_CONTROL);
 119 }
 120
 121 static void sdhci_activate_led(struct sdhci_host *host)
 122 {
 123         u8 ctrl;
 124
 125         ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);
 126         ctrl |= SDHCI_CTRL_LED;
 127         writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
 128 }
 129
 130 static void sdhci_deactivate_led(struct sdhci_host *host)
 131 {
 132         u8 ctrl;
 133
 134         ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);
 135         ctrl &= ~SDHCI_CTRL_LED;
 136         writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
 137 }
 138
 139 /*****************************************************************************\
 140  *                                                                           *
 141  * Core functions                                                            *
 142  *                                                                           *
 143 \*****************************************************************************/
 144
 145 static inline char* sdhci_kmap_sg(struct sdhci_host* host)
 146 {
 147         host->mapped_sg = kmap_atomic(host->cur_sg->page, KM_BIO_SRC_IRQ);
 148         return host->mapped_sg + host->cur_sg->offset;
 149 }
 150
 151 static inline void sdhci_kunmap_sg(struct sdhci_host* host)
 152 {
 153         kunmap_atomic(host->mapped_sg, KM_BIO_SRC_IRQ);
 154 }
 155
 156 static inline int sdhci_next_sg(struct sdhci_host* host)
 157 {
 158         /*
 159          * Skip to next SG entry.
 160          */
 161         host->cur_sg++;
 162         host->num_sg--;
 163
 164         /*
 165          * Any entries left?
 166          */
 167         if (host->num_sg > 0) {
 168                 host->offset = 0;
 169                 host->remain = host->cur_sg->length;
 170         }
 171
 172         return host->num_sg;
 173 }
 174
 175 static void sdhci_transfer_pio(struct sdhci_host *host)
 176 {
 177         char *buffer;
 178         u32 mask;
 179         int bytes, size;
 180         unsigned long max_jiffies;
 181
 182         BUG_ON(!host->data);
 183
 184         if (host->num_sg == 0)
 185                 return;
 186
 187         bytes = 0;
 188         if (host->data->flags & MMC_DATA_READ)
 189                 mask = SDHCI_DATA_AVAILABLE;
 190         else
 191                 mask = SDHCI_SPACE_AVAILABLE;
 192
 193         buffer = sdhci_kmap_sg(host) + host->offset;
 194
 195         /* Transfer shouldn't take more than 5 s */
 196         max_jiffies = jiffies + HZ * 5;
 197
 198         while (host->size > 0) {
 199                 if (time_after(jiffies, max_jiffies)) {
 200                         printk(KERN_ERR "%s: PIO transfer stalled. "
 201                                 "Please report this to "
 202                                 BUGMAIL ".\n", mmc_hostname(host->mmc));
 203                         sdhci_dumpregs(host);
 204
 205                         sdhci_kunmap_sg(host);
 206
 207                         host->data->error = MMC_ERR_FAILED;
 208                         sdhci_finish_data(host);
 209                         return;
 210                 }
 211
 212                 if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & mask))
 213                         continue;
 214
 215                 size = min(host->size, host->remain);
 216
 217                 if (size >= 4) {
 218                         if (host->data->flags & MMC_DATA_READ)
 219                                 *(u32*)buffer = readl(host->ioaddr + SDHCI_BUFFER);
 220                         else
 221                                 writel(*(u32*)buffer, host->ioaddr + SDHCI_BUFFER);
 222                         size = 4;
 223                 } else if (size >= 2) {
 224                         if (host->data->flags & MMC_DATA_READ)
 225                                 *(u16*)buffer = readw(host->ioaddr + SDHCI_BUFFER);
 226                         else
 227                                 writew(*(u16*)buffer, host->ioaddr + SDHCI_BUFFER);
 228                         size = 2;
 229                 } else {
 230                         if (host->data->flags & MMC_DATA_READ)
 231                                 *(u8*)buffer = readb(host->ioaddr + SDHCI_BUFFER);
 232                         else
 233                                 writeb(*(u8*)buffer, host->ioaddr + SDHCI_BUFFER);
 234                         size = 1;
 235                 }
 236
 237                 buffer += size;
 238                 host->offset += size;
 239                 host->remain -= size;
 240
 241                 bytes += size;
 242                 host->size -= size;
 243
 244                 if (host->remain == 0) {
 245                         sdhci_kunmap_sg(host);
 246                         if (sdhci_next_sg(host) == 0) {
 247                                 DBG("PIO transfer: %d bytes\n", bytes);
 248                                 return;
 249                         }
 250                         buffer = sdhci_kmap_sg(host);
 251                 }
 252         }
 253
 254         sdhci_kunmap_sg(host);
 255
 256         DBG("PIO transfer: %d bytes\n", bytes);
 257 }
 258
 259 static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
 260 {
 261         u16 mode;
 262
 263         WARN_ON(host->data);
 264
 265         if (data == NULL) {
 266                 writew(0, host->ioaddr + SDHCI_TRANSFER_MODE);
 267                 return;
 268         }
 269
 270         DBG("blksz %04x blks %04x flags %08x\n",
 271                 data->blksz, data->blocks, data->flags);
 272         DBG("tsac %d ms nsac %d clk\n",
 273                 data->timeout_ns / 1000000, data->timeout_clks);
 274
 275         mode = SDHCI_TRNS_BLK_CNT_EN;
 276         if (data->blocks > 1)
 277                 mode |= SDHCI_TRNS_MULTI;
 278         if (data->flags & MMC_DATA_READ)
 279                 mode |= SDHCI_TRNS_READ;
 280         if (host->flags & SDHCI_USE_DMA)
 281                 mode |= SDHCI_TRNS_DMA;
 282
 283         writew(mode, host->ioaddr + SDHCI_TRANSFER_MODE);
 284
 285         writew(data->blksz, host->ioaddr + SDHCI_BLOCK_SIZE);
 286         writew(data->blocks, host->ioaddr + SDHCI_BLOCK_COUNT);
 287
 288         if (host->flags & SDHCI_USE_DMA) {
 289                 int count;
 290
 291                 count = pci_map_sg(host->chip->pdev, data->sg, data->sg_len,
 292                         (data->flags & MMC_DATA_READ)?PCI_DMA_FROMDEVICE:PCI_DMA_TODEVICE);
 293                 BUG_ON(count != 1);
 294
 295                 writel(sg_dma_address(data->sg), host->ioaddr + SDHCI_DMA_ADDRESS);
 296         } else {
 297                 host->size = data->blksz * data->blocks;
 298
 299                 host->cur_sg = data->sg;
 300                 host->num_sg = data->sg_len;
 301
 302                 host->offset = 0;
 303                 host->remain = host->cur_sg->length;
 304         }
 305 }
 306
 307 static void sdhci_finish_data(struct sdhci_host *host)
 308 {
 309         struct mmc_data *data;
 310         u32 intmask;
 311         u16 blocks;
 312
 313         BUG_ON(!host->data);
 314
 315         data = host->data;
 316         host->data = NULL;
 317
 318         if (host->flags & SDHCI_USE_DMA) {
 319                 pci_unmap_sg(host->chip->pdev, data->sg, data->sg_len,
 320                         (data->flags & MMC_DATA_READ)?PCI_DMA_FROMDEVICE:PCI_DMA_TODEVICE);
 321         } else {
 322                 intmask = readl(host->ioaddr + SDHCI_SIGNAL_ENABLE);
 323                 intmask &= ~(SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL);
 324                 writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE);
 325
 326                 intmask = readl(host->ioaddr + SDHCI_INT_ENABLE);
 327                 intmask &= ~(SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL);
 328                 writel(intmask, host->ioaddr + SDHCI_INT_ENABLE);
 329         }
 330
 331         /*
 332          * Controller doesn't count down when in single block mode.
 333          */
 334         if ((data->blocks == 1) && (data->error == MMC_ERR_NONE))
 335                 blocks = 0;
 336         else
 337                 blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);
 338         data->bytes_xfered = data->blksz * (data->blocks - blocks);
 339
 340         if ((data->error == MMC_ERR_NONE) && blocks) {
 341                 printk(KERN_ERR "%s: Controller signalled completion even "
 342                         "though there were blocks left. Please report this "
 343                         "to " BUGMAIL ".\n", mmc_hostname(host->mmc));
 344                 data->error = MMC_ERR_FAILED;
 345         }
 346
 347         if (host->size != 0) {
 348                 printk(KERN_ERR "%s: %d bytes were left untransferred. "
 349                         "Please report this to " BUGMAIL ".\n",
 350                         mmc_hostname(host->mmc), host->size);
 351                 data->error = MMC_ERR_FAILED;
 352         }
 353
 354         DBG("Ending data transfer (%d bytes)\n", data->bytes_xfered);
 355
 356         if (data->stop) {
 357                 /*
 358                  * The controller needs a reset of internal state machines
 359                  * upon error conditions.
 360                  */
 361                 if (data->error != MMC_ERR_NONE) {
 362                         sdhci_reset(host, SDHCI_RESET_CMD);
 363                         sdhci_reset(host, SDHCI_RESET_DATA);
 364                 }
 365
 366                 sdhci_send_command(host, data->stop);
 367         } else
 368                 tasklet_schedule(&host->finish_tasklet);
 369 }
 370
 371 static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
 372 {
 373         int flags;
 374         unsigned long timeout;
 375
 376         WARN_ON(host->cmd);
 377
 378         DBG("Sending cmd (%x)\n", cmd->opcode);
 379
 380         /* Wait max 10 ms */
 381         timeout = 10;
 382         while (readl(host->ioaddr + SDHCI_PRESENT_STATE) &
 383                 (SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT)) {
 384                 if (timeout == 0) {
 385                         printk(KERN_ERR "%s: Controller never released "
 386                                 "inhibit bits. Please report this to "
 387                                 BUGMAIL ".\n", mmc_hostname(host->mmc));
 388                         sdhci_dumpregs(host);
 389                         cmd->error = MMC_ERR_FAILED;
 390                         tasklet_schedule(&host->finish_tasklet);
 391                         return;
 392                 }
 393                 timeout--;
 394                 mdelay(1);
 395         }
 396
 397         mod_timer(&host->timer, jiffies + 10 * HZ);
 398
 399         host->cmd = cmd;
 400
 401         sdhci_prepare_data(host, cmd->data);
 402
 403         writel(cmd->arg, host->ioaddr + SDHCI_ARGUMENT);
 404
 405         if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
 406                 printk(KERN_ERR "%s: Unsupported response type! "
 407                         "Please report this to " BUGMAIL ".\n",
 408                         mmc_hostname(host->mmc));
 409                 cmd->error = MMC_ERR_INVALID;
 410                 tasklet_schedule(&host->finish_tasklet);
 411                 return;
 412         }
 413
 414         if (!(cmd->flags & MMC_RSP_PRESENT))
 415                 flags = SDHCI_CMD_RESP_NONE;
 416         else if (cmd->flags & MMC_RSP_136)
 417                 flags = SDHCI_CMD_RESP_LONG;
 418         else if (cmd->flags & MMC_RSP_BUSY)
 419                 flags = SDHCI_CMD_RESP_SHORT_BUSY;
 420         else
 421                 flags = SDHCI_CMD_RESP_SHORT;
 422
 423         if (cmd->flags & MMC_RSP_CRC)
 424                 flags |= SDHCI_CMD_CRC;
 425         if (cmd->flags & MMC_RSP_OPCODE)
 426                 flags |= SDHCI_CMD_INDEX;
 427         if (cmd->data)
 428                 flags |= SDHCI_CMD_DATA;
 429
 430         writel(SDHCI_MAKE_CMD(cmd->opcode, flags),
 431                 host->ioaddr + SDHCI_COMMAND);
 432 }
 433
 434 static void sdhci_finish_command(struct sdhci_host *host)
 435 {
 436         int i;
 437
 438         BUG_ON(host->cmd == NULL);
 439
 440         if (host->cmd->flags & MMC_RSP_PRESENT) {
 441                 if (host->cmd->flags & MMC_RSP_136) {
 442                         /* CRC is stripped so we need to do some shifting. */
 443                         for (i = 0;i < 4;i++) {
 444                                 host->cmd->resp[i] = readl(host->ioaddr +
 445                                         SDHCI_RESPONSE + (3-i)*4) << 8;
 446                                 if (i != 3)
 447                                         host->cmd->resp[i] |=
 448                                                 readb(host->ioaddr +
 449                                                 SDHCI_RESPONSE + (3-i)*4-1);
 450                         }
 451                 } else {
 452                         host->cmd->resp[0] = readl(host->ioaddr + SDHCI_RESPONSE);
 453                 }
 454         }
 455
 456         host->cmd->error = MMC_ERR_NONE;
 457
 458         DBG("Ending cmd (%x)\n", host->cmd->opcode);
 459
 460         if (host->cmd->data) {
 461                 u32 intmask;
 462
 463                 host->data = host->cmd->data;
 464
 465                 if (!(host->flags & SDHCI_USE_DMA)) {
 466                         /*
 467                          * Don't enable the interrupts until now to make sure we
 468                          * get stable handling of the FIFO.
 469                          */
 470                         intmask = readl(host->ioaddr + SDHCI_INT_ENABLE);
 471                         intmask |= SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL;
 472                         writel(intmask, host->ioaddr + SDHCI_INT_ENABLE);
 473
 474                         intmask = readl(host->ioaddr + SDHCI_SIGNAL_ENABLE);
 475                         intmask |= SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL;
 476                         writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE);
 477
 478                         /*
 479                          * The buffer interrupts are to unreliable so we
 480                          * start the transfer immediatly.
 481                          */
 482                         sdhci_transfer_pio(host);
 483                 }
 484         } else
 485                 tasklet_schedule(&host->finish_tasklet);
 486
 487         host->cmd = NULL;
 488 }
 489
 490 static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
 491 {
 492         int div;
 493         u16 clk;
 494         unsigned long timeout;
 495
 496         if (clock == host->clock)
 497                 return;
 498
 499         writew(0, host->ioaddr + SDHCI_CLOCK_CONTROL);
 500
 501         if (clock == 0)
 502                 goto out;
 503
 504         for (div = 1;div < 256;div *= 2) {
 505                 if ((host->max_clk / div) <= clock)
 506                         break;
 507         }
 508         div >>= 1;
 509
 510         clk = div << SDHCI_DIVIDER_SHIFT;
 511         clk |= SDHCI_CLOCK_INT_EN;
 512         writew(clk, host->ioaddr + SDHCI_CLOCK_CONTROL);
 513
 514         /* Wait max 10 ms */
 515         timeout = 10;
 516         while (!((clk = readw(host->ioaddr + SDHCI_CLOCK_CONTROL))
 517                 & SDHCI_CLOCK_INT_STABLE)) {
 518                 if (timeout == 0) {
 519                         printk(KERN_ERR "%s: Internal clock never stabilised. "
 520                                 "Please report this to " BUGMAIL ".\n",
 521                                 mmc_hostname(host->mmc));
 522                         sdhci_dumpregs(host);
 523                         return;
 524                 }
 525                 timeout--;
 526                 mdelay(1);
 527         }
 528
 529         clk |= SDHCI_CLOCK_CARD_EN;
 530         writew(clk, host->ioaddr + SDHCI_CLOCK_CONTROL);
 531
 532 out:
 533         host->clock = clock;
 534 }
 535
 536 static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
 537 {
 538         u8 pwr;
 539
 540         if (host->power == power)
 541                 return;
 542
 543         writeb(0, host->ioaddr + SDHCI_POWER_CONTROL);
 544
 545         if (power == (unsigned short)-1)
 546                 goto out;
 547
 548         pwr = SDHCI_POWER_ON;
 549
 550         switch (power) {
 551         case MMC_VDD_170:
 552         case MMC_VDD_180:
 553         case MMC_VDD_190:
 554                 pwr |= SDHCI_POWER_180;
 555                 break;
 556         case MMC_VDD_290:
 557         case MMC_VDD_300:
 558         case MMC_VDD_310:
 559                 pwr |= SDHCI_POWER_300;
 560                 break;
 561         case MMC_VDD_320:
 562         case MMC_VDD_330:
 563         case MMC_VDD_340:
 564                 pwr |= SDHCI_POWER_330;
 565                 break;
 566         default:
 567                 BUG();
 568         }
 569
 570         writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL);
 571
 572 out:
 573         host->power = power;
 574 }
 575
 576 /*****************************************************************************\
 577  *                                                                           *
 578  * MMC callbacks                                                             *
 579  *                                                                           *
 580 \*****************************************************************************/
 581
 582 static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 583 {
 584         struct sdhci_host *host;
 585         unsigned long flags;
 586
 587         host = mmc_priv(mmc);
 588
 589         spin_lock_irqsave(&host->lock, flags);
 590
 591         WARN_ON(host->mrq != NULL);
 592
 593         sdhci_activate_led(host);
 594
 595         host->mrq = mrq;
 596
 597         if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
 598                 host->mrq->cmd->error = MMC_ERR_TIMEOUT;
 599                 tasklet_schedule(&host->finish_tasklet);
 600         } else
 601                 sdhci_send_command(host, mrq->cmd);
 602
 603         spin_unlock_irqrestore(&host->lock, flags);
 604 }
 605
 606 static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 607 {
 608         struct sdhci_host *host;
 609         unsigned long flags;
 610         u8 ctrl;
 611
 612         host = mmc_priv(mmc);
 613
 614         spin_lock_irqsave(&host->lock, flags);
 615
 616         /*
 617          * Reset the chip on each power off.
 618          * Should clear out any weird states.
 619          */
 620         if (ios->power_mode == MMC_POWER_OFF) {
 621                 writel(0, host->ioaddr + SDHCI_SIGNAL_ENABLE);
 622                 spin_unlock_irqrestore(&host->lock, flags);
 623                 sdhci_init(host);
 624                 spin_lock_irqsave(&host->lock, flags);
 625         }
 626
 627         sdhci_set_clock(host, ios->clock);
 628
 629         if (ios->power_mode == MMC_POWER_OFF)
 630                 sdhci_set_power(host, -1);
 631         else
 632                 sdhci_set_power(host, ios->vdd);
 633
 634         ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL);
 635         if (ios->bus_width == MMC_BUS_WIDTH_4)
 636                 ctrl |= SDHCI_CTRL_4BITBUS;
 637         else
 638                 ctrl &= ~SDHCI_CTRL_4BITBUS;
 639         writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL);
 640
 641         spin_unlock_irqrestore(&host->lock, flags);
 642 }
 643
 644 static int sdhci_get_ro(struct mmc_host *mmc)
 645 {
 646         struct sdhci_host *host;
 647         unsigned long flags;
 648         int present;
 649
 650         host = mmc_priv(mmc);
 651
 652         spin_lock_irqsave(&host->lock, flags);
 653
 654         present = readl(host->ioaddr + SDHCI_PRESENT_STATE);
 655
 656         spin_unlock_irqrestore(&host->lock, flags);
 657
 658         return !(present & SDHCI_WRITE_PROTECT);
 659 }
 660
 661 static struct mmc_host_ops sdhci_ops = {
 662         .request        = sdhci_request,
 663         .set_ios        = sdhci_set_ios,
 664         .get_ro         = sdhci_get_ro,
 665 };
 666
 667 /*****************************************************************************\
 668  *                                                                           *
 669  * Tasklets                                                                  *
 670  *                                                                           *
 671 \*****************************************************************************/
 672
 673 static void sdhci_tasklet_card(unsigned long param)
 674 {
 675         struct sdhci_host *host;
 676         unsigned long flags;
 677
 678         host = (struct sdhci_host*)param;
 679
 680         spin_lock_irqsave(&host->lock, flags);
 681
 682         if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
 683                 if (host->mrq) {
 684                         printk(KERN_ERR "%s: Card removed during transfer!\n",
 685                                 mmc_hostname(host->mmc));
 686                         printk(KERN_ERR "%s: Resetting controller.\n",
 687                                 mmc_hostname(host->mmc));
 688
 689                         sdhci_reset(host, SDHCI_RESET_CMD);
 690                         sdhci_reset(host, SDHCI_RESET_DATA);
 691
 692                         host->mrq->cmd->error = MMC_ERR_FAILED;
 693                         tasklet_schedule(&host->finish_tasklet);
 694                 }
 695         }
 696
 697         spin_unlock_irqrestore(&host->lock, flags);
 698
 699         mmc_detect_change(host->mmc, msecs_to_jiffies(500));
 700 }
 701
 702 static void sdhci_tasklet_finish(unsigned long param)
 703 {
 704         struct sdhci_host *host;
 705         unsigned long flags;
 706         struct mmc_request *mrq;
 707
 708         host = (struct sdhci_host*)param;
 709
 710         spin_lock_irqsave(&host->lock, flags);
 711
 712         del_timer(&host->timer);
 713
 714         mrq = host->mrq;
 715
 716         DBG("Ending request, cmd (%x)\n", mrq->cmd->opcode);
 717
 718         /*
 719          * The controller needs a reset of internal state machines
 720          * upon error conditions.
 721          */
 722         if ((mrq->cmd->error != MMC_ERR_NONE) ||
 723                 (mrq->data && ((mrq->data->error != MMC_ERR_NONE) ||
 724                 (mrq->data->stop && (mrq->data->stop->error != MMC_ERR_NONE))))) {
 725                 sdhci_reset(host, SDHCI_RESET_CMD);
 726                 sdhci_reset(host, SDHCI_RESET_DATA);
 727         }
 728
 729         host->mrq = NULL;
 730         host->cmd = NULL;
 731         host->data = NULL;
 732
 733         sdhci_deactivate_led(host);
 734
 735         spin_unlock_irqrestore(&host->lock, flags);
 736
 737         mmc_request_done(host->mmc, mrq);
 738 }
 739
 740 static void sdhci_timeout_timer(unsigned long data)
 741 {
 742         struct sdhci_host *host;
 743         unsigned long flags;
 744
 745         host = (struct sdhci_host*)data;
 746
 747         spin_lock_irqsave(&host->lock, flags);
 748
 749         if (host->mrq) {
 750                 printk(KERN_ERR "%s: Timeout waiting for hardware interrupt. "
 751                         "Please report this to " BUGMAIL ".\n",
 752                         mmc_hostname(host->mmc));
 753                 sdhci_dumpregs(host);
 754
 755                 if (host->data) {
 756                         host->data->error = MMC_ERR_TIMEOUT;
 757                         sdhci_finish_data(host);
 758                 } else {
 759                         if (host->cmd)
 760                                 host->cmd->error = MMC_ERR_TIMEOUT;
 761                         else
 762                                 host->mrq->cmd->error = MMC_ERR_TIMEOUT;
 763
 764                         tasklet_schedule(&host->finish_tasklet);
 765                 }
 766         }
 767
 768         spin_unlock_irqrestore(&host->lock, flags);
 769 }
 770
 771 /*****************************************************************************\
 772  *                                                                           *
 773  * Interrupt handling                                                        *
 774  *                                                                           *
 775 \*****************************************************************************/
 776
 777 static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
 778 {
 779         BUG_ON(intmask == 0);
 780
 781         if (!host->cmd) {
 782                 printk(KERN_ERR "%s: Got command interrupt even though no "
 783                         "command operation was in progress.\n",
 784                         mmc_hostname(host->mmc));
 785                 printk(KERN_ERR "%s: Please report this to " BUGMAIL ".\n",
 786                         mmc_hostname(host->mmc));
 787                 sdhci_dumpregs(host);
 788                 return;
 789         }
 790
 791         if (intmask & SDHCI_INT_RESPONSE)
 792                 sdhci_finish_command(host);
 793         else {
 794                 if (intmask & SDHCI_INT_TIMEOUT)
 795                         host->cmd->error = MMC_ERR_TIMEOUT;
 796                 else if (intmask & SDHCI_INT_CRC)
 797                         host->cmd->error = MMC_ERR_BADCRC;
 798                 else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX))
 799                         host->cmd->error = MMC_ERR_FAILED;
 800                 else
 801                         host->cmd->error = MMC_ERR_INVALID;
 802
 803                 tasklet_schedule(&host->finish_tasklet);
 804         }
 805 }
 806
 807 static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
 808 {
 809         BUG_ON(intmask == 0);
 810
 811         if (!host->data) {
 812                 /*
 813                  * A data end interrupt is sent together with the response
 814                  * for the stop command.
 815                  */
 816                 if (intmask & SDHCI_INT_DATA_END)
 817                         return;
 818
 819                 printk(KERN_ERR "%s: Got data interrupt even though no "
 820                         "data operation was in progress.\n",
 821                         mmc_hostname(host->mmc));
 822                 printk(KERN_ERR "%s: Please report this to " BUGMAIL ".\n",
 823                         mmc_hostname(host->mmc));
 824                 sdhci_dumpregs(host);
 825
 826                 return;
 827         }
 828
 829         if (intmask & SDHCI_INT_DATA_TIMEOUT)
 830                 host->data->error = MMC_ERR_TIMEOUT;
 831         else if (intmask & SDHCI_INT_DATA_CRC)
 832                 host->data->error = MMC_ERR_BADCRC;
 833         else if (intmask & SDHCI_INT_DATA_END_BIT)
 834                 host->data->error = MMC_ERR_FAILED;
 835
 836         if (host->data->error != MMC_ERR_NONE)
 837                 sdhci_finish_data(host);
 838         else {
 839                 if (intmask & (SDHCI_INT_BUF_FULL | SDHCI_INT_BUF_EMPTY))
 840                         sdhci_transfer_pio(host);
 841
 842                 if (intmask & SDHCI_INT_DATA_END)
 843                         sdhci_finish_data(host);
 844         }
 845 }
 846
 847 static irqreturn_t sdhci_irq(int irq, void *dev_id, struct pt_regs *regs)
 848 {
 849         irqreturn_t result;
 850         struct sdhci_host* host = dev_id;
 851         u32 intmask;
 852
 853         spin_lock(&host->lock);
 854
 855         intmask = readl(host->ioaddr + SDHCI_INT_STATUS);
 856
 857         if (!intmask) {
 858                 result = IRQ_NONE;
 859                 goto out;
 860         }
 861
 862         DBG("*** %s got interrupt: 0x%08x\n", host->slot_descr, intmask);
 863
 864         if (intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE))
 865                 tasklet_schedule(&host->card_tasklet);
 866
 867         if (intmask & SDHCI_INT_CMD_MASK) {
 868                 sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
 869
 870                 writel(intmask & SDHCI_INT_CMD_MASK,
 871                         host->ioaddr + SDHCI_INT_STATUS);
 872         }
 873
 874         if (intmask & SDHCI_INT_DATA_MASK) {
 875                 sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
 876
 877                 writel(intmask & SDHCI_INT_DATA_MASK,
 878                         host->ioaddr + SDHCI_INT_STATUS);
 879         }
 880
 881         intmask &= ~(SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK);
 882
 883         if (intmask & SDHCI_INT_CARD_INT) {
 884                 printk(KERN_ERR "%s: Unexpected card interrupt. Please "
 885                         "report this to " BUGMAIL ".\n",
 886                         mmc_hostname(host->mmc));
 887                 sdhci_dumpregs(host);
 888         }
 889
 890         if (intmask & SDHCI_INT_BUS_POWER) {
 891                 printk(KERN_ERR "%s: Unexpected bus power interrupt. Please "
 892                         "report this to " BUGMAIL ".\n",
 893                         mmc_hostname(host->mmc));
 894                 sdhci_dumpregs(host);
 895         }
 896
 897         if (intmask & SDHCI_INT_ACMD12ERR) {
 898                 printk(KERN_ERR "%s: Unexpected auto CMD12 error. Please "
 899                         "report this to " BUGMAIL ".\n",
 900                         mmc_hostname(host->mmc));
 901                 sdhci_dumpregs(host);
 902
 903                 writew(~0, host->ioaddr + SDHCI_ACMD12_ERR);
 904         }
 905
 906         if (intmask)
 907                 writel(intmask, host->ioaddr + SDHCI_INT_STATUS);
 908
 909         result = IRQ_HANDLED;
 910
 911 out:
 912         spin_unlock(&host->lock);
 913
 914         return result;
 915 }
 916
 917 /*****************************************************************************\
 918  *                                                                           *
 919  * Suspend/resume                                                            *
 920  *                                                                           *
 921 \*****************************************************************************/
 922
 923 #ifdef CONFIG_PM
 924
 925 static int sdhci_suspend (struct pci_dev *pdev, pm_message_t state)
 926 {
 927         struct sdhci_chip *chip;
 928         int i, ret;
 929
 930         chip = pci_get_drvdata(pdev);
 931         if (!chip)
 932                 return 0;
 933
 934         DBG("Suspending...\n");
 935
 936         for (i = 0;i < chip->num_slots;i++) {
 937                 if (!chip->hosts[i])
 938                         continue;
 939                 ret = mmc_suspend_host(chip->hosts[i]->mmc, state);
 940                 if (ret) {
 941                         for (i--;i >= 0;i--)
 942                                 mmc_resume_host(chip->hosts[i]->mmc);
 943                         return ret;
 944                 }
 945         }
 946
 947         pci_save_state(pdev);
 948         pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
 949         pci_disable_device(pdev);
 950         pci_set_power_state(pdev, pci_choose_state(pdev, state));
 951
 952         return 0;
 953 }
 954
 955 static int sdhci_resume (struct pci_dev *pdev)
 956 {
 957         struct sdhci_chip *chip;
 958         int i, ret;
 959
 960         chip = pci_get_drvdata(pdev);
 961         if (!chip)
 962                 return 0;
 963
 964         DBG("Resuming...\n");
 965
 966         pci_set_power_state(pdev, PCI_D0);
 967         pci_restore_state(pdev);
 968         pci_enable_device(pdev);
 969
 970         for (i = 0;i < chip->num_slots;i++) {
 971                 if (!chip->hosts[i])
 972                         continue;
 973                 if (chip->hosts[i]->flags & SDHCI_USE_DMA)
 974                         pci_set_master(pdev);
 975                 sdhci_init(chip->hosts[i]);
 976                 ret = mmc_resume_host(chip->hosts[i]->mmc);
 977                 if (ret)
 978                         return ret;
 979         }
 980
 981         return 0;
 982 }
 983
 984 #else /* CONFIG_PM */
 985
 986 #define sdhci_suspend NULL
 987 #define sdhci_resume NULL
 988
 989 #endif /* CONFIG_PM */
 990
 991 /*****************************************************************************\
 992  *                                                                           *
 993  * Device probing/removal                                                    *
 994  *                                                                           *
 995 \*****************************************************************************/
 996
 997 static int __devinit sdhci_probe_slot(struct pci_dev *pdev, int slot)
 998 {
 999         int ret;
1000         struct sdhci_chip *chip;
1001         struct mmc_host *mmc;
1002         struct sdhci_host *host;
1003
1004         u8 first_bar;
1005         unsigned int caps;
1006
1007         chip = pci_get_drvdata(pdev);
1008         BUG_ON(!chip);
1009
1010         ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar);
1011         if (ret)
1012                 return ret;
1013
1014         first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;
1015
1016         if (first_bar > 5) {
1017                 printk(KERN_ERR DRIVER_NAME ": Invalid first BAR. Aborting.\n");
1018                 return -ENODEV;
1019         }
1020
1021         if (!(pci_resource_flags(pdev, first_bar + slot) & IORESOURCE_MEM)) {
1022                 printk(KERN_ERR DRIVER_NAME ": BAR is not iomem. Aborting.\n");
1023                 return -ENODEV;
1024         }
1025
1026         if (pci_resource_len(pdev, first_bar + slot) != 0x100) {
1027                 printk(KERN_ERR DRIVER_NAME ": Invalid iomem size. Aborting.\n");
1028                 return -ENODEV;
1029         }
1030
1031         mmc = mmc_alloc_host(sizeof(struct sdhci_host), &pdev->dev);
1032         if (!mmc)
1033                 return -ENOMEM;
1034
1035         host = mmc_priv(mmc);
1036         host->mmc = mmc;
1037
1038         host->bar = first_bar + slot;
1039
1040         host->addr = pci_resource_start(pdev, host->bar);
1041         host->irq = pdev->irq;
1042
1043         DBG("slot %d at 0x%08lx, irq %d\n", slot, host->addr, host->irq);
1044
1045         snprintf(host->slot_descr, 20, "sdhci:slot%d", slot);
1046
1047         ret = pci_request_region(pdev, host->bar, host->slot_descr);
1048         if (ret)
1049                 goto free;
1050
1051         host->ioaddr = ioremap_nocache(host->addr,
1052                 pci_resource_len(pdev, host->bar));
1053         if (!host->ioaddr) {
1054                 ret = -ENOMEM;
1055                 goto release;
1056         }
1057
1058         caps = readl(host->ioaddr + SDHCI_CAPABILITIES);
1059
1060         if ((caps & SDHCI_CAN_DO_DMA) && ((pdev->class & 0x0000FF) == 0x01))
1061                 host->flags |= SDHCI_USE_DMA;
1062
1063         if (host->flags & SDHCI_USE_DMA) {
1064                 if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
1065                         printk(KERN_WARNING "%s: No suitable DMA available. "
1066                                 "Falling back to PIO.\n", host->slot_descr);
1067                         host->flags &= ~SDHCI_USE_DMA;
1068                 }
1069         }
1070
1071         if (host->flags & SDHCI_USE_DMA)
1072                 pci_set_master(pdev);
1073         else /* XXX: Hack to get MMC layer to avoid highmem */
1074                 pdev->dma_mask = 0;
1075
1076         host->max_clk =
1077                 (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT;
1078         if (host->max_clk == 0) {
1079                 printk(KERN_ERR "%s: Hardware doesn't specify base clock "
1080                         "frequency.\n", host->slot_descr);
1081                 ret = -ENODEV;
1082                 goto unmap;
1083         }
1084         host->max_clk *= 1000000;
1085
1086         /*
1087          * Set host parameters.
1088          */
1089         mmc->ops = &sdhci_ops;
1090         mmc->f_min = host->max_clk / 256;
1091         mmc->f_max = host->max_clk;
1092         mmc->caps = MMC_CAP_4_BIT_DATA;
1093
1094         mmc->ocr_avail = 0;
1095         if (caps & SDHCI_CAN_VDD_330)
1096                 mmc->ocr_avail |= MMC_VDD_32_33|MMC_VDD_33_34;
1097         else if (caps & SDHCI_CAN_VDD_300)
1098                 mmc->ocr_avail |= MMC_VDD_29_30|MMC_VDD_30_31;
1099         else if (caps & SDHCI_CAN_VDD_180)
1100                 mmc->ocr_avail |= MMC_VDD_17_18|MMC_VDD_18_19;
1101
1102         if (mmc->ocr_avail == 0) {
1103                 printk(KERN_ERR "%s: Hardware doesn't report any "
1104                         "support voltages.\n", host->slot_descr);
1105                 ret = -ENODEV;
1106                 goto unmap;
1107         }
1108
1109         spin_lock_init(&host->lock);
1110
1111         /*
1112          * Maximum number of segments. Hardware cannot do scatter lists.
1113          */
1114         if (host->flags & SDHCI_USE_DMA)
1115                 mmc->max_hw_segs = 1;
1116         else
1117                 mmc->max_hw_segs = 16;
1118         mmc->max_phys_segs = 16;
1119
1120         /*
1121          * Maximum number of sectors in one transfer. Limited by sector
1122          * count register.
1123          */
1124         mmc->max_sectors = 0x3FFF;
1125
1126         /*
1127          * Maximum segment size. Could be one segment with the maximum number
1128          * of sectors.
1129          */
1130         mmc->max_seg_size = mmc->max_sectors * 512;
1131
1132         /*
1133          * Init tasklets.
1134          */
1135         tasklet_init(&host->card_tasklet,
1136                 sdhci_tasklet_card, (unsigned long)host);
1137         tasklet_init(&host->finish_tasklet,
1138                 sdhci_tasklet_finish, (unsigned long)host);
1139
1140         setup_timer(&host->timer, sdhci_timeout_timer, (long)host);
1141
1142         ret = request_irq(host->irq, sdhci_irq, SA_SHIRQ,
1143                 host->slot_descr, host);
1144         if (ret)
1145                 goto untasklet;
1146
1147         sdhci_init(host);
1148
1149 #ifdef CONFIG_MMC_DEBUG
1150         sdhci_dumpregs(host);
1151 #endif
1152
1153         host->chip = chip;
1154         chip->hosts[slot] = host;
1155
1156         mmc_add_host(mmc);
1157
1158         printk(KERN_INFO "%s: SDHCI at 0x%08lx irq %d %s\n", mmc_hostname(mmc),
1159                 host->addr, host->irq,
1160                 (host->flags & SDHCI_USE_DMA)?"DMA":"PIO");
1161
1162         return 0;
1163
1164 untasklet:
1165         tasklet_kill(&host->card_tasklet);
1166         tasklet_kill(&host->finish_tasklet);
1167 unmap:
1168         iounmap(host->ioaddr);
1169 release:
1170         pci_release_region(pdev, host->bar);
1171 free:
1172         mmc_free_host(mmc);
1173
1174         return ret;
1175 }
1176
1177 static void sdhci_remove_slot(struct pci_dev *pdev, int slot)
1178 {
1179         struct sdhci_chip *chip;
1180         struct mmc_host *mmc;
1181         struct sdhci_host *host;
1182
1183         chip = pci_get_drvdata(pdev);
1184         host = chip->hosts[slot];
1185         mmc = host->mmc;
1186
1187         chip->hosts[slot] = NULL;
1188
1189         mmc_remove_host(mmc);
1190
1191         sdhci_reset(host, SDHCI_RESET_ALL);
1192
1193         free_irq(host->irq, host);
1194
1195         del_timer_sync(&host->timer);
1196
1197         tasklet_kill(&host->card_tasklet);
1198         tasklet_kill(&host->finish_tasklet);
1199
1200         iounmap(host->ioaddr);
1201
1202         pci_release_region(pdev, host->bar);
1203
1204         mmc_free_host(mmc);
1205 }
1206
1207 static int __devinit sdhci_probe(struct pci_dev *pdev,
1208         const struct pci_device_id *ent)
1209 {
1210         int ret, i;
1211         u8 slots, rev;
1212         struct sdhci_chip *chip;
1213
1214         BUG_ON(pdev == NULL);
1215         BUG_ON(ent == NULL);
1216
1217         pci_read_config_byte(pdev, PCI_CLASS_REVISION, &rev);
1218
1219         printk(KERN_INFO DRIVER_NAME
1220                 ": SDHCI controller found at %s [%04x:%04x] (rev %x)\n",
1221                 pci_name(pdev), (int)pdev->vendor, (int)pdev->device,
1222                 (int)rev);
1223
1224         ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
1225         if (ret)
1226                 return ret;
1227
1228         slots = PCI_SLOT_INFO_SLOTS(slots) + 1;
1229         DBG("found %d slot(s)\n", slots);
1230         if (slots == 0)
1231                 return -ENODEV;
1232
1233         ret = pci_enable_device(pdev);
1234         if (ret)
1235                 return ret;
1236
1237         chip = kzalloc(sizeof(struct sdhci_chip) +
1238                 sizeof(struct sdhci_host*) * slots, GFP_KERNEL);
1239         if (!chip) {
1240                 ret = -ENOMEM;
1241                 goto err;
1242         }
1243
1244         chip->pdev = pdev;
1245
1246         chip->num_slots = slots;
1247         pci_set_drvdata(pdev, chip);
1248
1249         for (i = 0;i < slots;i++) {
1250                 ret = sdhci_probe_slot(pdev, i);
1251                 if (ret) {
1252                         for (i--;i >= 0;i--)
1253                                 sdhci_remove_slot(pdev, i);
1254                         goto free;
1255                 }
1256         }
1257
1258         return 0;
1259
1260 free:
1261         pci_set_drvdata(pdev, NULL);
1262         kfree(chip);
1263
1264 err:
1265         pci_disable_device(pdev);
1266         return ret;
1267 }
1268
1269 static void __devexit sdhci_remove(struct pci_dev *pdev)
1270 {
1271         int i;
1272         struct sdhci_chip *chip;
1273
1274         chip = pci_get_drvdata(pdev);
1275
1276         if (chip) {
1277                 for (i = 0;i < chip->num_slots;i++)
1278                         sdhci_remove_slot(pdev, i);
1279
1280                 pci_set_drvdata(pdev, NULL);
1281
1282                 kfree(chip);
1283         }
1284
1285         pci_disable_device(pdev);
1286 }
1287
1288 static struct pci_driver sdhci_driver = {
1289         .name =         DRIVER_NAME,
1290         .id_table =     pci_ids,
1291         .probe =        sdhci_probe,
1292         .remove =       __devexit_p(sdhci_remove),
1293         .suspend =      sdhci_suspend,
1294         .resume =       sdhci_resume,
1295 };
1296
1297 /*****************************************************************************\
1298  *                                                                           *
1299  * Driver init/exit                                                          *
1300  *                                                                           *
1301 \*****************************************************************************/
1302
1303 static int __init sdhci_drv_init(void)
1304 {
1305         printk(KERN_INFO DRIVER_NAME
1306                 ": Secure Digital Host Controller Interface driver, "
1307                 DRIVER_VERSION "\n");
1308         printk(KERN_INFO DRIVER_NAME ": Copyright(c) Pierre Ossman\n");
1309
1310         return pci_register_driver(&sdhci_driver);
1311 }
1312
1313 static void __exit sdhci_drv_exit(void)
1314 {
1315         DBG("Exiting\n");
1316
1317         pci_unregister_driver(&sdhci_driver);
1318 }
1319
1320 module_init(sdhci_drv_init);
1321 module_exit(sdhci_drv_exit);
1322
1323 MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");
1324 MODULE_DESCRIPTION("Secure Digital Host Controller Interface driver");
1325 MODULE_VERSION(DRIVER_VERSION);
1326 MODULE_LICENSE("GPL");