drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16 #include <linux/types.h>
  17 #include <linux/netdevice.h>
  18 #include <linux/mmc/sdio.h>
  19 #include <linux/mmc/core.h>
  20 #include <linux/mmc/sdio_func.h>
  21 #include <linux/mmc/sdio_ids.h>
  22 #include <linux/mmc/card.h>
  23 #include <linux/suspend.h>
  24 #include <linux/errno.h>
  25 #include <linux/sched.h>        /* request_irq() */
  26 #include <linux/module.h>
  27 #include <net/cfg80211.h>
  28
  29 #include <defs.h>
  30 #include <brcm_hw_ids.h>
  31 #include <brcmu_utils.h>
  32 #include <brcmu_wifi.h>
  33 #include "sdio_host.h"
  34 #include "dhd.h"
  35 #include "dhd_dbg.h"
  36 #include "wl_cfg80211.h"
  37
  38 #define SDIO_VENDOR_ID_BROADCOM         0x02d0
  39
  40 #define DMA_ALIGN_MASK  0x03
  41
  42 #define SDIO_DEVICE_ID_BROADCOM_4329    0x4329
  43
  44 #define SDIO_FUNC1_BLOCKSIZE            64
  45 #define SDIO_FUNC2_BLOCKSIZE            512
  46
  47 /* devices we support, null terminated */
  48 static const struct sdio_device_id brcmf_sdmmc_ids[] = {
  49         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
  50         { /* end: all zeroes */ },
  51 };
  52 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
  53
  54 static bool
  55 brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
  56 {
  57         bool is_err = false;
  58 #ifdef CONFIG_PM_SLEEP
  59         is_err = atomic_read(&sdiodev->suspend);
  60 #endif
  61         return is_err;
  62 }
  63
  64 static void
  65 brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq)
  66 {
  67 #ifdef CONFIG_PM_SLEEP
  68         int retry = 0;
  69         while (atomic_read(&sdiodev->suspend) && retry++ != 30)
  70                 wait_event_timeout(*wq, false, HZ/100);
  71 #endif
  72 }
  73
  74 static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
  75                                             uint regaddr, u8 *byte)
  76 {
  77         struct sdio_func *sdfunc = sdiodev->func[0];
  78         int err_ret;
  79
  80         /*
  81          * Can only directly write to some F0 registers.
  82          * Handle F2 enable/disable and Abort command
  83          * as a special case.
  84          */
  85         if (regaddr == SDIO_CCCR_IOEx) {
  86                 sdfunc = sdiodev->func[2];
  87                 if (sdfunc) {
  88                         sdio_claim_host(sdfunc);
  89                         if (*byte & SDIO_FUNC_ENABLE_2) {
  90                                 /* Enable Function 2 */
  91                                 err_ret = sdio_enable_func(sdfunc);
  92                                 if (err_ret)
  93                                         brcmf_dbg(ERROR,
  94                                                   "enable F2 failed:%d\n",
  95                                                   err_ret);
  96                         } else {
  97                                 /* Disable Function 2 */
  98                                 err_ret = sdio_disable_func(sdfunc);
  99                                 if (err_ret)
 100                                         brcmf_dbg(ERROR,
 101                                                   "Disable F2 failed:%d\n",
 102                                                   err_ret);
 103                         }
 104                         sdio_release_host(sdfunc);
 105                 }
 106         } else if (regaddr == SDIO_CCCR_ABORT) {
 107                 sdio_claim_host(sdfunc);
 108                 sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
 109                 sdio_release_host(sdfunc);
 110         } else if (regaddr < 0xF0) {
 111                 brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr);
 112                 err_ret = -EPERM;
 113         } else {
 114                 sdio_claim_host(sdfunc);
 115                 sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
 116                 sdio_release_host(sdfunc);
 117         }
 118
 119         return err_ret;
 120 }
 121
 122 int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
 123                              uint regaddr, u8 *byte)
 124 {
 125         int err_ret;
 126
 127         brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);
 128
 129         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
 130         if (brcmf_pm_resume_error(sdiodev))
 131                 return -EIO;
 132
 133         if (rw && func == 0) {
 134                 /* handle F0 separately */
 135                 err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
 136         } else {
 137                 sdio_claim_host(sdiodev->func[func]);
 138                 if (rw) /* CMD52 Write */
 139                         sdio_writeb(sdiodev->func[func], *byte, regaddr,
 140                                     &err_ret);
 141                 else if (func == 0) {
 142                         *byte = sdio_f0_readb(sdiodev->func[func], regaddr,
 143                                               &err_ret);
 144                 } else {
 145                         *byte = sdio_readb(sdiodev->func[func], regaddr,
 146                                            &err_ret);
 147                 }
 148                 sdio_release_host(sdiodev->func[func]);
 149         }
 150
 151         if (err_ret)
 152                 brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
 153                           rw ? "write" : "read", func, regaddr, *byte, err_ret);
 154
 155         return err_ret;
 156 }
 157
 158 int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 159                              uint rw, uint func, uint addr, u32 *word,
 160                              uint nbytes)
 161 {
 162         int err_ret = -EIO;
 163
 164         if (func == 0) {
 165                 brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n");
 166                 return -EINVAL;
 167         }
 168
 169         brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
 170                   rw, func, addr, nbytes);
 171
 172         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
 173         if (brcmf_pm_resume_error(sdiodev))
 174                 return -EIO;
 175         /* Claim host controller */
 176         sdio_claim_host(sdiodev->func[func]);
 177
 178         if (rw) {               /* CMD52 Write */
 179                 if (nbytes == 4)
 180                         sdio_writel(sdiodev->func[func], *word, addr,
 181                                     &err_ret);
 182                 else if (nbytes == 2)
 183                         sdio_writew(sdiodev->func[func], (*word & 0xFFFF),
 184                                     addr, &err_ret);
 185                 else
 186                         brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
 187         } else {                /* CMD52 Read */
 188                 if (nbytes == 4)
 189                         *word = sdio_readl(sdiodev->func[func], addr, &err_ret);
 190                 else if (nbytes == 2)
 191                         *word = sdio_readw(sdiodev->func[func], addr,
 192                                            &err_ret) & 0xFFFF;
 193                 else
 194                         brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
 195         }
 196
 197         /* Release host controller */
 198         sdio_release_host(sdiodev->func[func]);
 199
 200         if (err_ret)
 201                 brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n",
 202                           rw ? "write" : "read", err_ret);
 203
 204         return err_ret;
 205 }
 206
 207 /* precondition: host controller is claimed */
 208 static int
 209 brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
 210                          uint func, uint addr, struct sk_buff *pkt, uint pktlen)
 211 {
 212         int err_ret = 0;
 213
 214         if ((write) && (!fifo)) {
 215                 err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
 216                                            ((u8 *) (pkt->data)), pktlen);
 217         } else if (write) {
 218                 err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
 219                                            ((u8 *) (pkt->data)), pktlen);
 220         } else if (fifo) {
 221                 err_ret = sdio_readsb(sdiodev->func[func],
 222                                       ((u8 *) (pkt->data)), addr, pktlen);
 223         } else {
 224                 err_ret = sdio_memcpy_fromio(sdiodev->func[func],
 225                                              ((u8 *) (pkt->data)),
 226                                              addr, pktlen);
 227         }
 228
 229         return err_ret;
 230 }
 231
 232 /*
 233  * This function takes a queue of packets. The packets on the queue
 234  * are assumed to be properly aligned by the caller.
 235  */
 236 int
 237 brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 238                           uint write, uint func, uint addr,
 239                           struct sk_buff_head *pktq)
 240 {
 241         bool fifo = (fix_inc == SDIOH_DATA_FIX);
 242         u32 SGCount = 0;
 243         int err_ret = 0;
 244
 245         struct sk_buff *pkt;
 246
 247         brcmf_dbg(TRACE, "Enter\n");
 248
 249         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
 250         if (brcmf_pm_resume_error(sdiodev))
 251                 return -EIO;
 252
 253         /* Claim host controller */
 254         sdio_claim_host(sdiodev->func[func]);
 255
 256         skb_queue_walk(pktq, pkt) {
 257                 uint pkt_len = pkt->len;
 258                 pkt_len += 3;
 259                 pkt_len &= 0xFFFFFFFC;
 260
 261                 err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
 262                                                    addr, pkt, pkt_len);
 263                 if (err_ret) {
 264                         brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
 265                                   write ? "TX" : "RX", pkt, SGCount, addr,
 266                                   pkt_len, err_ret);
 267                 } else {
 268                         brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
 269                                   write ? "TX" : "RX", pkt, SGCount, addr,
 270                                   pkt_len);
 271                 }
 272                 if (!fifo)
 273                         addr += pkt_len;
 274
 275                 SGCount++;
 276         }
 277
 278         /* Release host controller */
 279         sdio_release_host(sdiodev->func[func]);
 280
 281         brcmf_dbg(TRACE, "Exit\n");
 282         return err_ret;
 283 }
 284
 285 /*
 286  * This function takes a single DMA-able packet.
 287  */
 288 int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
 289                                uint fix_inc, uint write, uint func, uint addr,
 290                                struct sk_buff *pkt)
 291 {
 292         int status;
 293         uint pkt_len = pkt->len;
 294         bool fifo = (fix_inc == SDIOH_DATA_FIX);
 295
 296         brcmf_dbg(TRACE, "Enter\n");
 297
 298         if (pkt == NULL)
 299                 return -EINVAL;
 300
 301         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
 302         if (brcmf_pm_resume_error(sdiodev))
 303                 return -EIO;
 304
 305         /* Claim host controller */
 306         sdio_claim_host(sdiodev->func[func]);
 307
 308         pkt_len += 3;
 309         pkt_len &= (uint)~3;
 310
 311         status = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
 312                                            addr, pkt, pkt_len);
 313         if (status) {
 314                 brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
 315                           write ? "TX" : "RX", pkt, addr, pkt_len, status);
 316         } else {
 317                 brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n",
 318                           write ? "TX" : "RX", pkt, addr, pkt_len);
 319         }
 320
 321         /* Release host controller */
 322         sdio_release_host(sdiodev->func[func]);
 323
 324         return status;
 325 }
 326
 327 /* Read client card reg */
 328 static int
 329 brcmf_sdioh_card_regread(struct brcmf_sdio_dev *sdiodev, int func, u32 regaddr,
 330                          int regsize, u32 *data)
 331 {
 332
 333         if ((func == 0) || (regsize == 1)) {
 334                 u8 temp = 0;
 335
 336                 brcmf_sdioh_request_byte(sdiodev, SDIOH_READ, func, regaddr,
 337                                          &temp);
 338                 *data = temp;
 339                 *data &= 0xff;
 340                 brcmf_dbg(DATA, "byte read data=0x%02x\n", *data);
 341         } else {
 342                 brcmf_sdioh_request_word(sdiodev, SDIOH_READ, func, regaddr,
 343                                          data, regsize);
 344                 if (regsize == 2)
 345                         *data &= 0xffff;
 346
 347                 brcmf_dbg(DATA, "word read data=0x%08x\n", *data);
 348         }
 349
 350         return SUCCESS;
 351 }
 352
 353 static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
 354 {
 355         /* read 24 bits and return valid 17 bit addr */
 356         int i;
 357         u32 scratch, regdata;
 358         __le32 scratch_le;
 359         u8 *ptr = (u8 *)&scratch_le;
 360
 361         for (i = 0; i < 3; i++) {
 362                 if ((brcmf_sdioh_card_regread(sdiodev, 0, regaddr, 1,
 363                                 &regdata)) != SUCCESS)
 364                         brcmf_dbg(ERROR, "Can't read!\n");
 365
 366                 *ptr++ = (u8) regdata;
 367                 regaddr++;
 368         }
 369
 370         /* Only the lower 17-bits are valid */
 371         scratch = le32_to_cpu(scratch_le);
 372         scratch &= 0x0001FFFF;
 373         return scratch;
 374 }
 375
 376 static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
 377 {
 378         int err_ret;
 379         u32 fbraddr;
 380         u8 func;
 381
 382         brcmf_dbg(TRACE, "\n");
 383
 384         /* Get the Card's common CIS address */
 385         sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev,
 386                                                            SDIO_CCCR_CIS);
 387         brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n",
 388                   sdiodev->func_cis_ptr[0]);
 389
 390         /* Get the Card's function CIS (for each function) */
 391         for (fbraddr = SDIO_FBR_BASE(1), func = 1;
 392              func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
 393                 sdiodev->func_cis_ptr[func] =
 394                     brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr);
 395                 brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n",
 396                           func, sdiodev->func_cis_ptr[func]);
 397         }
 398
 399         /* Enable Function 1 */
 400         sdio_claim_host(sdiodev->func[1]);
 401         err_ret = sdio_enable_func(sdiodev->func[1]);
 402         sdio_release_host(sdiodev->func[1]);
 403         if (err_ret)
 404                 brcmf_dbg(ERROR, "Failed to enable F1 Err: 0x%08x\n", err_ret);
 405
 406         return false;
 407 }
 408
 409 /*
 410  *      Public entry points & extern's
 411  */
 412 int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
 413 {
 414         int err_ret = 0;
 415
 416         brcmf_dbg(TRACE, "\n");
 417
 418         sdiodev->num_funcs = 2;
 419
 420         sdio_claim_host(sdiodev->func[1]);
 421         err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE);
 422         sdio_release_host(sdiodev->func[1]);
 423         if (err_ret) {
 424                 brcmf_dbg(ERROR, "Failed to set F1 blocksize\n");
 425                 goto out;
 426         }
 427
 428         sdio_claim_host(sdiodev->func[2]);
 429         err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE);
 430         sdio_release_host(sdiodev->func[2]);
 431         if (err_ret) {
 432                 brcmf_dbg(ERROR, "Failed to set F2 blocksize\n");
 433                 goto out;
 434         }
 435
 436         brcmf_sdioh_enablefuncs(sdiodev);
 437
 438 out:
 439         brcmf_dbg(TRACE, "Done\n");
 440         return err_ret;
 441 }
 442
 443 void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
 444 {
 445         brcmf_dbg(TRACE, "\n");
 446
 447         /* Disable Function 2 */
 448         sdio_claim_host(sdiodev->func[2]);
 449         sdio_disable_func(sdiodev->func[2]);
 450         sdio_release_host(sdiodev->func[2]);
 451
 452         /* Disable Function 1 */
 453         sdio_claim_host(sdiodev->func[1]);
 454         sdio_disable_func(sdiodev->func[1]);
 455         sdio_release_host(sdiodev->func[1]);
 456
 457 }
 458
 459 static int brcmf_ops_sdio_probe(struct sdio_func *func,
 460                               const struct sdio_device_id *id)
 461 {
 462         int ret = 0;
 463         struct brcmf_sdio_dev *sdiodev;
 464         struct brcmf_bus *bus_if;
 465         brcmf_dbg(TRACE, "Enter\n");
 466         brcmf_dbg(TRACE, "func->class=%x\n", func->class);
 467         brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor);
 468         brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device);
 469         brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num);
 470
 471         if (func->num == 1) {
 472                 if (dev_get_drvdata(&func->card->dev)) {
 473                         brcmf_dbg(ERROR, "card private drvdata occupied\n");
 474                         return -ENXIO;
 475                 }
 476                 bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
 477                 if (!bus_if)
 478                         return -ENOMEM;
 479                 sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
 480                 if (!sdiodev) {
 481                         kfree(bus_if);
 482                         return -ENOMEM;
 483                 }
 484                 sdiodev->func[0] = func->card->sdio_func[0];
 485                 sdiodev->func[1] = func;
 486                 sdiodev->bus_if = bus_if;
 487                 bus_if->bus_priv = sdiodev;
 488                 bus_if->type = SDIO_BUS;
 489                 dev_set_drvdata(&func->card->dev, sdiodev);
 490
 491                 atomic_set(&sdiodev->suspend, false);
 492                 init_waitqueue_head(&sdiodev->request_byte_wait);
 493                 init_waitqueue_head(&sdiodev->request_word_wait);
 494                 init_waitqueue_head(&sdiodev->request_chain_wait);
 495                 init_waitqueue_head(&sdiodev->request_buffer_wait);
 496         }
 497
 498         if (func->num == 2) {
 499                 sdiodev = dev_get_drvdata(&func->card->dev);
 500                 if ((!sdiodev) || (sdiodev->func[1]->card != func->card))
 501                         return -ENODEV;
 502                 sdiodev->func[2] = func;
 503
 504                 bus_if = sdiodev->bus_if;
 505                 sdiodev->dev = &func->dev;
 506                 dev_set_drvdata(&func->dev, bus_if);
 507
 508                 brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n");
 509                 ret = brcmf_sdio_probe(sdiodev);
 510         }
 511
 512         return ret;
 513 }
 514
 515 static void brcmf_ops_sdio_remove(struct sdio_func *func)
 516 {
 517         struct brcmf_bus *bus_if;
 518         struct brcmf_sdio_dev *sdiodev;
 519         brcmf_dbg(TRACE, "Enter\n");
 520         brcmf_dbg(INFO, "func->class=%x\n", func->class);
 521         brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor);
 522         brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device);
 523         brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num);
 524
 525         if (func->num == 2) {
 526                 bus_if = dev_get_drvdata(&func->dev);
 527                 sdiodev = bus_if->bus_priv;
 528                 brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n");
 529                 brcmf_sdio_remove(sdiodev);
 530                 dev_set_drvdata(&func->card->dev, NULL);
 531                 dev_set_drvdata(&func->dev, NULL);
 532                 kfree(bus_if);
 533                 kfree(sdiodev);
 534         }
 535 }
 536
 537 #ifdef CONFIG_PM_SLEEP
 538 static int brcmf_sdio_suspend(struct device *dev)
 539 {
 540         mmc_pm_flag_t sdio_flags;
 541         struct sdio_func *func = dev_to_sdio_func(dev);
 542         struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
 543         int ret = 0;
 544
 545         brcmf_dbg(TRACE, "\n");
 546
 547         atomic_set(&sdiodev->suspend, true);
 548
 549         sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
 550         if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
 551                 brcmf_dbg(ERROR, "Host can't keep power while suspended\n");
 552                 return -EINVAL;
 553         }
 554
 555         ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
 556         if (ret) {
 557                 brcmf_dbg(ERROR, "Failed to set pm_flags\n");
 558                 return ret;
 559         }
 560
 561         brcmf_sdio_wdtmr_enable(sdiodev, false);
 562
 563         return ret;
 564 }
 565
 566 static int brcmf_sdio_resume(struct device *dev)
 567 {
 568         struct sdio_func *func = dev_to_sdio_func(dev);
 569         struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
 570
 571         brcmf_sdio_wdtmr_enable(sdiodev, true);
 572         atomic_set(&sdiodev->suspend, false);
 573         return 0;
 574 }
 575
 576 static const struct dev_pm_ops brcmf_sdio_pm_ops = {
 577         .suspend        = brcmf_sdio_suspend,
 578         .resume         = brcmf_sdio_resume,
 579 };
 580 #endif  /* CONFIG_PM_SLEEP */
 581
 582 static struct sdio_driver brcmf_sdmmc_driver = {
 583         .probe = brcmf_ops_sdio_probe,
 584         .remove = brcmf_ops_sdio_remove,
 585         .name = "brcmfmac",
 586         .id_table = brcmf_sdmmc_ids,
 587 #ifdef CONFIG_PM_SLEEP
 588         .drv = {
 589                 .pm = &brcmf_sdio_pm_ops,
 590         },
 591 #endif  /* CONFIG_PM_SLEEP */
 592 };
 593
 594 static void __exit brcmf_sdio_exit(void)
 595 {
 596         brcmf_dbg(TRACE, "Enter\n");
 597
 598         sdio_unregister_driver(&brcmf_sdmmc_driver);
 599 }
 600
 601 static int __init brcmf_sdio_init(void)
 602 {
 603         int ret;
 604
 605         brcmf_dbg(TRACE, "Enter\n");
 606
 607         ret = sdio_register_driver(&brcmf_sdmmc_driver);
 608
 609         if (ret)
 610                 brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
 611
 612         return ret;
 613 }
 614
 615 module_init(brcmf_sdio_init);
 616 module_exit(brcmf_sdio_exit);