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
  17 #include <linux/types.h>
  18 #include <linux/netdevice.h>
  19 #include <linux/mmc/sdio.h>
  20 #include <linux/mmc/core.h>
  21 #include <linux/mmc/sdio_func.h>
  22 #include <linux/mmc/sdio_ids.h>
  23 #include <linux/mmc/card.h>
  24 #include <linux/suspend.h>
  25 #include <linux/errno.h>
  26 #include <linux/sched.h>        /* request_irq() */
  27 #include <linux/module.h>
  28 #include <linux/platform_device.h>
  29 #include <net/cfg80211.h>
  30
  31 #include <defs.h>
  32 #include <brcm_hw_ids.h>
  33 #include <brcmu_utils.h>
  34 #include <brcmu_wifi.h>
  35 #include "sdio_host.h"
  36 #include "dhd_dbg.h"
  37 #include "dhd_bus.h"
  38
  39 #define SDIO_VENDOR_ID_BROADCOM         0x02d0
  40
  41 #define DMA_ALIGN_MASK  0x03
  42
  43 #define SDIO_DEVICE_ID_BROADCOM_43241   0x4324
  44 #define SDIO_DEVICE_ID_BROADCOM_4329    0x4329
  45 #define SDIO_DEVICE_ID_BROADCOM_4330    0x4330
  46 #define SDIO_DEVICE_ID_BROADCOM_4334    0x4334
  47
  48 #define SDIO_FUNC1_BLOCKSIZE            64
  49 #define SDIO_FUNC2_BLOCKSIZE            512
  50
  51 /* devices we support, null terminated */
  52 static const struct sdio_device_id brcmf_sdmmc_ids[] = {
  53         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43241)},
  54         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
  55         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
  56         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
  57         { /* end: all zeroes */ },
  58 };
  59 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
  60
  61 #ifdef CONFIG_BRCMFMAC_SDIO_OOB
  62 static struct list_head oobirq_lh;
  63 struct brcmf_sdio_oobirq {
  64         unsigned int irq;
  65         unsigned long flags;
  66         struct list_head list;
  67 };
  68 #endif          /* CONFIG_BRCMFMAC_SDIO_OOB */
  69
  70 static bool
  71 brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
  72 {
  73         bool is_err = false;
  74 #ifdef CONFIG_PM_SLEEP
  75         is_err = atomic_read(&sdiodev->suspend);
  76 #endif
  77         return is_err;
  78 }
  79
  80 static void
  81 brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq)
  82 {
  83 #ifdef CONFIG_PM_SLEEP
  84         int retry = 0;
  85         while (atomic_read(&sdiodev->suspend) && retry++ != 30)
  86                 wait_event_timeout(*wq, false, HZ/100);
  87 #endif
  88 }
  89
  90 static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
  91                                             uint regaddr, u8 *byte)
  92 {
  93         struct sdio_func *sdfunc = sdiodev->func[0];
  94         int err_ret;
  95
  96         /*
  97          * Can only directly write to some F0 registers.
  98          * Handle F2 enable/disable and Abort command
  99          * as a special case.
 100          */
 101         if (regaddr == SDIO_CCCR_IOEx) {
 102                 sdfunc = sdiodev->func[2];
 103                 if (sdfunc) {
 104                         if (*byte & SDIO_FUNC_ENABLE_2) {
 105                                 /* Enable Function 2 */
 106                                 err_ret = sdio_enable_func(sdfunc);
 107                                 if (err_ret)
 108                                         brcmf_err("enable F2 failed:%d\n",
 109                                                   err_ret);
 110                         } else {
 111                                 /* Disable Function 2 */
 112                                 err_ret = sdio_disable_func(sdfunc);
 113                                 if (err_ret)
 114                                         brcmf_err("Disable F2 failed:%d\n",
 115                                                   err_ret);
 116                         }
 117                 }
 118         } else if ((regaddr == SDIO_CCCR_ABORT) ||
 119                    (regaddr == SDIO_CCCR_IENx)) {
 120                 sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func),
 121                                  GFP_KERNEL);
 122                 if (!sdfunc)
 123                         return -ENOMEM;
 124                 sdfunc->num = 0;
 125                 sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
 126                 kfree(sdfunc);
 127         } else if (regaddr < 0xF0) {
 128                 brcmf_err("F0 Wr:0x%02x: write disallowed\n", regaddr);
 129                 err_ret = -EPERM;
 130         } else {
 131                 sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
 132         }
 133
 134         return err_ret;
 135 }
 136
 137 int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
 138                              uint regaddr, u8 *byte)
 139 {
 140         int err_ret;
 141
 142         brcmf_dbg(SDIO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);
 143
 144         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
 145         if (brcmf_pm_resume_error(sdiodev))
 146                 return -EIO;
 147
 148         if (rw && func == 0) {
 149                 /* handle F0 separately */
 150                 err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
 151         } else {
 152                 if (rw) /* CMD52 Write */
 153                         sdio_writeb(sdiodev->func[func], *byte, regaddr,
 154                                     &err_ret);
 155                 else if (func == 0) {
 156                         *byte = sdio_f0_readb(sdiodev->func[func], regaddr,
 157                                               &err_ret);
 158                 } else {
 159                         *byte = sdio_readb(sdiodev->func[func], regaddr,
 160                                            &err_ret);
 161                 }
 162         }
 163
 164         if (err_ret)
 165                 brcmf_err("Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
 166                           rw ? "write" : "read", func, regaddr, *byte, err_ret);
 167
 168         return err_ret;
 169 }
 170
 171 int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 172                              uint rw, uint func, uint addr, u32 *word,
 173                              uint nbytes)
 174 {
 175         int err_ret = -EIO;
 176
 177         if (func == 0) {
 178                 brcmf_err("Only CMD52 allowed to F0\n");
 179                 return -EINVAL;
 180         }
 181
 182         brcmf_dbg(SDIO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
 183                   rw, func, addr, nbytes);
 184
 185         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
 186         if (brcmf_pm_resume_error(sdiodev))
 187                 return -EIO;
 188
 189         if (rw) {               /* CMD52 Write */
 190                 if (nbytes == 4)
 191                         sdio_writel(sdiodev->func[func], *word, addr,
 192                                     &err_ret);
 193                 else if (nbytes == 2)
 194                         sdio_writew(sdiodev->func[func], (*word & 0xFFFF),
 195                                     addr, &err_ret);
 196                 else
 197                         brcmf_err("Invalid nbytes: %d\n", nbytes);
 198         } else {                /* CMD52 Read */
 199                 if (nbytes == 4)
 200                         *word = sdio_readl(sdiodev->func[func], addr, &err_ret);
 201                 else if (nbytes == 2)
 202                         *word = sdio_readw(sdiodev->func[func], addr,
 203                                            &err_ret) & 0xFFFF;
 204                 else
 205                         brcmf_err("Invalid nbytes: %d\n", nbytes);
 206         }
 207
 208         if (err_ret)
 209                 brcmf_err("Failed to %s word, Err: 0x%08x\n",
 210                           rw ? "write" : "read", err_ret);
 211
 212         return err_ret;
 213 }
 214
 215 /* precondition: host controller is claimed */
 216 static int
 217 brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
 218                          uint func, uint addr, struct sk_buff *pkt, uint pktlen)
 219 {
 220         int err_ret = 0;
 221
 222         if ((write) && (!fifo)) {
 223                 err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
 224                                            ((u8 *) (pkt->data)), pktlen);
 225         } else if (write) {
 226                 err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
 227                                            ((u8 *) (pkt->data)), pktlen);
 228         } else if (fifo) {
 229                 err_ret = sdio_readsb(sdiodev->func[func],
 230                                       ((u8 *) (pkt->data)), addr, pktlen);
 231         } else {
 232                 err_ret = sdio_memcpy_fromio(sdiodev->func[func],
 233                                              ((u8 *) (pkt->data)),
 234                                              addr, pktlen);
 235         }
 236
 237         return err_ret;
 238 }
 239
 240 /*
 241  * This function takes a queue of packets. The packets on the queue
 242  * are assumed to be properly aligned by the caller.
 243  */
 244 int
 245 brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 246                           uint write, uint func, uint addr,
 247                           struct sk_buff_head *pktq)
 248 {
 249         bool fifo = (fix_inc == SDIOH_DATA_FIX);
 250         u32 SGCount = 0;
 251         int err_ret = 0;
 252
 253         struct sk_buff *pkt;
 254
 255         brcmf_dbg(SDIO, "Enter\n");
 256
 257         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
 258         if (brcmf_pm_resume_error(sdiodev))
 259                 return -EIO;
 260
 261         skb_queue_walk(pktq, pkt) {
 262                 uint pkt_len = pkt->len;
 263                 pkt_len += 3;
 264                 pkt_len &= 0xFFFFFFFC;
 265
 266                 err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
 267                                                    addr, pkt, pkt_len);
 268                 if (err_ret) {
 269                         brcmf_err("%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
 270                                   write ? "TX" : "RX", pkt, SGCount, addr,
 271                                   pkt_len, err_ret);
 272                 } else {
 273                         brcmf_dbg(SDIO, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
 274                                   write ? "TX" : "RX", pkt, SGCount, addr,
 275                                   pkt_len);
 276                 }
 277                 if (!fifo)
 278                         addr += pkt_len;
 279
 280                 SGCount++;
 281         }
 282
 283         brcmf_dbg(SDIO, "Exit\n");
 284         return err_ret;
 285 }
 286
 287 /*
 288  * This function takes a single DMA-able packet.
 289  */
 290 int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
 291                                uint fix_inc, uint write, uint func, uint addr,
 292                                struct sk_buff *pkt)
 293 {
 294         int status;
 295         uint pkt_len;
 296         bool fifo = (fix_inc == SDIOH_DATA_FIX);
 297
 298         brcmf_dbg(SDIO, "Enter\n");
 299
 300         if (pkt == NULL)
 301                 return -EINVAL;
 302         pkt_len = pkt->len;
 303
 304         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
 305         if (brcmf_pm_resume_error(sdiodev))
 306                 return -EIO;
 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_err("%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(SDIO, "%s xfr'd %p, addr=0x%05x, len=%d\n",
 318                           write ? "TX" : "RX", pkt, addr, pkt_len);
 319         }
 320
 321         return status;
 322 }
 323
 324 static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
 325 {
 326         /* read 24 bits and return valid 17 bit addr */
 327         int i, ret;
 328         u32 scratch, regdata;
 329         __le32 scratch_le;
 330         u8 *ptr = (u8 *)&scratch_le;
 331
 332         for (i = 0; i < 3; i++) {
 333                 regdata = brcmf_sdio_regrl(sdiodev, regaddr, &ret);
 334                 if (ret != 0)
 335                         brcmf_err("Can't read!\n");
 336
 337                 *ptr++ = (u8) regdata;
 338                 regaddr++;
 339         }
 340
 341         /* Only the lower 17-bits are valid */
 342         scratch = le32_to_cpu(scratch_le);
 343         scratch &= 0x0001FFFF;
 344         return scratch;
 345 }
 346
 347 static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
 348 {
 349         int err_ret;
 350         u32 fbraddr;
 351         u8 func;
 352
 353         brcmf_dbg(SDIO, "\n");
 354
 355         /* Get the Card's common CIS address */
 356         sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev,
 357                                                            SDIO_CCCR_CIS);
 358         brcmf_dbg(SDIO, "Card's Common CIS Ptr = 0x%x\n",
 359                   sdiodev->func_cis_ptr[0]);
 360
 361         /* Get the Card's function CIS (for each function) */
 362         for (fbraddr = SDIO_FBR_BASE(1), func = 1;
 363              func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
 364                 sdiodev->func_cis_ptr[func] =
 365                     brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr);
 366                 brcmf_dbg(SDIO, "Function %d CIS Ptr = 0x%x\n",
 367                           func, sdiodev->func_cis_ptr[func]);
 368         }
 369
 370         /* Enable Function 1 */
 371         err_ret = sdio_enable_func(sdiodev->func[1]);
 372         if (err_ret)
 373                 brcmf_err("Failed to enable F1 Err: 0x%08x\n", err_ret);
 374
 375         return false;
 376 }
 377
 378 /*
 379  *      Public entry points & extern's
 380  */
 381 int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
 382 {
 383         int err_ret = 0;
 384
 385         brcmf_dbg(SDIO, "\n");
 386
 387         sdiodev->num_funcs = 2;
 388
 389         sdio_claim_host(sdiodev->func[1]);
 390
 391         err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE);
 392         if (err_ret) {
 393                 brcmf_err("Failed to set F1 blocksize\n");
 394                 goto out;
 395         }
 396
 397         err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE);
 398         if (err_ret) {
 399                 brcmf_err("Failed to set F2 blocksize\n");
 400                 goto out;
 401         }
 402
 403         brcmf_sdioh_enablefuncs(sdiodev);
 404
 405 out:
 406         sdio_release_host(sdiodev->func[1]);
 407         brcmf_dbg(SDIO, "Done\n");
 408         return err_ret;
 409 }
 410
 411 void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
 412 {
 413         brcmf_dbg(SDIO, "\n");
 414
 415         /* Disable Function 2 */
 416         sdio_claim_host(sdiodev->func[2]);
 417         sdio_disable_func(sdiodev->func[2]);
 418         sdio_release_host(sdiodev->func[2]);
 419
 420         /* Disable Function 1 */
 421         sdio_claim_host(sdiodev->func[1]);
 422         sdio_disable_func(sdiodev->func[1]);
 423         sdio_release_host(sdiodev->func[1]);
 424
 425 }
 426
 427 #ifdef CONFIG_BRCMFMAC_SDIO_OOB
 428 static int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
 429 {
 430         struct brcmf_sdio_oobirq *oobirq_entry;
 431
 432         if (list_empty(&oobirq_lh)) {
 433                 brcmf_err("no valid oob irq resource\n");
 434                 return -ENXIO;
 435         }
 436
 437         oobirq_entry = list_first_entry(&oobirq_lh, struct brcmf_sdio_oobirq,
 438                                         list);
 439
 440         sdiodev->irq = oobirq_entry->irq;
 441         sdiodev->irq_flags = oobirq_entry->flags;
 442         list_del(&oobirq_entry->list);
 443         kfree(oobirq_entry);
 444
 445         return 0;
 446 }
 447 #else
 448 static inline int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
 449 {
 450         return 0;
 451 }
 452 #endif          /* CONFIG_BRCMFMAC_SDIO_OOB */
 453
 454 static int brcmf_ops_sdio_probe(struct sdio_func *func,
 455                                 const struct sdio_device_id *id)
 456 {
 457         int err;
 458         struct brcmf_sdio_dev *sdiodev;
 459         struct brcmf_bus *bus_if;
 460
 461         brcmf_dbg(SDIO, "Enter\n");
 462         brcmf_dbg(SDIO, "Class=%x\n", func->class);
 463         brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor);
 464         brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
 465         brcmf_dbg(SDIO, "Function#: %d\n", func->num);
 466
 467         /* Consume func num 1 but dont do anything with it. */
 468         if (func->num == 1)
 469                 return 0;
 470
 471         /* Ignore anything but func 2 */
 472         if (func->num != 2)
 473                 return -ENODEV;
 474
 475         bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
 476         if (!bus_if)
 477                 return -ENOMEM;
 478         sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
 479         if (!sdiodev) {
 480                 kfree(bus_if);
 481                 return -ENOMEM;
 482         }
 483
 484         sdiodev->func[0] = func->card->sdio_func[0];
 485         sdiodev->func[1] = func->card->sdio_func[0];
 486         sdiodev->func[2] = func;
 487
 488         sdiodev->bus_if = bus_if;
 489         bus_if->bus_priv.sdio = sdiodev;
 490         bus_if->align = BRCMF_SDALIGN;
 491         dev_set_drvdata(&func->dev, bus_if);
 492         dev_set_drvdata(&sdiodev->func[1]->dev, bus_if);
 493         sdiodev->dev = &sdiodev->func[1]->dev;
 494
 495         atomic_set(&sdiodev->suspend, false);
 496         init_waitqueue_head(&sdiodev->request_byte_wait);
 497         init_waitqueue_head(&sdiodev->request_word_wait);
 498         init_waitqueue_head(&sdiodev->request_chain_wait);
 499         init_waitqueue_head(&sdiodev->request_buffer_wait);
 500         err = brcmf_sdio_getintrcfg(sdiodev);
 501         if (err)
 502                 goto fail;
 503
 504         brcmf_dbg(SDIO, "F2 found, calling brcmf_sdio_probe...\n");
 505         err = brcmf_sdio_probe(sdiodev);
 506         if (err) {
 507                 brcmf_err("F2 error, probe failed %d...\n", err);
 508                 goto fail;
 509         }
 510         brcmf_dbg(SDIO, "F2 init completed...\n");
 511         return 0;
 512
 513 fail:
 514         dev_set_drvdata(&func->dev, NULL);
 515         dev_set_drvdata(&sdiodev->func[1]->dev, NULL);
 516         kfree(sdiodev);
 517         kfree(bus_if);
 518         return err;
 519 }
 520
 521 static void brcmf_ops_sdio_remove(struct sdio_func *func)
 522 {
 523         struct brcmf_bus *bus_if;
 524         struct brcmf_sdio_dev *sdiodev;
 525
 526         brcmf_dbg(SDIO, "Enter\n");
 527         brcmf_dbg(SDIO, "sdio vendor ID: 0x%04x\n", func->vendor);
 528         brcmf_dbg(SDIO, "sdio device ID: 0x%04x\n", func->device);
 529         brcmf_dbg(SDIO, "Function: %d\n", func->num);
 530
 531         if (func->num != 1 && func->num != 2)
 532                 return;
 533
 534         bus_if = dev_get_drvdata(&func->dev);
 535         if (bus_if) {
 536                 sdiodev = bus_if->bus_priv.sdio;
 537                 brcmf_sdio_remove(sdiodev);
 538
 539                 dev_set_drvdata(&sdiodev->func[1]->dev, NULL);
 540                 dev_set_drvdata(&sdiodev->func[2]->dev, NULL);
 541
 542                 kfree(bus_if);
 543                 kfree(sdiodev);
 544         }
 545
 546         brcmf_dbg(SDIO, "Exit\n");
 547 }
 548
 549 #ifdef CONFIG_PM_SLEEP
 550 static int brcmf_sdio_suspend(struct device *dev)
 551 {
 552         mmc_pm_flag_t sdio_flags;
 553         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 554         struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 555         int ret = 0;
 556
 557         brcmf_dbg(SDIO, "\n");
 558
 559         atomic_set(&sdiodev->suspend, true);
 560
 561         sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
 562         if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
 563                 brcmf_err("Host can't keep power while suspended\n");
 564                 return -EINVAL;
 565         }
 566
 567         ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
 568         if (ret) {
 569                 brcmf_err("Failed to set pm_flags\n");
 570                 return ret;
 571         }
 572
 573         brcmf_sdio_wdtmr_enable(sdiodev, false);
 574
 575         return ret;
 576 }
 577
 578 static int brcmf_sdio_resume(struct device *dev)
 579 {
 580         struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 581         struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
 582
 583         brcmf_sdio_wdtmr_enable(sdiodev, true);
 584         atomic_set(&sdiodev->suspend, false);
 585         return 0;
 586 }
 587
 588 static const struct dev_pm_ops brcmf_sdio_pm_ops = {
 589         .suspend        = brcmf_sdio_suspend,
 590         .resume         = brcmf_sdio_resume,
 591 };
 592 #endif  /* CONFIG_PM_SLEEP */
 593
 594 static struct sdio_driver brcmf_sdmmc_driver = {
 595         .probe = brcmf_ops_sdio_probe,
 596         .remove = brcmf_ops_sdio_remove,
 597         .name = "brcmfmac",
 598         .id_table = brcmf_sdmmc_ids,
 599 #ifdef CONFIG_PM_SLEEP
 600         .drv = {
 601                 .pm = &brcmf_sdio_pm_ops,
 602         },
 603 #endif  /* CONFIG_PM_SLEEP */
 604 };
 605
 606 #ifdef CONFIG_BRCMFMAC_SDIO_OOB
 607 static int brcmf_sdio_pd_probe(struct platform_device *pdev)
 608 {
 609         struct resource *res;
 610         struct brcmf_sdio_oobirq *oobirq_entry;
 611         int i, ret;
 612
 613         INIT_LIST_HEAD(&oobirq_lh);
 614
 615         for (i = 0; ; i++) {
 616                 res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
 617                 if (!res)
 618                         break;
 619
 620                 oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
 621                                        GFP_KERNEL);
 622                 if (!oobirq_entry)
 623                         return -ENOMEM;
 624                 oobirq_entry->irq = res->start;
 625                 oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
 626                 list_add_tail(&oobirq_entry->list, &oobirq_lh);
 627         }
 628         if (i == 0)
 629                 return -ENXIO;
 630
 631         ret = sdio_register_driver(&brcmf_sdmmc_driver);
 632
 633         if (ret)
 634                 brcmf_err("sdio_register_driver failed: %d\n", ret);
 635
 636         return ret;
 637 }
 638
 639 static struct platform_driver brcmf_sdio_pd = {
 640         .probe          = brcmf_sdio_pd_probe,
 641         .driver         = {
 642                 .name   = "brcmf_sdio_pd"
 643         }
 644 };
 645
 646 void brcmf_sdio_exit(void)
 647 {
 648         brcmf_dbg(SDIO, "Enter\n");
 649
 650         sdio_unregister_driver(&brcmf_sdmmc_driver);
 651
 652         platform_driver_unregister(&brcmf_sdio_pd);
 653 }
 654
 655 void brcmf_sdio_init(void)
 656 {
 657         int ret;
 658
 659         brcmf_dbg(SDIO, "Enter\n");
 660
 661         ret = platform_driver_register(&brcmf_sdio_pd);
 662
 663         if (ret)
 664                 brcmf_err("platform_driver_register failed: %d\n", ret);
 665 }
 666 #else
 667 void brcmf_sdio_exit(void)
 668 {
 669         brcmf_dbg(SDIO, "Enter\n");
 670
 671         sdio_unregister_driver(&brcmf_sdmmc_driver);
 672 }
 673
 674 void brcmf_sdio_init(void)
 675 {
 676         int ret;
 677
 678         brcmf_dbg(SDIO, "Enter\n");
 679
 680         ret = sdio_register_driver(&brcmf_sdmmc_driver);
 681
 682         if (ret)
 683                 brcmf_err("sdio_register_driver failed: %d\n", ret);
 684 }
 685 #endif          /* CONFIG_BRCMFMAC_SDIO_OOB */