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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  18
  19 #include <linux/types.h>
  20 #include <linux/netdevice.h>
  21 #include <linux/mmc/sdio.h>
  22 #include <linux/mmc/core.h>
  23 #include <linux/mmc/sdio_func.h>
  24 #include <linux/mmc/sdio_ids.h>
  25 #include <linux/mmc/card.h>
  26 #include <linux/suspend.h>
  27 #include <linux/errno.h>
  28 #include <linux/sched.h>        /* request_irq() */
  29 #include <linux/module.h>
  30 #include <linux/platform_device.h>
  31 #include <net/cfg80211.h>
  32
  33 #include <defs.h>
  34 #include <brcm_hw_ids.h>
  35 #include <brcmu_utils.h>
  36 #include <brcmu_wifi.h>
  37 #include "sdio_host.h"
  38 #include "dhd_dbg.h"
  39 #include "dhd_bus.h"
  40
  41 #define SDIO_VENDOR_ID_BROADCOM         0x02d0
  42
  43 #define DMA_ALIGN_MASK  0x03
  44
  45 #define SDIO_DEVICE_ID_BROADCOM_43241   0x4324
  46 #define SDIO_DEVICE_ID_BROADCOM_4329    0x4329
  47 #define SDIO_DEVICE_ID_BROADCOM_4330    0x4330
  48 #define SDIO_DEVICE_ID_BROADCOM_4334    0x4334
  49
  50 #define SDIO_FUNC1_BLOCKSIZE            64
  51 #define SDIO_FUNC2_BLOCKSIZE            512
  52
  53 /* devices we support, null terminated */
  54 static const struct sdio_device_id brcmf_sdmmc_ids[] = {
  55         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43241)},
  56         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
  57         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
  58         {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
  59         { /* end: all zeroes */ },
  60 };
  61 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
  62
  63 #ifdef CONFIG_BRCMFMAC_SDIO_OOB
  64 static struct list_head oobirq_lh;
  65 struct brcmf_sdio_oobirq {
  66         unsigned int irq;
  67         unsigned long flags;
  68         struct list_head list;
  69 };
  70 #endif          /* CONFIG_BRCMFMAC_SDIO_OOB */
  71
  72 static bool
  73 brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
  74 {
  75         bool is_err = false;
  76 #ifdef CONFIG_PM_SLEEP
  77         is_err = atomic_read(&sdiodev->suspend);
  78 #endif
  79         return is_err;
  80 }
  81
  82 static void
  83 brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq)
  84 {
  85 #ifdef CONFIG_PM_SLEEP
  86         int retry = 0;
  87         while (atomic_read(&sdiodev->suspend) && retry++ != 30)
  88                 wait_event_timeout(*wq, false, HZ/100);
  89 #endif
  90 }
  91
  92 static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
  93                                             uint regaddr, u8 *byte)
  94 {
  95         struct sdio_func *sdfunc = sdiodev->func[0];
  96         int err_ret;
  97
  98         /*
  99          * Can only directly write to some F0 registers.
 100          * Handle F2 enable/disable and Abort command
 101          * as a special case.
 102          */
 103         if (regaddr == SDIO_CCCR_IOEx) {
 104                 sdfunc = sdiodev->func[2];
 105                 if (sdfunc) {
 106                         sdio_claim_host(sdfunc);
 107                         if (*byte & SDIO_FUNC_ENABLE_2) {
 108                                 /* Enable Function 2 */
 109                                 err_ret = sdio_enable_func(sdfunc);
 110                                 if (err_ret)
 111                                         brcmf_dbg(ERROR,
 112                                                   "enable F2 failed:%d\n",
 113                                                   err_ret);
 114                         } else {
 115                                 /* Disable Function 2 */
 116                                 err_ret = sdio_disable_func(sdfunc);
 117                                 if (err_ret)
 118                                         brcmf_dbg(ERROR,
 119                                                   "Disable F2 failed:%d\n",
 120                                                   err_ret);
 121                         }
 122                         sdio_release_host(sdfunc);
 123                 }
 124         } else if ((regaddr == SDIO_CCCR_ABORT) ||
 125                    (regaddr == SDIO_CCCR_IENx)) {
 126                 sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func),
 127                                  GFP_KERNEL);
 128                 if (!sdfunc)
 129                         return -ENOMEM;
 130                 sdfunc->num = 0;
 131                 sdio_claim_host(sdfunc);
 132                 sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
 133                 sdio_release_host(sdfunc);
 134                 kfree(sdfunc);
 135         } else if (regaddr < 0xF0) {
 136                 brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr);
 137                 err_ret = -EPERM;
 138         } else {
 139                 sdio_claim_host(sdfunc);
 140                 sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
 141                 sdio_release_host(sdfunc);
 142         }
 143
 144         return err_ret;
 145 }
 146
 147 int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
 148                              uint regaddr, u8 *byte)
 149 {
 150         int err_ret;
 151
 152         brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);
 153
 154         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
 155         if (brcmf_pm_resume_error(sdiodev))
 156                 return -EIO;
 157
 158         if (rw && func == 0) {
 159                 /* handle F0 separately */
 160                 err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
 161         } else {
 162                 sdio_claim_host(sdiodev->func[func]);
 163                 if (rw) /* CMD52 Write */
 164                         sdio_writeb(sdiodev->func[func], *byte, regaddr,
 165                                     &err_ret);
 166                 else if (func == 0) {
 167                         *byte = sdio_f0_readb(sdiodev->func[func], regaddr,
 168                                               &err_ret);
 169                 } else {
 170                         *byte = sdio_readb(sdiodev->func[func], regaddr,
 171                                            &err_ret);
 172                 }
 173                 sdio_release_host(sdiodev->func[func]);
 174         }
 175
 176         if (err_ret)
 177                 brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
 178                           rw ? "write" : "read", func, regaddr, *byte, err_ret);
 179
 180         return err_ret;
 181 }
 182
 183 int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
 184                              uint rw, uint func, uint addr, u32 *word,
 185                              uint nbytes)
 186 {
 187         int err_ret = -EIO;
 188
 189         if (func == 0) {
 190                 brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n");
 191                 return -EINVAL;
 192         }
 193
 194         brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
 195                   rw, func, addr, nbytes);
 196
 197         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
 198         if (brcmf_pm_resume_error(sdiodev))
 199                 return -EIO;
 200         /* Claim host controller */
 201         sdio_claim_host(sdiodev->func[func]);
 202
 203         if (rw) {               /* CMD52 Write */
 204                 if (nbytes == 4)
 205                         sdio_writel(sdiodev->func[func], *word, addr,
 206                                     &err_ret);
 207                 else if (nbytes == 2)
 208                         sdio_writew(sdiodev->func[func], (*word & 0xFFFF),
 209                                     addr, &err_ret);
 210                 else
 211                         brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
 212         } else {                /* CMD52 Read */
 213                 if (nbytes == 4)
 214                         *word = sdio_readl(sdiodev->func[func], addr, &err_ret);
 215                 else if (nbytes == 2)
 216                         *word = sdio_readw(sdiodev->func[func], addr,
 217                                            &err_ret) & 0xFFFF;
 218                 else
 219                         brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
 220         }
 221
 222         /* Release host controller */
 223         sdio_release_host(sdiodev->func[func]);
 224
 225         if (err_ret)
 226                 brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n",
 227                           rw ? "write" : "read", err_ret);
 228
 229         return err_ret;
 230 }
 231
 232 /* precondition: host controller is claimed */
 233 static int
 234 brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
 235                          uint func, uint addr, struct sk_buff *pkt, uint pktlen)
 236 {
 237         int err_ret = 0;
 238
 239         if ((write) && (!fifo)) {
 240                 err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
 241                                            ((u8 *) (pkt->data)), pktlen);
 242         } else if (write) {
 243                 err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
 244                                            ((u8 *) (pkt->data)), pktlen);
 245         } else if (fifo) {
 246                 err_ret = sdio_readsb(sdiodev->func[func],
 247                                       ((u8 *) (pkt->data)), addr, pktlen);
 248         } else {
 249                 err_ret = sdio_memcpy_fromio(sdiodev->func[func],
 250                                              ((u8 *) (pkt->data)),
 251                                              addr, pktlen);
 252         }
 253
 254         return err_ret;
 255 }
 256
 257 /*
 258  * This function takes a queue of packets. The packets on the queue
 259  * are assumed to be properly aligned by the caller.
 260  */
 261 int
 262 brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
 263                           uint write, uint func, uint addr,
 264                           struct sk_buff_head *pktq)
 265 {
 266         bool fifo = (fix_inc == SDIOH_DATA_FIX);
 267         u32 SGCount = 0;
 268         int err_ret = 0;
 269
 270         struct sk_buff *pkt;
 271
 272         brcmf_dbg(TRACE, "Enter\n");
 273
 274         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
 275         if (brcmf_pm_resume_error(sdiodev))
 276                 return -EIO;
 277
 278         /* Claim host controller */
 279         sdio_claim_host(sdiodev->func[func]);
 280
 281         skb_queue_walk(pktq, pkt) {
 282                 uint pkt_len = pkt->len;
 283                 pkt_len += 3;
 284                 pkt_len &= 0xFFFFFFFC;
 285
 286                 err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
 287                                                    addr, pkt, pkt_len);
 288                 if (err_ret) {
 289                         brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
 290                                   write ? "TX" : "RX", pkt, SGCount, addr,
 291                                   pkt_len, err_ret);
 292                 } else {
 293                         brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
 294                                   write ? "TX" : "RX", pkt, SGCount, addr,
 295                                   pkt_len);
 296                 }
 297                 if (!fifo)
 298                         addr += pkt_len;
 299
 300                 SGCount++;
 301         }
 302
 303         /* Release host controller */
 304         sdio_release_host(sdiodev->func[func]);
 305
 306         brcmf_dbg(TRACE, "Exit\n");
 307         return err_ret;
 308 }
 309
 310 /*
 311  * This function takes a single DMA-able packet.
 312  */
 313 int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
 314                                uint fix_inc, uint write, uint func, uint addr,
 315                                struct sk_buff *pkt)
 316 {
 317         int status;
 318         uint pkt_len;
 319         bool fifo = (fix_inc == SDIOH_DATA_FIX);
 320
 321         brcmf_dbg(TRACE, "Enter\n");
 322
 323         if (pkt == NULL)
 324                 return -EINVAL;
 325         pkt_len = pkt->len;
 326
 327         brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
 328         if (brcmf_pm_resume_error(sdiodev))
 329                 return -EIO;
 330
 331         /* Claim host controller */
 332         sdio_claim_host(sdiodev->func[func]);
 333
 334         pkt_len += 3;
 335         pkt_len &= (uint)~3;
 336
 337         status = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
 338                                            addr, pkt, pkt_len);
 339         if (status) {
 340                 brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
 341                           write ? "TX" : "RX", pkt, addr, pkt_len, status);
 342         } else {
 343                 brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n",
 344                           write ? "TX" : "RX", pkt, addr, pkt_len);
 345         }
 346
 347         /* Release host controller */
 348         sdio_release_host(sdiodev->func[func]);
 349
 350         return status;
 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, ret;
 357         u32 scratch, regdata;
 358         __le32 scratch_le;
 359         u8 *ptr = (u8 *)&scratch_le;
 360
 361         for (i = 0; i < 3; i++) {
 362                 regdata = brcmf_sdio_regrl(sdiodev, regaddr, &ret);
 363                 if (ret != 0)
 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 #ifdef CONFIG_BRCMFMAC_SDIO_OOB
 460 static int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
 461 {
 462         struct brcmf_sdio_oobirq *oobirq_entry;
 463
 464         if (list_empty(&oobirq_lh)) {
 465                 brcmf_dbg(ERROR, "no valid oob irq resource\n");
 466                 return -ENXIO;
 467         }
 468
 469         oobirq_entry = list_first_entry(&oobirq_lh, struct brcmf_sdio_oobirq,
 470                                         list);
 471
 472         sdiodev->irq = oobirq_entry->irq;
 473         sdiodev->irq_flags = oobirq_entry->flags;
 474         list_del(&oobirq_entry->list);
 475         kfree(oobirq_entry);
 476
 477         return 0;
 478 }
 479 #else
 480 static inline int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
 481 {
 482         return 0;
 483 }
 484 #endif          /* CONFIG_BRCMFMAC_SDIO_OOB */
 485
 486 static int brcmf_ops_sdio_probe(struct sdio_func *func,
 487                               const struct sdio_device_id *id)
 488 {
 489         int ret = 0;
 490         struct brcmf_sdio_dev *sdiodev;
 491         struct brcmf_bus *bus_if;
 492
 493         brcmf_dbg(TRACE, "Enter\n");
 494         brcmf_dbg(TRACE, "func->class=%x\n", func->class);
 495         brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor);
 496         brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device);
 497         brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num);
 498
 499         if (func->num == 1) {
 500                 if (dev_get_drvdata(&func->card->dev)) {
 501                         brcmf_dbg(ERROR, "card private drvdata occupied\n");
 502                         return -ENXIO;
 503                 }
 504                 bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
 505                 if (!bus_if)
 506                         return -ENOMEM;
 507                 sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
 508                 if (!sdiodev) {
 509                         kfree(bus_if);
 510                         return -ENOMEM;
 511                 }
 512                 sdiodev->func[0] = func;
 513                 sdiodev->func[1] = func;
 514                 sdiodev->bus_if = bus_if;
 515                 bus_if->bus_priv.sdio = sdiodev;
 516                 bus_if->type = SDIO_BUS;
 517                 bus_if->align = BRCMF_SDALIGN;
 518                 dev_set_drvdata(&func->card->dev, sdiodev);
 519
 520                 atomic_set(&sdiodev->suspend, false);
 521                 init_waitqueue_head(&sdiodev->request_byte_wait);
 522                 init_waitqueue_head(&sdiodev->request_word_wait);
 523                 init_waitqueue_head(&sdiodev->request_chain_wait);
 524                 init_waitqueue_head(&sdiodev->request_buffer_wait);
 525         }
 526
 527         if (func->num == 2) {
 528                 sdiodev = dev_get_drvdata(&func->card->dev);
 529                 if ((!sdiodev) || (sdiodev->func[1]->card != func->card))
 530                         return -ENODEV;
 531
 532                 ret = brcmf_sdio_getintrcfg(sdiodev);
 533                 if (ret)
 534                         return ret;
 535                 sdiodev->func[2] = func;
 536
 537                 bus_if = sdiodev->bus_if;
 538                 sdiodev->dev = &func->dev;
 539                 dev_set_drvdata(&func->dev, bus_if);
 540
 541                 brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n");
 542                 ret = brcmf_sdio_probe(sdiodev);
 543         }
 544
 545         return ret;
 546 }
 547
 548 static void brcmf_ops_sdio_remove(struct sdio_func *func)
 549 {
 550         struct brcmf_bus *bus_if;
 551         struct brcmf_sdio_dev *sdiodev;
 552         brcmf_dbg(TRACE, "Enter\n");
 553         brcmf_dbg(INFO, "func->class=%x\n", func->class);
 554         brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor);
 555         brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device);
 556         brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num);
 557
 558         if (func->num == 2) {
 559                 bus_if = dev_get_drvdata(&func->dev);
 560                 sdiodev = bus_if->bus_priv.sdio;
 561                 brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n");
 562                 brcmf_sdio_remove(sdiodev);
 563                 dev_set_drvdata(&func->card->dev, NULL);
 564                 dev_set_drvdata(&func->dev, NULL);
 565                 kfree(bus_if);
 566                 kfree(sdiodev);
 567         }
 568 }
 569
 570 #ifdef CONFIG_PM_SLEEP
 571 static int brcmf_sdio_suspend(struct device *dev)
 572 {
 573         mmc_pm_flag_t sdio_flags;
 574         struct sdio_func *func = dev_to_sdio_func(dev);
 575         struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
 576         int ret = 0;
 577
 578         brcmf_dbg(TRACE, "\n");
 579
 580         atomic_set(&sdiodev->suspend, true);
 581
 582         sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
 583         if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
 584                 brcmf_dbg(ERROR, "Host can't keep power while suspended\n");
 585                 return -EINVAL;
 586         }
 587
 588         ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
 589         if (ret) {
 590                 brcmf_dbg(ERROR, "Failed to set pm_flags\n");
 591                 return ret;
 592         }
 593
 594         brcmf_sdio_wdtmr_enable(sdiodev, false);
 595
 596         return ret;
 597 }
 598
 599 static int brcmf_sdio_resume(struct device *dev)
 600 {
 601         struct sdio_func *func = dev_to_sdio_func(dev);
 602         struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
 603
 604         brcmf_sdio_wdtmr_enable(sdiodev, true);
 605         atomic_set(&sdiodev->suspend, false);
 606         return 0;
 607 }
 608
 609 static const struct dev_pm_ops brcmf_sdio_pm_ops = {
 610         .suspend        = brcmf_sdio_suspend,
 611         .resume         = brcmf_sdio_resume,
 612 };
 613 #endif  /* CONFIG_PM_SLEEP */
 614
 615 static struct sdio_driver brcmf_sdmmc_driver = {
 616         .probe = brcmf_ops_sdio_probe,
 617         .remove = brcmf_ops_sdio_remove,
 618         .name = "brcmfmac",
 619         .id_table = brcmf_sdmmc_ids,
 620 #ifdef CONFIG_PM_SLEEP
 621         .drv = {
 622                 .pm = &brcmf_sdio_pm_ops,
 623         },
 624 #endif  /* CONFIG_PM_SLEEP */
 625 };
 626
 627 #ifdef CONFIG_BRCMFMAC_SDIO_OOB
 628 static int brcmf_sdio_pd_probe(struct platform_device *pdev)
 629 {
 630         struct resource *res;
 631         struct brcmf_sdio_oobirq *oobirq_entry;
 632         int i, ret;
 633
 634         INIT_LIST_HEAD(&oobirq_lh);
 635
 636         for (i = 0; ; i++) {
 637                 res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
 638                 if (!res)
 639                         break;
 640
 641                 oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
 642                                        GFP_KERNEL);
 643                 if (!oobirq_entry)
 644                         return -ENOMEM;
 645                 oobirq_entry->irq = res->start;
 646                 oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
 647                 list_add_tail(&oobirq_entry->list, &oobirq_lh);
 648         }
 649         if (i == 0)
 650                 return -ENXIO;
 651
 652         ret = sdio_register_driver(&brcmf_sdmmc_driver);
 653
 654         if (ret)
 655                 brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
 656
 657         return ret;
 658 }
 659
 660 static struct platform_driver brcmf_sdio_pd = {
 661         .probe          = brcmf_sdio_pd_probe,
 662         .driver         = {
 663                 .name   = "brcmf_sdio_pd"
 664         }
 665 };
 666
 667 void brcmf_sdio_exit(void)
 668 {
 669         brcmf_dbg(TRACE, "Enter\n");
 670
 671         sdio_unregister_driver(&brcmf_sdmmc_driver);
 672
 673         platform_driver_unregister(&brcmf_sdio_pd);
 674 }
 675
 676 void brcmf_sdio_init(void)
 677 {
 678         int ret;
 679
 680         brcmf_dbg(TRACE, "Enter\n");
 681
 682         ret = platform_driver_register(&brcmf_sdio_pd);
 683
 684         if (ret)
 685                 brcmf_dbg(ERROR, "platform_driver_register failed: %d\n", ret);
 686 }
 687 #else
 688 void brcmf_sdio_exit(void)
 689 {
 690         brcmf_dbg(TRACE, "Enter\n");
 691
 692         sdio_unregister_driver(&brcmf_sdmmc_driver);
 693 }
 694
 695 void brcmf_sdio_init(void)
 696 {
 697         int ret;
 698
 699         brcmf_dbg(TRACE, "Enter\n");
 700
 701         ret = sdio_register_driver(&brcmf_sdmmc_driver);
 702
 703         if (ret)
 704                 brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
 705 }
 706 #endif          /* CONFIG_BRCMFMAC_SDIO_OOB */