bcmsdh_sdmmc.c

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/*
 * Copyright (c) 2010 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/core.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/card.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/sched.h>    /* request_irq() */
#include <linux/module.h>
#include <linux/platform_device.h>
#include <net/cfg80211.h>

#include <defs.h>
#include <brcm_hw_ids.h>
#include <brcmu_utils.h>
#include <brcmu_wifi.h>
#include "sdio_host.h"
#include "dhd_dbg.h"
#include "dhd_bus.h"

#define SDIO_VENDOR_ID_BROADCOM     0x02d0

#define DMA_ALIGN_MASK  0x03

#define SDIO_DEVICE_ID_BROADCOM_43241   0x4324
#define SDIO_DEVICE_ID_BROADCOM_4329    0x4329
#define SDIO_DEVICE_ID_BROADCOM_4330    0x4330
#define SDIO_DEVICE_ID_BROADCOM_4334    0x4334

#define SDIO_FUNC1_BLOCKSIZE        64
#define SDIO_FUNC2_BLOCKSIZE        512

/* devices we support, null terminated */
static const struct sdio_device_id brcmf_sdmmc_ids[] = {
    {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43241)},
    {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
    {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
    {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
    { /* end: all zeroes */ },
};
MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);

#ifdef CONFIG_BRCMFMAC_SDIO_OOB
static struct list_head oobirq_lh;
struct brcmf_sdio_oobirq {
    unsigned int irq;
    unsigned long flags;
    struct list_head list;
};
#endif      /* CONFIG_BRCMFMAC_SDIO_OOB */

static bool
brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev)
{
    bool is_err = false;
#ifdef CONFIG_PM_SLEEP
    is_err = atomic_read(&sdiodev->suspend);
#endif
    return is_err;
}

static void
brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev, wait_queue_head_t *wq)
{
#ifdef CONFIG_PM_SLEEP
    int retry = 0;
    while (atomic_read(&sdiodev->suspend) && retry++ != 30)
        wait_event_timeout(*wq, false, HZ/100);
#endif
}

static inline int brcmf_sdioh_f0_write_byte(struct brcmf_sdio_dev *sdiodev,
                        uint regaddr, u8 *byte)
{
    struct sdio_func *sdfunc = sdiodev->func[0];
    int err_ret;

    /*
     * Can only directly write to some F0 registers.
     * Handle F2 enable/disable and Abort command
     * as a special case.
     */
    if (regaddr == SDIO_CCCR_IOEx) {
        sdfunc = sdiodev->func[2];
        if (sdfunc) {
            if (*byte & SDIO_FUNC_ENABLE_2) {
                /* Enable Function 2 */
                err_ret = sdio_enable_func(sdfunc);
                if (err_ret)
                    brcmf_dbg(ERROR,
                          "enable F2 failed:%d\n",
                          err_ret);
            } else {
                /* Disable Function 2 */
                err_ret = sdio_disable_func(sdfunc);
                if (err_ret)
                    brcmf_dbg(ERROR,
                          "Disable F2 failed:%d\n",
                          err_ret);
            }
        }
    } else if ((regaddr == SDIO_CCCR_ABORT) ||
           (regaddr == SDIO_CCCR_IENx)) {
        sdfunc = kmemdup(sdiodev->func[0], sizeof(struct sdio_func),
                 GFP_KERNEL);
        if (!sdfunc)
            return -ENOMEM;
        sdfunc->num = 0;
        sdio_writeb(sdfunc, *byte, regaddr, &err_ret);
        kfree(sdfunc);
    } else if (regaddr < 0xF0) {
        brcmf_dbg(ERROR, "F0 Wr:0x%02x: write disallowed\n", regaddr);
        err_ret = -EPERM;
    } else {
        sdio_f0_writeb(sdfunc, *byte, regaddr, &err_ret);
    }

    return err_ret;
}

int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint func,
                 uint regaddr, u8 *byte)
{
    int err_ret;

    brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x\n", rw, func, regaddr);

    brcmf_pm_resume_wait(sdiodev, &sdiodev->request_byte_wait);
    if (brcmf_pm_resume_error(sdiodev))
        return -EIO;

    if (rw && func == 0) {
        /* handle F0 separately */
        err_ret = brcmf_sdioh_f0_write_byte(sdiodev, regaddr, byte);
    } else {
        if (rw) /* CMD52 Write */
            sdio_writeb(sdiodev->func[func], *byte, regaddr,
                    &err_ret);
        else if (func == 0) {
            *byte = sdio_f0_readb(sdiodev->func[func], regaddr,
                          &err_ret);
        } else {
            *byte = sdio_readb(sdiodev->func[func], regaddr,
                       &err_ret);
        }
    }

    if (err_ret)
        brcmf_dbg(ERROR, "Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
              rw ? "write" : "read", func, regaddr, *byte, err_ret);

    return err_ret;
}

int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
                 uint rw, uint func, uint addr, u32 *word,
                 uint nbytes)
{
    int err_ret = -EIO;

    if (func == 0) {
        brcmf_dbg(ERROR, "Only CMD52 allowed to F0\n");
        return -EINVAL;
    }

    brcmf_dbg(INFO, "rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
          rw, func, addr, nbytes);

    brcmf_pm_resume_wait(sdiodev, &sdiodev->request_word_wait);
    if (brcmf_pm_resume_error(sdiodev))
        return -EIO;

    if (rw) {       /* CMD52 Write */
        if (nbytes == 4)
            sdio_writel(sdiodev->func[func], *word, addr,
                    &err_ret);
        else if (nbytes == 2)
            sdio_writew(sdiodev->func[func], (*word & 0xFFFF),
                    addr, &err_ret);
        else
            brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
    } else {        /* CMD52 Read */
        if (nbytes == 4)
            *word = sdio_readl(sdiodev->func[func], addr, &err_ret);
        else if (nbytes == 2)
            *word = sdio_readw(sdiodev->func[func], addr,
                       &err_ret) & 0xFFFF;
        else
            brcmf_dbg(ERROR, "Invalid nbytes: %d\n", nbytes);
    }

    if (err_ret)
        brcmf_dbg(ERROR, "Failed to %s word, Err: 0x%08x\n",
              rw ? "write" : "read", err_ret);

    return err_ret;
}

/* precondition: host controller is claimed */
static int
brcmf_sdioh_request_data(struct brcmf_sdio_dev *sdiodev, uint write, bool fifo,
             uint func, uint addr, struct sk_buff *pkt, uint pktlen)
{
    int err_ret = 0;

    if ((write) && (!fifo)) {
        err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
                       ((u8 *) (pkt->data)), pktlen);
    } else if (write) {
        err_ret = sdio_memcpy_toio(sdiodev->func[func], addr,
                       ((u8 *) (pkt->data)), pktlen);
    } else if (fifo) {
        err_ret = sdio_readsb(sdiodev->func[func],
                      ((u8 *) (pkt->data)), addr, pktlen);
    } else {
        err_ret = sdio_memcpy_fromio(sdiodev->func[func],
                         ((u8 *) (pkt->data)),
                         addr, pktlen);
    }

    return err_ret;
}

/*
 * This function takes a queue of packets. The packets on the queue
 * are assumed to be properly aligned by the caller.
 */
int
brcmf_sdioh_request_chain(struct brcmf_sdio_dev *sdiodev, uint fix_inc,
              uint write, uint func, uint addr,
              struct sk_buff_head *pktq)
{
    bool fifo = (fix_inc == SDIOH_DATA_FIX);
    u32 SGCount = 0;
    int err_ret = 0;

    struct sk_buff *pkt;

    brcmf_dbg(TRACE, "Enter\n");

    brcmf_pm_resume_wait(sdiodev, &sdiodev->request_chain_wait);
    if (brcmf_pm_resume_error(sdiodev))
        return -EIO;

    skb_queue_walk(pktq, pkt) {
        uint pkt_len = pkt->len;
        pkt_len += 3;
        pkt_len &= 0xFFFFFFFC;

        err_ret = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
                           addr, pkt, pkt_len);
        if (err_ret) {
            brcmf_dbg(ERROR, "%s FAILED %p[%d], addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
                  write ? "TX" : "RX", pkt, SGCount, addr,
                  pkt_len, err_ret);
        } else {
            brcmf_dbg(TRACE, "%s xfr'd %p[%d], addr=0x%05x, len=%d\n",
                  write ? "TX" : "RX", pkt, SGCount, addr,
                  pkt_len);
        }
        if (!fifo)
            addr += pkt_len;

        SGCount++;
    }

    brcmf_dbg(TRACE, "Exit\n");
    return err_ret;
}

/*
 * This function takes a single DMA-able packet.
 */
int brcmf_sdioh_request_buffer(struct brcmf_sdio_dev *sdiodev,
                   uint fix_inc, uint write, uint func, uint addr,
                   struct sk_buff *pkt)
{
    int status;
    uint pkt_len;
    bool fifo = (fix_inc == SDIOH_DATA_FIX);

    brcmf_dbg(TRACE, "Enter\n");

    if (pkt == NULL)
        return -EINVAL;
    pkt_len = pkt->len;

    brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
    if (brcmf_pm_resume_error(sdiodev))
        return -EIO;

    pkt_len += 3;
    pkt_len &= (uint)~3;

    status = brcmf_sdioh_request_data(sdiodev, write, fifo, func,
                       addr, pkt, pkt_len);
    if (status) {
        brcmf_dbg(ERROR, "%s FAILED %p, addr=0x%05x, pkt_len=%d, ERR=0x%08x\n",
              write ? "TX" : "RX", pkt, addr, pkt_len, status);
    } else {
        brcmf_dbg(TRACE, "%s xfr'd %p, addr=0x%05x, len=%d\n",
              write ? "TX" : "RX", pkt, addr, pkt_len);
    }

    return status;
}

static int brcmf_sdioh_get_cisaddr(struct brcmf_sdio_dev *sdiodev, u32 regaddr)
{
    /* read 24 bits and return valid 17 bit addr */
    int i, ret;
    u32 scratch, regdata;
    __le32 scratch_le;
    u8 *ptr = (u8 *)&scratch_le;

    for (i = 0; i < 3; i++) {
        regdata = brcmf_sdio_regrl(sdiodev, regaddr, &ret);
        if (ret != 0)
            brcmf_dbg(ERROR, "Can't read!\n");

        *ptr++ = (u8) regdata;
        regaddr++;
    }

    /* Only the lower 17-bits are valid */
    scratch = le32_to_cpu(scratch_le);
    scratch &= 0x0001FFFF;
    return scratch;
}

static int brcmf_sdioh_enablefuncs(struct brcmf_sdio_dev *sdiodev)
{
    int err_ret;
    u32 fbraddr;
    u8 func;

    brcmf_dbg(TRACE, "\n");

    /* Get the Card's common CIS address */
    sdiodev->func_cis_ptr[0] = brcmf_sdioh_get_cisaddr(sdiodev,
                               SDIO_CCCR_CIS);
    brcmf_dbg(INFO, "Card's Common CIS Ptr = 0x%x\n",
          sdiodev->func_cis_ptr[0]);

    /* Get the Card's function CIS (for each function) */
    for (fbraddr = SDIO_FBR_BASE(1), func = 1;
         func <= sdiodev->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
        sdiodev->func_cis_ptr[func] =
            brcmf_sdioh_get_cisaddr(sdiodev, SDIO_FBR_CIS + fbraddr);
        brcmf_dbg(INFO, "Function %d CIS Ptr = 0x%x\n",
              func, sdiodev->func_cis_ptr[func]);
    }

    /* Enable Function 1 */
    sdio_claim_host(sdiodev->func[1]);
    err_ret = sdio_enable_func(sdiodev->func[1]);
    sdio_release_host(sdiodev->func[1]);
    if (err_ret)
        brcmf_dbg(ERROR, "Failed to enable F1 Err: 0x%08x\n", err_ret);

    return false;
}

/*
 *  Public entry points & extern's
 */
int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev)
{
    int err_ret = 0;

    brcmf_dbg(TRACE, "\n");

    sdiodev->num_funcs = 2;

    sdio_claim_host(sdiodev->func[1]);
    err_ret = sdio_set_block_size(sdiodev->func[1], SDIO_FUNC1_BLOCKSIZE);
    sdio_release_host(sdiodev->func[1]);
    if (err_ret) {
        brcmf_dbg(ERROR, "Failed to set F1 blocksize\n");
        goto out;
    }

    sdio_claim_host(sdiodev->func[2]);
    err_ret = sdio_set_block_size(sdiodev->func[2], SDIO_FUNC2_BLOCKSIZE);
    sdio_release_host(sdiodev->func[2]);
    if (err_ret) {
        brcmf_dbg(ERROR, "Failed to set F2 blocksize\n");
        goto out;
    }

    brcmf_sdioh_enablefuncs(sdiodev);

out:
    brcmf_dbg(TRACE, "Done\n");
    return err_ret;
}

void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev)
{
    brcmf_dbg(TRACE, "\n");

    /* Disable Function 2 */
    sdio_claim_host(sdiodev->func[2]);
    sdio_disable_func(sdiodev->func[2]);
    sdio_release_host(sdiodev->func[2]);

    /* Disable Function 1 */
    sdio_claim_host(sdiodev->func[1]);
    sdio_disable_func(sdiodev->func[1]);
    sdio_release_host(sdiodev->func[1]);

}

#ifdef CONFIG_BRCMFMAC_SDIO_OOB
static int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
{
    struct brcmf_sdio_oobirq *oobirq_entry;

    if (list_empty(&oobirq_lh)) {
        brcmf_dbg(ERROR, "no valid oob irq resource\n");
        return -ENXIO;
    }

    oobirq_entry = list_first_entry(&oobirq_lh, struct brcmf_sdio_oobirq,
                    list);

    sdiodev->irq = oobirq_entry->irq;
    sdiodev->irq_flags = oobirq_entry->flags;
    list_del(&oobirq_entry->list);
    kfree(oobirq_entry);

    return 0;
}
#else
static inline int brcmf_sdio_getintrcfg(struct brcmf_sdio_dev *sdiodev)
{
    return 0;
}
#endif      /* CONFIG_BRCMFMAC_SDIO_OOB */

static int brcmf_ops_sdio_probe(struct sdio_func *func,
                  const struct sdio_device_id *id)
{
    int ret = 0;
    struct brcmf_sdio_dev *sdiodev;
    struct brcmf_bus *bus_if;

    brcmf_dbg(TRACE, "Enter\n");
    brcmf_dbg(TRACE, "func->class=%x\n", func->class);
    brcmf_dbg(TRACE, "sdio_vendor: 0x%04x\n", func->vendor);
    brcmf_dbg(TRACE, "sdio_device: 0x%04x\n", func->device);
    brcmf_dbg(TRACE, "Function#: 0x%04x\n", func->num);

    if (func->num == 1) {
        if (dev_get_drvdata(&func->card->dev)) {
            brcmf_dbg(ERROR, "card private drvdata occupied\n");
            return -ENXIO;
        }
        bus_if = kzalloc(sizeof(struct brcmf_bus), GFP_KERNEL);
        if (!bus_if)
            return -ENOMEM;
        sdiodev = kzalloc(sizeof(struct brcmf_sdio_dev), GFP_KERNEL);
        if (!sdiodev) {
            kfree(bus_if);
            return -ENOMEM;
        }
        sdiodev->func[0] = func;
        sdiodev->func[1] = func;
        sdiodev->bus_if = bus_if;
        bus_if->bus_priv.sdio = sdiodev;
        bus_if->type = SDIO_BUS;
        bus_if->align = BRCMF_SDALIGN;
        dev_set_drvdata(&func->card->dev, sdiodev);

        atomic_set(&sdiodev->suspend, false);
        init_waitqueue_head(&sdiodev->request_byte_wait);
        init_waitqueue_head(&sdiodev->request_word_wait);
        init_waitqueue_head(&sdiodev->request_chain_wait);
        init_waitqueue_head(&sdiodev->request_buffer_wait);
    }

    if (func->num == 2) {
        sdiodev = dev_get_drvdata(&func->card->dev);
        if ((!sdiodev) || (sdiodev->func[1]->card != func->card))
            return -ENODEV;

        ret = brcmf_sdio_getintrcfg(sdiodev);
        if (ret)
            return ret;
        sdiodev->func[2] = func;

        bus_if = sdiodev->bus_if;
        sdiodev->dev = &func->dev;
        dev_set_drvdata(&func->dev, bus_if);

        brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_probe...\n");
        ret = brcmf_sdio_probe(sdiodev);
    }

    return ret;
}

static void brcmf_ops_sdio_remove(struct sdio_func *func)
{
    struct brcmf_bus *bus_if;
    struct brcmf_sdio_dev *sdiodev;
    brcmf_dbg(TRACE, "Enter\n");
    brcmf_dbg(INFO, "func->class=%x\n", func->class);
    brcmf_dbg(INFO, "sdio_vendor: 0x%04x\n", func->vendor);
    brcmf_dbg(INFO, "sdio_device: 0x%04x\n", func->device);
    brcmf_dbg(INFO, "Function#: 0x%04x\n", func->num);

    if (func->num == 2) {
        bus_if = dev_get_drvdata(&func->dev);
        sdiodev = bus_if->bus_priv.sdio;
        brcmf_dbg(TRACE, "F2 found, calling brcmf_sdio_remove...\n");
        brcmf_sdio_remove(sdiodev);
        dev_set_drvdata(&func->card->dev, NULL);
        dev_set_drvdata(&func->dev, NULL);
        kfree(bus_if);
        kfree(sdiodev);
    }
}

#ifdef CONFIG_PM_SLEEP
static int brcmf_sdio_suspend(struct device *dev)
{
    mmc_pm_flag_t sdio_flags;
    struct sdio_func *func = dev_to_sdio_func(dev);
    struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);
    int ret = 0;

    brcmf_dbg(TRACE, "\n");

    atomic_set(&sdiodev->suspend, true);

    sdio_flags = sdio_get_host_pm_caps(sdiodev->func[1]);
    if (!(sdio_flags & MMC_PM_KEEP_POWER)) {
        brcmf_dbg(ERROR, "Host can't keep power while suspended\n");
        return -EINVAL;
    }

    ret = sdio_set_host_pm_flags(sdiodev->func[1], MMC_PM_KEEP_POWER);
    if (ret) {
        brcmf_dbg(ERROR, "Failed to set pm_flags\n");
        return ret;
    }

    brcmf_sdio_wdtmr_enable(sdiodev, false);

    return ret;
}

static int brcmf_sdio_resume(struct device *dev)
{
    struct sdio_func *func = dev_to_sdio_func(dev);
    struct brcmf_sdio_dev *sdiodev = dev_get_drvdata(&func->card->dev);

    brcmf_sdio_wdtmr_enable(sdiodev, true);
    atomic_set(&sdiodev->suspend, false);
    return 0;
}

static const struct dev_pm_ops brcmf_sdio_pm_ops = {
    .suspend    = brcmf_sdio_suspend,
    .resume     = brcmf_sdio_resume,
};
#endif  /* CONFIG_PM_SLEEP */

static struct sdio_driver brcmf_sdmmc_driver = {
    .probe = brcmf_ops_sdio_probe,
    .remove = brcmf_ops_sdio_remove,
    .name = "brcmfmac",
    .id_table = brcmf_sdmmc_ids,
#ifdef CONFIG_PM_SLEEP
    .drv = {
        .pm = &brcmf_sdio_pm_ops,
    },
#endif  /* CONFIG_PM_SLEEP */
};

#ifdef CONFIG_BRCMFMAC_SDIO_OOB
static int brcmf_sdio_pd_probe(struct platform_device *pdev)
{
    struct resource *res;
    struct brcmf_sdio_oobirq *oobirq_entry;
    int i, ret;

    INIT_LIST_HEAD(&oobirq_lh);

    for (i = 0; ; i++) {
        res = platform_get_resource(pdev, IORESOURCE_IRQ, i);
        if (!res)
            break;

        oobirq_entry = kzalloc(sizeof(struct brcmf_sdio_oobirq),
                       GFP_KERNEL);
        if (!oobirq_entry)
            return -ENOMEM;
        oobirq_entry->irq = res->start;
        oobirq_entry->flags = res->flags & IRQF_TRIGGER_MASK;
        list_add_tail(&oobirq_entry->list, &oobirq_lh);
    }
    if (i == 0)
        return -ENXIO;

    ret = sdio_register_driver(&brcmf_sdmmc_driver);

    if (ret)
        brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);

    return ret;
}

static struct platform_driver brcmf_sdio_pd = {
    .probe      = brcmf_sdio_pd_probe,
    .driver     = {
        .name   = "brcmf_sdio_pd"
    }
};

void brcmf_sdio_exit(void)
{
    brcmf_dbg(TRACE, "Enter\n");

    sdio_unregister_driver(&brcmf_sdmmc_driver);

    platform_driver_unregister(&brcmf_sdio_pd);
}

void brcmf_sdio_init(void)
{
    int ret;

    brcmf_dbg(TRACE, "Enter\n");

    ret = platform_driver_register(&brcmf_sdio_pd);

    if (ret)
        brcmf_dbg(ERROR, "platform_driver_register failed: %d\n", ret);
}
#else
void brcmf_sdio_exit(void)
{
    brcmf_dbg(TRACE, "Enter\n");

    sdio_unregister_driver(&brcmf_sdmmc_driver);
}

void brcmf_sdio_init(void)
{
    int ret;

    brcmf_dbg(TRACE, "Enter\n");

    ret = sdio_register_driver(&brcmf_sdmmc_driver);

    if (ret)
        brcmf_dbg(ERROR, "sdio_register_driver failed: %d\n", ret);
}
#endif      /* CONFIG_BRCMFMAC_SDIO_OOB */