drivers/net/wireless/bcmdhd/bcmsdh_sdmmc_linux.c - kernel/common.git - Git at Google

 /*
  * BCMSDH Function Driver for the native SDIO/MMC driver in the Linux Kernel
  *
  * Copyright (C) 1999-2012, Broadcom Corporation
  *
  *      Unless you and Broadcom execute a separate written software license
  * agreement governing use of this software, this software is licensed to you
  * under the terms of the GNU General Public License version 2 (the "GPL"),
  * available at http://www.broadcom.com/licenses/GPLv2.php, with the
  * following added to such license:
  *
  *      As a special exception, the copyright holders of this software give you
  * permission to link this software with independent modules, and to copy and
  * distribute the resulting executable under terms of your choice, provided that
  * you also meet, for each linked independent module, the terms and conditions of
  * the license of that module.  An independent module is a module which is not
  * derived from this software.  The special exception does not apply to any
  * modifications of the software.
  *
  *      Notwithstanding the above, under no circumstances may you combine this
  * software in any way with any other Broadcom software provided under a license
  * other than the GPL, without Broadcom's express prior written consent.
  *
  * $Id: bcmsdh_sdmmc_linux.c 312783 2012-02-03 22:53:56Z $
  */

 #include <typedefs.h>
 #include <bcmutils.h>
 #include <sdio.h>	/* SDIO Device and Protocol Specs */
 #include <bcmsdbus.h>	/* bcmsdh to/from specific controller APIs */
 #include <sdiovar.h>	/* to get msglevel bit values */

 #include <linux/sched.h>	/* request_irq() */

 #include <linux/mmc/core.h>
 #include <linux/mmc/card.h>
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/sdio_ids.h>

 #if !defined(SDIO_VENDOR_ID_BROADCOM)
 #define SDIO_VENDOR_ID_BROADCOM		0x02d0
 #endif /* !defined(SDIO_VENDOR_ID_BROADCOM) */

 #define SDIO_DEVICE_ID_BROADCOM_DEFAULT	0x0000

 #if !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)
 #define SDIO_DEVICE_ID_BROADCOM_4325_SDGWB	0x0492	/* BCM94325SDGWB */
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) */
 #if !defined(SDIO_DEVICE_ID_BROADCOM_4325)
 #define SDIO_DEVICE_ID_BROADCOM_4325	0x0493
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325) */
 #if !defined(SDIO_DEVICE_ID_BROADCOM_4329)
 #define SDIO_DEVICE_ID_BROADCOM_4329	0x4329
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
 #if !defined(SDIO_DEVICE_ID_BROADCOM_4319)
 #define SDIO_DEVICE_ID_BROADCOM_4319	0x4319
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4319) */
 #if !defined(SDIO_DEVICE_ID_BROADCOM_4330)
 #define SDIO_DEVICE_ID_BROADCOM_4330	0x4330
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4330) */
 #if !defined(SDIO_DEVICE_ID_BROADCOM_4334)
 #define SDIO_DEVICE_ID_BROADCOM_4334    0x4334
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4334) */
 #if !defined(SDIO_DEVICE_ID_BROADCOM_4324)
 #define SDIO_DEVICE_ID_BROADCOM_4324    0x4324
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4324) */
 #if !defined(SDIO_DEVICE_ID_BROADCOM_43239)
 #define SDIO_DEVICE_ID_BROADCOM_43239    43239
 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_43239) */


 #include <bcmsdh_sdmmc.h>

 #include <dhd_dbg.h>

 #ifdef WL_CFG80211
 extern void wl_cfg80211_set_parent_dev(void *dev);
 #endif

 extern void sdioh_sdmmc_devintr_off(sdioh_info_t *sd);
 extern void sdioh_sdmmc_devintr_on(sdioh_info_t *sd);
 extern int dhd_os_check_wakelock(void *dhdp);
 extern int dhd_os_check_if_up(void *dhdp);
 extern void *bcmsdh_get_drvdata(void);

 int sdio_function_init(void);
 void sdio_function_cleanup(void);

 #define DESCRIPTION "bcmsdh_sdmmc Driver"
 #define AUTHOR "Broadcom Corporation"

 /* module param defaults */
 static int clockoverride = 0;

 module_param(clockoverride, int, 0644);
 MODULE_PARM_DESC(clockoverride, "SDIO card clock override");

 PBCMSDH_SDMMC_INSTANCE gInstance;

 /* Maximum number of bcmsdh_sdmmc devices supported by driver */
 #define BCMSDH_SDMMC_MAX_DEVICES 1

 extern int bcmsdh_probe(struct device *dev);
 extern int bcmsdh_remove(struct device *dev);
 extern volatile bool dhd_mmc_suspend;

 static int bcmsdh_sdmmc_probe(struct sdio_func *func,
                               const struct sdio_device_id *id)
 {
 	int ret = 0;
 	static struct sdio_func sdio_func_0;
 	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __FUNCTION__));
 	sd_trace(("sdio_bcmsdh: func->class=%x\n", func->class));
 	sd_trace(("sdio_vendor: 0x%04x\n", func->vendor));
 	sd_trace(("sdio_device: 0x%04x\n", func->device));
 	sd_trace(("Function#: 0x%04x\n", func->num));

 	if (func->num == 1) {
 		sdio_func_0.num = 0;
 		sdio_func_0.card = func->card;
 		gInstance->func[0] = &sdio_func_0;
 		if(func->device == 0x4) { /* 4318 */
 			gInstance->func[2] = NULL;
 			sd_trace(("NIC found, calling bcmsdh_probe...\n"));
 			ret = bcmsdh_probe(&func->dev);
 		}
 	}

 	gInstance->func[func->num] = func;

 	if (func->num == 2) {
 #ifdef WL_CFG80211
 		wl_cfg80211_set_parent_dev(&func->dev);
 #endif
 		sd_trace(("F2 found, calling bcmsdh_probe...\n"));
 		ret = bcmsdh_probe(&func->dev);
 	}

 	return ret;
 }

 static void bcmsdh_sdmmc_remove(struct sdio_func *func)
 {
 	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __FUNCTION__));
 	sd_info(("sdio_bcmsdh: func->class=%x\n", func->class));
 	sd_info(("sdio_vendor: 0x%04x\n", func->vendor));
 	sd_info(("sdio_device: 0x%04x\n", func->device));
 	sd_info(("Function#: 0x%04x\n", func->num));

 	if (func->num == 2) {
 		sd_trace(("F2 found, calling bcmsdh_remove...\n"));
 		bcmsdh_remove(&func->dev);
 	} else if (func->num == 1) {
 		sdio_claim_host(func);
 		sdio_disable_func(func);
 		sdio_release_host(func);
 		gInstance->func[1] = NULL;
 	}
 }

 /* devices we support, null terminated */
 static const struct sdio_device_id bcmsdh_sdmmc_ids[] = {
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_DEFAULT) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4319) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4324) },
 	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43239) },
 	{ SDIO_DEVICE_CLASS(SDIO_CLASS_NONE)		},
 	{ /* end: all zeroes */				},
 };

 MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids);

 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM)
 static int bcmsdh_sdmmc_suspend(struct device *pdev)
 {
 	struct sdio_func *func = dev_to_sdio_func(pdev);

 	if (func->num != 2)
 		return 0;

 	sd_trace(("%s Enter\n", __FUNCTION__));

 	if (dhd_os_check_wakelock(bcmsdh_get_drvdata()))
 		return -EBUSY;
 #if defined(OOB_INTR_ONLY)
 	bcmsdh_oob_intr_set(0);
 #endif	/* defined(OOB_INTR_ONLY) */
 	dhd_mmc_suspend = TRUE;
 	smp_mb();

 	return 0;
 }

 static int bcmsdh_sdmmc_resume(struct device *pdev)
 {
 #if defined(OOB_INTR_ONLY)
 	struct sdio_func *func = dev_to_sdio_func(pdev);
 #endif
 	sd_trace(("%s Enter\n", __FUNCTION__));
 	dhd_mmc_suspend = FALSE;
 #if defined(OOB_INTR_ONLY)
 	if ((func->num == 2) && dhd_os_check_if_up(bcmsdh_get_drvdata()))
 		bcmsdh_oob_intr_set(1);
 #endif /* (OOB_INTR_ONLY) */

 	smp_mb();
 	return 0;
 }

 static const struct dev_pm_ops bcmsdh_sdmmc_pm_ops = {
 	.suspend	= bcmsdh_sdmmc_suspend,
 	.resume		= bcmsdh_sdmmc_resume,
 };
 #endif  /* (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) */

 #if defined(BCMLXSDMMC)
 static struct semaphore *notify_semaphore = NULL;

 static int dummy_probe(struct sdio_func *func,
                               const struct sdio_device_id *id)
 {
 	if (notify_semaphore)
 		up(notify_semaphore);
 	return 0;
 }

 static void dummy_remove(struct sdio_func *func)
 {
 }

 static struct sdio_driver dummy_sdmmc_driver = {
 	.probe		= dummy_probe,
 	.remove		= dummy_remove,
 	.name		= "dummy_sdmmc",
 	.id_table	= bcmsdh_sdmmc_ids,
 	};

 int sdio_func_reg_notify(void* semaphore)
 {
 	notify_semaphore = semaphore;
 	return sdio_register_driver(&dummy_sdmmc_driver);
 }

 void sdio_func_unreg_notify(void)
 {
 	sdio_unregister_driver(&dummy_sdmmc_driver);
 }

 #endif /* defined(BCMLXSDMMC) */

 static struct sdio_driver bcmsdh_sdmmc_driver = {
 	.probe		= bcmsdh_sdmmc_probe,
 	.remove		= bcmsdh_sdmmc_remove,
 	.name		= "bcmsdh_sdmmc",
 	.id_table	= bcmsdh_sdmmc_ids,
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM)
 	.drv = {
 	.pm	= &bcmsdh_sdmmc_pm_ops,
 	},
 #endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) */
 	};

 struct sdos_info {
 	sdioh_info_t *sd;
 	spinlock_t lock;
 };


 int
 sdioh_sdmmc_osinit(sdioh_info_t *sd)
 {
 	struct sdos_info *sdos;

 	sdos = (struct sdos_info*)MALLOC(sd->osh, sizeof(struct sdos_info));
 	sd->sdos_info = (void*)sdos;
 	if (sdos == NULL)
 		return BCME_NOMEM;

 	sdos->sd = sd;
 	spin_lock_init(&sdos->lock);
 	return BCME_OK;
 }

 void
 sdioh_sdmmc_osfree(sdioh_info_t *sd)
 {
 	struct sdos_info *sdos;
 	ASSERT(sd && sd->sdos_info);

 	sdos = (struct sdos_info *)sd->sdos_info;
 	MFREE(sd->osh, sdos, sizeof(struct sdos_info));
 }

 /* Interrupt enable/disable */
 SDIOH_API_RC
 sdioh_interrupt_set(sdioh_info_t *sd, bool enable)
 {
 	ulong flags;
 	struct sdos_info *sdos;

 	sd_trace(("%s: %s\n", __FUNCTION__, enable ? "Enabling" : "Disabling"));

 	sdos = (struct sdos_info *)sd->sdos_info;
 	ASSERT(sdos);

 #if !defined(OOB_INTR_ONLY)
 	if (enable && !(sd->intr_handler && sd->intr_handler_arg)) {
 		sd_err(("%s: no handler registered, will not enable\n", __FUNCTION__));
 		return SDIOH_API_RC_FAIL;
 	}
 #endif /* !defined(OOB_INTR_ONLY) */

 	/* Ensure atomicity for enable/disable calls */
 	spin_lock_irqsave(&sdos->lock, flags);

 	sd->client_intr_enabled = enable;
 	if (enable) {
 		sdioh_sdmmc_devintr_on(sd);
 	} else {
 		sdioh_sdmmc_devintr_off(sd);
 	}

 	spin_unlock_irqrestore(&sdos->lock, flags);

 	return SDIOH_API_RC_SUCCESS;
 }


 #ifdef BCMSDH_MODULE
 static int __init
 bcmsdh_module_init(void)
 {
 	int error = 0;
 	sdio_function_init();
 	return error;
 }

 static void __exit
 bcmsdh_module_cleanup(void)
 {
 	sdio_function_cleanup();
 }

 module_init(bcmsdh_module_init);
 module_exit(bcmsdh_module_cleanup);

 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION(DESCRIPTION);
 MODULE_AUTHOR(AUTHOR);

 #endif /* BCMSDH_MODULE */
 /*
  * module init
 */
 int sdio_function_init(void)
 {
 	int error = 0;
 	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __FUNCTION__));

 	gInstance = kzalloc(sizeof(BCMSDH_SDMMC_INSTANCE), GFP_KERNEL);
 	if (!gInstance)
 		return -ENOMEM;

 	error = sdio_register_driver(&bcmsdh_sdmmc_driver);

 	return error;
 }

 /*
  * module cleanup
 */
 extern int bcmsdh_remove(struct device *dev);
 void sdio_function_cleanup(void)
 {
 	sd_trace(("%s Enter\n", __FUNCTION__));


 	sdio_unregister_driver(&bcmsdh_sdmmc_driver);

 	if (gInstance)
 		kfree(gInstance);
 }
	/*
	* BCMSDH Function Driver for the native SDIO/MMC driver in the Linux Kernel
	*
	* Copyright (C) 1999-2012, Broadcom Corporation
	*
	* Unless you and Broadcom execute a separate written software license
	* agreement governing use of this software, this software is licensed to you
	* under the terms of the GNU General Public License version 2 (the "GPL"),
	* available at http://www.broadcom.com/licenses/GPLv2.php, with the
	* following added to such license:
	*
	* As a special exception, the copyright holders of this software give you
	* permission to link this software with independent modules, and to copy and
	* distribute the resulting executable under terms of your choice, provided that
	* you also meet, for each linked independent module, the terms and conditions of
	* the license of that module. An independent module is a module which is not
	* derived from this software. The special exception does not apply to any
	* modifications of the software.
	*
	* Notwithstanding the above, under no circumstances may you combine this
	* software in any way with any other Broadcom software provided under a license
	* other than the GPL, without Broadcom's express prior written consent.
	*
	* $Id: bcmsdh_sdmmc_linux.c 312783 2012-02-03 22:53:56Z $
	*/

	#include <typedefs.h>
	#include <bcmutils.h>
	#include <sdio.h> /* SDIO Device and Protocol Specs */
	#include <bcmsdbus.h> /* bcmsdh to/from specific controller APIs */
	#include <sdiovar.h> /* to get msglevel bit values */

	#include <linux/sched.h> /* request_irq() */

	#include <linux/mmc/core.h>
	#include <linux/mmc/card.h>
	#include <linux/mmc/sdio_func.h>
	#include <linux/mmc/sdio_ids.h>

	#if !defined(SDIO_VENDOR_ID_BROADCOM)
	#define SDIO_VENDOR_ID_BROADCOM 0x02d0
	#endif /* !defined(SDIO_VENDOR_ID_BROADCOM) */

	#define SDIO_DEVICE_ID_BROADCOM_DEFAULT 0x0000

	#if !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)
	#define SDIO_DEVICE_ID_BROADCOM_4325_SDGWB 0x0492 /* BCM94325SDGWB */
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) */
	#if !defined(SDIO_DEVICE_ID_BROADCOM_4325)
	#define SDIO_DEVICE_ID_BROADCOM_4325 0x0493
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325) */
	#if !defined(SDIO_DEVICE_ID_BROADCOM_4329)
	#define SDIO_DEVICE_ID_BROADCOM_4329 0x4329
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
	#if !defined(SDIO_DEVICE_ID_BROADCOM_4319)
	#define SDIO_DEVICE_ID_BROADCOM_4319 0x4319
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4319) */
	#if !defined(SDIO_DEVICE_ID_BROADCOM_4330)
	#define SDIO_DEVICE_ID_BROADCOM_4330 0x4330
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4330) */
	#if !defined(SDIO_DEVICE_ID_BROADCOM_4334)
	#define SDIO_DEVICE_ID_BROADCOM_4334 0x4334
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4334) */
	#if !defined(SDIO_DEVICE_ID_BROADCOM_4324)
	#define SDIO_DEVICE_ID_BROADCOM_4324 0x4324
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4324) */
	#if !defined(SDIO_DEVICE_ID_BROADCOM_43239)
	#define SDIO_DEVICE_ID_BROADCOM_43239 43239
	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_43239) */


	#include <bcmsdh_sdmmc.h>

	#include <dhd_dbg.h>

	#ifdef WL_CFG80211
	extern void wl_cfg80211_set_parent_dev(void *dev);
	#endif

	extern void sdioh_sdmmc_devintr_off(sdioh_info_t *sd);
	extern void sdioh_sdmmc_devintr_on(sdioh_info_t *sd);
	extern int dhd_os_check_wakelock(void *dhdp);
	extern int dhd_os_check_if_up(void *dhdp);
	extern void *bcmsdh_get_drvdata(void);

	int sdio_function_init(void);
	void sdio_function_cleanup(void);

	#define DESCRIPTION "bcmsdh_sdmmc Driver"
	#define AUTHOR "Broadcom Corporation"

	/* module param defaults */
	static int clockoverride = 0;

	module_param(clockoverride, int, 0644);
	MODULE_PARM_DESC(clockoverride, "SDIO card clock override");

	PBCMSDH_SDMMC_INSTANCE gInstance;

	/* Maximum number of bcmsdh_sdmmc devices supported by driver */
	#define BCMSDH_SDMMC_MAX_DEVICES 1

	extern int bcmsdh_probe(struct device *dev);
	extern int bcmsdh_remove(struct device *dev);
	extern volatile bool dhd_mmc_suspend;

	static int bcmsdh_sdmmc_probe(struct sdio_func *func,
	const struct sdio_device_id *id)
	{
	int ret = 0;
	static struct sdio_func sdio_func_0;
	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __FUNCTION__));
	sd_trace(("sdio_bcmsdh: func->class=%x\n", func->class));
	sd_trace(("sdio_vendor: 0x%04x\n", func->vendor));
	sd_trace(("sdio_device: 0x%04x\n", func->device));
	sd_trace(("Function#: 0x%04x\n", func->num));

	if (func->num == 1) {
	sdio_func_0.num = 0;
	sdio_func_0.card = func->card;
	gInstance->func[0] = &sdio_func_0;
	if(func->device == 0x4) { /* 4318 */
	gInstance->func[2] = NULL;
	sd_trace(("NIC found, calling bcmsdh_probe...\n"));
	ret = bcmsdh_probe(&func->dev);
	}
	}

	gInstance->func[func->num] = func;

	if (func->num == 2) {
	#ifdef WL_CFG80211
	wl_cfg80211_set_parent_dev(&func->dev);
	#endif
	sd_trace(("F2 found, calling bcmsdh_probe...\n"));
	ret = bcmsdh_probe(&func->dev);
	}

	return ret;
	}

	static void bcmsdh_sdmmc_remove(struct sdio_func *func)
	{
	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __FUNCTION__));
	sd_info(("sdio_bcmsdh: func->class=%x\n", func->class));
	sd_info(("sdio_vendor: 0x%04x\n", func->vendor));
	sd_info(("sdio_device: 0x%04x\n", func->device));
	sd_info(("Function#: 0x%04x\n", func->num));

	if (func->num == 2) {
	sd_trace(("F2 found, calling bcmsdh_remove...\n"));
	bcmsdh_remove(&func->dev);
	} else if (func->num == 1) {
	sdio_claim_host(func);
	sdio_disable_func(func);
	sdio_release_host(func);
	gInstance->func[1] = NULL;
	}
	}

	/* devices we support, null terminated */
	static const struct sdio_device_id bcmsdh_sdmmc_ids[] = {
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_DEFAULT) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4319) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4324) },
	{ SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43239) },
	{ SDIO_DEVICE_CLASS(SDIO_CLASS_NONE) },
	{ /* end: all zeroes */ },
	};

	MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids);

	#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM)
	static int bcmsdh_sdmmc_suspend(struct device *pdev)
	{
	struct sdio_func *func = dev_to_sdio_func(pdev);

	if (func->num != 2)
	return 0;

	sd_trace(("%s Enter\n", __FUNCTION__));

	if (dhd_os_check_wakelock(bcmsdh_get_drvdata()))
	return -EBUSY;
	#if defined(OOB_INTR_ONLY)
	bcmsdh_oob_intr_set(0);
	#endif /* defined(OOB_INTR_ONLY) */
	dhd_mmc_suspend = TRUE;
	smp_mb();

	return 0;
	}

	static int bcmsdh_sdmmc_resume(struct device *pdev)
	{
	#if defined(OOB_INTR_ONLY)
	struct sdio_func *func = dev_to_sdio_func(pdev);
	#endif
	sd_trace(("%s Enter\n", __FUNCTION__));
	dhd_mmc_suspend = FALSE;
	#if defined(OOB_INTR_ONLY)
	if ((func->num == 2) && dhd_os_check_if_up(bcmsdh_get_drvdata()))
	bcmsdh_oob_intr_set(1);
	#endif /* (OOB_INTR_ONLY) */

	smp_mb();
	return 0;
	}

	static const struct dev_pm_ops bcmsdh_sdmmc_pm_ops = {
	.suspend = bcmsdh_sdmmc_suspend,
	.resume = bcmsdh_sdmmc_resume,
	};
	#endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) */

	#if defined(BCMLXSDMMC)
	static struct semaphore *notify_semaphore = NULL;

	static int dummy_probe(struct sdio_func *func,
	const struct sdio_device_id *id)
	{
	if (notify_semaphore)
	up(notify_semaphore);
	return 0;
	}

	static void dummy_remove(struct sdio_func *func)
	{
	}

	static struct sdio_driver dummy_sdmmc_driver = {
	.probe = dummy_probe,
	.remove = dummy_remove,
	.name = "dummy_sdmmc",
	.id_table = bcmsdh_sdmmc_ids,
	};

	int sdio_func_reg_notify(void* semaphore)
	{
	notify_semaphore = semaphore;
	return sdio_register_driver(&dummy_sdmmc_driver);
	}

	void sdio_func_unreg_notify(void)
	{
	sdio_unregister_driver(&dummy_sdmmc_driver);
	}

	#endif /* defined(BCMLXSDMMC) */

	static struct sdio_driver bcmsdh_sdmmc_driver = {
	.probe = bcmsdh_sdmmc_probe,
	.remove = bcmsdh_sdmmc_remove,
	.name = "bcmsdh_sdmmc",
	.id_table = bcmsdh_sdmmc_ids,
	#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM)
	.drv = {
	.pm = &bcmsdh_sdmmc_pm_ops,
	},
	#endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) */
	};

	struct sdos_info {
	sdioh_info_t *sd;
	spinlock_t lock;
	};


	int
	sdioh_sdmmc_osinit(sdioh_info_t *sd)
	{
	struct sdos_info *sdos;

	sdos = (struct sdos_info*)MALLOC(sd->osh, sizeof(struct sdos_info));
	sd->sdos_info = (void*)sdos;
	if (sdos == NULL)
	return BCME_NOMEM;

	sdos->sd = sd;
	spin_lock_init(&sdos->lock);
	return BCME_OK;
	}

	void
	sdioh_sdmmc_osfree(sdioh_info_t *sd)
	{
	struct sdos_info *sdos;
	ASSERT(sd && sd->sdos_info);

	sdos = (struct sdos_info *)sd->sdos_info;
	MFREE(sd->osh, sdos, sizeof(struct sdos_info));
	}

	/* Interrupt enable/disable */
	SDIOH_API_RC
	sdioh_interrupt_set(sdioh_info_t *sd, bool enable)
	{
	ulong flags;
	struct sdos_info *sdos;

	sd_trace(("%s: %s\n", __FUNCTION__, enable ? "Enabling" : "Disabling"));

	sdos = (struct sdos_info *)sd->sdos_info;
	ASSERT(sdos);

	#if !defined(OOB_INTR_ONLY)
	if (enable && !(sd->intr_handler && sd->intr_handler_arg)) {
	sd_err(("%s: no handler registered, will not enable\n", __FUNCTION__));
	return SDIOH_API_RC_FAIL;
	}
	#endif /* !defined(OOB_INTR_ONLY) */

	/* Ensure atomicity for enable/disable calls */
	spin_lock_irqsave(&sdos->lock, flags);

	sd->client_intr_enabled = enable;
	if (enable) {
	sdioh_sdmmc_devintr_on(sd);
	} else {
	sdioh_sdmmc_devintr_off(sd);
	}

	spin_unlock_irqrestore(&sdos->lock, flags);

	return SDIOH_API_RC_SUCCESS;
	}


	#ifdef BCMSDH_MODULE
	static int __init
	bcmsdh_module_init(void)
	{
	int error = 0;
	sdio_function_init();
	return error;
	}

	static void __exit
	bcmsdh_module_cleanup(void)
	{
	sdio_function_cleanup();
	}

	module_init(bcmsdh_module_init);
	module_exit(bcmsdh_module_cleanup);

	MODULE_LICENSE("GPL v2");
	MODULE_DESCRIPTION(DESCRIPTION);
	MODULE_AUTHOR(AUTHOR);

	#endif /* BCMSDH_MODULE */
	/*
	* module init
	*/
	int sdio_function_init(void)
	{
	int error = 0;
	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __FUNCTION__));

	gInstance = kzalloc(sizeof(BCMSDH_SDMMC_INSTANCE), GFP_KERNEL);
	if (!gInstance)
	return -ENOMEM;

	error = sdio_register_driver(&bcmsdh_sdmmc_driver);

	return error;
	}

	/*
	* module cleanup
	*/
	extern int bcmsdh_remove(struct device *dev);
	void sdio_function_cleanup(void)
	{
	sd_trace(("%s Enter\n", __FUNCTION__));


	sdio_unregister_driver(&bcmsdh_sdmmc_driver);

	if (gInstance)
	kfree(gInstance);
	}