[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / brcm80211 / brcmfmac / bcmsdh_sdmmc_linux.c

/*
 * 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.
 */
#include <linux/types.h>
#include <linux/sched.h>	/* request_irq() */
#include <linux/netdevice.h>
#include <bcmdefs.h>
#include <bcmutils.h>
#include <sdio.h>		/* SDIO Specs */
#include <bcmsdbus.h>		/* bcmsdh to/from specific controller APIs */
#include <sdiovar.h>		/* to get msglevel bit values */

#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_4329) */

#include <bcmsdh_sdmmc.h>

#include <dhd_dbg.h>
#include <wl_cfg80211.h>

extern void sdioh_sdmmc_devintr_off(sdioh_info_t *sd);
extern void sdioh_sdmmc_devintr_on(sdioh_info_t *sd);

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

/* module param defaults */
static int clockoverride;

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);
struct device sdmmc_dev;

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", __func__));
	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(&sdmmc_dev);
		}
	}

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

	if (func->num == 2) {
		wl_cfg80211_sdio_func(func);
		sd_trace(("F2 found, calling bcmsdh_probe...\n"));
		ret = bcmsdh_probe(&sdmmc_dev);
	}

	return ret;
}

static void bcmsdh_sdmmc_remove(struct sdio_func *func)
{
	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
	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(&sdmmc_dev);
	}
}

/* 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)},
	{ /* end: all zeroes */ },
};

MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids);

static struct sdio_driver bcmsdh_sdmmc_driver = {
	.probe = bcmsdh_sdmmc_probe,
	.remove = bcmsdh_sdmmc_remove,
	.name = "brcmfmac",
	.id_table = bcmsdh_sdmmc_ids,
};

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

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

	sdos = kmalloc(sizeof(struct sdos_info), GFP_ATOMIC);
	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;
	kfree(sdos);
}

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

	sd_trace(("%s: %s\n", __func__, 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",
			__func__));
		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;
}

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

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

	bzero(&sdmmc_dev, sizeof(sdmmc_dev));
	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", __func__));

	sdio_unregister_driver(&bcmsdh_sdmmc_driver);

	kfree(gInstance);
}
Commit	Line	Data
cf2b4488 HP	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	*/
a1c16ed2 GKH	16	#include <linux/types.h>
a1c16ed2 GKH	17	#include <linux/sched.h> /* request_irq() */
c6ac24e9	18	#include <linux/netdevice.h>
a1c16ed2	19	#include <bcmdefs.h>
cf2b4488 HP	20	#include <bcmutils.h>
	21	#include <sdio.h> /* SDIO Specs */
	22	#include <bcmsdbus.h> /* bcmsdh to/from specific controller APIs */
	23	#include <sdiovar.h> /* to get msglevel bit values */
	24
cf2b4488 HP	25	#include <linux/mmc/core.h>
	26	#include <linux/mmc/card.h>
	27	#include <linux/mmc/sdio_func.h>
	28	#include <linux/mmc/sdio_ids.h>
	29
	30	#if !defined(SDIO_VENDOR_ID_BROADCOM)
	31	#define SDIO_VENDOR_ID_BROADCOM 0x02d0
	32	#endif /* !defined(SDIO_VENDOR_ID_BROADCOM) */
	33
	34	#define SDIO_DEVICE_ID_BROADCOM_DEFAULT 0x0000
	35
	36	#if !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)
	37	#define SDIO_DEVICE_ID_BROADCOM_4325_SDGWB 0x0492 /* BCM94325SDGWB */
	38	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) */
	39	#if !defined(SDIO_DEVICE_ID_BROADCOM_4325)
	40	#define SDIO_DEVICE_ID_BROADCOM_4325 0x0493
	41	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325) */
	42	#if !defined(SDIO_DEVICE_ID_BROADCOM_4329)
	43	#define SDIO_DEVICE_ID_BROADCOM_4329 0x4329
	44	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
	45	#if !defined(SDIO_DEVICE_ID_BROADCOM_4319)
	46	#define SDIO_DEVICE_ID_BROADCOM_4319 0x4319
	47	#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
	48
	49	#include <bcmsdh_sdmmc.h>
	50
	51	#include <dhd_dbg.h>
cf2b4488	52	#include <wl_cfg80211.h>
cf2b4488 HP	53
	54	extern void sdioh_sdmmc_devintr_off(sdioh_info_t *sd);
	55	extern void sdioh_sdmmc_devintr_on(sdioh_info_t *sd);
	56
	57	int sdio_function_init(void);
	58	void sdio_function_cleanup(void);
	59
	60	/* module param defaults */
5f782dee	61	static int clockoverride;
cf2b4488 HP	62
	63	module_param(clockoverride, int, 0644);
	64	MODULE_PARM_DESC(clockoverride, "SDIO card clock override");
	65
	66	PBCMSDH_SDMMC_INSTANCE gInstance;
	67
	68	/* Maximum number of bcmsdh_sdmmc devices supported by driver */
	69	#define BCMSDH_SDMMC_MAX_DEVICES 1
	70
	71	extern int bcmsdh_probe(struct device *dev);
	72	extern int bcmsdh_remove(struct device *dev);
	73	struct device sdmmc_dev;
	74
	75	static int bcmsdh_sdmmc_probe(struct sdio_func *func,
	76	const struct sdio_device_id *id)
	77	{
	78	int ret = 0;
	79	static struct sdio_func sdio_func_0;
	80	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
	81	sd_trace(("sdio_bcmsdh: func->class=%x\n", func->class));
	82	sd_trace(("sdio_vendor: 0x%04x\n", func->vendor));
	83	sd_trace(("sdio_device: 0x%04x\n", func->device));
	84	sd_trace(("Function#: 0x%04x\n", func->num));
	85
	86	if (func->num == 1) {
	87	sdio_func_0.num = 0;
	88	sdio_func_0.card = func->card;
	89	gInstance->func[0] = &sdio_func_0;
	90	if (func->device == 0x4) { /* 4318 */
	91	gInstance->func[2] = NULL;
	92	sd_trace(("NIC found, calling bcmsdh_probe...\n"));
	93	ret = bcmsdh_probe(&sdmmc_dev);
	94	}
	95	}
	96
	97	gInstance->func[func->num] = func;
	98
	99	if (func->num == 2) {
cf2b4488	100	wl_cfg80211_sdio_func(func);
cf2b4488 HP	101	sd_trace(("F2 found, calling bcmsdh_probe...\n"));
	102	ret = bcmsdh_probe(&sdmmc_dev);
	103	}
	104
	105	return ret;
	106	}
	107
	108	static void bcmsdh_sdmmc_remove(struct sdio_func *func)
	109	{
	110	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
	111	sd_info(("sdio_bcmsdh: func->class=%x\n", func->class));
	112	sd_info(("sdio_vendor: 0x%04x\n", func->vendor));
	113	sd_info(("sdio_device: 0x%04x\n", func->device));
	114	sd_info(("Function#: 0x%04x\n", func->num));
	115
	116	if (func->num == 2) {
	117	sd_trace(("F2 found, calling bcmsdh_remove...\n"));
	118	bcmsdh_remove(&sdmmc_dev);
	119	}
	120	}
	121
	122	/* devices we support, null terminated */
	123	static const struct sdio_device_id bcmsdh_sdmmc_ids[] = {
	124	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_DEFAULT)},
	125	{SDIO_DEVICE
	126	(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)},
	127	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325)},
	128	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
	129	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4319)},
	130	{ /* end: all zeroes */ },
	131	};
	132
	133	MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids);
	134
	135	static struct sdio_driver bcmsdh_sdmmc_driver = {
	136	.probe = bcmsdh_sdmmc_probe,
	137	.remove = bcmsdh_sdmmc_remove,
	138	.name = "brcmfmac",
	139	.id_table = bcmsdh_sdmmc_ids,
	140	};
	141
	142	struct sdos_info {
	143	sdioh_info_t *sd;
	144	spinlock_t lock;
	145	};
	146
	147	int sdioh_sdmmc_osinit(sdioh_info_t *sd)
	148	{
	149	struct sdos_info *sdos;
	150
5fcc1fcb	151	sdos = kmalloc(sizeof(struct sdos_info), GFP_ATOMIC);
cf2b4488 HP	152	sd->sdos_info = (void *)sdos;
	153	if (sdos == NULL)
	154	return BCME_NOMEM;
	155
	156	sdos->sd = sd;
	157	spin_lock_init(&sdos->lock);
	158	return BCME_OK;
	159	}
	160
	161	void sdioh_sdmmc_osfree(sdioh_info_t *sd)
	162	{
	163	struct sdos_info *sdos;
	164	ASSERT(sd && sd->sdos_info);
	165
	166	sdos = (struct sdos_info *)sd->sdos_info;
182acb3c	167	kfree(sdos);
cf2b4488 HP	168	}
	169
	170	/* Interrupt enable/disable */
	171	SDIOH_API_RC sdioh_interrupt_set(sdioh_info_t *sd, bool enable)
	172	{
3deea904	173	unsigned long flags;
cf2b4488 HP	174	struct sdos_info *sdos;
	175
	176	sd_trace(("%s: %s\n", __func__, enable ? "Enabling" : "Disabling"));
	177
	178	sdos = (struct sdos_info *)sd->sdos_info;
	179	ASSERT(sdos);
	180
	181	#if !defined(OOB_INTR_ONLY)
	182	if (enable && !(sd->intr_handler && sd->intr_handler_arg)) {
	183	sd_err(("%s: no handler registered, will not enable\n",
	184	__func__));
	185	return SDIOH_API_RC_FAIL;
	186	}
	187	#endif /* !defined(OOB_INTR_ONLY) */
	188
	189	/* Ensure atomicity for enable/disable calls */
	190	spin_lock_irqsave(&sdos->lock, flags);
	191
	192	sd->client_intr_enabled = enable;
	193	if (enable)
	194	sdioh_sdmmc_devintr_on(sd);
	195	else
	196	sdioh_sdmmc_devintr_off(sd);
	197
	198	spin_unlock_irqrestore(&sdos->lock, flags);
	199
	200	return SDIOH_API_RC_SUCCESS;
	201	}
	202
	203	/*
	204	* module init
	205	*/
	206	int sdio_function_init(void)
	207	{
	208	int error = 0;
	209	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
	210
	211	gInstance = kzalloc(sizeof(BCMSDH_SDMMC_INSTANCE), GFP_KERNEL);
	212	if (!gInstance)
	213	return -ENOMEM;
	214
	215	bzero(&sdmmc_dev, sizeof(sdmmc_dev));
	216	error = sdio_register_driver(&bcmsdh_sdmmc_driver);
	217
	218	return error;
	219	}
	220
	221	/*
	222	* module cleanup
	223	*/
	224	extern int bcmsdh_remove(struct device *dev);
	225	void sdio_function_cleanup(void)
	226	{
	227	sd_trace(("%s Enter\n", __func__));
	228
	229	sdio_unregister_driver(&bcmsdh_sdmmc_driver);
	230
	231	kfree(gInstance);
	232	}