arch/arm/mach-omap2/board-tuna-wifi.c - kernel/omap - Git at Google

 /*
  * Copyright (C) 2011 Google, Inc.
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
  * may be copied, distributed, and modified under those terms.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <asm/mach-types.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/setup.h>
 #include <linux/if.h>
 #include <linux/skbuff.h>
 #include <linux/wlan_plat.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/fixed.h>
 #include <plat/mmc.h>

 #include <linux/random.h>
 #include <linux/jiffies.h>

 #include "hsmmc.h"
 #include "control.h"
 #include "mux.h"
 #include "board-tuna.h"

 #define GPIO_WLAN_PMENA		104
 #define GPIO_WLAN_IRQ		2

 #define ATAG_TUNA_MAC	0x57464d41
 /* #define ATAG_TUNA_MAC_DEBUG */

 #ifdef CONFIG_DHD_USE_STATIC_BUF
 #define PREALLOC_WLAN_NUMBER_OF_SECTIONS	4
 #define PREALLOC_WLAN_NUMBER_OF_BUFFERS		160
 #define PREALLOC_WLAN_SECTION_HEADER		24

 #define WLAN_SECTION_SIZE_0	(PREALLOC_WLAN_NUMBER_OF_BUFFERS * 128)
 #define WLAN_SECTION_SIZE_1	(PREALLOC_WLAN_NUMBER_OF_BUFFERS * 128)
 #define WLAN_SECTION_SIZE_2	(PREALLOC_WLAN_NUMBER_OF_BUFFERS * 512)
 #define WLAN_SECTION_SIZE_3	(PREALLOC_WLAN_NUMBER_OF_BUFFERS * 1024)

 #define WLAN_SKB_BUF_NUM	16

 static struct sk_buff *wlan_static_skb[WLAN_SKB_BUF_NUM];

 typedef struct wifi_mem_prealloc_struct {
 	void *mem_ptr;
 	unsigned long size;
 } wifi_mem_prealloc_t;

 static wifi_mem_prealloc_t wifi_mem_array[PREALLOC_WLAN_NUMBER_OF_SECTIONS] = {
 	{ NULL, (WLAN_SECTION_SIZE_0 + PREALLOC_WLAN_SECTION_HEADER) },
 	{ NULL, (WLAN_SECTION_SIZE_1 + PREALLOC_WLAN_SECTION_HEADER) },
 	{ NULL, (WLAN_SECTION_SIZE_2 + PREALLOC_WLAN_SECTION_HEADER) },
 	{ NULL, (WLAN_SECTION_SIZE_3 + PREALLOC_WLAN_SECTION_HEADER) }
 };

 static void *tuna_wifi_mem_prealloc(int section, unsigned long size)
 {
 	if (section == PREALLOC_WLAN_NUMBER_OF_SECTIONS)
 		return wlan_static_skb;
 	if ((section < 0) || (section > PREALLOC_WLAN_NUMBER_OF_SECTIONS))
 		return NULL;
 	if (wifi_mem_array[section].size < size)
 		return NULL;
 	return wifi_mem_array[section].mem_ptr;
 }
 #endif

 int __init tuna_init_wifi_mem(void)
 {
 #ifdef CONFIG_DHD_USE_STATIC_BUF
 	int i;

 	for(i=0;( i < WLAN_SKB_BUF_NUM );i++) {
 		if (i < (WLAN_SKB_BUF_NUM/2))
 			wlan_static_skb[i] = dev_alloc_skb(4096);
 		else
 			wlan_static_skb[i] = dev_alloc_skb(8192);
 	}
 	for(i=0;( i < PREALLOC_WLAN_NUMBER_OF_SECTIONS );i++) {
 		wifi_mem_array[i].mem_ptr = kmalloc(wifi_mem_array[i].size,
 							GFP_KERNEL);
 		if (wifi_mem_array[i].mem_ptr == NULL)
 			return -ENOMEM;
 	}
 #endif
 	return 0;
 }

 static struct resource tuna_wifi_resources[] = {
 	[0] = {
 		.name		= "bcmdhd_wlan_irq",
 		.start		= OMAP_GPIO_IRQ(GPIO_WLAN_IRQ),
 		.end		= OMAP_GPIO_IRQ(GPIO_WLAN_IRQ),
 		.flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL | IORESOURCE_IRQ_SHAREABLE,
 	},
 };

 #if 0
 /* BCM4329 returns wrong sdio_vsn(1) when we read cccr,
  * we use predefined value (sdio_vsn=2) here to initial sdio driver well
   */
 static struct embedded_sdio_data tuna_wifi_emb_data = {
 	.cccr	= {
 		.sdio_vsn       = 2,
 		.multi_block    = 1,
 		.low_speed      = 0,
 		.wide_bus       = 0,
 		.high_power     = 1,
 		.high_speed     = 1,
 	},
 };
 #endif

 static int tuna_wifi_cd = 0; /* WIFI virtual 'card detect' status */
 static void (*wifi_status_cb)(int card_present, void *dev_id);
 static void *wifi_status_cb_devid;
 static struct regulator *clk32kaudio_reg;

 static int tuna_wifi_status_register(
 		void (*callback)(int card_present, void *dev_id),
 		void *dev_id)
 {
 	if (wifi_status_cb)
 		return -EAGAIN;
 	wifi_status_cb = callback;
 	wifi_status_cb_devid = dev_id;
 	return 0;
 }

 static unsigned int tuna_wifi_status(struct device *dev)
 {
 	return tuna_wifi_cd;
 }

 struct mmc_platform_data tuna_wifi_data = {
 	.ocr_mask		= MMC_VDD_165_195 | MMC_VDD_20_21,
 	.built_in		= 1,
 	.status			= tuna_wifi_status,
 	.card_present		= 0,
 	.register_status_notify	= tuna_wifi_status_register,
 };

 static int tuna_wifi_set_carddetect(int val)
 {
 	pr_debug("%s: %d\n", __func__, val);
 	tuna_wifi_cd = val;
 	if (wifi_status_cb) {
 		wifi_status_cb(val, wifi_status_cb_devid);
 	} else
 		pr_warning("%s: Nobody to notify\n", __func__);
 	return 0;
 }

 static int tuna_wifi_power_state;

 struct fixed_voltage_data {
 	struct regulator_desc desc;
 	struct regulator_dev *dev;
 	int microvolts;
 	int gpio;
 	unsigned startup_delay;
 	bool enable_high;
 	bool is_enabled;
 };

 static struct regulator_consumer_supply tuna_vmmc5_supply = {
 	.supply = "vmmc",
 	.dev_name = "omap_hsmmc.4",
 };

 static struct regulator_init_data tuna_vmmc5 = {
 	.constraints = {
 		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
 	},
 	.num_consumer_supplies = 1,
 	.consumer_supplies = &tuna_vmmc5_supply,
 };

 static struct fixed_voltage_config tuna_vwlan = {
 	.supply_name = "vwl1271",
 	.microvolts = 2000000, /* 2.0V */
 	.gpio = GPIO_WLAN_PMENA,
 	.startup_delay = 70000, /* 70msec */
 	.enable_high = 1,
 	.enabled_at_boot = 0,
 	.init_data = &tuna_vmmc5,
 };

 static struct platform_device omap_vwlan_device = {
 	.name		= "reg-fixed-voltage",
 	.id		= 1,
 	.dev = {
 		.platform_data = &tuna_vwlan,
 	},
 };

 static int tuna_wifi_power(int on)
 {
 	int ret = 0;

 	pr_debug("%s: %d\n", __func__, on);
 	if (!clk32kaudio_reg) {
 		clk32kaudio_reg = regulator_get(0, "clk32kaudio");
 		if (IS_ERR(clk32kaudio_reg)) {
 			pr_err("%s: clk32kaudio reg not found!\n", __func__);
 			clk32kaudio_reg = NULL;
 		}
 	}

 	if (clk32kaudio_reg && on && !tuna_wifi_power_state) {
 		ret = regulator_enable(clk32kaudio_reg);
 		if (ret)
 			pr_err("%s: regulator_enable failed: %d\n", __func__,
 				ret);
 	}
 	msleep(300);
 	gpio_set_value(GPIO_WLAN_PMENA, on);
 	msleep(200);

 	if (clk32kaudio_reg && !on && tuna_wifi_power_state) {
 		ret = regulator_disable(clk32kaudio_reg);
 		if (ret)
 			pr_err("%s: regulator_disable failed: %d\n", __func__,
 				ret);
 	}
 	tuna_wifi_power_state = on;
 	return ret;
 }

 static int tuna_wifi_reset_state;

 static int tuna_wifi_reset(int on)
 {
 	pr_debug("%s: do nothing\n", __func__);
 	tuna_wifi_reset_state = on;
 	return 0;
 }

 static unsigned char tuna_mac_addr[IFHWADDRLEN] = { 0,0x90,0x4c,0,0,0 };

 static int __init tuna_mac_addr_setup(char *str)
 {
 	char macstr[IFHWADDRLEN*3];
 	char *macptr = macstr;
 	char *token;
 	int i = 0;

 	if (!str)
 		return 0;
 	pr_debug("wlan MAC = %s\n", str);
 	if (strlen(str) >= sizeof(macstr))
 		return 0;
 	strcpy(macstr, str);

 	while ((token = strsep(&macptr, ":")) != NULL) {
 		unsigned long val;
 		int res;

 		if (i >= IFHWADDRLEN)
 			break;
 		res = strict_strtoul(token, 0x10, &val);
 		if (res < 0)
 			return 0;
 		tuna_mac_addr[i++] = (u8)val;
 	}

 	return 1;
 }

 __setup("androidboot.macaddr=", tuna_mac_addr_setup);

 static int tuna_wifi_get_mac_addr(unsigned char *buf)
 {
 	int type = omap4_tuna_get_type();
 	uint rand_mac;

 	if (type != TUNA_TYPE_TORO)
 		return -EINVAL;

 	if (!buf)
 		return -EFAULT;

 	if ((tuna_mac_addr[4] == 0) && (tuna_mac_addr[5] == 0)) {
 		srandom32((uint)jiffies);
 		rand_mac = random32();
 		tuna_mac_addr[3] = (unsigned char)rand_mac;
 		tuna_mac_addr[4] = (unsigned char)(rand_mac >> 8);
 		tuna_mac_addr[5] = (unsigned char)(rand_mac >> 16);
 	}
 	memcpy(buf, tuna_mac_addr, IFHWADDRLEN);
 	return 0;
 }

 /* Customized Locale table : OPTIONAL feature */
 #define WLC_CNTRY_BUF_SZ	4
 typedef struct cntry_locales_custom {
 	char iso_abbrev[WLC_CNTRY_BUF_SZ];
 	char custom_locale[WLC_CNTRY_BUF_SZ];
 	int  custom_locale_rev;
 } cntry_locales_custom_t;

 static cntry_locales_custom_t tuna_wifi_translate_custom_table[] = {
 /* Table should be filled out based on custom platform regulatory requirement */
 	{"",   "XY", 4},  /* universal */
 	{"US", "US", 69}, /* input ISO "US" to : US regrev 69 */
 	{"CA", "US", 69}, /* input ISO "CA" to : US regrev 69 */
 	{"EU", "EU", 5},  /* European union countries */
 	{"AT", "EU", 5},
 	{"BE", "EU", 5},
 	{"BG", "EU", 5},
 	{"CY", "EU", 5},
 	{"CZ", "EU", 5},
 	{"DK", "EU", 5},
 	{"EE", "EU", 5},
 	{"FI", "EU", 5},
 	{"FR", "EU", 5},
 	{"DE", "EU", 5},
 	{"GR", "EU", 5},
 	{"HU", "EU", 5},
 	{"IE", "EU", 5},
 	{"IT", "EU", 5},
 	{"LV", "EU", 5},
 	{"LI", "EU", 5},
 	{"LT", "EU", 5},
 	{"LU", "EU", 5},
 	{"MT", "EU", 5},
 	{"NL", "EU", 5},
 	{"PL", "EU", 5},
 	{"PT", "EU", 5},
 	{"RO", "EU", 5},
 	{"SK", "EU", 5},
 	{"SI", "EU", 5},
 	{"ES", "EU", 5},
 	{"SE", "EU", 5},
 	{"GB", "EU", 5},  /* input ISO "GB" to : EU regrev 05 */
 	{"IL", "IL", 0},
 	{"CH", "CH", 0},
 	{"TR", "TR", 0},
 	{"NO", "NO", 0},
 	{"KR", "KR", 25},
 	{"AU", "XY", 3},
 	{"CN", "CN", 0},
 	{"TW", "XY", 3},
 	{"AR", "XY", 3},
 	{"MX", "XY", 3},
 	{"JP", "EU", 0},
 	{"BR", "KR", 25}
 };

 static void *tuna_wifi_get_country_code(char *ccode)
 {
 	int size = ARRAY_SIZE(tuna_wifi_translate_custom_table);
 	int i;

 	if (!ccode)
 		return NULL;

 	for (i = 0; i < size; i++)
 		if (strcmp(ccode, tuna_wifi_translate_custom_table[i].iso_abbrev) == 0)
 			return &tuna_wifi_translate_custom_table[i];
 	return &tuna_wifi_translate_custom_table[0];
 }

 static struct wifi_platform_data tuna_wifi_control = {
 	.set_power      = tuna_wifi_power,
 	.set_reset      = tuna_wifi_reset,
 	.set_carddetect = tuna_wifi_set_carddetect,
 #ifdef CONFIG_DHD_USE_STATIC_BUF
 	.mem_prealloc	= tuna_wifi_mem_prealloc,
 #else
 	.mem_prealloc	= NULL,
 #endif
 	.get_mac_addr	= tuna_wifi_get_mac_addr,
 	.get_country_code = tuna_wifi_get_country_code,
 };

 static struct platform_device tuna_wifi_device = {
         .name           = "bcmdhd_wlan",
         .id             = 1,
         .num_resources  = ARRAY_SIZE(tuna_wifi_resources),
         .resource       = tuna_wifi_resources,
         .dev            = {
                 .platform_data = &tuna_wifi_control,
         },
 };

 static void __init tuna_wlan_gpio(void)
 {
 	pr_debug("%s: start\n", __func__);

 	/* WLAN SDIO: MMC5 CMD */
 	omap_mux_init_signal("sdmmc5_cmd", OMAP_PIN_INPUT_PULLUP);
 	/* WLAN SDIO: MMC5 CLK */
 	omap_mux_init_signal("sdmmc5_clk", OMAP_PIN_INPUT_PULLUP);
 	/* WLAN SDIO: MMC5 DAT[0-3] */
 	omap_mux_init_signal("sdmmc5_dat0", OMAP_PIN_INPUT_PULLUP);
 	omap_mux_init_signal("sdmmc5_dat1", OMAP_PIN_INPUT_PULLUP);
 	omap_mux_init_signal("sdmmc5_dat2", OMAP_PIN_INPUT_PULLUP);
 	omap_mux_init_signal("sdmmc5_dat3", OMAP_PIN_INPUT_PULLUP);
 	/* WLAN OOB - BCM4330 - GPIO 16 or GPIO 2 */
 	omap_mux_init_signal("sim_reset.gpio_wk2", OMAP_PIN_INPUT);
 	omap_mux_init_signal("kpd_row1.safe_mode", 0);
 	/* WLAN PMENA - GPIO 104 */
 	omap_mux_init_signal("gpmc_ncs7.gpio_104", OMAP_PIN_OUTPUT);
 	/* Enable power to gpio_wk0-gpio_wk2 */
 	omap4_ctrl_wk_pad_writel(0xb0000000,
 		OMAP4_CTRL_MODULE_PAD_WKUP_CONTROL_USIMIO);

 	/* gpio_enable(GPIO_WLAN_IRQ); */
 	gpio_request(GPIO_WLAN_IRQ, "wlan_irq");
 	gpio_direction_input(GPIO_WLAN_IRQ);
 }

 int __init tuna_wlan_init(void)
 {
 	pr_debug("%s: start\n", __func__);

 	tuna_wlan_gpio();
 	tuna_init_wifi_mem();
 	platform_device_register(&omap_vwlan_device);
 	return platform_device_register(&tuna_wifi_device);
 }
	/*
	* Copyright (C) 2011 Google, Inc.
	*
	* This software is licensed under the terms of the GNU General Public
	* License version 2, as published by the Free Software Foundation, and
	* may be copied, distributed, and modified under those terms.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*/
	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/platform_device.h>
	#include <linux/delay.h>
	#include <linux/err.h>
	#include <asm/mach-types.h>
	#include <asm/gpio.h>
	#include <asm/io.h>
	#include <asm/setup.h>
	#include <linux/if.h>
	#include <linux/skbuff.h>
	#include <linux/wlan_plat.h>
	#include <linux/pm_runtime.h>
	#include <linux/regulator/machine.h>
	#include <linux/regulator/driver.h>
	#include <linux/regulator/fixed.h>
	#include <plat/mmc.h>

	#include <linux/random.h>
	#include <linux/jiffies.h>

	#include "hsmmc.h"
	#include "control.h"
	#include "mux.h"
	#include "board-tuna.h"

	#define GPIO_WLAN_PMENA 104
	#define GPIO_WLAN_IRQ 2

	#define ATAG_TUNA_MAC 0x57464d41
	/* #define ATAG_TUNA_MAC_DEBUG */

	#ifdef CONFIG_DHD_USE_STATIC_BUF
	#define PREALLOC_WLAN_NUMBER_OF_SECTIONS 4
	#define PREALLOC_WLAN_NUMBER_OF_BUFFERS 160
	#define PREALLOC_WLAN_SECTION_HEADER 24

	#define WLAN_SECTION_SIZE_0 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 128)
	#define WLAN_SECTION_SIZE_1 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 128)
	#define WLAN_SECTION_SIZE_2 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 512)
	#define WLAN_SECTION_SIZE_3 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 1024)

	#define WLAN_SKB_BUF_NUM 16

	static struct sk_buff *wlan_static_skb[WLAN_SKB_BUF_NUM];

	typedef struct wifi_mem_prealloc_struct {
	void *mem_ptr;
	unsigned long size;
	} wifi_mem_prealloc_t;

	static wifi_mem_prealloc_t wifi_mem_array[PREALLOC_WLAN_NUMBER_OF_SECTIONS] = {
	{ NULL, (WLAN_SECTION_SIZE_0 + PREALLOC_WLAN_SECTION_HEADER) },
	{ NULL, (WLAN_SECTION_SIZE_1 + PREALLOC_WLAN_SECTION_HEADER) },
	{ NULL, (WLAN_SECTION_SIZE_2 + PREALLOC_WLAN_SECTION_HEADER) },
	{ NULL, (WLAN_SECTION_SIZE_3 + PREALLOC_WLAN_SECTION_HEADER) }
	};

	static void *tuna_wifi_mem_prealloc(int section, unsigned long size)
	{
	if (section == PREALLOC_WLAN_NUMBER_OF_SECTIONS)
	return wlan_static_skb;
	if ((section < 0) \|\| (section > PREALLOC_WLAN_NUMBER_OF_SECTIONS))
	return NULL;
	if (wifi_mem_array[section].size < size)
	return NULL;
	return wifi_mem_array[section].mem_ptr;
	}
	#endif

	int __init tuna_init_wifi_mem(void)
	{
	#ifdef CONFIG_DHD_USE_STATIC_BUF
	int i;

	for(i=0;( i < WLAN_SKB_BUF_NUM );i++) {
	if (i < (WLAN_SKB_BUF_NUM/2))
	wlan_static_skb[i] = dev_alloc_skb(4096);
	else
	wlan_static_skb[i] = dev_alloc_skb(8192);
	}
	for(i=0;( i < PREALLOC_WLAN_NUMBER_OF_SECTIONS );i++) {
	wifi_mem_array[i].mem_ptr = kmalloc(wifi_mem_array[i].size,
	GFP_KERNEL);
	if (wifi_mem_array[i].mem_ptr == NULL)
	return -ENOMEM;
	}
	#endif
	return 0;
	}

	static struct resource tuna_wifi_resources[] = {
	[0] = {
	.name = "bcmdhd_wlan_irq",
	.start = OMAP_GPIO_IRQ(GPIO_WLAN_IRQ),
	.end = OMAP_GPIO_IRQ(GPIO_WLAN_IRQ),
	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHLEVEL \| IORESOURCE_IRQ_SHAREABLE,
	},
	};

	#if 0
	/* BCM4329 returns wrong sdio_vsn(1) when we read cccr,
	* we use predefined value (sdio_vsn=2) here to initial sdio driver well
	*/
	static struct embedded_sdio_data tuna_wifi_emb_data = {
	.cccr = {
	.sdio_vsn = 2,
	.multi_block = 1,
	.low_speed = 0,
	.wide_bus = 0,
	.high_power = 1,
	.high_speed = 1,
	},
	};
	#endif

	static int tuna_wifi_cd = 0; /* WIFI virtual 'card detect' status */
	static void (wifi_status_cb)(int card_present, void dev_id);
	static void *wifi_status_cb_devid;
	static struct regulator *clk32kaudio_reg;

	static int tuna_wifi_status_register(
	void (callback)(int card_present, void dev_id),
	void *dev_id)
	{
	if (wifi_status_cb)
	return -EAGAIN;
	wifi_status_cb = callback;
	wifi_status_cb_devid = dev_id;
	return 0;
	}

	static unsigned int tuna_wifi_status(struct device *dev)
	{
	return tuna_wifi_cd;
	}

	struct mmc_platform_data tuna_wifi_data = {
	.ocr_mask = MMC_VDD_165_195 \| MMC_VDD_20_21,
	.built_in = 1,
	.status = tuna_wifi_status,
	.card_present = 0,
	.register_status_notify = tuna_wifi_status_register,
	};

	static int tuna_wifi_set_carddetect(int val)
	{
	pr_debug("%s: %d\n", __func__, val);
	tuna_wifi_cd = val;
	if (wifi_status_cb) {
	wifi_status_cb(val, wifi_status_cb_devid);
	} else
	pr_warning("%s: Nobody to notify\n", __func__);
	return 0;
	}

	static int tuna_wifi_power_state;

	struct fixed_voltage_data {
	struct regulator_desc desc;
	struct regulator_dev *dev;
	int microvolts;
	int gpio;
	unsigned startup_delay;
	bool enable_high;
	bool is_enabled;
	};

	static struct regulator_consumer_supply tuna_vmmc5_supply = {
	.supply = "vmmc",
	.dev_name = "omap_hsmmc.4",
	};

	static struct regulator_init_data tuna_vmmc5 = {
	.constraints = {
	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies = 1,
	.consumer_supplies = &tuna_vmmc5_supply,
	};

	static struct fixed_voltage_config tuna_vwlan = {
	.supply_name = "vwl1271",
	.microvolts = 2000000, /* 2.0V */
	.gpio = GPIO_WLAN_PMENA,
	.startup_delay = 70000, /* 70msec */
	.enable_high = 1,
	.enabled_at_boot = 0,
	.init_data = &tuna_vmmc5,
	};

	static struct platform_device omap_vwlan_device = {
	.name = "reg-fixed-voltage",
	.id = 1,
	.dev = {
	.platform_data = &tuna_vwlan,
	},
	};

	static int tuna_wifi_power(int on)
	{
	int ret = 0;

	pr_debug("%s: %d\n", __func__, on);
	if (!clk32kaudio_reg) {
	clk32kaudio_reg = regulator_get(0, "clk32kaudio");
	if (IS_ERR(clk32kaudio_reg)) {
	pr_err("%s: clk32kaudio reg not found!\n", __func__);
	clk32kaudio_reg = NULL;
	}
	}

	if (clk32kaudio_reg && on && !tuna_wifi_power_state) {
	ret = regulator_enable(clk32kaudio_reg);
	if (ret)
	pr_err("%s: regulator_enable failed: %d\n", __func__,
	ret);
	}
	msleep(300);
	gpio_set_value(GPIO_WLAN_PMENA, on);
	msleep(200);

	if (clk32kaudio_reg && !on && tuna_wifi_power_state) {
	ret = regulator_disable(clk32kaudio_reg);
	if (ret)
	pr_err("%s: regulator_disable failed: %d\n", __func__,
	ret);
	}
	tuna_wifi_power_state = on;
	return ret;
	}

	static int tuna_wifi_reset_state;

	static int tuna_wifi_reset(int on)
	{
	pr_debug("%s: do nothing\n", __func__);
	tuna_wifi_reset_state = on;
	return 0;
	}

	static unsigned char tuna_mac_addr[IFHWADDRLEN] = { 0,0x90,0x4c,0,0,0 };

	static int __init tuna_mac_addr_setup(char *str)
	{
	char macstr[IFHWADDRLEN*3];
	char *macptr = macstr;
	char *token;
	int i = 0;

	if (!str)
	return 0;
	pr_debug("wlan MAC = %s\n", str);
	if (strlen(str) >= sizeof(macstr))
	return 0;
	strcpy(macstr, str);

	while ((token = strsep(&macptr, ":")) != NULL) {
	unsigned long val;
	int res;

	if (i >= IFHWADDRLEN)
	break;
	res = strict_strtoul(token, 0x10, &val);
	if (res < 0)
	return 0;
	tuna_mac_addr[i++] = (u8)val;
	}

	return 1;
	}

	__setup("androidboot.macaddr=", tuna_mac_addr_setup);

	static int tuna_wifi_get_mac_addr(unsigned char *buf)
	{
	int type = omap4_tuna_get_type();
	uint rand_mac;

	if (type != TUNA_TYPE_TORO)
	return -EINVAL;

	if (!buf)
	return -EFAULT;

	if ((tuna_mac_addr[4] == 0) && (tuna_mac_addr[5] == 0)) {
	srandom32((uint)jiffies);
	rand_mac = random32();
	tuna_mac_addr[3] = (unsigned char)rand_mac;
	tuna_mac_addr[4] = (unsigned char)(rand_mac >> 8);
	tuna_mac_addr[5] = (unsigned char)(rand_mac >> 16);
	}
	memcpy(buf, tuna_mac_addr, IFHWADDRLEN);
	return 0;
	}

	/* Customized Locale table : OPTIONAL feature */
	#define WLC_CNTRY_BUF_SZ 4
	typedef struct cntry_locales_custom {
	char iso_abbrev[WLC_CNTRY_BUF_SZ];
	char custom_locale[WLC_CNTRY_BUF_SZ];
	int custom_locale_rev;
	} cntry_locales_custom_t;

	static cntry_locales_custom_t tuna_wifi_translate_custom_table[] = {
	/* Table should be filled out based on custom platform regulatory requirement */
	{"", "XY", 4}, /* universal */
	{"US", "US", 69}, /* input ISO "US" to : US regrev 69 */
	{"CA", "US", 69}, /* input ISO "CA" to : US regrev 69 */
	{"EU", "EU", 5}, /* European union countries */
	{"AT", "EU", 5},
	{"BE", "EU", 5},
	{"BG", "EU", 5},
	{"CY", "EU", 5},
	{"CZ", "EU", 5},
	{"DK", "EU", 5},
	{"EE", "EU", 5},
	{"FI", "EU", 5},
	{"FR", "EU", 5},
	{"DE", "EU", 5},
	{"GR", "EU", 5},
	{"HU", "EU", 5},
	{"IE", "EU", 5},
	{"IT", "EU", 5},
	{"LV", "EU", 5},
	{"LI", "EU", 5},
	{"LT", "EU", 5},
	{"LU", "EU", 5},
	{"MT", "EU", 5},
	{"NL", "EU", 5},
	{"PL", "EU", 5},
	{"PT", "EU", 5},
	{"RO", "EU", 5},
	{"SK", "EU", 5},
	{"SI", "EU", 5},
	{"ES", "EU", 5},
	{"SE", "EU", 5},
	{"GB", "EU", 5}, /* input ISO "GB" to : EU regrev 05 */
	{"IL", "IL", 0},
	{"CH", "CH", 0},
	{"TR", "TR", 0},
	{"NO", "NO", 0},
	{"KR", "KR", 25},
	{"AU", "XY", 3},
	{"CN", "CN", 0},
	{"TW", "XY", 3},
	{"AR", "XY", 3},
	{"MX", "XY", 3},
	{"JP", "EU", 0},
	{"BR", "KR", 25}
	};

	static void tuna_wifi_get_country_code(char ccode)
	{
	int size = ARRAY_SIZE(tuna_wifi_translate_custom_table);
	int i;

	if (!ccode)
	return NULL;

	for (i = 0; i < size; i++)
	if (strcmp(ccode, tuna_wifi_translate_custom_table[i].iso_abbrev) == 0)
	return &tuna_wifi_translate_custom_table[i];
	return &tuna_wifi_translate_custom_table[0];
	}

	static struct wifi_platform_data tuna_wifi_control = {
	.set_power = tuna_wifi_power,
	.set_reset = tuna_wifi_reset,
	.set_carddetect = tuna_wifi_set_carddetect,
	#ifdef CONFIG_DHD_USE_STATIC_BUF
	.mem_prealloc = tuna_wifi_mem_prealloc,
	#else
	.mem_prealloc = NULL,
	#endif
	.get_mac_addr = tuna_wifi_get_mac_addr,
	.get_country_code = tuna_wifi_get_country_code,
	};

	static struct platform_device tuna_wifi_device = {
	.name = "bcmdhd_wlan",
	.id = 1,
	.num_resources = ARRAY_SIZE(tuna_wifi_resources),
	.resource = tuna_wifi_resources,
	.dev = {
	.platform_data = &tuna_wifi_control,
	},
	};

	static void __init tuna_wlan_gpio(void)
	{
	pr_debug("%s: start\n", __func__);

	/* WLAN SDIO: MMC5 CMD */
	omap_mux_init_signal("sdmmc5_cmd", OMAP_PIN_INPUT_PULLUP);
	/* WLAN SDIO: MMC5 CLK */
	omap_mux_init_signal("sdmmc5_clk", OMAP_PIN_INPUT_PULLUP);
	/* WLAN SDIO: MMC5 DAT[0-3] */
	omap_mux_init_signal("sdmmc5_dat0", OMAP_PIN_INPUT_PULLUP);
	omap_mux_init_signal("sdmmc5_dat1", OMAP_PIN_INPUT_PULLUP);
	omap_mux_init_signal("sdmmc5_dat2", OMAP_PIN_INPUT_PULLUP);
	omap_mux_init_signal("sdmmc5_dat3", OMAP_PIN_INPUT_PULLUP);
	/* WLAN OOB - BCM4330 - GPIO 16 or GPIO 2 */
	omap_mux_init_signal("sim_reset.gpio_wk2", OMAP_PIN_INPUT);
	omap_mux_init_signal("kpd_row1.safe_mode", 0);
	/* WLAN PMENA - GPIO 104 */
	omap_mux_init_signal("gpmc_ncs7.gpio_104", OMAP_PIN_OUTPUT);
	/* Enable power to gpio_wk0-gpio_wk2 */
	omap4_ctrl_wk_pad_writel(0xb0000000,
	OMAP4_CTRL_MODULE_PAD_WKUP_CONTROL_USIMIO);

	/* gpio_enable(GPIO_WLAN_IRQ); */
	gpio_request(GPIO_WLAN_IRQ, "wlan_irq");
	gpio_direction_input(GPIO_WLAN_IRQ);
	}

	int __init tuna_wlan_init(void)
	{
	pr_debug("%s: start\n", __func__);

	tuna_wlan_gpio();
	tuna_init_wifi_mem();
	platform_device_register(&omap_vwlan_device);
	return platform_device_register(&tuna_wifi_device);
	}