android: wifi: arm: tegra: tegra_enterprise: Creating board files

Creating initial board files and config files for tegra_enterprise board.

Original-Change-Id: I77dcd612421167b9c6441d5d6fb779bb51491efa
Reviewed-on: http://git-master/r/20852
Reviewed-by: Niket Sirsi <nsirsi@nvidia.com>
Tested-by: Niket Sirsi <nsirsi@nvidia.com>
Change-Id: I498fe3cde454657c22fb1c1bc2212eb5e2f7fd6e

Rebase-Id: Rc408b20c823411b73b88e3da92492410a91ecaef

1 files changed, 140 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-enterprise-sdhci.c b/arch/arm/mach-tegra/board-enterprise-sdhci.c
index a2418ead7f00..b480782af6dd 100644
--- a/arch/arm/mach-tegra/board-enterprise-sdhci.c
+++ b/arch/arm/mach-tegra/board-enterprise-sdhci.c
@@ -16,6 +16,7 @@
 
 #include <linux/resource.h>
 #include <linux/platform_device.h>
+#include <linux/wlan_plat.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/clk.h>
@@ -31,8 +32,45 @@
 #include "board.h"
 
 
+#define ENTERPRISE_WLAN_PWR	TEGRA_GPIO_PD4
+#define ENTERPRISE_WLAN_RST	TEGRA_GPIO_PD3
 #define ENTERPRISE_SD_CD TEGRA_GPIO_PI5
 
+static void (*wifi_status_cb)(int card_present, void *dev_id);
+static void *wifi_status_cb_devid;
+static int enterprise_wifi_status_register(void (*callback)(int , void *), void *);
+
+static int enterprise_wifi_reset(int on);
+static int enterprise_wifi_power(int on);
+static int enterprise_wifi_set_carddetect(int val);
+
+static struct wifi_platform_data enterprise_wifi_control = {
+	.set_power      = enterprise_wifi_power,
+	.set_reset      = enterprise_wifi_reset,
+	.set_carddetect = enterprise_wifi_set_carddetect,
+};
+
+static struct platform_device enterprise_wifi_device = {
+	.name           = "bcm4329_wlan",
+	.id             = 1,
+	.dev            = {
+		.platform_data = &enterprise_wifi_control,
+	},
+};
+
+static struct resource sdhci_resource0[] = {
+	[0] = {
+		.start  = INT_SDMMC1,
+		.end    = INT_SDMMC1,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[1] = {
+		.start	= TEGRA_SDMMC1_BASE,
+		.end	= TEGRA_SDMMC1_BASE + TEGRA_SDMMC1_SIZE-1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
 static struct resource sdhci_resource2[] = {
 	[0] = {
 		.start  = INT_SDMMC3,
@@ -60,6 +98,33 @@ static struct resource sdhci_resource3[] = {
 };
 
 
+static struct tegra_sdhci_platform_data tegra_sdhci_platform_data0 = {
+	.clk_id = NULL,
+	.force_hs = 0,
+	.register_status_notify	= enterprise_wifi_status_register,
+	.cccr   = {
+		.sdio_vsn       = 2,
+		.multi_block    = 1,
+		.low_speed      = 0,
+		.wide_bus       = 0,
+		.high_power     = 1,
+		.high_speed     = 1,
+	},
+	.cis  = {
+		.vendor         = 0x02d0,
+		.device         = 0x4329,
+	},
+	.cd_gpio = -1,
+	.wp_gpio = -1,
+	.power_gpio = -1,
+	.tap_delay = 6,
+	.is_voltage_switch_supported = false,
+	.vsd_name = NULL,
+	.vsd_slot_name = NULL,
+	.max_clk = 48000000,
+	.is_8bit_supported = false,
+};
+
 static struct tegra_sdhci_platform_data tegra_sdhci_platform_data2 = {
 	.cd_gpio = -1,
 	.wp_gpio = -1,
@@ -73,6 +138,16 @@ static struct tegra_sdhci_platform_data tegra_sdhci_platform_data3 = {
 	.is_8bit = 1,
 };
 
+static struct platform_device tegra_sdhci_device0 = {
+	.name		= "sdhci-tegra",
+	.id		= 2,
+	.resource	= sdhci_resource0,
+	.num_resources	= ARRAY_SIZE(sdhci_resource0),
+	.dev = {
+		.platform_data = &tegra_sdhci_platform_data0,
+	},
+};
+
 static struct platform_device tegra_sdhci_device2 = {
 	.name		= "sdhci-tegra",
 	.id		= 2,
@@ -93,14 +168,79 @@ static struct platform_device tegra_sdhci_device3 = {
 	},
 };
 
+static int enterprise_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 int enterprise_wifi_set_carddetect(int val)
+{
+	pr_debug("%s: %d\n", __func__, 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 enterprise_wifi_power(int on)
+{
+	pr_debug("%s: %d\n", __func__, on);
+	gpio_set_value(ENTERPRISE_WLAN_PWR, on);
+	mdelay(100);
+	gpio_set_value(ENTERPRISE_WLAN_RST, on);
+	mdelay(200);
+
+	return 0;
+}
+
+static int enterprise_wifi_reset(int on)
+{
+	pr_debug("%s: do nothing\n", __func__);
+	return 0;
+}
+
+static int __init enterprise_wifi_init(void)
+{
+	int rc;
+
+	rc = gpio_request(ENTERPRISE_WLAN_PWR, "wlan_power");
+	if (rc)
+		pr_err("WLAN_PWR gpio request failed:%d\n", rc);
+	rc = gpio_request(ENTERPRISE_WLAN_RST, "wlan_rst");
+	if (rc)
+		pr_err("WLAN_RST gpio request failed:%d\n", rc);
+
+	tegra_gpio_enable(ENTERPRISE_WLAN_PWR);
+	tegra_gpio_enable(ENTERPRISE_WLAN_RST);
+
+	rc = gpio_direction_output(ENTERPRISE_WLAN_PWR, 0);
+	if (rc)
+		pr_err("WLAN_PWR gpio direction configuration failed:%d\n", rc);
+	gpio_direction_output(ENTERPRISE_WLAN_RST, 0);
+	if (rc)
+		pr_err("WLAN_RST gpio direction configuration failed:%d\n", rc);
+
+	platform_device_register(&enterprise_wifi_device);
+	return 0;
+}
+
 int __init enterprise_sdhci_init(void)
 {
 	platform_device_register(&tegra_sdhci_device3);
+	platform_device_register(&tegra_sdhci_device0);
 
 	tegra_gpio_enable(ENTERPRISE_SD_CD);
 	tegra_sdhci_platform_data2.cd_gpio = ENTERPRISE_SD_CD;
 
 	platform_device_register(&tegra_sdhci_device2);
 
+	enterprise_wifi_init();
 	return 0;
 }