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#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/wlan_plat.h>
#include <linux/delay.h>
#include "nvodm_query_discovery.h"
#include "gpio-names.h"
#include "board.h"
#define VENTANA_WLAN_PWR TEGRA_GPIO_PK5
#define VENTANA_WLAN_RST TEGRA_GPIO_PK6
static void (*wifi_status_cb)(int card_present, void *dev_id);
static void *wifi_status_cb_devid;
int ventana_wifi_status_register(void (*callback)(int card_present,
void *dev_id), void *dev_id)
{
pr_debug("%s:\n", __func__);
if (wifi_status_cb) {
pr_err("%s: callback already registered\n", __func__);
return -EAGAIN;
}
wifi_status_cb = callback;
wifi_status_cb_devid = dev_id;
return 0;
}
static int ventana_wifi_power_state;
static int ventana_wifi_power(int on)
{
pr_debug("%s: %d\n", __func__, on);
mdelay(100);
gpio_set_value(VENTANA_WLAN_PWR, on);
mdelay(100);
gpio_set_value(VENTANA_WLAN_RST, on);
mdelay(200);
ventana_wifi_power_state = on;
return 0;
}
static int ventana_wifi_reset_state;
static int ventana_wifi_reset(int on)
{
pr_debug("%s: %d do nothing\n", __func__, on);
ventana_wifi_reset_state = on;
return 0;
}
static int ventana_wifi_cd; /* WIFI virtual 'card detect' status */
static int ventana_wifi_set_carddetect(int val)
{
pr_debug("%s: %d\n", __func__, val);
ventana_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 struct wifi_platform_data ventana_wifi_control = {
.set_power = ventana_wifi_power,
.set_reset = ventana_wifi_reset,
.set_carddetect = ventana_wifi_set_carddetect,
};
static struct platform_device ventana_wifi_device = {
.name = "bcm4329_wlan",
.id = 1,
.dev = {
.platform_data = &ventana_wifi_control,
},
};
static void __init ventana_wlan_gpio(void)
{
tegra_gpio_enable(VENTANA_WLAN_PWR);
gpio_request(VENTANA_WLAN_PWR, "wlan_pwr");
gpio_direction_output(VENTANA_WLAN_PWR, 0);
tegra_gpio_enable(VENTANA_WLAN_RST);
gpio_request(VENTANA_WLAN_RST, "wlan_rst");
gpio_direction_output(VENTANA_WLAN_RST, 0);
}
int __init ventana_setup_wifi(void)
{
pr_debug("%s: start\n", __func__);
ventana_wlan_gpio();
return platform_device_register(&ventana_wifi_device);
}
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