/*
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* Copyright (c) 2015 South Silicon Valley Microelectronics Inc.
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* Copyright (c) 2015 iComm Corporation
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/irq.h>
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#include <linux/version.h>
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#include <linux/module.h>
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#include <linux/vmalloc.h>
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/pm_runtime.h>
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#include <linux/mmc/host.h>
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#include <linux/delay.h>
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#include <linux/semaphore.h>
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#include <linux/regulator/consumer.h>
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#include <mach/hardware.h>
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#include <asm/io.h>
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
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#include <linux/printk.h>
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#include <linux/err.h>
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#else
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#include <config/printk.h>
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#endif
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#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 2, 0)
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#include <linux/wlan_plat.h>
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#else
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struct wifi_platform_data
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{
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int (*set_power)(int val);
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int (*set_reset)(int val);
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int (*set_carddetect)(int val);
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void *(*mem_prealloc)(int section, unsigned long size);
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int (*get_mac_addr)(unsigned char *buf);
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void *(*get_country_code)(char *ccode);
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};
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#endif
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#define GPIO_REG_WRITEL(val,reg) \
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do { \
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__raw_writel(val, CTL_PIN_BASE + (reg)); \
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} while (0)
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static int g_wifidev_registered = 0;
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static struct semaphore wifi_control_sem;
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static struct wifi_platform_data *wifi_control_data = NULL;
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static struct resource *wifi_irqres = NULL;
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static int g_wifi_irq_rc = 0;
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#define SDIO_ID 1
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#define IRQ_RES_NAME "ssv_wlan_irq"
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#define WIFI_HOST_WAKE 0xFFFF
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extern void sunxi_mci_rescan_card(unsigned id, unsigned insert);
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extern int wifi_pm_gpio_ctrl(char *name, int level);
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static int ssv_wifi_power(int on)
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{
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printk("ssv pwr on=%d\n", on);
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if (on) {
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wifi_pm_gpio_ctrl("wl_reg_on", 0);
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mdelay(50);
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wifi_pm_gpio_ctrl("wl_reg_on", 1);
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} else {
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wifi_pm_gpio_ctrl("wl_reg_on", 0);
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}
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return 0;
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}
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static int ssv_wifi_reset(int on)
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{
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return 0;
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}
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int ssv_wifi_set_carddetect(int val)
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{
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sunxi_mci_rescan_card(SDIO_ID, val);
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return 0;
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}
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static struct wifi_platform_data ssv_wifi_control = {
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.set_power = ssv_wifi_power,
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.set_reset = ssv_wifi_reset,
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.set_carddetect = ssv_wifi_set_carddetect,
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};
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static struct resource resources[] = { { .start = WIFI_HOST_WAKE,
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.flags = IORESOURCE_IRQ,
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.name = IRQ_RES_NAME, }, };
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void ssv_wifi_device_release(struct device *dev)
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{
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printk(KERN_INFO "ssv_wifi_device_release\n");
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}
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static struct platform_device ssv_wifi_device = {
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.name = "ssv_wlan",
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.id = 1,
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.num_resources = ARRAY_SIZE(resources),
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.resource = resources,
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.dev = { .platform_data = &ssv_wifi_control,
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.release = ssv_wifi_device_release, },
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};
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int wifi_set_power(int on, unsigned long msec)
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{
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if (wifi_control_data && wifi_control_data->set_power) {
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wifi_control_data->set_power(on);
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}
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if (msec)
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msleep(msec);
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return 0;
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}
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int wifi_set_reset(int on, unsigned long msec)
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{
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if (wifi_control_data && wifi_control_data->set_reset) {
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wifi_control_data->set_reset(on);
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}
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if (msec)
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msleep(msec);
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return 0;
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}
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static int wifi_set_carddetect(int on)
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{
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if (wifi_control_data && wifi_control_data->set_carddetect) {
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wifi_control_data->set_carddetect(on);
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}
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return 0;
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}
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static irqreturn_t wifi_wakeup_irq_handler(int irq, void *dev)
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{
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printk("sdhci_wakeup_irq_handler\n");
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disable_irq_nosync(irq);
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return IRQ_HANDLED;
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}
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void setup_wifi_wakeup_BB(struct platform_device *pdev, bool bEnable)
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{
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int rc = 0, ret = 0;
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if (bEnable) {
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wifi_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
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IRQ_RES_NAME);
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rc = (int)wifi_irqres->start;
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g_wifi_irq_rc = rc;
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ret = request_threaded_irq(
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rc, NULL, (void *)wifi_wakeup_irq_handler,
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#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 0, 0)
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IRQ_TYPE_LEVEL_HIGH | IRQF_ONESHOT | IRQF_FORCE_RESUME,
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#else
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IRQ_TYPE_LEVEL_HIGH | IRQF_ONESHOT,
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#endif
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"wlan_wakeup_irq", NULL);
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enable_irq_wake(g_wifi_irq_rc);
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} else {
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if (g_wifi_irq_rc) {
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free_irq(g_wifi_irq_rc, NULL);
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g_wifi_irq_rc = 0;
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}
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}
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}
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static int wifi_probe(struct platform_device *pdev)
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{
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struct wifi_platform_data *wifi_ctrl =
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(struct wifi_platform_data *)(pdev->dev.platform_data);
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printk(KERN_ALERT "wifi_probe\n");
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wifi_control_data = wifi_ctrl;
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wifi_set_power(0, 40);
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wifi_set_power(1, 50);
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wifi_set_carddetect(1);
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up(&wifi_control_sem);
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return 0;
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}
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static int wifi_remove(struct platform_device *pdev)
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{
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struct wifi_platform_data *wifi_ctrl =
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(struct wifi_platform_data *)(pdev->dev.platform_data);
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wifi_control_data = wifi_ctrl;
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wifi_set_power(0, 0);
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wifi_set_power(0, 0);
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wifi_set_power(0, 0);
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wifi_set_power(0, 0);
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wifi_set_carddetect(0);
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return 0;
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}
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static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
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{
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return 0;
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}
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static int wifi_resume(struct platform_device *pdev)
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{
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return 0;
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}
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static struct platform_driver wifi_driver = { .probe = wifi_probe,
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.remove = wifi_remove,
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.suspend = wifi_suspend,
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.resume = wifi_resume,
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.driver = { .name =
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"ssv_wlan", } };
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extern int ssvdevice_init(void);
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extern void ssvdevice_exit(void);
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#ifdef CONFIG_SSV_SUPPORT_AES_ASM
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extern int aes_init(void);
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extern void aes_fini(void);
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extern int sha1_mod_init(void);
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extern void sha1_mod_fini(void);
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#endif
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int initWlan(void)
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{
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int ret = 0;
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sema_init(&wifi_control_sem, 0);
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#ifdef CONFIG_SSV_SUPPORT_AES_ASM
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sha1_mod_init();
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aes_init();
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#endif
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platform_device_register(&ssv_wifi_device);
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platform_driver_register(&wifi_driver);
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g_wifidev_registered = 1;
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if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
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ret = -EINVAL;
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printk(KERN_ALERT "%s: platform_driver_register timeout\n",
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__FUNCTION__);
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}
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ret = ssvdevice_init();
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return ret;
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}
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void exitWlan(void)
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{
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if (g_wifidev_registered) {
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ssvdevice_exit();
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#ifdef CONFIG_SSV_SUPPORT_AES_ASM
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aes_fini();
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sha1_mod_fini();
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#endif
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platform_driver_unregister(&wifi_driver);
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platform_device_unregister(&ssv_wifi_device);
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g_wifidev_registered = 0;
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}
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return;
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}
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static int generic_wifi_init_module(void)
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{
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return initWlan();
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}
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static void generic_wifi_exit_module(void)
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{
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exitWlan();
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}
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EXPORT_SYMBOL(generic_wifi_init_module);
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EXPORT_SYMBOL(generic_wifi_exit_module);
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module_init(generic_wifi_init_module);
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module_exit(generic_wifi_exit_module);
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MODULE_LICENSE("Dual BSD/GPL");
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