52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2013 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#include <drv_types.h>
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#include <mach/wmt_iomux.h>
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#include <linux/gpio.h>
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extern void wmt_detect_sdio2(void);
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extern void force_remove_sdio2(void);
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int platform_wifi_power_on(void)
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{
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int err = 0;
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err = gpio_request(WMT_PIN_GP62_SUSGPIO1, "wifi_chip_en");
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if (err < 0){
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printk("request gpio for rtl8188eu failed!\n");
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return err;
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}
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gpio_direction_output(WMT_PIN_GP62_SUSGPIO1, 0);//pull sus_gpio1 to 0 to open vcc_wifi.
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printk("power on rtl8189.\n");
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msleep(500);
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wmt_detect_sdio2();
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printk("[rtl8189es] %s: new card, power on.\n", __FUNCTION__);
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return err;
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}
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void platform_wifi_power_off(void)
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{
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force_remove_sdio2();
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gpio_direction_output(WMT_PIN_GP62_SUSGPIO1, 1);//pull sus_gpio1 to 1 to close vcc_wifi.
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printk("power off rtl8189.\n");
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gpio_free(WMT_PIN_GP62_SUSGPIO1);
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printk("[rtl8189es] %s: remove card, power off.\n", __FUNCTION__);
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}
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