/****************************************************************************** * * Copyright(c) 2013 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * 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. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * ******************************************************************************/ #include #include #include extern void wmt_detect_sdio2(void); extern void force_remove_sdio2(void); int platform_wifi_power_on(void) { int err = 0; err = gpio_request(WMT_PIN_GP62_SUSGPIO1, "wifi_chip_en"); if (err < 0){ printk("request gpio for rtl8188eu failed!\n"); return err; } gpio_direction_output(WMT_PIN_GP62_SUSGPIO1, 0);//pull sus_gpio1 to 0 to open vcc_wifi. printk("power on rtl8189.\n"); msleep(500); wmt_detect_sdio2(); printk("[rtl8189es] %s: new card, power on.\n", __FUNCTION__); return err; } void platform_wifi_power_off(void) { force_remove_sdio2(); gpio_direction_output(WMT_PIN_GP62_SUSGPIO1, 1);//pull sus_gpio1 to 1 to close vcc_wifi. printk("power off rtl8189.\n"); gpio_free(WMT_PIN_GP62_SUSGPIO1); printk("[rtl8189es] %s: remove card, power off.\n", __FUNCTION__); }