1 /* 2 * Copyright (c) 2011, NVIDIA Corporation. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along 15 * with this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 17 */ 18 19 #ifndef __RFKILL_GPIO_H 20 #define __RFKILL_GPIO_H 21 22 #include <linux/types.h> 23 #include <linux/rfkill.h> 24 #include <linux/clk.h> 25 26 #define RFKILL_RK_GPIO_NAME_SIZE 64 27 28 struct rfkill_rk_gpio { 29 int io; 30 char name[RFKILL_RK_GPIO_NAME_SIZE]; 31 int enable; // disable = !enable 32 struct pinctrl_state *gpio_state; 33 struct pinctrl_state *default_state; 34 }; 35 36 struct rfkill_rk_irq { 37 char name[RFKILL_RK_GPIO_NAME_SIZE]; 38 struct rfkill_rk_gpio gpio; 39 int irq; 40 }; 41 42 /** 43 * struct rfkill_rk_platform_data - platform data for rfkill gpio device. 44 * for unused gpio's, the expected value is -1. 45 * @name: name for the gpio rf kill instance 46 * @reset_gpio: GPIO which is used for reseting rfkill switch 47 * @shutdown_gpio: GPIO which is used for shutdown of rfkill switch 48 */ 49 50 struct rfkill_rk_platform_data { 51 char *name; 52 enum rfkill_type type; 53 bool power_toggle; 54 struct pinctrl *pinctrl; 55 struct rfkill_rk_gpio poweron_gpio; 56 struct rfkill_rk_gpio reset_gpio; 57 struct rfkill_rk_gpio wake_gpio; // Host wake or sleep BT 58 struct rfkill_rk_irq wake_host_irq; // BT wakeup host 59 struct rfkill_rk_gpio rts_gpio; 60 struct clk *ext_clk; 61 }; 62 63 int rfkill_get_bt_power_state(int *power, bool *toggle); 64 65 #endif /* __RFKILL_GPIO_H */ 66