1b398a9a7SJoseph Chen /* 2b398a9a7SJoseph Chen * (C) Copyright 2017 Rockchip Electronics Co., Ltd 3b398a9a7SJoseph Chen * 4b398a9a7SJoseph Chen * SPDX-License-Identifier: GPL-2.0+ 5b398a9a7SJoseph Chen */ 6b398a9a7SJoseph Chen 7b398a9a7SJoseph Chen #ifndef _KEY_H_ 8b398a9a7SJoseph Chen #define _KEY_H_ 9b398a9a7SJoseph Chen 106d82ce07SJoseph Chen #include <linux/input.h> 116d82ce07SJoseph Chen 12c315aab8SJoseph Chen #define KEY_LONG_DOWN_MS 2000 13c315aab8SJoseph Chen 14b398a9a7SJoseph Chen enum key_state { 15b398a9a7SJoseph Chen KEY_PRESS_NONE, 16b398a9a7SJoseph Chen KEY_PRESS_UP, 17b398a9a7SJoseph Chen KEY_PRESS_DOWN, 18c315aab8SJoseph Chen KEY_PRESS_LONG_DOWN, 19a2df9606SJoseph Chen KEY_NOT_EXIST, 20b398a9a7SJoseph Chen }; 21b398a9a7SJoseph Chen 22b398a9a7SJoseph Chen struct dm_key_ops { 236e14addfSJoseph Chen const char *name; 24a2df9606SJoseph Chen int (*read)(struct udevice *dev, int code); 25b398a9a7SJoseph Chen }; 26b398a9a7SJoseph Chen 27a2df9606SJoseph Chen struct input_key { 28a2df9606SJoseph Chen const char *name; 29a2df9606SJoseph Chen u32 code; 30a2df9606SJoseph Chen u32 channel; 31a2df9606SJoseph Chen u32 value; 32a2df9606SJoseph Chen u32 margin; 33a2df9606SJoseph Chen u32 vref; 34a2df9606SJoseph Chen int flag; 35a2df9606SJoseph Chen 36a2df9606SJoseph Chen u32 irq; 37a2df9606SJoseph Chen u64 up_t; 38a2df9606SJoseph Chen u64 down_t; 39a2df9606SJoseph Chen }; 40a2df9606SJoseph Chen 41a2df9606SJoseph Chen uint64_t key_get_timer(uint64_t base); 42a2df9606SJoseph Chen int platform_key_read(int code); 43b398a9a7SJoseph Chen 44*3fb84000SJoseph Chen /* General interface for adc or gpio interrupt key event parse */ 45*3fb84000SJoseph Chen int key_parse_gpio_event(struct input_key *key); 46*3fb84000SJoseph Chen int key_parse_adc_event(struct input_key *key, unsigned int adcval); 47*3fb84000SJoseph Chen 48b398a9a7SJoseph Chen #endif 49