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162 lines
6.2 KiB
162 lines
6.2 KiB
/******************************************************************************
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* Copyright 2013-2014 Espressif Systems (Wuxi)
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*
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* FileName: key.c
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*
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* Description: key driver, now can use different gpio and install different function
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*
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* Modification history:
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* 2014/5/1, v1.0 create this file.
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*******************************************************************************/
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#include "ets_sys.h"
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#include "os_type.h"
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#include "osapi.h"
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#include "mem.h"
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#include "gpio.h"
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#include "user_interface.h"
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#include "driver/key.h"
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LOCAL void key_intr_handler(struct keys_param *keys);
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/******************************************************************************
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* FunctionName : key_init_single
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* Description : init single key's gpio and register function
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* Parameters : uint8 gpio_id - which gpio to use
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* uint32 gpio_name - gpio mux name
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* uint32 gpio_func - gpio function
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* key_function long_press - long press function, needed to install
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* key_function short_press - short press function, needed to install
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* Returns : single_key_param - single key parameter, needed by key init
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*******************************************************************************/
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struct single_key_param *ICACHE_FLASH_ATTR
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key_init_single(uint8 gpio_id, uint32 gpio_name, uint8 gpio_func, key_function long_press, key_function short_press)
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{
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struct single_key_param *single_key = (struct single_key_param *)os_zalloc(sizeof(struct single_key_param));
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single_key->gpio_id = gpio_id;
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single_key->gpio_name = gpio_name;
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single_key->gpio_func = gpio_func;
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single_key->long_press = long_press;
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single_key->short_press = short_press;
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return single_key;
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}
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/******************************************************************************
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* FunctionName : key_init
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* Description : init keys
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* Parameters : key_param *keys - keys parameter, which inited by key_init_single
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* Returns : none
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*******************************************************************************/
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void ICACHE_FLASH_ATTR
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key_init(struct keys_param *keys)
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{
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uint8 i;
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ETS_GPIO_INTR_ATTACH(key_intr_handler, keys);
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ETS_GPIO_INTR_DISABLE();
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for (i = 0; i < keys->key_num; i++) {
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keys->single_key[i]->key_level = 1;
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PIN_FUNC_SELECT(keys->single_key[i]->gpio_name, keys->single_key[i]->gpio_func);
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gpio_output_set(0, 0, 0, GPIO_ID_PIN(keys->single_key[i]->gpio_id));
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gpio_register_set(GPIO_PIN_ADDR(keys->single_key[i]->gpio_id), GPIO_PIN_INT_TYPE_SET(GPIO_PIN_INTR_DISABLE)
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| GPIO_PIN_PAD_DRIVER_SET(GPIO_PAD_DRIVER_DISABLE)
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| GPIO_PIN_SOURCE_SET(GPIO_AS_PIN_SOURCE));
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//clear gpio14 status
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GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, BIT(keys->single_key[i]->gpio_id));
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//enable interrupt
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gpio_pin_intr_state_set(GPIO_ID_PIN(keys->single_key[i]->gpio_id), GPIO_PIN_INTR_NEGEDGE);
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}
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ETS_GPIO_INTR_ENABLE();
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}
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/******************************************************************************
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* FunctionName : key_5s_cb
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* Description : long press 5s timer callback
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* Parameters : single_key_param *single_key - single key parameter
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* Returns : none
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*******************************************************************************/
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LOCAL void ICACHE_FLASH_ATTR
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key_5s_cb(struct single_key_param *single_key)
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{
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os_timer_disarm(&single_key->key_5s);
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// low, then restart
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if (0 == GPIO_INPUT_GET(GPIO_ID_PIN(single_key->gpio_id))) {
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if (single_key->long_press) {
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single_key->long_press();
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}
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}
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}
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/******************************************************************************
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* FunctionName : key_50ms_cb
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* Description : 50ms timer callback to check it's a real key push
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* Parameters : single_key_param *single_key - single key parameter
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* Returns : none
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*******************************************************************************/
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LOCAL void ICACHE_FLASH_ATTR
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key_50ms_cb(struct single_key_param *single_key)
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{
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os_timer_disarm(&single_key->key_50ms);
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// high, then key is up
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if (1 == GPIO_INPUT_GET(GPIO_ID_PIN(single_key->gpio_id))) {
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os_timer_disarm(&single_key->key_5s);
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single_key->key_level = 1;
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gpio_pin_intr_state_set(GPIO_ID_PIN(single_key->gpio_id), GPIO_PIN_INTR_NEGEDGE);
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if (single_key->short_press) {
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single_key->short_press();
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}
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} else {
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gpio_pin_intr_state_set(GPIO_ID_PIN(single_key->gpio_id), GPIO_PIN_INTR_POSEDGE);
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}
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}
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/******************************************************************************
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* FunctionName : key_intr_handler
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* Description : key interrupt handler
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* Parameters : key_param *keys - keys parameter, which inited by key_init_single
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* Returns : none
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*******************************************************************************/
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LOCAL void
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key_intr_handler(struct keys_param *keys)
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{
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uint8 i;
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uint32 gpio_status = GPIO_REG_READ(GPIO_STATUS_ADDRESS);
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for (i = 0; i < keys->key_num; i++) {
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if (gpio_status & BIT(keys->single_key[i]->gpio_id)) {
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//disable interrupt
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gpio_pin_intr_state_set(GPIO_ID_PIN(keys->single_key[i]->gpio_id), GPIO_PIN_INTR_DISABLE);
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//clear interrupt status
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GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, gpio_status & BIT(keys->single_key[i]->gpio_id));
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if (keys->single_key[i]->key_level == 1) {
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// 5s, restart & enter softap mode
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os_timer_disarm(&keys->single_key[i]->key_5s);
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os_timer_setfn(&keys->single_key[i]->key_5s, (os_timer_func_t *)key_5s_cb, keys->single_key[i]);
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os_timer_arm(&keys->single_key[i]->key_5s, 5000, 0);
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keys->single_key[i]->key_level = 0;
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gpio_pin_intr_state_set(GPIO_ID_PIN(keys->single_key[i]->gpio_id), GPIO_PIN_INTR_POSEDGE);
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} else {
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// 50ms, check if this is a real key up
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os_timer_disarm(&keys->single_key[i]->key_50ms);
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os_timer_setfn(&keys->single_key[i]->key_50ms, (os_timer_func_t *)key_50ms_cb, keys->single_key[i]);
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os_timer_arm(&keys->single_key[i]->key_50ms, 50, 0);
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}
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}
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}
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}
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