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#include "input_i.h"
#define GPIO_Read(input_pin) (furi_hal_gpio_read(input_pin.pin->gpio) ^ (input_pin.pin->inverted))
static Input* input = NULL;
inline static void input_timer_start(FuriTimer* timer_id, uint32_t ticks) {
TimerHandle_t hTimer = (TimerHandle_t)timer_id;
furi_check(xTimerChangePeriod(hTimer, ticks, portMAX_DELAY) == pdPASS);
}
inline static void input_timer_stop(FuriTimer* timer_id) {
TimerHandle_t hTimer = (TimerHandle_t)timer_id;
furi_check(xTimerStop(hTimer, portMAX_DELAY) == pdPASS);
// xTimerStop is not actually stopping timer,
// Instead it places stop event into timer queue
// This code ensures that timer is stopped
while(xTimerIsTimerActive(hTimer) == pdTRUE) furi_delay_tick(1);
}
void input_press_timer_callback(void* arg) {
InputPinState* input_pin = arg;
InputEvent event;
event.sequence = input_pin->counter;
event.key = input_pin->pin->key;
input_pin->press_counter++;
if(input_pin->press_counter == INPUT_LONG_PRESS_COUNTS) {
event.type = InputTypeLong;
furi_pubsub_publish(input->event_pubsub, &event);
} else if(input_pin->press_counter > INPUT_LONG_PRESS_COUNTS) {
input_pin->press_counter--;
event.type = InputTypeRepeat;
furi_pubsub_publish(input->event_pubsub, &event);
}
}
void input_isr(void* _ctx) {
UNUSED(_ctx);
furi_thread_flags_set(input->thread_id, INPUT_THREAD_FLAG_ISR);
}
const char* input_get_key_name(InputKey key) {
for(size_t i = 0; i < input_pins_count; i++) {
if(input_pins[i].key == key) {
return input_pins[i].name;
}
}
return "Unknown";
}
const char* input_get_type_name(InputType type) {
switch(type) {
case InputTypePress:
return "Press";
case InputTypeRelease:
return "Release";
case InputTypeShort:
return "Short";
case InputTypeLong:
return "Long";
case InputTypeRepeat:
return "Repeat";
}
return "Unknown";
}
int32_t input_srv() {
input = malloc(sizeof(Input));
input->thread_id = furi_thread_get_current_id();
input->event_pubsub = furi_pubsub_alloc();
furi_record_create(RECORD_INPUT_EVENTS, input->event_pubsub);
#ifdef SRV_CLI
input->cli = furi_record_open(RECORD_CLI);
if(input->cli) {
cli_add_command(input->cli, "input", CliCommandFlagParallelSafe, input_cli, input);
}
#endif
input->pin_states = malloc(input_pins_count * sizeof(InputPinState));
for(size_t i = 0; i < input_pins_count; i++) {
furi_hal_gpio_add_int_callback(input_pins[i].gpio, input_isr, NULL);
input->pin_states[i].pin = &input_pins[i];
input->pin_states[i].state = GPIO_Read(input->pin_states[i]);
input->pin_states[i].debounce = INPUT_DEBOUNCE_TICKS_HALF;
input->pin_states[i].press_timer = furi_timer_alloc(
input_press_timer_callback, FuriTimerTypePeriodic, &input->pin_states[i]);
input->pin_states[i].press_counter = 0;
}
while(1) {
bool is_changing = false;
for(size_t i = 0; i < input_pins_count; i++) {
bool state = GPIO_Read(input->pin_states[i]);
if(input->pin_states[i].debounce > 0 &&
input->pin_states[i].debounce < INPUT_DEBOUNCE_TICKS) {
is_changing = true;
input->pin_states[i].debounce += (state ? 1 : -1);
} else if(input->pin_states[i].state != state) {
input->pin_states[i].state = state;
// Common state info
InputEvent event;
event.key = input->pin_states[i].pin->key;
// Short / Long / Repeat timer routine
if(state) {
input->counter++;
input->pin_states[i].counter = input->counter;
event.sequence = input->pin_states[i].counter;
input_timer_start(input->pin_states[i].press_timer, INPUT_PRESS_TICKS);
} else {
event.sequence = input->pin_states[i].counter;
input_timer_stop(input->pin_states[i].press_timer);
if(input->pin_states[i].press_counter < INPUT_LONG_PRESS_COUNTS) {
event.type = InputTypeShort;
furi_pubsub_publish(input->event_pubsub, &event);
}
input->pin_states[i].press_counter = 0;
}
// Send Press/Release event
event.type = input->pin_states[i].state ? InputTypePress : InputTypeRelease;
furi_pubsub_publish(input->event_pubsub, &event);
}
}
if(is_changing) {
furi_delay_tick(1);
} else {
furi_thread_flags_wait(INPUT_THREAD_FLAG_ISR, FuriFlagWaitAny, FuriWaitForever);
}
}
return 0;
}
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