60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
#include "Valve.h"
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#include "gpio_common.h"
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using namespace std::chrono;
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Valve::Valve(uint gpio_motor1, uint gpio_motor2, uint gpio_start, uint gpio_end)
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: motor1(gpio_motor1)
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, motor2(gpio_motor2)
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, start_pin(gpio_start)
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, end_pin(gpio_end) {
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gpio_init_out(motor1);
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gpio_init_out(motor2);
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gpio_init_input(start_pin);
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gpio_init_input(end_pin);
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start_time = steady_clock::now();
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}
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void Valve::open() {
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if (state == State::Opening || pending_state == State::Opening) {
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return;
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}
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gpio_put(motor2, 0);
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gpio_put(motor1, 1);
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state = State::Opening;
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start_time = steady_clock::now();
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}
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void Valve::close() {
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if (state == State::Closing || pending_state == State::Closing) {
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return;
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}
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gpio_put(motor1, 0);
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gpio_put(motor2, 1);
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state = State::Closing;
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start_time = steady_clock::now();
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}
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Valve::State Valve::process() {
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if ((state == State::Opening) && (gpio_get(start_pin) == 0)) {
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gpio_put(motor1, 0);
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state = State::Opened;
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}
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if ((state == State::Closing) && (gpio_get(end_pin) == 0)) {
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gpio_put(motor2, 0);
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state = State::Closed;
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}
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if (state == State::Opening || state == State::Closing) {
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if (duration_cast<seconds>(steady_clock::now() - start_time) > timeout) {
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gpio_put(motor1, 0);
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gpio_put(motor2, 0);
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state = pending_state = State::Unknown;
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}
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}
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return state;
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}
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