122 lines
4.4 KiB
C
122 lines
4.4 KiB
C
/**
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* @file valve.c
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* @brief Implementation of the motorized valve control library.
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*
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* This file contains the logic for controlling a motorized valve using a
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* VND7050AJ high-side driver. It uses a delayed work item to handle the
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* safety timeouts for opening and closing operations.
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*/
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#include <lib/valve.h>
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#include <zephyr/device.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/kernel.h>
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#include <zephyr/logging/log.h>
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#include <zephyr/settings/settings.h>
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LOG_MODULE_REGISTER(valve, LOG_LEVEL_INF);
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static const struct valve_gpios valve_gpios = {
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.in0 = GPIO_DT_SPEC_GET(DT_NODELABEL(vnd7050aj), in0_gpios),
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.in1 = GPIO_DT_SPEC_GET(DT_NODELABEL(vnd7050aj), in1_gpios),
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.rst = GPIO_DT_SPEC_GET(DT_NODELABEL(vnd7050aj), rst_gpios),
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.sen = GPIO_DT_SPEC_GET(DT_NODELABEL(vnd7050aj), sen_gpios),
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.s0 = GPIO_DT_SPEC_GET(DT_NODELABEL(vnd7050aj), s0_gpios),
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.s1 = GPIO_DT_SPEC_GET(DT_NODELABEL(vnd7050aj), s1_gpios),
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};
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static enum valve_state current_state = VALVE_STATE_CLOSED;
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static enum valve_movement current_movement = VALVE_MOVEMENT_IDLE;
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static uint16_t max_opening_time_s = 60;
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static uint16_t max_closing_time_s = 60;
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static struct k_work_delayable
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valve_work; // Work item for scheduling valve movement timeouts
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/**
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* @brief Work handler for valve movement timeouts.
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*
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* This function is executed when the valve's movement timer expires.
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* It stops the motor to prevent damage and updates the valve's state.
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*
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* @param work Pointer to the k_work item.
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*/
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static void valve_work_handler(struct k_work *work) {
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gpio_pin_set_dt(&valve_gpios.in0, 0);
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gpio_pin_set_dt(&valve_gpios.in1, 0);
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gpio_pin_set_dt(&valve_gpios.rst, 0);
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if (current_movement == VALVE_MOVEMENT_OPENING) {
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LOG_INF("Valve finished opening");
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} else if (current_movement == VALVE_MOVEMENT_CLOSING) {
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current_state = VALVE_STATE_CLOSED;
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LOG_INF("Valve finished closing");
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}
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current_movement = VALVE_MOVEMENT_IDLE;
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}
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void valve_init(void) {
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k_work_init_delayable(&valve_work, valve_work_handler);
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settings_load_one("valve/max_open_time", &max_opening_time_s,
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sizeof(max_opening_time_s));
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settings_load_one("valve/max_close_time", &max_closing_time_s,
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sizeof(max_closing_time_s));
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gpio_pin_configure_dt(&valve_gpios.in0, GPIO_OUTPUT_INACTIVE);
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gpio_pin_configure_dt(&valve_gpios.in1, GPIO_OUTPUT_INACTIVE);
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gpio_pin_configure_dt(&valve_gpios.rst,
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GPIO_OUTPUT_ACTIVE); // Keep VND7050AJ out of reset
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gpio_pin_configure_dt(&valve_gpios.sen, GPIO_OUTPUT_INACTIVE);
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gpio_pin_configure_dt(&valve_gpios.s0,
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GPIO_OUTPUT_INACTIVE); // S0 select pin - output
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gpio_pin_configure_dt(&valve_gpios.s1,
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GPIO_OUTPUT_INACTIVE); // S1 select pin - output
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LOG_INF("Valve initialized: max_open=%us, max_close=%us", max_opening_time_s,
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max_closing_time_s);
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}
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void valve_open(void) {
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if (current_state == VALVE_STATE_CLOSED) {
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gpio_pin_set_dt(&valve_gpios.rst, 1);
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gpio_pin_set_dt(&valve_gpios.in0, 1);
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gpio_pin_set_dt(&valve_gpios.in1, 0);
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current_state = VALVE_STATE_OPEN;
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current_movement = VALVE_MOVEMENT_OPENING;
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k_work_schedule(&valve_work, K_MSEC(max_opening_time_s * 1000 * 0.9));
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}
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}
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void valve_close(void) {
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if (current_state == VALVE_STATE_OPEN) {
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gpio_pin_set_dt(&valve_gpios.rst, 1);
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gpio_pin_set_dt(&valve_gpios.in0, 0);
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gpio_pin_set_dt(&valve_gpios.in1, 1);
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current_movement = VALVE_MOVEMENT_CLOSING;
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k_work_schedule(&valve_work, K_MSEC(max_closing_time_s * 1000 * 0.9));
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}
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}
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void valve_stop(void) {
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k_work_cancel_delayable(&valve_work);
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current_movement = VALVE_MOVEMENT_IDLE;
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}
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enum valve_state valve_get_state(void) { return current_state; }
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enum valve_movement valve_get_movement(void) { return current_movement; }
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uint16_t valve_get_motor_current(void) {
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return (current_movement != VALVE_MOVEMENT_IDLE) ? 150 : 10;
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}
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void valve_set_max_open_time(uint16_t seconds) {
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max_opening_time_s = seconds;
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settings_save_one("valve/max_open_time", &max_opening_time_s,
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sizeof(max_opening_time_s));
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}
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void valve_set_max_close_time(uint16_t seconds) {
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max_closing_time_s = seconds;
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settings_save_one("valve/max_close_time", &max_closing_time_s,
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sizeof(max_closing_time_s));
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}
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uint16_t valve_get_max_open_time(void) { return max_opening_time_s; }
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uint16_t valve_get_max_close_time(void) { return max_closing_time_s; }
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