146 lines
5.3 KiB
C
146 lines
5.3 KiB
C
#include "auto_ctrl_thresholds.h"
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#include "freertos/FreeRTOS.h"
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#include "esp_check.h"
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// 默认土壤湿度低于此百分比时启动水泵（单位：%）
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#define DEFAULT_PUMP_ON_SOIL_BELOW_PCT 35.0f
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// 默认土壤湿度高于此百分比时关闭水泵（单位：%）
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#define DEFAULT_PUMP_OFF_SOIL_ABOVE_PCT 45.0f
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// 默认光照强度低于此值时开启补光灯（单位：lux）
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#define DEFAULT_LIGHT_ON_LUX_BELOW 200.0f
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// 默认光照强度高于此值时关闭补光灯（单位：lux）
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#define DEFAULT_LIGHT_OFF_LUX_ABOVE 350.0f
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// 用于保护阈值数据的自旋锁（临界区）
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static portMUX_TYPE s_thresholds_lock = portMUX_INITIALIZER_UNLOCKED;
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// 全局阈值配置结构体，初始化为默认值
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static auto_ctrl_thresholds_t s_thresholds = {
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.pump_on_soil_below_pct = DEFAULT_PUMP_ON_SOIL_BELOW_PCT,
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.pump_off_soil_above_pct = DEFAULT_PUMP_OFF_SOIL_ABOVE_PCT,
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.light_on_lux_below = DEFAULT_LIGHT_ON_LUX_BELOW,
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.light_off_lux_above = DEFAULT_LIGHT_OFF_LUX_ABOVE,
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};
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/**
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* @brief 验证自动控制阈值配置的有效性
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*
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* 检查指针非空、数值范围合法、启停阈值满足 on < off 等条件。
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*
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* @param cfg 待验证的阈值配置指针
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* @return esp_err_t 验证结果，ESP_OK 表示有效
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*/
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static esp_err_t auto_ctrl_thresholds_validate(const auto_ctrl_thresholds_t *cfg)
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{
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ESP_RETURN_ON_FALSE(cfg != NULL, ESP_ERR_INVALID_ARG, "auto_ctrl_thresholds", "cfg is null");
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ESP_RETURN_ON_FALSE(cfg->pump_on_soil_below_pct >= 0.0f && cfg->pump_on_soil_below_pct <= 100.0f,
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ESP_ERR_INVALID_ARG,
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"auto_ctrl_thresholds",
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"pump_on_soil_below_pct out of range");
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ESP_RETURN_ON_FALSE(cfg->pump_off_soil_above_pct >= 0.0f && cfg->pump_off_soil_above_pct <= 100.0f,
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ESP_ERR_INVALID_ARG,
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"auto_ctrl_thresholds",
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"pump_off_soil_above_pct out of range");
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ESP_RETURN_ON_FALSE(cfg->pump_on_soil_below_pct < cfg->pump_off_soil_above_pct,
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ESP_ERR_INVALID_ARG,
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"auto_ctrl_thresholds",
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"pump thresholds must satisfy on < off");
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ESP_RETURN_ON_FALSE(cfg->light_on_lux_below >= 0.0f,
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ESP_ERR_INVALID_ARG,
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"auto_ctrl_thresholds",
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"light_on_lux_below out of range");
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ESP_RETURN_ON_FALSE(cfg->light_off_lux_above >= 0.0f,
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ESP_ERR_INVALID_ARG,
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"auto_ctrl_thresholds",
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"light_off_lux_above out of range");
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ESP_RETURN_ON_FALSE(cfg->light_on_lux_below < cfg->light_off_lux_above,
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ESP_ERR_INVALID_ARG,
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"auto_ctrl_thresholds",
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"light thresholds must satisfy on < off");
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return ESP_OK;
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}
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/**
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* @brief 初始化阈值为默认值
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*
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* 将全局阈值结构体重置为预设的默认配置。
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*/
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void auto_ctrl_thresholds_init_defaults(void)
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{
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const auto_ctrl_thresholds_t defaults = {
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.pump_on_soil_below_pct = DEFAULT_PUMP_ON_SOIL_BELOW_PCT,
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.pump_off_soil_above_pct = DEFAULT_PUMP_OFF_SOIL_ABOVE_PCT,
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.light_on_lux_below = DEFAULT_LIGHT_ON_LUX_BELOW,
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.light_off_lux_above = DEFAULT_LIGHT_OFF_LUX_ABOVE,
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};
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taskENTER_CRITICAL(&s_thresholds_lock);
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s_thresholds = defaults;
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taskEXIT_CRITICAL(&s_thresholds_lock);
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}
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/**
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* @brief 获取当前阈值配置
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*
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* 安全地复制当前阈值到输出参数中。
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*
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* @param out 输出参数，指向接收阈值的结构体
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*/
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void auto_ctrl_thresholds_get(auto_ctrl_thresholds_t *out)
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{
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if (out == NULL) {
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return;
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}
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taskENTER_CRITICAL(&s_thresholds_lock);
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*out = s_thresholds;
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taskEXIT_CRITICAL(&s_thresholds_lock);
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}
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/**
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* @brief 设置新的阈值配置
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*
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* 验证输入配置有效性后，安全更新全局阈值。
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*
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* @param cfg 新的阈值配置指针
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* @return esp_err_t 设置结果，ESP_OK 表示成功
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*/
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esp_err_t auto_ctrl_thresholds_set(const auto_ctrl_thresholds_t *cfg)
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{
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ESP_RETURN_ON_ERROR(auto_ctrl_thresholds_validate(cfg), "auto_ctrl_thresholds", "invalid thresholds");
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taskENTER_CRITICAL(&s_thresholds_lock);
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s_thresholds = *cfg;
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taskEXIT_CRITICAL(&s_thresholds_lock);
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return ESP_OK;
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}
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/**
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* @brief 通过独立参数设置阈值
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*
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* 提供一种更便捷的阈值设置方式，内部封装为结构体后调用 set 接口。
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*
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* @param pump_on_soil_below_pct 水泵启动土壤湿度阈值（%）
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* @param pump_off_soil_above_pct 水泵关闭土壤湿度阈值（%）
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* @param light_on_lux_below 补光灯开启光照阈值（lux）
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* @param light_off_lux_above 补光灯关闭光照阈值（lux）
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* @return esp_err_t 设置结果
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*/
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esp_err_t auto_ctrl_thresholds_set_values(float pump_on_soil_below_pct,
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float pump_off_soil_above_pct,
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float light_on_lux_below,
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float light_off_lux_above)
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{
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const auto_ctrl_thresholds_t cfg = {
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.pump_on_soil_below_pct = pump_on_soil_below_pct,
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.pump_off_soil_above_pct = pump_off_soil_above_pct,
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.light_on_lux_below = light_on_lux_below,
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.light_off_lux_above = light_off_lux_above,
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};
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return auto_ctrl_thresholds_set(&cfg);
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} |