alexey.zholtikov/zh_pcf8574
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This commit is contained in:
Alexey Zholtikov
2025-05-07 10:08:16 +03:00
parent 2a75773239
commit b0f5243aed
2 changed files with 349 additions and 6 deletions
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53
zh_pcf8574.c
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@ -2,11 +2,29 @@
static const char *TAG = "zh_pcf8574";
#define ZH_PCF8574_LOGI(msg, ...) ESP_LOGI(TAG, msg, ##__VA_ARGS__)
#define ZH_PCF8574_LOGW(msg, ...) ESP_LOGW(TAG, msg, ##__VA_ARGS__)
#define ZH_PCF8574_LOGE(msg, ...) ESP_LOGE(TAG, msg, ##__VA_ARGS__)
#define ZH_PCF8574_LOGE_ERR(msg, err, ...) ESP_LOGE(TAG, "[%s:%d:%s] " msg, __FILE__, __LINE__, esp_err_to_name(err), ##__VA_ARGS__)
#define ZH_PCF8574_CHECK(cond, err, msg, ...) \
if (!(cond)) \
{ \
ZH_PCF8574_LOGE_ERR(msg, err); \
return err; \
}
static gpio_num_t _interrupt_gpio = GPIO_NUM_MAX;
static SemaphoreHandle_t _interrupt_semaphore = {0};
static zh_vector_t _vector = {0};
// static esp_err_t _zh_espnow_init_wifi(const zh_espnow_init_config_t *config);
// static esp_err_t _zh_espnow_init_resources(const zh_espnow_init_config_t *config);
static esp_err_t _zh_pcf857_validate_config(const zh_pcf8574_init_config_t *config);
// static esp_err_t _zh_espnow_register_callbacks(bool battery_mode);
// static esp_err_t _zh_espnow_create_task(const zh_espnow_init_config_t *config);
static void _zh_isr_handler(void *arg);
static void _zh_isr_processing_task(void *pvParameter);
static esp_err_t _zh_read_register(zh_pcf8574_handle_t *handle, uint8_t *reg);
@ -16,15 +34,28 @@ ESP_EVENT_DEFINE_BASE(ZH_PCF8574);
esp_err_t zh_pcf8574_init(const zh_pcf8574_init_config_t *config, zh_pcf8574_handle_t *handle)
{
ESP_LOGI(TAG, "PCF8574 initialization begin.");
if (config == NULL || handle == NULL || config->i2c_address == 0xFF)
ZH_PCF8574_LOGI("PCF8574 initialization started.");
if (handle != NULL && handle->is_initialized == true)
{
ESP_LOGE(TAG, "PCF8574 initialization fail. Invalid argument.");
return ESP_ERR_INVALID_ARG;
ZH_PCF8574_LOGW("PCF8574 initialization failed. PCF8574 is already initialized.");
return ESP_OK;
}
esp_err_t err = _zh_pcf8574_validate_config(config);
if (err != ESP_OK)
{
ZH_PCF8574_LOGE("PCF8574 initialization failed. Initial configuration check failed.");
return err;
}
else
{
ZH_PCF8574_LOGI("PCF8574 initial configuration check completed successfully.");
}
ZH_PCF8574_CHECK((config != NULL || handle != NULL || config->i2c_address != 0xFF), ESP_ERR_INVALID_ARG, "PCF8574 initialization fail. Invalid argument.");
handle->i2c_address = config->i2c_address;
handle->gpio_work_mode = (config->p7_gpio_work_mode << 7) | (config->p6_gpio_work_mode << 6) | (config->p5_gpio_work_mode << 5) | (config->p4_gpio_work_mode << 4) |
(config->p3_gpio_work_mode << 3) | (config->p2_gpio_work_mode << 2) | (config->p1_gpio_work_mode << 1) | (config->p0_gpio_work_mode << 0);
handle->gpio_work_mode = (config->p7_gpio_work_mode << 7) | (config->p6_gpio_work_mode << 6) | (config->p5_gpio_work_mode << 5) |
(config->p4_gpio_work_mode << 4) | (config->p3_gpio_work_mode << 3) | (config->p2_gpio_work_mode << 2) |
(config->p1_gpio_work_mode << 1) | (config->p0_gpio_work_mode << 0);
handle->gpio_status = handle->gpio_work_mode;
handle->i2c_port = config->i2c_port;
#ifndef CONFIG_IDF_TARGET_ESP8266
@ -117,6 +148,16 @@ esp_err_t zh_pcf8574_write_gpio(zh_pcf8574_handle_t *handle, zh_pcf8574_gpio_num
}
}
static esp_err_t _zh_pcf857_validate_config(const zh_pcf8574_init_config_t *config)
{
ZH_PCF8574_CHECK(config != NULL, ESP_ERR_INVALID_ARG, "Invalid configuration.");
// ZH_ESPNOW_CHECK(config->wifi_channel > 0 && config->wifi_channel < 15, ESP_ERR_INVALID_ARG, "Invalid WiFi channel.");
// ZH_ESPNOW_CHECK(config->task_priority >= 5 && config->stack_size >= 2048, ESP_ERR_INVALID_ARG, "Invalid task settings.");
// ZH_ESPNOW_CHECK(config->queue_size >= 16, ESP_ERR_INVALID_ARG, "Invalid queue size.");
// ZH_ESPNOW_CHECK(config->attempts > 0, ESP_ERR_INVALID_ARG, "Invalid number of attempts.");
return ESP_OK;
}
void IRAM_ATTR _zh_isr_handler(void *arg)
{
BaseType_t xHigherPriorityTaskWoken = pdFALSE;