aZholtikov/zh_pcf8574
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perf: updated error checks

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aZholtikov committed 2026-03-14 09:57:55 +03:00
1 parent 828fcb9b7f
commit ee9e5fd0eb
1 file changed
+89 -53
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zh_pcf8574.c
+89 -53
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@@ -16,8 +16,8 @@ static const char *TAG = "zh_pcf8574";
TaskHandle_t zh_pcf8574 = NULL;
static SemaphoreHandle_t _interrupt_semaphore = NULL;
static uint8_t _interrupt_gpio = GPIO_NUM_MAX;
static uint8_t _i2c_matrix[16] = {0};
volatile static uint8_t _interrupt_gpio = GPIO_NUM_MAX;
volatile static uint8_t _i2c_matrix[16] = {0};
static const uint8_t _gpio_matrix[8] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80};
static zh_pcf8574_stats_t _stats = {0};
@@ -45,17 +45,25 @@ esp_err_t zh_pcf8574_init(const zh_pcf8574_init_config_t *config, zh_pcf8574_han
err = _zh_pcf8574_i2c_init(config, handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "PCF8574 initialization failed. Failed to add I2C device.");
err = _zh_pcf8574_write_register(handle, handle->gpio_work_mode);
ZH_ERROR_CHECK(err == ESP_OK, err, i2c_master_bus_rm_device(handle->dev_handle), "PCF8574 initialization failed. Failed extender initial GPIO setup.");
ZH_ERROR_CHECK(err == ESP_OK, err, err = i2c_master_bus_rm_device(handle->dev_handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "I2C remove device failed."), "PCF8574 initialization failed. Failed extender initial GPIO setup.");
if (config->interrupt_gpio < GPIO_NUM_MAX && handle->gpio_work_mode != 0)
{
err = _zh_pcf8574_gpio_init(config, handle);
ZH_ERROR_CHECK(err == ESP_OK, err, i2c_master_bus_rm_device(handle->dev_handle), "PCF8574 initialization failed. Interrupt GPIO initialization failed.");
ZH_ERROR_CHECK(err == ESP_OK, err, err = i2c_master_bus_rm_device(handle->dev_handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "I2C remove device failed."), "PCF8574 initialization failed. Interrupt GPIO initialization failed.");
err = _zh_pcf8574_resources_init(config);
ZH_ERROR_CHECK(err == ESP_OK, err, i2c_master_bus_rm_device(handle->dev_handle); gpio_isr_handler_remove((gpio_num_t)config->interrupt_gpio);
gpio_reset_pin((gpio_num_t)config->interrupt_gpio); zh_vector_free(&_vector), "PCF8574 initialization failed. Resources initialization failed.");
ZH_ERROR_CHECK(err == ESP_OK, err, err = i2c_master_bus_rm_device(handle->dev_handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "I2C remove device failed."); err = gpio_isr_handler_remove((gpio_num_t)config->interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Remove gpio isr handler failed."); err = gpio_reset_pin((gpio_num_t)config->interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Reset gpio failed."); err = zh_vector_free(&_vector);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Free vector failed."), "PCF8574 initialization failed. Resources initialization failed.");
err = _zh_pcf8574_task_init(config);
ZH_ERROR_CHECK(err == ESP_OK, err, i2c_master_bus_rm_device(handle->dev_handle); gpio_isr_handler_remove((gpio_num_t)config->interrupt_gpio);
gpio_reset_pin((gpio_num_t)config->interrupt_gpio); zh_vector_free(&_vector); vSemaphoreDelete(_interrupt_semaphore), "PCF8574 initialization failed. Task initialization failed.");
ZH_ERROR_CHECK(err == ESP_OK, err, err = i2c_master_bus_rm_device(handle->dev_handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "I2C remove device failed."); err = gpio_isr_handler_remove((gpio_num_t)config->interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Remove gpio isr handler failed."); err = gpio_reset_pin((gpio_num_t)config->interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Reset gpio failed."); err = zh_vector_free(&_vector);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Free vector failed."); vSemaphoreDelete(_interrupt_semaphore), "PCF8574 initialization failed. Task initialization failed.");
}
if (_stats.min_stack_size == 0)
{
@@ -74,27 +82,36 @@ esp_err_t zh_pcf8574_init(const zh_pcf8574_init_config_t *config, zh_pcf8574_han
return ESP_OK;
}
esp_err_t zh_pcf8574_deinit(zh_pcf8574_handle_t *handle)
esp_err_t zh_pcf8574_deinit(zh_pcf8574_handle_t *handle) // -V2008
{
ZH_LOGI("PCF8574 deinitialization started.");
ZH_ERROR_CHECK(handle != NULL, ESP_ERR_INVALID_ARG, NULL, "PCF8574 deinitialization failed. Invalid argument.");
ZH_ERROR_CHECK(handle->is_initialized == true, ESP_ERR_INVALID_STATE, NULL, "PCF8574 deinitialization failed. PCF8574 not initialized.");
if (_interrupt_gpio < GPIO_NUM_MAX && handle->gpio_work_mode != 0)
{
for (uint16_t i = 0; i < zh_vector_get_size(&_vector); ++i)
int16_t vector_size = (int16_t)zh_vector_get_size(&_vector);
ZH_ERROR_CHECK(vector_size != ESP_FAIL, ESP_ERR_INVALID_STATE, NULL, "PCF8574 deinitialization failed. Vector get size fail.");
for (uint16_t i = 0; i < vector_size; ++i)
{
zh_pcf8574_handle_t *temp_handle = zh_vector_get_item(&_vector, i);
ZH_ERROR_CHECK(temp_handle != NULL, ESP_ERR_INVALID_STATE, NULL, "PCF8574 deinitialization failed. Vector get item fail.");
if (handle->i2c_address == temp_handle->i2c_address)
{
zh_vector_delete_item(&_vector, i);
esp_err_t err = zh_vector_delete_item(&_vector, i);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "PCF8574 deinitialization failed. Vector delete item fail.");
break;
}
}
if (zh_vector_get_size(&_vector) == 0)
vector_size = (int16_t)zh_vector_get_size(&_vector);
ZH_ERROR_CHECK(vector_size != ESP_FAIL, ESP_ERR_INVALID_STATE, NULL, "PCF8574 deinitialization failed. Vector get size fail.");
if (vector_size == 0)
{
gpio_isr_handler_remove((gpio_num_t)_interrupt_gpio);
gpio_reset_pin((gpio_num_t)_interrupt_gpio);
zh_vector_free(&_vector);
esp_err_t err = gpio_isr_handler_remove((gpio_num_t)_interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "PCF8574 deinitialization failed. Remove gpio isr handler failed.");
err = gpio_reset_pin((gpio_num_t)_interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "PCF8574 deinitialization failed. Reset gpio failed.");
err = zh_vector_free(&_vector);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "PCF8574 deinitialization failed. Free vector failed.");
vSemaphoreDelete(_interrupt_semaphore);
vTaskDelete(zh_pcf8574);
_interrupt_gpio = GPIO_NUM_MAX;
@@ -104,7 +121,8 @@ esp_err_t zh_pcf8574_deinit(zh_pcf8574_handle_t *handle)
{
heap_caps_free(handle->system);
}
i2c_master_bus_rm_device(handle->dev_handle);
esp_err_t err = i2c_master_bus_rm_device(handle->dev_handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "PCF8574 deinitialization failed. I2C remove device failed.");
handle->is_initialized = false;
for (uint8_t i = 0; i < sizeof(_i2c_matrix); ++i)
{
@@ -221,16 +239,19 @@ static esp_err_t _zh_pcf8574_gpio_init(const zh_pcf8574_init_config_t *config, z
uint8_t reg_temp = 0;
if (_interrupt_gpio != GPIO_NUM_MAX)
{
_zh_pcf8574_read_register(handle, &reg_temp);
esp_err_t err = zh_vector_push_back(&_vector, handle);
esp_err_t err = _zh_pcf8574_read_register(handle, &reg_temp);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Failed to read expander register.");
err = zh_vector_push_back(&_vector, handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Failed add item to vector.")
return ESP_OK;
}
esp_err_t err = zh_vector_init(&_vector, sizeof(zh_pcf8574_handle_t));
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Failed create vector.")
_zh_pcf8574_read_register(handle, &reg_temp);
err = _zh_pcf8574_read_register(handle, &reg_temp);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Failed to read expander register.");
err = zh_vector_push_back(&_vector, handle);
ZH_ERROR_CHECK(err == ESP_OK, err, zh_vector_free(&_vector), "Failed add item to vector.")
ZH_ERROR_CHECK(err == ESP_OK, err, err = zh_vector_free(&_vector);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Free vector failed."), "Failed add item to vector.")
gpio_config_t interrupt_gpio_config = {
.intr_type = GPIO_INTR_NEGEDGE,
.mode = GPIO_MODE_INPUT,
@@ -239,11 +260,16 @@ static esp_err_t _zh_pcf8574_gpio_init(const zh_pcf8574_init_config_t *config, z
.pull_up_en = GPIO_PULLUP_ENABLE,
};
err = gpio_config(&interrupt_gpio_config);
ZH_ERROR_CHECK(err == ESP_OK, err, zh_vector_free(&_vector), "GPIO configuration failed.")
ZH_ERROR_CHECK(err == ESP_OK, err, err = zh_vector_free(&_vector);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Free vector failed."), "GPIO configuration failed.")
err = gpio_install_isr_service(ESP_INTR_FLAG_LOWMED);
ZH_ERROR_CHECK(err == ESP_OK || err == ESP_ERR_INVALID_STATE, err, gpio_reset_pin((gpio_num_t)config->interrupt_gpio); zh_vector_free(&_vector), "Failed install isr service.")
ZH_ERROR_CHECK(err == ESP_OK || err == ESP_ERR_INVALID_STATE, err, err = gpio_reset_pin((gpio_num_t)config->interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Reset gpio failed."); err = zh_vector_free(&_vector);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Free vector failed."), "Failed install isr service.")
err = gpio_isr_handler_add((gpio_num_t)config->interrupt_gpio, _zh_pcf8574_isr_handler, NULL);
ZH_ERROR_CHECK(err == ESP_OK, err, gpio_reset_pin((gpio_num_t)config->interrupt_gpio); zh_vector_free(&_vector), "Failed add isr handler.")
ZH_ERROR_CHECK(err == ESP_OK, err, err = gpio_reset_pin((gpio_num_t)config->interrupt_gpio);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Reset gpio failed."); err = zh_vector_free(&_vector);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Free vector failed."), "Failed add isr handler.")
_interrupt_gpio = config->interrupt_gpio;
return ESP_OK;
}
@@ -259,7 +285,8 @@ static esp_err_t _zh_pcf8574_i2c_init(const zh_pcf8574_init_config_t *config, zh
esp_err_t err = i2c_master_bus_add_device(config->i2c_handle, &pcf8574_config, &_dev_handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "Failed to add I2C device.");
err = i2c_master_probe(config->i2c_handle, config->i2c_address, 1000 / portTICK_PERIOD_MS);
ZH_ERROR_CHECK(err == ESP_OK, err, i2c_master_bus_rm_device(_dev_handle), "Expander not connected or not responding.");
ZH_ERROR_CHECK(err == ESP_OK, err, err = i2c_master_bus_rm_device(_dev_handle);
ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "I2C remove device failed."), "Expander not connected or not responding.");
handle->dev_handle = _dev_handle;
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) |
@@ -301,40 +328,49 @@ static void IRAM_ATTR _zh_pcf8574_isr_processing_task(void *pvParameter)
for (;;)
{
xSemaphoreTake(_interrupt_semaphore, portMAX_DELAY);
for (uint16_t i = 0; i < zh_vector_get_size(&_vector); ++i)
int16_t vector_size = (int16_t)zh_vector_get_size(&_vector);
if (vector_size == ESP_FAIL)
{
zh_pcf8574_handle_t *handle = zh_vector_get_item(&_vector, i);
if (handle == NULL)
++_stats.vector_error;
ZH_LOGE("PCF8574 isr processing failed. Failed to get vector size.", ESP_FAIL);
}
else
{
for (uint16_t i = 0; i < vector_size; ++i)
{
++_stats.vector_error;
ZH_LOGE("PCF8574 isr processing failed. Failed to get vector item data.", ESP_FAIL);
continue;
}
zh_pcf8574_event_on_isr_t event = {0};
event.i2c_address = handle->i2c_address;
uint8_t old_reg = handle->gpio_status;
uint8_t new_reg = 0;
esp_err_t err = _zh_pcf8574_read_register(handle, &new_reg);
if (err != ESP_OK)
{
ZH_LOGE("PCF8574 isr processing failed. Failed to read expander register.", err);
continue;
}
for (uint8_t j = 0; j <= 7; ++j)
{
if ((handle->gpio_work_mode & _gpio_matrix[j]) != 0)
zh_pcf8574_handle_t *handle = zh_vector_get_item(&_vector, i);
if (handle == NULL)
{
if ((old_reg & _gpio_matrix[j]) != (new_reg & _gpio_matrix[j]))
++_stats.vector_error;
ZH_LOGE("PCF8574 isr processing failed. Failed to get vector item data.", ESP_FAIL);
continue;
}
zh_pcf8574_event_on_isr_t event = {0};
event.i2c_address = handle->i2c_address;
uint8_t old_reg = handle->gpio_status;
uint8_t new_reg = 0;
esp_err_t err = _zh_pcf8574_read_register(handle, &new_reg);
if (err != ESP_OK)
{
ZH_LOGE("PCF8574 isr processing failed. Failed to read expander register.", err);
continue;
}
for (uint8_t j = 0; j <= 7; ++j)
{
if ((handle->gpio_work_mode & _gpio_matrix[j]) != 0)
{
event.gpio_number = j;
event.gpio_level = new_reg & _gpio_matrix[j];
event.interrupt_time = esp_timer_get_time();
err = esp_event_post(ZH_PCF8574, 0, &event, sizeof(event), 1000 / portTICK_PERIOD_MS);
if (err != ESP_OK)
if ((old_reg & _gpio_matrix[j]) != (new_reg & _gpio_matrix[j]))
{
++_stats.event_post_error;
ZH_LOGE("PCF8574 isr processing failed. Failed to post interrupt event.", err);
continue;
event.gpio_number = j;
event.gpio_level = new_reg & _gpio_matrix[j];
event.interrupt_time = esp_timer_get_time();
err = esp_event_post(ZH_PCF8574, 0, &event, sizeof(event), 1000 / portTICK_PERIOD_MS);
if (err != ESP_OK)
{
++_stats.event_post_error;
ZH_LOGE("PCF8574 isr processing failed. Failed to post interrupt event.", err);
continue;
}
}
}
}