alexey.zholtikov/zh_pcf8574
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refactor: major refactoring

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This commit is contained in:
Alexey Zholtikov
2025-05-08 17:58:01 +03:00
parent ceb50a2fb7
commit c6b2449e51
2 changed files with 13 additions and 13 deletions
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12
README.md
View File

@ -47,7 +47,7 @@ One expander on bus. All GPIO's as output (except P0 - input). Interrupt is enab
#define I2C_PORT (I2C_NUM_MAX - 1)
#ifndef CONFIG_IDF_TARGET_ESP8266
i2c_master_bus_handle_t i2c_bus_handle = {0};
i2c_master_bus_handle_t i2c_bus_handle = NULL;
#endif
zh_pcf8574_handle_t pcf8574_handle = {0};
@ -103,7 +103,7 @@ void app_main(void)
pcf8574_init_config.i2c_handle = i2c_bus_handle;
#endif
pcf8574_init_config.i2c_address = 0x38;
pcf8574_init_config.p0_gpio_work_mode = EXP_GPIO_INPUT; // Required only for input GPIO.
pcf8574_init_config.p0_gpio_work_mode = true; // Required only for input GPIO.
pcf8574_init_config.interrupt_gpio = GPIO_NUM_14; // Required only if used input GPIO interrupts.
zh_pcf8574_init(&pcf8574_init_config, &pcf8574_handle);
uint8_t reg = 0;
@ -114,13 +114,13 @@ void app_main(void)
zh_pcf8574_read(&pcf8574_handle, &reg);
print_gpio_status("GPIO status: ", reg);
printf("Sets P0 to 0.\n");
zh_pcf8574_write_gpio(&pcf8574_handle, EXP_GPIO_NUM_P0, 0); // GPIO P0 will not be changed because it is operating in input mode.
zh_pcf8574_write_gpio(&pcf8574_handle, 0, false); // GPIO P0 will not be changed because it is operating in input mode.
bool gpio = 0;
zh_pcf8574_read_gpio(&pcf8574_handle, EXP_GPIO_NUM_P0, &gpio);
zh_pcf8574_read_gpio(&pcf8574_handle, 0, &gpio);
printf("P0 status: %d.\n", gpio);
printf("Set P1 to 0.\n");
zh_pcf8574_write_gpio(&pcf8574_handle, EXP_GPIO_NUM_P1, 0);
zh_pcf8574_read_gpio(&pcf8574_handle, EXP_GPIO_NUM_P1, &gpio);
zh_pcf8574_write_gpio(&pcf8574_handle, 1, false);
zh_pcf8574_read_gpio(&pcf8574_handle, 1, &gpio);
printf("P1 status: %d.\n", gpio);
zh_pcf8574_read(&pcf8574_handle, &reg);
print_gpio_status("GPIO status: ", reg);

12
zh_pcf8574.c
View File

@ -22,7 +22,7 @@ static zh_vector_t _vector = {0};
static esp_err_t _zh_pcf8574_validate_config(const zh_pcf8574_init_config_t *config);
static esp_err_t _zh_pcf8574_configure_i2c_device(const zh_pcf8574_init_config_t *config, zh_pcf8574_handle_t *handle);
static esp_err_t _zh_pcf8574_configure_interrupts(const zh_pcf8574_init_config_t *config, const zh_pcf8574_handle_t *handle);
static esp_err_t _zh_pcf8574_configure_interrupts(const zh_pcf8574_init_config_t *config, const zh_pcf8574_handle_t handle);
static void _zh_pcf8574_isr_handler(void *arg);
static void _zh_pcf8574_isr_processing_task(void *pvParameter);
static esp_err_t _zh_pcf8574_read_register(zh_pcf8574_handle_t *handle, uint8_t *reg);
@ -53,7 +53,7 @@ esp_err_t zh_pcf8574_init(const zh_pcf8574_init_config_t *config, zh_pcf8574_han
ZH_PCF8574_LOGI("GPIO setup completed successfully.");
if (config->interrupt_gpio < GPIO_NUM_MAX && config->interrupt_gpio > GPIO_NUM_NC && handle->gpio_work_mode != 0)
{
err = _zh_pcf8574_configure_interrupts(config, handle);
err = _zh_pcf8574_configure_interrupts(config, *handle);
if (err != ESP_OK)
{
handle->is_initialized = false;
@ -151,7 +151,7 @@ static esp_err_t _zh_pcf8574_configure_i2c_device(const zh_pcf8574_init_config_t
return ESP_OK;
}
static esp_err_t _zh_pcf8574_configure_interrupts(const zh_pcf8574_init_config_t *config, const zh_pcf8574_handle_t *handle)
static esp_err_t _zh_pcf8574_configure_interrupts(const zh_pcf8574_init_config_t *config, const zh_pcf8574_handle_t handle)
{
if (_interrupt_gpio != GPIO_NUM_MAX)
{
@ -189,7 +189,7 @@ static esp_err_t _zh_pcf8574_configure_interrupts(const zh_pcf8574_init_config_t
tskNO_AFFINITY);
if (x_err != pdPASS)
{
ZH_PCF8574_LOGE("Failed to create ISR processing task.");
ZH_PCF8574_LOGE("Failed to create isr processing task.");
vSemaphoreDelete(_interrupt_semaphore);
return ESP_FAIL;
}
@ -252,7 +252,7 @@ static void IRAM_ATTR _zh_pcf8574_isr_processing_task(void *pvParameter)
vTaskDelete(NULL);
}
esp_err_t _zh_pcf8574_read_register(zh_pcf8574_handle_t *handle, uint8_t *reg)
static esp_err_t _zh_pcf8574_read_register(zh_pcf8574_handle_t *handle, uint8_t *reg)
{
ZH_PCF8574_LOGI("PCF8574 read started.");
ZH_PCF8574_CHECK(handle != NULL || reg != NULL, ESP_ERR_INVALID_ARG, "PCF8574 read failed. Invalid argument.");
@ -274,7 +274,7 @@ esp_err_t _zh_pcf8574_read_register(zh_pcf8574_handle_t *handle, uint8_t *reg)
return ESP_OK;
}
esp_err_t _zh_pcf8574_write_register(zh_pcf8574_handle_t *handle, uint8_t reg)
static esp_err_t _zh_pcf8574_write_register(zh_pcf8574_handle_t *handle, uint8_t reg)
{
ZH_PCF8574_LOGI("PCF8574 write started.");
ZH_PCF8574_CHECK(handle != NULL, ESP_ERR_INVALID_ARG, "PCF8574 write failed. Invalid argument.");