feat: added all gpio support

README.md

@@ -9,7 +9,7 @@
 ## Note
 
 1. Enable interrupt support only if input GPIO's are used.
-2. All the INT GPIO's on the extenders must be connected to the one GPIO on AVR. Only PORTD0 - PORTD7 are acceptable!
+2. All the INT GPIO's on the extenders must be connected to the one GPIO on AVR.
 3. The input GPIO's are always pullup to the power supply.
 
 ## Dependencies
@@ -52,11 +52,11 @@ One expander on bus. All GPIO's as output (except P0 - input). Interrupt is enab
 
 int usart(char byte, FILE *stream)
 {
-	while ((UCSR0A & (1 << UDRE0)) == 0)
+    while ((UCSR0A & (1 << UDRE0)) == 0)
-	{
+    {
-	}
+    }
-	UDR0 = byte;
+    UDR0 = byte;
-	return 0;
+    return 0;
 }
 FILE uart = FDEV_SETUP_STREAM(usart, NULL, _FDEV_SETUP_WRITE);
 
@@ -64,74 +64,74 @@ zh_avr_pcf8574_handle_t pcf8574_handle = {0};
 
 void print_gpio_status(const char *message, uint8_t reg)
 {
-	printf("%s", message);
+    printf("%s", message);
-	for (uint8_t i = 0; i < 8; ++i)
+    for (uint8_t i = 0; i < 8; ++i)
-	{
+    {
-		printf("%c", (reg & 0x80) ? '1' : '0');
+        printf("%c", (reg & 0x80) ? '1' : '0');
-		reg <<= 1;
+        reg <<= 1;
-	}
+    }
-	printf(".\n");
+    printf(".\n");
 }
 
 void pcf8574_example_task(void *pvParameters)
 {
-	zh_avr_i2c_master_init(false);
+    zh_avr_i2c_master_init(false);
-	zh_avr_pcf8574_init_config_t pcf8574_init_config = ZH_AVR_PCF8574_INIT_CONFIG_DEFAULT();
+    zh_avr_pcf8574_init_config_t pcf8574_init_config = ZH_AVR_PCF8574_INIT_CONFIG_DEFAULT();
-	pcf8574_init_config.i2c_address = 0x38;
+    pcf8574_init_config.i2c_address = 0x38;
-	pcf8574_init_config.p0_gpio_work_mode = true;	// Required only for input GPIO.
+    pcf8574_init_config.p0_gpio_work_mode = true;   // Required only for input GPIO.
-	pcf8574_init_config.interrupt_port = AVR_PORTD; // Required only if used input GPIO interrupts.
+    pcf8574_init_config.interrupt_port = AVR_PORTD; // Required only if used input GPIO interrupts.
-	pcf8574_init_config.interrupt_gpio = PORTD4;	// Required only if used input GPIO interrupts.
+    pcf8574_init_config.interrupt_gpio = PORTD4;    // Required only if used input GPIO interrupts.
-	zh_avr_pcf8574_init(&pcf8574_init_config, &pcf8574_handle);
+    zh_avr_pcf8574_init(&pcf8574_init_config, &pcf8574_handle);
-	uint8_t reg = 0;
+    uint8_t reg = 0;
-	zh_avr_pcf8574_read(&pcf8574_handle, &reg);
+    zh_avr_pcf8574_read(&pcf8574_handle, &reg);
-	print_gpio_status("GPIO status: ", reg);
+    print_gpio_status("GPIO status: ", reg);
-	printf("Set P7 to 1, P1 to 1 and P0 to 0.\n");
+    printf("Set P7 to 1, P1 to 1 and P0 to 0.\n");
-	zh_avr_pcf8574_write(&pcf8574_handle, 0b10000010); // GPIO P0 will not be changed because it is operating in input mode.
+    zh_avr_pcf8574_write(&pcf8574_handle, 0b10000010); // GPIO P0 will not be changed because it is operating in input mode.
-	zh_avr_pcf8574_read(&pcf8574_handle, &reg);
+    zh_avr_pcf8574_read(&pcf8574_handle, &reg);
-	print_gpio_status("GPIO status: ", reg);
+    print_gpio_status("GPIO status: ", reg);
-	printf("Sets P0 to 0.\n");
+    printf("Sets P0 to 0.\n");
-	zh_avr_pcf8574_write_gpio(&pcf8574_handle, 0, false); // GPIO P0 will not be changed because it is operating in input mode.
+    zh_avr_pcf8574_write_gpio(&pcf8574_handle, 0, false); // GPIO P0 will not be changed because it is operating in input mode.
-	bool gpio = 0;
+    bool gpio = 0;
-	zh_avr_pcf8574_read_gpio(&pcf8574_handle, 0, &gpio);
+    zh_avr_pcf8574_read_gpio(&pcf8574_handle, 0, &gpio);
-	printf("P0 status: %d.\n", gpio);
+    printf("P0 status: %d.\n", gpio);
-	printf("Set P1 to 0.\n");
+    printf("Set P1 to 0.\n");
-	zh_avr_pcf8574_write_gpio(&pcf8574_handle, 1, false);
+    zh_avr_pcf8574_write_gpio(&pcf8574_handle, 1, false);
-	zh_avr_pcf8574_read_gpio(&pcf8574_handle, 1, &gpio);
+    zh_avr_pcf8574_read_gpio(&pcf8574_handle, 1, &gpio);
-	printf("P1 status: %d.\n", gpio);
+    printf("P1 status: %d.\n", gpio);
-	zh_avr_pcf8574_read(&pcf8574_handle, &reg);
+    zh_avr_pcf8574_read(&pcf8574_handle, &reg);
-	print_gpio_status("GPIO status: ", reg);
+    print_gpio_status("GPIO status: ", reg);
-	printf("Reset all GPIO.\n");
+    printf("Reset all GPIO.\n");
-	zh_avr_pcf8574_reset(&pcf8574_handle);
+    zh_avr_pcf8574_reset(&pcf8574_handle);
-	zh_avr_pcf8574_read(&pcf8574_handle, &reg);
+    zh_avr_pcf8574_read(&pcf8574_handle, &reg);
-	print_gpio_status("GPIO status: ", reg);
+    print_gpio_status("GPIO status: ", reg);
-	printf("Task Remaining Stack Size %d.\n", uxTaskGetStackHighWaterMark(NULL));
+    printf("Task Remaining Stack Size %d.\n", uxTaskGetStackHighWaterMark(NULL));
-	vTaskDelete(NULL);
+    vTaskDelete(NULL);
 }
 int main(void)
 {
-	UBRR0H = (BAUD_PRESCALE >> 8);
+    UBRR0H = (BAUD_PRESCALE >> 8);
-	UBRR0L = BAUD_PRESCALE;
+    UBRR0L = BAUD_PRESCALE;
-	UCSR0B = (1 << RXEN0) | (1 << TXEN0);
+    UCSR0B = (1 << RXEN0) | (1 << TXEN0);
-	UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
+    UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
-	stdout = &uart;
+    stdout = &uart;
-	xTaskCreate(pcf8574_example_task, "pcf8574 example task", 124, NULL, tskIDLE_PRIORITY, NULL);
+    xTaskCreate(pcf8574_example_task, "pcf8574 example task", 124, NULL, tskIDLE_PRIORITY, NULL);
-	vTaskStartScheduler();
+    vTaskStartScheduler();
-	return 0;
+    return 0;
 }
 
 void zh_avr_pcf8574_event_handler(zh_avr_pcf8574_event_on_isr_t *event) // Do not delete! Leave blank if interrupts are not used.
 {
-	printf("Interrupt happened on device address 0x%02X on GPIO number %d at level %d.\n", event->i2c_address, event->gpio_number, event->gpio_level);
+    printf("Interrupt happened on device address 0x%02X on GPIO number %d at level %d.\n", event->i2c_address, event->gpio_number, event->gpio_level);
-	printf("Interrupt Task Remaining Stack Size %d.\n", uxTaskGetStackHighWaterMark(NULL));
+    printf("Interrupt Task Remaining Stack Size %d.\n", uxTaskGetStackHighWaterMark(NULL));
 }
 
 // ISR(PCINT0_vect) // For AVR_PORTB. Required only if used input GPIO interrupts.
 // ISR(PCINT1_vect) // For AVR_PORTC. Required only if used input GPIO interrupts.
 ISR(PCINT2_vect) // For AVR_PORTD. Required only if used input GPIO interrupts.
 {
-	if (zh_avr_pcf8574_isr_handler() == pdTRUE)
+    if (zh_avr_pcf8574_isr_handler() == pdTRUE)
-	{
+    {
-		portYIELD();
+        portYIELD();
-	}
+    }
 }
 ```

include/zh_avr_pcf8574.h

@@ -44,7 +44,7 @@ extern "C"
         bool p6_gpio_work_mode; // Expander GPIO P6 work mode. True for input, false for output.
         bool p7_gpio_work_mode; // Expander GPIO P7 work mode. True for input, false for output.
         uint8_t interrupt_gpio; // Interrupt GPIO. @attention Must be same for all PCF8574 expanders.
-        uint8_t interrupt_port; // Interrupt port. @attention Must be same for all PCF8574 expanders.
+        uint8_t interrupt_port; // Interrupt port.
     } zh_avr_pcf8574_init_config_t;
 
     typedef struct // PCF8574 expander handle.

zh_avr_pcf8574.c

@@ -82,7 +82,7 @@ static avr_err_t _zh_avr_pcf8574_validate_config(const zh_avr_pcf8574_init_confi
     ZH_ERROR_CHECK(config != NULL, AVR_ERR_INVALID_ARG);
     ZH_ERROR_CHECK((config->i2c_address >= 0x20 && config->i2c_address <= 0x27) || (config->i2c_address >= 0x38 && config->i2c_address <= 0x3F), AVR_ERR_INVALID_ARG);
     ZH_ERROR_CHECK(config->task_priority > tskIDLE_PRIORITY && config->stack_size >= 124, AVR_ERR_INVALID_ARG);
-    ZH_ERROR_CHECK(config->interrupt_gpio == 0xFF || (config->interrupt_gpio >= PORTD0 && config->interrupt_gpio <= PORTD7), AVR_ERR_INVALID_ARG);
+    ZH_ERROR_CHECK(config->interrupt_gpio == 0xFF || (config->interrupt_gpio >= 0 && config->interrupt_gpio <= 7), AVR_ERR_INVALID_ARG);
     if (config->interrupt_gpio != 0xFF)
     {
         ZH_ERROR_CHECK(config->interrupt_port >= AVR_PORTB && config->interrupt_port <= AVR_PORTD, AVR_ERR_INVALID_ARG);