feat: updated supported interrupt pins

.gitignore

@@ -0,0 +1 @@
+.DS_Store

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 PORTD4 - PORTD7 are acceptable!
+2. All the INT GPIO's on the extenders must be connected to the one GPIO on AVR. Only PORTD0 - PORTD7 are acceptable!
 3. The input GPIO's are always pullup to the power supply.
 
 ## Dependencies
@@ -118,7 +118,7 @@ int main(void)
     return 0;
 }
 
-void zh_avr_pcf8574_event_handler(zh_avr_pcf8574_event_on_isr_t *event) // Required only if used input GPIO interrupts.
+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 Task Remaining Stack Size %d.\n", uxTaskGetStackHighWaterMark(NULL));

include/zh_avr_pcf8574.h

@@ -133,7 +133,7 @@ extern "C"
     /**
      * @brief PCF8574 ISR handler.
      */
-    void zh_avr_pcf8574_isr_handler(void);
+    BaseType_t zh_avr_pcf8574_isr_handler(void);
 
 #ifdef __cplusplus
 }

version.txt

@@ -1 +1 @@
-1.0.0
+1.2.0

zh_avr_pcf8574.c

@@ -81,7 +81,7 @@ 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 == PORTD4 || config->interrupt_gpio == PORTD5 || config->interrupt_gpio == PORTD6 || config->interrupt_gpio == PORTD7, AVR_ERR_INVALID_ARG);
+    ZH_ERROR_CHECK(config->interrupt_gpio == 0xFF || (config->interrupt_gpio >= PORTD0 && config->interrupt_gpio <= PORTD7), AVR_ERR_INVALID_ARG);
     return AVR_OK;
 }
 
@@ -129,17 +129,14 @@ static avr_err_t _zh_avr_pcf8574_configure_interrupts(const zh_avr_pcf8574_init_
     return AVR_OK;
 }
 
-void zh_avr_pcf8574_isr_handler(void)
+BaseType_t zh_avr_pcf8574_isr_handler(void)
 {
+    BaseType_t xHigherPriorityTaskWoken = pdFALSE;
     if ((PIND & (1 << _interrupt_gpio)) == 0)
     {
-        BaseType_t xHigherPriorityTaskWoken = pdFALSE;
         xSemaphoreGiveFromISR(_interrupt_semaphore, &xHigherPriorityTaskWoken);
-        if (xHigherPriorityTaskWoken == pdTRUE)
-        {
-            portYIELD();
-        };
     }
+    return xHigherPriorityTaskWoken;
 }
 
 static void _zh_avr_pcf8574_isr_processing_task(void *pvParameter)