leds_driver.c

 
#include "cmsis_os.h"
#include "leds_driver.h"
 
//TODO: check this, it was made in a hurry and it seems quite shitty, could be greatly improved in a minimal amount of time
 
/***============================================================================================================================
 * Private variables definitions
 * These variables are only accessible from within the file's scope
 *=============================================================================================================================*/
 
static led_driver_s this = LED_DRIVER_DEFAULT;
static const led_driver_pin_e LED_PINS[LED_DRIVER_COUNT] = {
    LED_STATE_PIN,
    LED_ERROR_PIN,
    LED_NETWORK_PIN
};
 
 
/***============================================================================================================================
 * Private functions definitions
 * These functions are only accessible from within the file's scope
 *=============================================================================================================================*/
 
led_driver_led_s _leds_driver_init_led(led_driver_pin_e pin){
 
    led_driver_led_s led = {pin, LED_OFF};
 
    GPIO_InitTypeDef led_init = {0};
    HAL_GPIO_WritePin(LED_DRIVER_PORT, pin, GPIO_PIN_RESET);
 
    led_init.Pin   = pin;
    led_init.Mode  = GPIO_MODE_OUTPUT_PP;
    led_init.Pull  = GPIO_NOPULL;
    led_init.Speed = GPIO_SPEED_FREQ_LOW;
 
    HAL_GPIO_Init(LED_DRIVER_PORT, &led_init);
 
    return led;
 
}
 
static void _leds_driver_manage(void *arg){
    for(;;){
        for(uint8_t i=0; i< LED_DRIVER_COUNT; i++){
            switch(this.leds[i].state){
                case LED_ON:
                    HAL_GPIO_WritePin(LED_DRIVER_PORT, this.leds[i].pin, LED_ON);
                    break;
                case LED_OFF:
                    HAL_GPIO_WritePin(LED_DRIVER_PORT, this.leds[i].pin, LED_OFF);
                    break;
                case LED_BLINK:
                    HAL_GPIO_TogglePin(LED_DRIVER_PORT, this.leds[i].pin);
                    break;
            }
        }
        osDelay(LED_DRIVER_BLINK_RATE);
    }
}
 
 
/***============================================================================================================================
 * Public functions definitions
 * These functions can be accessed outside of the file's scope
 * @see leds_driver.h for declarations
 *=============================================================================================================================*/
 
void leds_driver_init(void){
 
    if(this.status == LED_DRIVER_UNINITIALISED){
 
        for(uint8_t i=0; i< LED_DRIVER_COUNT; i++){
            this.leds[i] = _leds_driver_init_led(LED_PINS[i]);
        }
 
        osThreadNew(_leds_driver_manage, NULL, NULL);
 
        this.status = LED_DRIVER_INITIALISED;
 
    }
 
}
 
void leds_driver_set(led_driver_led_e led, led_driver_led_state_e state){
    this.leds[led].state = state;
}