led.c

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 *
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/**
 * @file    led.c
 * @author  foxBMS Team
 * @date    2021-09-28 (date of creation)
 * @updated 2021-10-05 (date of last update)
 * @ingroup DRIVERS
 * @prefix  LED
 *
 * @brief   Implementation of the debug LED driver
 *
 */
 
/*========== Includes =======================================================*/
#include "led.h"
 
#include "ftask_cfg.h"
 
#include "HL_reg_het.h"
 
#include "io.h"
 
/*========== Macros and Definitions =========================================*/
/** Periodic call time of function #LED_Trigger */
#define LED_PERIODIC_CALL_TIME_ms (FTSK_TASK_CYCLIC_100MS_CYCLE_TIME)
 
/** HET1 GIO register that the Debug LED is connected to. */
#define LED_PORT (hetREG1)
/** Pin of HET1 that the Debug LED is connected to. */
#define LED_PIN (1u)
 
/*========== Static Constant and Variable Definitions =======================*/
/** duration of a half a LED blink cycle in ms */
uint32_t led_onOffTime_ms = 0u;
 
/*========== Extern Constant and Variable Definitions =======================*/
 
/*========== Static Function Prototypes =====================================*/
 
/*========== Static Function Implementations ================================*/
 
/*========== Extern Function Implementations ================================*/
extern void LED_SetDebugLED(void) {
    IO_PinSet(&LED_PORT->DOUT, LED_PIN);
}
 
extern void LED_Trigger(void) {
    OS_EnterTaskCritical();
    uint32_t local_led_onOffTime_ms = led_onOffTime_ms;
    OS_ExitTaskCritical();
 
    static uint32_t counter = 0u;
    if (counter == UINT32_MAX) {
        /* wrap counter */
        counter = 0u;
    }
    counter++;
    FAS_ASSERT(local_led_onOffTime_ms != 0u);
    if (0u == (((uint64_t)counter * LED_PERIODIC_CALL_TIME_ms) % local_led_onOffTime_ms)) {
        if (STD_PIN_HIGH == IO_PinGet(&LED_PORT->DIN, LED_PIN)) {
            IO_PinReset(&LED_PORT->DOUT, LED_PIN);
        } else {
            IO_PinSet(&LED_PORT->DOUT, LED_PIN);
        }
        counter = 0u;
    }
}
 
extern void LED_SetToggleTime(uint32_t onOffTime_ms) {
    FAS_ASSERT(0u == (onOffTime_ms % LED_PERIODIC_CALL_TIME_ms));
    led_onOffTime_ms = onOffTime_ms;
    FAS_ASSERT(led_onOffTime_ms != 0u);
}
 
/*========== Externalized Static Function Implementations (Unit Test) =======*/