dl_systick.h

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 * Copyright (c) 2020, Texas Instruments Incorporated
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/*!****************************************************************************
 *  @file       dl_systick.h
 *  @brief      System Tick Timer (SysTick) Driver Library
 *  @defgroup   SYSTICK M0P System Tick Timer (SysTick)
 *
 *  @anchor ti_dl_m0p_dl_systick_Overview
 *  # Overview
 *
 *  SysTick is a simple timer that is part of the Cortex-M architecture. Its
 *  intended purpose is to provide a periodic interrupt for an RTOS, but it can
 *  be used for other simple timing purposes.
 *
 *  <hr>
 ******************************************************************************
 */
#ifndef ti_dl_m0p_dl_systick__include
#define ti_dl_m0p_dl_systick__include

#include <stdbool.h>
#include <stdint.h>

#include <ti/devices/msp/msp.h>

#ifdef __cplusplus
extern "C" {
#endif

/* clang-format off */

#define DL_SYSTICK_config(x)                                   SysTick_Config(x)

/* clang-format on */

__STATIC_INLINE void DL_SYSTICK_init(uint32_t period)
{
    SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk;
    SysTick->LOAD = period - (uint32_t) 1;
    SysTick->VAL  = 0;
}

__STATIC_INLINE void DL_SYSTICK_setPeriod(uint32_t period)
{
    SysTick->LOAD = period - (uint32_t) 1;
}

__STATIC_INLINE void DL_SYSTICK_resetValue(void)
{
    SysTick->VAL = 0;
}

__STATIC_INLINE uint32_t DL_SYSTICK_getPeriod(void)
{
    return (SysTick->LOAD + (uint32_t) 1);
}

__STATIC_INLINE uint32_t DL_SYSTICK_getValue(void)
{
    return SysTick->VAL;
}

__STATIC_INLINE void DL_SYSTICK_enableInterrupt(void)
{
    SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk;
}

__STATIC_INLINE void DL_SYSTICK_disableInterrupt(void)
{
    SysTick->CTRL &= ~(SysTick_CTRL_TICKINT_Msk);
}

__STATIC_INLINE void DL_SYSTICK_enable(void)
{
    SysTick->CTRL |= (SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_ENABLE_Msk);
}

__STATIC_INLINE void DL_SYSTICK_disable(void)
{
    SysTick->CTRL &= ~(SysTick_CTRL_ENABLE_Msk);
}

__STATIC_INLINE bool DL_SYSTICK_isEnabled(void)
{
    return (
        (SysTick->CTRL & SysTick_CTRL_ENABLE_Msk) == SysTick_CTRL_ENABLE_Msk);
}

#ifdef __cplusplus
}
#endif

#endif /* ti_dl_m0p_dl_systick__include */