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/*
* The Clear BSD License
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted (subject to the limitations in the disclaimer below) provided
* that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* o Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "fsl_utick.h"
#include "fsl_power.h"
/*******************************************************************************
* Definitions
******************************************************************************/
/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.utick"
#endif
/* Typedef for interrupt handler. */
typedef void (*utick_isr_t)(UTICK_Type *base, utick_callback_t cb);
/*******************************************************************************
* Prototypes
******************************************************************************/
/*!
* @brief Gets the instance from the base address
*
* @param base UTICK peripheral base address
*
* @return The UTICK instance
*/
static uint32_t UTICK_GetInstance(UTICK_Type *base);
/*******************************************************************************
* Variables
******************************************************************************/
/* Array of UTICK handle. */
static utick_callback_t s_utickHandle[FSL_FEATURE_SOC_UTICK_COUNT];
/* Array of UTICK peripheral base address. */
static UTICK_Type *const s_utickBases[] = UTICK_BASE_PTRS;
/* Array of UTICK IRQ number. */
static const IRQn_Type s_utickIRQ[] = UTICK_IRQS;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Array of UTICK clock name. */
static const clock_ip_name_t s_utickClock[] = UTICK_CLOCKS;
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
/* UTICK ISR for transactional APIs. */
static utick_isr_t s_utickIsr;
/*******************************************************************************
* Code
******************************************************************************/
static uint32_t UTICK_GetInstance(UTICK_Type *base)
{
uint32_t instance;
/* Find the instance index from base address mappings. */
for (instance = 0; instance < ARRAY_SIZE(s_utickBases); instance++)
{
if (s_utickBases[instance] == base)
{
break;
}
}
assert(instance < ARRAY_SIZE(s_utickBases));
return instance;
}
void UTICK_SetTick(UTICK_Type *base, utick_mode_t mode, uint32_t count, utick_callback_t cb)
{
uint32_t instance;
/* Get instance from peripheral base address. */
instance = UTICK_GetInstance(base);
/* Save the handle in global variables to support the double weak mechanism. */
s_utickHandle[instance] = cb;
EnableDeepSleepIRQ(s_utickIRQ[instance]);
base->CTRL = count | UTICK_CTRL_REPEAT(mode);
}
void UTICK_Init(UTICK_Type *base)
{
/* Enable utick clock */
CLOCK_EnableClock(s_utickClock[UTICK_GetInstance(base)]);
/* Power up Watchdog oscillator*/
POWER_DisablePD(kPDRUNCFG_PD_WDT_OSC);
s_utickIsr = UTICK_HandleIRQ;
}
void UTICK_Deinit(UTICK_Type *base)
{
/* Turn off utick */
base->CTRL = 0;
/* Disable utick clock */
CLOCK_DisableClock(s_utickClock[UTICK_GetInstance(base)]);
}
uint32_t UTICK_GetStatusFlags(UTICK_Type *base)
{
return (base->STAT);
}
void UTICK_ClearStatusFlags(UTICK_Type *base)
{
base->STAT = UTICK_STAT_INTR_MASK;
}
void UTICK_HandleIRQ(UTICK_Type *base, utick_callback_t cb)
{
UTICK_ClearStatusFlags(base);
if (cb)
{
cb();
}
}
#if defined(UTICK0)
void UTICK0_DriverIRQHandler(void)
{
s_utickIsr(UTICK0, s_utickHandle[0]);
/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
exception return operation might vector to incorrect interrupt */
#if defined __CORTEX_M && (__CORTEX_M == 4U)
__DSB();
#endif
}
#endif
#if defined(UTICK1)
void UTICK1_DriverIRQHandler(void)
{
s_utickIsr(UTICK1, s_utickHandle[1]);
/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
exception return operation might vector to incorrect interrupt */
#if defined __CORTEX_M && (__CORTEX_M == 4U)
__DSB();
#endif
}
#endif
#if defined(UTICK2)
void UTICK2_DriverIRQHandler(void)
{
s_utickIsr(UTICK2, s_utickHandle[2]);
/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping
exception return operation might vector to incorrect interrupt */
#if defined __CORTEX_M && (__CORTEX_M == 4U)
__DSB();
#endif
}
#endif
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