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rt-thread-official/bsp/lpc54114-lite/Libraries/devices/LPC54114/drivers/fsl_gint.c

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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_gint.h"
/* Component ID definition, used by tools. */
#ifndef FSL_COMPONENT_ID
#define FSL_COMPONENT_ID "platform.drivers.gint"
#endif
/*******************************************************************************
* Variables
******************************************************************************/
/*! @brief Pointers to GINT bases for each instance. */
static GINT_Type *const s_gintBases[FSL_FEATURE_SOC_GINT_COUNT] = GINT_BASE_PTRS;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/*! @brief Clocks for each instance. */
static const clock_ip_name_t s_gintClocks[FSL_FEATURE_SOC_GINT_COUNT] = GINT_CLOCKS;
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
/*! @brief Resets for each instance. */
static const reset_ip_name_t s_gintResets[FSL_FEATURE_SOC_GINT_COUNT] = GINT_RSTS;
/* @brief Irq number for each instance */
static const IRQn_Type s_gintIRQ[FSL_FEATURE_SOC_GINT_COUNT] = GINT_IRQS;
/*! @brief Callback function array for GINT(s). */
static gint_cb_t s_gintCallback[FSL_FEATURE_SOC_GINT_COUNT];
/*******************************************************************************
* Code
******************************************************************************/
static uint32_t GINT_GetInstance(GINT_Type *base)
{
uint32_t instance;
/* Find the instance index from base address mappings. */
for (instance = 0; instance < ARRAY_SIZE(s_gintBases); instance++)
{
if (s_gintBases[instance] == base)
{
break;
}
}
assert(instance < ARRAY_SIZE(s_gintBases));
return instance;
}
void GINT_Init(GINT_Type *base)
{
uint32_t instance;
instance = GINT_GetInstance(base);
s_gintCallback[instance] = NULL;
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Enable the peripheral clock */
CLOCK_EnableClock(s_gintClocks[instance]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
/* Reset the peripheral */
RESET_PeripheralReset(s_gintResets[instance]);
}
void GINT_SetCtrl(GINT_Type *base, gint_comb_t comb, gint_trig_t trig, gint_cb_t callback)
{
uint32_t instance;
instance = GINT_GetInstance(base);
base->CTRL = (GINT_CTRL_COMB(comb) | GINT_CTRL_TRIG(trig));
/* Save callback pointer */
s_gintCallback[instance] = callback;
}
void GINT_GetCtrl(GINT_Type *base, gint_comb_t *comb, gint_trig_t *trig, gint_cb_t *callback)
{
uint32_t instance;
instance = GINT_GetInstance(base);
*comb = (gint_comb_t)((base->CTRL & GINT_CTRL_COMB_MASK) >> GINT_CTRL_COMB_SHIFT);
*trig = (gint_trig_t)((base->CTRL & GINT_CTRL_TRIG_MASK) >> GINT_CTRL_TRIG_SHIFT);
*callback = s_gintCallback[instance];
}
void GINT_ConfigPins(GINT_Type *base, gint_port_t port, uint32_t polarityMask, uint32_t enableMask)
{
base->PORT_POL[port] = polarityMask;
base->PORT_ENA[port] = enableMask;
}
void GINT_GetConfigPins(GINT_Type *base, gint_port_t port, uint32_t *polarityMask, uint32_t *enableMask)
{
*polarityMask = base->PORT_POL[port];
*enableMask = base->PORT_ENA[port];
}
void GINT_EnableCallback(GINT_Type *base)
{
uint32_t instance;
instance = GINT_GetInstance(base);
/* If GINT is configured in "AND" mode a spurious interrupt is generated.
Clear status and pending interrupt before enabling the irq in NVIC. */
GINT_ClrStatus(base);
NVIC_ClearPendingIRQ(s_gintIRQ[instance]);
EnableIRQ(s_gintIRQ[instance]);
}
void GINT_DisableCallback(GINT_Type *base)
{
uint32_t instance;
instance = GINT_GetInstance(base);
DisableIRQ(s_gintIRQ[instance]);
GINT_ClrStatus(base);
NVIC_ClearPendingIRQ(s_gintIRQ[instance]);
}
void GINT_Deinit(GINT_Type *base)
{
uint32_t instance;
instance = GINT_GetInstance(base);
/* Cleanup */
GINT_DisableCallback(base);
s_gintCallback[instance] = NULL;
/* Reset the peripheral */
RESET_PeripheralReset(s_gintResets[instance]);
#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
/* Disable the peripheral clock */
CLOCK_DisableClock(s_gintClocks[instance]);
#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
}
/* IRQ handler functions overloading weak symbols in the startup */
#if defined(GINT0)
void GINT0_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[0]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[0] != NULL)
{
s_gintCallback[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(GINT1)
void GINT1_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[1]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[1] != NULL)
{
s_gintCallback[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(GINT2)
void GINT2_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[2]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[2] != NULL)
{
s_gintCallback[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
#if defined(GINT3)
void GINT3_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[3]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[3] != NULL)
{
s_gintCallback[3]();
}
/* 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(GINT4)
void GINT4_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[4]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[4] != NULL)
{
s_gintCallback[4]();
}
/* 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(GINT5)
void GINT5_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[5]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[5] != NULL)
{
s_gintCallback[5]();
}
/* 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(GINT6)
void GINT6_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[6]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[6] != NULL)
{
s_gintCallback[6]();
}
/* 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(GINT7)
void GINT7_DriverIRQHandler(void)
{
/* Clear interrupt before callback */
s_gintBases[7]->CTRL |= GINT_CTRL_INT_MASK;
/* Call user function */
if (s_gintCallback[7] != NULL)
{
s_gintCallback[7]();
}
/* 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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