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/*
ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file STM32L0xx/ext_lld_isr.c
* @brief STM32L0xx EXT subsystem low level driver ISR code.
*
* @addtogroup EXT
* @{
*/
#include "hal.h"
#if HAL_USE_EXT || defined(__DOXYGEN__)
#include "ext_lld_isr.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/**
* @brief EXTI[0]...EXTI[1] interrupt handler.
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_EXTI_LINE01_HANDLER) {
uint32_t pr;
OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & EXTI->IMR & ((1 << 0) | (1 << 1));
EXTI->PR = pr;
if (pr & (1 << 0))
EXTD1.config->channels[0].cb(&EXTD1, 0);
if (pr & (1 << 1))
EXTD1.config->channels[1].cb(&EXTD1, 1);
OSAL_IRQ_EPILOGUE();
}
/**
* @brief EXTI[2]...EXTI[3] interrupt handler.
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_EXTI_LINE23_HANDLER) {
uint32_t pr;
OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & EXTI->IMR & ((1 << 2) | (1 << 3));
EXTI->PR = pr;
if (pr & (1 << 2))
EXTD1.config->channels[2].cb(&EXTD1, 2);
if (pr & (1 << 3))
EXTD1.config->channels[3].cb(&EXTD1, 3);
OSAL_IRQ_EPILOGUE();
}
/**
* @brief EXTI[4]...EXTI[15] interrupt handler.
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_EXTI_LINE4_15_HANDLER) {
uint32_t pr;
OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & EXTI->IMR & ((1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) |
(1 << 8) | (1 << 9) | (1 << 10) | (1 << 11) |
(1 << 12) | (1 << 13) | (1 << 14) | (1 << 15));
EXTI->PR = pr;
if (pr & (1 << 4))
EXTD1.config->channels[4].cb(&EXTD1, 4);
if (pr & (1 << 5))
EXTD1.config->channels[5].cb(&EXTD1, 5);
if (pr & (1 << 6))
EXTD1.config->channels[6].cb(&EXTD1, 6);
if (pr & (1 << 7))
EXTD1.config->channels[7].cb(&EXTD1, 7);
if (pr & (1 << 8))
EXTD1.config->channels[8].cb(&EXTD1, 8);
if (pr & (1 << 9))
EXTD1.config->channels[9].cb(&EXTD1, 9);
if (pr & (1 << 10))
EXTD1.config->channels[10].cb(&EXTD1, 10);
if (pr & (1 << 11))
EXTD1.config->channels[11].cb(&EXTD1, 11);
if (pr & (1 << 12))
EXTD1.config->channels[12].cb(&EXTD1, 12);
if (pr & (1 << 13))
EXTD1.config->channels[13].cb(&EXTD1, 13);
if (pr & (1 << 14))
EXTD1.config->channels[14].cb(&EXTD1, 14);
if (pr & (1 << 15))
EXTD1.config->channels[15].cb(&EXTD1, 15);
OSAL_IRQ_EPILOGUE();
}
/**
* @brief EXTI[16] interrupt handler (PVD).
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_EXTI_LINE16_HANDLER) {
uint32_t pr;
OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & EXTI->IMR & (1 << 16);
EXTI->PR = pr;
if (pr & (1 << 16))
EXTD1.config->channels[16].cb(&EXTD1, 16);
OSAL_IRQ_EPILOGUE();
}
/**
* @brief EXTI[17],EXTI[19],EXTI[20] interrupt handler (RTC, CSS).
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_EXTI_LINE171920_HANDLER) {
uint32_t pr;
OSAL_IRQ_PROLOGUE();
pr = EXTI->PR & EXTI->IMR & ((1 << 17) | (1 << 19) | (1 << 20));
EXTI->PR = pr;
if (pr & (1 << 17))
EXTD1.config->channels[17].cb(&EXTD1, 17);
if (pr & (1 << 19))
EXTD1.config->channels[19].cb(&EXTD1, 19);
if (pr & (1 << 20))
EXTD1.config->channels[20].cb(&EXTD1, 20);
OSAL_IRQ_EPILOGUE();
}
#endif /* HAL_USE_EXT */
#if (HAL_USE_EXT || HAL_USE_ADC) || defined(__DOXYGEN__)
/**
* @brief EXTI[20],EXTI[21] interrupt handler (ADC, COMP).
* @note This handler is shared with the ADC so it is handled
* a bit differently.
*
* @isr
*/
OSAL_IRQ_HANDLER(STM32_EXTI_LINE2122_HANDLER) {
OSAL_IRQ_PROLOGUE();
#if HAL_USE_EXT
{
uint32_t pr;
pr = EXTI->PR & EXTI->IMR & ((1 << 21) | (1 << 22));
EXTI->PR = pr;
if (pr & (1 << 21))
EXTD1.config->channels[21].cb(&EXTD1, 21);
if (pr & (1 << 22))
EXTD1.config->channels[21].cb(&EXTD1, 22);
}
#endif
#if HAL_USE_ADC
adc_lld_serve_interrupt(&ADCD1);
#endif
OSAL_IRQ_EPILOGUE();
}
#endif /* HAL_USE_EXT || HAL_USE_ADC */
#if HAL_USE_EXT || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Enables EXTI IRQ sources.
*
* @notapi
*/
void ext_lld_exti_irq_enable(void) {
nvicEnableVector(STM32_EXTI_LINE01_NUMBER,
STM32_EXT_EXTI0_1_IRQ_PRIORITY);
nvicEnableVector(STM32_EXTI_LINE23_NUMBER,
STM32_EXT_EXTI2_3_IRQ_PRIORITY);
nvicEnableVector(STM32_EXTI_LINE4_15_NUMBER,
STM32_EXT_EXTI4_15_IRQ_PRIORITY);
nvicEnableVector(STM32_EXTI_LINE16_NUMBER,
STM32_EXT_EXTI16_IRQ_PRIORITY);
nvicEnableVector(STM32_EXTI_LINE171920_NUMBER,
STM32_EXT_EXTI17_20_IRQ_PRIORITY);
#if HAL_USE_ADC
/* If the ADC is not working then the vector can be enabled.*/
if (ADCD1.state == ADC_STOP) {
nvicEnableVector(STM32_EXTI_LINE2122_NUMBER,
STM32_EXT_EXTI21_22_IRQ_PRIORITY);
}
#else
nvicEnableVector(STM32_EXTI_LINE2122_NUMBER,
STM32_EXT_EXTI21_22_IRQ_PRIORITY);
#endif
}
/**
* @brief Disables EXTI IRQ sources.
*
* @notapi
*/
void ext_lld_exti_irq_disable(void) {
nvicDisableVector(STM32_EXTI_LINE01_NUMBER);
nvicDisableVector(STM32_EXTI_LINE23_NUMBER);
nvicDisableVector(STM32_EXTI_LINE4_15_NUMBER);
nvicDisableVector(STM32_EXTI_LINE16_NUMBER);
nvicDisableVector(STM32_EXTI_LINE2122_NUMBER);
#if HAL_USE_ADC
/* If the ADC is not working then the vector can be disabled.*/
if (ADCD1.state == ADC_STOP) {
nvicDisableVector(STM32_EXTI_LINE171920_NUMBER);
}
#else
nvicDisableVector(STM32_EXTI_LINE171920_NUMBER);
#endif
}
#endif /* HAL_USE_EXT */
/** @} */
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