mirror of https://github.com/rusefi/ChibiOS.git
199 lines
4.9 KiB
C
199 lines
4.9 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file LPC11Uxx/ext_lld_isr.c
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* @brief LPC11Uxx EXT subsystem low level driver ISR code.
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*
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* @addtogroup EXT
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#if HAL_USE_EXT || defined(__DOXYGEN__)
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#include "ext_lld_isr.h"
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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static void ext_lld_interrupt( uint32_t n ) {
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uint32_t reason;
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reason = ((LPC_GPIO_PIN_INT->RISE)>> n ) & 0x01;
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reason |= ((LPC_GPIO_PIN_INT->FALL)>>(n-1)) & 0x02;
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LPC_GPIO_PIN_INT->RISE = (1<<n);
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LPC_GPIO_PIN_INT->FALL = (1<<n);
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LPC_GPIO_PIN_INT->IST = (1<<n);
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EXTD1.config->channels[n].cb(&EXTD1, n, reason);
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}
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/**
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* @brief EXT[0] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector40) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(0);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[1] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector44) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(1);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[2] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector48) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(2);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[3] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector4C) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(3);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[4] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector50) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(4);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[5] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector54) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(5);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[6] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector58) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(6);
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CH_IRQ_EPILOGUE();
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}
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/**
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* @brief EXT[7] interrupt handler.
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*
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* @isr
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*/
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CH_IRQ_HANDLER(Vector5C) {
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CH_IRQ_PROLOGUE();
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ext_lld_interrupt(7);
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CH_IRQ_EPILOGUE();
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}
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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static const uint8_t LPC11_EXT_EXTIn_IRQ_PRIORITY[] =
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{ LPC11_EXT_EXTI0_IRQ_PRIORITY,
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LPC11_EXT_EXTI1_IRQ_PRIORITY,
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LPC11_EXT_EXTI2_IRQ_PRIORITY,
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LPC11_EXT_EXTI3_IRQ_PRIORITY,
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LPC11_EXT_EXTI4_IRQ_PRIORITY,
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LPC11_EXT_EXTI5_IRQ_PRIORITY,
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LPC11_EXT_EXTI6_IRQ_PRIORITY,
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LPC11_EXT_EXTI7_IRQ_PRIORITY };
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/**
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* @brief Enables EXTI IRQ sources.
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*
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* @notapi
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*/
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void ext_lld_exti_irq_enable( uint32_t exti_n ) {
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nvicEnableVector(FLEX_INT0_IRQn + exti_n,
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CORTEX_PRIORITY_MASK(LPC11_EXT_EXTIn_IRQ_PRIORITY[exti_n]));
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}
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/**
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* @brief Disables EXTI IRQ sources.
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*
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* @notapi
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*/
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void ext_lld_exti_irq_disable( uint32_t exti_n ) {
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nvicDisableVector(FLEX_INT0_IRQn + exti_n);
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}
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#endif /* HAL_USE_EXT */
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/** @} */
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