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cores/xmc/: Add Interrupt Implementation.
Signed-off-by: MDin <Dinesh.M-EE@infineon.com>
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‎cores/xmc/WInterrupts.c‎

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//****************************************************************************
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// @Project Includes
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//****************************************************************************
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#include "Arduino.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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//****************************************************************************
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// @Prototypes Of Local Functions
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//****************************************************************************
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static voidFuncPtr interrupt_0_cb = NULL;
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static voidFuncPtr interrupt_1_cb = NULL;
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//****************************************************************************
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// @Local Functions
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//****************************************************************************
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#if defined(INTERRUPT_USE_ERU)
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void ERU0_3_IRQHandler(void) {
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if (interrupt_0_cb) {
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interrupt_0_cb();
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}
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}
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#if defined(XMC4200_Platform2GO)
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void ERU0_0_IRQHandler(void) {
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if (interrupt_1_cb) {
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interrupt_1_cb();
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}
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}
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#else
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void ERU1_0_IRQHandler(void) {
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if (interrupt_1_cb) {
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interrupt_1_cb();
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}
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}
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#endif
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#else
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void CCU40_0_IRQHandler(void) {
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if (interrupt_0_cb) {
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interrupt_0_cb();
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}
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}
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void CCU40_1_IRQHandler(void) {
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if (interrupt_1_cb) {
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interrupt_1_cb();
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}
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}
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#endif
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void attachInterrupt(pin_size_t interrupt_num, voidFuncPtr callback, PinStatus mode) {
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XMC_PIN_INTERRUPT_t pin_irq = mapping_interrupt[interrupt_num];
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#if defined(INTERRUPT_USE_ERU)
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XMC_ERU_ETL_EDGE_DETECTION_t event_config = 0;
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switch (mode) {
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case CHANGE:
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event_config = XMC_ERU_ETL_EDGE_DETECTION_BOTH;
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break;
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case RISING:
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event_config = XMC_ERU_ETL_EDGE_DETECTION_RISING;
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break;
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case FALLING:
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event_config = XMC_ERU_ETL_EDGE_DETECTION_FALLING;
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break;
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default:
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event_config = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_NONE;
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break;
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}
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XMC_ERU_Enable(pin_irq.eru);
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XMC_ERU_ETL_SetInput(pin_irq.eru, pin_irq.etl, pin_irq.input_a, pin_irq.input_b);
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XMC_ERU_ETL_SetEdgeDetection(pin_irq.eru, pin_irq.etl, event_config);
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XMC_ERU_ETL_SetSource(pin_irq.eru, pin_irq.etl, XMC_ERU_ETL_SOURCE_B);
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XMC_ERU_ETL_EnableOutputTrigger(pin_irq.eru, pin_irq.etl, pin_irq.ogu);
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XMC_ERU_OGU_SetServiceRequestMode(pin_irq.eru, pin_irq.ogu,
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XMC_ERU_OGU_SERVICE_REQUEST_ON_TRIGGER);
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if (pin_irq.irq_num == 0) {
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NVIC_SetPriority(ERU0_3_IRQn, 3);
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interrupt_0_cb = callback;
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NVIC_EnableIRQ(ERU0_3_IRQn);
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} else if (pin_irq.irq_num == 1) {
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#if defined(XMC4200_Platform2GO)
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NVIC_SetPriority(ERU0_0_IRQn, 3);
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interrupt_1_cb = callback;
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NVIC_EnableIRQ(ERU0_0_IRQn);
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#else
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NVIC_SetPriority(ERU1_0_IRQn, 3);
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interrupt_1_cb = callback;
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NVIC_EnableIRQ(ERU1_0_IRQn);
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#endif
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}
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#else
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XMC_CCU4_SLICE_EVENT_CONFIG_t event_config = {0};
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switch (mode) {
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case CHANGE:
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event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_DUAL_EDGE;
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break;
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case RISING:
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event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_RISING_EDGE;
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break;
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case FALLING:
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event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_FALLING_EDGE;
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break;
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default:
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event_config.edge = XMC_CCU4_SLICE_EVENT_EDGE_SENSITIVITY_NONE;
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break;
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}
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XMC_CCU4_Init(pin_irq.ccu, XMC_CCU4_SLICE_MCMS_ACTION_TRANSFER_PR_CR);
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XMC_CCU4_EnableClock(pin_irq.ccu, pin_irq.slice_num);
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if (pin_irq.irq_num == 0) {
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#if defined(XMC1100_Boot_Kit) || defined(XMC1400_Arduino_Kit) || defined(XMC1400_XMC2GO)
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/* P1_4 external interrupt goes through USIC to CCU4 */
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XMC_USIC_CH_Enable(XMC_USIC0_CH0);
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XMC_USIC_CH_SetInputSource(XMC_USIC0_CH0, XMC_USIC_CH_INPUT_DX5, USIC0_C0_DX5_P1_4);
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XMC_USIC_CH_SetInputSource(XMC_USIC0_CH0, XMC_USIC_CH_INPUT_DX2, USIC0_C0_DX2_DX5INS);
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#endif
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XMC_CCU4_SLICE_EnableMultipleEvents(pin_irq.slice, XMC_CCU4_SLICE_MULTI_IRQ_ID_EVENT0);
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XMC_CCU4_SLICE_SetInterruptNode(pin_irq.slice, XMC_CCU4_SLICE_IRQ_ID_EVENT0, 0);
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NVIC_SetPriority(CCU40_0_IRQn, 3);
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event_config.mapped_input = pin_irq.input;
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XMC_CCU4_SLICE_ConfigureEvent(pin_irq.slice, XMC_CCU4_SLICE_EVENT_0, &event_config);
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interrupt_0_cb = callback;
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NVIC_EnableIRQ(CCU40_0_IRQn);
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} else if (pin_irq.irq_num == 1) {
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#if defined(XMC1300_Boot_Kit)
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/* P0_13 external interrupt goes through USIC to CCU4 */
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XMC_USIC_CH_Enable(XMC_USIC0_CH0);
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XMC_USIC_CH_SetInputSource(XMC_USIC0_CH0, XMC_USIC_CH_INPUT_DX2, USIC0_C0_DX2_P0_13);
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#endif
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#if defined(XMC1400_Arduino_Kit)
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/* P1_1 external interrupt goes through USIC to CCU4 */
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XMC_USIC_CH_Enable(XMC_USIC0_CH1);
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XMC_USIC_CH_SetInputSource(XMC_USIC0_CH1, XMC_USIC_CH_INPUT_DX2, USIC0_C1_DX2_P1_1);
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#endif
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XMC_CCU4_SLICE_EnableMultipleEvents(pin_irq.slice, XMC_CCU4_SLICE_MULTI_IRQ_ID_EVENT1);
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XMC_CCU4_SLICE_SetInterruptNode(pin_irq.slice, XMC_CCU4_SLICE_IRQ_ID_EVENT1, 1);
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NVIC_SetPriority(CCU40_1_IRQn, 3);
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event_config.mapped_input = pin_irq.input;
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XMC_CCU4_SLICE_ConfigureEvent(pin_irq.slice, XMC_CCU4_SLICE_EVENT_1, &event_config);
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interrupt_1_cb = callback;
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NVIC_EnableIRQ(CCU40_1_IRQn);
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}
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#endif
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}
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void detachInterrupt(pin_size_t interrupt_num) {
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#if defined(INTERRUPT_USE_ERU)
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XMC_PIN_INTERRUPT_t pin_irq = mapping_interrupt[interrupt_num];
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switch (pin_irq.irq_num) {
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case 0:
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NVIC_DisableIRQ(ERU0_3_IRQn);
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break;
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case 1:
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#if defined(XMC4200_Platform2GO)
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NVIC_DisableIRQ(ERU0_0_IRQn);
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#else
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NVIC_DisableIRQ(ERU1_0_IRQn);
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#endif
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break;
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default:
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break;
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}
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#else
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switch (interrupt_num) {
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case 0:
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NVIC_DisableIRQ(CCU40_0_IRQn);
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break;
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case 1:
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NVIC_DisableIRQ(CCU40_1_IRQn);
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break;
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default:
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break;
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}
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#endif
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}
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#ifdef __cplusplus
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}
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#endif
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//****************************************************************************
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// END OF FILE
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//****************************************************************************

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