From 4c39135c94232e76011da8a055dd3eddd0031da2 Mon Sep 17 00:00:00 2001 From: Giovanni Di Sirio Date: Sat, 2 Sep 2017 09:00:49 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10525 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- os/hal/ports/STM32/STM32L0xx/stm32_isr.c | 164 +++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+) create mode 100644 os/hal/ports/STM32/STM32L0xx/stm32_isr.c (limited to 'os/hal/ports/STM32/STM32L0xx/stm32_isr.c') diff --git a/os/hal/ports/STM32/STM32L0xx/stm32_isr.c b/os/hal/ports/STM32/STM32L0xx/stm32_isr.c new file mode 100644 index 000000000..04c73d850 --- /dev/null +++ b/os/hal/ports/STM32/STM32L0xx/stm32_isr.c @@ -0,0 +1,164 @@ +/* + ChibiOS - Copyright (C) 2006..2016 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/stm32_isr.h + * @brief STM32L0xx ISR handler code. + * + * @addtogroup SRM32L0xx_ISR + * @{ + */ + +#include "hal.h" + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +#define exti_serve_irq(pr, channel) { \ + \ + if ((pr) & (1U << (channel))) { \ + _pal_isr_code(channel); \ + } \ +} + +/*===========================================================================*/ +/* Driver interrupt handlers. */ +/*===========================================================================*/ + +#if HAL_USE_PAL || defined(__DOXYGEN__) +/** + * @brief EXTI[0]...EXTI[1] interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(Vector54) { + uint32_t pr; + + OSAL_IRQ_PROLOGUE(); + + pr = EXTI->PR; + pr &= ((1U << 0) | (1U << 1)); + EXTI->PR = pr; + + exti_serve_irq(pr, 0); + exti_serve_irq(pr, 1); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief EXTI[2]...EXTI[3] interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(Vector58) { + uint32_t pr; + + OSAL_IRQ_PROLOGUE(); + + pr = EXTI->PR; + pr &= ((1U << 2) | (1U << 3)); + EXTI->PR = pr; + + exti_serve_irq(pr, 2); + exti_serve_irq(pr, 3); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief EXTI[4]...EXTI[15] interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(Vector5C) { + uint32_t pr; + + OSAL_IRQ_PROLOGUE(); + + pr = EXTI->PR; + pr &= ((1U << 4) | (1U << 5) | (1U << 6) | (1U << 7) | (1U << 8) | + (1U << 9) | (1U << 10) | (1U << 11) | (1U << 12) | (1U << 13) | + (1U << 14) | (1U << 15)); + EXTI->PR = pr; + + exti_serve_irq(pr, 4); + exti_serve_irq(pr, 5); + exti_serve_irq(pr, 6); + exti_serve_irq(pr, 7); + exti_serve_irq(pr, 8); + exti_serve_irq(pr, 9); + exti_serve_irq(pr, 10); + exti_serve_irq(pr, 11); + exti_serve_irq(pr, 12); + exti_serve_irq(pr, 13); + exti_serve_irq(pr, 14); + exti_serve_irq(pr, 15); + + OSAL_IRQ_EPILOGUE(); +} + +#endif /* HAL_USE_PAL */ + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * @brief Enables IRQ sources. + * + * @notapi + */ +void irqInit(void) { + +#if HAL_USE_PAL + nvicEnableVector(STM32_EXTI_LINE01_NUMBER, STM32_IRQ_EXTI0_1_PRIORITY); + nvicEnableVector(STM32_EXTI_LINE23_NUMBER, STM32_IRQ_EXTI2_3_PRIORITY); + nvicEnableVector(STM32_EXTI_LINE4_15_NUMBER, STM32_IRQ_EXTI4_15_PRIORITY); + nvicEnableVector(STM32_EXTI_LINE16_NUMBER, STM32_IRQ_EXTI16_PRIORITY); +#endif +} + +/** + * @brief Disables IRQ sources. + * + * @notapi + */ +void irqDeinit(void) { + +#if HAL_USE_PAL + 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); +#endif +} + +/** @} */ -- cgit v1.2.3