Add basic DMA handlers.

Author: xC0000005

cores/arduino/stm32/dma.c

@@ -0,0 +1,370 @@
+/**
+  ******************************************************************************
+  * @file    dma.c
+  * @author  xC0000005
+  * @version V1.0.0
+  * @date    12-July-2019
+  * @brief   provide dma callbacks for dma
+  *
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2019 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. 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.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * 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 <stddef.h>
+#include "dma.h"
+
+#define NC -1
+
+typedef enum
+{
+#ifdef DMA1_Channel1
+  DMA1_CHANNEL1_INDEX,
+#endif
+#ifdef DMA1_Channel2
+  DMA1_CHANNEL2_INDEX,
+#endif
+#ifdef DMA1_Channel3
+  DMA1_CHANNEL3_INDEX,
+#endif
+#ifdef DMA1_Channel4
+  DMA1_CHANNEL4_INDEX,
+#endif
+#ifdef DMA1_Channel5
+  DMA1_CHANNEL5_INDEX,
+#endif
+#ifdef DMA1_Channel6
+  DMA1_CHANNEL6_INDEX,
+#endif
+#ifdef DMA1_Channel7
+  DMA1_CHANNEL7_INDEX,
+#endif
+#ifdef DMA2_Channel1
+  DMA2_CHANNEL1_INDEX,
+#endif
+#ifdef DMA2_Channel2
+  DMA2_CHANNEL2_INDEX,
+#endif
+#ifdef DMA2_Channel3
+  DMA2_CHANNEL3_INDEX,
+#endif
+#ifdef DMA2_Channel4
+  DMA2_CHANNEL4_INDEX,
+#endif
+#ifdef DMA2_Channel5
+  DMA2_CHANNEL5_INDEX,
+#endif
+#ifdef DMA2_Channel6
+  DMA2_CHANNEL6_INDEX,
+#endif
+#ifdef DMA2_Channel7
+  DMA2_CHANNEL7_INDEX,
+#endif
+#ifdef DMA2_Channel8
+  DMA2_CHANNEL8_INDEX,
+#endif
+  DMA_CHANNEL_NUM
+} dma_index_t;
+
+static DMA_HandleTypeDef *dma_handles[DMA_CHANNEL_NUM] = {NULL};
+
+/**
+  * @brief  This function determines the dma index
+  * @param  instance : dma instance
+  * @retval None
+  */
+static dma_index_t get_dma_index(DMA_Channel_TypeDef *instance) {
+  switch ((uint32_t)instance) {
+    #ifdef DMA1_Channel1
+      case (uint32_t)DMA1_Channel1:
+      return DMA1_CHANNEL1_INDEX;
+    #endif
+    #ifdef DMA1_Channel2
+      case (uint32_t)DMA1_Channel2:
+      return DMA1_CHANNEL2_INDEX;
+    #endif
+    #ifdef DMA1_Channel3
+      case (uint32_t)DMA1_Channel3:
+      return DMA1_CHANNEL3_INDEX;
+    #endif
+    #ifdef DMA1_Channel4
+      case (uint32_t)DMA1_Channel4:
+      return DMA1_CHANNEL4_INDEX;
+    #endif
+    #ifdef DMA1_Channel5
+      case (uint32_t)DMA1_Channel5:
+      return DMA1_CHANNEL5_INDEX;
+    #endif
+    #ifdef DMA1_Channel6
+      case (uint32_t)DMA1_Channel6:
+      return DMA1_CHANNEL6_INDEX;
+    #endif
+    #ifdef DMA1_Channel7
+      case (uint32_t)DMA1_Channel7:
+      return DMA1_CHANNEL7_INDEX;
+    #endif
+    #ifdef DMA2_Channel1
+      case (uint32_t)DMA2_Channel1:
+      return DMA2_CHANNEL1_INDEX;
+    #endif
+    #ifdef DMA2_Channel2
+      case (uint32_t)DMA2_Channel2:
+      return DMA2_CHANNEL2_INDEX;
+    #endif
+    #ifdef DMA2_Channel3
+      case (uint32_t)DMA2_Channel3:
+      return DMA2_CHANNEL3_INDEX;
+    #endif
+    #ifdef DMA2_Channel4
+      case (uint32_t)DMA2_Channel4:
+      return DMA2_CHANNEL4_INDEX;
+    #endif
+    #ifdef DMA2_Channel5
+      case (uint32_t)DMA2_Channel5:
+      return DMA2_CHANNEL5_INDEX;
+    #endif
+    #ifdef DMA2_Channel6
+      case (uint32_t)DMA2_Channel6:
+      return DMA2_CHANNEL6_INDEX;
+    #endif
+    #ifdef DMA2_Channel7
+      case (uint32_t)DMA2_Channel7:
+      return DMA2_CHANNEL7_INDEX;
+    #endif
+    #ifdef DMA2_Channel8
+      case (uint32_t)DMA2_Channel8:
+      return DMA2_CHANNEL8_INDEX;
+    #endif
+    default:
+      return NC;
+  }
+}
+
+/**
+  * @brief  This function will store the DMA handle in the appropriate slot
+  * @param  dma_handle : dma handle
+  * @retval None
+  */
+void prepare_dma(DMA_HandleTypeDef *dma_handle) {
+  dma_index_t dma_index = get_dma_index(dma_handle->Instance);
+  if (dma_index == NC) {
+    return;
+  }
+  dma_handles[dma_index] = dma_handle;
+}
+
+/**
+  * @brief  This function will remove the DMA handle from the appropriate slot
+  * @param  dma_handle : dma handle
+  * @retval None
+  */
+void end_dma(DMA_HandleTypeDef *dma_handle) {
+  dma_index_t dma_index = get_dma_index(dma_handle->Instance);
+  if (dma_index == NC) {
+    return;
+  }
+  dma_handles[dma_index] = NULL;
+}
+
+#ifdef DMA1_Channel1
+/**
+  * @brief  DMA1 Channel1 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA1_Channel1_IRQHandler() {
+  if (dma_handles[DMA1_CHANNEL1_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA1_CHANNEL1_INDEX]);
+}
+#endif
+
+#ifdef DMA1_Channel2
+/**
+  * @brief  DMA1 Channel2 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA1_Channel2_IRQHandler() {
+  if (dma_handles[DMA1_CHANNEL2_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA1_CHANNEL2_INDEX]);
+}
+#endif
+
+#ifdef DMA1_Channel3
+/**
+  * @brief  DMA1 Channel3 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA1_Channel3_IRQHandler() {
+  if (dma_handles[DMA1_CHANNEL3_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA1_CHANNEL3_INDEX]);
+}
+#endif
+
+#ifdef DMA1_Channel4
+/**
+  * @brief  DMA1 Channel4 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA1_Channel4_IRQHandler() {
+  if (dma_handles[DMA1_CHANNEL4_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA1_CHANNEL4_INDEX]);
+}
+#endif
+
+#ifdef DMA1_Channel5
+/**
+  * @brief  DMA1 Channel5 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA1_Channel5_IRQHandler() {
+  if (dma_handles[DMA1_CHANNEL5_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA1_CHANNEL5_INDEX]);
+}
+#endif
+
+#ifdef DMA1_Channel6/**
+  * @brief  DMA1 Channel6 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA1_Channel6_IRQHandler() {
+  if (dma_handles[DMA1_CHANNEL6_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA1_CHANNEL6_INDEX]);
+}
+#endif
+
+#ifdef DMA1_Channel7
+/**
+  * @brief  DMA1 Channel3 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA1_Channel7_IRQHandler() {
+  if (dma_handles[DMA1_CHANNEL7_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA1_CHANNEL7_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel1
+/**
+  * @brief  DMA2 Channel1 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel1_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL1_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL1_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel2
+/**
+  * @brief  DMA2 Channel2 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel1_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL2_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL2_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel3
+/**
+  * @brief  DMA2 Channel3 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel3_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL3_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL3_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel4
+/**
+  * @brief  DMA2 Channel4 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel4_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL4_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL4_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel5
+/**
+  * @brief  DMA2 Channel5 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel5_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL5_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL5_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel6
+/**
+  * @brief  DMA2 Channel6 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel6_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL6_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL6_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel7
+/**
+  * @brief  DMA2 Channel7 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel7_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL7_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL7_INDEX]);
+}
+#endif
+
+#ifdef DMA2_Channel8
+/**
+  * @brief  DMA2 Channel8 IRQHandler
+  * @param  None
+  * @retval None
+  */
+void DMA2_Channel8_IRQHandler() {
+  if (dma_handles[DMA2_CHANNEL8_INDEX] != NULL)
+    HAL_DMA_IRQHandler(dma_handles[DMA2_CHANNEL8_INDEX]);
+}
+#endif