Diff: BSP_overwrite.cpp

Revision:

0:36a62c23e60c

diff -r 000000000000 -r 36a62c23e60c BSP_overwrite.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BSP_overwrite.cpp	Sat Dec 26 14:51:48 2015 +0000
@@ -0,0 +1,95 @@
+#include "main.h"
+
+DMA_HandleTypeDef hdma_sai_rx;
+
+/* ----- AUDIO IN ----- */
+
+void BSP_AUDIO_IN_HalfTransfer_CallBack(void)
+{
+    audio_in_buffer_offset = 0;
+    audio_in_buffer_length = BufferSize / 2;
+    audio_in_buffer_captured = true;
+}
+
+void BSP_AUDIO_IN_TransferComplete_CallBack(void)
+{
+    audio_in_buffer_offset = BufferSize / 2;
+    audio_in_buffer_length = BufferSize / 2;
+    audio_in_buffer_captured = true;
+}
+
+void BSP_AUDIO_IN_Error_CallBack(void)
+{
+    error_trap();
+}
+
+void AUDIO_IN_SAIx_DMAx_IRQHandler(void)
+{
+    HAL_DMA_IRQHandler(&hdma_sai_rx);
+}
+
+void  BSP_AUDIO_IN_MspInit(SAI_HandleTypeDef *hsai, void *Params)
+{
+    //static DMA_HandleTypeDef hdma_sai_rx;
+    GPIO_InitTypeDef  gpio_init_structure;
+
+    /* Enable SAI clock */
+    AUDIO_IN_SAIx_CLK_ENABLE();
+
+    /* Enable SD GPIO clock */
+    AUDIO_IN_SAIx_SD_ENABLE();
+    /* CODEC_SAI pin configuration: SD pin */
+    gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN;
+    gpio_init_structure.Mode = GPIO_MODE_AF_PP;
+    gpio_init_structure.Pull = GPIO_NOPULL;
+    gpio_init_structure.Speed = GPIO_SPEED_FAST;
+    gpio_init_structure.Alternate = AUDIO_IN_SAIx_SD_AF;
+    HAL_GPIO_Init(AUDIO_IN_SAIx_SD_GPIO_PORT, &gpio_init_structure);
+
+    /* Enable Audio INT GPIO clock */
+    AUDIO_IN_INT_GPIO_ENABLE();
+    /* Audio INT pin configuration: input */
+    gpio_init_structure.Pin = AUDIO_IN_INT_GPIO_PIN;
+    gpio_init_structure.Mode = GPIO_MODE_INPUT;
+    gpio_init_structure.Pull = GPIO_NOPULL;
+    gpio_init_structure.Speed = GPIO_SPEED_FAST;
+    HAL_GPIO_Init(AUDIO_IN_INT_GPIO_PORT, &gpio_init_structure);
+
+    /* Enable the DMA clock */
+    AUDIO_IN_SAIx_DMAx_CLK_ENABLE();
+
+    if(hsai->Instance == AUDIO_IN_SAIx) {
+        /* Configure the hdma_sai_rx handle parameters */
+        hdma_sai_rx.Init.Channel             = AUDIO_IN_SAIx_DMAx_CHANNEL;
+        hdma_sai_rx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
+        hdma_sai_rx.Init.PeriphInc           = DMA_PINC_DISABLE;
+        hdma_sai_rx.Init.MemInc              = DMA_MINC_ENABLE;
+        hdma_sai_rx.Init.PeriphDataAlignment = AUDIO_IN_SAIx_DMAx_PERIPH_DATA_SIZE;
+        hdma_sai_rx.Init.MemDataAlignment    = AUDIO_IN_SAIx_DMAx_MEM_DATA_SIZE;
+        hdma_sai_rx.Init.Mode                = DMA_CIRCULAR;
+        hdma_sai_rx.Init.Priority            = DMA_PRIORITY_HIGH;
+        hdma_sai_rx.Init.FIFOMode            = DMA_FIFOMODE_DISABLE;
+        hdma_sai_rx.Init.FIFOThreshold       = DMA_FIFO_THRESHOLD_FULL;
+        hdma_sai_rx.Init.MemBurst            = DMA_MBURST_SINGLE;
+        hdma_sai_rx.Init.PeriphBurst         = DMA_MBURST_SINGLE;
+
+        hdma_sai_rx.Instance = AUDIO_IN_SAIx_DMAx_STREAM;
+
+        /* Associate the DMA handle */
+        __HAL_LINKDMA(hsai, hdmarx, hdma_sai_rx);
+
+        /* Deinitialize the Stream for new transfer */
+        HAL_DMA_DeInit(&hdma_sai_rx);
+
+        /* Configure the DMA Stream */
+        HAL_DMA_Init(&hdma_sai_rx);
+    }
+
+    /* SAI DMA IRQ Channel configuration */
+    HAL_NVIC_SetPriority(AUDIO_IN_SAIx_DMAx_IRQ, AUDIO_IN_IRQ_PREPRIO, 0);
+    HAL_NVIC_EnableIRQ(AUDIO_IN_SAIx_DMAx_IRQ);
+
+    /* Audio INT IRQ Channel configuration */
+    HAL_NVIC_SetPriority(AUDIO_IN_INT_IRQ, AUDIO_IN_IRQ_PREPRIO, 0);
+    HAL_NVIC_EnableIRQ(AUDIO_IN_INT_IRQ);
+}