[add] dma test case.

bsp/stm32/stm32mp157a-st-ev1/board/Kconfig

@@ -134,6 +134,10 @@ menu "On-chip Peripheral Drivers"
         select RT_USING_WDT
         default n
 
+    config BSP_USING_DMA
+        bool "Enable DMA Test"
+        default name
+
     config BSP_USING_QSPI
         bool "Enable QSPI BUS"
         select RT_USING_QSPI

bsp/stm32/stm32mp157a-st-ev1/board/SConscript

@@ -76,6 +76,9 @@ if GetDepend(['BSP_USING_RS485']):
 if GetDepend(['BSP_USING_TIM14']):
     src += Glob('ports/timer_sample.c')
 
+if GetDepend(['BSP_USING_DMA']):
+    src += Glob('ports/dma_sample.c')
+
 if GetDepend(['BSP_USING_OPENAMP']):
     src +=  Glob('CubeMX_Config/CM4/Src/ipcc.c')
     src +=  Glob('CubeMX_Config/CM4/Src/openamp.c')

bsp/stm32/stm32mp157a-st-ev1/board/ports/dma_sample.c

@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-12-10     thread-liu   first version
+ */
+
+#include <board.h>
+
+#if defined(BSP_USING_DMA)
+
+#define BUFFER_SIZE 32        /* DMA max buffer size */
+
+static DMA_HandleTypeDef hdma_memtomem_dma1_stream5 = {0}; /* Using dma1 stream5 to test */
+
+static const rt_uint32_t DMA_Src_Buffer[BUFFER_SIZE] =
+{
+    0x01020304, 0x05060708, 0x090A0B0C, 0x0D0E0F10,
+    0x11121314, 0x15161718, 0x191A1B1C, 0x1D1E1F20,
+    0x21222324, 0x25262728, 0x292A2B2C, 0x2D2E2F30,
+    0x31323334, 0x35363738, 0x393A3B3C, 0x3D3E3F40,
+    0x41424344, 0x45464748, 0x494A4B4C, 0x4D4E4F50,
+    0x51525354, 0x55565758, 0x595A5B5C, 0x5D5E5F60,
+    0x61626364, 0x65666768, 0x696A6B6C, 0x6D6E6F70,
+    0x71727374, 0x75767778, 0x797A7B7C, 0x7D7E7F80
+};
+static rt_uint32_t DMA_Dst_Buffer[BUFFER_SIZE];
+
+#define __is_print(ch) ((unsigned int)((ch) - ' ') < 127u - ' ')
+static void dump_hex(const rt_uint8_t *ptr, rt_size_t buflen)
+{
+    unsigned char *buf = (unsigned char *)ptr;
+    int i, j;
+
+    for (i = 0; i < buflen; i += 16)
+    {
+        rt_kprintf("%08X: ", i);
+
+        for (j = 0; j < 16; j++)
+        {
+            if (i + j < buflen)
+            {
+                rt_kprintf("%02X ", buf[i + j]);
+            }
+            else
+            {
+                rt_kprintf("   ");
+            }
+        }
+        rt_kprintf(" ");
+
+        for (j = 0; j < 16; j++)
+        {
+            if (i + j < buflen)
+            {
+                rt_kprintf("%c", __is_print(buf[i + j]) ? buf[i + j] : '.');
+            }
+        }
+        rt_kprintf("\n");
+    }
+}
+
+void DMA1_Stream5_IRQHandler(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    HAL_DMA_IRQHandler(&hdma_memtomem_dma1_stream5);
+    
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+
+static void MX_DMA_Init(void)
+{
+    /* DMA controller clock enable */
+    __HAL_RCC_DMA1_CLK_ENABLE();
+    __HAL_RCC_DMAMUX_CLK_ENABLE();
+
+    /* Configure DMA request hdma_memtomem_dma1_stream5 on DMA1_Stream5 */
+    hdma_memtomem_dma1_stream5.Instance = DMA1_Stream5;
+    hdma_memtomem_dma1_stream5.Init.Request = DMA_REQUEST_MEM2MEM;
+    hdma_memtomem_dma1_stream5.Init.Direction = DMA_MEMORY_TO_MEMORY;
+    hdma_memtomem_dma1_stream5.Init.PeriphInc = DMA_PINC_ENABLE;
+    hdma_memtomem_dma1_stream5.Init.MemInc = DMA_MINC_ENABLE;
+    hdma_memtomem_dma1_stream5.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
+    hdma_memtomem_dma1_stream5.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
+    hdma_memtomem_dma1_stream5.Init.Mode = DMA_NORMAL;
+    hdma_memtomem_dma1_stream5.Init.Priority = DMA_PRIORITY_LOW;
+    hdma_memtomem_dma1_stream5.Init.FIFOMode = DMA_FIFOMODE_ENABLE;
+    hdma_memtomem_dma1_stream5.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
+    hdma_memtomem_dma1_stream5.Init.MemBurst = DMA_MBURST_INC4;
+    hdma_memtomem_dma1_stream5.Init.PeriphBurst = DMA_PBURST_INC4;
+    if (HAL_DMA_Init(&hdma_memtomem_dma1_stream5) != HAL_OK)
+    {
+        Error_Handler();
+    }
+
+    /* DMA interrupt init */
+    /* DMA1_Stream5_IRQn interrupt configuration */
+    HAL_NVIC_SetPriority(DMA1_Stream5_IRQn, 0, 0);
+    HAL_NVIC_EnableIRQ(DMA1_Stream5_IRQn);
+}
+
+static void TransferComplete(DMA_HandleTypeDef *DmaHandle)
+{
+    rt_kprintf("dma dst buffer :\n");
+    dump_hex((rt_uint8_t *)DMA_Dst_Buffer, sizeof(DMA_Dst_Buffer));
+
+    rt_kprintf("============ dma transfer success ============\n");
+    
+    rt_memset(DMA_Dst_Buffer, 0x00, sizeof(DMA_Dst_Buffer));
+}
+
+static void TransferError(DMA_HandleTypeDef *DmaHandle)
+{
+    rt_kprintf("============ dma transfer error ============\n");
+}
+
+static int rt_hw_dma_init(void)
+{
+    rt_err_t result = RT_EOK;
+    
+    MX_DMA_Init();
+    /* Select Callbacks functions called after Transfer complete and Transfer error */
+    HAL_DMA_RegisterCallback(&hdma_memtomem_dma1_stream5, HAL_DMA_XFER_CPLT_CB_ID, TransferComplete);
+    HAL_DMA_RegisterCallback(&hdma_memtomem_dma1_stream5, HAL_DMA_XFER_ERROR_CB_ID, TransferError);
+
+    return result;
+}
+INIT_APP_EXPORT(rt_hw_dma_init);
+
+static int dma_transfer_test()
+{
+    rt_kprintf("============ dma travsfer start ============\n");
+    
+    rt_kprintf("dma src buffer :\n");
+    dump_hex((rt_uint8_t *)DMA_Src_Buffer, sizeof(DMA_Src_Buffer));
+
+    if (HAL_DMA_Start_IT(&hdma_memtomem_dma1_stream5, (rt_uint32_t)&DMA_Src_Buffer, (rt_uint32_t)&DMA_Dst_Buffer, BUFFER_SIZE) != HAL_OK)
+    {
+        /* Transfer Error */
+        return -RT_ERROR;
+    }
+
+    return RT_EOK;
+}
+
+int dma_sample(int argc, char **argv)
+{
+    if (argc > 1)
+    {
+        if (!rt_strcmp(argv[1], "start"))
+        {
+           rt_kprintf("dma test start\n");
+           dma_transfer_test();
+           return RT_EOK;
+        }
+        else
+        {
+            goto _exit;
+        }
+    }
+_exit:
+    {
+        rt_kprintf("Usage:\n");
+        rt_kprintf("dma_sample start         - start dma \n");
+    }
+    
+    return RT_EOK;
+}
+MSH_CMD_EXPORT(dma_sample, dma test);
+
+#endif /* USE_DMA_SAMPLE */