1 files changed, 80 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_dma.c b/nuttx/arch/arm/src/stm32/stm32_dma.c
new file mode 100644
index 000000000..0dd8eb94e
--- /dev/null
+++ b/nuttx/arch/arm/src/stm32/stm32_dma.c
@@ -0,0 +1,80 @@
+/****************************************************************************
+ * arch/arm/src/stm32/stm32_dma.c
+ *
+ *   Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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 NuttX 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 OWNER 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include "chip.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/* This file is only a thin shell that includes the correct DMA implementation
+ * for the selected STM32 family.  The correct file cannot be selected by
+ * the make system because it needs the intelligence that only exists in
+ * chip.h that can associate an STM32 part number with an STM32 family.
+ *
+ * The STM32 F4 DMA differs from the F1 DMA primarily in that it adds the
+ * concept of "streams" that are used to associate DMA sources with DMA
+ * channels.
+ */
+
+#if defined(CONFIG_STM32_STM32F10XX)
+#  include "stm32f10xxx_dma.c"
+#elif defined(CONFIG_STM32_STM32F20XX)
+#  include "stm32f20xxx_dma.c"
+#elif defined(CONFIG_STM32_STM32F40XX)
+#  include "stm32f40xxx_dma.c"
+#endif