Diff: Drivers/dma.h

Revision:

0:e57bc370d339

diff -r 000000000000 -r e57bc370d339 Drivers/dma.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Drivers/dma.h	Tue Jan 05 11:45:44 2016 +0000
@@ -0,0 +1,70 @@
+/*
+ * dma.h
+ *
+ *  Created on: 03/07/2011
+ *      Author: francisco
+ */
+ #ifndef DMA_H
+ #define DMA_H
+
+#define DMA_MEMORY                  -1
+
+#define DMA_PERIPHERAL_SSP0_TX      0U
+#define DMA_PERIPHERAL_SSP0_RX      1U
+#define DMA_PERIPHERAL_SSP1_TX      2U
+#define DMA_PERIPHERAL_SSP1_RX      3U
+#define DMA_PERIPHERAL_ADC          4U
+#define DMA_PERIPHERAL_I2S0         5U
+#define DMA_PERIPHERAL_I2S1         6U
+#define DMA_PERIPHERAL_DAC          7U
+#define DMA_PERIPHERAL_UART0_TX     8U
+#define DMA_PERIPHERAL_UART0_RX     9U
+#define DMA_PERIPHERAL_UART1_TX     10U
+#define DMA_PERIPHERAL_UART1_RX     11U
+#define DMA_PERIPHERAL_UART2_TX     12U
+#define DMA_PERIPHERAL_UART2_RX     13U
+#define DMA_PERIPHERAL_UART3_TX     14U
+#define DMA_PERIPHERAL_UART3_RX     15U
+
+#define DMA_MEMORY_TO_MEMORY            0U
+#define DMA_MEMORY_TO_PERIPHERAL        1U
+#define DMA_PERIPHERAL_TO_MEMORY        2U
+#define DMA_PERIPHERAL_TO_PERIPHERAL    3U
+
+#define DMA_DEST_SIZE(n)            (n<<15)
+#define DMA_SRC_SIZE(n)             (n<<12)
+
+#define DMA_SRC_WIDTH_BYTE          (0U<<18)
+#define DMA_SRC_WIDTH_HALFWORD      (1U<<18)
+#define DMA_SRC_WIDTH_WORD          (2U<<18)
+
+#define DMA_DST_WIDTH_BYTE          (0U<<21)
+#define DMA_DST_WIDTH_HALFWORD      (1U<<21)
+#define DMA_DST_WIDTH_WORD          (2U<<21)
+
+#define DMA_SRC_INCREMENT           (1U<<26)
+#define DMA_DST_INCREMENT           (1U<<27)
+
+#define DMA_TC_INT                  (1U<<31)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct
+{
+    unsigned long int sourceAddr;
+    unsigned long int destAddr;
+    unsigned long int nextNode;
+    unsigned long int dmaControl;
+} dmaLinkedListNode;
+
+extern void init_dma(void);
+extern void setup_channel(dmaLinkedListNode* pList,int ch,int src,int dst);
+extern void stop_channel(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //#define DMA_H