1 files changed, 69 insertions, 0 deletions
diff --git a/target/linux/amazon/files/arch/mips/amazon/dma-core.h b/target/linux/amazon/files/arch/mips/amazon/dma-core.h
new file mode 100644
index 000000000..cb3d456c9
--- /dev/null
+++ b/target/linux/amazon/files/arch/mips/amazon/dma-core.h
@@ -0,0 +1,69 @@
+#ifndef DMA_CORE_H 
+#define DMA_CORE_H 
+
+#define AMAZON_DMA_REG32(reg_num)  *((volatile u32*)(reg_num))
+#define AMAZON_DMA_CH_STEP            4
+
+#define COMB_ISR_RX_MASK 0xfe000000
+#define COMB_ISR_TX_MASK 0x01f00000
+
+
+#define DMA_OWN   1
+#define CPU_OWN   0   
+#define DMA_MAJOR 250
+
+//Descriptors
+#define DMA_DESC_OWN_CPU		0x0
+#define DMA_DESC_OWN_DMA		0x80000000
+#define DMA_DESC_CPT_SET		0x40000000
+#define DMA_DESC_SOP_SET		0x20000000
+#define DMA_DESC_EOP_SET		0x10000000
+
+#define switch_rx_chan_base 0
+#define switch_tx_chan_base 7
+#define switch2_rx_chan_base 2
+#define switch2_tx_chan_base 8
+#define TPE_rx_chan_base    4
+#define TPE_tx_chan_base    9
+#define DPLus2FPI_rx_chan_base  6
+#define DPLus2FPI_tx_chan_base  11 
+
+#define RX_CHAN_NUM 7
+#define TX_CHAN_NUM 5
+#define CHAN_TOTAL_NUM       (RX_CHAN_NUM+TX_CHAN_NUM)
+#define DEFAULT_OFFSET 20
+#define DESCRIPTOR_SIZE 8
+
+typedef struct dev_list{
+   struct dma_device_info* dev;
+   int weight;
+   struct dev_list* prev;
+   struct dev_list* next;
+}dev_list; 
+
+typedef struct channel_info{
+   char device_name[16];
+   int occupied;
+   enum attr_t attr;  
+   int current_desc;
+   int weight;
+   int default_weight;
+   int desc_num;
+   int burst_len;
+   int desc_len;
+   int desc_ofst;
+   int packet_size;
+   int offset_from_base;
+   int control;
+   void* opt[DEFAULT_OFFSET];
+   u8* (*buffer_alloc)(int len,int* offset, void** opt);
+   int (*buffer_free)(u8* dataptr,void* opt);
+   int (*intr_handler)(struct dma_device_info* info,int status);
+
+   struct dma_device_info* dma_dev;
+}channel_info;
+
+
+
+#endif
+