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dma.h
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1 #ifndef _ASM_ARCH_CRIS_DMA_H
2 #define _ASM_ARCH_CRIS_DMA_H
3 
4 /* Defines for using and allocating dma channels. */
5 
6 #define MAX_DMA_CHANNELS 10
7 
8 #define NETWORK_ETH0_TX_DMA_NBR 0 /* Ethernet 0 out. */
9 #define NETWORK_ETH0 RX_DMA_NBR 1 /* Ethernet 0 in. */
10 
11 #define IO_PROC_DMA0_TX_DMA_NBR 2 /* IO processor DMA0 out. */
12 #define IO_PROC_DMA0_RX_DMA_NBR 3 /* IO processor DMA0 in. */
13 
14 #define ATA_TX_DMA_NBR 2 /* ATA interface out. */
15 #define ATA_RX_DMA_NBR 3 /* ATA interface in. */
16 
17 #define ASYNC_SER2_TX_DMA_NBR 2 /* Asynchronous serial port 2 out. */
18 #define ASYNC_SER2_RX_DMA_NBR 3 /* Asynchronous serial port 2 in. */
19 
20 #define IO_PROC_DMA1_TX_DMA_NBR 4 /* IO processor DMA1 out. */
21 #define IO_PROC_DMA1_RX_DMA_NBR 5 /* IO processor DMA1 in. */
22 
23 #define ASYNC_SER1_TX_DMA_NBR 4 /* Asynchronous serial port 1 out. */
24 #define ASYNC_SER1_RX_DMA_NBR 5 /* Asynchronous serial port 1 in. */
25 
26 #define SYNC_SER0_TX_DMA_NBR 4 /* Synchronous serial port 0 out. */
27 #define SYNC_SER0_RX_DMA_NBR 5 /* Synchronous serial port 0 in. */
28 
29 #define EXTDMA0_TX_DMA_NBR 6 /* External DMA 0 out. */
30 #define EXTDMA1_RX_DMA_NBR 7 /* External DMA 1 in. */
31 
32 #define ASYNC_SER0_TX_DMA_NBR 6 /* Asynchronous serial port 0 out. */
33 #define ASYNC_SER0_RX_DMA_NBR 7 /* Asynchronous serial port 0 in. */
34 
35 #define SYNC_SER1_TX_DMA_NBR 6 /* Synchronous serial port 1 out. */
36 #define SYNC_SER1_RX_DMA_NBR 7 /* Synchronous serial port 1 in. */
37 
38 #define NETWORK_ETH1_TX_DMA_NBR 6 /* Ethernet 1 out. */
39 #define NETWORK_ETH1_RX_DMA_NBR 7 /* Ethernet 1 in. */
40 
41 #define EXTDMA2_TX_DMA_NBR 8 /* External DMA 2 out. */
42 #define EXTDMA3_RX_DMA_NBR 9 /* External DMA 3 in. */
43 
44 #define STRCOP_TX_DMA_NBR 8 /* Stream co-processor out. */
45 #define STRCOP_RX_DMA_NBR 9 /* Stream co-processor in. */
46 
47 #define ASYNC_SER3_TX_DMA_NBR 8 /* Asynchronous serial port 3 out. */
48 #define ASYNC_SER3_RX_DMA_NBR 9 /* Asynchronous serial port 3 in. */
49 
50 enum dma_owner {
67 };
68 
69 int crisv32_request_dma(unsigned int dmanr, const char *device_id,
70  unsigned options, unsigned bandwidth,
71  enum dma_owner owner);
72 void crisv32_free_dma(unsigned int dmanr);
73 
74 /* Masks used by crisv32_request_dma options: */
75 #define DMA_VERBOSE_ON_ERROR 1
76 #define DMA_PANIC_ON_ERROR (2|DMA_VERBOSE_ON_ERROR)
77 #define DMA_INT_MEM 4
78 
79 #endif /* _ASM_ARCH_CRIS_DMA_H */