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 12 /* 8 and 10 not used. */ 7 8 #define NETWORK_ETH_TX_DMA_NBR 0 /* Ethernet 0 out. */ 9 #define NETWORK_ETH_RX_DMA_NBR 1 /* Ethernet 0 in. */ 10 11 #define IO_PROC_DMA_TX_DMA_NBR 4 /* IO processor DMA0 out. */ 12 #define IO_PROC_DMA_RX_DMA_NBR 5 /* IO processor DMA0 in. */ 13 14 #define ASYNC_SER3_TX_DMA_NBR 2 /* Asynchronous serial port 3 out. */ 15 #define ASYNC_SER3_RX_DMA_NBR 3 /* Asynchronous serial port 3 in. */ 16 17 #define ASYNC_SER2_TX_DMA_NBR 6 /* Asynchronous serial port 2 out. */ 18 #define ASYNC_SER2_RX_DMA_NBR 7 /* Asynchronous serial port 2 in. */ 19 20 #define ASYNC_SER1_TX_DMA_NBR 4 /* Asynchronous serial port 1 out. */ 21 #define ASYNC_SER1_RX_DMA_NBR 5 /* Asynchronous serial port 1 in. */ 22 23 #define SYNC_SER_TX_DMA_NBR 6 /* Synchronous serial port 0 out. */ 24 #define SYNC_SER_RX_DMA_NBR 7 /* Synchronous serial port 0 in. */ 25 26 #define ASYNC_SER0_TX_DMA_NBR 0 /* Asynchronous serial port 0 out. */ 27 #define ASYNC_SER0_RX_DMA_NBR 1 /* Asynchronous serial port 0 in. */ 28 29 #define STRCOP_TX_DMA_NBR 2 /* Stream co-processor out. */ 30 #define STRCOP_RX_DMA_NBR 3 /* Stream co-processor in. */ 31 32 #define dma_eth0 dma_eth 33 #define dma_eth1 dma_eth 34 35 enum dma_owner { 36 dma_eth, 37 dma_ser0, 38 dma_ser1, 39 dma_ser2, 40 dma_ser3, 41 dma_ser4, 42 dma_iop, 43 dma_sser, 44 dma_strp, 45 dma_h264, 46 dma_jpeg 47 }; 48 49 int crisv32_request_dma(unsigned int dmanr, const char *device_id, 50 unsigned options, unsigned bandwidth, enum dma_owner owner); 51 void crisv32_free_dma(unsigned int dmanr); 52 53 /* Masks used by crisv32_request_dma options: */ 54 #define DMA_VERBOSE_ON_ERROR 1 55 #define DMA_PANIC_ON_ERROR (2|DMA_VERBOSE_ON_ERROR) 56 #define DMA_INT_MEM 4 57 58 #endif /* _ASM_ARCH_CRIS_DMA_H */ 59