LXR linux/arch/cris/include/arch-v32/mach-a3/mach/dma.h

   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
  35enum 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
  49int crisv32_request_dma(unsigned int dmanr, const char *device_id,
  50        unsigned options, unsigned bandwidth, enum dma_owner owner);
  51void 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