release/src-rt-6.x.4708/linux/linux-2.6.36/arch/cris/include/arch-v32/mach-fs/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        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 {
  51   dma_eth0,
  52   dma_eth1,
  53   dma_iop0,
  54   dma_iop1,
  55   dma_ser0,
  56   dma_ser1,
  57   dma_ser2,
  58   dma_ser3,
  59   dma_sser0,
  60   dma_sser1,
  61   dma_ata,
  62   dma_strp,
  63   dma_ext0,
  64   dma_ext1,
  65   dma_ext2,
  66   dma_ext3
  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 */