arch/arm/mach-ep93xx/include/mach/dma.h

   1 #ifndef __ASM_ARCH_DMA_H
   2 #define __ASM_ARCH_DMA_H
   3
   4 #include <linux/list.h>
   5 #include <linux/types.h>
   6
   7 struct ep93xx_dma_buffer {
   8         struct list_head        list;
   9         u32                     bus_addr;
  10         u16                     size;
  11 };
  12
  13 struct ep93xx_dma_m2p_client {
  14         char                    *name;
  15         u8                      flags;
  16         void                    *cookie;
  17         void                    (*buffer_started)(void *cookie,
  18                                         struct ep93xx_dma_buffer *buf);
  19         void                    (*buffer_finished)(void *cookie,
  20                                         struct ep93xx_dma_buffer *buf,
  21                                         int bytes, int error);
  22
  23         /* Internal to the DMA code.  */
  24         void                    *channel;
  25 };
  26
  27 #define EP93XX_DMA_M2P_PORT_I2S1        0x00
  28 #define EP93XX_DMA_M2P_PORT_I2S2        0x01
  29 #define EP93XX_DMA_M2P_PORT_AAC1        0x02
  30 #define EP93XX_DMA_M2P_PORT_AAC2        0x03
  31 #define EP93XX_DMA_M2P_PORT_AAC3        0x04
  32 #define EP93XX_DMA_M2P_PORT_I2S3        0x05
  33 #define EP93XX_DMA_M2P_PORT_UART1       0x06
  34 #define EP93XX_DMA_M2P_PORT_UART2       0x07
  35 #define EP93XX_DMA_M2P_PORT_UART3       0x08
  36 #define EP93XX_DMA_M2P_PORT_IRDA        0x09
  37 #define EP93XX_DMA_M2P_PORT_MASK        0x0f
  38 #define EP93XX_DMA_M2P_TX               0x00
  39 #define EP93XX_DMA_M2P_RX               0x10
  40 #define EP93XX_DMA_M2P_ABORT_ON_ERROR   0x20
  41 #define EP93XX_DMA_M2P_IGNORE_ERROR     0x40
  42 #define EP93XX_DMA_M2P_ERROR_MASK       0x60
  43
  44 int  ep93xx_dma_m2p_client_register(struct ep93xx_dma_m2p_client *m2p);
  45 void ep93xx_dma_m2p_client_unregister(struct ep93xx_dma_m2p_client *m2p);
  46 void ep93xx_dma_m2p_submit(struct ep93xx_dma_m2p_client *m2p,
  47                            struct ep93xx_dma_buffer *buf);
  48 void ep93xx_dma_m2p_submit_recursive(struct ep93xx_dma_m2p_client *m2p,
  49                                      struct ep93xx_dma_buffer *buf);
  50 void ep93xx_dma_m2p_flush(struct ep93xx_dma_m2p_client *m2p);
  51
  52 #endif /* __ASM_ARCH_DMA_H */