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

   1 /*
   2  * arch/arm/mach-ep93xx/include/mach/dma.h
   3  */
   4
   5 #ifndef __ASM_ARCH_DMA_H
   6 #define __ASM_ARCH_DMA_H
   7
   8 #include <linux/list.h>
   9 #include <linux/types.h>
  10
  11 struct ep93xx_dma_buffer {
  12         struct list_head        list;
  13         u32                     bus_addr;
  14         u16                     size;
  15 };
  16
  17 struct ep93xx_dma_m2p_client {
  18         char                    *name;
  19         u8                      flags;
  20         void                    *cookie;
  21         void                    (*buffer_started)(void *cookie,
  22                                         struct ep93xx_dma_buffer *buf);
  23         void                    (*buffer_finished)(void *cookie,
  24                                         struct ep93xx_dma_buffer *buf,
  25                                         int bytes, int error);
  26
  27         /* Internal to the DMA code.  */
  28         void                    *channel;
  29 };
  30
  31 #define EP93XX_DMA_M2P_PORT_I2S1        0x00
  32 #define EP93XX_DMA_M2P_PORT_I2S2        0x01
  33 #define EP93XX_DMA_M2P_PORT_AAC1        0x02
  34 #define EP93XX_DMA_M2P_PORT_AAC2        0x03
  35 #define EP93XX_DMA_M2P_PORT_AAC3        0x04
  36 #define EP93XX_DMA_M2P_PORT_I2S3        0x05
  37 #define EP93XX_DMA_M2P_PORT_UART1       0x06
  38 #define EP93XX_DMA_M2P_PORT_UART2       0x07
  39 #define EP93XX_DMA_M2P_PORT_UART3       0x08
  40 #define EP93XX_DMA_M2P_PORT_IRDA        0x09
  41 #define EP93XX_DMA_M2P_PORT_MASK        0x0f
  42 #define EP93XX_DMA_M2P_TX               0x00
  43 #define EP93XX_DMA_M2P_RX               0x10
  44 #define EP93XX_DMA_M2P_ABORT_ON_ERROR   0x20
  45 #define EP93XX_DMA_M2P_IGNORE_ERROR     0x40
  46 #define EP93XX_DMA_M2P_ERROR_MASK       0x60
  47
  48 int  ep93xx_dma_m2p_client_register(struct ep93xx_dma_m2p_client *m2p);
  49 void ep93xx_dma_m2p_client_unregister(struct ep93xx_dma_m2p_client *m2p);
  50 void ep93xx_dma_m2p_submit(struct ep93xx_dma_m2p_client *m2p,
  51                            struct ep93xx_dma_buffer *buf);
  52 void ep93xx_dma_m2p_submit_recursive(struct ep93xx_dma_m2p_client *m2p,
  53                                      struct ep93xx_dma_buffer *buf);
  54 void ep93xx_dma_m2p_flush(struct ep93xx_dma_m2p_client *m2p);
  55
  56 #endif /* __ASM_ARCH_DMA_H */