LXR linux/arch/sparc/include/asm/ebus

   1#ifndef __ASM_SPARC_EBUS_DMA_H
   2#define __ASM_SPARC_EBUS_DMA_H
   3
   4struct ebus_dma_info {
   5        spinlock_t      lock;
   6        void __iomem    *regs;
   7
   8        unsigned int    flags;
   9#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER         0x00000001
  10#define EBUS_DMA_FLAG_TCI_DISABLE               0x00000002
  11
  12        /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
  13         * set.
  14         */
  15        void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
  16        void *client_cookie;
  17        unsigned int    irq;
  18#define EBUS_DMA_EVENT_ERROR    1
  19#define EBUS_DMA_EVENT_DMA      2
  20#define EBUS_DMA_EVENT_DEVICE   4
  21
  22        unsigned char   name[64];
  23};
  24
  25int ebus_dma_register(struct ebus_dma_info *p);
  26int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
  27void ebus_dma_unregister(struct ebus_dma_info *p);
  28int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
  29                            size_t len);
  30void ebus_dma_prepare(struct ebus_dma_info *p, int write);
  31unsigned int ebus_dma_residue(struct ebus_dma_info *p);
  32unsigned int ebus_dma_addr(struct ebus_dma_info *p);
  33void ebus_dma_enable(struct ebus_dma_info *p, int on);
  34
  35#endif /* __ASM_SPARC_EBUS_DMA_H */
  36