ebus_dma.h

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#ifndef __ASM_SPARC_EBUS_DMA_H
#define __ASM_SPARC_EBUS_DMA_H

struct ebus_dma_info {
    spinlock_t  lock;
    void __iomem    *regs;

    unsigned int    flags;
#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER     0x00000001
#define EBUS_DMA_FLAG_TCI_DISABLE       0x00000002

    /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
     * set.
     */
    void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
    void *client_cookie;
    unsigned int    irq;
#define EBUS_DMA_EVENT_ERROR    1
#define EBUS_DMA_EVENT_DMA  2
#define EBUS_DMA_EVENT_DEVICE   4

    unsigned char   name[64];
};

extern int ebus_dma_register(struct ebus_dma_info *p);
extern int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
extern void ebus_dma_unregister(struct ebus_dma_info *p);
extern int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
                size_t len);
extern void ebus_dma_prepare(struct ebus_dma_info *p, int write);
extern unsigned int ebus_dma_residue(struct ebus_dma_info *p);
extern unsigned int ebus_dma_addr(struct ebus_dma_info *p);
extern void ebus_dma_enable(struct ebus_dma_info *p, int on);

#endif /* __ASM_SPARC_EBUS_DMA_H */