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#ifndef _ALPHA_AGP_BACKEND_H

#define _ALPHA_AGP_BACKEND_H 1

typedef union _alpha_agp_mode {

        struct {

                u32 rate : 3;

                u32 reserved0 : 1;

                u32 fw : 1;

                u32 fourgb : 1;

                u32 reserved1 : 2;

                u32 enable : 1;

                u32 sba : 1;

                u32 reserved2 : 14;

                u32 rq : 8;

        } bits;

        u32 lw;

} alpha_agp_mode;

typedef struct _alpha_agp_info {

        enum chipset_type type;

        struct pci_controller *hose;

        struct {

                dma_addr_t bus_base;

                unsigned long size;

                void *sysdata;

        } aperture;

        alpha_agp_mode capability;

        alpha_agp_mode mode;

        void *private;

        struct alpha_agp_ops *ops;

} alpha_agp_info;

struct alpha_agp_ops {

        int (*setup)(alpha_agp_info *);

        void (*cleanup)(alpha_agp_info *);

        int (*configure)(alpha_agp_info *);

        int (*bind)(alpha_agp_info *, off_t, agp_memory *);

        int (*unbind)(alpha_agp_info *, off_t, agp_memory *);

        unsigned long (*translate)(alpha_agp_info *, dma_addr_t);

};

#endif /* _ALPHA_AGP_BACKEND_H */