root/include/linux/vme.h

#ifndef _VME_H_
#define _VME_H_

/* Resource Type */
enum vme_resource_type {
        VME_MASTER,
        VME_SLAVE,
        VME_DMA,
        VME_LM
};

/* VME Address Spaces */
#define VME_A16         0x1
#define VME_A24         0x2
#define VME_A32         0x4
#define VME_A64         0x8
#define VME_CRCSR       0x10
#define VME_USER1       0x20
#define VME_USER2       0x40
#define VME_USER3       0x80
#define VME_USER4       0x100

#define VME_A16_MAX     0x10000ULL
#define VME_A24_MAX     0x1000000ULL
#define VME_A32_MAX     0x100000000ULL
#define VME_A64_MAX     0x10000000000000000ULL
#define VME_CRCSR_MAX   0x1000000ULL


/* VME Cycle Types */
#define VME_SCT         0x1
#define VME_BLT         0x2
#define VME_MBLT        0x4
#define VME_2eVME       0x8
#define VME_2eSST       0x10
#define VME_2eSSTB      0x20

#define VME_2eSST160    0x100
#define VME_2eSST267    0x200
#define VME_2eSST320    0x400

#define VME_SUPER       0x1000
#define VME_USER        0x2000
#define VME_PROG        0x4000
#define VME_DATA        0x8000

/* VME Data Widths */
#define VME_D8          0x1
#define VME_D16         0x2
#define VME_D32         0x4
#define VME_D64         0x8

/* Arbitration Scheduling Modes */
#define VME_R_ROBIN_MODE        0x1
#define VME_PRIORITY_MODE       0x2

#define VME_DMA_PATTERN                 (1<<0)
#define VME_DMA_PCI                     (1<<1)
#define VME_DMA_VME                     (1<<2)

#define VME_DMA_PATTERN_BYTE            (1<<0)
#define VME_DMA_PATTERN_WORD            (1<<1)
#define VME_DMA_PATTERN_INCREMENT       (1<<2)

#define VME_DMA_VME_TO_MEM              (1<<0)
#define VME_DMA_MEM_TO_VME              (1<<1)
#define VME_DMA_VME_TO_VME              (1<<2)
#define VME_DMA_MEM_TO_MEM              (1<<3)
#define VME_DMA_PATTERN_TO_VME          (1<<4)
#define VME_DMA_PATTERN_TO_MEM          (1<<5)

struct vme_dma_attr {
        u32 type;
        void *private;
};

struct vme_resource {
        enum vme_resource_type type;
        struct list_head *entry;
};

extern struct bus_type vme_bus_type;

/* VME_MAX_BRIDGES comes from the type of vme_bus_numbers */
#define VME_MAX_BRIDGES         (sizeof(unsigned int)*8)
#define VME_MAX_SLOTS           32

#define VME_SLOT_CURRENT        -1
#define VME_SLOT_ALL            -2

/**
 * Structure representing a VME device
 * @num: The device number
 * @bridge: Pointer to the bridge device this device is on
 * @dev: Internal device structure
 * @drv_list: List of devices (per driver)
 * @bridge_list: List of devices (per bridge)
 */
struct vme_dev {
        int num;
        struct vme_bridge *bridge;
        struct device dev;
        struct list_head drv_list;
        struct list_head bridge_list;
};

struct vme_driver {
        struct list_head node;
        const char *name;
        int (*match)(struct vme_dev *);
        int (*probe)(struct vme_dev *);
        int (*remove)(struct vme_dev *);
        void (*shutdown)(void);
        struct device_driver driver;
        struct list_head devices;
};

void *vme_alloc_consistent(struct vme_resource *, size_t, dma_addr_t *);
void vme_free_consistent(struct vme_resource *, size_t,  void *,
        dma_addr_t);

size_t vme_get_size(struct vme_resource *);

struct vme_resource *vme_slave_request(struct vme_dev *, u32, u32);
int vme_slave_set(struct vme_resource *, int, unsigned long long,
        unsigned long long, dma_addr_t, u32, u32);
int vme_slave_get(struct vme_resource *, int *, unsigned long long *,
        unsigned long long *, dma_addr_t *, u32 *, u32 *);
void vme_slave_free(struct vme_resource *);

struct vme_resource *vme_master_request(struct vme_dev *, u32, u32, u32);
int vme_master_set(struct vme_resource *, int, unsigned long long,
        unsigned long long, u32, u32, u32);
int vme_master_get(struct vme_resource *, int *, unsigned long long *,
        unsigned long long *, u32 *, u32 *, u32 *);
ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t);
ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t);
unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int,
        unsigned int, loff_t);
void vme_master_free(struct vme_resource *);

struct vme_resource *vme_dma_request(struct vme_dev *, u32);
struct vme_dma_list *vme_new_dma_list(struct vme_resource *);
struct vme_dma_attr *vme_dma_pattern_attribute(u32, u32);
struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t);
struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, u32, u32, u32);
void vme_dma_free_attribute(struct vme_dma_attr *);
int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *,
        struct vme_dma_attr *, size_t);
int vme_dma_list_exec(struct vme_dma_list *);
int vme_dma_list_free(struct vme_dma_list *);
int vme_dma_free(struct vme_resource *);

int vme_irq_request(struct vme_dev *, int, int,
        void (*callback)(int, int, void *), void *);
void vme_irq_free(struct vme_dev *, int, int);
int vme_irq_generate(struct vme_dev *, int, int);

struct vme_resource *vme_lm_request(struct vme_dev *);
int vme_lm_count(struct vme_resource *);
int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32);
int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *);
int vme_lm_attach(struct vme_resource *, int, void (*callback)(int));
int vme_lm_detach(struct vme_resource *, int);
void vme_lm_free(struct vme_resource *);

int vme_slot_num(struct vme_dev *);
int vme_bus_num(struct vme_dev *);

int vme_register_driver(struct vme_driver *, unsigned int);
void vme_unregister_driver(struct vme_driver *);


#endif /* _VME_H_ */