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#ifndef _VME_BRIDGE_H_
#define _VME_BRIDGE_H_
#define VME_CRCSR_BUF_SIZE (508*1024)
#define VME_SLOTS_MAX 32
/*
* Resource structures
*/
struct vme_master_resource {
struct list_head list;
struct vme_bridge *parent;
/*
* We are likely to need to access the VME bus in interrupt context, so
* protect master routines with a spinlock rather than a mutex.
*/
spinlock_t lock;
int locked;
int number;
vme_address_t address_attr;
vme_cycle_t cycle_attr;
vme_width_t width_attr;
struct resource bus_resource;
void __iomem *kern_base;
};
struct vme_slave_resource {
struct list_head list;
struct vme_bridge *parent;
struct mutex mtx;
int locked;
int number;
vme_address_t address_attr;
vme_cycle_t cycle_attr;
};
struct vme_dma_pattern {
u32 pattern;
vme_pattern_t type;
};
struct vme_dma_pci {
dma_addr_t address;
};
struct vme_dma_vme {
unsigned long long address;
vme_address_t aspace;
vme_cycle_t cycle;
vme_width_t dwidth;
};
struct vme_dma_list {
struct list_head list;
struct vme_dma_resource *parent;
struct list_head entries;
struct mutex mtx;
};
struct vme_dma_resource {
struct list_head list;
struct vme_bridge *parent;
struct mutex mtx;
int locked;
int number;
struct list_head pending;
struct list_head running;
vme_dma_route_t route_attr;
};
struct vme_lm_resource {
struct list_head list;
struct vme_bridge *parent;
struct mutex mtx;
int locked;
int number;
int monitors;
};
struct vme_bus_error {
struct list_head list;
unsigned long long address;
u32 attributes;
};
struct vme_callback {
void (*func)(int, int, void*);
void *priv_data;
};
struct vme_irq {
int count;
struct vme_callback callback[255];
};
/* Allow 16 characters for name (including null character) */
#define VMENAMSIZ 16
/* This structure stores all the information about one bridge
* The structure should be dynamically allocated by the driver and one instance
* of the structure should be present for each VME chip present in the system.
*
* Currently we assume that all chips are PCI-based
*/
struct vme_bridge {
char name[VMENAMSIZ];
int num;
struct list_head master_resources;
struct list_head slave_resources;
struct list_head dma_resources;
struct list_head lm_resources;
struct list_head vme_errors; /* List for errors generated on VME */
/* Bridge Info - XXX Move to private structure? */
struct device *parent; /* Generic device struct (pdev->dev for PCI) */
void *driver_priv; /* Private pointer for the bridge driver */
struct device dev[VME_SLOTS_MAX]; /* Device registered with
* device model on VME bus
*/
/* Interrupt callbacks */
struct vme_irq irq[7];
/* Locking for VME irq callback configuration */
struct mutex irq_mtx;
/* Slave Functions */
int (*slave_get) (struct vme_slave_resource *, int *,
unsigned long long *, unsigned long long *, dma_addr_t *,
vme_address_t *, vme_cycle_t *);
int (*slave_set) (struct vme_slave_resource *, int, unsigned long long,
unsigned long long, dma_addr_t, vme_address_t, vme_cycle_t);
/* Master Functions */
int (*master_get) (struct vme_master_resource *, int *,
unsigned long long *, unsigned long long *, vme_address_t *,
vme_cycle_t *, vme_width_t *);
int (*master_set) (struct vme_master_resource *, int,
unsigned long long, unsigned long long, vme_address_t,
vme_cycle_t, vme_width_t);
ssize_t (*master_read) (struct vme_master_resource *, void *, size_t,
loff_t);
ssize_t (*master_write) (struct vme_master_resource *, void *, size_t,
loff_t);
unsigned int (*master_rmw) (struct vme_master_resource *, unsigned int,
unsigned int, unsigned int, loff_t);
/* DMA Functions */
int (*dma_list_add) (struct vme_dma_list *, struct vme_dma_attr *,
struct vme_dma_attr *, size_t);
int (*dma_list_exec) (struct vme_dma_list *);
int (*dma_list_empty) (struct vme_dma_list *);
/* Interrupt Functions */
void (*irq_set) (struct vme_bridge *, int, int, int);
int (*irq_generate) (struct vme_bridge *, int, int);
/* Location monitor functions */
int (*lm_set) (struct vme_lm_resource *, unsigned long long,
vme_address_t, vme_cycle_t);
int (*lm_get) (struct vme_lm_resource *, unsigned long long *,
vme_address_t *, vme_cycle_t *);
int (*lm_attach) (struct vme_lm_resource *, int, void (*callback)(int));
int (*lm_detach) (struct vme_lm_resource *, int);
/* CR/CSR space functions */
int (*slot_get) (struct vme_bridge *);
};
void vme_irq_handler(struct vme_bridge *, int, int);
int vme_register_bridge(struct vme_bridge *);
void vme_unregister_bridge(struct vme_bridge *);
#endif /* _VME_BRIDGE_H_ */
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