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#ifndef _VME_BRIDGE_H_
#define _VME_BRIDGE_H_
#include <linux/vme.h>
#define VME_CRCSR_BUF_SIZE (508*1024)
/*
* 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;
u32 address_attr;
u32 cycle_attr;
u32 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;
u32 address_attr;
u32 cycle_attr;
};
struct vme_dma_pattern {
u32 pattern;
u32 type;
};
struct vme_dma_pci {
dma_addr_t address;
};
struct vme_dma_vme {
unsigned long long address;
u32 aspace;
u32 cycle;
u32 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;
u32 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_error_handler {
struct list_head list;
unsigned long long start; /* Beginning of error window */
unsigned long long end; /* End of error window */
unsigned long long first_error; /* Address of the first error */
u32 aspace; /* Address space of error window*/
unsigned num_errors; /* Number of errors */
};
struct vme_callback {
void (*func)(int, int, void*);
void *priv_data;
};
struct vme_irq {
int count;
struct vme_callback callback[VME_NUM_STATUSID];
};
/* 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.
*/
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;
/* List for registered errors handlers */
struct list_head vme_error_handlers;
/* List of devices on this bridge */
struct list_head devices;
/* Bridge Info - XXX Move to private structure? */
struct device *parent; /* Parent device (eg. pdev->dev for PCI) */
void *driver_priv; /* Private pointer for the bridge driver */
struct list_head bus_list; /* list of VME buses */
/* 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 *,
u32 *, u32 *);
int (*slave_set) (struct vme_slave_resource *, int, unsigned long long,
unsigned long long, dma_addr_t, u32, u32);
/* Master Functions */
int (*master_get) (struct vme_master_resource *, int *,
unsigned long long *, unsigned long long *, u32 *, u32 *,
u32 *);
int (*master_set) (struct vme_master_resource *, int,
unsigned long long, unsigned long long, u32, u32, u32);
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, u32, u32);
int (*lm_get) (struct vme_lm_resource *, unsigned long long *, u32 *,
u32 *);
int (*lm_attach)(struct vme_lm_resource *, int,
void (*callback)(void *), void *);
int (*lm_detach) (struct vme_lm_resource *, int);
/* CR/CSR space functions */
int (*slot_get) (struct vme_bridge *);
/* Bridge parent interface */
void *(*alloc_consistent)(struct device *dev, size_t size,
dma_addr_t *dma);
void (*free_consistent)(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma);
};
void vme_bus_error_handler(struct vme_bridge *bridge,
unsigned long long address, int am);
void vme_irq_handler(struct vme_bridge *, int, int);
struct vme_bridge *vme_init_bridge(struct vme_bridge *);
int vme_register_bridge(struct vme_bridge *);
void vme_unregister_bridge(struct vme_bridge *);
struct vme_error_handler *vme_register_error_handler(
struct vme_bridge *bridge, u32 aspace,
unsigned long long address, size_t len);
void vme_unregister_error_handler(struct vme_error_handler *handler);
#endif /* _VME_BRIDGE_H_ */
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