| #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 *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_ */ |