| #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 pci_resource; /* XXX Rename to be bus agnostic */ |
| 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; |
| }; |
| |
| 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 * base; /* Base Address of device registers */ |
| |
| struct device dev[VME_SLOTS_MAX]; /* Device registered with |
| * device model on VME bus |
| */ |
| |
| /* Interrupt callbacks */ |
| struct vme_irq irq[7]; |
| |
| /* 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 */ |
| int (*request_irq) (int, int, void (*cback)(int, int, void*), void *); |
| void (*free_irq) (int, int); |
| int (*generate_irq) (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) (void); |
| /* Use standard master read and write functions to access CR/CSR */ |
| |
| #if 0 |
| int (*set_prefetch) (void); |
| int (*get_prefetch) (void); |
| int (*set_arbiter) (void); |
| int (*get_arbiter) (void); |
| int (*set_requestor) (void); |
| int (*get_requestor) (void); |
| #endif |
| }; |
| |
| int vme_register_bridge (struct vme_bridge *); |
| void vme_unregister_bridge (struct vme_bridge *); |
| |
| #endif /* _VME_BRIDGE_H_ */ |
| |
| #if 0 |
| /* |
| * VMEbus GET INFO Arg Structure |
| */ |
| struct vmeInfoCfg { |
| int vmeSlotNum; /* VME slot number of interest */ |
| int boardResponded; /* Board responded */ |
| char sysConFlag; /* System controller flag */ |
| int vmeControllerID; /* Vendor/device ID of VME bridge */ |
| int vmeControllerRev; /* Revision of VME bridge */ |
| char osName[8]; /* Name of OS e.g. "Linux" */ |
| int vmeSharedDataValid; /* Validity of data struct */ |
| int vmeDriverRev; /* Revision of VME driver */ |
| unsigned int vmeAddrHi[8]; /* Address on VME bus */ |
| unsigned int vmeAddrLo[8]; /* Address on VME bus */ |
| unsigned int vmeSize[8]; /* Size on VME bus */ |
| unsigned int vmeAm[8]; /* Address modifier on VME bus */ |
| int reserved; /* For future use */ |
| }; |
| typedef struct vmeInfoCfg vmeInfoCfg_t; |
| |
| /* |
| * VMEbus Requester Arg Structure |
| */ |
| struct vmeRequesterCfg { |
| int requestLevel; /* Requester Bus Request Level */ |
| char fairMode; /* Requester Fairness Mode Indicator */ |
| int releaseMode; /* Requester Bus Release Mode */ |
| int timeonTimeoutTimer; /* Master Time-on Time-out Timer */ |
| int timeoffTimeoutTimer; /* Master Time-off Time-out Timer */ |
| int reserved; /* For future use */ |
| }; |
| typedef struct vmeRequesterCfg vmeRequesterCfg_t; |
| |
| /* |
| * VMEbus Arbiter Arg Structure |
| */ |
| struct vmeArbiterCfg { |
| vme_arbitration_t arbiterMode; /* Arbitration Scheduling Algorithm */ |
| char arbiterTimeoutFlag; /* Arbiter Time-out Timer Indicator */ |
| int globalTimeoutTimer; /* VMEbus Global Time-out Timer */ |
| char noEarlyReleaseFlag; /* No Early Release on BBUSY */ |
| int reserved; /* For future use */ |
| }; |
| typedef struct vmeArbiterCfg vmeArbiterCfg_t; |
| |
| |
| /* |
| * VMEbus RMW Configuration Data |
| */ |
| struct vmeRmwCfg { |
| unsigned int targetAddrU; /* VME Address (Upper) to trigger RMW cycle */ |
| unsigned int targetAddr; /* VME Address (Lower) to trigger RMW cycle */ |
| vme_address_t addrSpace; /* VME Address Space */ |
| int enableMask; /* Bit mask defining the bits of interest */ |
| int compareData; /* Data to be compared with the data read */ |
| int swapData; /* Data written to the VMEbus on success */ |
| int maxAttempts; /* Maximum times to try */ |
| int numAttempts; /* Number of attempts before success */ |
| int reserved; /* For future use */ |
| |
| }; |
| typedef struct vmeRmwCfg vmeRmwCfg_t; |
| |
| /* |
| * VMEbus Location Monitor Arg Structure |
| */ |
| struct vmeLmCfg { |
| unsigned int addrU; /* Location Monitor Address upper */ |
| unsigned int addr; /* Location Monitor Address lower */ |
| vme_address_t addrSpace; /* Address Space */ |
| int userAccessType; /* User/Supervisor Access Type */ |
| int dataAccessType; /* Data/Program Access Type */ |
| int lmWait; /* Time to wait for access */ |
| int lmEvents; /* Lm event mask */ |
| int reserved; /* For future use */ |
| }; |
| typedef struct vmeLmCfg vmeLmCfg_t; |
| #endif |