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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 | #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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