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1 | #ifndef _VME_BRIDGE_H_ |
2 | #define _VME_BRIDGE_H_ |
3 | |
4 | #define VME_CRCSR_BUF_SIZE (508*1024) |
5 | /* |
6 | * Resource structures |
7 | */ |
8 | struct vme_master_resource { |
9 | struct list_head list; |
10 | struct vme_bridge *parent; |
11 | /* |
12 | * We are likely to need to access the VME bus in interrupt context, so |
13 | * protect master routines with a spinlock rather than a mutex. |
14 | */ |
15 | spinlock_t lock; |
16 | int locked; |
17 | int number; |
18 | u32 address_attr; |
19 | u32 cycle_attr; |
20 | u32 width_attr; |
21 | struct resource bus_resource; |
22 | void __iomem *kern_base; |
23 | }; |
24 | |
25 | struct vme_slave_resource { |
26 | struct list_head list; |
27 | struct vme_bridge *parent; |
28 | struct mutex mtx; |
29 | int locked; |
30 | int number; |
31 | u32 address_attr; |
32 | u32 cycle_attr; |
33 | }; |
34 | |
35 | struct vme_dma_pattern { |
36 | u32 pattern; |
37 | u32 type; |
38 | }; |
39 | |
40 | struct vme_dma_pci { |
41 | dma_addr_t address; |
42 | }; |
43 | |
44 | struct vme_dma_vme { |
45 | unsigned long long address; |
46 | u32 aspace; |
47 | u32 cycle; |
48 | u32 dwidth; |
49 | }; |
50 | |
51 | struct vme_dma_list { |
52 | struct list_head list; |
53 | struct vme_dma_resource *parent; |
54 | struct list_head entries; |
55 | struct mutex mtx; |
56 | }; |
57 | |
58 | struct vme_dma_resource { |
59 | struct list_head list; |
60 | struct vme_bridge *parent; |
61 | struct mutex mtx; |
62 | int locked; |
63 | int number; |
64 | struct list_head pending; |
65 | struct list_head running; |
66 | u32 route_attr; |
67 | }; |
68 | |
69 | struct vme_lm_resource { |
70 | struct list_head list; |
71 | struct vme_bridge *parent; |
72 | struct mutex mtx; |
73 | int locked; |
74 | int number; |
75 | int monitors; |
76 | }; |
77 | |
78 | struct vme_bus_error { |
79 | struct list_head list; |
80 | unsigned long long address; |
81 | u32 attributes; |
82 | }; |
83 | |
84 | struct vme_callback { |
85 | void (*func)(int, int, void*); |
86 | void *priv_data; |
87 | }; |
88 | |
89 | struct vme_irq { |
90 | int count; |
91 | struct vme_callback callback[255]; |
92 | }; |
93 | |
94 | /* Allow 16 characters for name (including null character) */ |
95 | #define VMENAMSIZ 16 |
96 | |
97 | /* This structure stores all the information about one bridge |
98 | * The structure should be dynamically allocated by the driver and one instance |
99 | * of the structure should be present for each VME chip present in the system. |
100 | */ |
101 | struct vme_bridge { |
102 | char name[VMENAMSIZ]; |
103 | int num; |
104 | struct list_head master_resources; |
105 | struct list_head slave_resources; |
106 | struct list_head dma_resources; |
107 | struct list_head lm_resources; |
108 | |
109 | struct list_head vme_errors; /* List for errors generated on VME */ |
110 | struct list_head devices; /* List of devices on this bridge */ |
111 | |
112 | /* Bridge Info - XXX Move to private structure? */ |
113 | struct device *parent; /* Parent device (eg. pdev->dev for PCI) */ |
114 | void *driver_priv; /* Private pointer for the bridge driver */ |
115 | struct list_head bus_list; /* list of VME buses */ |
116 | |
117 | /* Interrupt callbacks */ |
118 | struct vme_irq irq[7]; |
119 | /* Locking for VME irq callback configuration */ |
120 | struct mutex irq_mtx; |
121 | |
122 | /* Slave Functions */ |
123 | int (*slave_get) (struct vme_slave_resource *, int *, |
124 | unsigned long long *, unsigned long long *, dma_addr_t *, |
125 | u32 *, u32 *); |
126 | int (*slave_set) (struct vme_slave_resource *, int, unsigned long long, |
127 | unsigned long long, dma_addr_t, u32, u32); |
128 | |
129 | /* Master Functions */ |
130 | int (*master_get) (struct vme_master_resource *, int *, |
131 | unsigned long long *, unsigned long long *, u32 *, u32 *, |
132 | u32 *); |
133 | int (*master_set) (struct vme_master_resource *, int, |
134 | unsigned long long, unsigned long long, u32, u32, u32); |
135 | ssize_t (*master_read) (struct vme_master_resource *, void *, size_t, |
136 | loff_t); |
137 | ssize_t (*master_write) (struct vme_master_resource *, void *, size_t, |
138 | loff_t); |
139 | unsigned int (*master_rmw) (struct vme_master_resource *, unsigned int, |
140 | unsigned int, unsigned int, loff_t); |
141 | |
142 | /* DMA Functions */ |
143 | int (*dma_list_add) (struct vme_dma_list *, struct vme_dma_attr *, |
144 | struct vme_dma_attr *, size_t); |
145 | int (*dma_list_exec) (struct vme_dma_list *); |
146 | int (*dma_list_empty) (struct vme_dma_list *); |
147 | |
148 | /* Interrupt Functions */ |
149 | void (*irq_set) (struct vme_bridge *, int, int, int); |
150 | int (*irq_generate) (struct vme_bridge *, int, int); |
151 | |
152 | /* Location monitor functions */ |
153 | int (*lm_set) (struct vme_lm_resource *, unsigned long long, u32, u32); |
154 | int (*lm_get) (struct vme_lm_resource *, unsigned long long *, u32 *, |
155 | u32 *); |
156 | int (*lm_attach) (struct vme_lm_resource *, int, void (*callback)(int)); |
157 | int (*lm_detach) (struct vme_lm_resource *, int); |
158 | |
159 | /* CR/CSR space functions */ |
160 | int (*slot_get) (struct vme_bridge *); |
161 | |
162 | /* Bridge parent interface */ |
163 | void *(*alloc_consistent)(struct device *dev, size_t size, |
164 | dma_addr_t *dma); |
165 | void (*free_consistent)(struct device *dev, size_t size, |
166 | void *vaddr, dma_addr_t dma); |
167 | }; |
168 | |
169 | void vme_irq_handler(struct vme_bridge *, int, int); |
170 | |
171 | int vme_register_bridge(struct vme_bridge *); |
172 | void vme_unregister_bridge(struct vme_bridge *); |
173 | |
174 | #endif /* _VME_BRIDGE_H_ */ |
175 |
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Tags:
od-2011-09-04
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