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a17a75e2 MW |
1 | #ifndef _VME_BRIDGE_H_ |
2 | #define _VME_BRIDGE_H_ | |
3 | ||
4 | #define VME_CRCSR_BUF_SIZE (508*1024) | |
5 | #define VME_SLOTS_MAX 32 | |
6 | /* | |
7 | * Resource structures | |
8 | */ | |
9 | struct vme_master_resource { | |
10 | struct list_head list; | |
11 | struct vme_bridge *parent; | |
12 | /* | |
13 | * We are likely to need to access the VME bus in interrupt context, so | |
400822fe | 14 | * protect master routines with a spinlock rather than a mutex. |
a17a75e2 MW |
15 | */ |
16 | spinlock_t lock; | |
17 | int locked; | |
18 | int number; | |
19 | vme_address_t address_attr; | |
20 | vme_cycle_t cycle_attr; | |
21 | vme_width_t width_attr; | |
8fafb476 | 22 | struct resource bus_resource; |
a17a75e2 MW |
23 | void *kern_base; |
24 | }; | |
25 | ||
26 | struct vme_slave_resource { | |
27 | struct list_head list; | |
28 | struct vme_bridge *parent; | |
400822fe | 29 | struct mutex mtx; |
a17a75e2 MW |
30 | int locked; |
31 | int number; | |
32 | vme_address_t address_attr; | |
33 | vme_cycle_t cycle_attr; | |
34 | }; | |
35 | ||
36 | struct vme_dma_pattern { | |
37 | u32 pattern; | |
38 | vme_pattern_t type; | |
39 | }; | |
40 | ||
41 | struct vme_dma_pci { | |
42 | dma_addr_t address; | |
43 | }; | |
44 | ||
45 | struct vme_dma_vme { | |
46 | unsigned long long address; | |
47 | vme_address_t aspace; | |
48 | vme_cycle_t cycle; | |
49 | vme_width_t dwidth; | |
50 | }; | |
51 | ||
52 | struct vme_dma_list { | |
53 | struct list_head list; | |
54 | struct vme_dma_resource *parent; | |
55 | struct list_head entries; | |
400822fe | 56 | struct mutex mtx; |
a17a75e2 MW |
57 | }; |
58 | ||
59 | struct vme_dma_resource { | |
60 | struct list_head list; | |
61 | struct vme_bridge *parent; | |
400822fe | 62 | struct mutex mtx; |
a17a75e2 MW |
63 | int locked; |
64 | int number; | |
65 | struct list_head pending; | |
66 | struct list_head running; | |
4f723df4 | 67 | vme_dma_route_t route_attr; |
a17a75e2 MW |
68 | }; |
69 | ||
42fb5031 MW |
70 | struct vme_lm_resource { |
71 | struct list_head list; | |
72 | struct vme_bridge *parent; | |
73 | struct mutex mtx; | |
74 | int locked; | |
75 | int number; | |
76 | int monitors; | |
77 | }; | |
78 | ||
a17a75e2 MW |
79 | struct vme_bus_error { |
80 | struct list_head list; | |
81 | unsigned long long address; | |
82 | u32 attributes; | |
83 | }; | |
84 | ||
85 | struct vme_callback { | |
86 | void (*func)(int, int, void*); | |
87 | void *priv_data; | |
88 | }; | |
89 | ||
90 | struct vme_irq { | |
91 | int count; | |
92 | struct vme_callback callback[255]; | |
93 | }; | |
94 | ||
95 | /* Allow 16 characters for name (including null character) */ | |
96 | #define VMENAMSIZ 16 | |
97 | ||
98 | /* This structure stores all the information about one bridge | |
99 | * The structure should be dynamically allocated by the driver and one instance | |
100 | * of the structure should be present for each VME chip present in the system. | |
101 | * | |
102 | * Currently we assume that all chips are PCI-based | |
103 | */ | |
104 | struct vme_bridge { | |
ead1f3e3 | 105 | char name[VMENAMSIZ]; |
a17a75e2 MW |
106 | int num; |
107 | struct list_head master_resources; | |
108 | struct list_head slave_resources; | |
109 | struct list_head dma_resources; | |
42fb5031 | 110 | struct list_head lm_resources; |
a17a75e2 MW |
111 | |
112 | struct list_head vme_errors; /* List for errors generated on VME */ | |
113 | ||
114 | /* Bridge Info - XXX Move to private structure? */ | |
115 | struct device *parent; /* Generic device struct (pdev->dev for PCI) */ | |
29848ac9 | 116 | void *driver_priv; /* Private pointer for the bridge driver */ |
a17a75e2 MW |
117 | |
118 | struct device dev[VME_SLOTS_MAX]; /* Device registered with | |
119 | * device model on VME bus | |
120 | */ | |
121 | ||
122 | /* Interrupt callbacks */ | |
123 | struct vme_irq irq[7]; | |
c813f592 MW |
124 | /* Locking for VME irq callback configuration */ |
125 | struct mutex irq_mtx; | |
a17a75e2 MW |
126 | |
127 | /* Slave Functions */ | |
128 | int (*slave_get) (struct vme_slave_resource *, int *, | |
129 | unsigned long long *, unsigned long long *, dma_addr_t *, | |
130 | vme_address_t *, vme_cycle_t *); | |
131 | int (*slave_set) (struct vme_slave_resource *, int, unsigned long long, | |
132 | unsigned long long, dma_addr_t, vme_address_t, vme_cycle_t); | |
133 | ||
134 | /* Master Functions */ | |
135 | int (*master_get) (struct vme_master_resource *, int *, | |
136 | unsigned long long *, unsigned long long *, vme_address_t *, | |
137 | vme_cycle_t *, vme_width_t *); | |
138 | int (*master_set) (struct vme_master_resource *, int, | |
139 | unsigned long long, unsigned long long, vme_address_t, | |
140 | vme_cycle_t, vme_width_t); | |
141 | ssize_t (*master_read) (struct vme_master_resource *, void *, size_t, | |
142 | loff_t); | |
143 | ssize_t (*master_write) (struct vme_master_resource *, void *, size_t, | |
144 | loff_t); | |
145 | unsigned int (*master_rmw) (struct vme_master_resource *, unsigned int, | |
146 | unsigned int, unsigned int, loff_t); | |
147 | ||
148 | /* DMA Functions */ | |
149 | int (*dma_list_add) (struct vme_dma_list *, struct vme_dma_attr *, | |
150 | struct vme_dma_attr *, size_t); | |
151 | int (*dma_list_exec) (struct vme_dma_list *); | |
152 | int (*dma_list_empty) (struct vme_dma_list *); | |
153 | ||
154 | /* Interrupt Functions */ | |
29848ac9 MW |
155 | void (*irq_set) (struct vme_bridge *, int, int, int); |
156 | int (*irq_generate) (struct vme_bridge *, int, int); | |
a17a75e2 MW |
157 | |
158 | /* Location monitor functions */ | |
42fb5031 MW |
159 | int (*lm_set) (struct vme_lm_resource *, unsigned long long, |
160 | vme_address_t, vme_cycle_t); | |
161 | int (*lm_get) (struct vme_lm_resource *, unsigned long long *, | |
162 | vme_address_t *, vme_cycle_t *); | |
163 | int (*lm_attach) (struct vme_lm_resource *, int, void (*callback)(int)); | |
164 | int (*lm_detach) (struct vme_lm_resource *, int); | |
a17a75e2 MW |
165 | |
166 | /* CR/CSR space functions */ | |
29848ac9 | 167 | int (*slot_get) (struct vme_bridge *); |
a17a75e2 MW |
168 | }; |
169 | ||
c813f592 MW |
170 | void vme_irq_handler(struct vme_bridge *, int, int); |
171 | ||
ead1f3e3 MW |
172 | int vme_register_bridge(struct vme_bridge *); |
173 | void vme_unregister_bridge(struct vme_bridge *); | |
a17a75e2 MW |
174 | |
175 | #endif /* _VME_BRIDGE_H_ */ |