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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-26 15:34:58 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-26 15:34:58 -0400
commitdb3b9e990e75573402cda22faf933760f076c033 (patch)
tree4e742e97f7bd71adc61ce23938e361d80b61a45d /drivers/vme/vme_bridge.h
parent8176df8e95df4c867457076190cfb18f2d7ff18c (diff)
Staging: VME: move VME drivers out of staging
This moves the VME core, VME board drivers, and VME bridge drivers out of the drivers/staging/vme/ area to drivers/vme/. The VME device drivers have not moved out yet due to some API questions they are still working through, that should happen soon, hopefully. Cc: Martyn Welch <martyn.welch@ge.com> Cc: Manohar Vanga <manohar.vanga@cern.ch> Cc: Vincent Bossier <vincent.bossier@gmail.com> Cc: "Emilio G. Cota" <cota@braap.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vme/vme_bridge.h')
-rw-r--r--drivers/vme/vme_bridge.h174
1 files changed, 174 insertions, 0 deletions
diff --git a/drivers/vme/vme_bridge.h b/drivers/vme/vme_bridge.h
new file mode 100644
index 000000000000..934949abd745
--- /dev/null
+++ b/drivers/vme/vme_bridge.h
@@ -0,0 +1,174 @@
1#ifndef _VME_BRIDGE_H_
2#define _VME_BRIDGE_H_
3
4#define VME_CRCSR_BUF_SIZE (508*1024)
5/*
6 * Resource structures
7 */
8struct 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
25struct 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
35struct vme_dma_pattern {
36 u32 pattern;
37 u32 type;
38};
39
40struct vme_dma_pci {
41 dma_addr_t address;
42};
43
44struct vme_dma_vme {
45 unsigned long long address;
46 u32 aspace;
47 u32 cycle;
48 u32 dwidth;
49};
50
51struct 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
58struct 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
69struct 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
78struct vme_bus_error {
79 struct list_head list;
80 unsigned long long address;
81 u32 attributes;
82};
83
84struct vme_callback {
85 void (*func)(int, int, void*);
86 void *priv_data;
87};
88
89struct 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 */
101struct 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
169void vme_irq_handler(struct vme_bridge *, int, int);
170
171int vme_register_bridge(struct vme_bridge *);
172void vme_unregister_bridge(struct vme_bridge *);
173
174#endif /* _VME_BRIDGE_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-23 23:36:50 -0500