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13#ifndef _UIO_DRIVER_H_
14#define _UIO_DRIVER_H_
15
16#include <linux/device.h>
17#include <linux/fs.h>
18#include <linux/interrupt.h>
19
20struct module;
21struct uio_map;
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37struct uio_mem {
38 const char *name;
39 phys_addr_t addr;
40 unsigned long offs;
41 resource_size_t size;
42 int memtype;
43 void __iomem *internal_addr;
44 struct uio_map *map;
45};
46
47#define MAX_UIO_MAPS 5
48
49struct uio_portio;
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59struct uio_port {
60 const char *name;
61 unsigned long start;
62 unsigned long size;
63 int porttype;
64 struct uio_portio *portio;
65};
66
67#define MAX_UIO_PORT_REGIONS 5
68
69struct uio_device {
70 struct module *owner;
71 struct device dev;
72 int minor;
73 atomic_t event;
74 struct fasync_struct *async_queue;
75 wait_queue_head_t wait;
76 struct uio_info *info;
77 struct mutex info_lock;
78 struct kobject *map_dir;
79 struct kobject *portio_dir;
80};
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98struct uio_info {
99 struct uio_device *uio_dev;
100 const char *name;
101 const char *version;
102 struct uio_mem mem[MAX_UIO_MAPS];
103 struct uio_port port[MAX_UIO_PORT_REGIONS];
104 long irq;
105 unsigned long irq_flags;
106 void *priv;
107 irqreturn_t (*handler)(int irq, struct uio_info *dev_info);
108 int (*mmap)(struct uio_info *info, struct vm_area_struct *vma);
109 int (*open)(struct uio_info *info, struct inode *inode);
110 int (*release)(struct uio_info *info, struct inode *inode);
111 int (*irqcontrol)(struct uio_info *info, s32 irq_on);
112};
113
114extern int __must_check
115 __uio_register_device(struct module *owner,
116 struct device *parent,
117 struct uio_info *info);
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128#define uio_register_device(parent, info) \
129 __uio_register_device(THIS_MODULE, parent, info)
130
131extern void uio_unregister_device(struct uio_info *info);
132extern void uio_event_notify(struct uio_info *info);
133
134extern int __must_check
135 __devm_uio_register_device(struct module *owner,
136 struct device *parent,
137 struct uio_info *info);
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148#define devm_uio_register_device(parent, info) \
149 __devm_uio_register_device(THIS_MODULE, parent, info)
150
151
152#define UIO_IRQ_CUSTOM -1
153#define UIO_IRQ_NONE 0
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155
156#define UIO_MEM_NONE 0
157#define UIO_MEM_PHYS 1
158#define UIO_MEM_LOGICAL 2
159#define UIO_MEM_VIRTUAL 3
160#define UIO_MEM_IOVA 4
161
162
163#define UIO_PORT_NONE 0
164#define UIO_PORT_X86 1
165#define UIO_PORT_GPIO 2
166#define UIO_PORT_OTHER 3
167
168#endif
169