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8#ifndef _SERIO_H
9#define _SERIO_H
10
11
12#include <linux/types.h>
13#include <linux/interrupt.h>
14#include <linux/list.h>
15#include <linux/spinlock.h>
16#include <linux/mutex.h>
17#include <linux/device.h>
18#include <linux/mod_devicetable.h>
19#include <uapi/linux/serio.h>
20
21extern struct bus_type serio_bus;
22
23struct serio {
24 void *port_data;
25
26 char name[32];
27 char phys[32];
28 char firmware_id[128];
29
30 bool manual_bind;
31
32 struct serio_device_id id;
33
34 spinlock_t lock;
35
36 int (*write)(struct serio *, unsigned char);
37 int (*open)(struct serio *);
38 void (*close)(struct serio *);
39 int (*start)(struct serio *);
40 void (*stop)(struct serio *);
41
42 struct serio *parent;
43 struct list_head child_node;
44 struct list_head children;
45 unsigned int depth;
46
47 struct serio_driver *drv;
48 struct mutex drv_mutex;
49
50 struct device dev;
51
52 struct list_head node;
53};
54#define to_serio_port(d) container_of(d, struct serio, dev)
55
56struct serio_driver {
57 const char *description;
58
59 const struct serio_device_id *id_table;
60 bool manual_bind;
61
62 void (*write_wakeup)(struct serio *);
63 irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int);
64 int (*connect)(struct serio *, struct serio_driver *drv);
65 int (*reconnect)(struct serio *);
66 void (*disconnect)(struct serio *);
67 void (*cleanup)(struct serio *);
68
69 struct device_driver driver;
70};
71#define to_serio_driver(d) container_of(d, struct serio_driver, driver)
72
73int serio_open(struct serio *serio, struct serio_driver *drv);
74void serio_close(struct serio *serio);
75void serio_rescan(struct serio *serio);
76void serio_reconnect(struct serio *serio);
77irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags);
78
79void __serio_register_port(struct serio *serio, struct module *owner);
80
81
82#define serio_register_port(serio) \
83 __serio_register_port(serio, THIS_MODULE)
84
85void serio_unregister_port(struct serio *serio);
86void serio_unregister_child_port(struct serio *serio);
87
88int __must_check __serio_register_driver(struct serio_driver *drv,
89 struct module *owner, const char *mod_name);
90
91
92#define serio_register_driver(drv) \
93 __serio_register_driver(drv, THIS_MODULE, KBUILD_MODNAME)
94
95void serio_unregister_driver(struct serio_driver *drv);
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105
106#define module_serio_driver(__serio_driver) \
107 module_driver(__serio_driver, serio_register_driver, \
108 serio_unregister_driver)
109
110static inline int serio_write(struct serio *serio, unsigned char data)
111{
112 if (serio->write)
113 return serio->write(serio, data);
114 else
115 return -1;
116}
117
118static inline void serio_drv_write_wakeup(struct serio *serio)
119{
120 if (serio->drv && serio->drv->write_wakeup)
121 serio->drv->write_wakeup(serio);
122}
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127
128static inline void *serio_get_drvdata(struct serio *serio)
129{
130 return dev_get_drvdata(&serio->dev);
131}
132
133static inline void serio_set_drvdata(struct serio *serio, void *data)
134{
135 dev_set_drvdata(&serio->dev, data);
136}
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141
142static inline void serio_pause_rx(struct serio *serio)
143{
144 spin_lock_irq(&serio->lock);
145}
146
147static inline void serio_continue_rx(struct serio *serio)
148{
149 spin_unlock_irq(&serio->lock);
150}
151
152#endif
153