1 #ifndef _SERIO_H
2 #define _SERIO_H
3
4 /*
5 * Copyright (C) 1999-2002 Vojtech Pavlik
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
10 */
11
12 #include <linux/ioctl.h>
13
14 #define SPIOCSTYPE _IOW('q', 0x01, unsigned long)
15
16 #ifdef __KERNEL__
17
18 #include <linux/types.h>
19 #include <linux/interrupt.h>
20 #include <linux/list.h>
21 #include <linux/spinlock.h>
22 #include <linux/mutex.h>
23 #include <linux/device.h>
24 #include <linux/mod_devicetable.h>
25
26 struct serio {
27 void *port_data;
28
29 char name[32];
30 char phys[32];
31
32 bool manual_bind;
33 bool registered; /* port has been fully registered with driver core */
34 bool suspended; /* port is suspended */
35
36
37 struct serio_device_id id;
38
39 spinlock_t lock; /* protects critical sections from port's interrupt handler */
40
41 int (*write)(struct serio *, unsigned char);
42 int (*open)(struct serio *);
43 void (*close)(struct serio *);
44 int (*start)(struct serio *);
45 void (*stop)(struct serio *);
46
47 struct serio *parent, *child;
48 unsigned int depth; /* level of nesting in serio hierarchy */
49
50 struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */
51 struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */
52
53 struct device dev;
54
55 struct list_head node;
56 };
57 #define to_serio_port(d) container_of(d, struct serio, dev)
58
59 struct serio_driver {
60 void *private;
61 char *description;
62
63 struct serio_device_id *id_table;
64 bool manual_bind;
65
66 void (*write_wakeup)(struct serio *);
67 irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int);
68 int (*connect)(struct serio *, struct serio_driver *drv);
69 int (*reconnect)(struct serio *);
70 void (*disconnect)(struct serio *);
71 void (*cleanup)(struct serio *);
72
73 struct device_driver driver;
74 };
75 #define to_serio_driver(d) container_of(d, struct serio_driver, driver)
76
77 int serio_open(struct serio *serio, struct serio_driver *drv);
78 void serio_close(struct serio *serio);
79 void serio_rescan(struct serio *serio);
80 void serio_reconnect(struct serio *serio);
81 irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags);
82
83 void __serio_register_port(struct serio *serio, struct module *owner);
84 static inline void serio_register_port(struct serio *serio)
85 {
86 __serio_register_port(serio, THIS_MODULE);
87 }
88
89 void serio_unregister_port(struct serio *serio);
90 void serio_unregister_child_port(struct serio *serio);
91
92 int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name);
93 static inline int __must_check serio_register_driver(struct serio_driver *drv)
94 {
95 return __serio_register_driver(drv, THIS_MODULE, KBUILD_MODNAME);
96 }
97 void serio_unregister_driver(struct serio_driver *drv);
98
99 static inline int serio_write(struct serio *serio, unsigned char data)
100 {
101 if (serio->write)
102 return serio->write(serio, data);
103 else
104 return -1;
105 }
106
107 static inline void serio_drv_write_wakeup(struct serio *serio)
108 {
109 if (serio->drv && serio->drv->write_wakeup)
110 serio->drv->write_wakeup(serio);
111 }
112
113 /*
114 * Use the following functions to manipulate serio's per-port
115 * driver-specific data.
116 */
117 static inline void *serio_get_drvdata(struct serio *serio)
118 {
119 return dev_get_drvdata(&serio->dev);
120 }
121
122 static inline void serio_set_drvdata(struct serio *serio, void *data)
123 {
124 dev_set_drvdata(&serio->dev, data);
125 }
126
127 /*
128 * Use the following functions to protect critical sections in
129 * driver code from port's interrupt handler
130 */
131 static inline void serio_pause_rx(struct serio *serio)
132 {
133 spin_lock_irq(&serio->lock);
134 }
135
136 static inline void serio_continue_rx(struct serio *serio)
137 {
138 spin_unlock_irq(&serio->lock);
139 }
140
141 /*
142 * Use the following functions to pin serio's driver in process context
143 */
144 static inline int serio_pin_driver(struct serio *serio)
145 {
146 return mutex_lock_interruptible(&serio->drv_mutex);
147 }
148
149 static inline void serio_pin_driver_uninterruptible(struct serio *serio)
150 {
151 mutex_lock(&serio->drv_mutex);
152 }
153
154 static inline void serio_unpin_driver(struct serio *serio)
155 {
156 mutex_unlock(&serio->drv_mutex);
157 }
158
159
160 #endif
161
162 /*
163 * bit masks for use in "interrupt" flags (3rd argument)
164 */
165 #define SERIO_TIMEOUT 1
166 #define SERIO_PARITY 2
167 #define SERIO_FRAME 4
168
169 /*
170 * Serio types
171 */
172 #define SERIO_XT 0x00
173 #define SERIO_8042 0x01
174 #define SERIO_RS232 0x02
175 #define SERIO_HIL_MLC 0x03
176 #define SERIO_PS_PSTHRU 0x05
177 #define SERIO_8042_XL 0x06
178
179 /*
180 * Serio protocols
181 */
182 #define SERIO_UNKNOWN 0x00
183 #define SERIO_MSC 0x01
184 #define SERIO_SUN 0x02
185 #define SERIO_MS 0x03
186 #define SERIO_MP 0x04
187 #define SERIO_MZ 0x05
188 #define SERIO_MZP 0x06
189 #define SERIO_MZPP 0x07
190 #define SERIO_VSXXXAA 0x08
191 #define SERIO_SUNKBD 0x10
192 #define SERIO_WARRIOR 0x18
193 #define SERIO_SPACEORB 0x19
194 #define SERIO_MAGELLAN 0x1a
195 #define SERIO_SPACEBALL 0x1b
196 #define SERIO_GUNZE 0x1c
197 #define SERIO_IFORCE 0x1d
198 #define SERIO_STINGER 0x1e
199 #define SERIO_NEWTON 0x1f
200 #define SERIO_STOWAWAY 0x20
201 #define SERIO_H3600 0x21
202 #define SERIO_PS2SER 0x22
203 #define SERIO_TWIDKBD 0x23
204 #define SERIO_TWIDJOY 0x24
205 #define SERIO_HIL 0x25
206 #define SERIO_SNES232 0x26
207 #define SERIO_SEMTECH 0x27
208 #define SERIO_LKKBD 0x28
209 #define SERIO_ELO 0x29
210 #define SERIO_MICROTOUCH 0x30
211 #define SERIO_PENMOUNT 0x31
212 #define SERIO_TOUCHRIGHT 0x32
213 #define SERIO_TOUCHWIN 0x33
214 #define SERIO_TAOSEVM 0x34
215 #define SERIO_FUJITSU 0x35
216 #define SERIO_ZHENHUA 0x36
217 #define SERIO_INEXIO 0x37
218 #define SERIO_TOUCHIT213 0x38
219 #define SERIO_W8001 0x39
220
221 #endif
222
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