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1da177e4 LT |
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 | ||
7e044e05 | 18 | #include <linux/types.h> |
1da177e4 LT |
19 | #include <linux/interrupt.h> |
20 | #include <linux/list.h> | |
21 | #include <linux/spinlock.h> | |
c4e32e9f | 22 | #include <linux/mutex.h> |
1da177e4 LT |
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 | ||
7e044e05 DT |
32 | bool manual_bind; |
33 | bool registered; /* port has been fully registered with driver core */ | |
1da177e4 LT |
34 | |
35 | struct serio_device_id id; | |
36 | ||
37 | spinlock_t lock; /* protects critical sections from port's interrupt handler */ | |
38 | ||
39 | int (*write)(struct serio *, unsigned char); | |
40 | int (*open)(struct serio *); | |
41 | void (*close)(struct serio *); | |
42 | int (*start)(struct serio *); | |
43 | void (*stop)(struct serio *); | |
44 | ||
45 | struct serio *parent, *child; | |
88aa0103 | 46 | unsigned int depth; /* level of nesting in serio hierarchy */ |
1da177e4 LT |
47 | |
48 | struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */ | |
c4e32e9f | 49 | struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */ |
1da177e4 LT |
50 | |
51 | struct device dev; | |
1da177e4 LT |
52 | |
53 | struct list_head node; | |
54 | }; | |
55 | #define to_serio_port(d) container_of(d, struct serio, dev) | |
56 | ||
57 | struct serio_driver { | |
58 | void *private; | |
59 | char *description; | |
60 | ||
61 | struct serio_device_id *id_table; | |
7e044e05 | 62 | bool manual_bind; |
1da177e4 LT |
63 | |
64 | void (*write_wakeup)(struct serio *); | |
7d12e780 | 65 | irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int); |
1da177e4 LT |
66 | int (*connect)(struct serio *, struct serio_driver *drv); |
67 | int (*reconnect)(struct serio *); | |
68 | void (*disconnect)(struct serio *); | |
69 | void (*cleanup)(struct serio *); | |
70 | ||
71 | struct device_driver driver; | |
72 | }; | |
73 | #define to_serio_driver(d) container_of(d, struct serio_driver, driver) | |
74 | ||
75 | int serio_open(struct serio *serio, struct serio_driver *drv); | |
76 | void serio_close(struct serio *serio); | |
77 | void serio_rescan(struct serio *serio); | |
78 | void serio_reconnect(struct serio *serio); | |
7d12e780 | 79 | irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags); |
1da177e4 LT |
80 | |
81 | void __serio_register_port(struct serio *serio, struct module *owner); | |
82 | static inline void serio_register_port(struct serio *serio) | |
83 | { | |
84 | __serio_register_port(serio, THIS_MODULE); | |
85 | } | |
86 | ||
87 | void serio_unregister_port(struct serio *serio); | |
dbf4ccd6 | 88 | void serio_unregister_child_port(struct serio *serio); |
1da177e4 | 89 | |
4b315627 | 90 | int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name); |
a822bea7 | 91 | static inline int __must_check serio_register_driver(struct serio_driver *drv) |
4b315627 GKH |
92 | { |
93 | return __serio_register_driver(drv, THIS_MODULE, KBUILD_MODNAME); | |
94 | } | |
1da177e4 LT |
95 | void serio_unregister_driver(struct serio_driver *drv); |
96 | ||
97 | static inline int serio_write(struct serio *serio, unsigned char data) | |
98 | { | |
99 | if (serio->write) | |
100 | return serio->write(serio, data); | |
101 | else | |
102 | return -1; | |
103 | } | |
104 | ||
105 | static inline void serio_drv_write_wakeup(struct serio *serio) | |
106 | { | |
107 | if (serio->drv && serio->drv->write_wakeup) | |
108 | serio->drv->write_wakeup(serio); | |
109 | } | |
110 | ||
1da177e4 | 111 | /* |
0b28002f | 112 | * Use the following functions to manipulate serio's per-port |
1da177e4 LT |
113 | * driver-specific data. |
114 | */ | |
115 | static inline void *serio_get_drvdata(struct serio *serio) | |
116 | { | |
117 | return dev_get_drvdata(&serio->dev); | |
118 | } | |
119 | ||
120 | static inline void serio_set_drvdata(struct serio *serio, void *data) | |
121 | { | |
122 | dev_set_drvdata(&serio->dev, data); | |
123 | } | |
124 | ||
125 | /* | |
0b28002f | 126 | * Use the following functions to protect critical sections in |
1da177e4 LT |
127 | * driver code from port's interrupt handler |
128 | */ | |
129 | static inline void serio_pause_rx(struct serio *serio) | |
130 | { | |
131 | spin_lock_irq(&serio->lock); | |
132 | } | |
133 | ||
134 | static inline void serio_continue_rx(struct serio *serio) | |
135 | { | |
136 | spin_unlock_irq(&serio->lock); | |
137 | } | |
138 | ||
139 | /* | |
0b28002f | 140 | * Use the following functions to pin serio's driver in process context |
1da177e4 LT |
141 | */ |
142 | static inline int serio_pin_driver(struct serio *serio) | |
143 | { | |
c4e32e9f | 144 | return mutex_lock_interruptible(&serio->drv_mutex); |
1da177e4 LT |
145 | } |
146 | ||
dbf4ccd6 DT |
147 | static inline void serio_pin_driver_uninterruptible(struct serio *serio) |
148 | { | |
c4e32e9f | 149 | mutex_lock(&serio->drv_mutex); |
dbf4ccd6 DT |
150 | } |
151 | ||
1da177e4 LT |
152 | static inline void serio_unpin_driver(struct serio *serio) |
153 | { | |
c4e32e9f | 154 | mutex_unlock(&serio->drv_mutex); |
1da177e4 LT |
155 | } |
156 | ||
157 | ||
158 | #endif | |
159 | ||
160 | /* | |
161 | * bit masks for use in "interrupt" flags (3rd argument) | |
162 | */ | |
163 | #define SERIO_TIMEOUT 1 | |
164 | #define SERIO_PARITY 2 | |
165 | #define SERIO_FRAME 4 | |
166 | ||
167 | /* | |
168 | * Serio types | |
169 | */ | |
170 | #define SERIO_XT 0x00 | |
171 | #define SERIO_8042 0x01 | |
172 | #define SERIO_RS232 0x02 | |
173 | #define SERIO_HIL_MLC 0x03 | |
174 | #define SERIO_PS_PSTHRU 0x05 | |
175 | #define SERIO_8042_XL 0x06 | |
176 | ||
177 | /* | |
f3d1eb19 | 178 | * Serio protocols |
1da177e4 LT |
179 | */ |
180 | #define SERIO_UNKNOWN 0x00 | |
181 | #define SERIO_MSC 0x01 | |
182 | #define SERIO_SUN 0x02 | |
183 | #define SERIO_MS 0x03 | |
184 | #define SERIO_MP 0x04 | |
185 | #define SERIO_MZ 0x05 | |
186 | #define SERIO_MZP 0x06 | |
187 | #define SERIO_MZPP 0x07 | |
188 | #define SERIO_VSXXXAA 0x08 | |
189 | #define SERIO_SUNKBD 0x10 | |
190 | #define SERIO_WARRIOR 0x18 | |
191 | #define SERIO_SPACEORB 0x19 | |
192 | #define SERIO_MAGELLAN 0x1a | |
193 | #define SERIO_SPACEBALL 0x1b | |
194 | #define SERIO_GUNZE 0x1c | |
195 | #define SERIO_IFORCE 0x1d | |
196 | #define SERIO_STINGER 0x1e | |
197 | #define SERIO_NEWTON 0x1f | |
198 | #define SERIO_STOWAWAY 0x20 | |
199 | #define SERIO_H3600 0x21 | |
200 | #define SERIO_PS2SER 0x22 | |
201 | #define SERIO_TWIDKBD 0x23 | |
202 | #define SERIO_TWIDJOY 0x24 | |
203 | #define SERIO_HIL 0x25 | |
204 | #define SERIO_SNES232 0x26 | |
205 | #define SERIO_SEMTECH 0x27 | |
206 | #define SERIO_LKKBD 0x28 | |
207 | #define SERIO_ELO 0x29 | |
208 | #define SERIO_MICROTOUCH 0x30 | |
ee479999 | 209 | #define SERIO_PENMOUNT 0x31 |
4003dff4 | 210 | #define SERIO_TOUCHRIGHT 0x32 |
11ea3173 | 211 | #define SERIO_TOUCHWIN 0x33 |
b9cdad74 | 212 | #define SERIO_TAOSEVM 0x34 |
85f202d5 | 213 | #define SERIO_FUJITSU 0x35 |
3e24e2b5 | 214 | #define SERIO_ZHENHUA 0x36 |
3cadd2d9 | 215 | #define SERIO_INEXIO 0x37 |
ab96ddec | 216 | #define SERIO_TOUCHIT213 0x38 |
3eb1aa43 | 217 | #define SERIO_W8001 0x39 |
1da177e4 LT |
218 | |
219 | #endif |