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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 | ||
18 | #include <linux/interrupt.h> | |
19 | #include <linux/list.h> | |
20 | #include <linux/spinlock.h> | |
21 | #include <linux/device.h> | |
22 | #include <linux/mod_devicetable.h> | |
23 | ||
24 | struct serio { | |
25 | void *port_data; | |
26 | ||
27 | char name[32]; | |
28 | char phys[32]; | |
29 | ||
30 | unsigned int manual_bind; | |
31 | ||
32 | struct serio_device_id id; | |
33 | ||
34 | spinlock_t lock; /* protects critical sections from port's interrupt handler */ | |
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, *child; | |
43 | ||
44 | struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */ | |
45 | struct semaphore drv_sem; /* protects serio->drv so attributes can pin driver */ | |
46 | ||
47 | struct device dev; | |
48 | unsigned int registered; /* port has been fully registered with driver core */ | |
49 | ||
50 | struct list_head node; | |
51 | }; | |
52 | #define to_serio_port(d) container_of(d, struct serio, dev) | |
53 | ||
54 | struct serio_driver { | |
55 | void *private; | |
56 | char *description; | |
57 | ||
58 | struct serio_device_id *id_table; | |
59 | unsigned int manual_bind; | |
60 | ||
61 | void (*write_wakeup)(struct serio *); | |
62 | irqreturn_t (*interrupt)(struct serio *, unsigned char, | |
63 | unsigned int, struct pt_regs *); | |
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 | ||
73 | int serio_open(struct serio *serio, struct serio_driver *drv); | |
74 | void serio_close(struct serio *serio); | |
75 | void serio_rescan(struct serio *serio); | |
76 | void serio_reconnect(struct serio *serio); | |
77 | irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags, struct pt_regs *regs); | |
78 | ||
79 | void __serio_register_port(struct serio *serio, struct module *owner); | |
80 | static inline void serio_register_port(struct serio *serio) | |
81 | { | |
82 | __serio_register_port(serio, THIS_MODULE); | |
83 | } | |
84 | ||
85 | void serio_unregister_port(struct serio *serio); | |
86 | void __serio_unregister_port_delayed(struct serio *serio, struct module *owner); | |
87 | static inline void serio_unregister_port_delayed(struct serio *serio) | |
88 | { | |
89 | __serio_unregister_port_delayed(serio, THIS_MODULE); | |
90 | } | |
91 | ||
92 | void __serio_register_driver(struct serio_driver *drv, struct module *owner); | |
93 | static inline void serio_register_driver(struct serio_driver *drv) | |
94 | { | |
95 | __serio_register_driver(drv, THIS_MODULE); | |
96 | } | |
97 | ||
98 | void serio_unregister_driver(struct serio_driver *drv); | |
99 | ||
100 | static inline int serio_write(struct serio *serio, unsigned char data) | |
101 | { | |
102 | if (serio->write) | |
103 | return serio->write(serio, data); | |
104 | else | |
105 | return -1; | |
106 | } | |
107 | ||
108 | static inline void serio_drv_write_wakeup(struct serio *serio) | |
109 | { | |
110 | if (serio->drv && serio->drv->write_wakeup) | |
111 | serio->drv->write_wakeup(serio); | |
112 | } | |
113 | ||
114 | static inline void serio_cleanup(struct serio *serio) | |
115 | { | |
116 | if (serio->drv && serio->drv->cleanup) | |
117 | serio->drv->cleanup(serio); | |
118 | } | |
119 | ||
120 | /* | |
121 | * Use the following fucntions to manipulate serio's per-port | |
122 | * driver-specific data. | |
123 | */ | |
124 | static inline void *serio_get_drvdata(struct serio *serio) | |
125 | { | |
126 | return dev_get_drvdata(&serio->dev); | |
127 | } | |
128 | ||
129 | static inline void serio_set_drvdata(struct serio *serio, void *data) | |
130 | { | |
131 | dev_set_drvdata(&serio->dev, data); | |
132 | } | |
133 | ||
134 | /* | |
135 | * Use the following fucntions to protect critical sections in | |
136 | * driver code from port's interrupt handler | |
137 | */ | |
138 | static inline void serio_pause_rx(struct serio *serio) | |
139 | { | |
140 | spin_lock_irq(&serio->lock); | |
141 | } | |
142 | ||
143 | static inline void serio_continue_rx(struct serio *serio) | |
144 | { | |
145 | spin_unlock_irq(&serio->lock); | |
146 | } | |
147 | ||
148 | /* | |
149 | * Use the following fucntions to pin serio's driver in process context | |
150 | */ | |
151 | static inline int serio_pin_driver(struct serio *serio) | |
152 | { | |
153 | return down_interruptible(&serio->drv_sem); | |
154 | } | |
155 | ||
156 | static inline void serio_unpin_driver(struct serio *serio) | |
157 | { | |
158 | up(&serio->drv_sem); | |
159 | } | |
160 | ||
161 | ||
162 | #endif | |
163 | ||
164 | /* | |
165 | * bit masks for use in "interrupt" flags (3rd argument) | |
166 | */ | |
167 | #define SERIO_TIMEOUT 1 | |
168 | #define SERIO_PARITY 2 | |
169 | #define SERIO_FRAME 4 | |
170 | ||
171 | /* | |
172 | * Serio types | |
173 | */ | |
174 | #define SERIO_XT 0x00 | |
175 | #define SERIO_8042 0x01 | |
176 | #define SERIO_RS232 0x02 | |
177 | #define SERIO_HIL_MLC 0x03 | |
178 | #define SERIO_PS_PSTHRU 0x05 | |
179 | #define SERIO_8042_XL 0x06 | |
180 | ||
181 | /* | |
182 | * Serio types | |
183 | */ | |
184 | #define SERIO_UNKNOWN 0x00 | |
185 | #define SERIO_MSC 0x01 | |
186 | #define SERIO_SUN 0x02 | |
187 | #define SERIO_MS 0x03 | |
188 | #define SERIO_MP 0x04 | |
189 | #define SERIO_MZ 0x05 | |
190 | #define SERIO_MZP 0x06 | |
191 | #define SERIO_MZPP 0x07 | |
192 | #define SERIO_VSXXXAA 0x08 | |
193 | #define SERIO_SUNKBD 0x10 | |
194 | #define SERIO_WARRIOR 0x18 | |
195 | #define SERIO_SPACEORB 0x19 | |
196 | #define SERIO_MAGELLAN 0x1a | |
197 | #define SERIO_SPACEBALL 0x1b | |
198 | #define SERIO_GUNZE 0x1c | |
199 | #define SERIO_IFORCE 0x1d | |
200 | #define SERIO_STINGER 0x1e | |
201 | #define SERIO_NEWTON 0x1f | |
202 | #define SERIO_STOWAWAY 0x20 | |
203 | #define SERIO_H3600 0x21 | |
204 | #define SERIO_PS2SER 0x22 | |
205 | #define SERIO_TWIDKBD 0x23 | |
206 | #define SERIO_TWIDJOY 0x24 | |
207 | #define SERIO_HIL 0x25 | |
208 | #define SERIO_SNES232 0x26 | |
209 | #define SERIO_SEMTECH 0x27 | |
210 | #define SERIO_LKKBD 0x28 | |
211 | #define SERIO_ELO 0x29 | |
212 | #define SERIO_MICROTOUCH 0x30 | |
213 | ||
214 | #endif |