Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
24struct 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
54struct 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
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, struct pt_regs *regs);
78
79void __serio_register_port(struct serio *serio, struct module *owner);
80static inline void serio_register_port(struct serio *serio)
81{
82 __serio_register_port(serio, THIS_MODULE);
83}
84
85void serio_unregister_port(struct serio *serio);
86void __serio_unregister_port_delayed(struct serio *serio, struct module *owner);
87static inline void serio_unregister_port_delayed(struct serio *serio)
88{
89 __serio_unregister_port_delayed(serio, THIS_MODULE);
90}
91
92void __serio_register_driver(struct serio_driver *drv, struct module *owner);
93static inline void serio_register_driver(struct serio_driver *drv)
94{
95 __serio_register_driver(drv, THIS_MODULE);
96}
97
98void serio_unregister_driver(struct serio_driver *drv);
99
100static 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
108static 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
114static 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 */
124static inline void *serio_get_drvdata(struct serio *serio)
125{
126 return dev_get_drvdata(&serio->dev);
127}
128
129static 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 */
138static inline void serio_pause_rx(struct serio *serio)
139{
140 spin_lock_irq(&serio->lock);
141}
142
143static 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 */
151static inline int serio_pin_driver(struct serio *serio)
152{
153 return down_interruptible(&serio->drv_sem);
154}
155
156static 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