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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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>
Arjan van de Venc4e32e92006-02-19 00:21:55 -050021#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <linux/device.h>
23#include <linux/mod_devicetable.h>
24
25struct serio {
26 void *port_data;
27
28 char name[32];
29 char phys[32];
30
31 unsigned int manual_bind;
32
33 struct serio_device_id id;
34
35 spinlock_t lock; /* protects critical sections from port's interrupt handler */
36
37 int (*write)(struct serio *, unsigned char);
38 int (*open)(struct serio *);
39 void (*close)(struct serio *);
40 int (*start)(struct serio *);
41 void (*stop)(struct serio *);
42
43 struct serio *parent, *child;
Jiri Kosina88aa0102006-10-11 01:45:31 -040044 unsigned int depth; /* level of nesting in serio hierarchy */
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
46 struct serio_driver *drv; /* accessed from interrupt, must be protected by serio->lock and serio->sem */
Arjan van de Venc4e32e92006-02-19 00:21:55 -050047 struct mutex drv_mutex; /* protects serio->drv so attributes can pin driver */
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49 struct device dev;
50 unsigned int registered; /* port has been fully registered with driver core */
51
52 struct list_head node;
53};
54#define to_serio_port(d) container_of(d, struct serio, dev)
55
56struct serio_driver {
57 void *private;
58 char *description;
59
60 struct serio_device_id *id_table;
61 unsigned int manual_bind;
62
63 void (*write_wakeup)(struct serio *);
David Howells7d12e782006-10-05 14:55:46 +010064 irqreturn_t (*interrupt)(struct serio *, unsigned char, unsigned int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 int (*connect)(struct serio *, struct serio_driver *drv);
66 int (*reconnect)(struct serio *);
67 void (*disconnect)(struct serio *);
68 void (*cleanup)(struct serio *);
69
70 struct device_driver driver;
71};
72#define to_serio_driver(d) container_of(d, struct serio_driver, driver)
73
74int serio_open(struct serio *serio, struct serio_driver *drv);
75void serio_close(struct serio *serio);
76void serio_rescan(struct serio *serio);
77void serio_reconnect(struct serio *serio);
David Howells7d12e782006-10-05 14:55:46 +010078irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned int flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80void __serio_register_port(struct serio *serio, struct module *owner);
81static inline void serio_register_port(struct serio *serio)
82{
83 __serio_register_port(serio, THIS_MODULE);
84}
85
86void serio_unregister_port(struct serio *serio);
Dmitry Torokhovdbf4ccd2005-06-01 02:40:01 -050087void serio_unregister_child_port(struct serio *serio);
Linus Torvalds1da177e2005-04-16 15:20:36 -070088void __serio_unregister_port_delayed(struct serio *serio, struct module *owner);
89static inline void serio_unregister_port_delayed(struct serio *serio)
90{
91 __serio_unregister_port_delayed(serio, THIS_MODULE);
92}
93
94void __serio_register_driver(struct serio_driver *drv, struct module *owner);
95static inline void serio_register_driver(struct serio_driver *drv)
96{
97 __serio_register_driver(drv, THIS_MODULE);
98}
99
100void serio_unregister_driver(struct serio_driver *drv);
101
102static inline int serio_write(struct serio *serio, unsigned char data)
103{
104 if (serio->write)
105 return serio->write(serio, data);
106 else
107 return -1;
108}
109
110static inline void serio_drv_write_wakeup(struct serio *serio)
111{
112 if (serio->drv && serio->drv->write_wakeup)
113 serio->drv->write_wakeup(serio);
114}
115
116static inline void serio_cleanup(struct serio *serio)
117{
118 if (serio->drv && serio->drv->cleanup)
119 serio->drv->cleanup(serio);
120}
121
122/*
Akinobu Mita0b280022006-03-26 01:38:58 -0800123 * Use the following functions to manipulate serio's per-port
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 * driver-specific data.
125 */
126static inline void *serio_get_drvdata(struct serio *serio)
127{
128 return dev_get_drvdata(&serio->dev);
129}
130
131static inline void serio_set_drvdata(struct serio *serio, void *data)
132{
133 dev_set_drvdata(&serio->dev, data);
134}
135
136/*
Akinobu Mita0b280022006-03-26 01:38:58 -0800137 * Use the following functions to protect critical sections in
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 * driver code from port's interrupt handler
139 */
140static inline void serio_pause_rx(struct serio *serio)
141{
142 spin_lock_irq(&serio->lock);
143}
144
145static inline void serio_continue_rx(struct serio *serio)
146{
147 spin_unlock_irq(&serio->lock);
148}
149
150/*
Akinobu Mita0b280022006-03-26 01:38:58 -0800151 * Use the following functions to pin serio's driver in process context
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 */
153static inline int serio_pin_driver(struct serio *serio)
154{
Arjan van de Venc4e32e92006-02-19 00:21:55 -0500155 return mutex_lock_interruptible(&serio->drv_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156}
157
Dmitry Torokhovdbf4ccd2005-06-01 02:40:01 -0500158static inline void serio_pin_driver_uninterruptible(struct serio *serio)
159{
Arjan van de Venc4e32e92006-02-19 00:21:55 -0500160 mutex_lock(&serio->drv_mutex);
Dmitry Torokhovdbf4ccd2005-06-01 02:40:01 -0500161}
162
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163static inline void serio_unpin_driver(struct serio *serio)
164{
Arjan van de Venc4e32e92006-02-19 00:21:55 -0500165 mutex_unlock(&serio->drv_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166}
167
168
169#endif
170
171/*
172 * bit masks for use in "interrupt" flags (3rd argument)
173 */
174#define SERIO_TIMEOUT 1
175#define SERIO_PARITY 2
176#define SERIO_FRAME 4
177
178/*
179 * Serio types
180 */
181#define SERIO_XT 0x00
182#define SERIO_8042 0x01
183#define SERIO_RS232 0x02
184#define SERIO_HIL_MLC 0x03
185#define SERIO_PS_PSTHRU 0x05
186#define SERIO_8042_XL 0x06
187
188/*
189 * Serio types
190 */
191#define SERIO_UNKNOWN 0x00
192#define SERIO_MSC 0x01
193#define SERIO_SUN 0x02
194#define SERIO_MS 0x03
195#define SERIO_MP 0x04
196#define SERIO_MZ 0x05
197#define SERIO_MZP 0x06
198#define SERIO_MZPP 0x07
199#define SERIO_VSXXXAA 0x08
200#define SERIO_SUNKBD 0x10
201#define SERIO_WARRIOR 0x18
202#define SERIO_SPACEORB 0x19
203#define SERIO_MAGELLAN 0x1a
204#define SERIO_SPACEBALL 0x1b
205#define SERIO_GUNZE 0x1c
206#define SERIO_IFORCE 0x1d
207#define SERIO_STINGER 0x1e
208#define SERIO_NEWTON 0x1f
209#define SERIO_STOWAWAY 0x20
210#define SERIO_H3600 0x21
211#define SERIO_PS2SER 0x22
212#define SERIO_TWIDKBD 0x23
213#define SERIO_TWIDJOY 0x24
214#define SERIO_HIL 0x25
215#define SERIO_SNES232 0x26
216#define SERIO_SEMTECH 0x27
217#define SERIO_LKKBD 0x28
218#define SERIO_ELO 0x29
219#define SERIO_MICROTOUCH 0x30
Rick Kochee479992006-08-05 00:32:18 -0400220#define SERIO_PENMOUNT 0x31
Rick Koch4003dff2006-08-05 00:32:24 -0400221#define SERIO_TOUCHRIGHT 0x32
Rick Koch11ea3172006-08-05 00:32:30 -0400222#define SERIO_TOUCHWIN 0x33
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223
224#endif