summaryrefslogtreecommitdiffstats
path: root/drivers/input/mouse/psmouse.h
blob: cca1744c2a08e8c614dd89752ffb6283b10731be (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
#ifndef _PSMOUSE_H
#define _PSMOUSE_H

#define PSMOUSE_CMD_SETSCALE11	0x00e6
#define PSMOUSE_CMD_SETSCALE21	0x00e7
#define PSMOUSE_CMD_SETRES	0x10e8
#define PSMOUSE_CMD_GETINFO	0x03e9
#define PSMOUSE_CMD_SETSTREAM	0x00ea
#define PSMOUSE_CMD_SETPOLL	0x00f0
#define PSMOUSE_CMD_POLL	0x00eb	/* caller sets number of bytes to receive */
#define PSMOUSE_CMD_GETID	0x02f2
#define PSMOUSE_CMD_SETRATE	0x10f3
#define PSMOUSE_CMD_ENABLE	0x00f4
#define PSMOUSE_CMD_DISABLE	0x00f5
#define PSMOUSE_CMD_RESET_DIS	0x00f6
#define PSMOUSE_CMD_RESET_BAT	0x02ff

#define PSMOUSE_RET_BAT		0xaa
#define PSMOUSE_RET_ID		0x00
#define PSMOUSE_RET_ACK		0xfa
#define PSMOUSE_RET_NAK		0xfe

enum psmouse_state {
	PSMOUSE_IGNORE,
	PSMOUSE_INITIALIZING,
	PSMOUSE_RESYNCING,
	PSMOUSE_CMD_MODE,
	PSMOUSE_ACTIVATED,
};

/* psmouse protocol handler return codes */
typedef enum {
	PSMOUSE_BAD_DATA,
	PSMOUSE_GOOD_DATA,
	PSMOUSE_FULL_PACKET
} psmouse_ret_t;

struct psmouse {
	void *private;
	struct input_dev *dev;
	struct ps2dev ps2dev;
	struct delayed_work resync_work;
	char *vendor;
	char *name;
	unsigned char packet[8];
	unsigned char badbyte;
	unsigned char pktcnt;
	unsigned char pktsize;
	unsigned char type;
	unsigned char acks_disable_command;
	unsigned int model;
	unsigned long last;
	unsigned long out_of_sync;
	unsigned long num_resyncs;
	enum psmouse_state state;
	char devname[64];
	char phys[32];

	unsigned int rate;
	unsigned int resolution;
	unsigned int resetafter;
	unsigned int resync_time;
	unsigned int smartscroll;	/* Logitech only */

	psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
	void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
	void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);

	int (*reconnect)(struct psmouse *psmouse);
	void (*disconnect)(struct psmouse *psmouse);
	void (*cleanup)(struct psmouse *psmouse);
	int (*poll)(struct psmouse *psmouse);

	void (*pt_activate)(struct psmouse *psmouse);
	void (*pt_deactivate)(struct psmouse *psmouse);
};

enum psmouse_type {
	PSMOUSE_NONE,
	PSMOUSE_PS2,
	PSMOUSE_PS2PP,
	PSMOUSE_THINKPS,
	PSMOUSE_GENPS,
	PSMOUSE_IMPS,
	PSMOUSE_IMEX,
	PSMOUSE_SYNAPTICS,
	PSMOUSE_ALPS,
	PSMOUSE_LIFEBOOK,
	PSMOUSE_TRACKPOINT,
	PSMOUSE_TOUCHKIT_PS2,
	PSMOUSE_CORTRON,
	PSMOUSE_HGPK,
	PSMOUSE_ELANTECH,
	PSMOUSE_FSP,
	PSMOUSE_AUTO		/* This one should always be last */
};

void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
		unsigned long delay);
int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
int psmouse_reset(struct psmouse *psmouse);
void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);

struct psmouse_attribute {
	struct device_attribute dattr;
	void *data;
	ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
	ssize_t (*set)(struct psmouse *psmouse, void *data,
			const char *buf, size_t count);
	int protect;
};
#define to_psmouse_attr(a)	container_of((a), struct psmouse_attribute, dattr)

ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
				 char *buf);
ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
				const char *buf, size_t count);

#define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)	\
static struct psmouse_attribute psmouse_attr_##_name = {			\
	.dattr	= {								\
		.attr	= {							\
			.name	= __stringify(_name),				\
			.mode	= _mode,					\
		},								\
		.show	= psmouse_attr_show_helper,				\
		.store	= psmouse_attr_set_helper,				\
	},									\
	.data	= _data,							\
	.show	= _show,							\
	.set	= _set,								\
	.protect = _protect,							\
}

#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect)	\
	static ssize_t _show(struct psmouse *, void *, char *);			\
	static ssize_t _set(struct psmouse *, void *, const char *, size_t);	\
	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)

#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set)			\
	__PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, 1)

#define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show)			\
	static ssize_t _show(struct psmouse *, void *, char *);			\
	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, 1)

#define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set)			\
	static ssize_t _set(struct psmouse *, void *, const char *, size_t);	\
	__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, 1)

#endif /* _PSMOUSE_H */
OpenPOWER on IntegriCloud