Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1/*
2 * Synaptics TouchPad PS/2 mouse driver
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 as published by
6 * the Free Software Foundation.
7 */
8
9#ifndef _SYNAPTICS_H
10#define _SYNAPTICS_H
11
12/* synaptics queries */
13#define SYN_QUE_IDENTIFY 0x00
14#define SYN_QUE_MODES 0x01
15#define SYN_QUE_CAPABILITIES 0x02
16#define SYN_QUE_MODEL 0x03
17#define SYN_QUE_SERIAL_NUMBER_PREFIX 0x06
18#define SYN_QUE_SERIAL_NUMBER_SUFFIX 0x07
19#define SYN_QUE_RESOLUTION 0x08
20#define SYN_QUE_EXT_CAPAB 0x09
21
22/* synatics modes */
23#define SYN_BIT_ABSOLUTE_MODE (1 << 7)
24#define SYN_BIT_HIGH_RATE (1 << 6)
25#define SYN_BIT_SLEEP_MODE (1 << 3)
26#define SYN_BIT_DISABLE_GESTURE (1 << 2)
27#define SYN_BIT_FOUR_BYTE_CLIENT (1 << 1)
28#define SYN_BIT_W_MODE (1 << 0)
29
30/* synaptics model ID bits */
31#define SYN_MODEL_ROT180(m) ((m) & (1 << 23))
32#define SYN_MODEL_PORTRAIT(m) ((m) & (1 << 22))
33#define SYN_MODEL_SENSOR(m) (((m) >> 16) & 0x3f)
34#define SYN_MODEL_HARDWARE(m) (((m) >> 9) & 0x7f)
35#define SYN_MODEL_NEWABS(m) ((m) & (1 << 7))
36#define SYN_MODEL_PEN(m) ((m) & (1 << 6))
37#define SYN_MODEL_SIMPLIC(m) ((m) & (1 << 5))
38#define SYN_MODEL_GEOMETRY(m) ((m) & 0x0f)
39
40/* synaptics capability bits */
41#define SYN_CAP_EXTENDED(c) ((c) & (1 << 23))
42#define SYN_CAP_MIDDLE_BUTTON(c) ((c) & (1 << 18))
43#define SYN_CAP_PASS_THROUGH(c) ((c) & (1 << 7))
44#define SYN_CAP_SLEEP(c) ((c) & (1 << 4))
45#define SYN_CAP_FOUR_BUTTON(c) ((c) & (1 << 3))
46#define SYN_CAP_MULTIFINGER(c) ((c) & (1 << 1))
47#define SYN_CAP_PALMDETECT(c) ((c) & (1 << 0))
48#define SYN_CAP_VALID(c) ((((c) & 0x00ff00) >> 8) == 0x47)
49#define SYN_EXT_CAP_REQUESTS(c) (((c) & 0x700000) >> 20)
50#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & 0x00f000) >> 12)
51
52/* synaptics modes query bits */
53#define SYN_MODE_ABSOLUTE(m) ((m) & (1 << 7))
54#define SYN_MODE_RATE(m) ((m) & (1 << 6))
55#define SYN_MODE_BAUD_SLEEP(m) ((m) & (1 << 3))
56#define SYN_MODE_DISABLE_GESTURE(m) ((m) & (1 << 2))
57#define SYN_MODE_PACKSIZE(m) ((m) & (1 << 1))
58#define SYN_MODE_WMODE(m) ((m) & (1 << 0))
59
60/* synaptics identify query bits */
61#define SYN_ID_MODEL(i) (((i) >> 4) & 0x0f)
62#define SYN_ID_MAJOR(i) ((i) & 0x0f)
63#define SYN_ID_MINOR(i) (((i) >> 16) & 0xff)
64#define SYN_ID_IS_SYNAPTICS(i) ((((i) >> 8) & 0xff) == 0x47)
65
66/* synaptics special commands */
67#define SYN_PS_SET_MODE2 0x14
68#define SYN_PS_CLIENT_CMD 0x28
69
70/* synaptics packet types */
71#define SYN_NEWABS 0
72#define SYN_NEWABS_STRICT 1
73#define SYN_NEWABS_RELAXED 2
74#define SYN_OLDABS 3
75
76/*
77 * A structure to describe the state of the touchpad hardware (buttons and pad)
78 */
79
80struct synaptics_hw_state {
81 int x;
82 int y;
83 int z;
84 int w;
85 unsigned int left:1;
86 unsigned int right:1;
87 unsigned int middle:1;
88 unsigned int up:1;
89 unsigned int down:1;
90 unsigned char ext_buttons;
91 signed char scroll;
92};
93
94struct synaptics_data {
95 /* Data read from the touchpad */
96 unsigned long int model_id; /* Model-ID */
97 unsigned long int capabilities; /* Capabilities */
98 unsigned long int ext_cap; /* Extended Capabilities */
99 unsigned long int identity; /* Identification */
100
101 unsigned char pkt_type; /* packet type - old, new, etc */
102 unsigned char mode; /* current mode byte */
103 int scroll;
104};
105
106int synaptics_detect(struct psmouse *psmouse, int set_properties);
107int synaptics_init(struct psmouse *psmouse);
108void synaptics_reset(struct psmouse *psmouse);
109
110#endif /* _SYNAPTICS_H */