Input: psmouse - add support for Elantech touchpads
[linux-2.6.git] / drivers / input / mouse / psmouse.h
1 #ifndef _PSMOUSE_H
2 #define _PSMOUSE_H
3
4 #define PSMOUSE_CMD_SETSCALE11  0x00e6
5 #define PSMOUSE_CMD_SETSCALE21  0x00e7
6 #define PSMOUSE_CMD_SETRES      0x10e8
7 #define PSMOUSE_CMD_GETINFO     0x03e9
8 #define PSMOUSE_CMD_SETSTREAM   0x00ea
9 #define PSMOUSE_CMD_SETPOLL     0x00f0
10 #define PSMOUSE_CMD_POLL        0x00eb  /* caller sets number of bytes to receive */
11 #define PSMOUSE_CMD_GETID       0x02f2
12 #define PSMOUSE_CMD_SETRATE     0x10f3
13 #define PSMOUSE_CMD_ENABLE      0x00f4
14 #define PSMOUSE_CMD_DISABLE     0x00f5
15 #define PSMOUSE_CMD_RESET_DIS   0x00f6
16 #define PSMOUSE_CMD_RESET_BAT   0x02ff
17
18 #define PSMOUSE_RET_BAT         0xaa
19 #define PSMOUSE_RET_ID          0x00
20 #define PSMOUSE_RET_ACK         0xfa
21 #define PSMOUSE_RET_NAK         0xfe
22
23 enum psmouse_state {
24         PSMOUSE_IGNORE,
25         PSMOUSE_INITIALIZING,
26         PSMOUSE_RESYNCING,
27         PSMOUSE_CMD_MODE,
28         PSMOUSE_ACTIVATED,
29 };
30
31 /* psmouse protocol handler return codes */
32 typedef enum {
33         PSMOUSE_BAD_DATA,
34         PSMOUSE_GOOD_DATA,
35         PSMOUSE_FULL_PACKET
36 } psmouse_ret_t;
37
38 struct psmouse {
39         void *private;
40         struct input_dev *dev;
41         struct ps2dev ps2dev;
42         struct delayed_work resync_work;
43         char *vendor;
44         char *name;
45         unsigned char packet[8];
46         unsigned char badbyte;
47         unsigned char pktcnt;
48         unsigned char pktsize;
49         unsigned char type;
50         unsigned char acks_disable_command;
51         unsigned int model;
52         unsigned long last;
53         unsigned long out_of_sync;
54         unsigned long num_resyncs;
55         enum psmouse_state state;
56         char devname[64];
57         char phys[32];
58
59         unsigned int rate;
60         unsigned int resolution;
61         unsigned int resetafter;
62         unsigned int resync_time;
63         unsigned int smartscroll;       /* Logitech only */
64
65         psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
66         void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
67         void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
68
69         int (*reconnect)(struct psmouse *psmouse);
70         void (*disconnect)(struct psmouse *psmouse);
71         void (*cleanup)(struct psmouse *psmouse);
72         int (*poll)(struct psmouse *psmouse);
73
74         void (*pt_activate)(struct psmouse *psmouse);
75         void (*pt_deactivate)(struct psmouse *psmouse);
76 };
77
78 enum psmouse_type {
79         PSMOUSE_NONE,
80         PSMOUSE_PS2,
81         PSMOUSE_PS2PP,
82         PSMOUSE_THINKPS,
83         PSMOUSE_GENPS,
84         PSMOUSE_IMPS,
85         PSMOUSE_IMEX,
86         PSMOUSE_SYNAPTICS,
87         PSMOUSE_ALPS,
88         PSMOUSE_LIFEBOOK,
89         PSMOUSE_TRACKPOINT,
90         PSMOUSE_TOUCHKIT_PS2,
91         PSMOUSE_CORTRON,
92         PSMOUSE_HGPK,
93         PSMOUSE_ELANTECH,
94         PSMOUSE_AUTO            /* This one should always be last */
95 };
96
97 void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
98                 unsigned long delay);
99 int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
100 int psmouse_reset(struct psmouse *psmouse);
101 void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
102 void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
103
104 struct psmouse_attribute {
105         struct device_attribute dattr;
106         void *data;
107         ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
108         ssize_t (*set)(struct psmouse *psmouse, void *data,
109                         const char *buf, size_t count);
110         int protect;
111 };
112 #define to_psmouse_attr(a)      container_of((a), struct psmouse_attribute, dattr)
113
114 ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
115                                  char *buf);
116 ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
117                                 const char *buf, size_t count);
118
119 #define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect)       \
120 static ssize_t _show(struct psmouse *, void *data, char *);                     \
121 static ssize_t _set(struct psmouse *, void *data, const char *, size_t);        \
122 static struct psmouse_attribute psmouse_attr_##_name = {                        \
123         .dattr  = {                                                             \
124                 .attr   = {                                                     \
125                         .name   = __stringify(_name),                           \
126                         .mode   = _mode,                                        \
127                 },                                                              \
128                 .show   = psmouse_attr_show_helper,                             \
129                 .store  = psmouse_attr_set_helper,                              \
130         },                                                                      \
131         .data   = _data,                                                        \
132         .show   = _show,                                                        \
133         .set    = _set,                                                         \
134         .protect = _protect,                                                    \
135 }
136
137 #define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set)   \
138                 __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, 1)
139
140 #endif /* _PSMOUSE_H */