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psmouse.h
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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_RESET_WRAP 0x00ec
12 #define PSMOUSE_CMD_GETID 0x02f2
13 #define PSMOUSE_CMD_SETRATE 0x10f3
14 #define PSMOUSE_CMD_ENABLE 0x00f4
15 #define PSMOUSE_CMD_DISABLE 0x00f5
16 #define PSMOUSE_CMD_RESET_DIS 0x00f6
17 #define PSMOUSE_CMD_RESET_BAT 0x02ff
18 
19 #define PSMOUSE_RET_BAT 0xaa
20 #define PSMOUSE_RET_ID 0x00
21 #define PSMOUSE_RET_ACK 0xfa
22 #define PSMOUSE_RET_NAK 0xfe
23 
24 enum psmouse_state {
25  PSMOUSE_IGNORE,
26  PSMOUSE_INITIALIZING,
27  PSMOUSE_RESYNCING,
28  PSMOUSE_CMD_MODE,
29  PSMOUSE_ACTIVATED,
30 };
31 
32 /* psmouse protocol handler return codes */
33 typedef enum {
34  PSMOUSE_BAD_DATA,
35  PSMOUSE_GOOD_DATA,
36  PSMOUSE_FULL_PACKET
37 } psmouse_ret_t;
38 
39 struct psmouse {
40  void *private;
41  struct input_dev *dev;
42  struct ps2dev ps2dev;
43  struct delayed_work resync_work;
44  char *vendor;
45  char *name;
46  unsigned char packet[8];
47  unsigned char badbyte;
48  unsigned char pktcnt;
49  unsigned char pktsize;
50  unsigned char type;
51  bool ignore_parity;
52  bool acks_disable_command;
53  unsigned int model;
54  unsigned long last;
55  unsigned long out_of_sync_cnt;
56  unsigned long num_resyncs;
57  enum psmouse_state state;
58  char devname[64];
59  char phys[32];
60 
61  unsigned int rate;
62  unsigned int resolution;
63  unsigned int resetafter;
64  unsigned int resync_time;
65  bool smartscroll; /* Logitech only */
66 
67  psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
68  void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
69  void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
70 
71  int (*reconnect)(struct psmouse *psmouse);
72  void (*disconnect)(struct psmouse *psmouse);
73  void (*cleanup)(struct psmouse *psmouse);
74  int (*poll)(struct psmouse *psmouse);
75 
76  void (*pt_activate)(struct psmouse *psmouse);
77  void (*pt_deactivate)(struct psmouse *psmouse);
78 };
79 
80 enum psmouse_type {
81  PSMOUSE_NONE,
82  PSMOUSE_PS2,
83  PSMOUSE_PS2PP,
84  PSMOUSE_THINKPS,
85  PSMOUSE_GENPS,
86  PSMOUSE_IMPS,
87  PSMOUSE_IMEX,
88  PSMOUSE_SYNAPTICS,
89  PSMOUSE_ALPS,
90  PSMOUSE_LIFEBOOK,
91  PSMOUSE_TRACKPOINT,
92  PSMOUSE_TOUCHKIT_PS2,
93  PSMOUSE_CORTRON,
94  PSMOUSE_HGPK,
95  PSMOUSE_ELANTECH,
96  PSMOUSE_FSP,
97  PSMOUSE_SYNAPTICS_RELATIVE,
98  PSMOUSE_AUTO /* This one should always be last */
99 };
100 
101 void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
102  unsigned long delay);
103 int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
104 int psmouse_reset(struct psmouse *psmouse);
105 void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
106 void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
107 psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);
108 int psmouse_activate(struct psmouse *psmouse);
109 int psmouse_deactivate(struct psmouse *psmouse);
110 
111 struct psmouse_attribute {
112  struct device_attribute dattr;
113  void *data;
114  ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
115  ssize_t (*set)(struct psmouse *psmouse, void *data,
116  const char *buf, size_t count);
117  bool protect;
118 };
119 #define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
120 
121 ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
122  char *buf);
123 ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
124  const char *buf, size_t count);
125 
126 #define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect) \
127 static struct psmouse_attribute psmouse_attr_##_name = { \
128  .dattr = { \
129  .attr = { \
130  .name = __stringify(_name), \
131  .mode = _mode, \
132  }, \
133  .show = psmouse_attr_show_helper, \
134  .store = psmouse_attr_set_helper, \
135  }, \
136  .data = _data, \
137  .show = _show, \
138  .set = _set, \
139  .protect = _protect, \
140 }
141 
142 #define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect) \
143  static ssize_t _show(struct psmouse *, void *, char *); \
144  static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
145  __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)
146 
147 #define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set) \
148  __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, true)
149 
150 #define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show) \
151  static ssize_t _show(struct psmouse *, void *, char *); \
152  __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, true)
153 
154 #define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set) \
155  static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
156  __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, true)
157 
158 #ifndef psmouse_fmt
159 #define psmouse_fmt(fmt) KBUILD_BASENAME ": " fmt
160 #endif
161 
162 #define psmouse_dbg(psmouse, format, ...) \
163  dev_dbg(&(psmouse)->ps2dev.serio->dev, \
164  psmouse_fmt(format), ##__VA_ARGS__)
165 #define psmouse_info(psmouse, format, ...) \
166  dev_info(&(psmouse)->ps2dev.serio->dev, \
167  psmouse_fmt(format), ##__VA_ARGS__)
168 #define psmouse_warn(psmouse, format, ...) \
169  dev_warn(&(psmouse)->ps2dev.serio->dev, \
170  psmouse_fmt(format), ##__VA_ARGS__)
171 #define psmouse_err(psmouse, format, ...) \
172  dev_err(&(psmouse)->ps2dev.serio->dev, \
173  psmouse_fmt(format), ##__VA_ARGS__)
174 #define psmouse_notice(psmouse, format, ...) \
175  dev_notice(&(psmouse)->ps2dev.serio->dev, \
176  psmouse_fmt(format), ##__VA_ARGS__)
177 #define psmouse_printk(level, psmouse, format, ...) \
178  dev_printk(level, \
179  &(psmouse)->ps2dev.serio->dev, \
180  psmouse_fmt(format), ##__VA_ARGS__)
181 
182 
183 #endif /* _PSMOUSE_H */
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