tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * OLPC HGPK (XO-1) touchpad PS/2 mouse driver
3 */
4
5#ifndef _HGPK_H
6#define _HGPK_H
7
8#define HGPK_GS 0xff /* The GlideSensor */
9#define HGPK_PT 0xcf /* The PenTablet */
10
11enum hgpk_model_t {
12 HGPK_MODEL_PREA = 0x0a, /* pre-B1s */
13 HGPK_MODEL_A = 0x14, /* found on B1s, PT disabled in hardware */
14 HGPK_MODEL_B = 0x28, /* B2s, has capacitance issues */
15 HGPK_MODEL_C = 0x3c,
16 HGPK_MODEL_D = 0x50, /* C1, mass production */
17};
18
19enum hgpk_spew_flag {
20 NO_SPEW,
21 MAYBE_SPEWING,
22 SPEW_DETECTED,
23 RECALIBRATING,
24};
25
26#define SPEW_WATCH_COUNT 42 /* at 12ms/packet, this is 1/2 second */
27
28enum hgpk_mode {
29 HGPK_MODE_MOUSE,
30 HGPK_MODE_GLIDESENSOR,
31 HGPK_MODE_PENTABLET,
32 HGPK_MODE_INVALID
33};
34
35struct hgpk_data {
36 struct psmouse *psmouse;
37 enum hgpk_mode mode;
38 bool powered;
39 enum hgpk_spew_flag spew_flag;
40 int spew_count, x_tally, y_tally; /* spew detection */
41 unsigned long recalib_window;
42 struct delayed_work recalib_wq;
43 int abs_x, abs_y;
44 int dupe_count;
45 int xbigj, ybigj, xlast, ylast; /* jumpiness detection */
46 int xsaw_secondary, ysaw_secondary; /* jumpiness detection */
47};
48
49#define hgpk_dbg(psmouse, format, arg...) \
50 dev_dbg(&(psmouse)->ps2dev.serio->dev, format, ## arg)
51#define hgpk_err(psmouse, format, arg...) \
52 dev_err(&(psmouse)->ps2dev.serio->dev, format, ## arg)
53#define hgpk_info(psmouse, format, arg...) \
54 dev_info(&(psmouse)->ps2dev.serio->dev, format, ## arg)
55#define hgpk_warn(psmouse, format, arg...) \
56 dev_warn(&(psmouse)->ps2dev.serio->dev, format, ## arg)
57#define hgpk_notice(psmouse, format, arg...) \
58 dev_notice(&(psmouse)->ps2dev.serio->dev, format, ## arg)
59
60#ifdef CONFIG_MOUSE_PS2_OLPC
61void hgpk_module_init(void);
62int hgpk_detect(struct psmouse *psmouse, bool set_properties);
63int hgpk_init(struct psmouse *psmouse);
64#else
65static inline void hgpk_module_init(void)
66{
67}
68static inline int hgpk_detect(struct psmouse *psmouse, bool set_properties)
69{
70 return -ENODEV;
71}
72static inline int hgpk_init(struct psmouse *psmouse)
73{
74 return -ENODEV;
75}
76#endif
77
78#endif