aboutsummaryrefslogtreecommitdiff
path: root/drivers/input/mouse/hgpk.h
blob: dd686771cfe0b53df84f0b75c37c0bc4db1ed972 (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
/*
 * OLPC HGPK (XO-1) touchpad PS/2 mouse driver
 */

#ifndef _HGPK_H
#define _HGPK_H

#define HGPK_GS		0xff       /* The GlideSensor */
#define HGPK_PT		0xcf       /* The PenTablet */

enum hgpk_model_t {
	HGPK_MODEL_PREA = 0x0a,	/* pre-B1s */
	HGPK_MODEL_A = 0x14,	/* found on B1s, PT disabled in hardware */
	HGPK_MODEL_B = 0x28,	/* B2s, has capacitance issues */
	HGPK_MODEL_C = 0x3c,
	HGPK_MODEL_D = 0x50,	/* C1, mass production */
};

enum hgpk_spew_flag {
	NO_SPEW,
	MAYBE_SPEWING,
	SPEW_DETECTED,
	RECALIBRATING,
};

#define SPEW_WATCH_COUNT 42  /* at 12ms/packet, this is 1/2 second */

enum hgpk_mode {
	HGPK_MODE_MOUSE,
	HGPK_MODE_GLIDESENSOR,
	HGPK_MODE_PENTABLET,
	HGPK_MODE_INVALID
};

struct hgpk_data {
	struct psmouse *psmouse;
	enum hgpk_mode mode;
	bool powered;
	enum hgpk_spew_flag spew_flag;
	int spew_count, x_tally, y_tally;	/* spew detection */
	unsigned long recalib_window;
	struct delayed_work recalib_wq;
	int abs_x, abs_y;
	int dupe_count;
	int xbigj, ybigj, xlast, ylast; /* jumpiness detection */
	int xsaw_secondary, ysaw_secondary; /* jumpiness detection */
};

#ifdef CONFIG_MOUSE_PS2_OLPC
void hgpk_module_init(void);
int hgpk_detect(struct psmouse *psmouse, bool set_properties);
int hgpk_init(struct psmouse *psmouse);
#else
static inline void hgpk_module_init(void)
{
}
static inline int hgpk_detect(struct psmouse *psmouse, bool set_properties)
{
	return -ENODEV;
}
static inline int hgpk_init(struct psmouse *psmouse)
{
	return -ENODEV;
}
#endif

#endif