1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*-
3  * Finger Sensing Pad PS/2 mouse driver.
4  *
5  * Copyright (C) 2005-2007 Asia Vital Components Co., Ltd.
6  * Copyright (C) 2005-2012 Tai-hwa Liang, Sentelic Corporation.
7  */
8 
9 #ifndef	__SENTELIC_H
10 #define	__SENTELIC_H
11 
12 /* Finger-sensing Pad information registers */
13 #define	FSP_REG_DEVICE_ID	0x00
14 #define	FSP_REG_VERSION		0x01
15 #define	FSP_REG_REVISION	0x04
16 #define	FSP_REG_TMOD_STATUS1	0x0B
17 #define	FSP_BIT_NO_ROTATION	BIT(3)
18 #define	FSP_REG_PAGE_CTRL	0x0F
19 
20 /* Finger-sensing Pad control registers */
21 #define	FSP_REG_SYSCTL1		0x10
22 #define	FSP_BIT_EN_REG_CLK	BIT(5)
23 #define	FSP_REG_TMOD_STATUS	0x20
24 #define	FSP_REG_OPC_QDOWN	0x31
25 #define	FSP_BIT_EN_OPC_TAG	BIT(7)
26 #define	FSP_REG_OPTZ_XLO	0x34
27 #define	FSP_REG_OPTZ_XHI	0x35
28 #define	FSP_REG_OPTZ_YLO	0x36
29 #define	FSP_REG_OPTZ_YHI	0x37
30 #define	FSP_REG_SYSCTL5		0x40
31 #define	FSP_BIT_90_DEGREE	BIT(0)
32 #define	FSP_BIT_EN_MSID6	BIT(1)
33 #define	FSP_BIT_EN_MSID7	BIT(2)
34 #define	FSP_BIT_EN_MSID8	BIT(3)
35 #define	FSP_BIT_EN_AUTO_MSID8	BIT(5)
36 #define	FSP_BIT_EN_PKT_G0	BIT(6)
37 
38 #define	FSP_REG_ONPAD_CTL	0x43
39 #define	FSP_BIT_ONPAD_ENABLE	BIT(0)
40 #define	FSP_BIT_ONPAD_FBBB	BIT(1)
41 #define	FSP_BIT_FIX_VSCR	BIT(3)
42 #define	FSP_BIT_FIX_HSCR	BIT(5)
43 #define	FSP_BIT_DRAG_LOCK	BIT(6)
44 
45 #define	FSP_REG_SWC1		(0x90)
46 #define	FSP_BIT_SWC1_EN_ABS_1F	BIT(0)
47 #define	FSP_BIT_SWC1_EN_GID	BIT(1)
48 #define	FSP_BIT_SWC1_EN_ABS_2F	BIT(2)
49 #define	FSP_BIT_SWC1_EN_FUP_OUT	BIT(3)
50 #define	FSP_BIT_SWC1_EN_ABS_CON	BIT(4)
51 #define	FSP_BIT_SWC1_GST_GRP0	BIT(5)
52 #define	FSP_BIT_SWC1_GST_GRP1	BIT(6)
53 #define	FSP_BIT_SWC1_BX_COMPAT	BIT(7)
54 
55 #define	FSP_PAGE_0B		(0x0b)
56 #define	FSP_PAGE_82		(0x82)
57 #define	FSP_PAGE_DEFAULT	FSP_PAGE_82
58 
59 #define	FSP_REG_SN0		(0x40)
60 #define	FSP_REG_SN1		(0x41)
61 #define	FSP_REG_SN2		(0x42)
62 
63 /* Finger-sensing Pad packet formating related definitions */
64 
65 /* absolute packet type */
66 #define	FSP_PKT_TYPE_NORMAL	(0x00)
67 #define	FSP_PKT_TYPE_ABS	(0x01)
68 #define	FSP_PKT_TYPE_NOTIFY	(0x02)
69 #define	FSP_PKT_TYPE_NORMAL_OPC	(0x03)
70 #define	FSP_PKT_TYPE_SHIFT	(6)
71 
72 /* bit definitions for the first byte of report packet */
73 #define	FSP_PB0_LBTN		BIT(0)
74 #define	FSP_PB0_RBTN		BIT(1)
75 #define	FSP_PB0_MBTN		BIT(2)
76 #define	FSP_PB0_MFMC_FGR2	FSP_PB0_MBTN
77 #define	FSP_PB0_MUST_SET	BIT(3)
78 #define	FSP_PB0_PHY_BTN		BIT(4)
79 #define	FSP_PB0_MFMC		BIT(5)
80 
81 /* hardware revisions */
82 #define	FSP_VER_STL3888_A4	(0xC1)
83 #define	FSP_VER_STL3888_B0	(0xD0)
84 #define	FSP_VER_STL3888_B1	(0xD1)
85 #define	FSP_VER_STL3888_B2	(0xD2)
86 #define	FSP_VER_STL3888_C0	(0xE0)
87 #define	FSP_VER_STL3888_C1	(0xE1)
88 #define	FSP_VER_STL3888_D0	(0xE2)
89 #define	FSP_VER_STL3888_D1	(0xE3)
90 #define	FSP_VER_STL3888_E0	(0xE4)
91 
92 #ifdef __KERNEL__
93 
94 struct fsp_data {
95 	unsigned char	ver;		/* hardware version */
96 	unsigned char	rev;		/* hardware revison */
97 	unsigned int	buttons;	/* Number of buttons */
98 	unsigned int	flags;
99 #define	FSPDRV_FLAG_EN_OPC	(0x001)	/* enable on-pad clicking */
100 
101 	bool		vscroll;	/* Vertical scroll zone enabled */
102 	bool		hscroll;	/* Horizontal scroll zone enabled */
103 
104 	unsigned char	last_reg;	/* Last register we requested read from */
105 	unsigned char	last_val;
106 	unsigned int	last_mt_fgr;	/* Last seen finger(multitouch) */
107 };
108 
109 extern int fsp_detect(struct psmouse *psmouse, bool set_properties);
110 extern int fsp_init(struct psmouse *psmouse);
111 
112 #endif	/* __KERNEL__ */
113 
114 #endif	/* !__SENTELIC_H */
115