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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
94struct 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
109extern int fsp_detect(struct psmouse *psmouse, bool set_properties);
110extern int fsp_init(struct psmouse *psmouse);
111
112#endif /* __KERNEL__ */
113
114#endif /* !__SENTELIC_H */