1 #ifndef _CYPRESS_PS2_H
2 #define _CYPRESS_PS2_H
3
4 #include "psmouse.h"
5
6 #define CMD_BITS_MASK 0x03
7 #define COMPOSIT(x, s) (((x) & CMD_BITS_MASK) << (s))
8
9 #define ENCODE_CMD(aa, bb, cc, dd) \
10 (COMPOSIT((aa), 6) | COMPOSIT((bb), 4) | COMPOSIT((cc), 2) | COMPOSIT((dd), 0))
11 #define CYTP_CMD_ABS_NO_PRESSURE_MODE ENCODE_CMD(0, 1, 0, 0)
12 #define CYTP_CMD_ABS_WITH_PRESSURE_MODE ENCODE_CMD(0, 1, 0, 1)
13 #define CYTP_CMD_SMBUS_MODE ENCODE_CMD(0, 1, 1, 0)
14 #define CYTP_CMD_STANDARD_MODE ENCODE_CMD(0, 2, 0, 0) /* not implemented yet. */
15 #define CYTP_CMD_CYPRESS_REL_MODE ENCODE_CMD(1, 1, 1, 1) /* not implemented yet. */
16 #define CYTP_CMD_READ_CYPRESS_ID ENCODE_CMD(0, 0, 0, 0)
17 #define CYTP_CMD_READ_TP_METRICS ENCODE_CMD(0, 0, 0, 1)
18 #define CYTP_CMD_SET_HSCROLL_WIDTH(w) ENCODE_CMD(1, 1, 0, (w))
19 #define CYTP_CMD_SET_HSCROLL_MASK ENCODE_CMD(1, 1, 0, 0)
20 #define CYTP_CMD_SET_VSCROLL_WIDTH(w) ENCODE_CMD(1, 2, 0, (w))
21 #define CYTP_CMD_SET_VSCROLL_MASK ENCODE_CMD(1, 2, 0, 0)
22 #define CYTP_CMD_SET_PALM_GEOMETRY(e) ENCODE_CMD(1, 2, 1, (e))
23 #define CYTP_CMD_PALM_GEMMETRY_MASK ENCODE_CMD(1, 2, 1, 0)
24 #define CYTP_CMD_SET_PALM_SENSITIVITY(s) ENCODE_CMD(1, 2, 2, (s))
25 #define CYTP_CMD_PALM_SENSITIVITY_MASK ENCODE_CMD(1, 2, 2, 0)
26 #define CYTP_CMD_SET_MOUSE_SENSITIVITY(s) ENCODE_CMD(1, 3, ((s) >> 2), (s))
27 #define CYTP_CMD_MOUSE_SENSITIVITY_MASK ENCODE_CMD(1, 3, 0, 0)
28 #define CYTP_CMD_REQUEST_BASELINE_STATUS ENCODE_CMD(2, 0, 0, 1)
29 #define CYTP_CMD_REQUEST_RECALIBRATION ENCODE_CMD(2, 0, 0, 3)
30
31 #define DECODE_CMD_AA(x) (((x) >> 6) & CMD_BITS_MASK)
32 #define DECODE_CMD_BB(x) (((x) >> 4) & CMD_BITS_MASK)
33 #define DECODE_CMD_CC(x) (((x) >> 2) & CMD_BITS_MASK)
34 #define DECODE_CMD_DD(x) ((x) & CMD_BITS_MASK)
35
36 /* Cypress trackpad working mode. */
37 #define CYTP_BIT_ABS_PRESSURE (1 << 3)
38 #define CYTP_BIT_ABS_NO_PRESSURE (1 << 2)
39 #define CYTP_BIT_CYPRESS_REL (1 << 1)
40 #define CYTP_BIT_STANDARD_REL (1 << 0)
41 #define CYTP_BIT_REL_MASK (CYTP_BIT_CYPRESS_REL | CYTP_BIT_STANDARD_REL)
42 #define CYTP_BIT_ABS_MASK (CYTP_BIT_ABS_PRESSURE | CYTP_BIT_ABS_NO_PRESSURE)
43 #define CYTP_BIT_ABS_REL_MASK (CYTP_BIT_ABS_MASK | CYTP_BIT_REL_MASK)
44
45 #define CYTP_BIT_HIGH_RATE (1 << 4)
46 /*
47 * report mode bit is set, firmware working in Remote Mode.
48 * report mode bit is cleared, firmware working in Stream Mode.
49 */
50 #define CYTP_BIT_REPORT_MODE (1 << 5)
51
52 /* scrolling width values for set HSCROLL and VSCROLL width command. */
53 #define SCROLL_WIDTH_NARROW 1
54 #define SCROLL_WIDTH_NORMAL 2
55 #define SCROLL_WIDTH_WIDE 3
56
57 #define PALM_GEOMETRY_ENABLE 1
58 #define PALM_GEOMETRY_DISABLE 0
59
60 #define TP_METRICS_MASK 0x80
61 #define FW_VERSION_MASX 0x7f
62 #define FW_VER_HIGH_MASK 0x70
63 #define FW_VER_LOW_MASK 0x0f
64
65 /* Times to retry a ps2_command and millisecond delay between tries. */
66 #define CYTP_PS2_CMD_TRIES 3
67 #define CYTP_PS2_CMD_DELAY 500
68
69 /* time out for PS/2 command only in milliseconds. */
70 #define CYTP_CMD_TIMEOUT 200
71 #define CYTP_DATA_TIMEOUT 30
72
73 #define CYTP_EXT_CMD 0xe8
74 #define CYTP_PS2_RETRY 0xfe
75 #define CYTP_PS2_ERROR 0xfc
76
77 #define CYTP_RESP_RETRY 0x01
78 #define CYTP_RESP_ERROR 0xfe
79
80
81 #define CYTP_105001_WIDTH 97 /* Dell XPS 13 */
82 #define CYTP_105001_HIGH 59
83 #define CYTP_DEFAULT_WIDTH (CYTP_105001_WIDTH)
84 #define CYTP_DEFAULT_HIGH (CYTP_105001_HIGH)
85
86 #define CYTP_ABS_MAX_X 1600
87 #define CYTP_ABS_MAX_Y 900
88 #define CYTP_MAX_PRESSURE 255
89 #define CYTP_MIN_PRESSURE 0
90
91 /* header byte bits of relative package. */
92 #define BTN_LEFT_BIT 0x01
93 #define BTN_RIGHT_BIT 0x02
94 #define BTN_MIDDLE_BIT 0x04
95 #define REL_X_SIGN_BIT 0x10
96 #define REL_Y_SIGN_BIT 0x20
97
98 /* header byte bits of absolute package. */
99 #define ABS_VSCROLL_BIT 0x10
100 #define ABS_HSCROLL_BIT 0x20
101 #define ABS_MULTIFINGER_TAP 0x04
102 #define ABS_EDGE_MOTION_MASK 0x80
103
104 #define DFLT_RESP_BITS_VALID 0x88 /* SMBus bit should not be set. */
105 #define DFLT_RESP_SMBUS_BIT 0x80
106 #define DFLT_SMBUS_MODE 0x80
107 #define DFLT_PS2_MODE 0x00
108 #define DFLT_RESP_BIT_MODE 0x40
109 #define DFLT_RESP_REMOTE_MODE 0x40
110 #define DFLT_RESP_STREAM_MODE 0x00
111 #define DFLT_RESP_BIT_REPORTING 0x20
112 #define DFLT_RESP_BIT_SCALING 0x10
113
114 #define TP_METRICS_BIT_PALM 0x80
115 #define TP_METRICS_BIT_STUBBORN 0x40
116 #define TP_METRICS_BIT_2F_JITTER 0x30
117 #define TP_METRICS_BIT_1F_JITTER 0x0c
118 #define TP_METRICS_BIT_APA 0x02
119 #define TP_METRICS_BIT_MTG 0x01
120 #define TP_METRICS_BIT_ABS_PKT_FORMAT_SET 0xf0
121 #define TP_METRICS_BIT_2F_SPIKE 0x0c
122 #define TP_METRICS_BIT_1F_SPIKE 0x03
123
124 /* bits of first byte response of E9h-Status Request command. */
125 #define RESP_BTN_RIGHT_BIT 0x01
126 #define RESP_BTN_MIDDLE_BIT 0x02
127 #define RESP_BTN_LEFT_BIT 0x04
128 #define RESP_SCALING_BIT 0x10
129 #define RESP_ENABLE_BIT 0x20
130 #define RESP_REMOTE_BIT 0x40
131 #define RESP_SMBUS_BIT 0x80
132
133 #define CYTP_MAX_MT_SLOTS 2
134
135 struct cytp_contact {
136 int x;
137 int y;
138 int z; /* also named as touch pressure. */
139 };
140
141 /* The structure of Cypress Trackpad event data. */
142 struct cytp_report_data {
143 int contact_cnt;
144 struct cytp_contact contacts[CYTP_MAX_MT_SLOTS];
145 unsigned int left:1;
146 unsigned int right:1;
147 unsigned int middle:1;
148 unsigned int tap:1; /* multi-finger tap detected. */
149 };
150
151 /* The structure of Cypress Trackpad device private data. */
152 struct cytp_data {
153 int fw_version;
154
155 int pkt_size;
156 int mode;
157
158 int tp_min_pressure;
159 int tp_max_pressure;
160 int tp_width; /* X direction physical size in mm. */
161 int tp_high; /* Y direction physical size in mm. */
162 int tp_max_abs_x; /* Max X absolute units that can be reported. */
163 int tp_max_abs_y; /* Max Y absolute units that can be reported. */
164
165 int tp_res_x; /* X resolution in units/mm. */
166 int tp_res_y; /* Y resolution in units/mm. */
167
168 int tp_metrics_supported;
169 };
170
171
172 #ifdef CONFIG_MOUSE_PS2_CYPRESS
173 int cypress_detect(struct psmouse *psmouse, bool set_properties);
174 int cypress_init(struct psmouse *psmouse);
175 #else
cypress_detect(struct psmouse * psmouse,bool set_properties)176 inline int cypress_detect(struct psmouse *psmouse, bool set_properties)
177 {
178 return -ENOSYS;
179 }
cypress_init(struct psmouse * psmouse)180 inline int cypress_init(struct psmouse *psmouse)
181 {
182 return -ENOSYS;
183 }
184 #endif /* CONFIG_MOUSE_PS2_CYPRESS */
185
186 #endif /* _CYPRESS_PS2_H */
187