Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * ALPS touchpad PS/2 mouse driver | |
3 | * | |
4 | * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> | |
963f626d | 5 | * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> |
1da177e4 LT |
6 | * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> |
7 | * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> | |
1d9f2626 | 8 | * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> |
1da177e4 LT |
9 | * |
10 | * ALPS detection, tap switching and status querying info is taken from | |
11 | * tpconfig utility (by C. Scott Ananian and Bruce Kall). | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License version 2 as published by | |
15 | * the Free Software Foundation. | |
16 | */ | |
17 | ||
5a0e3ad6 | 18 | #include <linux/slab.h> |
1da177e4 | 19 | #include <linux/input.h> |
01ce661f | 20 | #include <linux/input/mt.h> |
1da177e4 LT |
21 | #include <linux/serio.h> |
22 | #include <linux/libps2.h> | |
23 | ||
24 | #include "psmouse.h" | |
25 | #include "alps.h" | |
26 | ||
25bded7c SF |
27 | /* |
28 | * Definitions for ALPS version 3 and 4 command mode protocol | |
29 | */ | |
30 | #define ALPS_CMD_NIBBLE_10 0x01f2 | |
31 | ||
cd401204 KC |
32 | #define ALPS_REG_BASE_RUSHMORE 0xc2c0 |
33 | #define ALPS_REG_BASE_PINNACLE 0x0000 | |
34 | ||
25bded7c SF |
35 | static const struct alps_nibble_commands alps_v3_nibble_commands[] = { |
36 | { PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */ | |
37 | { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ | |
38 | { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ | |
39 | { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ | |
40 | { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ | |
41 | { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ | |
42 | { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ | |
43 | { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ | |
44 | { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ | |
45 | { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ | |
46 | { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ | |
47 | { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ | |
48 | { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ | |
49 | { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ | |
50 | { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ | |
51 | { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ | |
52 | }; | |
53 | ||
54 | static const struct alps_nibble_commands alps_v4_nibble_commands[] = { | |
55 | { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ | |
56 | { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ | |
57 | { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ | |
58 | { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ | |
59 | { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ | |
60 | { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ | |
61 | { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ | |
62 | { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ | |
63 | { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ | |
64 | { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ | |
65 | { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ | |
66 | { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ | |
67 | { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ | |
68 | { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ | |
69 | { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ | |
70 | { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ | |
71 | }; | |
72 | ||
95f75e91 YT |
73 | static const struct alps_nibble_commands alps_v6_nibble_commands[] = { |
74 | { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ | |
75 | { PSMOUSE_CMD_SETRATE, 0x0a }, /* 1 */ | |
76 | { PSMOUSE_CMD_SETRATE, 0x14 }, /* 2 */ | |
77 | { PSMOUSE_CMD_SETRATE, 0x28 }, /* 3 */ | |
78 | { PSMOUSE_CMD_SETRATE, 0x3c }, /* 4 */ | |
79 | { PSMOUSE_CMD_SETRATE, 0x50 }, /* 5 */ | |
80 | { PSMOUSE_CMD_SETRATE, 0x64 }, /* 6 */ | |
81 | { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 7 */ | |
82 | { PSMOUSE_CMD_GETID, 0x00 }, /* 8 */ | |
83 | { PSMOUSE_CMD_GETINFO, 0x00 }, /* 9 */ | |
84 | { PSMOUSE_CMD_SETRES, 0x00 }, /* a */ | |
85 | { PSMOUSE_CMD_SETRES, 0x01 }, /* b */ | |
86 | { PSMOUSE_CMD_SETRES, 0x02 }, /* c */ | |
87 | { PSMOUSE_CMD_SETRES, 0x03 }, /* d */ | |
88 | { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* e */ | |
89 | { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ | |
90 | }; | |
91 | ||
25bded7c | 92 | |
71bb21b6 ML |
93 | #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ |
94 | #define ALPS_PASS 0x04 /* device has a pass-through port */ | |
95 | ||
96 | #define ALPS_WHEEL 0x08 /* hardware wheel present */ | |
97 | #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ | |
98 | #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ | |
99 | #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ | |
1d9f2626 SK |
100 | #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with |
101 | 6-byte ALPS packet */ | |
40e8f53b | 102 | #define ALPS_IS_RUSHMORE 0x100 /* device is a rushmore */ |
1da177e4 | 103 | |
e38de678 | 104 | static const struct alps_model_info alps_model_data[] = { |
25bded7c SF |
105 | { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ |
106 | { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */ | |
107 | { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
108 | { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
109 | { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */ | |
110 | { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
111 | { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
112 | { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ | |
113 | { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ | |
114 | { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ | |
115 | { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
116 | { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ | |
117 | { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ | |
118 | { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
119 | { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ | |
120 | { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ | |
121 | { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, | |
122 | { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ | |
1d9f2626 | 123 | /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ |
25bded7c | 124 | { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, |
1d9f2626 | 125 | ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, |
95f75e91 | 126 | { { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT }, /* Dell XT2 */ |
25bded7c SF |
127 | { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ |
128 | { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, | |
129 | ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */ | |
25bded7c | 130 | { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 }, |
1da177e4 LT |
131 | }; |
132 | ||
24af5cb9 KC |
133 | static void alps_set_abs_params_st(struct alps_data *priv, |
134 | struct input_dev *dev1); | |
135 | static void alps_set_abs_params_mt(struct alps_data *priv, | |
136 | struct input_dev *dev1); | |
137 | ||
1da177e4 LT |
138 | /* |
139 | * XXX - this entry is suspicious. First byte has zero lower nibble, | |
140 | * which is what a normal mouse would report. Also, the value 0x0e | |
141 | * isn't valid per PS/2 spec. | |
142 | */ | |
143 | ||
d4b347b2 | 144 | /* Packet formats are described in Documentation/input/alps.txt */ |
1da177e4 | 145 | |
99df65e7 | 146 | static bool alps_is_valid_first_byte(struct alps_data *priv, |
1d9f2626 SK |
147 | unsigned char data) |
148 | { | |
99df65e7 | 149 | return (data & priv->mask0) == priv->byte0; |
1d9f2626 SK |
150 | } |
151 | ||
152 | static void alps_report_buttons(struct psmouse *psmouse, | |
153 | struct input_dev *dev1, struct input_dev *dev2, | |
154 | int left, int right, int middle) | |
155 | { | |
c91ed059 MB |
156 | struct input_dev *dev; |
157 | ||
158 | /* | |
159 | * If shared button has already been reported on the | |
160 | * other device (dev2) then this event should be also | |
161 | * sent through that device. | |
162 | */ | |
163 | dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1; | |
164 | input_report_key(dev, BTN_LEFT, left); | |
165 | ||
166 | dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1; | |
167 | input_report_key(dev, BTN_RIGHT, right); | |
168 | ||
169 | dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1; | |
170 | input_report_key(dev, BTN_MIDDLE, middle); | |
171 | ||
172 | /* | |
173 | * Sync the _other_ device now, we'll do the first | |
174 | * device later once we report the rest of the events. | |
175 | */ | |
176 | input_sync(dev2); | |
1d9f2626 SK |
177 | } |
178 | ||
25bded7c | 179 | static void alps_process_packet_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
180 | { |
181 | struct alps_data *priv = psmouse->private; | |
182 | unsigned char *packet = psmouse->packet; | |
2e5b636b DT |
183 | struct input_dev *dev = psmouse->dev; |
184 | struct input_dev *dev2 = priv->dev2; | |
1da177e4 | 185 | int x, y, z, ges, fin, left, right, middle; |
c30b4c10 | 186 | int back = 0, forward = 0; |
1da177e4 | 187 | |
99df65e7 | 188 | if (priv->proto_version == ALPS_PROTO_V1) { |
d2f4012f YM |
189 | left = packet[2] & 0x10; |
190 | right = packet[2] & 0x08; | |
1da177e4 LT |
191 | middle = 0; |
192 | x = packet[1] | ((packet[0] & 0x07) << 7); | |
193 | y = packet[4] | ((packet[3] & 0x07) << 7); | |
194 | z = packet[5]; | |
195 | } else { | |
196 | left = packet[3] & 1; | |
197 | right = packet[3] & 2; | |
198 | middle = packet[3] & 4; | |
199 | x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); | |
200 | y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); | |
201 | z = packet[5]; | |
202 | } | |
203 | ||
99df65e7 | 204 | if (priv->flags & ALPS_FW_BK_1) { |
3c00bb96 LK |
205 | back = packet[0] & 0x10; |
206 | forward = packet[2] & 4; | |
c30b4c10 ICR |
207 | } |
208 | ||
99df65e7 | 209 | if (priv->flags & ALPS_FW_BK_2) { |
c30b4c10 ICR |
210 | back = packet[3] & 4; |
211 | forward = packet[2] & 4; | |
212 | if ((middle = forward && back)) | |
213 | forward = back = 0; | |
214 | } | |
215 | ||
1da177e4 LT |
216 | ges = packet[2] & 1; |
217 | fin = packet[2] & 2; | |
218 | ||
99df65e7 | 219 | if ((priv->flags & ALPS_DUALPOINT) && z == 127) { |
1da177e4 LT |
220 | input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); |
221 | input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); | |
d7ed5d88 | 222 | |
1d9f2626 | 223 | alps_report_buttons(psmouse, dev2, dev, left, right, middle); |
d7ed5d88 | 224 | |
1da177e4 LT |
225 | input_sync(dev2); |
226 | return; | |
227 | } | |
228 | ||
1d9f2626 | 229 | alps_report_buttons(psmouse, dev, dev2, left, right, middle); |
d7ed5d88 | 230 | |
1da177e4 | 231 | /* Convert hardware tap to a reasonable Z value */ |
71bb21b6 ML |
232 | if (ges && !fin) |
233 | z = 40; | |
1da177e4 LT |
234 | |
235 | /* | |
236 | * A "tap and drag" operation is reported by the hardware as a transition | |
237 | * from (!fin && ges) to (fin && ges). This should be translated to the | |
238 | * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. | |
239 | */ | |
240 | if (ges && fin && !priv->prev_fin) { | |
241 | input_report_abs(dev, ABS_X, x); | |
242 | input_report_abs(dev, ABS_Y, y); | |
243 | input_report_abs(dev, ABS_PRESSURE, 0); | |
244 | input_report_key(dev, BTN_TOOL_FINGER, 0); | |
245 | input_sync(dev); | |
246 | } | |
247 | priv->prev_fin = fin; | |
248 | ||
71bb21b6 ML |
249 | if (z > 30) |
250 | input_report_key(dev, BTN_TOUCH, 1); | |
251 | if (z < 25) | |
252 | input_report_key(dev, BTN_TOUCH, 0); | |
1da177e4 LT |
253 | |
254 | if (z > 0) { | |
255 | input_report_abs(dev, ABS_X, x); | |
256 | input_report_abs(dev, ABS_Y, y); | |
257 | } | |
258 | ||
259 | input_report_abs(dev, ABS_PRESSURE, z); | |
260 | input_report_key(dev, BTN_TOOL_FINGER, z > 0); | |
261 | ||
99df65e7 | 262 | if (priv->flags & ALPS_WHEEL) |
e6c047b9 | 263 | input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); |
1da177e4 | 264 | |
99df65e7 | 265 | if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
c30b4c10 ICR |
266 | input_report_key(dev, BTN_FORWARD, forward); |
267 | input_report_key(dev, BTN_BACK, back); | |
1da177e4 LT |
268 | } |
269 | ||
99df65e7 | 270 | if (priv->flags & ALPS_FOUR_BUTTONS) { |
71bb21b6 ML |
271 | input_report_key(dev, BTN_0, packet[2] & 4); |
272 | input_report_key(dev, BTN_1, packet[0] & 0x10); | |
273 | input_report_key(dev, BTN_2, packet[3] & 4); | |
274 | input_report_key(dev, BTN_3, packet[0] & 0x20); | |
275 | } | |
276 | ||
1da177e4 LT |
277 | input_sync(dev); |
278 | } | |
279 | ||
ee65d4b3 YT |
280 | /* |
281 | * Process bitmap data for V5 protocols. Return value is null. | |
282 | * | |
283 | * The bitmaps don't have enough data to track fingers, so this function | |
284 | * only generates points representing a bounding box of at most two contacts. | |
285 | * These two points are returned in x1, y1, x2, and y2. | |
286 | */ | |
287 | static void alps_process_bitmap_dolphin(struct alps_data *priv, | |
288 | struct alps_fields *fields, | |
289 | int *x1, int *y1, int *x2, int *y2) | |
290 | { | |
291 | int box_middle_x, box_middle_y; | |
292 | unsigned int x_map, y_map; | |
293 | unsigned char start_bit, end_bit; | |
294 | unsigned char x_msb, x_lsb, y_msb, y_lsb; | |
295 | ||
296 | x_map = fields->x_map; | |
297 | y_map = fields->y_map; | |
298 | ||
299 | if (!x_map || !y_map) | |
300 | return; | |
301 | ||
302 | /* Get Most-significant and Least-significant bit */ | |
303 | x_msb = fls(x_map); | |
304 | x_lsb = ffs(x_map); | |
305 | y_msb = fls(y_map); | |
306 | y_lsb = ffs(y_map); | |
307 | ||
308 | /* Most-significant bit should never exceed max sensor line number */ | |
309 | if (x_msb > priv->x_bits || y_msb > priv->y_bits) | |
310 | return; | |
311 | ||
312 | *x1 = *y1 = *x2 = *y2 = 0; | |
313 | ||
314 | if (fields->fingers > 1) { | |
315 | start_bit = priv->x_bits - x_msb; | |
316 | end_bit = priv->x_bits - x_lsb; | |
317 | box_middle_x = (priv->x_max * (start_bit + end_bit)) / | |
318 | (2 * (priv->x_bits - 1)); | |
319 | ||
320 | start_bit = y_lsb - 1; | |
321 | end_bit = y_msb - 1; | |
322 | box_middle_y = (priv->y_max * (start_bit + end_bit)) / | |
323 | (2 * (priv->y_bits - 1)); | |
324 | *x1 = fields->x; | |
325 | *y1 = fields->y; | |
326 | *x2 = 2 * box_middle_x - *x1; | |
327 | *y2 = 2 * box_middle_y - *y1; | |
328 | } | |
329 | } | |
330 | ||
036e6c7b HG |
331 | static void alps_get_bitmap_points(unsigned int map, |
332 | struct alps_bitmap_point *low, | |
333 | struct alps_bitmap_point *high, | |
334 | int *fingers) | |
335 | { | |
336 | struct alps_bitmap_point *point; | |
337 | int i, bit, prev_bit = 0; | |
338 | ||
339 | point = low; | |
340 | for (i = 0; map != 0; i++, map >>= 1) { | |
341 | bit = map & 1; | |
342 | if (bit) { | |
343 | if (!prev_bit) { | |
344 | point->start_bit = i; | |
105affbf | 345 | point->num_bits = 0; |
036e6c7b HG |
346 | (*fingers)++; |
347 | } | |
348 | point->num_bits++; | |
349 | } else { | |
350 | if (prev_bit) | |
351 | point = high; | |
036e6c7b HG |
352 | } |
353 | prev_bit = bit; | |
354 | } | |
355 | } | |
356 | ||
01ce661f SF |
357 | /* |
358 | * Process bitmap data from v3 and v4 protocols. Returns the number of | |
359 | * fingers detected. A return value of 0 means at least one of the | |
360 | * bitmaps was empty. | |
361 | * | |
362 | * The bitmaps don't have enough data to track fingers, so this function | |
363 | * only generates points representing a bounding box of all contacts. | |
364 | * These points are returned in x1, y1, x2, and y2 when the return value | |
365 | * is greater than 0. | |
366 | */ | |
7a9f73e7 KC |
367 | static int alps_process_bitmap(struct alps_data *priv, |
368 | unsigned int x_map, unsigned int y_map, | |
01ce661f SF |
369 | int *x1, int *y1, int *x2, int *y2) |
370 | { | |
036e6c7b | 371 | int i, fingers_x = 0, fingers_y = 0, fingers; |
01ce661f SF |
372 | struct alps_bitmap_point x_low = {0,}, x_high = {0,}; |
373 | struct alps_bitmap_point y_low = {0,}, y_high = {0,}; | |
01ce661f SF |
374 | |
375 | if (!x_map || !y_map) | |
376 | return 0; | |
377 | ||
378 | *x1 = *y1 = *x2 = *y2 = 0; | |
379 | ||
036e6c7b HG |
380 | alps_get_bitmap_points(x_map, &x_low, &x_high, &fingers_x); |
381 | alps_get_bitmap_points(y_map, &y_low, &y_high, &fingers_y); | |
01ce661f SF |
382 | |
383 | /* | |
384 | * Fingers can overlap, so we use the maximum count of fingers | |
385 | * on either axis as the finger count. | |
386 | */ | |
387 | fingers = max(fingers_x, fingers_y); | |
388 | ||
389 | /* | |
20bea68b HG |
390 | * If an axis reports only a single contact, we have overlapping or |
391 | * adjacent fingers. Divide the single contact between the two points. | |
01ce661f | 392 | */ |
20bea68b HG |
393 | if (fingers_x == 1) { |
394 | i = x_low.num_bits / 2; | |
395 | x_low.num_bits = x_low.num_bits - i; | |
396 | x_high.start_bit = x_low.start_bit + i; | |
397 | x_high.num_bits = max(i, 1); | |
398 | } | |
399 | if (fingers_y == 1) { | |
400 | i = y_low.num_bits / 2; | |
401 | y_low.num_bits = y_low.num_bits - i; | |
402 | y_high.start_bit = y_low.start_bit + i; | |
403 | y_high.num_bits = max(i, 1); | |
01ce661f SF |
404 | } |
405 | ||
7a9f73e7 KC |
406 | *x1 = (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / |
407 | (2 * (priv->x_bits - 1)); | |
408 | *y1 = (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / | |
409 | (2 * (priv->y_bits - 1)); | |
01ce661f | 410 | |
20bea68b HG |
411 | *x2 = (priv->x_max * |
412 | (2 * x_high.start_bit + x_high.num_bits - 1)) / | |
413 | (2 * (priv->x_bits - 1)); | |
414 | *y2 = (priv->y_max * | |
415 | (2 * y_high.start_bit + y_high.num_bits - 1)) / | |
416 | (2 * (priv->y_bits - 1)); | |
01ce661f | 417 | |
40e8f53b HG |
418 | /* y-bitmap order is reversed, except on rushmore */ |
419 | if (!(priv->flags & ALPS_IS_RUSHMORE)) { | |
420 | *y1 = priv->y_max - *y1; | |
421 | *y2 = priv->y_max - *y2; | |
422 | } | |
423 | ||
01ce661f SF |
424 | return fingers; |
425 | } | |
426 | ||
427 | static void alps_set_slot(struct input_dev *dev, int slot, bool active, | |
428 | int x, int y) | |
429 | { | |
430 | input_mt_slot(dev, slot); | |
431 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
432 | if (active) { | |
433 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
434 | input_report_abs(dev, ABS_MT_POSITION_Y, y); | |
435 | } | |
436 | } | |
437 | ||
438 | static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers, | |
439 | int x1, int y1, int x2, int y2) | |
440 | { | |
441 | alps_set_slot(dev, 0, num_fingers != 0, x1, y1); | |
442 | alps_set_slot(dev, 1, num_fingers == 2, x2, y2); | |
443 | } | |
444 | ||
25bded7c SF |
445 | static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) |
446 | { | |
447 | struct alps_data *priv = psmouse->private; | |
448 | unsigned char *packet = psmouse->packet; | |
449 | struct input_dev *dev = priv->dev2; | |
450 | int x, y, z, left, right, middle; | |
451 | ||
452 | /* Sanity check packet */ | |
453 | if (!(packet[0] & 0x40)) { | |
454 | psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); | |
455 | return; | |
456 | } | |
457 | ||
458 | /* | |
459 | * There's a special packet that seems to indicate the end | |
460 | * of a stream of trackstick data. Filter these out. | |
461 | */ | |
462 | if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) | |
463 | return; | |
464 | ||
465 | x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); | |
466 | y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); | |
467 | z = (packet[4] & 0x7c) >> 2; | |
468 | ||
469 | /* | |
470 | * The x and y values tend to be quite large, and when used | |
471 | * alone the trackstick is difficult to use. Scale them down | |
472 | * to compensate. | |
473 | */ | |
474 | x /= 8; | |
475 | y /= 8; | |
476 | ||
477 | input_report_rel(dev, REL_X, x); | |
478 | input_report_rel(dev, REL_Y, -y); | |
479 | ||
480 | /* | |
481 | * Most ALPS models report the trackstick buttons in the touchpad | |
482 | * packets, but a few report them here. No reliable way has been | |
483 | * found to differentiate between the models upfront, so we enable | |
484 | * the quirk in response to seeing a button press in the trackstick | |
485 | * packet. | |
486 | */ | |
487 | left = packet[3] & 0x01; | |
488 | right = packet[3] & 0x02; | |
489 | middle = packet[3] & 0x04; | |
490 | ||
491 | if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && | |
492 | (left || right || middle)) | |
493 | priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; | |
494 | ||
495 | if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { | |
496 | input_report_key(dev, BTN_LEFT, left); | |
497 | input_report_key(dev, BTN_RIGHT, right); | |
498 | input_report_key(dev, BTN_MIDDLE, middle); | |
499 | } | |
500 | ||
501 | input_sync(dev); | |
502 | return; | |
503 | } | |
504 | ||
f85e5001 KC |
505 | static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) |
506 | { | |
507 | f->left = !!(p[3] & 0x01); | |
508 | f->right = !!(p[3] & 0x02); | |
509 | f->middle = !!(p[3] & 0x04); | |
510 | ||
511 | f->ts_left = !!(p[3] & 0x10); | |
512 | f->ts_right = !!(p[3] & 0x20); | |
513 | f->ts_middle = !!(p[3] & 0x40); | |
514 | } | |
515 | ||
ee65d4b3 YT |
516 | static void alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, |
517 | struct psmouse *psmouse) | |
f85e5001 KC |
518 | { |
519 | f->first_mp = !!(p[4] & 0x40); | |
520 | f->is_mp = !!(p[0] & 0x40); | |
521 | ||
522 | f->fingers = (p[5] & 0x3) + 1; | |
523 | f->x_map = ((p[4] & 0x7e) << 8) | | |
524 | ((p[1] & 0x7f) << 2) | | |
525 | ((p[0] & 0x30) >> 4); | |
526 | f->y_map = ((p[3] & 0x70) << 4) | | |
527 | ((p[2] & 0x7f) << 1) | | |
528 | (p[4] & 0x01); | |
529 | ||
530 | f->x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | | |
531 | ((p[0] & 0x30) >> 4); | |
532 | f->y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); | |
533 | f->z = p[5] & 0x7f; | |
534 | ||
535 | alps_decode_buttons_v3(f, p); | |
536 | } | |
537 | ||
ee65d4b3 YT |
538 | static void alps_decode_rushmore(struct alps_fields *f, unsigned char *p, |
539 | struct psmouse *psmouse) | |
1302bac3 | 540 | { |
ee65d4b3 | 541 | alps_decode_pinnacle(f, p, psmouse); |
1302bac3 | 542 | |
f105e34a YT |
543 | /* Rushmore's packet decode has a bit difference with Pinnacle's */ |
544 | f->is_mp = !!(p[5] & 0x40); | |
545 | f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; | |
1302bac3 KC |
546 | f->x_map |= (p[5] & 0x10) << 11; |
547 | f->y_map |= (p[5] & 0x20) << 6; | |
548 | } | |
549 | ||
ee65d4b3 YT |
550 | static void alps_decode_dolphin(struct alps_fields *f, unsigned char *p, |
551 | struct psmouse *psmouse) | |
75af9e56 | 552 | { |
ee65d4b3 YT |
553 | u64 palm_data = 0; |
554 | struct alps_data *priv = psmouse->private; | |
555 | ||
75af9e56 DT |
556 | f->first_mp = !!(p[0] & 0x02); |
557 | f->is_mp = !!(p[0] & 0x20); | |
558 | ||
ee65d4b3 YT |
559 | if (!f->is_mp) { |
560 | f->x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); | |
561 | f->y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); | |
562 | f->z = (p[0] & 4) ? 0 : p[5] & 0x7f; | |
563 | alps_decode_buttons_v3(f, p); | |
564 | } else { | |
565 | f->fingers = ((p[0] & 0x6) >> 1 | | |
75af9e56 | 566 | (p[0] & 0x10) >> 2); |
75af9e56 | 567 | |
ee65d4b3 YT |
568 | palm_data = (p[1] & 0x7f) | |
569 | ((p[2] & 0x7f) << 7) | | |
570 | ((p[4] & 0x7f) << 14) | | |
571 | ((p[5] & 0x7f) << 21) | | |
572 | ((p[3] & 0x07) << 28) | | |
573 | (((u64)p[3] & 0x70) << 27) | | |
574 | (((u64)p[0] & 0x01) << 34); | |
575 | ||
576 | /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ | |
577 | f->y_map = palm_data & (BIT(priv->y_bits) - 1); | |
578 | ||
579 | /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ | |
580 | f->x_map = (palm_data >> priv->y_bits) & | |
581 | (BIT(priv->x_bits) - 1); | |
582 | } | |
75af9e56 DT |
583 | } |
584 | ||
ee65d4b3 | 585 | static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) |
25bded7c SF |
586 | { |
587 | struct alps_data *priv = psmouse->private; | |
588 | unsigned char *packet = psmouse->packet; | |
589 | struct input_dev *dev = psmouse->dev; | |
590 | struct input_dev *dev2 = priv->dev2; | |
20bea68b | 591 | int x1 = 0, y1 = 0, x2 = 0, y2 = 0, fingers = 0; |
ee65d4b3 | 592 | struct alps_fields f = {0}; |
f85e5001 | 593 | |
ee65d4b3 | 594 | priv->decode_fields(&f, packet, psmouse); |
25bded7c SF |
595 | |
596 | /* | |
01ce661f SF |
597 | * There's no single feature of touchpad position and bitmap packets |
598 | * that can be used to distinguish between them. We rely on the fact | |
599 | * that a bitmap packet should always follow a position packet with | |
600 | * bit 6 of packet[4] set. | |
25bded7c SF |
601 | */ |
602 | if (priv->multi_packet) { | |
25bded7c SF |
603 | /* |
604 | * Sometimes a position packet will indicate a multi-packet | |
605 | * sequence, but then what follows is another position | |
606 | * packet. Check for this, and when it happens process the | |
607 | * position packet as usual. | |
608 | */ | |
f85e5001 KC |
609 | if (f.is_mp) { |
610 | fingers = f.fingers; | |
ee65d4b3 | 611 | if (priv->proto_version == ALPS_PROTO_V3) { |
20bea68b HG |
612 | if (alps_process_bitmap(priv, f.x_map, |
613 | f.y_map, &x1, &y1, | |
614 | &x2, &y2) == 0) | |
615 | fingers = 0; /* Use st data */ | |
ee65d4b3 YT |
616 | |
617 | /* Now process position packet */ | |
618 | priv->decode_fields(&f, priv->multi_data, | |
619 | psmouse); | |
620 | } else { | |
621 | /* | |
622 | * Because Dolphin uses position packet's | |
623 | * coordinate data as Pt1 and uses it to | |
624 | * calculate Pt2, so we need to do position | |
625 | * packet decode first. | |
626 | */ | |
627 | priv->decode_fields(&f, priv->multi_data, | |
628 | psmouse); | |
629 | ||
630 | /* | |
631 | * Since Dolphin's finger number is reliable, | |
632 | * there is no need to compare with bmap_fn. | |
633 | */ | |
634 | alps_process_bitmap_dolphin(priv, &f, &x1, &y1, | |
635 | &x2, &y2); | |
636 | } | |
01ce661f SF |
637 | } else { |
638 | priv->multi_packet = 0; | |
25bded7c SF |
639 | } |
640 | } | |
641 | ||
01ce661f SF |
642 | /* |
643 | * Bit 6 of byte 0 is not usually set in position packets. The only | |
644 | * times it seems to be set is in situations where the data is | |
645 | * suspect anyway, e.g. a palm resting flat on the touchpad. Given | |
646 | * this combined with the fact that this bit is useful for filtering | |
647 | * out misidentified bitmap packets, we reject anything with this | |
648 | * bit set. | |
649 | */ | |
f85e5001 | 650 | if (f.is_mp) |
01ce661f SF |
651 | return; |
652 | ||
f85e5001 | 653 | if (!priv->multi_packet && f.first_mp) { |
25bded7c | 654 | priv->multi_packet = 1; |
01ce661f SF |
655 | memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); |
656 | return; | |
657 | } | |
658 | ||
659 | priv->multi_packet = 0; | |
25bded7c | 660 | |
25bded7c SF |
661 | /* |
662 | * Sometimes the hardware sends a single packet with z = 0 | |
663 | * in the middle of a stream. Real releases generate packets | |
664 | * with x, y, and z all zero, so these seem to be flukes. | |
665 | * Ignore them. | |
666 | */ | |
f85e5001 | 667 | if (f.x && f.y && !f.z) |
25bded7c SF |
668 | return; |
669 | ||
01ce661f SF |
670 | /* |
671 | * If we don't have MT data or the bitmaps were empty, we have | |
672 | * to rely on ST data. | |
673 | */ | |
674 | if (!fingers) { | |
f85e5001 KC |
675 | x1 = f.x; |
676 | y1 = f.y; | |
677 | fingers = f.z > 0 ? 1 : 0; | |
01ce661f SF |
678 | } |
679 | ||
f85e5001 | 680 | if (f.z >= 64) |
25bded7c SF |
681 | input_report_key(dev, BTN_TOUCH, 1); |
682 | else | |
683 | input_report_key(dev, BTN_TOUCH, 0); | |
684 | ||
01ce661f SF |
685 | alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); |
686 | ||
616575c2 | 687 | input_mt_report_finger_count(dev, fingers); |
01ce661f | 688 | |
f85e5001 KC |
689 | input_report_key(dev, BTN_LEFT, f.left); |
690 | input_report_key(dev, BTN_RIGHT, f.right); | |
691 | input_report_key(dev, BTN_MIDDLE, f.middle); | |
01ce661f | 692 | |
f85e5001 KC |
693 | if (f.z > 0) { |
694 | input_report_abs(dev, ABS_X, f.x); | |
695 | input_report_abs(dev, ABS_Y, f.y); | |
25bded7c | 696 | } |
f85e5001 | 697 | input_report_abs(dev, ABS_PRESSURE, f.z); |
25bded7c | 698 | |
25bded7c SF |
699 | input_sync(dev); |
700 | ||
701 | if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { | |
f85e5001 KC |
702 | input_report_key(dev2, BTN_LEFT, f.ts_left); |
703 | input_report_key(dev2, BTN_RIGHT, f.ts_right); | |
704 | input_report_key(dev2, BTN_MIDDLE, f.ts_middle); | |
25bded7c SF |
705 | input_sync(dev2); |
706 | } | |
707 | } | |
708 | ||
709 | static void alps_process_packet_v3(struct psmouse *psmouse) | |
710 | { | |
711 | unsigned char *packet = psmouse->packet; | |
712 | ||
713 | /* | |
714 | * v3 protocol packets come in three types, two representing | |
715 | * touchpad data and one representing trackstick data. | |
716 | * Trackstick packets seem to be distinguished by always | |
717 | * having 0x3f in the last byte. This value has never been | |
718 | * observed in the last byte of either of the other types | |
719 | * of packets. | |
720 | */ | |
721 | if (packet[5] == 0x3f) { | |
722 | alps_process_trackstick_packet_v3(psmouse); | |
723 | return; | |
724 | } | |
725 | ||
ee65d4b3 | 726 | alps_process_touchpad_packet_v3_v5(psmouse); |
25bded7c SF |
727 | } |
728 | ||
95f75e91 YT |
729 | static void alps_process_packet_v6(struct psmouse *psmouse) |
730 | { | |
731 | struct alps_data *priv = psmouse->private; | |
732 | unsigned char *packet = psmouse->packet; | |
733 | struct input_dev *dev = psmouse->dev; | |
734 | struct input_dev *dev2 = priv->dev2; | |
735 | int x, y, z, left, right, middle; | |
736 | ||
737 | /* | |
738 | * We can use Byte5 to distinguish if the packet is from Touchpad | |
739 | * or Trackpoint. | |
740 | * Touchpad: 0 - 0x7E | |
741 | * Trackpoint: 0x7F | |
742 | */ | |
743 | if (packet[5] == 0x7F) { | |
744 | /* It should be a DualPoint when received Trackpoint packet */ | |
745 | if (!(priv->flags & ALPS_DUALPOINT)) | |
746 | return; | |
747 | ||
748 | /* Trackpoint packet */ | |
749 | x = packet[1] | ((packet[3] & 0x20) << 2); | |
750 | y = packet[2] | ((packet[3] & 0x40) << 1); | |
751 | z = packet[4]; | |
752 | left = packet[3] & 0x01; | |
753 | right = packet[3] & 0x02; | |
754 | middle = packet[3] & 0x04; | |
755 | ||
756 | /* To prevent the cursor jump when finger lifted */ | |
757 | if (x == 0x7F && y == 0x7F && z == 0x7F) | |
758 | x = y = z = 0; | |
759 | ||
760 | /* Divide 4 since trackpoint's speed is too fast */ | |
761 | input_report_rel(dev2, REL_X, (char)x / 4); | |
762 | input_report_rel(dev2, REL_Y, -((char)y / 4)); | |
763 | ||
764 | input_report_key(dev2, BTN_LEFT, left); | |
765 | input_report_key(dev2, BTN_RIGHT, right); | |
766 | input_report_key(dev2, BTN_MIDDLE, middle); | |
767 | ||
768 | input_sync(dev2); | |
769 | return; | |
770 | } | |
771 | ||
772 | /* Touchpad packet */ | |
773 | x = packet[1] | ((packet[3] & 0x78) << 4); | |
774 | y = packet[2] | ((packet[4] & 0x78) << 4); | |
775 | z = packet[5]; | |
776 | left = packet[3] & 0x01; | |
777 | right = packet[3] & 0x02; | |
778 | ||
779 | if (z > 30) | |
780 | input_report_key(dev, BTN_TOUCH, 1); | |
781 | if (z < 25) | |
782 | input_report_key(dev, BTN_TOUCH, 0); | |
783 | ||
784 | if (z > 0) { | |
785 | input_report_abs(dev, ABS_X, x); | |
786 | input_report_abs(dev, ABS_Y, y); | |
787 | } | |
788 | ||
789 | input_report_abs(dev, ABS_PRESSURE, z); | |
790 | input_report_key(dev, BTN_TOOL_FINGER, z > 0); | |
791 | ||
792 | /* v6 touchpad does not have middle button */ | |
793 | input_report_key(dev, BTN_LEFT, left); | |
794 | input_report_key(dev, BTN_RIGHT, right); | |
795 | ||
796 | input_sync(dev); | |
797 | } | |
798 | ||
25bded7c SF |
799 | static void alps_process_packet_v4(struct psmouse *psmouse) |
800 | { | |
3b7e09fa | 801 | struct alps_data *priv = psmouse->private; |
25bded7c SF |
802 | unsigned char *packet = psmouse->packet; |
803 | struct input_dev *dev = psmouse->dev; | |
3b7e09fa | 804 | int offset; |
25bded7c SF |
805 | int x, y, z; |
806 | int left, right; | |
3b7e09fa GP |
807 | int x1, y1, x2, y2; |
808 | int fingers = 0; | |
809 | unsigned int x_bitmap, y_bitmap; | |
810 | ||
811 | /* | |
812 | * v4 has a 6-byte encoding for bitmap data, but this data is | |
813 | * broken up between 3 normal packets. Use priv->multi_packet to | |
814 | * track our position in the bitmap packet. | |
815 | */ | |
816 | if (packet[6] & 0x40) { | |
817 | /* sync, reset position */ | |
818 | priv->multi_packet = 0; | |
819 | } | |
820 | ||
821 | if (WARN_ON_ONCE(priv->multi_packet > 2)) | |
822 | return; | |
823 | ||
824 | offset = 2 * priv->multi_packet; | |
825 | priv->multi_data[offset] = packet[6]; | |
826 | priv->multi_data[offset + 1] = packet[7]; | |
827 | ||
828 | if (++priv->multi_packet > 2) { | |
829 | priv->multi_packet = 0; | |
830 | ||
831 | x_bitmap = ((priv->multi_data[2] & 0x1f) << 10) | | |
832 | ((priv->multi_data[3] & 0x60) << 3) | | |
833 | ((priv->multi_data[0] & 0x3f) << 2) | | |
834 | ((priv->multi_data[1] & 0x60) >> 5); | |
835 | y_bitmap = ((priv->multi_data[5] & 0x01) << 10) | | |
836 | ((priv->multi_data[3] & 0x1f) << 5) | | |
837 | (priv->multi_data[1] & 0x1f); | |
838 | ||
7a9f73e7 | 839 | fingers = alps_process_bitmap(priv, x_bitmap, y_bitmap, |
3b7e09fa GP |
840 | &x1, &y1, &x2, &y2); |
841 | ||
842 | /* Store MT data.*/ | |
843 | priv->fingers = fingers; | |
844 | priv->x1 = x1; | |
845 | priv->x2 = x2; | |
846 | priv->y1 = y1; | |
847 | priv->y2 = y2; | |
848 | } | |
25bded7c SF |
849 | |
850 | left = packet[4] & 0x01; | |
851 | right = packet[4] & 0x02; | |
852 | ||
853 | x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | | |
854 | ((packet[0] & 0x30) >> 4); | |
855 | y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); | |
856 | z = packet[5] & 0x7f; | |
857 | ||
3b7e09fa GP |
858 | /* |
859 | * If there were no contacts in the bitmap, use ST | |
860 | * points in MT reports. | |
861 | * If there were two contacts or more, report MT data. | |
862 | */ | |
863 | if (priv->fingers < 2) { | |
864 | x1 = x; | |
865 | y1 = y; | |
866 | fingers = z > 0 ? 1 : 0; | |
867 | } else { | |
868 | fingers = priv->fingers; | |
869 | x1 = priv->x1; | |
870 | x2 = priv->x2; | |
871 | y1 = priv->y1; | |
872 | y2 = priv->y2; | |
873 | } | |
874 | ||
25bded7c SF |
875 | if (z >= 64) |
876 | input_report_key(dev, BTN_TOUCH, 1); | |
877 | else | |
878 | input_report_key(dev, BTN_TOUCH, 0); | |
879 | ||
3b7e09fa GP |
880 | alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); |
881 | ||
616575c2 | 882 | input_mt_report_finger_count(dev, fingers); |
3b7e09fa GP |
883 | |
884 | input_report_key(dev, BTN_LEFT, left); | |
885 | input_report_key(dev, BTN_RIGHT, right); | |
886 | ||
25bded7c SF |
887 | if (z > 0) { |
888 | input_report_abs(dev, ABS_X, x); | |
889 | input_report_abs(dev, ABS_Y, y); | |
890 | } | |
891 | input_report_abs(dev, ABS_PRESSURE, z); | |
892 | ||
25bded7c SF |
893 | input_sync(dev); |
894 | } | |
895 | ||
1d9f2626 SK |
896 | static void alps_report_bare_ps2_packet(struct psmouse *psmouse, |
897 | unsigned char packet[], | |
898 | bool report_buttons) | |
899 | { | |
900 | struct alps_data *priv = psmouse->private; | |
901 | struct input_dev *dev2 = priv->dev2; | |
902 | ||
903 | if (report_buttons) | |
904 | alps_report_buttons(psmouse, dev2, psmouse->dev, | |
905 | packet[0] & 1, packet[0] & 2, packet[0] & 4); | |
906 | ||
907 | input_report_rel(dev2, REL_X, | |
908 | packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); | |
909 | input_report_rel(dev2, REL_Y, | |
910 | packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); | |
911 | ||
912 | input_sync(dev2); | |
913 | } | |
914 | ||
915 | static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) | |
916 | { | |
917 | struct alps_data *priv = psmouse->private; | |
918 | ||
919 | if (psmouse->pktcnt < 6) | |
920 | return PSMOUSE_GOOD_DATA; | |
921 | ||
922 | if (psmouse->pktcnt == 6) { | |
923 | /* | |
924 | * Start a timer to flush the packet if it ends up last | |
925 | * 6-byte packet in the stream. Timer needs to fire | |
926 | * psmouse core times out itself. 20 ms should be enough | |
927 | * to decide if we are getting more data or not. | |
928 | */ | |
929 | mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); | |
930 | return PSMOUSE_GOOD_DATA; | |
931 | } | |
932 | ||
933 | del_timer(&priv->timer); | |
934 | ||
935 | if (psmouse->packet[6] & 0x80) { | |
936 | ||
937 | /* | |
938 | * Highest bit is set - that means we either had | |
939 | * complete ALPS packet and this is start of the | |
940 | * next packet or we got garbage. | |
941 | */ | |
942 | ||
943 | if (((psmouse->packet[3] | | |
944 | psmouse->packet[4] | | |
945 | psmouse->packet[5]) & 0x80) || | |
99df65e7 | 946 | (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { |
b5d21704 | 947 | psmouse_dbg(psmouse, |
3b112923 AS |
948 | "refusing packet %4ph (suspected interleaved ps/2)\n", |
949 | psmouse->packet + 3); | |
1d9f2626 SK |
950 | return PSMOUSE_BAD_DATA; |
951 | } | |
952 | ||
24af5cb9 | 953 | priv->process_packet(psmouse); |
1d9f2626 SK |
954 | |
955 | /* Continue with the next packet */ | |
956 | psmouse->packet[0] = psmouse->packet[6]; | |
957 | psmouse->pktcnt = 1; | |
958 | ||
959 | } else { | |
960 | ||
961 | /* | |
962 | * High bit is 0 - that means that we indeed got a PS/2 | |
963 | * packet in the middle of ALPS packet. | |
964 | * | |
965 | * There is also possibility that we got 6-byte ALPS | |
966 | * packet followed by 3-byte packet from trackpoint. We | |
967 | * can not distinguish between these 2 scenarios but | |
b5d21704 | 968 | * because the latter is unlikely to happen in course of |
1d9f2626 SK |
969 | * normal operation (user would need to press all |
970 | * buttons on the pad and start moving trackpoint | |
971 | * without touching the pad surface) we assume former. | |
972 | * Even if we are wrong the wost thing that would happen | |
973 | * the cursor would jump but we should not get protocol | |
b5d21704 | 974 | * de-synchronization. |
1d9f2626 SK |
975 | */ |
976 | ||
977 | alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], | |
978 | false); | |
979 | ||
980 | /* | |
981 | * Continue with the standard ALPS protocol handling, | |
982 | * but make sure we won't process it as an interleaved | |
983 | * packet again, which may happen if all buttons are | |
984 | * pressed. To avoid this let's reset the 4th bit which | |
985 | * is normally 1. | |
986 | */ | |
987 | psmouse->packet[3] = psmouse->packet[6] & 0xf7; | |
988 | psmouse->pktcnt = 4; | |
989 | } | |
990 | ||
991 | return PSMOUSE_GOOD_DATA; | |
992 | } | |
993 | ||
994 | static void alps_flush_packet(unsigned long data) | |
995 | { | |
996 | struct psmouse *psmouse = (struct psmouse *)data; | |
24af5cb9 | 997 | struct alps_data *priv = psmouse->private; |
1d9f2626 SK |
998 | |
999 | serio_pause_rx(psmouse->ps2dev.serio); | |
1000 | ||
b46615fe | 1001 | if (psmouse->pktcnt == psmouse->pktsize) { |
1d9f2626 SK |
1002 | |
1003 | /* | |
1004 | * We did not any more data in reasonable amount of time. | |
1005 | * Validate the last 3 bytes and process as a standard | |
1006 | * ALPS packet. | |
1007 | */ | |
1008 | if ((psmouse->packet[3] | | |
1009 | psmouse->packet[4] | | |
1010 | psmouse->packet[5]) & 0x80) { | |
b5d21704 | 1011 | psmouse_dbg(psmouse, |
3b112923 AS |
1012 | "refusing packet %3ph (suspected interleaved ps/2)\n", |
1013 | psmouse->packet + 3); | |
1d9f2626 | 1014 | } else { |
24af5cb9 | 1015 | priv->process_packet(psmouse); |
1d9f2626 SK |
1016 | } |
1017 | psmouse->pktcnt = 0; | |
1018 | } | |
1019 | ||
1020 | serio_continue_rx(psmouse->ps2dev.serio); | |
1021 | } | |
1022 | ||
7d12e780 | 1023 | static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) |
1da177e4 LT |
1024 | { |
1025 | struct alps_data *priv = psmouse->private; | |
1026 | ||
1027 | if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ | |
1028 | if (psmouse->pktcnt == 3) { | |
1d9f2626 SK |
1029 | alps_report_bare_ps2_packet(psmouse, psmouse->packet, |
1030 | true); | |
1da177e4 LT |
1031 | return PSMOUSE_FULL_PACKET; |
1032 | } | |
1033 | return PSMOUSE_GOOD_DATA; | |
1034 | } | |
1035 | ||
1d9f2626 SK |
1036 | /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ |
1037 | ||
99df65e7 | 1038 | if ((priv->flags & ALPS_PS2_INTERLEAVED) && |
1d9f2626 SK |
1039 | psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { |
1040 | return alps_handle_interleaved_ps2(psmouse); | |
1041 | } | |
1042 | ||
99df65e7 | 1043 | if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { |
b5d21704 DT |
1044 | psmouse_dbg(psmouse, |
1045 | "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", | |
99df65e7 | 1046 | psmouse->packet[0], priv->mask0, priv->byte0); |
1da177e4 | 1047 | return PSMOUSE_BAD_DATA; |
1d9f2626 | 1048 | } |
1da177e4 | 1049 | |
b46615fe | 1050 | /* Bytes 2 - pktsize should have 0 in the highest bit */ |
95f75e91 | 1051 | if ((priv->proto_version < ALPS_PROTO_V5) && |
75af9e56 | 1052 | psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && |
1d9f2626 | 1053 | (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { |
b5d21704 DT |
1054 | psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", |
1055 | psmouse->pktcnt - 1, | |
1056 | psmouse->packet[psmouse->pktcnt - 1]); | |
1da177e4 | 1057 | return PSMOUSE_BAD_DATA; |
1d9f2626 | 1058 | } |
1da177e4 | 1059 | |
b46615fe | 1060 | if (psmouse->pktcnt == psmouse->pktsize) { |
24af5cb9 | 1061 | priv->process_packet(psmouse); |
1da177e4 LT |
1062 | return PSMOUSE_FULL_PACKET; |
1063 | } | |
1064 | ||
1065 | return PSMOUSE_GOOD_DATA; | |
1066 | } | |
1067 | ||
25bded7c SF |
1068 | static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) |
1069 | { | |
1070 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1071 | struct alps_data *priv = psmouse->private; | |
1072 | int command; | |
1073 | unsigned char *param; | |
1074 | unsigned char dummy[4]; | |
1075 | ||
1076 | BUG_ON(nibble > 0xf); | |
1077 | ||
1078 | command = priv->nibble_commands[nibble].command; | |
1079 | param = (command & 0x0f00) ? | |
1080 | dummy : (unsigned char *)&priv->nibble_commands[nibble].data; | |
1081 | ||
1082 | if (ps2_command(ps2dev, param, command)) | |
1083 | return -1; | |
1084 | ||
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) | |
1089 | { | |
1090 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1091 | struct alps_data *priv = psmouse->private; | |
1092 | int i, nibble; | |
1093 | ||
1094 | if (ps2_command(ps2dev, NULL, priv->addr_command)) | |
1095 | return -1; | |
1096 | ||
1097 | for (i = 12; i >= 0; i -= 4) { | |
1098 | nibble = (addr >> i) & 0xf; | |
1099 | if (alps_command_mode_send_nibble(psmouse, nibble)) | |
1100 | return -1; | |
1101 | } | |
1102 | ||
1103 | return 0; | |
1104 | } | |
1105 | ||
1106 | static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) | |
1107 | { | |
1108 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1109 | unsigned char param[4]; | |
1110 | ||
1111 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
1112 | return -1; | |
1113 | ||
1114 | /* | |
1115 | * The address being read is returned in the first two bytes | |
1116 | * of the result. Check that this address matches the expected | |
1117 | * address. | |
1118 | */ | |
1119 | if (addr != ((param[0] << 8) | param[1])) | |
1120 | return -1; | |
1121 | ||
1122 | return param[2]; | |
1123 | } | |
1124 | ||
1125 | static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) | |
1126 | { | |
1127 | if (alps_command_mode_set_addr(psmouse, addr)) | |
1128 | return -1; | |
1129 | return __alps_command_mode_read_reg(psmouse, addr); | |
1130 | } | |
1131 | ||
1132 | static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) | |
1133 | { | |
1134 | if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) | |
1135 | return -1; | |
1136 | if (alps_command_mode_send_nibble(psmouse, value & 0xf)) | |
1137 | return -1; | |
1138 | return 0; | |
1139 | } | |
1140 | ||
1141 | static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, | |
1142 | u8 value) | |
1143 | { | |
1144 | if (alps_command_mode_set_addr(psmouse, addr)) | |
1145 | return -1; | |
1146 | return __alps_command_mode_write_reg(psmouse, value); | |
1147 | } | |
1148 | ||
24ba9707 KC |
1149 | static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, |
1150 | int repeated_command, unsigned char *param) | |
1151 | { | |
1152 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1153 | ||
1154 | param[0] = 0; | |
1155 | if (init_command && ps2_command(ps2dev, param, init_command)) | |
1156 | return -EIO; | |
1157 | ||
1158 | if (ps2_command(ps2dev, NULL, repeated_command) || | |
1159 | ps2_command(ps2dev, NULL, repeated_command) || | |
1160 | ps2_command(ps2dev, NULL, repeated_command)) | |
1161 | return -EIO; | |
1162 | ||
1163 | param[0] = param[1] = param[2] = 0xff; | |
1164 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
1165 | return -EIO; | |
1166 | ||
39fbe585 DT |
1167 | psmouse_dbg(psmouse, "%2.2X report: %3ph\n", |
1168 | repeated_command, param); | |
24ba9707 KC |
1169 | return 0; |
1170 | } | |
1171 | ||
d18e53fc | 1172 | static int alps_enter_command_mode(struct psmouse *psmouse) |
25bded7c SF |
1173 | { |
1174 | unsigned char param[4]; | |
25bded7c | 1175 | |
24ba9707 | 1176 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { |
25bded7c SF |
1177 | psmouse_err(psmouse, "failed to enter command mode\n"); |
1178 | return -1; | |
1179 | } | |
1180 | ||
75af9e56 DT |
1181 | if ((param[0] != 0x88 || (param[1] != 0x07 && param[1] != 0x08)) && |
1182 | param[0] != 0x73) { | |
25bded7c | 1183 | psmouse_dbg(psmouse, |
24ba9707 | 1184 | "unknown response while entering command mode\n"); |
25bded7c SF |
1185 | return -1; |
1186 | } | |
25bded7c SF |
1187 | return 0; |
1188 | } | |
1189 | ||
1190 | static inline int alps_exit_command_mode(struct psmouse *psmouse) | |
1191 | { | |
1192 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1193 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) | |
1194 | return -1; | |
1195 | return 0; | |
1196 | } | |
1197 | ||
1da177e4 LT |
1198 | /* |
1199 | * For DualPoint devices select the device that should respond to | |
1200 | * subsequent commands. It looks like glidepad is behind stickpointer, | |
1201 | * I'd thought it would be other way around... | |
1202 | */ | |
25bded7c | 1203 | static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) |
1da177e4 LT |
1204 | { |
1205 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1da177e4 LT |
1206 | int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; |
1207 | ||
1208 | if (ps2_command(ps2dev, NULL, cmd) || | |
1209 | ps2_command(ps2dev, NULL, cmd) || | |
1210 | ps2_command(ps2dev, NULL, cmd) || | |
1211 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) | |
1212 | return -1; | |
1213 | ||
1214 | /* we may get 3 more bytes, just ignore them */ | |
c611763d | 1215 | ps2_drain(ps2dev, 3, 100); |
1da177e4 LT |
1216 | |
1217 | return 0; | |
1218 | } | |
1219 | ||
25bded7c | 1220 | static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
1221 | { |
1222 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1223 | ||
1224 | /* Try ALPS magic knock - 4 disable before enable */ | |
1225 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1226 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1227 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1228 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1229 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) | |
1230 | return -1; | |
1231 | ||
1232 | /* | |
1233 | * Switch mouse to poll (remote) mode so motion data will not | |
1234 | * get in our way | |
1235 | */ | |
1236 | return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); | |
1237 | } | |
1238 | ||
95f75e91 YT |
1239 | static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) |
1240 | { | |
1241 | int i, nibble; | |
1242 | ||
1243 | /* | |
1244 | * b0-b11 are valid bits, send sequence is inverse. | |
1245 | * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 | |
1246 | */ | |
1247 | for (i = 0; i <= 8; i += 4) { | |
1248 | nibble = (word >> i) & 0xf; | |
1249 | if (alps_command_mode_send_nibble(psmouse, nibble)) | |
1250 | return -1; | |
1251 | } | |
1252 | ||
1253 | return 0; | |
1254 | } | |
1255 | ||
1256 | static int alps_monitor_mode_write_reg(struct psmouse *psmouse, | |
1257 | u16 addr, u16 value) | |
1258 | { | |
1259 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1260 | ||
1261 | /* 0x0A0 is the command to write the word */ | |
1262 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || | |
1263 | alps_monitor_mode_send_word(psmouse, 0x0A0) || | |
1264 | alps_monitor_mode_send_word(psmouse, addr) || | |
1265 | alps_monitor_mode_send_word(psmouse, value) || | |
1266 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) | |
1267 | return -1; | |
1268 | ||
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | static int alps_monitor_mode(struct psmouse *psmouse, bool enable) | |
1273 | { | |
1274 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1275 | ||
1276 | if (enable) { | |
1277 | /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ | |
1278 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || | |
1279 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || | |
1280 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1281 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1282 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || | |
1283 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1284 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || | |
1285 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) | |
1286 | return -1; | |
1287 | } else { | |
1288 | /* EC to exit monitor mode */ | |
1289 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) | |
1290 | return -1; | |
1291 | } | |
1292 | ||
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | static int alps_absolute_mode_v6(struct psmouse *psmouse) | |
1297 | { | |
1298 | u16 reg_val = 0x181; | |
1299 | int ret = -1; | |
1300 | ||
1301 | /* enter monitor mode, to write the register */ | |
1302 | if (alps_monitor_mode(psmouse, true)) | |
1303 | return -1; | |
1304 | ||
1305 | ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); | |
1306 | ||
1307 | if (alps_monitor_mode(psmouse, false)) | |
1308 | ret = -1; | |
1309 | ||
1310 | return ret; | |
1311 | } | |
1312 | ||
1da177e4 LT |
1313 | static int alps_get_status(struct psmouse *psmouse, char *param) |
1314 | { | |
1da177e4 | 1315 | /* Get status: 0xF5 0xF5 0xF5 0xE9 */ |
24ba9707 | 1316 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) |
1da177e4 LT |
1317 | return -1; |
1318 | ||
1da177e4 LT |
1319 | return 0; |
1320 | } | |
1321 | ||
1322 | /* | |
1323 | * Turn touchpad tapping on or off. The sequences are: | |
1324 | * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, | |
1325 | * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. | |
1326 | * My guess that 0xE9 (GetInfo) is here as a sync point. | |
1327 | * For models that also have stickpointer (DualPoints) its tapping | |
1328 | * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but | |
1329 | * we don't fiddle with it. | |
1330 | */ | |
1331 | static int alps_tap_mode(struct psmouse *psmouse, int enable) | |
1332 | { | |
1333 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1334 | int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; | |
1335 | unsigned char tap_arg = enable ? 0x0A : 0x00; | |
1336 | unsigned char param[4]; | |
1337 | ||
1338 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || | |
1339 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1340 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1341 | ps2_command(ps2dev, &tap_arg, cmd)) | |
1342 | return -1; | |
1343 | ||
1344 | if (alps_get_status(psmouse, param)) | |
1345 | return -1; | |
1346 | ||
1347 | return 0; | |
1348 | } | |
1349 | ||
f0d5c6f4 DT |
1350 | /* |
1351 | * alps_poll() - poll the touchpad for current motion packet. | |
1352 | * Used in resync. | |
1353 | */ | |
1354 | static int alps_poll(struct psmouse *psmouse) | |
1355 | { | |
1356 | struct alps_data *priv = psmouse->private; | |
b46615fe | 1357 | unsigned char buf[sizeof(psmouse->packet)]; |
b7802c5c | 1358 | bool poll_failed; |
f0d5c6f4 | 1359 | |
99df65e7 | 1360 | if (priv->flags & ALPS_PASS) |
25bded7c | 1361 | alps_passthrough_mode_v2(psmouse, true); |
f0d5c6f4 DT |
1362 | |
1363 | poll_failed = ps2_command(&psmouse->ps2dev, buf, | |
1364 | PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; | |
1365 | ||
99df65e7 | 1366 | if (priv->flags & ALPS_PASS) |
25bded7c | 1367 | alps_passthrough_mode_v2(psmouse, false); |
f0d5c6f4 | 1368 | |
99df65e7 | 1369 | if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) |
f0d5c6f4 DT |
1370 | return -1; |
1371 | ||
1372 | if ((psmouse->badbyte & 0xc8) == 0x08) { | |
1373 | /* | |
1374 | * Poll the track stick ... | |
1375 | */ | |
1376 | if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) | |
1377 | return -1; | |
1378 | } | |
1379 | ||
1380 | memcpy(psmouse->packet, buf, sizeof(buf)); | |
1381 | return 0; | |
1382 | } | |
1383 | ||
25bded7c | 1384 | static int alps_hw_init_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
1385 | { |
1386 | struct alps_data *priv = psmouse->private; | |
f3a5c73d | 1387 | |
99df65e7 | 1388 | if ((priv->flags & ALPS_PASS) && |
25bded7c | 1389 | alps_passthrough_mode_v2(psmouse, true)) { |
1da177e4 | 1390 | return -1; |
b7802c5c | 1391 | } |
1da177e4 | 1392 | |
b7802c5c | 1393 | if (alps_tap_mode(psmouse, true)) { |
b5d21704 | 1394 | psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); |
1da177e4 | 1395 | return -1; |
963f626d | 1396 | } |
1da177e4 | 1397 | |
25bded7c | 1398 | if (alps_absolute_mode_v1_v2(psmouse)) { |
b5d21704 | 1399 | psmouse_err(psmouse, "Failed to enable absolute mode\n"); |
1da177e4 LT |
1400 | return -1; |
1401 | } | |
1402 | ||
99df65e7 | 1403 | if ((priv->flags & ALPS_PASS) && |
25bded7c | 1404 | alps_passthrough_mode_v2(psmouse, false)) { |
1da177e4 | 1405 | return -1; |
b7802c5c | 1406 | } |
1da177e4 | 1407 | |
1e0c5b12 DT |
1408 | /* ALPS needs stream mode, otherwise it won't report any data */ |
1409 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { | |
b5d21704 | 1410 | psmouse_err(psmouse, "Failed to enable stream mode\n"); |
1e0c5b12 DT |
1411 | return -1; |
1412 | } | |
1413 | ||
1414 | return 0; | |
1415 | } | |
1416 | ||
95f75e91 YT |
1417 | static int alps_hw_init_v6(struct psmouse *psmouse) |
1418 | { | |
1419 | unsigned char param[2] = {0xC8, 0x14}; | |
1420 | ||
1421 | /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ | |
1422 | if (alps_passthrough_mode_v2(psmouse, true)) | |
1423 | return -1; | |
1424 | ||
1425 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1426 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1427 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1428 | ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || | |
1429 | ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) | |
1430 | return -1; | |
1431 | ||
1432 | if (alps_passthrough_mode_v2(psmouse, false)) | |
1433 | return -1; | |
1434 | ||
1435 | if (alps_absolute_mode_v6(psmouse)) { | |
1436 | psmouse_err(psmouse, "Failed to enable absolute mode\n"); | |
1437 | return -1; | |
1438 | } | |
1439 | ||
1440 | return 0; | |
1441 | } | |
1442 | ||
25bded7c | 1443 | /* |
cd401204 | 1444 | * Enable or disable passthrough mode to the trackstick. |
25bded7c | 1445 | */ |
cd401204 KC |
1446 | static int alps_passthrough_mode_v3(struct psmouse *psmouse, |
1447 | int reg_base, bool enable) | |
25bded7c | 1448 | { |
cd401204 | 1449 | int reg_val, ret = -1; |
25bded7c | 1450 | |
d18e53fc | 1451 | if (alps_enter_command_mode(psmouse)) |
25bded7c SF |
1452 | return -1; |
1453 | ||
cd401204 KC |
1454 | reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); |
1455 | if (reg_val == -1) | |
1456 | goto error; | |
1457 | ||
25bded7c SF |
1458 | if (enable) |
1459 | reg_val |= 0x01; | |
1460 | else | |
1461 | reg_val &= ~0x01; | |
1462 | ||
cd401204 | 1463 | ret = __alps_command_mode_write_reg(psmouse, reg_val); |
25bded7c | 1464 | |
cd401204 KC |
1465 | error: |
1466 | if (alps_exit_command_mode(psmouse)) | |
1467 | ret = -1; | |
1468 | return ret; | |
25bded7c SF |
1469 | } |
1470 | ||
1471 | /* Must be in command mode when calling this function */ | |
1472 | static int alps_absolute_mode_v3(struct psmouse *psmouse) | |
1473 | { | |
1474 | int reg_val; | |
1475 | ||
1476 | reg_val = alps_command_mode_read_reg(psmouse, 0x0004); | |
1477 | if (reg_val == -1) | |
1478 | return -1; | |
1479 | ||
1480 | reg_val |= 0x06; | |
1481 | if (__alps_command_mode_write_reg(psmouse, reg_val)) | |
1482 | return -1; | |
1483 | ||
1484 | return 0; | |
1485 | } | |
1486 | ||
cd401204 | 1487 | static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) |
25bded7c | 1488 | { |
cd401204 | 1489 | int ret = -EIO, reg_val; |
25bded7c | 1490 | |
d18e53fc | 1491 | if (alps_enter_command_mode(psmouse)) |
25bded7c SF |
1492 | goto error; |
1493 | ||
cd401204 | 1494 | reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); |
25bded7c SF |
1495 | if (reg_val == -1) |
1496 | goto error; | |
cd401204 KC |
1497 | |
1498 | /* bit 7: trackstick is present */ | |
1499 | ret = reg_val & 0x80 ? 0 : -ENODEV; | |
1500 | ||
1501 | error: | |
1502 | alps_exit_command_mode(psmouse); | |
1503 | return ret; | |
1504 | } | |
1505 | ||
1506 | static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) | |
1507 | { | |
1508 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1509 | int ret = 0; | |
1510 | unsigned char param[4]; | |
1511 | ||
1512 | if (alps_passthrough_mode_v3(psmouse, reg_base, true)) | |
1513 | return -EIO; | |
1514 | ||
1515 | /* | |
1516 | * E7 report for the trackstick | |
1517 | * | |
1518 | * There have been reports of failures to seem to trace back | |
1519 | * to the above trackstick check failing. When these occur | |
1520 | * this E7 report fails, so when that happens we continue | |
1521 | * with the assumption that there isn't a trackstick after | |
1522 | * all. | |
1523 | */ | |
1524 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { | |
1525 | psmouse_warn(psmouse, "trackstick E7 report failed\n"); | |
1526 | ret = -ENODEV; | |
1527 | } else { | |
39fbe585 | 1528 | psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); |
25bded7c SF |
1529 | |
1530 | /* | |
cd401204 KC |
1531 | * Not sure what this does, but it is absolutely |
1532 | * essential. Without it, the touchpad does not | |
1533 | * work at all and the trackstick just emits normal | |
1534 | * PS/2 packets. | |
25bded7c | 1535 | */ |
cd401204 KC |
1536 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
1537 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1538 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1539 | alps_command_mode_send_nibble(psmouse, 0x9) || | |
1540 | alps_command_mode_send_nibble(psmouse, 0x4)) { | |
1541 | psmouse_err(psmouse, | |
1542 | "Error sending magic E6 sequence\n"); | |
1543 | ret = -EIO; | |
1544 | goto error; | |
25bded7c SF |
1545 | } |
1546 | ||
cd401204 KC |
1547 | /* |
1548 | * This ensures the trackstick packets are in the format | |
1549 | * supported by this driver. If bit 1 isn't set the packet | |
1550 | * format is different. | |
1551 | */ | |
d18e53fc | 1552 | if (alps_enter_command_mode(psmouse) || |
cd401204 KC |
1553 | alps_command_mode_write_reg(psmouse, |
1554 | reg_base + 0x08, 0x82) || | |
1555 | alps_exit_command_mode(psmouse)) | |
1556 | ret = -EIO; | |
25bded7c SF |
1557 | } |
1558 | ||
cd401204 KC |
1559 | error: |
1560 | if (alps_passthrough_mode_v3(psmouse, reg_base, false)) | |
1561 | ret = -EIO; | |
1562 | ||
1563 | return ret; | |
1564 | } | |
1565 | ||
1566 | static int alps_hw_init_v3(struct psmouse *psmouse) | |
1567 | { | |
1568 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1569 | int reg_val; | |
1570 | unsigned char param[4]; | |
1571 | ||
1572 | reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); | |
1573 | if (reg_val == -EIO) | |
1574 | goto error; | |
39fbe585 | 1575 | |
cd401204 KC |
1576 | if (reg_val == 0 && |
1577 | alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) | |
1578 | goto error; | |
1579 | ||
d18e53fc | 1580 | if (alps_enter_command_mode(psmouse) || |
cd401204 | 1581 | alps_absolute_mode_v3(psmouse)) { |
25bded7c SF |
1582 | psmouse_err(psmouse, "Failed to enter absolute mode\n"); |
1583 | goto error; | |
1584 | } | |
1585 | ||
1586 | reg_val = alps_command_mode_read_reg(psmouse, 0x0006); | |
1587 | if (reg_val == -1) | |
1588 | goto error; | |
1589 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) | |
1590 | goto error; | |
1591 | ||
1592 | reg_val = alps_command_mode_read_reg(psmouse, 0x0007); | |
1593 | if (reg_val == -1) | |
1594 | goto error; | |
1595 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) | |
1596 | goto error; | |
1597 | ||
1598 | if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) | |
1599 | goto error; | |
1600 | if (__alps_command_mode_write_reg(psmouse, 0x04)) | |
1601 | goto error; | |
1602 | ||
1603 | if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) | |
1604 | goto error; | |
1605 | if (__alps_command_mode_write_reg(psmouse, 0x03)) | |
1606 | goto error; | |
1607 | ||
1608 | if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) | |
1609 | goto error; | |
1610 | if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) | |
1611 | goto error; | |
1612 | ||
1613 | if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) | |
1614 | goto error; | |
1615 | if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) | |
1616 | goto error; | |
1617 | ||
25bded7c SF |
1618 | alps_exit_command_mode(psmouse); |
1619 | ||
1620 | /* Set rate and enable data reporting */ | |
1621 | param[0] = 0x64; | |
1622 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || | |
1623 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1624 | psmouse_err(psmouse, "Failed to enable data reporting\n"); | |
1625 | return -1; | |
1626 | } | |
1627 | ||
1628 | return 0; | |
1629 | ||
25bded7c SF |
1630 | error: |
1631 | /* | |
1632 | * Leaving the touchpad in command mode will essentially render | |
1633 | * it unusable until the machine reboots, so exit it here just | |
1634 | * to be safe | |
1635 | */ | |
1636 | alps_exit_command_mode(psmouse); | |
1637 | return -1; | |
1638 | } | |
1639 | ||
1302bac3 KC |
1640 | static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) |
1641 | { | |
cd401204 | 1642 | struct alps_data *priv = psmouse->private; |
1302bac3 KC |
1643 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
1644 | int reg_val, ret = -1; | |
1645 | ||
cd401204 KC |
1646 | if (priv->flags & ALPS_DUALPOINT) { |
1647 | reg_val = alps_setup_trackstick_v3(psmouse, | |
1648 | ALPS_REG_BASE_RUSHMORE); | |
1649 | if (reg_val == -EIO) | |
1650 | goto error; | |
1651 | if (reg_val == -ENODEV) | |
1652 | priv->flags &= ~ALPS_DUALPOINT; | |
1653 | } | |
1654 | ||
d18e53fc | 1655 | if (alps_enter_command_mode(psmouse) || |
1302bac3 KC |
1656 | alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || |
1657 | alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) | |
1658 | goto error; | |
1659 | ||
1660 | reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); | |
1661 | if (reg_val == -1) | |
1662 | goto error; | |
1663 | if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) | |
1664 | goto error; | |
1665 | ||
1666 | if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) | |
1667 | goto error; | |
1668 | ||
1669 | /* enter absolute mode */ | |
1670 | reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); | |
1671 | if (reg_val == -1) | |
1672 | goto error; | |
1673 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) | |
1674 | goto error; | |
1675 | ||
1676 | alps_exit_command_mode(psmouse); | |
1677 | return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); | |
1678 | ||
1679 | error: | |
1680 | alps_exit_command_mode(psmouse); | |
1681 | return ret; | |
1682 | } | |
1683 | ||
25bded7c SF |
1684 | /* Must be in command mode when calling this function */ |
1685 | static int alps_absolute_mode_v4(struct psmouse *psmouse) | |
1686 | { | |
1687 | int reg_val; | |
1688 | ||
1689 | reg_val = alps_command_mode_read_reg(psmouse, 0x0004); | |
1690 | if (reg_val == -1) | |
1691 | return -1; | |
1692 | ||
1693 | reg_val |= 0x02; | |
1694 | if (__alps_command_mode_write_reg(psmouse, reg_val)) | |
1695 | return -1; | |
1696 | ||
1697 | return 0; | |
1698 | } | |
1699 | ||
1700 | static int alps_hw_init_v4(struct psmouse *psmouse) | |
1701 | { | |
25bded7c SF |
1702 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
1703 | unsigned char param[4]; | |
1704 | ||
d18e53fc | 1705 | if (alps_enter_command_mode(psmouse)) |
25bded7c SF |
1706 | goto error; |
1707 | ||
1708 | if (alps_absolute_mode_v4(psmouse)) { | |
1709 | psmouse_err(psmouse, "Failed to enter absolute mode\n"); | |
1710 | goto error; | |
1711 | } | |
1712 | ||
1713 | if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) | |
1714 | goto error; | |
1715 | ||
1716 | if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) | |
1717 | goto error; | |
1718 | ||
1719 | if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) | |
1720 | goto error; | |
1721 | ||
1722 | if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) | |
1723 | goto error; | |
1724 | ||
1725 | if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) | |
1726 | goto error; | |
1727 | ||
1728 | if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) | |
1729 | goto error; | |
1730 | ||
1731 | if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) | |
1732 | goto error; | |
1733 | ||
1734 | if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) | |
1735 | goto error; | |
1736 | ||
1737 | alps_exit_command_mode(psmouse); | |
1738 | ||
1739 | /* | |
1740 | * This sequence changes the output from a 9-byte to an | |
1741 | * 8-byte format. All the same data seems to be present, | |
1742 | * just in a more compact format. | |
1743 | */ | |
1744 | param[0] = 0xc8; | |
1745 | param[1] = 0x64; | |
1746 | param[2] = 0x50; | |
1747 | if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || | |
1748 | ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || | |
1749 | ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || | |
1750 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) | |
1751 | return -1; | |
1752 | ||
1753 | /* Set rate and enable data reporting */ | |
1754 | param[0] = 0x64; | |
1755 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || | |
1756 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1757 | psmouse_err(psmouse, "Failed to enable data reporting\n"); | |
1758 | return -1; | |
1759 | } | |
1760 | ||
1761 | return 0; | |
1762 | ||
1763 | error: | |
1764 | /* | |
1765 | * Leaving the touchpad in command mode will essentially render | |
1766 | * it unusable until the machine reboots, so exit it here just | |
1767 | * to be safe | |
1768 | */ | |
1769 | alps_exit_command_mode(psmouse); | |
1770 | return -1; | |
1771 | } | |
1772 | ||
ee65d4b3 YT |
1773 | static int alps_dolphin_get_device_area(struct psmouse *psmouse, |
1774 | struct alps_data *priv) | |
1775 | { | |
1776 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1777 | unsigned char param[4] = {0}; | |
1778 | int num_x_electrode, num_y_electrode; | |
1779 | ||
1780 | if (alps_enter_command_mode(psmouse)) | |
1781 | return -1; | |
1782 | ||
1783 | param[0] = 0x0a; | |
1784 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || | |
1785 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || | |
1786 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || | |
1787 | ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || | |
1788 | ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) | |
1789 | return -1; | |
1790 | ||
1791 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
1792 | return -1; | |
1793 | ||
1794 | /* | |
1795 | * Dolphin's sensor line number is not fixed. It can be calculated | |
1796 | * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. | |
1797 | * Further more, we can get device's x_max and y_max by multiplying | |
1798 | * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. | |
1799 | * | |
1800 | * e.g. When we get register's sensor_x = 11 & sensor_y = 8, | |
1801 | * real sensor line number X = 11 + 8 = 19, and | |
1802 | * real sensor line number Y = 8 + 1 = 9. | |
1803 | * So, x_max = (19 - 1) * 64 = 1152, and | |
1804 | * y_max = (9 - 1) * 64 = 512. | |
1805 | */ | |
1806 | num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); | |
1807 | num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); | |
1808 | priv->x_bits = num_x_electrode; | |
1809 | priv->y_bits = num_y_electrode; | |
1810 | priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; | |
1811 | priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; | |
1812 | ||
1813 | if (alps_exit_command_mode(psmouse)) | |
1814 | return -1; | |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
75af9e56 DT |
1819 | static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) |
1820 | { | |
1821 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1822 | unsigned char param[2]; | |
1823 | ||
1824 | /* This is dolphin "v1" as empirically defined by florin9doi */ | |
1825 | param[0] = 0x64; | |
1826 | param[1] = 0x28; | |
1827 | ||
1828 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || | |
1829 | ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || | |
1830 | ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) | |
1831 | return -1; | |
1832 | ||
1833 | return 0; | |
1834 | } | |
1835 | ||
24af5cb9 | 1836 | static void alps_set_defaults(struct alps_data *priv) |
25bded7c | 1837 | { |
f673ceb1 KC |
1838 | priv->byte0 = 0x8f; |
1839 | priv->mask0 = 0x8f; | |
1840 | priv->flags = ALPS_DUALPOINT; | |
1841 | ||
7a9f73e7 KC |
1842 | priv->x_max = 2000; |
1843 | priv->y_max = 1400; | |
1844 | priv->x_bits = 15; | |
1845 | priv->y_bits = 11; | |
1846 | ||
99df65e7 | 1847 | switch (priv->proto_version) { |
25bded7c SF |
1848 | case ALPS_PROTO_V1: |
1849 | case ALPS_PROTO_V2: | |
24af5cb9 KC |
1850 | priv->hw_init = alps_hw_init_v1_v2; |
1851 | priv->process_packet = alps_process_packet_v1_v2; | |
1852 | priv->set_abs_params = alps_set_abs_params_st; | |
95f75e91 YT |
1853 | priv->x_max = 1023; |
1854 | priv->y_max = 767; | |
25bded7c SF |
1855 | break; |
1856 | case ALPS_PROTO_V3: | |
24af5cb9 KC |
1857 | priv->hw_init = alps_hw_init_v3; |
1858 | priv->process_packet = alps_process_packet_v3; | |
1859 | priv->set_abs_params = alps_set_abs_params_mt; | |
f85e5001 | 1860 | priv->decode_fields = alps_decode_pinnacle; |
50e8b216 KC |
1861 | priv->nibble_commands = alps_v3_nibble_commands; |
1862 | priv->addr_command = PSMOUSE_CMD_RESET_WRAP; | |
25bded7c SF |
1863 | break; |
1864 | case ALPS_PROTO_V4: | |
24af5cb9 KC |
1865 | priv->hw_init = alps_hw_init_v4; |
1866 | priv->process_packet = alps_process_packet_v4; | |
1867 | priv->set_abs_params = alps_set_abs_params_mt; | |
50e8b216 KC |
1868 | priv->nibble_commands = alps_v4_nibble_commands; |
1869 | priv->addr_command = PSMOUSE_CMD_DISABLE; | |
25bded7c | 1870 | break; |
75af9e56 DT |
1871 | case ALPS_PROTO_V5: |
1872 | priv->hw_init = alps_hw_init_dolphin_v1; | |
ee65d4b3 | 1873 | priv->process_packet = alps_process_touchpad_packet_v3_v5; |
75af9e56 DT |
1874 | priv->decode_fields = alps_decode_dolphin; |
1875 | priv->set_abs_params = alps_set_abs_params_mt; | |
1876 | priv->nibble_commands = alps_v3_nibble_commands; | |
1877 | priv->addr_command = PSMOUSE_CMD_RESET_WRAP; | |
1878 | priv->byte0 = 0xc8; | |
ee65d4b3 | 1879 | priv->mask0 = 0xd8; |
75af9e56 DT |
1880 | priv->flags = 0; |
1881 | priv->x_max = 1360; | |
1882 | priv->y_max = 660; | |
1883 | priv->x_bits = 23; | |
1884 | priv->y_bits = 12; | |
1885 | break; | |
95f75e91 YT |
1886 | case ALPS_PROTO_V6: |
1887 | priv->hw_init = alps_hw_init_v6; | |
1888 | priv->process_packet = alps_process_packet_v6; | |
1889 | priv->set_abs_params = alps_set_abs_params_st; | |
1890 | priv->nibble_commands = alps_v6_nibble_commands; | |
1891 | priv->x_max = 2047; | |
1892 | priv->y_max = 1535; | |
1893 | break; | |
25bded7c | 1894 | } |
25bded7c SF |
1895 | } |
1896 | ||
b5d6b851 KC |
1897 | static int alps_match_table(struct psmouse *psmouse, struct alps_data *priv, |
1898 | unsigned char *e7, unsigned char *ec) | |
2e992cc0 | 1899 | { |
b5d6b851 | 1900 | const struct alps_model_info *model; |
2e992cc0 KC |
1901 | int i; |
1902 | ||
b5d6b851 KC |
1903 | for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { |
1904 | model = &alps_model_data[i]; | |
1905 | ||
1906 | if (!memcmp(e7, model->signature, sizeof(model->signature)) && | |
1907 | (!model->command_mode_resp || | |
1908 | model->command_mode_resp == ec[2])) { | |
1909 | ||
1910 | priv->proto_version = model->proto_version; | |
24af5cb9 KC |
1911 | alps_set_defaults(priv); |
1912 | ||
b5d6b851 KC |
1913 | priv->flags = model->flags; |
1914 | priv->byte0 = model->byte0; | |
1915 | priv->mask0 = model->mask0; | |
1916 | ||
1917 | return 0; | |
1918 | } | |
1919 | } | |
1920 | ||
1921 | return -EINVAL; | |
1922 | } | |
1923 | ||
1924 | static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) | |
1925 | { | |
1926 | unsigned char e6[4], e7[4], ec[4]; | |
1927 | ||
2e992cc0 KC |
1928 | /* |
1929 | * First try "E6 report". | |
1930 | * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. | |
1931 | * The bits 0-2 of the first byte will be 1s if some buttons are | |
1932 | * pressed. | |
1933 | */ | |
b5d6b851 KC |
1934 | if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, |
1935 | PSMOUSE_CMD_SETSCALE11, e6)) | |
1936 | return -EIO; | |
2e992cc0 | 1937 | |
b5d6b851 KC |
1938 | if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) |
1939 | return -EINVAL; | |
2e992cc0 KC |
1940 | |
1941 | /* | |
b5d6b851 KC |
1942 | * Now get the "E7" and "EC" reports. These will uniquely identify |
1943 | * most ALPS touchpads. | |
2e992cc0 | 1944 | */ |
b5d6b851 KC |
1945 | if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, |
1946 | PSMOUSE_CMD_SETSCALE21, e7) || | |
1947 | alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, | |
1948 | PSMOUSE_CMD_RESET_WRAP, ec) || | |
1949 | alps_exit_command_mode(psmouse)) | |
1950 | return -EIO; | |
2e992cc0 | 1951 | |
f673ceb1 | 1952 | if (alps_match_table(psmouse, priv, e7, ec) == 0) { |
75af9e56 DT |
1953 | return 0; |
1954 | } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && | |
ee65d4b3 | 1955 | ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { |
75af9e56 DT |
1956 | priv->proto_version = ALPS_PROTO_V5; |
1957 | alps_set_defaults(priv); | |
ee65d4b3 YT |
1958 | if (alps_dolphin_get_device_area(psmouse, priv)) |
1959 | return -EIO; | |
1960 | else | |
1961 | return 0; | |
1302bac3 KC |
1962 | } else if (ec[0] == 0x88 && ec[1] == 0x08) { |
1963 | priv->proto_version = ALPS_PROTO_V3; | |
1964 | alps_set_defaults(priv); | |
1965 | ||
1966 | priv->hw_init = alps_hw_init_rushmore_v3; | |
1967 | priv->decode_fields = alps_decode_rushmore; | |
1968 | priv->x_bits = 16; | |
1969 | priv->y_bits = 12; | |
40e8f53b | 1970 | priv->flags |= ALPS_IS_RUSHMORE; |
1302bac3 | 1971 | |
cd401204 KC |
1972 | /* hack to make addr_command, nibble_command available */ |
1973 | psmouse->private = priv; | |
1974 | ||
1975 | if (alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_RUSHMORE)) | |
1976 | priv->flags &= ~ALPS_DUALPOINT; | |
1977 | ||
f673ceb1 KC |
1978 | return 0; |
1979 | } else if (ec[0] == 0x88 && ec[1] == 0x07 && | |
1980 | ec[2] >= 0x90 && ec[2] <= 0x9d) { | |
1981 | priv->proto_version = ALPS_PROTO_V3; | |
1982 | alps_set_defaults(priv); | |
1983 | ||
b5d6b851 | 1984 | return 0; |
f673ceb1 | 1985 | } |
2e992cc0 | 1986 | |
b5d6b851 | 1987 | psmouse_info(psmouse, |
39fbe585 | 1988 | "Unknown ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); |
2e992cc0 | 1989 | |
b5d6b851 | 1990 | return -EINVAL; |
2e992cc0 KC |
1991 | } |
1992 | ||
1e0c5b12 DT |
1993 | static int alps_reconnect(struct psmouse *psmouse) |
1994 | { | |
b5d6b851 | 1995 | struct alps_data *priv = psmouse->private; |
71bb21b6 | 1996 | |
1e0c5b12 DT |
1997 | psmouse_reset(psmouse); |
1998 | ||
b5d6b851 | 1999 | if (alps_identify(psmouse, priv) < 0) |
1e0c5b12 DT |
2000 | return -1; |
2001 | ||
24af5cb9 | 2002 | return priv->hw_init(psmouse); |
1da177e4 LT |
2003 | } |
2004 | ||
2005 | static void alps_disconnect(struct psmouse *psmouse) | |
2006 | { | |
2007 | struct alps_data *priv = psmouse->private; | |
2e5b636b | 2008 | |
1da177e4 | 2009 | psmouse_reset(psmouse); |
1d9f2626 | 2010 | del_timer_sync(&priv->timer); |
2e5b636b | 2011 | input_unregister_device(priv->dev2); |
1da177e4 LT |
2012 | kfree(priv); |
2013 | } | |
2014 | ||
24af5cb9 KC |
2015 | static void alps_set_abs_params_st(struct alps_data *priv, |
2016 | struct input_dev *dev1) | |
2017 | { | |
95f75e91 YT |
2018 | input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); |
2019 | input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); | |
24af5cb9 KC |
2020 | } |
2021 | ||
2022 | static void alps_set_abs_params_mt(struct alps_data *priv, | |
2023 | struct input_dev *dev1) | |
2024 | { | |
2025 | set_bit(INPUT_PROP_SEMI_MT, dev1->propbit); | |
2026 | input_mt_init_slots(dev1, 2, 0); | |
7a9f73e7 KC |
2027 | input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); |
2028 | input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); | |
24af5cb9 KC |
2029 | |
2030 | set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit); | |
2031 | set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); | |
2032 | set_bit(BTN_TOOL_QUADTAP, dev1->keybit); | |
2033 | ||
7a9f73e7 KC |
2034 | input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); |
2035 | input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); | |
24af5cb9 KC |
2036 | } |
2037 | ||
1da177e4 LT |
2038 | int alps_init(struct psmouse *psmouse) |
2039 | { | |
2040 | struct alps_data *priv; | |
2e5b636b | 2041 | struct input_dev *dev1 = psmouse->dev, *dev2; |
1da177e4 | 2042 | |
f42649e8 | 2043 | priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); |
2e5b636b DT |
2044 | dev2 = input_allocate_device(); |
2045 | if (!priv || !dev2) | |
1da177e4 | 2046 | goto init_fail; |
2e5b636b DT |
2047 | |
2048 | priv->dev2 = dev2; | |
1d9f2626 SK |
2049 | setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); |
2050 | ||
1e0c5b12 | 2051 | psmouse->private = priv; |
1da177e4 | 2052 | |
25bded7c SF |
2053 | psmouse_reset(psmouse); |
2054 | ||
b5d6b851 | 2055 | if (alps_identify(psmouse, priv) < 0) |
71bb21b6 ML |
2056 | goto init_fail; |
2057 | ||
24af5cb9 | 2058 | if (priv->hw_init(psmouse)) |
1da177e4 LT |
2059 | goto init_fail; |
2060 | ||
7105d2ea DT |
2061 | /* |
2062 | * Undo part of setup done for us by psmouse core since touchpad | |
2063 | * is not a relative device. | |
2064 | */ | |
2065 | __clear_bit(EV_REL, dev1->evbit); | |
2066 | __clear_bit(REL_X, dev1->relbit); | |
2067 | __clear_bit(REL_Y, dev1->relbit); | |
2068 | ||
2069 | /* | |
2070 | * Now set up our capabilities. | |
2071 | */ | |
7b19ada2 JS |
2072 | dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); |
2073 | dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); | |
2074 | dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); | |
71bb21b6 ML |
2075 | dev1->keybit[BIT_WORD(BTN_LEFT)] |= |
2076 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
1da177e4 | 2077 | |
7b19ada2 | 2078 | dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); |
25bded7c | 2079 | |
24af5cb9 | 2080 | priv->set_abs_params(priv, dev1); |
2e5b636b | 2081 | input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); |
1da177e4 | 2082 | |
99df65e7 | 2083 | if (priv->flags & ALPS_WHEEL) { |
7b19ada2 JS |
2084 | dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); |
2085 | dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); | |
1da177e4 LT |
2086 | } |
2087 | ||
99df65e7 | 2088 | if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
7b19ada2 JS |
2089 | dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); |
2090 | dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); | |
1da177e4 LT |
2091 | } |
2092 | ||
99df65e7 | 2093 | if (priv->flags & ALPS_FOUR_BUTTONS) { |
71bb21b6 ML |
2094 | dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); |
2095 | dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); | |
2096 | dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); | |
2097 | dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); | |
2098 | } else { | |
2099 | dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); | |
2100 | } | |
2101 | ||
08ffce45 | 2102 | snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); |
2e5b636b | 2103 | dev2->phys = priv->phys; |
99df65e7 | 2104 | dev2->name = (priv->flags & ALPS_DUALPOINT) ? |
9354f263 | 2105 | "DualPoint Stick" : "ALPS PS/2 Device"; |
2e5b636b DT |
2106 | dev2->id.bustype = BUS_I8042; |
2107 | dev2->id.vendor = 0x0002; | |
2108 | dev2->id.product = PSMOUSE_ALPS; | |
2109 | dev2->id.version = 0x0000; | |
1db3a345 | 2110 | dev2->dev.parent = &psmouse->ps2dev.serio->dev; |
1da177e4 | 2111 | |
7b19ada2 | 2112 | dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
71bb21b6 ML |
2113 | dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
2114 | dev2->keybit[BIT_WORD(BTN_LEFT)] = | |
2115 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); | |
1da177e4 | 2116 | |
f42649e8 DT |
2117 | if (input_register_device(priv->dev2)) |
2118 | goto init_fail; | |
1da177e4 LT |
2119 | |
2120 | psmouse->protocol_handler = alps_process_byte; | |
f0d5c6f4 | 2121 | psmouse->poll = alps_poll; |
1da177e4 LT |
2122 | psmouse->disconnect = alps_disconnect; |
2123 | psmouse->reconnect = alps_reconnect; | |
99df65e7 | 2124 | psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; |
1da177e4 | 2125 | |
f0d5c6f4 DT |
2126 | /* We are having trouble resyncing ALPS touchpads so disable it for now */ |
2127 | psmouse->resync_time = 0; | |
2128 | ||
1da177e4 LT |
2129 | return 0; |
2130 | ||
2131 | init_fail: | |
f42649e8 | 2132 | psmouse_reset(psmouse); |
2e5b636b | 2133 | input_free_device(dev2); |
1da177e4 | 2134 | kfree(priv); |
1e0c5b12 | 2135 | psmouse->private = NULL; |
1da177e4 LT |
2136 | return -1; |
2137 | } | |
2138 | ||
b7802c5c | 2139 | int alps_detect(struct psmouse *psmouse, bool set_properties) |
1da177e4 | 2140 | { |
b5d6b851 | 2141 | struct alps_data dummy; |
1da177e4 | 2142 | |
b5d6b851 | 2143 | if (alps_identify(psmouse, &dummy) < 0) |
1da177e4 LT |
2144 | return -1; |
2145 | ||
2146 | if (set_properties) { | |
2147 | psmouse->vendor = "ALPS"; | |
b5d6b851 | 2148 | psmouse->name = dummy.flags & ALPS_DUALPOINT ? |
968ac842 | 2149 | "DualPoint TouchPad" : "GlidePoint"; |
b5d6b851 | 2150 | psmouse->model = dummy.proto_version << 8; |
1da177e4 LT |
2151 | } |
2152 | return 0; | |
2153 | } | |
2154 |