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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 | ||
73 | ||
71bb21b6 ML |
74 | #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ |
75 | #define ALPS_PASS 0x04 /* device has a pass-through port */ | |
76 | ||
77 | #define ALPS_WHEEL 0x08 /* hardware wheel present */ | |
78 | #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ | |
79 | #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ | |
80 | #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ | |
1d9f2626 SK |
81 | #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with |
82 | 6-byte ALPS packet */ | |
1da177e4 | 83 | |
e38de678 | 84 | static const struct alps_model_info alps_model_data[] = { |
25bded7c SF |
85 | { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ |
86 | { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */ | |
87 | { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
88 | { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
89 | { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */ | |
90 | { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
91 | { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
92 | { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ | |
93 | { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ | |
94 | { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ | |
95 | { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
96 | { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ | |
97 | { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ | |
98 | { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
99 | { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ | |
100 | { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ | |
101 | { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, | |
102 | { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ | |
1d9f2626 | 103 | /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ |
25bded7c | 104 | { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, |
1d9f2626 | 105 | ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, |
25bded7c SF |
106 | { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ |
107 | { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, | |
108 | ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */ | |
25bded7c | 109 | { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 }, |
1da177e4 LT |
110 | }; |
111 | ||
24af5cb9 KC |
112 | static void alps_set_abs_params_st(struct alps_data *priv, |
113 | struct input_dev *dev1); | |
114 | static void alps_set_abs_params_mt(struct alps_data *priv, | |
115 | struct input_dev *dev1); | |
116 | ||
1da177e4 LT |
117 | /* |
118 | * XXX - this entry is suspicious. First byte has zero lower nibble, | |
119 | * which is what a normal mouse would report. Also, the value 0x0e | |
120 | * isn't valid per PS/2 spec. | |
121 | */ | |
122 | ||
d4b347b2 | 123 | /* Packet formats are described in Documentation/input/alps.txt */ |
1da177e4 | 124 | |
99df65e7 | 125 | static bool alps_is_valid_first_byte(struct alps_data *priv, |
1d9f2626 SK |
126 | unsigned char data) |
127 | { | |
99df65e7 | 128 | return (data & priv->mask0) == priv->byte0; |
1d9f2626 SK |
129 | } |
130 | ||
131 | static void alps_report_buttons(struct psmouse *psmouse, | |
132 | struct input_dev *dev1, struct input_dev *dev2, | |
133 | int left, int right, int middle) | |
134 | { | |
c91ed059 MB |
135 | struct input_dev *dev; |
136 | ||
137 | /* | |
138 | * If shared button has already been reported on the | |
139 | * other device (dev2) then this event should be also | |
140 | * sent through that device. | |
141 | */ | |
142 | dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1; | |
143 | input_report_key(dev, BTN_LEFT, left); | |
144 | ||
145 | dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1; | |
146 | input_report_key(dev, BTN_RIGHT, right); | |
147 | ||
148 | dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1; | |
149 | input_report_key(dev, BTN_MIDDLE, middle); | |
150 | ||
151 | /* | |
152 | * Sync the _other_ device now, we'll do the first | |
153 | * device later once we report the rest of the events. | |
154 | */ | |
155 | input_sync(dev2); | |
1d9f2626 SK |
156 | } |
157 | ||
25bded7c | 158 | static void alps_process_packet_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
159 | { |
160 | struct alps_data *priv = psmouse->private; | |
161 | unsigned char *packet = psmouse->packet; | |
2e5b636b DT |
162 | struct input_dev *dev = psmouse->dev; |
163 | struct input_dev *dev2 = priv->dev2; | |
1da177e4 | 164 | int x, y, z, ges, fin, left, right, middle; |
c30b4c10 | 165 | int back = 0, forward = 0; |
1da177e4 | 166 | |
99df65e7 | 167 | if (priv->proto_version == ALPS_PROTO_V1) { |
d2f4012f YM |
168 | left = packet[2] & 0x10; |
169 | right = packet[2] & 0x08; | |
1da177e4 LT |
170 | middle = 0; |
171 | x = packet[1] | ((packet[0] & 0x07) << 7); | |
172 | y = packet[4] | ((packet[3] & 0x07) << 7); | |
173 | z = packet[5]; | |
174 | } else { | |
175 | left = packet[3] & 1; | |
176 | right = packet[3] & 2; | |
177 | middle = packet[3] & 4; | |
178 | x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); | |
179 | y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); | |
180 | z = packet[5]; | |
181 | } | |
182 | ||
99df65e7 | 183 | if (priv->flags & ALPS_FW_BK_1) { |
3c00bb96 LK |
184 | back = packet[0] & 0x10; |
185 | forward = packet[2] & 4; | |
c30b4c10 ICR |
186 | } |
187 | ||
99df65e7 | 188 | if (priv->flags & ALPS_FW_BK_2) { |
c30b4c10 ICR |
189 | back = packet[3] & 4; |
190 | forward = packet[2] & 4; | |
191 | if ((middle = forward && back)) | |
192 | forward = back = 0; | |
193 | } | |
194 | ||
1da177e4 LT |
195 | ges = packet[2] & 1; |
196 | fin = packet[2] & 2; | |
197 | ||
99df65e7 | 198 | if ((priv->flags & ALPS_DUALPOINT) && z == 127) { |
1da177e4 LT |
199 | input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); |
200 | input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); | |
d7ed5d88 | 201 | |
1d9f2626 | 202 | alps_report_buttons(psmouse, dev2, dev, left, right, middle); |
d7ed5d88 | 203 | |
1da177e4 LT |
204 | input_sync(dev2); |
205 | return; | |
206 | } | |
207 | ||
1d9f2626 | 208 | alps_report_buttons(psmouse, dev, dev2, left, right, middle); |
d7ed5d88 | 209 | |
1da177e4 | 210 | /* Convert hardware tap to a reasonable Z value */ |
71bb21b6 ML |
211 | if (ges && !fin) |
212 | z = 40; | |
1da177e4 LT |
213 | |
214 | /* | |
215 | * A "tap and drag" operation is reported by the hardware as a transition | |
216 | * from (!fin && ges) to (fin && ges). This should be translated to the | |
217 | * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. | |
218 | */ | |
219 | if (ges && fin && !priv->prev_fin) { | |
220 | input_report_abs(dev, ABS_X, x); | |
221 | input_report_abs(dev, ABS_Y, y); | |
222 | input_report_abs(dev, ABS_PRESSURE, 0); | |
223 | input_report_key(dev, BTN_TOOL_FINGER, 0); | |
224 | input_sync(dev); | |
225 | } | |
226 | priv->prev_fin = fin; | |
227 | ||
71bb21b6 ML |
228 | if (z > 30) |
229 | input_report_key(dev, BTN_TOUCH, 1); | |
230 | if (z < 25) | |
231 | input_report_key(dev, BTN_TOUCH, 0); | |
1da177e4 LT |
232 | |
233 | if (z > 0) { | |
234 | input_report_abs(dev, ABS_X, x); | |
235 | input_report_abs(dev, ABS_Y, y); | |
236 | } | |
237 | ||
238 | input_report_abs(dev, ABS_PRESSURE, z); | |
239 | input_report_key(dev, BTN_TOOL_FINGER, z > 0); | |
240 | ||
99df65e7 | 241 | if (priv->flags & ALPS_WHEEL) |
e6c047b9 | 242 | input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); |
1da177e4 | 243 | |
99df65e7 | 244 | if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
c30b4c10 ICR |
245 | input_report_key(dev, BTN_FORWARD, forward); |
246 | input_report_key(dev, BTN_BACK, back); | |
1da177e4 LT |
247 | } |
248 | ||
99df65e7 | 249 | if (priv->flags & ALPS_FOUR_BUTTONS) { |
71bb21b6 ML |
250 | input_report_key(dev, BTN_0, packet[2] & 4); |
251 | input_report_key(dev, BTN_1, packet[0] & 0x10); | |
252 | input_report_key(dev, BTN_2, packet[3] & 4); | |
253 | input_report_key(dev, BTN_3, packet[0] & 0x20); | |
254 | } | |
255 | ||
1da177e4 LT |
256 | input_sync(dev); |
257 | } | |
258 | ||
01ce661f SF |
259 | /* |
260 | * Process bitmap data from v3 and v4 protocols. Returns the number of | |
261 | * fingers detected. A return value of 0 means at least one of the | |
262 | * bitmaps was empty. | |
263 | * | |
264 | * The bitmaps don't have enough data to track fingers, so this function | |
265 | * only generates points representing a bounding box of all contacts. | |
266 | * These points are returned in x1, y1, x2, and y2 when the return value | |
267 | * is greater than 0. | |
268 | */ | |
7a9f73e7 KC |
269 | static int alps_process_bitmap(struct alps_data *priv, |
270 | unsigned int x_map, unsigned int y_map, | |
01ce661f SF |
271 | int *x1, int *y1, int *x2, int *y2) |
272 | { | |
273 | struct alps_bitmap_point { | |
274 | int start_bit; | |
275 | int num_bits; | |
276 | }; | |
277 | ||
278 | int fingers_x = 0, fingers_y = 0, fingers; | |
279 | int i, bit, prev_bit; | |
280 | struct alps_bitmap_point x_low = {0,}, x_high = {0,}; | |
281 | struct alps_bitmap_point y_low = {0,}, y_high = {0,}; | |
282 | struct alps_bitmap_point *point; | |
283 | ||
284 | if (!x_map || !y_map) | |
285 | return 0; | |
286 | ||
287 | *x1 = *y1 = *x2 = *y2 = 0; | |
288 | ||
289 | prev_bit = 0; | |
290 | point = &x_low; | |
291 | for (i = 0; x_map != 0; i++, x_map >>= 1) { | |
292 | bit = x_map & 1; | |
293 | if (bit) { | |
294 | if (!prev_bit) { | |
295 | point->start_bit = i; | |
296 | fingers_x++; | |
297 | } | |
298 | point->num_bits++; | |
299 | } else { | |
300 | if (prev_bit) | |
301 | point = &x_high; | |
302 | else | |
303 | point->num_bits = 0; | |
304 | } | |
305 | prev_bit = bit; | |
306 | } | |
307 | ||
308 | /* | |
309 | * y bitmap is reversed for what we need (lower positions are in | |
310 | * higher bits), so we process from the top end. | |
311 | */ | |
7a9f73e7 | 312 | y_map = y_map << (sizeof(y_map) * BITS_PER_BYTE - priv->y_bits); |
01ce661f SF |
313 | prev_bit = 0; |
314 | point = &y_low; | |
315 | for (i = 0; y_map != 0; i++, y_map <<= 1) { | |
316 | bit = y_map & (1 << (sizeof(y_map) * BITS_PER_BYTE - 1)); | |
317 | if (bit) { | |
318 | if (!prev_bit) { | |
319 | point->start_bit = i; | |
320 | fingers_y++; | |
321 | } | |
322 | point->num_bits++; | |
323 | } else { | |
324 | if (prev_bit) | |
325 | point = &y_high; | |
326 | else | |
327 | point->num_bits = 0; | |
328 | } | |
329 | prev_bit = bit; | |
330 | } | |
331 | ||
332 | /* | |
333 | * Fingers can overlap, so we use the maximum count of fingers | |
334 | * on either axis as the finger count. | |
335 | */ | |
336 | fingers = max(fingers_x, fingers_y); | |
337 | ||
338 | /* | |
339 | * If total fingers is > 1 but either axis reports only a single | |
340 | * contact, we have overlapping or adjacent fingers. For the | |
341 | * purposes of creating a bounding box, divide the single contact | |
342 | * (roughly) equally between the two points. | |
343 | */ | |
344 | if (fingers > 1) { | |
345 | if (fingers_x == 1) { | |
346 | i = x_low.num_bits / 2; | |
347 | x_low.num_bits = x_low.num_bits - i; | |
348 | x_high.start_bit = x_low.start_bit + i; | |
349 | x_high.num_bits = max(i, 1); | |
350 | } else if (fingers_y == 1) { | |
351 | i = y_low.num_bits / 2; | |
352 | y_low.num_bits = y_low.num_bits - i; | |
353 | y_high.start_bit = y_low.start_bit + i; | |
354 | y_high.num_bits = max(i, 1); | |
355 | } | |
356 | } | |
357 | ||
7a9f73e7 KC |
358 | *x1 = (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / |
359 | (2 * (priv->x_bits - 1)); | |
360 | *y1 = (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / | |
361 | (2 * (priv->y_bits - 1)); | |
01ce661f SF |
362 | |
363 | if (fingers > 1) { | |
7a9f73e7 KC |
364 | *x2 = (priv->x_max * |
365 | (2 * x_high.start_bit + x_high.num_bits - 1)) / | |
366 | (2 * (priv->x_bits - 1)); | |
367 | *y2 = (priv->y_max * | |
368 | (2 * y_high.start_bit + y_high.num_bits - 1)) / | |
369 | (2 * (priv->y_bits - 1)); | |
01ce661f SF |
370 | } |
371 | ||
372 | return fingers; | |
373 | } | |
374 | ||
375 | static void alps_set_slot(struct input_dev *dev, int slot, bool active, | |
376 | int x, int y) | |
377 | { | |
378 | input_mt_slot(dev, slot); | |
379 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
380 | if (active) { | |
381 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
382 | input_report_abs(dev, ABS_MT_POSITION_Y, y); | |
383 | } | |
384 | } | |
385 | ||
386 | static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers, | |
387 | int x1, int y1, int x2, int y2) | |
388 | { | |
389 | alps_set_slot(dev, 0, num_fingers != 0, x1, y1); | |
390 | alps_set_slot(dev, 1, num_fingers == 2, x2, y2); | |
391 | } | |
392 | ||
25bded7c SF |
393 | static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) |
394 | { | |
395 | struct alps_data *priv = psmouse->private; | |
396 | unsigned char *packet = psmouse->packet; | |
397 | struct input_dev *dev = priv->dev2; | |
398 | int x, y, z, left, right, middle; | |
399 | ||
400 | /* Sanity check packet */ | |
401 | if (!(packet[0] & 0x40)) { | |
402 | psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); | |
403 | return; | |
404 | } | |
405 | ||
406 | /* | |
407 | * There's a special packet that seems to indicate the end | |
408 | * of a stream of trackstick data. Filter these out. | |
409 | */ | |
410 | if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) | |
411 | return; | |
412 | ||
413 | x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); | |
414 | y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); | |
415 | z = (packet[4] & 0x7c) >> 2; | |
416 | ||
417 | /* | |
418 | * The x and y values tend to be quite large, and when used | |
419 | * alone the trackstick is difficult to use. Scale them down | |
420 | * to compensate. | |
421 | */ | |
422 | x /= 8; | |
423 | y /= 8; | |
424 | ||
425 | input_report_rel(dev, REL_X, x); | |
426 | input_report_rel(dev, REL_Y, -y); | |
427 | ||
428 | /* | |
429 | * Most ALPS models report the trackstick buttons in the touchpad | |
430 | * packets, but a few report them here. No reliable way has been | |
431 | * found to differentiate between the models upfront, so we enable | |
432 | * the quirk in response to seeing a button press in the trackstick | |
433 | * packet. | |
434 | */ | |
435 | left = packet[3] & 0x01; | |
436 | right = packet[3] & 0x02; | |
437 | middle = packet[3] & 0x04; | |
438 | ||
439 | if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && | |
440 | (left || right || middle)) | |
441 | priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; | |
442 | ||
443 | if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { | |
444 | input_report_key(dev, BTN_LEFT, left); | |
445 | input_report_key(dev, BTN_RIGHT, right); | |
446 | input_report_key(dev, BTN_MIDDLE, middle); | |
447 | } | |
448 | ||
449 | input_sync(dev); | |
450 | return; | |
451 | } | |
452 | ||
f85e5001 KC |
453 | static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) |
454 | { | |
455 | f->left = !!(p[3] & 0x01); | |
456 | f->right = !!(p[3] & 0x02); | |
457 | f->middle = !!(p[3] & 0x04); | |
458 | ||
459 | f->ts_left = !!(p[3] & 0x10); | |
460 | f->ts_right = !!(p[3] & 0x20); | |
461 | f->ts_middle = !!(p[3] & 0x40); | |
462 | } | |
463 | ||
464 | static void alps_decode_pinnacle(struct alps_fields *f, unsigned char *p) | |
465 | { | |
466 | f->first_mp = !!(p[4] & 0x40); | |
467 | f->is_mp = !!(p[0] & 0x40); | |
468 | ||
469 | f->fingers = (p[5] & 0x3) + 1; | |
470 | f->x_map = ((p[4] & 0x7e) << 8) | | |
471 | ((p[1] & 0x7f) << 2) | | |
472 | ((p[0] & 0x30) >> 4); | |
473 | f->y_map = ((p[3] & 0x70) << 4) | | |
474 | ((p[2] & 0x7f) << 1) | | |
475 | (p[4] & 0x01); | |
476 | ||
477 | f->x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | | |
478 | ((p[0] & 0x30) >> 4); | |
479 | f->y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); | |
480 | f->z = p[5] & 0x7f; | |
481 | ||
482 | alps_decode_buttons_v3(f, p); | |
483 | } | |
484 | ||
1302bac3 KC |
485 | static void alps_decode_rushmore(struct alps_fields *f, unsigned char *p) |
486 | { | |
487 | alps_decode_pinnacle(f, p); | |
488 | ||
489 | f->x_map |= (p[5] & 0x10) << 11; | |
490 | f->y_map |= (p[5] & 0x20) << 6; | |
491 | } | |
492 | ||
75af9e56 DT |
493 | static void alps_decode_dolphin(struct alps_fields *f, unsigned char *p) |
494 | { | |
495 | f->first_mp = !!(p[0] & 0x02); | |
496 | f->is_mp = !!(p[0] & 0x20); | |
497 | ||
498 | f->fingers = ((p[0] & 0x6) >> 1 | | |
499 | (p[0] & 0x10) >> 2); | |
500 | f->x_map = ((p[2] & 0x60) >> 5) | | |
501 | ((p[4] & 0x7f) << 2) | | |
502 | ((p[5] & 0x7f) << 9) | | |
503 | ((p[3] & 0x07) << 16) | | |
504 | ((p[3] & 0x70) << 15) | | |
505 | ((p[0] & 0x01) << 22); | |
506 | f->y_map = (p[1] & 0x7f) | | |
507 | ((p[2] & 0x1f) << 7); | |
508 | ||
509 | f->x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); | |
510 | f->y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); | |
511 | f->z = (p[0] & 4) ? 0 : p[5] & 0x7f; | |
512 | ||
513 | alps_decode_buttons_v3(f, p); | |
514 | } | |
515 | ||
25bded7c SF |
516 | static void alps_process_touchpad_packet_v3(struct psmouse *psmouse) |
517 | { | |
518 | struct alps_data *priv = psmouse->private; | |
519 | unsigned char *packet = psmouse->packet; | |
520 | struct input_dev *dev = psmouse->dev; | |
521 | struct input_dev *dev2 = priv->dev2; | |
01ce661f SF |
522 | int x1 = 0, y1 = 0, x2 = 0, y2 = 0; |
523 | int fingers = 0, bmap_fingers; | |
f85e5001 KC |
524 | struct alps_fields f; |
525 | ||
526 | priv->decode_fields(&f, packet); | |
25bded7c SF |
527 | |
528 | /* | |
01ce661f SF |
529 | * There's no single feature of touchpad position and bitmap packets |
530 | * that can be used to distinguish between them. We rely on the fact | |
531 | * that a bitmap packet should always follow a position packet with | |
532 | * bit 6 of packet[4] set. | |
25bded7c SF |
533 | */ |
534 | if (priv->multi_packet) { | |
25bded7c SF |
535 | /* |
536 | * Sometimes a position packet will indicate a multi-packet | |
537 | * sequence, but then what follows is another position | |
538 | * packet. Check for this, and when it happens process the | |
539 | * position packet as usual. | |
540 | */ | |
f85e5001 KC |
541 | if (f.is_mp) { |
542 | fingers = f.fingers; | |
7a9f73e7 | 543 | bmap_fingers = alps_process_bitmap(priv, |
f85e5001 | 544 | f.x_map, f.y_map, |
01ce661f SF |
545 | &x1, &y1, &x2, &y2); |
546 | ||
25bded7c | 547 | /* |
01ce661f SF |
548 | * We shouldn't report more than one finger if |
549 | * we don't have two coordinates. | |
25bded7c | 550 | */ |
01ce661f SF |
551 | if (fingers > 1 && bmap_fingers < 2) |
552 | fingers = bmap_fingers; | |
553 | ||
554 | /* Now process position packet */ | |
f85e5001 | 555 | priv->decode_fields(&f, priv->multi_data); |
01ce661f SF |
556 | } else { |
557 | priv->multi_packet = 0; | |
25bded7c SF |
558 | } |
559 | } | |
560 | ||
01ce661f SF |
561 | /* |
562 | * Bit 6 of byte 0 is not usually set in position packets. The only | |
563 | * times it seems to be set is in situations where the data is | |
564 | * suspect anyway, e.g. a palm resting flat on the touchpad. Given | |
565 | * this combined with the fact that this bit is useful for filtering | |
566 | * out misidentified bitmap packets, we reject anything with this | |
567 | * bit set. | |
568 | */ | |
f85e5001 | 569 | if (f.is_mp) |
01ce661f SF |
570 | return; |
571 | ||
f85e5001 | 572 | if (!priv->multi_packet && f.first_mp) { |
25bded7c | 573 | priv->multi_packet = 1; |
01ce661f SF |
574 | memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); |
575 | return; | |
576 | } | |
577 | ||
578 | priv->multi_packet = 0; | |
25bded7c | 579 | |
25bded7c SF |
580 | /* |
581 | * Sometimes the hardware sends a single packet with z = 0 | |
582 | * in the middle of a stream. Real releases generate packets | |
583 | * with x, y, and z all zero, so these seem to be flukes. | |
584 | * Ignore them. | |
585 | */ | |
f85e5001 | 586 | if (f.x && f.y && !f.z) |
25bded7c SF |
587 | return; |
588 | ||
01ce661f SF |
589 | /* |
590 | * If we don't have MT data or the bitmaps were empty, we have | |
591 | * to rely on ST data. | |
592 | */ | |
593 | if (!fingers) { | |
f85e5001 KC |
594 | x1 = f.x; |
595 | y1 = f.y; | |
596 | fingers = f.z > 0 ? 1 : 0; | |
01ce661f SF |
597 | } |
598 | ||
f85e5001 | 599 | if (f.z >= 64) |
25bded7c SF |
600 | input_report_key(dev, BTN_TOUCH, 1); |
601 | else | |
602 | input_report_key(dev, BTN_TOUCH, 0); | |
603 | ||
01ce661f SF |
604 | alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); |
605 | ||
616575c2 | 606 | input_mt_report_finger_count(dev, fingers); |
01ce661f | 607 | |
f85e5001 KC |
608 | input_report_key(dev, BTN_LEFT, f.left); |
609 | input_report_key(dev, BTN_RIGHT, f.right); | |
610 | input_report_key(dev, BTN_MIDDLE, f.middle); | |
01ce661f | 611 | |
f85e5001 KC |
612 | if (f.z > 0) { |
613 | input_report_abs(dev, ABS_X, f.x); | |
614 | input_report_abs(dev, ABS_Y, f.y); | |
25bded7c | 615 | } |
f85e5001 | 616 | input_report_abs(dev, ABS_PRESSURE, f.z); |
25bded7c | 617 | |
25bded7c SF |
618 | input_sync(dev); |
619 | ||
620 | if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { | |
f85e5001 KC |
621 | input_report_key(dev2, BTN_LEFT, f.ts_left); |
622 | input_report_key(dev2, BTN_RIGHT, f.ts_right); | |
623 | input_report_key(dev2, BTN_MIDDLE, f.ts_middle); | |
25bded7c SF |
624 | input_sync(dev2); |
625 | } | |
626 | } | |
627 | ||
628 | static void alps_process_packet_v3(struct psmouse *psmouse) | |
629 | { | |
630 | unsigned char *packet = psmouse->packet; | |
631 | ||
632 | /* | |
633 | * v3 protocol packets come in three types, two representing | |
634 | * touchpad data and one representing trackstick data. | |
635 | * Trackstick packets seem to be distinguished by always | |
636 | * having 0x3f in the last byte. This value has never been | |
637 | * observed in the last byte of either of the other types | |
638 | * of packets. | |
639 | */ | |
640 | if (packet[5] == 0x3f) { | |
641 | alps_process_trackstick_packet_v3(psmouse); | |
642 | return; | |
643 | } | |
644 | ||
645 | alps_process_touchpad_packet_v3(psmouse); | |
646 | } | |
647 | ||
648 | static void alps_process_packet_v4(struct psmouse *psmouse) | |
649 | { | |
3b7e09fa | 650 | struct alps_data *priv = psmouse->private; |
25bded7c SF |
651 | unsigned char *packet = psmouse->packet; |
652 | struct input_dev *dev = psmouse->dev; | |
3b7e09fa | 653 | int offset; |
25bded7c SF |
654 | int x, y, z; |
655 | int left, right; | |
3b7e09fa GP |
656 | int x1, y1, x2, y2; |
657 | int fingers = 0; | |
658 | unsigned int x_bitmap, y_bitmap; | |
659 | ||
660 | /* | |
661 | * v4 has a 6-byte encoding for bitmap data, but this data is | |
662 | * broken up between 3 normal packets. Use priv->multi_packet to | |
663 | * track our position in the bitmap packet. | |
664 | */ | |
665 | if (packet[6] & 0x40) { | |
666 | /* sync, reset position */ | |
667 | priv->multi_packet = 0; | |
668 | } | |
669 | ||
670 | if (WARN_ON_ONCE(priv->multi_packet > 2)) | |
671 | return; | |
672 | ||
673 | offset = 2 * priv->multi_packet; | |
674 | priv->multi_data[offset] = packet[6]; | |
675 | priv->multi_data[offset + 1] = packet[7]; | |
676 | ||
677 | if (++priv->multi_packet > 2) { | |
678 | priv->multi_packet = 0; | |
679 | ||
680 | x_bitmap = ((priv->multi_data[2] & 0x1f) << 10) | | |
681 | ((priv->multi_data[3] & 0x60) << 3) | | |
682 | ((priv->multi_data[0] & 0x3f) << 2) | | |
683 | ((priv->multi_data[1] & 0x60) >> 5); | |
684 | y_bitmap = ((priv->multi_data[5] & 0x01) << 10) | | |
685 | ((priv->multi_data[3] & 0x1f) << 5) | | |
686 | (priv->multi_data[1] & 0x1f); | |
687 | ||
7a9f73e7 | 688 | fingers = alps_process_bitmap(priv, x_bitmap, y_bitmap, |
3b7e09fa GP |
689 | &x1, &y1, &x2, &y2); |
690 | ||
691 | /* Store MT data.*/ | |
692 | priv->fingers = fingers; | |
693 | priv->x1 = x1; | |
694 | priv->x2 = x2; | |
695 | priv->y1 = y1; | |
696 | priv->y2 = y2; | |
697 | } | |
25bded7c SF |
698 | |
699 | left = packet[4] & 0x01; | |
700 | right = packet[4] & 0x02; | |
701 | ||
702 | x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | | |
703 | ((packet[0] & 0x30) >> 4); | |
704 | y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); | |
705 | z = packet[5] & 0x7f; | |
706 | ||
3b7e09fa GP |
707 | /* |
708 | * If there were no contacts in the bitmap, use ST | |
709 | * points in MT reports. | |
710 | * If there were two contacts or more, report MT data. | |
711 | */ | |
712 | if (priv->fingers < 2) { | |
713 | x1 = x; | |
714 | y1 = y; | |
715 | fingers = z > 0 ? 1 : 0; | |
716 | } else { | |
717 | fingers = priv->fingers; | |
718 | x1 = priv->x1; | |
719 | x2 = priv->x2; | |
720 | y1 = priv->y1; | |
721 | y2 = priv->y2; | |
722 | } | |
723 | ||
25bded7c SF |
724 | if (z >= 64) |
725 | input_report_key(dev, BTN_TOUCH, 1); | |
726 | else | |
727 | input_report_key(dev, BTN_TOUCH, 0); | |
728 | ||
3b7e09fa GP |
729 | alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); |
730 | ||
616575c2 | 731 | input_mt_report_finger_count(dev, fingers); |
3b7e09fa GP |
732 | |
733 | input_report_key(dev, BTN_LEFT, left); | |
734 | input_report_key(dev, BTN_RIGHT, right); | |
735 | ||
25bded7c SF |
736 | if (z > 0) { |
737 | input_report_abs(dev, ABS_X, x); | |
738 | input_report_abs(dev, ABS_Y, y); | |
739 | } | |
740 | input_report_abs(dev, ABS_PRESSURE, z); | |
741 | ||
25bded7c SF |
742 | input_sync(dev); |
743 | } | |
744 | ||
1d9f2626 SK |
745 | static void alps_report_bare_ps2_packet(struct psmouse *psmouse, |
746 | unsigned char packet[], | |
747 | bool report_buttons) | |
748 | { | |
749 | struct alps_data *priv = psmouse->private; | |
750 | struct input_dev *dev2 = priv->dev2; | |
751 | ||
752 | if (report_buttons) | |
753 | alps_report_buttons(psmouse, dev2, psmouse->dev, | |
754 | packet[0] & 1, packet[0] & 2, packet[0] & 4); | |
755 | ||
756 | input_report_rel(dev2, REL_X, | |
757 | packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); | |
758 | input_report_rel(dev2, REL_Y, | |
759 | packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); | |
760 | ||
761 | input_sync(dev2); | |
762 | } | |
763 | ||
764 | static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) | |
765 | { | |
766 | struct alps_data *priv = psmouse->private; | |
767 | ||
768 | if (psmouse->pktcnt < 6) | |
769 | return PSMOUSE_GOOD_DATA; | |
770 | ||
771 | if (psmouse->pktcnt == 6) { | |
772 | /* | |
773 | * Start a timer to flush the packet if it ends up last | |
774 | * 6-byte packet in the stream. Timer needs to fire | |
775 | * psmouse core times out itself. 20 ms should be enough | |
776 | * to decide if we are getting more data or not. | |
777 | */ | |
778 | mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); | |
779 | return PSMOUSE_GOOD_DATA; | |
780 | } | |
781 | ||
782 | del_timer(&priv->timer); | |
783 | ||
784 | if (psmouse->packet[6] & 0x80) { | |
785 | ||
786 | /* | |
787 | * Highest bit is set - that means we either had | |
788 | * complete ALPS packet and this is start of the | |
789 | * next packet or we got garbage. | |
790 | */ | |
791 | ||
792 | if (((psmouse->packet[3] | | |
793 | psmouse->packet[4] | | |
794 | psmouse->packet[5]) & 0x80) || | |
99df65e7 | 795 | (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { |
b5d21704 | 796 | psmouse_dbg(psmouse, |
3b112923 AS |
797 | "refusing packet %4ph (suspected interleaved ps/2)\n", |
798 | psmouse->packet + 3); | |
1d9f2626 SK |
799 | return PSMOUSE_BAD_DATA; |
800 | } | |
801 | ||
24af5cb9 | 802 | priv->process_packet(psmouse); |
1d9f2626 SK |
803 | |
804 | /* Continue with the next packet */ | |
805 | psmouse->packet[0] = psmouse->packet[6]; | |
806 | psmouse->pktcnt = 1; | |
807 | ||
808 | } else { | |
809 | ||
810 | /* | |
811 | * High bit is 0 - that means that we indeed got a PS/2 | |
812 | * packet in the middle of ALPS packet. | |
813 | * | |
814 | * There is also possibility that we got 6-byte ALPS | |
815 | * packet followed by 3-byte packet from trackpoint. We | |
816 | * can not distinguish between these 2 scenarios but | |
b5d21704 | 817 | * because the latter is unlikely to happen in course of |
1d9f2626 SK |
818 | * normal operation (user would need to press all |
819 | * buttons on the pad and start moving trackpoint | |
820 | * without touching the pad surface) we assume former. | |
821 | * Even if we are wrong the wost thing that would happen | |
822 | * the cursor would jump but we should not get protocol | |
b5d21704 | 823 | * de-synchronization. |
1d9f2626 SK |
824 | */ |
825 | ||
826 | alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], | |
827 | false); | |
828 | ||
829 | /* | |
830 | * Continue with the standard ALPS protocol handling, | |
831 | * but make sure we won't process it as an interleaved | |
832 | * packet again, which may happen if all buttons are | |
833 | * pressed. To avoid this let's reset the 4th bit which | |
834 | * is normally 1. | |
835 | */ | |
836 | psmouse->packet[3] = psmouse->packet[6] & 0xf7; | |
837 | psmouse->pktcnt = 4; | |
838 | } | |
839 | ||
840 | return PSMOUSE_GOOD_DATA; | |
841 | } | |
842 | ||
843 | static void alps_flush_packet(unsigned long data) | |
844 | { | |
845 | struct psmouse *psmouse = (struct psmouse *)data; | |
24af5cb9 | 846 | struct alps_data *priv = psmouse->private; |
1d9f2626 SK |
847 | |
848 | serio_pause_rx(psmouse->ps2dev.serio); | |
849 | ||
b46615fe | 850 | if (psmouse->pktcnt == psmouse->pktsize) { |
1d9f2626 SK |
851 | |
852 | /* | |
853 | * We did not any more data in reasonable amount of time. | |
854 | * Validate the last 3 bytes and process as a standard | |
855 | * ALPS packet. | |
856 | */ | |
857 | if ((psmouse->packet[3] | | |
858 | psmouse->packet[4] | | |
859 | psmouse->packet[5]) & 0x80) { | |
b5d21704 | 860 | psmouse_dbg(psmouse, |
3b112923 AS |
861 | "refusing packet %3ph (suspected interleaved ps/2)\n", |
862 | psmouse->packet + 3); | |
1d9f2626 | 863 | } else { |
24af5cb9 | 864 | priv->process_packet(psmouse); |
1d9f2626 SK |
865 | } |
866 | psmouse->pktcnt = 0; | |
867 | } | |
868 | ||
869 | serio_continue_rx(psmouse->ps2dev.serio); | |
870 | } | |
871 | ||
7d12e780 | 872 | static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) |
1da177e4 LT |
873 | { |
874 | struct alps_data *priv = psmouse->private; | |
875 | ||
876 | if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ | |
877 | if (psmouse->pktcnt == 3) { | |
1d9f2626 SK |
878 | alps_report_bare_ps2_packet(psmouse, psmouse->packet, |
879 | true); | |
1da177e4 LT |
880 | return PSMOUSE_FULL_PACKET; |
881 | } | |
882 | return PSMOUSE_GOOD_DATA; | |
883 | } | |
884 | ||
1d9f2626 SK |
885 | /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ |
886 | ||
99df65e7 | 887 | if ((priv->flags & ALPS_PS2_INTERLEAVED) && |
1d9f2626 SK |
888 | psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { |
889 | return alps_handle_interleaved_ps2(psmouse); | |
890 | } | |
891 | ||
99df65e7 | 892 | if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { |
b5d21704 DT |
893 | psmouse_dbg(psmouse, |
894 | "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", | |
99df65e7 | 895 | psmouse->packet[0], priv->mask0, priv->byte0); |
1da177e4 | 896 | return PSMOUSE_BAD_DATA; |
1d9f2626 | 897 | } |
1da177e4 | 898 | |
b46615fe | 899 | /* Bytes 2 - pktsize should have 0 in the highest bit */ |
75af9e56 DT |
900 | if (priv->proto_version != ALPS_PROTO_V5 && |
901 | psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && | |
1d9f2626 | 902 | (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { |
b5d21704 DT |
903 | psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", |
904 | psmouse->pktcnt - 1, | |
905 | psmouse->packet[psmouse->pktcnt - 1]); | |
1da177e4 | 906 | return PSMOUSE_BAD_DATA; |
1d9f2626 | 907 | } |
1da177e4 | 908 | |
b46615fe | 909 | if (psmouse->pktcnt == psmouse->pktsize) { |
24af5cb9 | 910 | priv->process_packet(psmouse); |
1da177e4 LT |
911 | return PSMOUSE_FULL_PACKET; |
912 | } | |
913 | ||
914 | return PSMOUSE_GOOD_DATA; | |
915 | } | |
916 | ||
25bded7c SF |
917 | static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) |
918 | { | |
919 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
920 | struct alps_data *priv = psmouse->private; | |
921 | int command; | |
922 | unsigned char *param; | |
923 | unsigned char dummy[4]; | |
924 | ||
925 | BUG_ON(nibble > 0xf); | |
926 | ||
927 | command = priv->nibble_commands[nibble].command; | |
928 | param = (command & 0x0f00) ? | |
929 | dummy : (unsigned char *)&priv->nibble_commands[nibble].data; | |
930 | ||
931 | if (ps2_command(ps2dev, param, command)) | |
932 | return -1; | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) | |
938 | { | |
939 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
940 | struct alps_data *priv = psmouse->private; | |
941 | int i, nibble; | |
942 | ||
943 | if (ps2_command(ps2dev, NULL, priv->addr_command)) | |
944 | return -1; | |
945 | ||
946 | for (i = 12; i >= 0; i -= 4) { | |
947 | nibble = (addr >> i) & 0xf; | |
948 | if (alps_command_mode_send_nibble(psmouse, nibble)) | |
949 | return -1; | |
950 | } | |
951 | ||
952 | return 0; | |
953 | } | |
954 | ||
955 | static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) | |
956 | { | |
957 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
958 | unsigned char param[4]; | |
959 | ||
960 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
961 | return -1; | |
962 | ||
963 | /* | |
964 | * The address being read is returned in the first two bytes | |
965 | * of the result. Check that this address matches the expected | |
966 | * address. | |
967 | */ | |
968 | if (addr != ((param[0] << 8) | param[1])) | |
969 | return -1; | |
970 | ||
971 | return param[2]; | |
972 | } | |
973 | ||
974 | static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) | |
975 | { | |
976 | if (alps_command_mode_set_addr(psmouse, addr)) | |
977 | return -1; | |
978 | return __alps_command_mode_read_reg(psmouse, addr); | |
979 | } | |
980 | ||
981 | static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) | |
982 | { | |
983 | if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) | |
984 | return -1; | |
985 | if (alps_command_mode_send_nibble(psmouse, value & 0xf)) | |
986 | return -1; | |
987 | return 0; | |
988 | } | |
989 | ||
990 | static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, | |
991 | u8 value) | |
992 | { | |
993 | if (alps_command_mode_set_addr(psmouse, addr)) | |
994 | return -1; | |
995 | return __alps_command_mode_write_reg(psmouse, value); | |
996 | } | |
997 | ||
24ba9707 KC |
998 | static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, |
999 | int repeated_command, unsigned char *param) | |
1000 | { | |
1001 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1002 | ||
1003 | param[0] = 0; | |
1004 | if (init_command && ps2_command(ps2dev, param, init_command)) | |
1005 | return -EIO; | |
1006 | ||
1007 | if (ps2_command(ps2dev, NULL, repeated_command) || | |
1008 | ps2_command(ps2dev, NULL, repeated_command) || | |
1009 | ps2_command(ps2dev, NULL, repeated_command)) | |
1010 | return -EIO; | |
1011 | ||
1012 | param[0] = param[1] = param[2] = 0xff; | |
1013 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
1014 | return -EIO; | |
1015 | ||
1016 | psmouse_dbg(psmouse, "%2.2X report: %2.2x %2.2x %2.2x\n", | |
1017 | repeated_command, param[0], param[1], param[2]); | |
1018 | return 0; | |
1019 | } | |
1020 | ||
d18e53fc | 1021 | static int alps_enter_command_mode(struct psmouse *psmouse) |
25bded7c SF |
1022 | { |
1023 | unsigned char param[4]; | |
25bded7c | 1024 | |
24ba9707 | 1025 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { |
25bded7c SF |
1026 | psmouse_err(psmouse, "failed to enter command mode\n"); |
1027 | return -1; | |
1028 | } | |
1029 | ||
75af9e56 DT |
1030 | if ((param[0] != 0x88 || (param[1] != 0x07 && param[1] != 0x08)) && |
1031 | param[0] != 0x73) { | |
25bded7c | 1032 | psmouse_dbg(psmouse, |
24ba9707 | 1033 | "unknown response while entering command mode\n"); |
25bded7c SF |
1034 | return -1; |
1035 | } | |
25bded7c SF |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | static inline int alps_exit_command_mode(struct psmouse *psmouse) | |
1040 | { | |
1041 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1042 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) | |
1043 | return -1; | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1da177e4 LT |
1047 | /* |
1048 | * For DualPoint devices select the device that should respond to | |
1049 | * subsequent commands. It looks like glidepad is behind stickpointer, | |
1050 | * I'd thought it would be other way around... | |
1051 | */ | |
25bded7c | 1052 | static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) |
1da177e4 LT |
1053 | { |
1054 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1da177e4 LT |
1055 | int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; |
1056 | ||
1057 | if (ps2_command(ps2dev, NULL, cmd) || | |
1058 | ps2_command(ps2dev, NULL, cmd) || | |
1059 | ps2_command(ps2dev, NULL, cmd) || | |
1060 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) | |
1061 | return -1; | |
1062 | ||
1063 | /* we may get 3 more bytes, just ignore them */ | |
c611763d | 1064 | ps2_drain(ps2dev, 3, 100); |
1da177e4 LT |
1065 | |
1066 | return 0; | |
1067 | } | |
1068 | ||
25bded7c | 1069 | static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
1070 | { |
1071 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1072 | ||
1073 | /* Try ALPS magic knock - 4 disable before enable */ | |
1074 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1075 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1076 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1077 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1078 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) | |
1079 | return -1; | |
1080 | ||
1081 | /* | |
1082 | * Switch mouse to poll (remote) mode so motion data will not | |
1083 | * get in our way | |
1084 | */ | |
1085 | return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); | |
1086 | } | |
1087 | ||
1088 | static int alps_get_status(struct psmouse *psmouse, char *param) | |
1089 | { | |
1da177e4 | 1090 | /* Get status: 0xF5 0xF5 0xF5 0xE9 */ |
24ba9707 | 1091 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) |
1da177e4 LT |
1092 | return -1; |
1093 | ||
1da177e4 LT |
1094 | return 0; |
1095 | } | |
1096 | ||
1097 | /* | |
1098 | * Turn touchpad tapping on or off. The sequences are: | |
1099 | * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, | |
1100 | * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. | |
1101 | * My guess that 0xE9 (GetInfo) is here as a sync point. | |
1102 | * For models that also have stickpointer (DualPoints) its tapping | |
1103 | * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but | |
1104 | * we don't fiddle with it. | |
1105 | */ | |
1106 | static int alps_tap_mode(struct psmouse *psmouse, int enable) | |
1107 | { | |
1108 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1109 | int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; | |
1110 | unsigned char tap_arg = enable ? 0x0A : 0x00; | |
1111 | unsigned char param[4]; | |
1112 | ||
1113 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || | |
1114 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1115 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1116 | ps2_command(ps2dev, &tap_arg, cmd)) | |
1117 | return -1; | |
1118 | ||
1119 | if (alps_get_status(psmouse, param)) | |
1120 | return -1; | |
1121 | ||
1122 | return 0; | |
1123 | } | |
1124 | ||
f0d5c6f4 DT |
1125 | /* |
1126 | * alps_poll() - poll the touchpad for current motion packet. | |
1127 | * Used in resync. | |
1128 | */ | |
1129 | static int alps_poll(struct psmouse *psmouse) | |
1130 | { | |
1131 | struct alps_data *priv = psmouse->private; | |
b46615fe | 1132 | unsigned char buf[sizeof(psmouse->packet)]; |
b7802c5c | 1133 | bool poll_failed; |
f0d5c6f4 | 1134 | |
99df65e7 | 1135 | if (priv->flags & ALPS_PASS) |
25bded7c | 1136 | alps_passthrough_mode_v2(psmouse, true); |
f0d5c6f4 DT |
1137 | |
1138 | poll_failed = ps2_command(&psmouse->ps2dev, buf, | |
1139 | PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; | |
1140 | ||
99df65e7 | 1141 | if (priv->flags & ALPS_PASS) |
25bded7c | 1142 | alps_passthrough_mode_v2(psmouse, false); |
f0d5c6f4 | 1143 | |
99df65e7 | 1144 | if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) |
f0d5c6f4 DT |
1145 | return -1; |
1146 | ||
1147 | if ((psmouse->badbyte & 0xc8) == 0x08) { | |
1148 | /* | |
1149 | * Poll the track stick ... | |
1150 | */ | |
1151 | if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) | |
1152 | return -1; | |
1153 | } | |
1154 | ||
1155 | memcpy(psmouse->packet, buf, sizeof(buf)); | |
1156 | return 0; | |
1157 | } | |
1158 | ||
25bded7c | 1159 | static int alps_hw_init_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
1160 | { |
1161 | struct alps_data *priv = psmouse->private; | |
f3a5c73d | 1162 | |
99df65e7 | 1163 | if ((priv->flags & ALPS_PASS) && |
25bded7c | 1164 | alps_passthrough_mode_v2(psmouse, true)) { |
1da177e4 | 1165 | return -1; |
b7802c5c | 1166 | } |
1da177e4 | 1167 | |
b7802c5c | 1168 | if (alps_tap_mode(psmouse, true)) { |
b5d21704 | 1169 | psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); |
1da177e4 | 1170 | return -1; |
963f626d | 1171 | } |
1da177e4 | 1172 | |
25bded7c | 1173 | if (alps_absolute_mode_v1_v2(psmouse)) { |
b5d21704 | 1174 | psmouse_err(psmouse, "Failed to enable absolute mode\n"); |
1da177e4 LT |
1175 | return -1; |
1176 | } | |
1177 | ||
99df65e7 | 1178 | if ((priv->flags & ALPS_PASS) && |
25bded7c | 1179 | alps_passthrough_mode_v2(psmouse, false)) { |
1da177e4 | 1180 | return -1; |
b7802c5c | 1181 | } |
1da177e4 | 1182 | |
1e0c5b12 DT |
1183 | /* ALPS needs stream mode, otherwise it won't report any data */ |
1184 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { | |
b5d21704 | 1185 | psmouse_err(psmouse, "Failed to enable stream mode\n"); |
1e0c5b12 DT |
1186 | return -1; |
1187 | } | |
1188 | ||
1189 | return 0; | |
1190 | } | |
1191 | ||
25bded7c | 1192 | /* |
cd401204 | 1193 | * Enable or disable passthrough mode to the trackstick. |
25bded7c | 1194 | */ |
cd401204 KC |
1195 | static int alps_passthrough_mode_v3(struct psmouse *psmouse, |
1196 | int reg_base, bool enable) | |
25bded7c | 1197 | { |
cd401204 | 1198 | int reg_val, ret = -1; |
25bded7c | 1199 | |
d18e53fc | 1200 | if (alps_enter_command_mode(psmouse)) |
25bded7c SF |
1201 | return -1; |
1202 | ||
cd401204 KC |
1203 | reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); |
1204 | if (reg_val == -1) | |
1205 | goto error; | |
1206 | ||
25bded7c SF |
1207 | if (enable) |
1208 | reg_val |= 0x01; | |
1209 | else | |
1210 | reg_val &= ~0x01; | |
1211 | ||
cd401204 | 1212 | ret = __alps_command_mode_write_reg(psmouse, reg_val); |
25bded7c | 1213 | |
cd401204 KC |
1214 | error: |
1215 | if (alps_exit_command_mode(psmouse)) | |
1216 | ret = -1; | |
1217 | return ret; | |
25bded7c SF |
1218 | } |
1219 | ||
1220 | /* Must be in command mode when calling this function */ | |
1221 | static int alps_absolute_mode_v3(struct psmouse *psmouse) | |
1222 | { | |
1223 | int reg_val; | |
1224 | ||
1225 | reg_val = alps_command_mode_read_reg(psmouse, 0x0004); | |
1226 | if (reg_val == -1) | |
1227 | return -1; | |
1228 | ||
1229 | reg_val |= 0x06; | |
1230 | if (__alps_command_mode_write_reg(psmouse, reg_val)) | |
1231 | return -1; | |
1232 | ||
1233 | return 0; | |
1234 | } | |
1235 | ||
cd401204 | 1236 | static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) |
25bded7c | 1237 | { |
cd401204 | 1238 | int ret = -EIO, reg_val; |
25bded7c | 1239 | |
d18e53fc | 1240 | if (alps_enter_command_mode(psmouse)) |
25bded7c SF |
1241 | goto error; |
1242 | ||
cd401204 | 1243 | reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); |
25bded7c SF |
1244 | if (reg_val == -1) |
1245 | goto error; | |
cd401204 KC |
1246 | |
1247 | /* bit 7: trackstick is present */ | |
1248 | ret = reg_val & 0x80 ? 0 : -ENODEV; | |
1249 | ||
1250 | error: | |
1251 | alps_exit_command_mode(psmouse); | |
1252 | return ret; | |
1253 | } | |
1254 | ||
1255 | static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) | |
1256 | { | |
1257 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1258 | int ret = 0; | |
1259 | unsigned char param[4]; | |
1260 | ||
1261 | if (alps_passthrough_mode_v3(psmouse, reg_base, true)) | |
1262 | return -EIO; | |
1263 | ||
1264 | /* | |
1265 | * E7 report for the trackstick | |
1266 | * | |
1267 | * There have been reports of failures to seem to trace back | |
1268 | * to the above trackstick check failing. When these occur | |
1269 | * this E7 report fails, so when that happens we continue | |
1270 | * with the assumption that there isn't a trackstick after | |
1271 | * all. | |
1272 | */ | |
1273 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { | |
1274 | psmouse_warn(psmouse, "trackstick E7 report failed\n"); | |
1275 | ret = -ENODEV; | |
1276 | } else { | |
1277 | psmouse_dbg(psmouse, | |
1278 | "trackstick E7 report: %2.2x %2.2x %2.2x\n", | |
1279 | param[0], param[1], param[2]); | |
25bded7c SF |
1280 | |
1281 | /* | |
cd401204 KC |
1282 | * Not sure what this does, but it is absolutely |
1283 | * essential. Without it, the touchpad does not | |
1284 | * work at all and the trackstick just emits normal | |
1285 | * PS/2 packets. | |
25bded7c | 1286 | */ |
cd401204 KC |
1287 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || |
1288 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1289 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1290 | alps_command_mode_send_nibble(psmouse, 0x9) || | |
1291 | alps_command_mode_send_nibble(psmouse, 0x4)) { | |
1292 | psmouse_err(psmouse, | |
1293 | "Error sending magic E6 sequence\n"); | |
1294 | ret = -EIO; | |
1295 | goto error; | |
25bded7c SF |
1296 | } |
1297 | ||
cd401204 KC |
1298 | /* |
1299 | * This ensures the trackstick packets are in the format | |
1300 | * supported by this driver. If bit 1 isn't set the packet | |
1301 | * format is different. | |
1302 | */ | |
d18e53fc | 1303 | if (alps_enter_command_mode(psmouse) || |
cd401204 KC |
1304 | alps_command_mode_write_reg(psmouse, |
1305 | reg_base + 0x08, 0x82) || | |
1306 | alps_exit_command_mode(psmouse)) | |
1307 | ret = -EIO; | |
25bded7c SF |
1308 | } |
1309 | ||
cd401204 KC |
1310 | error: |
1311 | if (alps_passthrough_mode_v3(psmouse, reg_base, false)) | |
1312 | ret = -EIO; | |
1313 | ||
1314 | return ret; | |
1315 | } | |
1316 | ||
1317 | static int alps_hw_init_v3(struct psmouse *psmouse) | |
1318 | { | |
1319 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1320 | int reg_val; | |
1321 | unsigned char param[4]; | |
1322 | ||
1323 | reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); | |
1324 | if (reg_val == -EIO) | |
1325 | goto error; | |
1326 | if (reg_val == 0 && | |
1327 | alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) | |
1328 | goto error; | |
1329 | ||
d18e53fc | 1330 | if (alps_enter_command_mode(psmouse) || |
cd401204 | 1331 | alps_absolute_mode_v3(psmouse)) { |
25bded7c SF |
1332 | psmouse_err(psmouse, "Failed to enter absolute mode\n"); |
1333 | goto error; | |
1334 | } | |
1335 | ||
1336 | reg_val = alps_command_mode_read_reg(psmouse, 0x0006); | |
1337 | if (reg_val == -1) | |
1338 | goto error; | |
1339 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) | |
1340 | goto error; | |
1341 | ||
1342 | reg_val = alps_command_mode_read_reg(psmouse, 0x0007); | |
1343 | if (reg_val == -1) | |
1344 | goto error; | |
1345 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) | |
1346 | goto error; | |
1347 | ||
1348 | if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) | |
1349 | goto error; | |
1350 | if (__alps_command_mode_write_reg(psmouse, 0x04)) | |
1351 | goto error; | |
1352 | ||
1353 | if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) | |
1354 | goto error; | |
1355 | if (__alps_command_mode_write_reg(psmouse, 0x03)) | |
1356 | goto error; | |
1357 | ||
1358 | if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) | |
1359 | goto error; | |
1360 | if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) | |
1361 | goto error; | |
1362 | ||
1363 | if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) | |
1364 | goto error; | |
1365 | if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) | |
1366 | goto error; | |
1367 | ||
25bded7c SF |
1368 | alps_exit_command_mode(psmouse); |
1369 | ||
1370 | /* Set rate and enable data reporting */ | |
1371 | param[0] = 0x64; | |
1372 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || | |
1373 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1374 | psmouse_err(psmouse, "Failed to enable data reporting\n"); | |
1375 | return -1; | |
1376 | } | |
1377 | ||
1378 | return 0; | |
1379 | ||
25bded7c SF |
1380 | error: |
1381 | /* | |
1382 | * Leaving the touchpad in command mode will essentially render | |
1383 | * it unusable until the machine reboots, so exit it here just | |
1384 | * to be safe | |
1385 | */ | |
1386 | alps_exit_command_mode(psmouse); | |
1387 | return -1; | |
1388 | } | |
1389 | ||
1302bac3 KC |
1390 | static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) |
1391 | { | |
cd401204 | 1392 | struct alps_data *priv = psmouse->private; |
1302bac3 KC |
1393 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
1394 | int reg_val, ret = -1; | |
1395 | ||
cd401204 KC |
1396 | if (priv->flags & ALPS_DUALPOINT) { |
1397 | reg_val = alps_setup_trackstick_v3(psmouse, | |
1398 | ALPS_REG_BASE_RUSHMORE); | |
1399 | if (reg_val == -EIO) | |
1400 | goto error; | |
1401 | if (reg_val == -ENODEV) | |
1402 | priv->flags &= ~ALPS_DUALPOINT; | |
1403 | } | |
1404 | ||
d18e53fc | 1405 | if (alps_enter_command_mode(psmouse) || |
1302bac3 KC |
1406 | alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || |
1407 | alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) | |
1408 | goto error; | |
1409 | ||
1410 | reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); | |
1411 | if (reg_val == -1) | |
1412 | goto error; | |
1413 | if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) | |
1414 | goto error; | |
1415 | ||
1416 | if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) | |
1417 | goto error; | |
1418 | ||
1419 | /* enter absolute mode */ | |
1420 | reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); | |
1421 | if (reg_val == -1) | |
1422 | goto error; | |
1423 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) | |
1424 | goto error; | |
1425 | ||
1426 | alps_exit_command_mode(psmouse); | |
1427 | return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); | |
1428 | ||
1429 | error: | |
1430 | alps_exit_command_mode(psmouse); | |
1431 | return ret; | |
1432 | } | |
1433 | ||
25bded7c SF |
1434 | /* Must be in command mode when calling this function */ |
1435 | static int alps_absolute_mode_v4(struct psmouse *psmouse) | |
1436 | { | |
1437 | int reg_val; | |
1438 | ||
1439 | reg_val = alps_command_mode_read_reg(psmouse, 0x0004); | |
1440 | if (reg_val == -1) | |
1441 | return -1; | |
1442 | ||
1443 | reg_val |= 0x02; | |
1444 | if (__alps_command_mode_write_reg(psmouse, reg_val)) | |
1445 | return -1; | |
1446 | ||
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | static int alps_hw_init_v4(struct psmouse *psmouse) | |
1451 | { | |
25bded7c SF |
1452 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
1453 | unsigned char param[4]; | |
1454 | ||
d18e53fc | 1455 | if (alps_enter_command_mode(psmouse)) |
25bded7c SF |
1456 | goto error; |
1457 | ||
1458 | if (alps_absolute_mode_v4(psmouse)) { | |
1459 | psmouse_err(psmouse, "Failed to enter absolute mode\n"); | |
1460 | goto error; | |
1461 | } | |
1462 | ||
1463 | if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) | |
1464 | goto error; | |
1465 | ||
1466 | if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) | |
1467 | goto error; | |
1468 | ||
1469 | if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) | |
1470 | goto error; | |
1471 | ||
1472 | if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) | |
1473 | goto error; | |
1474 | ||
1475 | if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) | |
1476 | goto error; | |
1477 | ||
1478 | if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) | |
1479 | goto error; | |
1480 | ||
1481 | if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) | |
1482 | goto error; | |
1483 | ||
1484 | if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) | |
1485 | goto error; | |
1486 | ||
1487 | alps_exit_command_mode(psmouse); | |
1488 | ||
1489 | /* | |
1490 | * This sequence changes the output from a 9-byte to an | |
1491 | * 8-byte format. All the same data seems to be present, | |
1492 | * just in a more compact format. | |
1493 | */ | |
1494 | param[0] = 0xc8; | |
1495 | param[1] = 0x64; | |
1496 | param[2] = 0x50; | |
1497 | if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || | |
1498 | ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || | |
1499 | ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || | |
1500 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) | |
1501 | return -1; | |
1502 | ||
1503 | /* Set rate and enable data reporting */ | |
1504 | param[0] = 0x64; | |
1505 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || | |
1506 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1507 | psmouse_err(psmouse, "Failed to enable data reporting\n"); | |
1508 | return -1; | |
1509 | } | |
1510 | ||
1511 | return 0; | |
1512 | ||
1513 | error: | |
1514 | /* | |
1515 | * Leaving the touchpad in command mode will essentially render | |
1516 | * it unusable until the machine reboots, so exit it here just | |
1517 | * to be safe | |
1518 | */ | |
1519 | alps_exit_command_mode(psmouse); | |
1520 | return -1; | |
1521 | } | |
1522 | ||
75af9e56 DT |
1523 | static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) |
1524 | { | |
1525 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1526 | unsigned char param[2]; | |
1527 | ||
1528 | /* This is dolphin "v1" as empirically defined by florin9doi */ | |
1529 | param[0] = 0x64; | |
1530 | param[1] = 0x28; | |
1531 | ||
1532 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || | |
1533 | ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || | |
1534 | ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) | |
1535 | return -1; | |
1536 | ||
1537 | return 0; | |
1538 | } | |
1539 | ||
24af5cb9 | 1540 | static void alps_set_defaults(struct alps_data *priv) |
25bded7c | 1541 | { |
f673ceb1 KC |
1542 | priv->byte0 = 0x8f; |
1543 | priv->mask0 = 0x8f; | |
1544 | priv->flags = ALPS_DUALPOINT; | |
1545 | ||
7a9f73e7 KC |
1546 | priv->x_max = 2000; |
1547 | priv->y_max = 1400; | |
1548 | priv->x_bits = 15; | |
1549 | priv->y_bits = 11; | |
1550 | ||
99df65e7 | 1551 | switch (priv->proto_version) { |
25bded7c SF |
1552 | case ALPS_PROTO_V1: |
1553 | case ALPS_PROTO_V2: | |
24af5cb9 KC |
1554 | priv->hw_init = alps_hw_init_v1_v2; |
1555 | priv->process_packet = alps_process_packet_v1_v2; | |
1556 | priv->set_abs_params = alps_set_abs_params_st; | |
25bded7c SF |
1557 | break; |
1558 | case ALPS_PROTO_V3: | |
24af5cb9 KC |
1559 | priv->hw_init = alps_hw_init_v3; |
1560 | priv->process_packet = alps_process_packet_v3; | |
1561 | priv->set_abs_params = alps_set_abs_params_mt; | |
f85e5001 | 1562 | priv->decode_fields = alps_decode_pinnacle; |
50e8b216 KC |
1563 | priv->nibble_commands = alps_v3_nibble_commands; |
1564 | priv->addr_command = PSMOUSE_CMD_RESET_WRAP; | |
25bded7c SF |
1565 | break; |
1566 | case ALPS_PROTO_V4: | |
24af5cb9 KC |
1567 | priv->hw_init = alps_hw_init_v4; |
1568 | priv->process_packet = alps_process_packet_v4; | |
1569 | priv->set_abs_params = alps_set_abs_params_mt; | |
50e8b216 KC |
1570 | priv->nibble_commands = alps_v4_nibble_commands; |
1571 | priv->addr_command = PSMOUSE_CMD_DISABLE; | |
25bded7c | 1572 | break; |
75af9e56 DT |
1573 | case ALPS_PROTO_V5: |
1574 | priv->hw_init = alps_hw_init_dolphin_v1; | |
1575 | priv->process_packet = alps_process_packet_v3; | |
1576 | priv->decode_fields = alps_decode_dolphin; | |
1577 | priv->set_abs_params = alps_set_abs_params_mt; | |
1578 | priv->nibble_commands = alps_v3_nibble_commands; | |
1579 | priv->addr_command = PSMOUSE_CMD_RESET_WRAP; | |
1580 | priv->byte0 = 0xc8; | |
1581 | priv->mask0 = 0xc8; | |
1582 | priv->flags = 0; | |
1583 | priv->x_max = 1360; | |
1584 | priv->y_max = 660; | |
1585 | priv->x_bits = 23; | |
1586 | priv->y_bits = 12; | |
1587 | break; | |
25bded7c | 1588 | } |
25bded7c SF |
1589 | } |
1590 | ||
b5d6b851 KC |
1591 | static int alps_match_table(struct psmouse *psmouse, struct alps_data *priv, |
1592 | unsigned char *e7, unsigned char *ec) | |
2e992cc0 | 1593 | { |
b5d6b851 | 1594 | const struct alps_model_info *model; |
2e992cc0 KC |
1595 | int i; |
1596 | ||
b5d6b851 KC |
1597 | for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { |
1598 | model = &alps_model_data[i]; | |
1599 | ||
1600 | if (!memcmp(e7, model->signature, sizeof(model->signature)) && | |
1601 | (!model->command_mode_resp || | |
1602 | model->command_mode_resp == ec[2])) { | |
1603 | ||
1604 | priv->proto_version = model->proto_version; | |
24af5cb9 KC |
1605 | alps_set_defaults(priv); |
1606 | ||
b5d6b851 KC |
1607 | priv->flags = model->flags; |
1608 | priv->byte0 = model->byte0; | |
1609 | priv->mask0 = model->mask0; | |
1610 | ||
1611 | return 0; | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | return -EINVAL; | |
1616 | } | |
1617 | ||
1618 | static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) | |
1619 | { | |
1620 | unsigned char e6[4], e7[4], ec[4]; | |
1621 | ||
2e992cc0 KC |
1622 | /* |
1623 | * First try "E6 report". | |
1624 | * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. | |
1625 | * The bits 0-2 of the first byte will be 1s if some buttons are | |
1626 | * pressed. | |
1627 | */ | |
b5d6b851 KC |
1628 | if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, |
1629 | PSMOUSE_CMD_SETSCALE11, e6)) | |
1630 | return -EIO; | |
2e992cc0 | 1631 | |
b5d6b851 KC |
1632 | if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) |
1633 | return -EINVAL; | |
2e992cc0 KC |
1634 | |
1635 | /* | |
b5d6b851 KC |
1636 | * Now get the "E7" and "EC" reports. These will uniquely identify |
1637 | * most ALPS touchpads. | |
2e992cc0 | 1638 | */ |
b5d6b851 KC |
1639 | if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, |
1640 | PSMOUSE_CMD_SETSCALE21, e7) || | |
1641 | alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, | |
1642 | PSMOUSE_CMD_RESET_WRAP, ec) || | |
1643 | alps_exit_command_mode(psmouse)) | |
1644 | return -EIO; | |
2e992cc0 | 1645 | |
f673ceb1 | 1646 | if (alps_match_table(psmouse, priv, e7, ec) == 0) { |
75af9e56 DT |
1647 | return 0; |
1648 | } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && | |
1649 | ec[0] == 0x73 && ec[1] == 0x01) { | |
1650 | priv->proto_version = ALPS_PROTO_V5; | |
1651 | alps_set_defaults(priv); | |
1652 | ||
1302bac3 KC |
1653 | return 0; |
1654 | } else if (ec[0] == 0x88 && ec[1] == 0x08) { | |
1655 | priv->proto_version = ALPS_PROTO_V3; | |
1656 | alps_set_defaults(priv); | |
1657 | ||
1658 | priv->hw_init = alps_hw_init_rushmore_v3; | |
1659 | priv->decode_fields = alps_decode_rushmore; | |
1660 | priv->x_bits = 16; | |
1661 | priv->y_bits = 12; | |
1662 | ||
cd401204 KC |
1663 | /* hack to make addr_command, nibble_command available */ |
1664 | psmouse->private = priv; | |
1665 | ||
1666 | if (alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_RUSHMORE)) | |
1667 | priv->flags &= ~ALPS_DUALPOINT; | |
1668 | ||
f673ceb1 KC |
1669 | return 0; |
1670 | } else if (ec[0] == 0x88 && ec[1] == 0x07 && | |
1671 | ec[2] >= 0x90 && ec[2] <= 0x9d) { | |
1672 | priv->proto_version = ALPS_PROTO_V3; | |
1673 | alps_set_defaults(priv); | |
1674 | ||
b5d6b851 | 1675 | return 0; |
f673ceb1 | 1676 | } |
2e992cc0 | 1677 | |
b5d6b851 KC |
1678 | psmouse_info(psmouse, |
1679 | "Unknown ALPS touchpad: E7=%2.2x %2.2x %2.2x, EC=%2.2x %2.2x %2.2x\n", | |
1680 | e7[0], e7[1], e7[2], ec[0], ec[1], ec[2]); | |
2e992cc0 | 1681 | |
b5d6b851 | 1682 | return -EINVAL; |
2e992cc0 KC |
1683 | } |
1684 | ||
1e0c5b12 DT |
1685 | static int alps_reconnect(struct psmouse *psmouse) |
1686 | { | |
b5d6b851 | 1687 | struct alps_data *priv = psmouse->private; |
71bb21b6 | 1688 | |
1e0c5b12 DT |
1689 | psmouse_reset(psmouse); |
1690 | ||
b5d6b851 | 1691 | if (alps_identify(psmouse, priv) < 0) |
1e0c5b12 DT |
1692 | return -1; |
1693 | ||
24af5cb9 | 1694 | return priv->hw_init(psmouse); |
1da177e4 LT |
1695 | } |
1696 | ||
1697 | static void alps_disconnect(struct psmouse *psmouse) | |
1698 | { | |
1699 | struct alps_data *priv = psmouse->private; | |
2e5b636b | 1700 | |
1da177e4 | 1701 | psmouse_reset(psmouse); |
1d9f2626 | 1702 | del_timer_sync(&priv->timer); |
2e5b636b | 1703 | input_unregister_device(priv->dev2); |
1da177e4 LT |
1704 | kfree(priv); |
1705 | } | |
1706 | ||
24af5cb9 KC |
1707 | static void alps_set_abs_params_st(struct alps_data *priv, |
1708 | struct input_dev *dev1) | |
1709 | { | |
1710 | input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0); | |
1711 | input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0); | |
1712 | } | |
1713 | ||
1714 | static void alps_set_abs_params_mt(struct alps_data *priv, | |
1715 | struct input_dev *dev1) | |
1716 | { | |
1717 | set_bit(INPUT_PROP_SEMI_MT, dev1->propbit); | |
1718 | input_mt_init_slots(dev1, 2, 0); | |
7a9f73e7 KC |
1719 | input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); |
1720 | input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); | |
24af5cb9 KC |
1721 | |
1722 | set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit); | |
1723 | set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); | |
1724 | set_bit(BTN_TOOL_QUADTAP, dev1->keybit); | |
1725 | ||
7a9f73e7 KC |
1726 | input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); |
1727 | input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); | |
24af5cb9 KC |
1728 | } |
1729 | ||
1da177e4 LT |
1730 | int alps_init(struct psmouse *psmouse) |
1731 | { | |
1732 | struct alps_data *priv; | |
2e5b636b | 1733 | struct input_dev *dev1 = psmouse->dev, *dev2; |
1da177e4 | 1734 | |
f42649e8 | 1735 | priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); |
2e5b636b DT |
1736 | dev2 = input_allocate_device(); |
1737 | if (!priv || !dev2) | |
1da177e4 | 1738 | goto init_fail; |
2e5b636b DT |
1739 | |
1740 | priv->dev2 = dev2; | |
1d9f2626 SK |
1741 | setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); |
1742 | ||
1e0c5b12 | 1743 | psmouse->private = priv; |
1da177e4 | 1744 | |
25bded7c SF |
1745 | psmouse_reset(psmouse); |
1746 | ||
b5d6b851 | 1747 | if (alps_identify(psmouse, priv) < 0) |
71bb21b6 ML |
1748 | goto init_fail; |
1749 | ||
24af5cb9 | 1750 | if (priv->hw_init(psmouse)) |
1da177e4 LT |
1751 | goto init_fail; |
1752 | ||
7105d2ea DT |
1753 | /* |
1754 | * Undo part of setup done for us by psmouse core since touchpad | |
1755 | * is not a relative device. | |
1756 | */ | |
1757 | __clear_bit(EV_REL, dev1->evbit); | |
1758 | __clear_bit(REL_X, dev1->relbit); | |
1759 | __clear_bit(REL_Y, dev1->relbit); | |
1760 | ||
1761 | /* | |
1762 | * Now set up our capabilities. | |
1763 | */ | |
7b19ada2 JS |
1764 | dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); |
1765 | dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); | |
1766 | dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); | |
71bb21b6 ML |
1767 | dev1->keybit[BIT_WORD(BTN_LEFT)] |= |
1768 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
1da177e4 | 1769 | |
7b19ada2 | 1770 | dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); |
25bded7c | 1771 | |
24af5cb9 | 1772 | priv->set_abs_params(priv, dev1); |
2e5b636b | 1773 | input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); |
1da177e4 | 1774 | |
99df65e7 | 1775 | if (priv->flags & ALPS_WHEEL) { |
7b19ada2 JS |
1776 | dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); |
1777 | dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); | |
1da177e4 LT |
1778 | } |
1779 | ||
99df65e7 | 1780 | if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
7b19ada2 JS |
1781 | dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); |
1782 | dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); | |
1da177e4 LT |
1783 | } |
1784 | ||
99df65e7 | 1785 | if (priv->flags & ALPS_FOUR_BUTTONS) { |
71bb21b6 ML |
1786 | dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); |
1787 | dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); | |
1788 | dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); | |
1789 | dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); | |
1790 | } else { | |
1791 | dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); | |
1792 | } | |
1793 | ||
08ffce45 | 1794 | snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); |
2e5b636b | 1795 | dev2->phys = priv->phys; |
99df65e7 KC |
1796 | dev2->name = (priv->flags & ALPS_DUALPOINT) ? |
1797 | "DualPoint Stick" : "PS/2 Mouse"; | |
2e5b636b DT |
1798 | dev2->id.bustype = BUS_I8042; |
1799 | dev2->id.vendor = 0x0002; | |
1800 | dev2->id.product = PSMOUSE_ALPS; | |
1801 | dev2->id.version = 0x0000; | |
1db3a345 | 1802 | dev2->dev.parent = &psmouse->ps2dev.serio->dev; |
1da177e4 | 1803 | |
7b19ada2 | 1804 | dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
71bb21b6 ML |
1805 | dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
1806 | dev2->keybit[BIT_WORD(BTN_LEFT)] = | |
1807 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); | |
1da177e4 | 1808 | |
f42649e8 DT |
1809 | if (input_register_device(priv->dev2)) |
1810 | goto init_fail; | |
1da177e4 LT |
1811 | |
1812 | psmouse->protocol_handler = alps_process_byte; | |
f0d5c6f4 | 1813 | psmouse->poll = alps_poll; |
1da177e4 LT |
1814 | psmouse->disconnect = alps_disconnect; |
1815 | psmouse->reconnect = alps_reconnect; | |
99df65e7 | 1816 | psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; |
1da177e4 | 1817 | |
f0d5c6f4 DT |
1818 | /* We are having trouble resyncing ALPS touchpads so disable it for now */ |
1819 | psmouse->resync_time = 0; | |
1820 | ||
1da177e4 LT |
1821 | return 0; |
1822 | ||
1823 | init_fail: | |
f42649e8 | 1824 | psmouse_reset(psmouse); |
2e5b636b | 1825 | input_free_device(dev2); |
1da177e4 | 1826 | kfree(priv); |
1e0c5b12 | 1827 | psmouse->private = NULL; |
1da177e4 LT |
1828 | return -1; |
1829 | } | |
1830 | ||
b7802c5c | 1831 | int alps_detect(struct psmouse *psmouse, bool set_properties) |
1da177e4 | 1832 | { |
b5d6b851 | 1833 | struct alps_data dummy; |
1da177e4 | 1834 | |
b5d6b851 | 1835 | if (alps_identify(psmouse, &dummy) < 0) |
1da177e4 LT |
1836 | return -1; |
1837 | ||
1838 | if (set_properties) { | |
1839 | psmouse->vendor = "ALPS"; | |
b5d6b851 | 1840 | psmouse->name = dummy.flags & ALPS_DUALPOINT ? |
968ac842 | 1841 | "DualPoint TouchPad" : "GlidePoint"; |
b5d6b851 | 1842 | psmouse->model = dummy.proto_version << 8; |
1da177e4 LT |
1843 | } |
1844 | return 0; | |
1845 | } | |
1846 |