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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 | */ | |
01ce661f SF |
30 | #define ALPS_V3_X_MAX 2000 |
31 | #define ALPS_V3_Y_MAX 1400 | |
32 | ||
33 | #define ALPS_BITMAP_X_BITS 15 | |
34 | #define ALPS_BITMAP_Y_BITS 11 | |
35 | ||
25bded7c SF |
36 | #define ALPS_CMD_NIBBLE_10 0x01f2 |
37 | ||
38 | static const struct alps_nibble_commands alps_v3_nibble_commands[] = { | |
39 | { PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */ | |
40 | { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ | |
41 | { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ | |
42 | { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ | |
43 | { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ | |
44 | { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ | |
45 | { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ | |
46 | { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ | |
47 | { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ | |
48 | { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ | |
49 | { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ | |
50 | { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ | |
51 | { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ | |
52 | { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ | |
53 | { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ | |
54 | { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ | |
55 | }; | |
56 | ||
57 | static const struct alps_nibble_commands alps_v4_nibble_commands[] = { | |
58 | { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ | |
59 | { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ | |
60 | { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ | |
61 | { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ | |
62 | { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ | |
63 | { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ | |
64 | { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ | |
65 | { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ | |
66 | { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ | |
67 | { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ | |
68 | { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ | |
69 | { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ | |
70 | { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ | |
71 | { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ | |
72 | { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ | |
73 | { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ | |
74 | }; | |
75 | ||
76 | ||
71bb21b6 ML |
77 | #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ |
78 | #define ALPS_PASS 0x04 /* device has a pass-through port */ | |
79 | ||
80 | #define ALPS_WHEEL 0x08 /* hardware wheel present */ | |
81 | #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ | |
82 | #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ | |
83 | #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ | |
1d9f2626 SK |
84 | #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with |
85 | 6-byte ALPS packet */ | |
1da177e4 | 86 | |
e38de678 | 87 | static const struct alps_model_info alps_model_data[] = { |
25bded7c SF |
88 | { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ |
89 | { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */ | |
90 | { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
91 | { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
92 | { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */ | |
93 | { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
94 | { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
95 | { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ | |
96 | { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ | |
97 | { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ | |
98 | { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
99 | { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ | |
100 | { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ | |
101 | { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, | |
102 | { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ | |
103 | { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ | |
104 | { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, | |
105 | { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ | |
1d9f2626 | 106 | /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ |
25bded7c | 107 | { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, |
1d9f2626 | 108 | ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, |
25bded7c SF |
109 | { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ |
110 | { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, | |
111 | ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */ | |
112 | { { 0x73, 0x02, 0x64 }, 0x9b, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT }, | |
113 | { { 0x73, 0x02, 0x64 }, 0x9d, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT }, | |
114 | { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 }, | |
1da177e4 LT |
115 | }; |
116 | ||
24af5cb9 KC |
117 | static void alps_set_abs_params_st(struct alps_data *priv, |
118 | struct input_dev *dev1); | |
119 | static void alps_set_abs_params_mt(struct alps_data *priv, | |
120 | struct input_dev *dev1); | |
121 | ||
1da177e4 LT |
122 | /* |
123 | * XXX - this entry is suspicious. First byte has zero lower nibble, | |
124 | * which is what a normal mouse would report. Also, the value 0x0e | |
125 | * isn't valid per PS/2 spec. | |
126 | */ | |
127 | ||
d4b347b2 | 128 | /* Packet formats are described in Documentation/input/alps.txt */ |
1da177e4 | 129 | |
99df65e7 | 130 | static bool alps_is_valid_first_byte(struct alps_data *priv, |
1d9f2626 SK |
131 | unsigned char data) |
132 | { | |
99df65e7 | 133 | return (data & priv->mask0) == priv->byte0; |
1d9f2626 SK |
134 | } |
135 | ||
136 | static void alps_report_buttons(struct psmouse *psmouse, | |
137 | struct input_dev *dev1, struct input_dev *dev2, | |
138 | int left, int right, int middle) | |
139 | { | |
c91ed059 MB |
140 | struct input_dev *dev; |
141 | ||
142 | /* | |
143 | * If shared button has already been reported on the | |
144 | * other device (dev2) then this event should be also | |
145 | * sent through that device. | |
146 | */ | |
147 | dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1; | |
148 | input_report_key(dev, BTN_LEFT, left); | |
149 | ||
150 | dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1; | |
151 | input_report_key(dev, BTN_RIGHT, right); | |
152 | ||
153 | dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1; | |
154 | input_report_key(dev, BTN_MIDDLE, middle); | |
155 | ||
156 | /* | |
157 | * Sync the _other_ device now, we'll do the first | |
158 | * device later once we report the rest of the events. | |
159 | */ | |
160 | input_sync(dev2); | |
1d9f2626 SK |
161 | } |
162 | ||
25bded7c | 163 | static void alps_process_packet_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
164 | { |
165 | struct alps_data *priv = psmouse->private; | |
166 | unsigned char *packet = psmouse->packet; | |
2e5b636b DT |
167 | struct input_dev *dev = psmouse->dev; |
168 | struct input_dev *dev2 = priv->dev2; | |
1da177e4 | 169 | int x, y, z, ges, fin, left, right, middle; |
c30b4c10 | 170 | int back = 0, forward = 0; |
1da177e4 | 171 | |
99df65e7 | 172 | if (priv->proto_version == ALPS_PROTO_V1) { |
d2f4012f YM |
173 | left = packet[2] & 0x10; |
174 | right = packet[2] & 0x08; | |
1da177e4 LT |
175 | middle = 0; |
176 | x = packet[1] | ((packet[0] & 0x07) << 7); | |
177 | y = packet[4] | ((packet[3] & 0x07) << 7); | |
178 | z = packet[5]; | |
179 | } else { | |
180 | left = packet[3] & 1; | |
181 | right = packet[3] & 2; | |
182 | middle = packet[3] & 4; | |
183 | x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); | |
184 | y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); | |
185 | z = packet[5]; | |
186 | } | |
187 | ||
99df65e7 | 188 | if (priv->flags & ALPS_FW_BK_1) { |
3c00bb96 LK |
189 | back = packet[0] & 0x10; |
190 | forward = packet[2] & 4; | |
c30b4c10 ICR |
191 | } |
192 | ||
99df65e7 | 193 | if (priv->flags & ALPS_FW_BK_2) { |
c30b4c10 ICR |
194 | back = packet[3] & 4; |
195 | forward = packet[2] & 4; | |
196 | if ((middle = forward && back)) | |
197 | forward = back = 0; | |
198 | } | |
199 | ||
1da177e4 LT |
200 | ges = packet[2] & 1; |
201 | fin = packet[2] & 2; | |
202 | ||
99df65e7 | 203 | if ((priv->flags & ALPS_DUALPOINT) && z == 127) { |
1da177e4 LT |
204 | input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); |
205 | input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); | |
d7ed5d88 | 206 | |
1d9f2626 | 207 | alps_report_buttons(psmouse, dev2, dev, left, right, middle); |
d7ed5d88 | 208 | |
1da177e4 LT |
209 | input_sync(dev2); |
210 | return; | |
211 | } | |
212 | ||
1d9f2626 | 213 | alps_report_buttons(psmouse, dev, dev2, left, right, middle); |
d7ed5d88 | 214 | |
1da177e4 | 215 | /* Convert hardware tap to a reasonable Z value */ |
71bb21b6 ML |
216 | if (ges && !fin) |
217 | z = 40; | |
1da177e4 LT |
218 | |
219 | /* | |
220 | * A "tap and drag" operation is reported by the hardware as a transition | |
221 | * from (!fin && ges) to (fin && ges). This should be translated to the | |
222 | * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. | |
223 | */ | |
224 | if (ges && fin && !priv->prev_fin) { | |
225 | input_report_abs(dev, ABS_X, x); | |
226 | input_report_abs(dev, ABS_Y, y); | |
227 | input_report_abs(dev, ABS_PRESSURE, 0); | |
228 | input_report_key(dev, BTN_TOOL_FINGER, 0); | |
229 | input_sync(dev); | |
230 | } | |
231 | priv->prev_fin = fin; | |
232 | ||
71bb21b6 ML |
233 | if (z > 30) |
234 | input_report_key(dev, BTN_TOUCH, 1); | |
235 | if (z < 25) | |
236 | input_report_key(dev, BTN_TOUCH, 0); | |
1da177e4 LT |
237 | |
238 | if (z > 0) { | |
239 | input_report_abs(dev, ABS_X, x); | |
240 | input_report_abs(dev, ABS_Y, y); | |
241 | } | |
242 | ||
243 | input_report_abs(dev, ABS_PRESSURE, z); | |
244 | input_report_key(dev, BTN_TOOL_FINGER, z > 0); | |
245 | ||
99df65e7 | 246 | if (priv->flags & ALPS_WHEEL) |
e6c047b9 | 247 | input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); |
1da177e4 | 248 | |
99df65e7 | 249 | if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
c30b4c10 ICR |
250 | input_report_key(dev, BTN_FORWARD, forward); |
251 | input_report_key(dev, BTN_BACK, back); | |
1da177e4 LT |
252 | } |
253 | ||
99df65e7 | 254 | if (priv->flags & ALPS_FOUR_BUTTONS) { |
71bb21b6 ML |
255 | input_report_key(dev, BTN_0, packet[2] & 4); |
256 | input_report_key(dev, BTN_1, packet[0] & 0x10); | |
257 | input_report_key(dev, BTN_2, packet[3] & 4); | |
258 | input_report_key(dev, BTN_3, packet[0] & 0x20); | |
259 | } | |
260 | ||
1da177e4 LT |
261 | input_sync(dev); |
262 | } | |
263 | ||
01ce661f SF |
264 | /* |
265 | * Process bitmap data from v3 and v4 protocols. Returns the number of | |
266 | * fingers detected. A return value of 0 means at least one of the | |
267 | * bitmaps was empty. | |
268 | * | |
269 | * The bitmaps don't have enough data to track fingers, so this function | |
270 | * only generates points representing a bounding box of all contacts. | |
271 | * These points are returned in x1, y1, x2, and y2 when the return value | |
272 | * is greater than 0. | |
273 | */ | |
274 | static int alps_process_bitmap(unsigned int x_map, unsigned int y_map, | |
275 | int *x1, int *y1, int *x2, int *y2) | |
276 | { | |
277 | struct alps_bitmap_point { | |
278 | int start_bit; | |
279 | int num_bits; | |
280 | }; | |
281 | ||
282 | int fingers_x = 0, fingers_y = 0, fingers; | |
283 | int i, bit, prev_bit; | |
284 | struct alps_bitmap_point x_low = {0,}, x_high = {0,}; | |
285 | struct alps_bitmap_point y_low = {0,}, y_high = {0,}; | |
286 | struct alps_bitmap_point *point; | |
287 | ||
288 | if (!x_map || !y_map) | |
289 | return 0; | |
290 | ||
291 | *x1 = *y1 = *x2 = *y2 = 0; | |
292 | ||
293 | prev_bit = 0; | |
294 | point = &x_low; | |
295 | for (i = 0; x_map != 0; i++, x_map >>= 1) { | |
296 | bit = x_map & 1; | |
297 | if (bit) { | |
298 | if (!prev_bit) { | |
299 | point->start_bit = i; | |
300 | fingers_x++; | |
301 | } | |
302 | point->num_bits++; | |
303 | } else { | |
304 | if (prev_bit) | |
305 | point = &x_high; | |
306 | else | |
307 | point->num_bits = 0; | |
308 | } | |
309 | prev_bit = bit; | |
310 | } | |
311 | ||
312 | /* | |
313 | * y bitmap is reversed for what we need (lower positions are in | |
314 | * higher bits), so we process from the top end. | |
315 | */ | |
316 | y_map = y_map << (sizeof(y_map) * BITS_PER_BYTE - ALPS_BITMAP_Y_BITS); | |
317 | prev_bit = 0; | |
318 | point = &y_low; | |
319 | for (i = 0; y_map != 0; i++, y_map <<= 1) { | |
320 | bit = y_map & (1 << (sizeof(y_map) * BITS_PER_BYTE - 1)); | |
321 | if (bit) { | |
322 | if (!prev_bit) { | |
323 | point->start_bit = i; | |
324 | fingers_y++; | |
325 | } | |
326 | point->num_bits++; | |
327 | } else { | |
328 | if (prev_bit) | |
329 | point = &y_high; | |
330 | else | |
331 | point->num_bits = 0; | |
332 | } | |
333 | prev_bit = bit; | |
334 | } | |
335 | ||
336 | /* | |
337 | * Fingers can overlap, so we use the maximum count of fingers | |
338 | * on either axis as the finger count. | |
339 | */ | |
340 | fingers = max(fingers_x, fingers_y); | |
341 | ||
342 | /* | |
343 | * If total fingers is > 1 but either axis reports only a single | |
344 | * contact, we have overlapping or adjacent fingers. For the | |
345 | * purposes of creating a bounding box, divide the single contact | |
346 | * (roughly) equally between the two points. | |
347 | */ | |
348 | if (fingers > 1) { | |
349 | if (fingers_x == 1) { | |
350 | i = x_low.num_bits / 2; | |
351 | x_low.num_bits = x_low.num_bits - i; | |
352 | x_high.start_bit = x_low.start_bit + i; | |
353 | x_high.num_bits = max(i, 1); | |
354 | } else if (fingers_y == 1) { | |
355 | i = y_low.num_bits / 2; | |
356 | y_low.num_bits = y_low.num_bits - i; | |
357 | y_high.start_bit = y_low.start_bit + i; | |
358 | y_high.num_bits = max(i, 1); | |
359 | } | |
360 | } | |
361 | ||
362 | *x1 = (ALPS_V3_X_MAX * (2 * x_low.start_bit + x_low.num_bits - 1)) / | |
363 | (2 * (ALPS_BITMAP_X_BITS - 1)); | |
364 | *y1 = (ALPS_V3_Y_MAX * (2 * y_low.start_bit + y_low.num_bits - 1)) / | |
365 | (2 * (ALPS_BITMAP_Y_BITS - 1)); | |
366 | ||
367 | if (fingers > 1) { | |
368 | *x2 = (ALPS_V3_X_MAX * (2 * x_high.start_bit + x_high.num_bits - 1)) / | |
369 | (2 * (ALPS_BITMAP_X_BITS - 1)); | |
370 | *y2 = (ALPS_V3_Y_MAX * (2 * y_high.start_bit + y_high.num_bits - 1)) / | |
371 | (2 * (ALPS_BITMAP_Y_BITS - 1)); | |
372 | } | |
373 | ||
374 | return fingers; | |
375 | } | |
376 | ||
377 | static void alps_set_slot(struct input_dev *dev, int slot, bool active, | |
378 | int x, int y) | |
379 | { | |
380 | input_mt_slot(dev, slot); | |
381 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
382 | if (active) { | |
383 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
384 | input_report_abs(dev, ABS_MT_POSITION_Y, y); | |
385 | } | |
386 | } | |
387 | ||
388 | static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers, | |
389 | int x1, int y1, int x2, int y2) | |
390 | { | |
391 | alps_set_slot(dev, 0, num_fingers != 0, x1, y1); | |
392 | alps_set_slot(dev, 1, num_fingers == 2, x2, y2); | |
393 | } | |
394 | ||
25bded7c SF |
395 | static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) |
396 | { | |
397 | struct alps_data *priv = psmouse->private; | |
398 | unsigned char *packet = psmouse->packet; | |
399 | struct input_dev *dev = priv->dev2; | |
400 | int x, y, z, left, right, middle; | |
401 | ||
402 | /* Sanity check packet */ | |
403 | if (!(packet[0] & 0x40)) { | |
404 | psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); | |
405 | return; | |
406 | } | |
407 | ||
408 | /* | |
409 | * There's a special packet that seems to indicate the end | |
410 | * of a stream of trackstick data. Filter these out. | |
411 | */ | |
412 | if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) | |
413 | return; | |
414 | ||
415 | x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); | |
416 | y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); | |
417 | z = (packet[4] & 0x7c) >> 2; | |
418 | ||
419 | /* | |
420 | * The x and y values tend to be quite large, and when used | |
421 | * alone the trackstick is difficult to use. Scale them down | |
422 | * to compensate. | |
423 | */ | |
424 | x /= 8; | |
425 | y /= 8; | |
426 | ||
427 | input_report_rel(dev, REL_X, x); | |
428 | input_report_rel(dev, REL_Y, -y); | |
429 | ||
430 | /* | |
431 | * Most ALPS models report the trackstick buttons in the touchpad | |
432 | * packets, but a few report them here. No reliable way has been | |
433 | * found to differentiate between the models upfront, so we enable | |
434 | * the quirk in response to seeing a button press in the trackstick | |
435 | * packet. | |
436 | */ | |
437 | left = packet[3] & 0x01; | |
438 | right = packet[3] & 0x02; | |
439 | middle = packet[3] & 0x04; | |
440 | ||
441 | if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && | |
442 | (left || right || middle)) | |
443 | priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; | |
444 | ||
445 | if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { | |
446 | input_report_key(dev, BTN_LEFT, left); | |
447 | input_report_key(dev, BTN_RIGHT, right); | |
448 | input_report_key(dev, BTN_MIDDLE, middle); | |
449 | } | |
450 | ||
451 | input_sync(dev); | |
452 | return; | |
453 | } | |
454 | ||
455 | static void alps_process_touchpad_packet_v3(struct psmouse *psmouse) | |
456 | { | |
457 | struct alps_data *priv = psmouse->private; | |
458 | unsigned char *packet = psmouse->packet; | |
459 | struct input_dev *dev = psmouse->dev; | |
460 | struct input_dev *dev2 = priv->dev2; | |
461 | int x, y, z; | |
462 | int left, right, middle; | |
01ce661f SF |
463 | int x1 = 0, y1 = 0, x2 = 0, y2 = 0; |
464 | int fingers = 0, bmap_fingers; | |
465 | unsigned int x_bitmap, y_bitmap; | |
25bded7c SF |
466 | |
467 | /* | |
01ce661f SF |
468 | * There's no single feature of touchpad position and bitmap packets |
469 | * that can be used to distinguish between them. We rely on the fact | |
470 | * that a bitmap packet should always follow a position packet with | |
471 | * bit 6 of packet[4] set. | |
25bded7c SF |
472 | */ |
473 | if (priv->multi_packet) { | |
25bded7c SF |
474 | /* |
475 | * Sometimes a position packet will indicate a multi-packet | |
476 | * sequence, but then what follows is another position | |
477 | * packet. Check for this, and when it happens process the | |
478 | * position packet as usual. | |
479 | */ | |
480 | if (packet[0] & 0x40) { | |
01ce661f SF |
481 | fingers = (packet[5] & 0x3) + 1; |
482 | x_bitmap = ((packet[4] & 0x7e) << 8) | | |
483 | ((packet[1] & 0x7f) << 2) | | |
484 | ((packet[0] & 0x30) >> 4); | |
485 | y_bitmap = ((packet[3] & 0x70) << 4) | | |
486 | ((packet[2] & 0x7f) << 1) | | |
487 | (packet[4] & 0x01); | |
488 | ||
489 | bmap_fingers = alps_process_bitmap(x_bitmap, y_bitmap, | |
490 | &x1, &y1, &x2, &y2); | |
491 | ||
25bded7c | 492 | /* |
01ce661f SF |
493 | * We shouldn't report more than one finger if |
494 | * we don't have two coordinates. | |
25bded7c | 495 | */ |
01ce661f SF |
496 | if (fingers > 1 && bmap_fingers < 2) |
497 | fingers = bmap_fingers; | |
498 | ||
499 | /* Now process position packet */ | |
500 | packet = priv->multi_data; | |
501 | } else { | |
502 | priv->multi_packet = 0; | |
25bded7c SF |
503 | } |
504 | } | |
505 | ||
01ce661f SF |
506 | /* |
507 | * Bit 6 of byte 0 is not usually set in position packets. The only | |
508 | * times it seems to be set is in situations where the data is | |
509 | * suspect anyway, e.g. a palm resting flat on the touchpad. Given | |
510 | * this combined with the fact that this bit is useful for filtering | |
511 | * out misidentified bitmap packets, we reject anything with this | |
512 | * bit set. | |
513 | */ | |
514 | if (packet[0] & 0x40) | |
515 | return; | |
516 | ||
517 | if (!priv->multi_packet && (packet[4] & 0x40)) { | |
25bded7c | 518 | priv->multi_packet = 1; |
01ce661f SF |
519 | memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); |
520 | return; | |
521 | } | |
522 | ||
523 | priv->multi_packet = 0; | |
25bded7c SF |
524 | |
525 | left = packet[3] & 0x01; | |
526 | right = packet[3] & 0x02; | |
527 | middle = packet[3] & 0x04; | |
528 | ||
529 | x = ((packet[1] & 0x7f) << 4) | ((packet[4] & 0x30) >> 2) | | |
530 | ((packet[0] & 0x30) >> 4); | |
531 | y = ((packet[2] & 0x7f) << 4) | (packet[4] & 0x0f); | |
532 | z = packet[5] & 0x7f; | |
533 | ||
534 | /* | |
535 | * Sometimes the hardware sends a single packet with z = 0 | |
536 | * in the middle of a stream. Real releases generate packets | |
537 | * with x, y, and z all zero, so these seem to be flukes. | |
538 | * Ignore them. | |
539 | */ | |
540 | if (x && y && !z) | |
541 | return; | |
542 | ||
01ce661f SF |
543 | /* |
544 | * If we don't have MT data or the bitmaps were empty, we have | |
545 | * to rely on ST data. | |
546 | */ | |
547 | if (!fingers) { | |
548 | x1 = x; | |
549 | y1 = y; | |
550 | fingers = z > 0 ? 1 : 0; | |
551 | } | |
552 | ||
25bded7c SF |
553 | if (z >= 64) |
554 | input_report_key(dev, BTN_TOUCH, 1); | |
555 | else | |
556 | input_report_key(dev, BTN_TOUCH, 0); | |
557 | ||
01ce661f SF |
558 | alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); |
559 | ||
616575c2 | 560 | input_mt_report_finger_count(dev, fingers); |
01ce661f SF |
561 | |
562 | input_report_key(dev, BTN_LEFT, left); | |
563 | input_report_key(dev, BTN_RIGHT, right); | |
564 | input_report_key(dev, BTN_MIDDLE, middle); | |
565 | ||
25bded7c SF |
566 | if (z > 0) { |
567 | input_report_abs(dev, ABS_X, x); | |
568 | input_report_abs(dev, ABS_Y, y); | |
569 | } | |
570 | input_report_abs(dev, ABS_PRESSURE, z); | |
571 | ||
25bded7c SF |
572 | input_sync(dev); |
573 | ||
574 | if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { | |
575 | left = packet[3] & 0x10; | |
576 | right = packet[3] & 0x20; | |
577 | middle = packet[3] & 0x40; | |
578 | ||
579 | input_report_key(dev2, BTN_LEFT, left); | |
580 | input_report_key(dev2, BTN_RIGHT, right); | |
581 | input_report_key(dev2, BTN_MIDDLE, middle); | |
582 | input_sync(dev2); | |
583 | } | |
584 | } | |
585 | ||
586 | static void alps_process_packet_v3(struct psmouse *psmouse) | |
587 | { | |
588 | unsigned char *packet = psmouse->packet; | |
589 | ||
590 | /* | |
591 | * v3 protocol packets come in three types, two representing | |
592 | * touchpad data and one representing trackstick data. | |
593 | * Trackstick packets seem to be distinguished by always | |
594 | * having 0x3f in the last byte. This value has never been | |
595 | * observed in the last byte of either of the other types | |
596 | * of packets. | |
597 | */ | |
598 | if (packet[5] == 0x3f) { | |
599 | alps_process_trackstick_packet_v3(psmouse); | |
600 | return; | |
601 | } | |
602 | ||
603 | alps_process_touchpad_packet_v3(psmouse); | |
604 | } | |
605 | ||
606 | static void alps_process_packet_v4(struct psmouse *psmouse) | |
607 | { | |
3b7e09fa | 608 | struct alps_data *priv = psmouse->private; |
25bded7c SF |
609 | unsigned char *packet = psmouse->packet; |
610 | struct input_dev *dev = psmouse->dev; | |
3b7e09fa | 611 | int offset; |
25bded7c SF |
612 | int x, y, z; |
613 | int left, right; | |
3b7e09fa GP |
614 | int x1, y1, x2, y2; |
615 | int fingers = 0; | |
616 | unsigned int x_bitmap, y_bitmap; | |
617 | ||
618 | /* | |
619 | * v4 has a 6-byte encoding for bitmap data, but this data is | |
620 | * broken up between 3 normal packets. Use priv->multi_packet to | |
621 | * track our position in the bitmap packet. | |
622 | */ | |
623 | if (packet[6] & 0x40) { | |
624 | /* sync, reset position */ | |
625 | priv->multi_packet = 0; | |
626 | } | |
627 | ||
628 | if (WARN_ON_ONCE(priv->multi_packet > 2)) | |
629 | return; | |
630 | ||
631 | offset = 2 * priv->multi_packet; | |
632 | priv->multi_data[offset] = packet[6]; | |
633 | priv->multi_data[offset + 1] = packet[7]; | |
634 | ||
635 | if (++priv->multi_packet > 2) { | |
636 | priv->multi_packet = 0; | |
637 | ||
638 | x_bitmap = ((priv->multi_data[2] & 0x1f) << 10) | | |
639 | ((priv->multi_data[3] & 0x60) << 3) | | |
640 | ((priv->multi_data[0] & 0x3f) << 2) | | |
641 | ((priv->multi_data[1] & 0x60) >> 5); | |
642 | y_bitmap = ((priv->multi_data[5] & 0x01) << 10) | | |
643 | ((priv->multi_data[3] & 0x1f) << 5) | | |
644 | (priv->multi_data[1] & 0x1f); | |
645 | ||
646 | fingers = alps_process_bitmap(x_bitmap, y_bitmap, | |
647 | &x1, &y1, &x2, &y2); | |
648 | ||
649 | /* Store MT data.*/ | |
650 | priv->fingers = fingers; | |
651 | priv->x1 = x1; | |
652 | priv->x2 = x2; | |
653 | priv->y1 = y1; | |
654 | priv->y2 = y2; | |
655 | } | |
25bded7c SF |
656 | |
657 | left = packet[4] & 0x01; | |
658 | right = packet[4] & 0x02; | |
659 | ||
660 | x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | | |
661 | ((packet[0] & 0x30) >> 4); | |
662 | y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); | |
663 | z = packet[5] & 0x7f; | |
664 | ||
3b7e09fa GP |
665 | /* |
666 | * If there were no contacts in the bitmap, use ST | |
667 | * points in MT reports. | |
668 | * If there were two contacts or more, report MT data. | |
669 | */ | |
670 | if (priv->fingers < 2) { | |
671 | x1 = x; | |
672 | y1 = y; | |
673 | fingers = z > 0 ? 1 : 0; | |
674 | } else { | |
675 | fingers = priv->fingers; | |
676 | x1 = priv->x1; | |
677 | x2 = priv->x2; | |
678 | y1 = priv->y1; | |
679 | y2 = priv->y2; | |
680 | } | |
681 | ||
25bded7c SF |
682 | if (z >= 64) |
683 | input_report_key(dev, BTN_TOUCH, 1); | |
684 | else | |
685 | input_report_key(dev, BTN_TOUCH, 0); | |
686 | ||
3b7e09fa GP |
687 | alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); |
688 | ||
616575c2 | 689 | input_mt_report_finger_count(dev, fingers); |
3b7e09fa GP |
690 | |
691 | input_report_key(dev, BTN_LEFT, left); | |
692 | input_report_key(dev, BTN_RIGHT, right); | |
693 | ||
25bded7c SF |
694 | if (z > 0) { |
695 | input_report_abs(dev, ABS_X, x); | |
696 | input_report_abs(dev, ABS_Y, y); | |
697 | } | |
698 | input_report_abs(dev, ABS_PRESSURE, z); | |
699 | ||
25bded7c SF |
700 | input_sync(dev); |
701 | } | |
702 | ||
1d9f2626 SK |
703 | static void alps_report_bare_ps2_packet(struct psmouse *psmouse, |
704 | unsigned char packet[], | |
705 | bool report_buttons) | |
706 | { | |
707 | struct alps_data *priv = psmouse->private; | |
708 | struct input_dev *dev2 = priv->dev2; | |
709 | ||
710 | if (report_buttons) | |
711 | alps_report_buttons(psmouse, dev2, psmouse->dev, | |
712 | packet[0] & 1, packet[0] & 2, packet[0] & 4); | |
713 | ||
714 | input_report_rel(dev2, REL_X, | |
715 | packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); | |
716 | input_report_rel(dev2, REL_Y, | |
717 | packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); | |
718 | ||
719 | input_sync(dev2); | |
720 | } | |
721 | ||
722 | static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) | |
723 | { | |
724 | struct alps_data *priv = psmouse->private; | |
725 | ||
726 | if (psmouse->pktcnt < 6) | |
727 | return PSMOUSE_GOOD_DATA; | |
728 | ||
729 | if (psmouse->pktcnt == 6) { | |
730 | /* | |
731 | * Start a timer to flush the packet if it ends up last | |
732 | * 6-byte packet in the stream. Timer needs to fire | |
733 | * psmouse core times out itself. 20 ms should be enough | |
734 | * to decide if we are getting more data or not. | |
735 | */ | |
736 | mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); | |
737 | return PSMOUSE_GOOD_DATA; | |
738 | } | |
739 | ||
740 | del_timer(&priv->timer); | |
741 | ||
742 | if (psmouse->packet[6] & 0x80) { | |
743 | ||
744 | /* | |
745 | * Highest bit is set - that means we either had | |
746 | * complete ALPS packet and this is start of the | |
747 | * next packet or we got garbage. | |
748 | */ | |
749 | ||
750 | if (((psmouse->packet[3] | | |
751 | psmouse->packet[4] | | |
752 | psmouse->packet[5]) & 0x80) || | |
99df65e7 | 753 | (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { |
b5d21704 | 754 | psmouse_dbg(psmouse, |
3b112923 AS |
755 | "refusing packet %4ph (suspected interleaved ps/2)\n", |
756 | psmouse->packet + 3); | |
1d9f2626 SK |
757 | return PSMOUSE_BAD_DATA; |
758 | } | |
759 | ||
24af5cb9 | 760 | priv->process_packet(psmouse); |
1d9f2626 SK |
761 | |
762 | /* Continue with the next packet */ | |
763 | psmouse->packet[0] = psmouse->packet[6]; | |
764 | psmouse->pktcnt = 1; | |
765 | ||
766 | } else { | |
767 | ||
768 | /* | |
769 | * High bit is 0 - that means that we indeed got a PS/2 | |
770 | * packet in the middle of ALPS packet. | |
771 | * | |
772 | * There is also possibility that we got 6-byte ALPS | |
773 | * packet followed by 3-byte packet from trackpoint. We | |
774 | * can not distinguish between these 2 scenarios but | |
b5d21704 | 775 | * because the latter is unlikely to happen in course of |
1d9f2626 SK |
776 | * normal operation (user would need to press all |
777 | * buttons on the pad and start moving trackpoint | |
778 | * without touching the pad surface) we assume former. | |
779 | * Even if we are wrong the wost thing that would happen | |
780 | * the cursor would jump but we should not get protocol | |
b5d21704 | 781 | * de-synchronization. |
1d9f2626 SK |
782 | */ |
783 | ||
784 | alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], | |
785 | false); | |
786 | ||
787 | /* | |
788 | * Continue with the standard ALPS protocol handling, | |
789 | * but make sure we won't process it as an interleaved | |
790 | * packet again, which may happen if all buttons are | |
791 | * pressed. To avoid this let's reset the 4th bit which | |
792 | * is normally 1. | |
793 | */ | |
794 | psmouse->packet[3] = psmouse->packet[6] & 0xf7; | |
795 | psmouse->pktcnt = 4; | |
796 | } | |
797 | ||
798 | return PSMOUSE_GOOD_DATA; | |
799 | } | |
800 | ||
801 | static void alps_flush_packet(unsigned long data) | |
802 | { | |
803 | struct psmouse *psmouse = (struct psmouse *)data; | |
24af5cb9 | 804 | struct alps_data *priv = psmouse->private; |
1d9f2626 SK |
805 | |
806 | serio_pause_rx(psmouse->ps2dev.serio); | |
807 | ||
b46615fe | 808 | if (psmouse->pktcnt == psmouse->pktsize) { |
1d9f2626 SK |
809 | |
810 | /* | |
811 | * We did not any more data in reasonable amount of time. | |
812 | * Validate the last 3 bytes and process as a standard | |
813 | * ALPS packet. | |
814 | */ | |
815 | if ((psmouse->packet[3] | | |
816 | psmouse->packet[4] | | |
817 | psmouse->packet[5]) & 0x80) { | |
b5d21704 | 818 | psmouse_dbg(psmouse, |
3b112923 AS |
819 | "refusing packet %3ph (suspected interleaved ps/2)\n", |
820 | psmouse->packet + 3); | |
1d9f2626 | 821 | } else { |
24af5cb9 | 822 | priv->process_packet(psmouse); |
1d9f2626 SK |
823 | } |
824 | psmouse->pktcnt = 0; | |
825 | } | |
826 | ||
827 | serio_continue_rx(psmouse->ps2dev.serio); | |
828 | } | |
829 | ||
7d12e780 | 830 | static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) |
1da177e4 LT |
831 | { |
832 | struct alps_data *priv = psmouse->private; | |
833 | ||
834 | if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ | |
835 | if (psmouse->pktcnt == 3) { | |
1d9f2626 SK |
836 | alps_report_bare_ps2_packet(psmouse, psmouse->packet, |
837 | true); | |
1da177e4 LT |
838 | return PSMOUSE_FULL_PACKET; |
839 | } | |
840 | return PSMOUSE_GOOD_DATA; | |
841 | } | |
842 | ||
1d9f2626 SK |
843 | /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ |
844 | ||
99df65e7 | 845 | if ((priv->flags & ALPS_PS2_INTERLEAVED) && |
1d9f2626 SK |
846 | psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { |
847 | return alps_handle_interleaved_ps2(psmouse); | |
848 | } | |
849 | ||
99df65e7 | 850 | if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { |
b5d21704 DT |
851 | psmouse_dbg(psmouse, |
852 | "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", | |
99df65e7 | 853 | psmouse->packet[0], priv->mask0, priv->byte0); |
1da177e4 | 854 | return PSMOUSE_BAD_DATA; |
1d9f2626 | 855 | } |
1da177e4 | 856 | |
b46615fe SF |
857 | /* Bytes 2 - pktsize should have 0 in the highest bit */ |
858 | if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && | |
1d9f2626 | 859 | (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { |
b5d21704 DT |
860 | psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", |
861 | psmouse->pktcnt - 1, | |
862 | psmouse->packet[psmouse->pktcnt - 1]); | |
1da177e4 | 863 | return PSMOUSE_BAD_DATA; |
1d9f2626 | 864 | } |
1da177e4 | 865 | |
b46615fe | 866 | if (psmouse->pktcnt == psmouse->pktsize) { |
24af5cb9 | 867 | priv->process_packet(psmouse); |
1da177e4 LT |
868 | return PSMOUSE_FULL_PACKET; |
869 | } | |
870 | ||
871 | return PSMOUSE_GOOD_DATA; | |
872 | } | |
873 | ||
25bded7c SF |
874 | static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) |
875 | { | |
876 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
877 | struct alps_data *priv = psmouse->private; | |
878 | int command; | |
879 | unsigned char *param; | |
880 | unsigned char dummy[4]; | |
881 | ||
882 | BUG_ON(nibble > 0xf); | |
883 | ||
884 | command = priv->nibble_commands[nibble].command; | |
885 | param = (command & 0x0f00) ? | |
886 | dummy : (unsigned char *)&priv->nibble_commands[nibble].data; | |
887 | ||
888 | if (ps2_command(ps2dev, param, command)) | |
889 | return -1; | |
890 | ||
891 | return 0; | |
892 | } | |
893 | ||
894 | static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) | |
895 | { | |
896 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
897 | struct alps_data *priv = psmouse->private; | |
898 | int i, nibble; | |
899 | ||
900 | if (ps2_command(ps2dev, NULL, priv->addr_command)) | |
901 | return -1; | |
902 | ||
903 | for (i = 12; i >= 0; i -= 4) { | |
904 | nibble = (addr >> i) & 0xf; | |
905 | if (alps_command_mode_send_nibble(psmouse, nibble)) | |
906 | return -1; | |
907 | } | |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
912 | static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) | |
913 | { | |
914 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
915 | unsigned char param[4]; | |
916 | ||
917 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
918 | return -1; | |
919 | ||
920 | /* | |
921 | * The address being read is returned in the first two bytes | |
922 | * of the result. Check that this address matches the expected | |
923 | * address. | |
924 | */ | |
925 | if (addr != ((param[0] << 8) | param[1])) | |
926 | return -1; | |
927 | ||
928 | return param[2]; | |
929 | } | |
930 | ||
931 | static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) | |
932 | { | |
933 | if (alps_command_mode_set_addr(psmouse, addr)) | |
934 | return -1; | |
935 | return __alps_command_mode_read_reg(psmouse, addr); | |
936 | } | |
937 | ||
938 | static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) | |
939 | { | |
940 | if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) | |
941 | return -1; | |
942 | if (alps_command_mode_send_nibble(psmouse, value & 0xf)) | |
943 | return -1; | |
944 | return 0; | |
945 | } | |
946 | ||
947 | static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, | |
948 | u8 value) | |
949 | { | |
950 | if (alps_command_mode_set_addr(psmouse, addr)) | |
951 | return -1; | |
952 | return __alps_command_mode_write_reg(psmouse, value); | |
953 | } | |
954 | ||
24ba9707 KC |
955 | static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, |
956 | int repeated_command, unsigned char *param) | |
957 | { | |
958 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
959 | ||
960 | param[0] = 0; | |
961 | if (init_command && ps2_command(ps2dev, param, init_command)) | |
962 | return -EIO; | |
963 | ||
964 | if (ps2_command(ps2dev, NULL, repeated_command) || | |
965 | ps2_command(ps2dev, NULL, repeated_command) || | |
966 | ps2_command(ps2dev, NULL, repeated_command)) | |
967 | return -EIO; | |
968 | ||
969 | param[0] = param[1] = param[2] = 0xff; | |
970 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
971 | return -EIO; | |
972 | ||
973 | psmouse_dbg(psmouse, "%2.2X report: %2.2x %2.2x %2.2x\n", | |
974 | repeated_command, param[0], param[1], param[2]); | |
975 | return 0; | |
976 | } | |
977 | ||
25bded7c SF |
978 | static int alps_enter_command_mode(struct psmouse *psmouse, |
979 | unsigned char *resp) | |
980 | { | |
981 | unsigned char param[4]; | |
25bded7c | 982 | |
24ba9707 | 983 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { |
25bded7c SF |
984 | psmouse_err(psmouse, "failed to enter command mode\n"); |
985 | return -1; | |
986 | } | |
987 | ||
988 | if (param[0] != 0x88 && param[1] != 0x07) { | |
989 | psmouse_dbg(psmouse, | |
24ba9707 | 990 | "unknown response while entering command mode\n"); |
25bded7c SF |
991 | return -1; |
992 | } | |
993 | ||
994 | if (resp) | |
995 | *resp = param[2]; | |
996 | return 0; | |
997 | } | |
998 | ||
999 | static inline int alps_exit_command_mode(struct psmouse *psmouse) | |
1000 | { | |
1001 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1002 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) | |
1003 | return -1; | |
1004 | return 0; | |
1005 | } | |
1006 | ||
1da177e4 LT |
1007 | /* |
1008 | * For DualPoint devices select the device that should respond to | |
1009 | * subsequent commands. It looks like glidepad is behind stickpointer, | |
1010 | * I'd thought it would be other way around... | |
1011 | */ | |
25bded7c | 1012 | static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) |
1da177e4 LT |
1013 | { |
1014 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1da177e4 LT |
1015 | int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; |
1016 | ||
1017 | if (ps2_command(ps2dev, NULL, cmd) || | |
1018 | ps2_command(ps2dev, NULL, cmd) || | |
1019 | ps2_command(ps2dev, NULL, cmd) || | |
1020 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) | |
1021 | return -1; | |
1022 | ||
1023 | /* we may get 3 more bytes, just ignore them */ | |
c611763d | 1024 | ps2_drain(ps2dev, 3, 100); |
1da177e4 LT |
1025 | |
1026 | return 0; | |
1027 | } | |
1028 | ||
25bded7c | 1029 | static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
1030 | { |
1031 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1032 | ||
1033 | /* Try ALPS magic knock - 4 disable before enable */ | |
1034 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1035 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1036 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1037 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1038 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) | |
1039 | return -1; | |
1040 | ||
1041 | /* | |
1042 | * Switch mouse to poll (remote) mode so motion data will not | |
1043 | * get in our way | |
1044 | */ | |
1045 | return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); | |
1046 | } | |
1047 | ||
1048 | static int alps_get_status(struct psmouse *psmouse, char *param) | |
1049 | { | |
1da177e4 | 1050 | /* Get status: 0xF5 0xF5 0xF5 0xE9 */ |
24ba9707 | 1051 | if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) |
1da177e4 LT |
1052 | return -1; |
1053 | ||
1da177e4 LT |
1054 | return 0; |
1055 | } | |
1056 | ||
1057 | /* | |
1058 | * Turn touchpad tapping on or off. The sequences are: | |
1059 | * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, | |
1060 | * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. | |
1061 | * My guess that 0xE9 (GetInfo) is here as a sync point. | |
1062 | * For models that also have stickpointer (DualPoints) its tapping | |
1063 | * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but | |
1064 | * we don't fiddle with it. | |
1065 | */ | |
1066 | static int alps_tap_mode(struct psmouse *psmouse, int enable) | |
1067 | { | |
1068 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
1069 | int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; | |
1070 | unsigned char tap_arg = enable ? 0x0A : 0x00; | |
1071 | unsigned char param[4]; | |
1072 | ||
1073 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || | |
1074 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1075 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
1076 | ps2_command(ps2dev, &tap_arg, cmd)) | |
1077 | return -1; | |
1078 | ||
1079 | if (alps_get_status(psmouse, param)) | |
1080 | return -1; | |
1081 | ||
1082 | return 0; | |
1083 | } | |
1084 | ||
f0d5c6f4 DT |
1085 | /* |
1086 | * alps_poll() - poll the touchpad for current motion packet. | |
1087 | * Used in resync. | |
1088 | */ | |
1089 | static int alps_poll(struct psmouse *psmouse) | |
1090 | { | |
1091 | struct alps_data *priv = psmouse->private; | |
b46615fe | 1092 | unsigned char buf[sizeof(psmouse->packet)]; |
b7802c5c | 1093 | bool poll_failed; |
f0d5c6f4 | 1094 | |
99df65e7 | 1095 | if (priv->flags & ALPS_PASS) |
25bded7c | 1096 | alps_passthrough_mode_v2(psmouse, true); |
f0d5c6f4 DT |
1097 | |
1098 | poll_failed = ps2_command(&psmouse->ps2dev, buf, | |
1099 | PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; | |
1100 | ||
99df65e7 | 1101 | if (priv->flags & ALPS_PASS) |
25bded7c | 1102 | alps_passthrough_mode_v2(psmouse, false); |
f0d5c6f4 | 1103 | |
99df65e7 | 1104 | if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) |
f0d5c6f4 DT |
1105 | return -1; |
1106 | ||
1107 | if ((psmouse->badbyte & 0xc8) == 0x08) { | |
1108 | /* | |
1109 | * Poll the track stick ... | |
1110 | */ | |
1111 | if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) | |
1112 | return -1; | |
1113 | } | |
1114 | ||
1115 | memcpy(psmouse->packet, buf, sizeof(buf)); | |
1116 | return 0; | |
1117 | } | |
1118 | ||
25bded7c | 1119 | static int alps_hw_init_v1_v2(struct psmouse *psmouse) |
1da177e4 LT |
1120 | { |
1121 | struct alps_data *priv = psmouse->private; | |
f3a5c73d | 1122 | |
99df65e7 | 1123 | if ((priv->flags & ALPS_PASS) && |
25bded7c | 1124 | alps_passthrough_mode_v2(psmouse, true)) { |
1da177e4 | 1125 | return -1; |
b7802c5c | 1126 | } |
1da177e4 | 1127 | |
b7802c5c | 1128 | if (alps_tap_mode(psmouse, true)) { |
b5d21704 | 1129 | psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); |
1da177e4 | 1130 | return -1; |
963f626d | 1131 | } |
1da177e4 | 1132 | |
25bded7c | 1133 | if (alps_absolute_mode_v1_v2(psmouse)) { |
b5d21704 | 1134 | psmouse_err(psmouse, "Failed to enable absolute mode\n"); |
1da177e4 LT |
1135 | return -1; |
1136 | } | |
1137 | ||
99df65e7 | 1138 | if ((priv->flags & ALPS_PASS) && |
25bded7c | 1139 | alps_passthrough_mode_v2(psmouse, false)) { |
1da177e4 | 1140 | return -1; |
b7802c5c | 1141 | } |
1da177e4 | 1142 | |
1e0c5b12 DT |
1143 | /* ALPS needs stream mode, otherwise it won't report any data */ |
1144 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { | |
b5d21704 | 1145 | psmouse_err(psmouse, "Failed to enable stream mode\n"); |
1e0c5b12 DT |
1146 | return -1; |
1147 | } | |
1148 | ||
1149 | return 0; | |
1150 | } | |
1151 | ||
25bded7c SF |
1152 | /* |
1153 | * Enable or disable passthrough mode to the trackstick. Must be in | |
1154 | * command mode when calling this function. | |
1155 | */ | |
1156 | static int alps_passthrough_mode_v3(struct psmouse *psmouse, bool enable) | |
1157 | { | |
1158 | int reg_val; | |
1159 | ||
1160 | reg_val = alps_command_mode_read_reg(psmouse, 0x0008); | |
1161 | if (reg_val == -1) | |
1162 | return -1; | |
1163 | ||
1164 | if (enable) | |
1165 | reg_val |= 0x01; | |
1166 | else | |
1167 | reg_val &= ~0x01; | |
1168 | ||
1169 | if (__alps_command_mode_write_reg(psmouse, reg_val)) | |
1170 | return -1; | |
1171 | ||
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | /* Must be in command mode when calling this function */ | |
1176 | static int alps_absolute_mode_v3(struct psmouse *psmouse) | |
1177 | { | |
1178 | int reg_val; | |
1179 | ||
1180 | reg_val = alps_command_mode_read_reg(psmouse, 0x0004); | |
1181 | if (reg_val == -1) | |
1182 | return -1; | |
1183 | ||
1184 | reg_val |= 0x06; | |
1185 | if (__alps_command_mode_write_reg(psmouse, reg_val)) | |
1186 | return -1; | |
1187 | ||
1188 | return 0; | |
1189 | } | |
1190 | ||
1191 | static int alps_hw_init_v3(struct psmouse *psmouse) | |
1192 | { | |
25bded7c SF |
1193 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
1194 | int reg_val; | |
1195 | unsigned char param[4]; | |
1196 | ||
25bded7c SF |
1197 | if (alps_enter_command_mode(psmouse, NULL)) |
1198 | goto error; | |
1199 | ||
1200 | /* Check for trackstick */ | |
1201 | reg_val = alps_command_mode_read_reg(psmouse, 0x0008); | |
1202 | if (reg_val == -1) | |
1203 | goto error; | |
1204 | if (reg_val & 0x80) { | |
1205 | if (alps_passthrough_mode_v3(psmouse, true)) | |
1206 | goto error; | |
1207 | if (alps_exit_command_mode(psmouse)) | |
1208 | goto error; | |
1209 | ||
1210 | /* | |
1211 | * E7 report for the trackstick | |
1212 | * | |
1213 | * There have been reports of failures to seem to trace back | |
1214 | * to the above trackstick check failing. When these occur | |
1215 | * this E7 report fails, so when that happens we continue | |
1216 | * with the assumption that there isn't a trackstick after | |
1217 | * all. | |
1218 | */ | |
1219 | param[0] = 0x64; | |
1220 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || | |
1221 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || | |
1222 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || | |
1223 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) { | |
1224 | psmouse_warn(psmouse, "trackstick E7 report failed\n"); | |
1225 | } else { | |
1226 | psmouse_dbg(psmouse, | |
1227 | "trackstick E7 report: %2.2x %2.2x %2.2x\n", | |
1228 | param[0], param[1], param[2]); | |
1229 | ||
1230 | /* | |
1231 | * Not sure what this does, but it is absolutely | |
1232 | * essential. Without it, the touchpad does not | |
1233 | * work at all and the trackstick just emits normal | |
1234 | * PS/2 packets. | |
1235 | */ | |
1236 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1237 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1238 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
1239 | alps_command_mode_send_nibble(psmouse, 0x9) || | |
1240 | alps_command_mode_send_nibble(psmouse, 0x4)) { | |
1241 | psmouse_err(psmouse, | |
1242 | "Error sending magic E6 sequence\n"); | |
1243 | goto error_passthrough; | |
1244 | } | |
1245 | } | |
1246 | ||
1247 | if (alps_enter_command_mode(psmouse, NULL)) | |
1248 | goto error_passthrough; | |
1249 | if (alps_passthrough_mode_v3(psmouse, false)) | |
1250 | goto error; | |
1251 | } | |
1252 | ||
1253 | if (alps_absolute_mode_v3(psmouse)) { | |
1254 | psmouse_err(psmouse, "Failed to enter absolute mode\n"); | |
1255 | goto error; | |
1256 | } | |
1257 | ||
1258 | reg_val = alps_command_mode_read_reg(psmouse, 0x0006); | |
1259 | if (reg_val == -1) | |
1260 | goto error; | |
1261 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) | |
1262 | goto error; | |
1263 | ||
1264 | reg_val = alps_command_mode_read_reg(psmouse, 0x0007); | |
1265 | if (reg_val == -1) | |
1266 | goto error; | |
1267 | if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) | |
1268 | goto error; | |
1269 | ||
1270 | if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) | |
1271 | goto error; | |
1272 | if (__alps_command_mode_write_reg(psmouse, 0x04)) | |
1273 | goto error; | |
1274 | ||
1275 | if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) | |
1276 | goto error; | |
1277 | if (__alps_command_mode_write_reg(psmouse, 0x03)) | |
1278 | goto error; | |
1279 | ||
1280 | if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) | |
1281 | goto error; | |
1282 | if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) | |
1283 | goto error; | |
1284 | ||
1285 | if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) | |
1286 | goto error; | |
1287 | if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) | |
1288 | goto error; | |
1289 | ||
1290 | /* | |
1291 | * This ensures the trackstick packets are in the format | |
1292 | * supported by this driver. If bit 1 isn't set the packet | |
1293 | * format is different. | |
1294 | */ | |
1295 | if (alps_command_mode_write_reg(psmouse, 0x0008, 0x82)) | |
1296 | goto error; | |
1297 | ||
1298 | alps_exit_command_mode(psmouse); | |
1299 | ||
1300 | /* Set rate and enable data reporting */ | |
1301 | param[0] = 0x64; | |
1302 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || | |
1303 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1304 | psmouse_err(psmouse, "Failed to enable data reporting\n"); | |
1305 | return -1; | |
1306 | } | |
1307 | ||
1308 | return 0; | |
1309 | ||
1310 | error_passthrough: | |
1311 | /* Something failed while in passthrough mode, so try to get out */ | |
1312 | if (!alps_enter_command_mode(psmouse, NULL)) | |
1313 | alps_passthrough_mode_v3(psmouse, false); | |
1314 | error: | |
1315 | /* | |
1316 | * Leaving the touchpad in command mode will essentially render | |
1317 | * it unusable until the machine reboots, so exit it here just | |
1318 | * to be safe | |
1319 | */ | |
1320 | alps_exit_command_mode(psmouse); | |
1321 | return -1; | |
1322 | } | |
1323 | ||
1324 | /* Must be in command mode when calling this function */ | |
1325 | static int alps_absolute_mode_v4(struct psmouse *psmouse) | |
1326 | { | |
1327 | int reg_val; | |
1328 | ||
1329 | reg_val = alps_command_mode_read_reg(psmouse, 0x0004); | |
1330 | if (reg_val == -1) | |
1331 | return -1; | |
1332 | ||
1333 | reg_val |= 0x02; | |
1334 | if (__alps_command_mode_write_reg(psmouse, reg_val)) | |
1335 | return -1; | |
1336 | ||
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | static int alps_hw_init_v4(struct psmouse *psmouse) | |
1341 | { | |
25bded7c SF |
1342 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
1343 | unsigned char param[4]; | |
1344 | ||
25bded7c SF |
1345 | if (alps_enter_command_mode(psmouse, NULL)) |
1346 | goto error; | |
1347 | ||
1348 | if (alps_absolute_mode_v4(psmouse)) { | |
1349 | psmouse_err(psmouse, "Failed to enter absolute mode\n"); | |
1350 | goto error; | |
1351 | } | |
1352 | ||
1353 | if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) | |
1354 | goto error; | |
1355 | ||
1356 | if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) | |
1357 | goto error; | |
1358 | ||
1359 | if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) | |
1360 | goto error; | |
1361 | ||
1362 | if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) | |
1363 | goto error; | |
1364 | ||
1365 | if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) | |
1366 | goto error; | |
1367 | ||
1368 | if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) | |
1369 | goto error; | |
1370 | ||
1371 | if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) | |
1372 | goto error; | |
1373 | ||
1374 | if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) | |
1375 | goto error; | |
1376 | ||
1377 | alps_exit_command_mode(psmouse); | |
1378 | ||
1379 | /* | |
1380 | * This sequence changes the output from a 9-byte to an | |
1381 | * 8-byte format. All the same data seems to be present, | |
1382 | * just in a more compact format. | |
1383 | */ | |
1384 | param[0] = 0xc8; | |
1385 | param[1] = 0x64; | |
1386 | param[2] = 0x50; | |
1387 | if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || | |
1388 | ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || | |
1389 | ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || | |
1390 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) | |
1391 | return -1; | |
1392 | ||
1393 | /* Set rate and enable data reporting */ | |
1394 | param[0] = 0x64; | |
1395 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || | |
1396 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1397 | psmouse_err(psmouse, "Failed to enable data reporting\n"); | |
1398 | return -1; | |
1399 | } | |
1400 | ||
1401 | return 0; | |
1402 | ||
1403 | error: | |
1404 | /* | |
1405 | * Leaving the touchpad in command mode will essentially render | |
1406 | * it unusable until the machine reboots, so exit it here just | |
1407 | * to be safe | |
1408 | */ | |
1409 | alps_exit_command_mode(psmouse); | |
1410 | return -1; | |
1411 | } | |
1412 | ||
24af5cb9 | 1413 | static void alps_set_defaults(struct alps_data *priv) |
25bded7c | 1414 | { |
99df65e7 | 1415 | switch (priv->proto_version) { |
25bded7c SF |
1416 | case ALPS_PROTO_V1: |
1417 | case ALPS_PROTO_V2: | |
24af5cb9 KC |
1418 | priv->hw_init = alps_hw_init_v1_v2; |
1419 | priv->process_packet = alps_process_packet_v1_v2; | |
1420 | priv->set_abs_params = alps_set_abs_params_st; | |
25bded7c SF |
1421 | break; |
1422 | case ALPS_PROTO_V3: | |
24af5cb9 KC |
1423 | priv->hw_init = alps_hw_init_v3; |
1424 | priv->process_packet = alps_process_packet_v3; | |
1425 | priv->set_abs_params = alps_set_abs_params_mt; | |
50e8b216 KC |
1426 | priv->nibble_commands = alps_v3_nibble_commands; |
1427 | priv->addr_command = PSMOUSE_CMD_RESET_WRAP; | |
25bded7c SF |
1428 | break; |
1429 | case ALPS_PROTO_V4: | |
24af5cb9 KC |
1430 | priv->hw_init = alps_hw_init_v4; |
1431 | priv->process_packet = alps_process_packet_v4; | |
1432 | priv->set_abs_params = alps_set_abs_params_mt; | |
50e8b216 KC |
1433 | priv->nibble_commands = alps_v4_nibble_commands; |
1434 | priv->addr_command = PSMOUSE_CMD_DISABLE; | |
25bded7c SF |
1435 | break; |
1436 | } | |
25bded7c SF |
1437 | } |
1438 | ||
b5d6b851 KC |
1439 | static int alps_match_table(struct psmouse *psmouse, struct alps_data *priv, |
1440 | unsigned char *e7, unsigned char *ec) | |
2e992cc0 | 1441 | { |
b5d6b851 | 1442 | const struct alps_model_info *model; |
2e992cc0 KC |
1443 | int i; |
1444 | ||
b5d6b851 KC |
1445 | for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { |
1446 | model = &alps_model_data[i]; | |
1447 | ||
1448 | if (!memcmp(e7, model->signature, sizeof(model->signature)) && | |
1449 | (!model->command_mode_resp || | |
1450 | model->command_mode_resp == ec[2])) { | |
1451 | ||
1452 | priv->proto_version = model->proto_version; | |
24af5cb9 KC |
1453 | alps_set_defaults(priv); |
1454 | ||
b5d6b851 KC |
1455 | priv->flags = model->flags; |
1456 | priv->byte0 = model->byte0; | |
1457 | priv->mask0 = model->mask0; | |
1458 | ||
1459 | return 0; | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | return -EINVAL; | |
1464 | } | |
1465 | ||
1466 | static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) | |
1467 | { | |
1468 | unsigned char e6[4], e7[4], ec[4]; | |
1469 | ||
2e992cc0 KC |
1470 | /* |
1471 | * First try "E6 report". | |
1472 | * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. | |
1473 | * The bits 0-2 of the first byte will be 1s if some buttons are | |
1474 | * pressed. | |
1475 | */ | |
b5d6b851 KC |
1476 | if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, |
1477 | PSMOUSE_CMD_SETSCALE11, e6)) | |
1478 | return -EIO; | |
2e992cc0 | 1479 | |
b5d6b851 KC |
1480 | if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) |
1481 | return -EINVAL; | |
2e992cc0 KC |
1482 | |
1483 | /* | |
b5d6b851 KC |
1484 | * Now get the "E7" and "EC" reports. These will uniquely identify |
1485 | * most ALPS touchpads. | |
2e992cc0 | 1486 | */ |
b5d6b851 KC |
1487 | if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, |
1488 | PSMOUSE_CMD_SETSCALE21, e7) || | |
1489 | alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, | |
1490 | PSMOUSE_CMD_RESET_WRAP, ec) || | |
1491 | alps_exit_command_mode(psmouse)) | |
1492 | return -EIO; | |
2e992cc0 | 1493 | |
b5d6b851 KC |
1494 | if (alps_match_table(psmouse, priv, e7, ec) == 0) |
1495 | return 0; | |
2e992cc0 | 1496 | |
b5d6b851 KC |
1497 | psmouse_info(psmouse, |
1498 | "Unknown ALPS touchpad: E7=%2.2x %2.2x %2.2x, EC=%2.2x %2.2x %2.2x\n", | |
1499 | e7[0], e7[1], e7[2], ec[0], ec[1], ec[2]); | |
2e992cc0 | 1500 | |
b5d6b851 | 1501 | return -EINVAL; |
2e992cc0 KC |
1502 | } |
1503 | ||
1e0c5b12 DT |
1504 | static int alps_reconnect(struct psmouse *psmouse) |
1505 | { | |
b5d6b851 | 1506 | struct alps_data *priv = psmouse->private; |
71bb21b6 | 1507 | |
1e0c5b12 DT |
1508 | psmouse_reset(psmouse); |
1509 | ||
b5d6b851 | 1510 | if (alps_identify(psmouse, priv) < 0) |
1e0c5b12 DT |
1511 | return -1; |
1512 | ||
24af5cb9 | 1513 | return priv->hw_init(psmouse); |
1da177e4 LT |
1514 | } |
1515 | ||
1516 | static void alps_disconnect(struct psmouse *psmouse) | |
1517 | { | |
1518 | struct alps_data *priv = psmouse->private; | |
2e5b636b | 1519 | |
1da177e4 | 1520 | psmouse_reset(psmouse); |
1d9f2626 | 1521 | del_timer_sync(&priv->timer); |
2e5b636b | 1522 | input_unregister_device(priv->dev2); |
1da177e4 LT |
1523 | kfree(priv); |
1524 | } | |
1525 | ||
24af5cb9 KC |
1526 | static void alps_set_abs_params_st(struct alps_data *priv, |
1527 | struct input_dev *dev1) | |
1528 | { | |
1529 | input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0); | |
1530 | input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0); | |
1531 | } | |
1532 | ||
1533 | static void alps_set_abs_params_mt(struct alps_data *priv, | |
1534 | struct input_dev *dev1) | |
1535 | { | |
1536 | set_bit(INPUT_PROP_SEMI_MT, dev1->propbit); | |
1537 | input_mt_init_slots(dev1, 2, 0); | |
1538 | input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, ALPS_V3_X_MAX, 0, 0); | |
1539 | input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, ALPS_V3_Y_MAX, 0, 0); | |
1540 | ||
1541 | set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit); | |
1542 | set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); | |
1543 | set_bit(BTN_TOOL_QUADTAP, dev1->keybit); | |
1544 | ||
1545 | input_set_abs_params(dev1, ABS_X, 0, ALPS_V3_X_MAX, 0, 0); | |
1546 | input_set_abs_params(dev1, ABS_Y, 0, ALPS_V3_Y_MAX, 0, 0); | |
1547 | } | |
1548 | ||
1da177e4 LT |
1549 | int alps_init(struct psmouse *psmouse) |
1550 | { | |
1551 | struct alps_data *priv; | |
2e5b636b | 1552 | struct input_dev *dev1 = psmouse->dev, *dev2; |
1da177e4 | 1553 | |
f42649e8 | 1554 | priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); |
2e5b636b DT |
1555 | dev2 = input_allocate_device(); |
1556 | if (!priv || !dev2) | |
1da177e4 | 1557 | goto init_fail; |
2e5b636b DT |
1558 | |
1559 | priv->dev2 = dev2; | |
1d9f2626 SK |
1560 | setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); |
1561 | ||
1e0c5b12 | 1562 | psmouse->private = priv; |
1da177e4 | 1563 | |
25bded7c SF |
1564 | psmouse_reset(psmouse); |
1565 | ||
b5d6b851 | 1566 | if (alps_identify(psmouse, priv) < 0) |
71bb21b6 ML |
1567 | goto init_fail; |
1568 | ||
24af5cb9 | 1569 | if (priv->hw_init(psmouse)) |
1da177e4 LT |
1570 | goto init_fail; |
1571 | ||
7105d2ea DT |
1572 | /* |
1573 | * Undo part of setup done for us by psmouse core since touchpad | |
1574 | * is not a relative device. | |
1575 | */ | |
1576 | __clear_bit(EV_REL, dev1->evbit); | |
1577 | __clear_bit(REL_X, dev1->relbit); | |
1578 | __clear_bit(REL_Y, dev1->relbit); | |
1579 | ||
1580 | /* | |
1581 | * Now set up our capabilities. | |
1582 | */ | |
7b19ada2 JS |
1583 | dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); |
1584 | dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); | |
1585 | dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); | |
71bb21b6 ML |
1586 | dev1->keybit[BIT_WORD(BTN_LEFT)] |= |
1587 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); | |
1da177e4 | 1588 | |
7b19ada2 | 1589 | dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); |
25bded7c | 1590 | |
24af5cb9 | 1591 | priv->set_abs_params(priv, dev1); |
2e5b636b | 1592 | input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); |
1da177e4 | 1593 | |
99df65e7 | 1594 | if (priv->flags & ALPS_WHEEL) { |
7b19ada2 JS |
1595 | dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); |
1596 | dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); | |
1da177e4 LT |
1597 | } |
1598 | ||
99df65e7 | 1599 | if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { |
7b19ada2 JS |
1600 | dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); |
1601 | dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); | |
1da177e4 LT |
1602 | } |
1603 | ||
99df65e7 | 1604 | if (priv->flags & ALPS_FOUR_BUTTONS) { |
71bb21b6 ML |
1605 | dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); |
1606 | dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); | |
1607 | dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); | |
1608 | dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); | |
1609 | } else { | |
1610 | dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); | |
1611 | } | |
1612 | ||
08ffce45 | 1613 | snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); |
2e5b636b | 1614 | dev2->phys = priv->phys; |
99df65e7 KC |
1615 | dev2->name = (priv->flags & ALPS_DUALPOINT) ? |
1616 | "DualPoint Stick" : "PS/2 Mouse"; | |
2e5b636b DT |
1617 | dev2->id.bustype = BUS_I8042; |
1618 | dev2->id.vendor = 0x0002; | |
1619 | dev2->id.product = PSMOUSE_ALPS; | |
1620 | dev2->id.version = 0x0000; | |
1db3a345 | 1621 | dev2->dev.parent = &psmouse->ps2dev.serio->dev; |
1da177e4 | 1622 | |
7b19ada2 | 1623 | dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
71bb21b6 ML |
1624 | dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
1625 | dev2->keybit[BIT_WORD(BTN_LEFT)] = | |
1626 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); | |
1da177e4 | 1627 | |
f42649e8 DT |
1628 | if (input_register_device(priv->dev2)) |
1629 | goto init_fail; | |
1da177e4 LT |
1630 | |
1631 | psmouse->protocol_handler = alps_process_byte; | |
f0d5c6f4 | 1632 | psmouse->poll = alps_poll; |
1da177e4 LT |
1633 | psmouse->disconnect = alps_disconnect; |
1634 | psmouse->reconnect = alps_reconnect; | |
99df65e7 | 1635 | psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; |
1da177e4 | 1636 | |
f0d5c6f4 DT |
1637 | /* We are having trouble resyncing ALPS touchpads so disable it for now */ |
1638 | psmouse->resync_time = 0; | |
1639 | ||
1da177e4 LT |
1640 | return 0; |
1641 | ||
1642 | init_fail: | |
f42649e8 | 1643 | psmouse_reset(psmouse); |
2e5b636b | 1644 | input_free_device(dev2); |
1da177e4 | 1645 | kfree(priv); |
1e0c5b12 | 1646 | psmouse->private = NULL; |
1da177e4 LT |
1647 | return -1; |
1648 | } | |
1649 | ||
b7802c5c | 1650 | int alps_detect(struct psmouse *psmouse, bool set_properties) |
1da177e4 | 1651 | { |
b5d6b851 | 1652 | struct alps_data dummy; |
1da177e4 | 1653 | |
b5d6b851 | 1654 | if (alps_identify(psmouse, &dummy) < 0) |
1da177e4 LT |
1655 | return -1; |
1656 | ||
1657 | if (set_properties) { | |
1658 | psmouse->vendor = "ALPS"; | |
b5d6b851 | 1659 | psmouse->name = dummy.flags & ALPS_DUALPOINT ? |
968ac842 | 1660 | "DualPoint TouchPad" : "GlidePoint"; |
b5d6b851 | 1661 | psmouse->model = dummy.proto_version << 8; |
1da177e4 LT |
1662 | } |
1663 | return 0; | |
1664 | } | |
1665 |