1 /* 2 * ALPS touchpad PS/2 mouse driver 3 * 4 * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> 5 * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> 6 * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> 7 * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> 8 * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> 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 18 #include <linux/slab.h> 19 #include <linux/input.h> 20 #include <linux/input/mt.h> 21 #include <linux/serio.h> 22 #include <linux/libps2.h> 23 24 #include "psmouse.h" 25 #include "alps.h" 26 27 /* 28 * Definitions for ALPS version 3 and 4 command mode protocol 29 */ 30 #define ALPS_CMD_NIBBLE_10 0x01f2 31 32 #define ALPS_REG_BASE_RUSHMORE 0xc2c0 33 #define ALPS_REG_BASE_PINNACLE 0x0000 34 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 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 */ 81 #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with 82 6-byte ALPS packet */ 83 84 static const struct alps_model_info alps_model_data[] = { 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 */ 103 /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ 104 { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, 105 ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, 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 */ 109 { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 }, 110 }; 111 112 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); 116 117 /* 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 */ 122 123 /* Packet formats are described in Documentation/input/alps.txt */ 124 125 static bool alps_is_valid_first_byte(struct alps_data *priv, 126 unsigned char data) 127 { 128 return (data & priv->mask0) == priv->byte0; 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 { 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); 156 } 157 158 static void alps_process_packet_v1_v2(struct psmouse *psmouse) 159 { 160 struct alps_data *priv = psmouse->private; 161 unsigned char *packet = psmouse->packet; 162 struct input_dev *dev = psmouse->dev; 163 struct input_dev *dev2 = priv->dev2; 164 int x, y, z, ges, fin, left, right, middle; 165 int back = 0, forward = 0; 166 167 if (priv->proto_version == ALPS_PROTO_V1) { 168 left = packet[2] & 0x10; 169 right = packet[2] & 0x08; 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 } 182 183 if (priv->flags & ALPS_FW_BK_1) { 184 back = packet[0] & 0x10; 185 forward = packet[2] & 4; 186 } 187 188 if (priv->flags & ALPS_FW_BK_2) { 189 back = packet[3] & 4; 190 forward = packet[2] & 4; 191 if ((middle = forward && back)) 192 forward = back = 0; 193 } 194 195 ges = packet[2] & 1; 196 fin = packet[2] & 2; 197 198 if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 199 input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 200 input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 201 202 alps_report_buttons(psmouse, dev2, dev, left, right, middle); 203 204 input_sync(dev2); 205 return; 206 } 207 208 alps_report_buttons(psmouse, dev, dev2, left, right, middle); 209 210 /* Convert hardware tap to a reasonable Z value */ 211 if (ges && !fin) 212 z = 40; 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; 227 228 if (z > 30) 229 input_report_key(dev, BTN_TOUCH, 1); 230 if (z < 25) 231 input_report_key(dev, BTN_TOUCH, 0); 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); 240 241 if (priv->flags & ALPS_WHEEL) 242 input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 243 244 if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 245 input_report_key(dev, BTN_FORWARD, forward); 246 input_report_key(dev, BTN_BACK, back); 247 } 248 249 if (priv->flags & ALPS_FOUR_BUTTONS) { 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 } 255 256 input_sync(dev); 257 } 258 259 /* 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 */ 269 static int alps_process_bitmap(struct alps_data *priv, 270 unsigned int x_map, unsigned int y_map, 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 */ 312 y_map = y_map << (sizeof(y_map) * BITS_PER_BYTE - priv->y_bits); 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 } 357 358 *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)); 362 363 if (fingers > 1) { 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)); 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 } 392 393 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 } 452 453 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 } 484 485 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 } 492 493 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 } 515 516 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; 522 int x1 = 0, y1 = 0, x2 = 0, y2 = 0; 523 int fingers = 0, bmap_fingers; 524 struct alps_fields f; 525 526 priv->decode_fields(&f, packet); 527 528 /* 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. 533 */ 534 if (priv->multi_packet) { 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 */ 541 if (f.is_mp) { 542 fingers = f.fingers; 543 bmap_fingers = alps_process_bitmap(priv, 544 f.x_map, f.y_map, 545 &x1, &y1, &x2, &y2); 546 547 /* 548 * We shouldn't report more than one finger if 549 * we don't have two coordinates. 550 */ 551 if (fingers > 1 && bmap_fingers < 2) 552 fingers = bmap_fingers; 553 554 /* Now process position packet */ 555 priv->decode_fields(&f, priv->multi_data); 556 } else { 557 priv->multi_packet = 0; 558 } 559 } 560 561 /* 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 */ 569 if (f.is_mp) 570 return; 571 572 if (!priv->multi_packet && f.first_mp) { 573 priv->multi_packet = 1; 574 memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 575 return; 576 } 577 578 priv->multi_packet = 0; 579 580 /* 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 */ 586 if (f.x && f.y && !f.z) 587 return; 588 589 /* 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) { 594 x1 = f.x; 595 y1 = f.y; 596 fingers = f.z > 0 ? 1 : 0; 597 } 598 599 if (f.z >= 64) 600 input_report_key(dev, BTN_TOUCH, 1); 601 else 602 input_report_key(dev, BTN_TOUCH, 0); 603 604 alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); 605 606 input_mt_report_finger_count(dev, fingers); 607 608 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); 611 612 if (f.z > 0) { 613 input_report_abs(dev, ABS_X, f.x); 614 input_report_abs(dev, ABS_Y, f.y); 615 } 616 input_report_abs(dev, ABS_PRESSURE, f.z); 617 618 input_sync(dev); 619 620 if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 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); 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 { 650 struct alps_data *priv = psmouse->private; 651 unsigned char *packet = psmouse->packet; 652 struct input_dev *dev = psmouse->dev; 653 int offset; 654 int x, y, z; 655 int left, right; 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); 687 688 fingers = alps_process_bitmap(priv, x_bitmap, y_bitmap, 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 } 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; 706 707 /* 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 } 723 724 if (z >= 64) 725 input_report_key(dev, BTN_TOUCH, 1); 726 else 727 input_report_key(dev, BTN_TOUCH, 0); 728 729 alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); 730 731 input_mt_report_finger_count(dev, fingers); 732 733 input_report_key(dev, BTN_LEFT, left); 734 input_report_key(dev, BTN_RIGHT, right); 735 736 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); 741 742 input_sync(dev); 743 } 744 745 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) || 795 (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 796 psmouse_dbg(psmouse, 797 "refusing packet %4ph (suspected interleaved ps/2)\n", 798 psmouse->packet + 3); 799 return PSMOUSE_BAD_DATA; 800 } 801 802 priv->process_packet(psmouse); 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 817 * because the latter is unlikely to happen in course of 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 823 * de-synchronization. 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; 846 struct alps_data *priv = psmouse->private; 847 848 serio_pause_rx(psmouse->ps2dev.serio); 849 850 if (psmouse->pktcnt == psmouse->pktsize) { 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) { 860 psmouse_dbg(psmouse, 861 "refusing packet %3ph (suspected interleaved ps/2)\n", 862 psmouse->packet + 3); 863 } else { 864 priv->process_packet(psmouse); 865 } 866 psmouse->pktcnt = 0; 867 } 868 869 serio_continue_rx(psmouse->ps2dev.serio); 870 } 871 872 static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 873 { 874 struct alps_data *priv = psmouse->private; 875 876 if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ 877 if (psmouse->pktcnt == 3) { 878 alps_report_bare_ps2_packet(psmouse, psmouse->packet, 879 true); 880 return PSMOUSE_FULL_PACKET; 881 } 882 return PSMOUSE_GOOD_DATA; 883 } 884 885 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 886 887 if ((priv->flags & ALPS_PS2_INTERLEAVED) && 888 psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 889 return alps_handle_interleaved_ps2(psmouse); 890 } 891 892 if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 893 psmouse_dbg(psmouse, 894 "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 895 psmouse->packet[0], priv->mask0, priv->byte0); 896 return PSMOUSE_BAD_DATA; 897 } 898 899 /* Bytes 2 - pktsize should have 0 in the highest bit */ 900 if (priv->proto_version != ALPS_PROTO_V5 && 901 psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 902 (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 903 psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 904 psmouse->pktcnt - 1, 905 psmouse->packet[psmouse->pktcnt - 1]); 906 return PSMOUSE_BAD_DATA; 907 } 908 909 if (psmouse->pktcnt == psmouse->pktsize) { 910 priv->process_packet(psmouse); 911 return PSMOUSE_FULL_PACKET; 912 } 913 914 return PSMOUSE_GOOD_DATA; 915 } 916 917 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 } 997 998 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 1021 static int alps_enter_command_mode(struct psmouse *psmouse) 1022 { 1023 unsigned char param[4]; 1024 1025 if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 1026 psmouse_err(psmouse, "failed to enter command mode\n"); 1027 return -1; 1028 } 1029 1030 if ((param[0] != 0x88 || (param[1] != 0x07 && param[1] != 0x08)) && 1031 param[0] != 0x73) { 1032 psmouse_dbg(psmouse, 1033 "unknown response while entering command mode\n"); 1034 return -1; 1035 } 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 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 */ 1052 static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 1053 { 1054 struct ps2dev *ps2dev = &psmouse->ps2dev; 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 */ 1064 ps2_drain(ps2dev, 3, 100); 1065 1066 return 0; 1067 } 1068 1069 static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 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 { 1090 /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 1091 if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 1092 return -1; 1093 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 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; 1132 unsigned char buf[sizeof(psmouse->packet)]; 1133 bool poll_failed; 1134 1135 if (priv->flags & ALPS_PASS) 1136 alps_passthrough_mode_v2(psmouse, true); 1137 1138 poll_failed = ps2_command(&psmouse->ps2dev, buf, 1139 PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1140 1141 if (priv->flags & ALPS_PASS) 1142 alps_passthrough_mode_v2(psmouse, false); 1143 1144 if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 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 1159 static int alps_hw_init_v1_v2(struct psmouse *psmouse) 1160 { 1161 struct alps_data *priv = psmouse->private; 1162 1163 if ((priv->flags & ALPS_PASS) && 1164 alps_passthrough_mode_v2(psmouse, true)) { 1165 return -1; 1166 } 1167 1168 if (alps_tap_mode(psmouse, true)) { 1169 psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 1170 return -1; 1171 } 1172 1173 if (alps_absolute_mode_v1_v2(psmouse)) { 1174 psmouse_err(psmouse, "Failed to enable absolute mode\n"); 1175 return -1; 1176 } 1177 1178 if ((priv->flags & ALPS_PASS) && 1179 alps_passthrough_mode_v2(psmouse, false)) { 1180 return -1; 1181 } 1182 1183 /* ALPS needs stream mode, otherwise it won't report any data */ 1184 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 1185 psmouse_err(psmouse, "Failed to enable stream mode\n"); 1186 return -1; 1187 } 1188 1189 return 0; 1190 } 1191 1192 /* 1193 * Enable or disable passthrough mode to the trackstick. 1194 */ 1195 static int alps_passthrough_mode_v3(struct psmouse *psmouse, 1196 int reg_base, bool enable) 1197 { 1198 int reg_val, ret = -1; 1199 1200 if (alps_enter_command_mode(psmouse)) 1201 return -1; 1202 1203 reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 1204 if (reg_val == -1) 1205 goto error; 1206 1207 if (enable) 1208 reg_val |= 0x01; 1209 else 1210 reg_val &= ~0x01; 1211 1212 ret = __alps_command_mode_write_reg(psmouse, reg_val); 1213 1214 error: 1215 if (alps_exit_command_mode(psmouse)) 1216 ret = -1; 1217 return ret; 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 1236 static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) 1237 { 1238 int ret = -EIO, reg_val; 1239 1240 if (alps_enter_command_mode(psmouse)) 1241 goto error; 1242 1243 reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 1244 if (reg_val == -1) 1245 goto error; 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]); 1280 1281 /* 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. 1286 */ 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; 1296 } 1297 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 */ 1303 if (alps_enter_command_mode(psmouse) || 1304 alps_command_mode_write_reg(psmouse, 1305 reg_base + 0x08, 0x82) || 1306 alps_exit_command_mode(psmouse)) 1307 ret = -EIO; 1308 } 1309 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 1330 if (alps_enter_command_mode(psmouse) || 1331 alps_absolute_mode_v3(psmouse)) { 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 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 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 1390 static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 1391 { 1392 struct alps_data *priv = psmouse->private; 1393 struct ps2dev *ps2dev = &psmouse->ps2dev; 1394 int reg_val, ret = -1; 1395 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 1405 if (alps_enter_command_mode(psmouse) || 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 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 { 1452 struct ps2dev *ps2dev = &psmouse->ps2dev; 1453 unsigned char param[4]; 1454 1455 if (alps_enter_command_mode(psmouse)) 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 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 1540 static void alps_set_defaults(struct alps_data *priv) 1541 { 1542 priv->byte0 = 0x8f; 1543 priv->mask0 = 0x8f; 1544 priv->flags = ALPS_DUALPOINT; 1545 1546 priv->x_max = 2000; 1547 priv->y_max = 1400; 1548 priv->x_bits = 15; 1549 priv->y_bits = 11; 1550 1551 switch (priv->proto_version) { 1552 case ALPS_PROTO_V1: 1553 case ALPS_PROTO_V2: 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; 1557 break; 1558 case ALPS_PROTO_V3: 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; 1562 priv->decode_fields = alps_decode_pinnacle; 1563 priv->nibble_commands = alps_v3_nibble_commands; 1564 priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 1565 break; 1566 case ALPS_PROTO_V4: 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; 1570 priv->nibble_commands = alps_v4_nibble_commands; 1571 priv->addr_command = PSMOUSE_CMD_DISABLE; 1572 break; 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; 1588 } 1589 } 1590 1591 static int alps_match_table(struct psmouse *psmouse, struct alps_data *priv, 1592 unsigned char *e7, unsigned char *ec) 1593 { 1594 const struct alps_model_info *model; 1595 int i; 1596 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; 1605 alps_set_defaults(priv); 1606 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 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 */ 1628 if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 1629 PSMOUSE_CMD_SETSCALE11, e6)) 1630 return -EIO; 1631 1632 if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 1633 return -EINVAL; 1634 1635 /* 1636 * Now get the "E7" and "EC" reports. These will uniquely identify 1637 * most ALPS touchpads. 1638 */ 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; 1645 1646 if (alps_match_table(psmouse, priv, e7, ec) == 0) { 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 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 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 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 1675 return 0; 1676 } 1677 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]); 1681 1682 return -EINVAL; 1683 } 1684 1685 static int alps_reconnect(struct psmouse *psmouse) 1686 { 1687 struct alps_data *priv = psmouse->private; 1688 1689 psmouse_reset(psmouse); 1690 1691 if (alps_identify(psmouse, priv) < 0) 1692 return -1; 1693 1694 return priv->hw_init(psmouse); 1695 } 1696 1697 static void alps_disconnect(struct psmouse *psmouse) 1698 { 1699 struct alps_data *priv = psmouse->private; 1700 1701 psmouse_reset(psmouse); 1702 del_timer_sync(&priv->timer); 1703 input_unregister_device(priv->dev2); 1704 kfree(priv); 1705 } 1706 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); 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); 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 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); 1728 } 1729 1730 int alps_init(struct psmouse *psmouse) 1731 { 1732 struct alps_data *priv; 1733 struct input_dev *dev1 = psmouse->dev, *dev2; 1734 1735 priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 1736 dev2 = input_allocate_device(); 1737 if (!priv || !dev2) 1738 goto init_fail; 1739 1740 priv->dev2 = dev2; 1741 setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); 1742 1743 psmouse->private = priv; 1744 1745 psmouse_reset(psmouse); 1746 1747 if (alps_identify(psmouse, priv) < 0) 1748 goto init_fail; 1749 1750 if (priv->hw_init(psmouse)) 1751 goto init_fail; 1752 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 */ 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); 1767 dev1->keybit[BIT_WORD(BTN_LEFT)] |= 1768 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 1769 1770 dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 1771 1772 priv->set_abs_params(priv, dev1); 1773 input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 1774 1775 if (priv->flags & ALPS_WHEEL) { 1776 dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 1777 dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 1778 } 1779 1780 if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 1781 dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 1782 dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 1783 } 1784 1785 if (priv->flags & ALPS_FOUR_BUTTONS) { 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 1794 snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); 1795 dev2->phys = priv->phys; 1796 dev2->name = (priv->flags & ALPS_DUALPOINT) ? 1797 "DualPoint Stick" : "PS/2 Mouse"; 1798 dev2->id.bustype = BUS_I8042; 1799 dev2->id.vendor = 0x0002; 1800 dev2->id.product = PSMOUSE_ALPS; 1801 dev2->id.version = 0x0000; 1802 dev2->dev.parent = &psmouse->ps2dev.serio->dev; 1803 1804 dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 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); 1808 1809 if (input_register_device(priv->dev2)) 1810 goto init_fail; 1811 1812 psmouse->protocol_handler = alps_process_byte; 1813 psmouse->poll = alps_poll; 1814 psmouse->disconnect = alps_disconnect; 1815 psmouse->reconnect = alps_reconnect; 1816 psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 1817 1818 /* We are having trouble resyncing ALPS touchpads so disable it for now */ 1819 psmouse->resync_time = 0; 1820 1821 return 0; 1822 1823 init_fail: 1824 psmouse_reset(psmouse); 1825 input_free_device(dev2); 1826 kfree(priv); 1827 psmouse->private = NULL; 1828 return -1; 1829 } 1830 1831 int alps_detect(struct psmouse *psmouse, bool set_properties) 1832 { 1833 struct alps_data dummy; 1834 1835 if (alps_identify(psmouse, &dummy) < 0) 1836 return -1; 1837 1838 if (set_properties) { 1839 psmouse->vendor = "ALPS"; 1840 psmouse->name = dummy.flags & ALPS_DUALPOINT ? 1841 "DualPoint TouchPad" : "GlidePoint"; 1842 psmouse->model = dummy.proto_version << 8; 1843 } 1844 return 0; 1845 } 1846 1847