1 /* 2 * Synaptics TouchPad PS/2 mouse driver 3 * 4 * 2003 Dmitry Torokhov <dtor@mail.ru> 5 * Added support for pass-through port. Special thanks to Peter Berg Larsen 6 * for explaining various Synaptics quirks. 7 * 8 * 2003 Peter Osterlund <petero2@telia.com> 9 * Ported to 2.5 input device infrastructure. 10 * 11 * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch> 12 * start merging tpconfig and gpm code to a xfree-input module 13 * adding some changes and extensions (ex. 3rd and 4th button) 14 * 15 * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu> 16 * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com> 17 * code for the special synaptics commands (from the tpconfig-source) 18 * 19 * This program is free software; you can redistribute it and/or modify it 20 * under the terms of the GNU General Public License version 2 as published by 21 * the Free Software Foundation. 22 * 23 * Trademarks are the property of their respective owners. 24 */ 25 26 #include <linux/module.h> 27 #include <linux/delay.h> 28 #include <linux/dmi.h> 29 #include <linux/input/mt.h> 30 #include <linux/serio.h> 31 #include <linux/libps2.h> 32 #include <linux/slab.h> 33 #include "psmouse.h" 34 #include "synaptics.h" 35 36 /* 37 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, 38 * section 2.3.2, which says that they should be valid regardless of the 39 * actual size of the sensor. 40 * Note that newer firmware allows querying device for maximum useable 41 * coordinates. 42 */ 43 #define XMIN 0 44 #define XMAX 6143 45 #define YMIN 0 46 #define YMAX 6143 47 #define XMIN_NOMINAL 1472 48 #define XMAX_NOMINAL 5472 49 #define YMIN_NOMINAL 1408 50 #define YMAX_NOMINAL 4448 51 52 /* Size in bits of absolute position values reported by the hardware */ 53 #define ABS_POS_BITS 13 54 55 /* 56 * These values should represent the absolute maximum value that will 57 * be reported for a positive position value. Some Synaptics firmware 58 * uses this value to indicate a finger near the edge of the touchpad 59 * whose precise position cannot be determined. 60 * 61 * At least one touchpad is known to report positions in excess of this 62 * value which are actually negative values truncated to the 13-bit 63 * reporting range. These values have never been observed to be lower 64 * than 8184 (i.e. -8), so we treat all values greater than 8176 as 65 * negative and any other value as positive. 66 */ 67 #define X_MAX_POSITIVE 8176 68 #define Y_MAX_POSITIVE 8176 69 70 /* maximum ABS_MT_POSITION displacement (in mm) */ 71 #define DMAX 10 72 73 /***************************************************************************** 74 * Stuff we need even when we do not want native Synaptics support 75 ****************************************************************************/ 76 77 /* 78 * Set the synaptics touchpad mode byte by special commands 79 */ 80 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) 81 { 82 unsigned char param[1]; 83 84 if (psmouse_sliced_command(psmouse, mode)) 85 return -1; 86 param[0] = SYN_PS_SET_MODE2; 87 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) 88 return -1; 89 return 0; 90 } 91 92 int synaptics_detect(struct psmouse *psmouse, bool set_properties) 93 { 94 struct ps2dev *ps2dev = &psmouse->ps2dev; 95 unsigned char param[4]; 96 97 param[0] = 0; 98 99 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 100 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 101 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 102 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 103 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); 104 105 if (param[1] != 0x47) 106 return -ENODEV; 107 108 if (set_properties) { 109 psmouse->vendor = "Synaptics"; 110 psmouse->name = "TouchPad"; 111 } 112 113 return 0; 114 } 115 116 void synaptics_reset(struct psmouse *psmouse) 117 { 118 /* reset touchpad back to relative mode, gestures enabled */ 119 synaptics_mode_cmd(psmouse, 0); 120 } 121 122 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS 123 124 static bool cr48_profile_sensor; 125 126 struct min_max_quirk { 127 const char * const *pnp_ids; 128 int x_min, x_max, y_min, y_max; 129 }; 130 131 static const struct min_max_quirk min_max_pnpid_table[] = { 132 { 133 (const char * const []){"LEN0033", NULL}, 134 1024, 5052, 2258, 4832 135 }, 136 { 137 (const char * const []){"LEN0035", "LEN0042", NULL}, 138 1232, 5710, 1156, 4696 139 }, 140 { 141 (const char * const []){"LEN0034", "LEN0036", "LEN0037", 142 "LEN0039", "LEN2002", "LEN2004", 143 NULL}, 144 1024, 5112, 2024, 4832 145 }, 146 { 147 (const char * const []){"LEN2001", NULL}, 148 1024, 5022, 2508, 4832 149 }, 150 { 151 (const char * const []){"LEN2006", NULL}, 152 1264, 5675, 1171, 4688 153 }, 154 { } 155 }; 156 157 /* This list has been kindly provided by Synaptics. */ 158 static const char * const topbuttonpad_pnp_ids[] = { 159 "LEN0017", 160 "LEN0018", 161 "LEN0019", 162 "LEN0023", 163 "LEN002A", 164 "LEN002B", 165 "LEN002C", 166 "LEN002D", 167 "LEN002E", 168 "LEN0033", /* Helix */ 169 "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ 170 "LEN0035", /* X240 */ 171 "LEN0036", /* T440 */ 172 "LEN0037", /* X1 Carbon 2nd */ 173 "LEN0038", 174 "LEN0039", /* T440s */ 175 "LEN0041", 176 "LEN0042", /* Yoga */ 177 "LEN0045", 178 "LEN0046", 179 "LEN0047", 180 "LEN0048", 181 "LEN0049", 182 "LEN2000", 183 "LEN2001", /* Edge E431 */ 184 "LEN2002", /* Edge E531 */ 185 "LEN2003", 186 "LEN2004", /* L440 */ 187 "LEN2005", 188 "LEN2006", 189 "LEN2007", 190 "LEN2008", 191 "LEN2009", 192 "LEN200A", 193 "LEN200B", 194 NULL 195 }; 196 197 /***************************************************************************** 198 * Synaptics communications functions 199 ****************************************************************************/ 200 201 /* 202 * Synaptics touchpads report the y coordinate from bottom to top, which is 203 * opposite from what userspace expects. 204 * This function is used to invert y before reporting. 205 */ 206 static int synaptics_invert_y(int y) 207 { 208 return YMAX_NOMINAL + YMIN_NOMINAL - y; 209 } 210 211 /* 212 * Send a command to the synpatics touchpad by special commands 213 */ 214 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) 215 { 216 if (psmouse_sliced_command(psmouse, c)) 217 return -1; 218 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) 219 return -1; 220 return 0; 221 } 222 223 /* 224 * Read the model-id bytes from the touchpad 225 * see also SYN_MODEL_* macros 226 */ 227 static int synaptics_model_id(struct psmouse *psmouse) 228 { 229 struct synaptics_data *priv = psmouse->private; 230 unsigned char mi[3]; 231 232 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) 233 return -1; 234 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; 235 return 0; 236 } 237 238 /* 239 * Read the board id from the touchpad 240 * The board id is encoded in the "QUERY MODES" response 241 */ 242 static int synaptics_board_id(struct psmouse *psmouse) 243 { 244 struct synaptics_data *priv = psmouse->private; 245 unsigned char bid[3]; 246 247 if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) 248 return -1; 249 priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; 250 return 0; 251 } 252 253 /* 254 * Read the firmware id from the touchpad 255 */ 256 static int synaptics_firmware_id(struct psmouse *psmouse) 257 { 258 struct synaptics_data *priv = psmouse->private; 259 unsigned char fwid[3]; 260 261 if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) 262 return -1; 263 priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; 264 return 0; 265 } 266 267 /* 268 * Read the capability-bits from the touchpad 269 * see also the SYN_CAP_* macros 270 */ 271 static int synaptics_capability(struct psmouse *psmouse) 272 { 273 struct synaptics_data *priv = psmouse->private; 274 unsigned char cap[3]; 275 276 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) 277 return -1; 278 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 279 priv->ext_cap = priv->ext_cap_0c = 0; 280 281 /* 282 * Older firmwares had submodel ID fixed to 0x47 283 */ 284 if (SYN_ID_FULL(priv->identity) < 0x705 && 285 SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { 286 return -1; 287 } 288 289 /* 290 * Unless capExtended is set the rest of the flags should be ignored 291 */ 292 if (!SYN_CAP_EXTENDED(priv->capabilities)) 293 priv->capabilities = 0; 294 295 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { 296 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { 297 psmouse_warn(psmouse, 298 "device claims to have extended capabilities, but I'm not able to read them.\n"); 299 } else { 300 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 301 302 /* 303 * if nExtBtn is greater than 8 it should be considered 304 * invalid and treated as 0 305 */ 306 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) 307 priv->ext_cap &= 0xff0fff; 308 } 309 } 310 311 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { 312 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { 313 psmouse_warn(psmouse, 314 "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); 315 } else { 316 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 317 } 318 } 319 320 return 0; 321 } 322 323 /* 324 * Identify Touchpad 325 * See also the SYN_ID_* macros 326 */ 327 static int synaptics_identify(struct psmouse *psmouse) 328 { 329 struct synaptics_data *priv = psmouse->private; 330 unsigned char id[3]; 331 332 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) 333 return -1; 334 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; 335 if (SYN_ID_IS_SYNAPTICS(priv->identity)) 336 return 0; 337 return -1; 338 } 339 340 /* 341 * Read touchpad resolution and maximum reported coordinates 342 * Resolution is left zero if touchpad does not support the query 343 */ 344 345 static int synaptics_resolution(struct psmouse *psmouse) 346 { 347 struct synaptics_data *priv = psmouse->private; 348 unsigned char resp[3]; 349 int i; 350 351 if (SYN_ID_MAJOR(priv->identity) < 4) 352 return 0; 353 354 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { 355 if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { 356 priv->x_res = resp[0]; /* x resolution in units/mm */ 357 priv->y_res = resp[2]; /* y resolution in units/mm */ 358 } 359 } 360 361 for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { 362 if (psmouse_matches_pnp_id(psmouse, 363 min_max_pnpid_table[i].pnp_ids)) { 364 priv->x_min = min_max_pnpid_table[i].x_min; 365 priv->x_max = min_max_pnpid_table[i].x_max; 366 priv->y_min = min_max_pnpid_table[i].y_min; 367 priv->y_max = min_max_pnpid_table[i].y_max; 368 return 0; 369 } 370 } 371 372 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && 373 SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { 374 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { 375 psmouse_warn(psmouse, 376 "device claims to have max coordinates query, but I'm not able to read it.\n"); 377 } else { 378 priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); 379 priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); 380 } 381 } 382 383 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && 384 SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { 385 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { 386 psmouse_warn(psmouse, 387 "device claims to have min coordinates query, but I'm not able to read it.\n"); 388 } else { 389 priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); 390 priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); 391 } 392 } 393 394 return 0; 395 } 396 397 static int synaptics_query_hardware(struct psmouse *psmouse) 398 { 399 if (synaptics_identify(psmouse)) 400 return -1; 401 if (synaptics_model_id(psmouse)) 402 return -1; 403 if (synaptics_firmware_id(psmouse)) 404 return -1; 405 if (synaptics_board_id(psmouse)) 406 return -1; 407 if (synaptics_capability(psmouse)) 408 return -1; 409 if (synaptics_resolution(psmouse)) 410 return -1; 411 412 return 0; 413 } 414 415 static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) 416 { 417 static unsigned char param = 0xc8; 418 struct synaptics_data *priv = psmouse->private; 419 420 if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || 421 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) 422 return 0; 423 424 if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) 425 return -1; 426 427 if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) 428 return -1; 429 430 /* Advanced gesture mode also sends multi finger data */ 431 priv->capabilities |= BIT(1); 432 433 return 0; 434 } 435 436 static int synaptics_set_mode(struct psmouse *psmouse) 437 { 438 struct synaptics_data *priv = psmouse->private; 439 440 priv->mode = 0; 441 if (priv->absolute_mode) 442 priv->mode |= SYN_BIT_ABSOLUTE_MODE; 443 if (priv->disable_gesture) 444 priv->mode |= SYN_BIT_DISABLE_GESTURE; 445 if (psmouse->rate >= 80) 446 priv->mode |= SYN_BIT_HIGH_RATE; 447 if (SYN_CAP_EXTENDED(priv->capabilities)) 448 priv->mode |= SYN_BIT_W_MODE; 449 450 if (synaptics_mode_cmd(psmouse, priv->mode)) 451 return -1; 452 453 if (priv->absolute_mode && 454 synaptics_set_advanced_gesture_mode(psmouse)) { 455 psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); 456 return -1; 457 } 458 459 return 0; 460 } 461 462 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) 463 { 464 struct synaptics_data *priv = psmouse->private; 465 466 if (rate >= 80) { 467 priv->mode |= SYN_BIT_HIGH_RATE; 468 psmouse->rate = 80; 469 } else { 470 priv->mode &= ~SYN_BIT_HIGH_RATE; 471 psmouse->rate = 40; 472 } 473 474 synaptics_mode_cmd(psmouse, priv->mode); 475 } 476 477 /***************************************************************************** 478 * Synaptics pass-through PS/2 port support 479 ****************************************************************************/ 480 static int synaptics_pt_write(struct serio *serio, unsigned char c) 481 { 482 struct psmouse *parent = serio_get_drvdata(serio->parent); 483 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ 484 485 if (psmouse_sliced_command(parent, c)) 486 return -1; 487 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) 488 return -1; 489 return 0; 490 } 491 492 static int synaptics_pt_start(struct serio *serio) 493 { 494 struct psmouse *parent = serio_get_drvdata(serio->parent); 495 struct synaptics_data *priv = parent->private; 496 497 serio_pause_rx(parent->ps2dev.serio); 498 priv->pt_port = serio; 499 serio_continue_rx(parent->ps2dev.serio); 500 501 return 0; 502 } 503 504 static void synaptics_pt_stop(struct serio *serio) 505 { 506 struct psmouse *parent = serio_get_drvdata(serio->parent); 507 struct synaptics_data *priv = parent->private; 508 509 serio_pause_rx(parent->ps2dev.serio); 510 priv->pt_port = NULL; 511 serio_continue_rx(parent->ps2dev.serio); 512 } 513 514 static int synaptics_is_pt_packet(unsigned char *buf) 515 { 516 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; 517 } 518 519 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) 520 { 521 struct psmouse *child = serio_get_drvdata(ptport); 522 523 if (child && child->state == PSMOUSE_ACTIVATED) { 524 serio_interrupt(ptport, packet[1], 0); 525 serio_interrupt(ptport, packet[4], 0); 526 serio_interrupt(ptport, packet[5], 0); 527 if (child->pktsize == 4) 528 serio_interrupt(ptport, packet[2], 0); 529 } else 530 serio_interrupt(ptport, packet[1], 0); 531 } 532 533 static void synaptics_pt_activate(struct psmouse *psmouse) 534 { 535 struct synaptics_data *priv = psmouse->private; 536 struct psmouse *child = serio_get_drvdata(priv->pt_port); 537 538 /* adjust the touchpad to child's choice of protocol */ 539 if (child) { 540 if (child->pktsize == 4) 541 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; 542 else 543 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; 544 545 if (synaptics_mode_cmd(psmouse, priv->mode)) 546 psmouse_warn(psmouse, 547 "failed to switch guest protocol\n"); 548 } 549 } 550 551 static void synaptics_pt_create(struct psmouse *psmouse) 552 { 553 struct serio *serio; 554 555 serio = kzalloc(sizeof(struct serio), GFP_KERNEL); 556 if (!serio) { 557 psmouse_err(psmouse, 558 "not enough memory for pass-through port\n"); 559 return; 560 } 561 562 serio->id.type = SERIO_PS_PSTHRU; 563 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); 564 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); 565 serio->write = synaptics_pt_write; 566 serio->start = synaptics_pt_start; 567 serio->stop = synaptics_pt_stop; 568 serio->parent = psmouse->ps2dev.serio; 569 570 psmouse->pt_activate = synaptics_pt_activate; 571 572 psmouse_info(psmouse, "serio: %s port at %s\n", 573 serio->name, psmouse->phys); 574 serio_register_port(serio); 575 } 576 577 /***************************************************************************** 578 * Functions to interpret the absolute mode packets 579 ****************************************************************************/ 580 581 static void synaptics_parse_agm(const unsigned char buf[], 582 struct synaptics_data *priv, 583 struct synaptics_hw_state *hw) 584 { 585 struct synaptics_hw_state *agm = &priv->agm; 586 int agm_packet_type; 587 588 agm_packet_type = (buf[5] & 0x30) >> 4; 589 switch (agm_packet_type) { 590 case 1: 591 /* Gesture packet: (x, y, z) half resolution */ 592 agm->w = hw->w; 593 agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; 594 agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; 595 agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; 596 break; 597 598 case 2: 599 /* AGM-CONTACT packet: we are only interested in the count */ 600 priv->agm_count = buf[1]; 601 break; 602 603 default: 604 break; 605 } 606 } 607 608 static bool is_forcepad; 609 610 static int synaptics_parse_hw_state(const unsigned char buf[], 611 struct synaptics_data *priv, 612 struct synaptics_hw_state *hw) 613 { 614 memset(hw, 0, sizeof(struct synaptics_hw_state)); 615 616 if (SYN_MODEL_NEWABS(priv->model_id)) { 617 hw->w = (((buf[0] & 0x30) >> 2) | 618 ((buf[0] & 0x04) >> 1) | 619 ((buf[3] & 0x04) >> 2)); 620 621 if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || 622 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && 623 hw->w == 2) { 624 synaptics_parse_agm(buf, priv, hw); 625 return 1; 626 } 627 628 hw->x = (((buf[3] & 0x10) << 8) | 629 ((buf[1] & 0x0f) << 8) | 630 buf[4]); 631 hw->y = (((buf[3] & 0x20) << 7) | 632 ((buf[1] & 0xf0) << 4) | 633 buf[5]); 634 hw->z = buf[2]; 635 636 hw->left = (buf[0] & 0x01) ? 1 : 0; 637 hw->right = (buf[0] & 0x02) ? 1 : 0; 638 639 if (is_forcepad) { 640 /* 641 * ForcePads, like Clickpads, use middle button 642 * bits to report primary button clicks. 643 * Unfortunately they report primary button not 644 * only when user presses on the pad above certain 645 * threshold, but also when there are more than one 646 * finger on the touchpad, which interferes with 647 * out multi-finger gestures. 648 */ 649 if (hw->z == 0) { 650 /* No contacts */ 651 priv->press = priv->report_press = false; 652 } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) { 653 /* 654 * Single-finger touch with pressure above 655 * the threshold. If pressure stays long 656 * enough, we'll start reporting primary 657 * button. We rely on the device continuing 658 * sending data even if finger does not 659 * move. 660 */ 661 if (!priv->press) { 662 priv->press_start = jiffies; 663 priv->press = true; 664 } else if (time_after(jiffies, 665 priv->press_start + 666 msecs_to_jiffies(50))) { 667 priv->report_press = true; 668 } 669 } else { 670 priv->press = false; 671 } 672 673 hw->left = priv->report_press; 674 675 } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { 676 /* 677 * Clickpad's button is transmitted as middle button, 678 * however, since it is primary button, we will report 679 * it as BTN_LEFT. 680 */ 681 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 682 683 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 684 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 685 if (hw->w == 2) 686 hw->scroll = (signed char)(buf[1]); 687 } 688 689 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 690 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 691 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; 692 } 693 694 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && 695 ((buf[0] ^ buf[3]) & 0x02)) { 696 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { 697 default: 698 /* 699 * if nExtBtn is greater than 8 it should be 700 * considered invalid and treated as 0 701 */ 702 break; 703 case 8: 704 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; 705 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; 706 case 6: 707 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; 708 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; 709 case 4: 710 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; 711 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; 712 case 2: 713 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; 714 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; 715 } 716 } 717 } else { 718 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); 719 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); 720 721 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); 722 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); 723 724 hw->left = (buf[0] & 0x01) ? 1 : 0; 725 hw->right = (buf[0] & 0x02) ? 1 : 0; 726 } 727 728 /* 729 * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE 730 * is used by some firmware to indicate a finger at the edge of 731 * the touchpad whose precise position cannot be determined, so 732 * convert these values to the maximum axis value. 733 */ 734 if (hw->x > X_MAX_POSITIVE) 735 hw->x -= 1 << ABS_POS_BITS; 736 else if (hw->x == X_MAX_POSITIVE) 737 hw->x = XMAX; 738 739 if (hw->y > Y_MAX_POSITIVE) 740 hw->y -= 1 << ABS_POS_BITS; 741 else if (hw->y == Y_MAX_POSITIVE) 742 hw->y = YMAX; 743 744 return 0; 745 } 746 747 static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, 748 bool active, int x, int y) 749 { 750 input_mt_slot(dev, slot); 751 input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); 752 if (active) { 753 input_report_abs(dev, ABS_MT_POSITION_X, x); 754 input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); 755 } 756 } 757 758 static void synaptics_report_semi_mt_data(struct input_dev *dev, 759 const struct synaptics_hw_state *a, 760 const struct synaptics_hw_state *b, 761 int num_fingers) 762 { 763 if (num_fingers >= 2) { 764 synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), 765 min(a->y, b->y)); 766 synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), 767 max(a->y, b->y)); 768 } else if (num_fingers == 1) { 769 synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); 770 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); 771 } else { 772 synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); 773 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); 774 } 775 } 776 777 static void synaptics_report_buttons(struct psmouse *psmouse, 778 const struct synaptics_hw_state *hw) 779 { 780 struct input_dev *dev = psmouse->dev; 781 struct synaptics_data *priv = psmouse->private; 782 int i; 783 784 input_report_key(dev, BTN_LEFT, hw->left); 785 input_report_key(dev, BTN_RIGHT, hw->right); 786 787 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 788 input_report_key(dev, BTN_MIDDLE, hw->middle); 789 790 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 791 input_report_key(dev, BTN_FORWARD, hw->up); 792 input_report_key(dev, BTN_BACK, hw->down); 793 } 794 795 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 796 input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); 797 } 798 799 static void synaptics_report_mt_data(struct psmouse *psmouse, 800 const struct synaptics_hw_state *sgm, 801 int num_fingers) 802 { 803 struct input_dev *dev = psmouse->dev; 804 struct synaptics_data *priv = psmouse->private; 805 const struct synaptics_hw_state *hw[2] = { sgm, &priv->agm }; 806 struct input_mt_pos pos[2]; 807 int slot[2], nsemi, i; 808 809 nsemi = clamp_val(num_fingers, 0, 2); 810 811 for (i = 0; i < nsemi; i++) { 812 pos[i].x = hw[i]->x; 813 pos[i].y = synaptics_invert_y(hw[i]->y); 814 } 815 816 input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res); 817 818 for (i = 0; i < nsemi; i++) { 819 input_mt_slot(dev, slot[i]); 820 input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 821 input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x); 822 input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y); 823 input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z); 824 } 825 826 input_mt_drop_unused(dev); 827 828 /* Don't use active slot count to generate BTN_TOOL events. */ 829 input_mt_report_pointer_emulation(dev, false); 830 831 /* Send the number of fingers reported by touchpad itself. */ 832 input_mt_report_finger_count(dev, num_fingers); 833 834 synaptics_report_buttons(psmouse, sgm); 835 836 input_sync(dev); 837 } 838 839 static void synaptics_image_sensor_process(struct psmouse *psmouse, 840 struct synaptics_hw_state *sgm) 841 { 842 struct synaptics_data *priv = psmouse->private; 843 int num_fingers; 844 845 /* 846 * Update mt_state using the new finger count and current mt_state. 847 */ 848 if (sgm->z == 0) 849 num_fingers = 0; 850 else if (sgm->w >= 4) 851 num_fingers = 1; 852 else if (sgm->w == 0) 853 num_fingers = 2; 854 else if (sgm->w == 1) 855 num_fingers = priv->agm_count ? priv->agm_count : 3; 856 else 857 num_fingers = 4; 858 859 /* Send resulting input events to user space */ 860 synaptics_report_mt_data(psmouse, sgm, num_fingers); 861 } 862 863 /* 864 * called for each full received packet from the touchpad 865 */ 866 static void synaptics_process_packet(struct psmouse *psmouse) 867 { 868 struct input_dev *dev = psmouse->dev; 869 struct synaptics_data *priv = psmouse->private; 870 struct synaptics_hw_state hw; 871 int num_fingers; 872 int finger_width; 873 874 if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) 875 return; 876 877 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { 878 synaptics_image_sensor_process(psmouse, &hw); 879 return; 880 } 881 882 if (hw.scroll) { 883 priv->scroll += hw.scroll; 884 885 while (priv->scroll >= 4) { 886 input_report_key(dev, BTN_BACK, !hw.down); 887 input_sync(dev); 888 input_report_key(dev, BTN_BACK, hw.down); 889 input_sync(dev); 890 priv->scroll -= 4; 891 } 892 while (priv->scroll <= -4) { 893 input_report_key(dev, BTN_FORWARD, !hw.up); 894 input_sync(dev); 895 input_report_key(dev, BTN_FORWARD, hw.up); 896 input_sync(dev); 897 priv->scroll += 4; 898 } 899 return; 900 } 901 902 if (hw.z > 0 && hw.x > 1) { 903 num_fingers = 1; 904 finger_width = 5; 905 if (SYN_CAP_EXTENDED(priv->capabilities)) { 906 switch (hw.w) { 907 case 0 ... 1: 908 if (SYN_CAP_MULTIFINGER(priv->capabilities)) 909 num_fingers = hw.w + 2; 910 break; 911 case 2: 912 if (SYN_MODEL_PEN(priv->model_id)) 913 ; /* Nothing, treat a pen as a single finger */ 914 break; 915 case 4 ... 15: 916 if (SYN_CAP_PALMDETECT(priv->capabilities)) 917 finger_width = hw.w; 918 break; 919 } 920 } 921 } else { 922 num_fingers = 0; 923 finger_width = 0; 924 } 925 926 if (cr48_profile_sensor) { 927 synaptics_report_mt_data(psmouse, &hw, num_fingers); 928 return; 929 } 930 931 if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) 932 synaptics_report_semi_mt_data(dev, &hw, &priv->agm, 933 num_fingers); 934 935 /* Post events 936 * BTN_TOUCH has to be first as mousedev relies on it when doing 937 * absolute -> relative conversion 938 */ 939 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); 940 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); 941 942 if (num_fingers > 0) { 943 input_report_abs(dev, ABS_X, hw.x); 944 input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); 945 } 946 input_report_abs(dev, ABS_PRESSURE, hw.z); 947 948 if (SYN_CAP_PALMDETECT(priv->capabilities)) 949 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); 950 951 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); 952 if (SYN_CAP_MULTIFINGER(priv->capabilities)) { 953 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); 954 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); 955 } 956 957 synaptics_report_buttons(psmouse, &hw); 958 959 input_sync(dev); 960 } 961 962 static int synaptics_validate_byte(struct psmouse *psmouse, 963 int idx, unsigned char pkt_type) 964 { 965 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; 966 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; 967 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; 968 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; 969 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; 970 const char *packet = psmouse->packet; 971 972 if (idx < 0 || idx > 4) 973 return 0; 974 975 switch (pkt_type) { 976 977 case SYN_NEWABS: 978 case SYN_NEWABS_RELAXED: 979 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; 980 981 case SYN_NEWABS_STRICT: 982 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; 983 984 case SYN_OLDABS: 985 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; 986 987 default: 988 psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); 989 return 0; 990 } 991 } 992 993 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) 994 { 995 int i; 996 997 for (i = 0; i < 5; i++) 998 if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { 999 psmouse_info(psmouse, "using relaxed packet validation\n"); 1000 return SYN_NEWABS_RELAXED; 1001 } 1002 1003 return SYN_NEWABS_STRICT; 1004 } 1005 1006 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) 1007 { 1008 struct synaptics_data *priv = psmouse->private; 1009 1010 if (psmouse->pktcnt >= 6) { /* Full packet received */ 1011 if (unlikely(priv->pkt_type == SYN_NEWABS)) 1012 priv->pkt_type = synaptics_detect_pkt_type(psmouse); 1013 1014 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && 1015 synaptics_is_pt_packet(psmouse->packet)) { 1016 if (priv->pt_port) 1017 synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); 1018 } else 1019 synaptics_process_packet(psmouse); 1020 1021 return PSMOUSE_FULL_PACKET; 1022 } 1023 1024 return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? 1025 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; 1026 } 1027 1028 /***************************************************************************** 1029 * Driver initialization/cleanup functions 1030 ****************************************************************************/ 1031 static void set_abs_position_params(struct input_dev *dev, 1032 struct synaptics_data *priv, int x_code, 1033 int y_code) 1034 { 1035 int x_min = priv->x_min ?: XMIN_NOMINAL; 1036 int x_max = priv->x_max ?: XMAX_NOMINAL; 1037 int y_min = priv->y_min ?: YMIN_NOMINAL; 1038 int y_max = priv->y_max ?: YMAX_NOMINAL; 1039 int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ? 1040 SYN_REDUCED_FILTER_FUZZ : 0; 1041 1042 input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); 1043 input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); 1044 input_abs_set_res(dev, x_code, priv->x_res); 1045 input_abs_set_res(dev, y_code, priv->y_res); 1046 } 1047 1048 static void set_input_params(struct psmouse *psmouse, 1049 struct synaptics_data *priv) 1050 { 1051 struct input_dev *dev = psmouse->dev; 1052 int i; 1053 1054 /* Things that apply to both modes */ 1055 __set_bit(INPUT_PROP_POINTER, dev->propbit); 1056 __set_bit(EV_KEY, dev->evbit); 1057 __set_bit(BTN_LEFT, dev->keybit); 1058 __set_bit(BTN_RIGHT, dev->keybit); 1059 1060 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 1061 __set_bit(BTN_MIDDLE, dev->keybit); 1062 1063 if (!priv->absolute_mode) { 1064 /* Relative mode */ 1065 __set_bit(EV_REL, dev->evbit); 1066 __set_bit(REL_X, dev->relbit); 1067 __set_bit(REL_Y, dev->relbit); 1068 return; 1069 } 1070 1071 /* Absolute mode */ 1072 __set_bit(EV_ABS, dev->evbit); 1073 set_abs_position_params(dev, priv, ABS_X, ABS_Y); 1074 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); 1075 1076 if (cr48_profile_sensor) 1077 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); 1078 1079 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { 1080 set_abs_position_params(dev, priv, ABS_MT_POSITION_X, 1081 ABS_MT_POSITION_Y); 1082 /* Image sensors can report per-contact pressure */ 1083 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); 1084 input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK); 1085 1086 /* Image sensors can signal 4 and 5 finger clicks */ 1087 __set_bit(BTN_TOOL_QUADTAP, dev->keybit); 1088 __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); 1089 } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { 1090 set_abs_position_params(dev, priv, ABS_MT_POSITION_X, 1091 ABS_MT_POSITION_Y); 1092 /* 1093 * Profile sensor in CR-48 tracks contacts reasonably well, 1094 * other non-image sensors with AGM use semi-mt. 1095 */ 1096 input_mt_init_slots(dev, 2, 1097 INPUT_MT_POINTER | 1098 (cr48_profile_sensor ? 1099 INPUT_MT_TRACK : INPUT_MT_SEMI_MT)); 1100 } 1101 1102 if (SYN_CAP_PALMDETECT(priv->capabilities)) 1103 input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); 1104 1105 __set_bit(BTN_TOUCH, dev->keybit); 1106 __set_bit(BTN_TOOL_FINGER, dev->keybit); 1107 1108 if (SYN_CAP_MULTIFINGER(priv->capabilities)) { 1109 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); 1110 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); 1111 } 1112 1113 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || 1114 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 1115 __set_bit(BTN_FORWARD, dev->keybit); 1116 __set_bit(BTN_BACK, dev->keybit); 1117 } 1118 1119 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 1120 __set_bit(BTN_0 + i, dev->keybit); 1121 1122 __clear_bit(EV_REL, dev->evbit); 1123 __clear_bit(REL_X, dev->relbit); 1124 __clear_bit(REL_Y, dev->relbit); 1125 1126 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { 1127 __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); 1128 if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) 1129 __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); 1130 /* Clickpads report only left button */ 1131 __clear_bit(BTN_RIGHT, dev->keybit); 1132 __clear_bit(BTN_MIDDLE, dev->keybit); 1133 } 1134 } 1135 1136 static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, 1137 void *data, char *buf) 1138 { 1139 struct synaptics_data *priv = psmouse->private; 1140 1141 return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); 1142 } 1143 1144 static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, 1145 void *data, const char *buf, 1146 size_t len) 1147 { 1148 struct synaptics_data *priv = psmouse->private; 1149 unsigned int value; 1150 int err; 1151 1152 err = kstrtouint(buf, 10, &value); 1153 if (err) 1154 return err; 1155 1156 if (value > 1) 1157 return -EINVAL; 1158 1159 if (value == priv->disable_gesture) 1160 return len; 1161 1162 priv->disable_gesture = value; 1163 if (value) 1164 priv->mode |= SYN_BIT_DISABLE_GESTURE; 1165 else 1166 priv->mode &= ~SYN_BIT_DISABLE_GESTURE; 1167 1168 if (synaptics_mode_cmd(psmouse, priv->mode)) 1169 return -EIO; 1170 1171 return len; 1172 } 1173 1174 PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, 1175 synaptics_show_disable_gesture, 1176 synaptics_set_disable_gesture); 1177 1178 static void synaptics_disconnect(struct psmouse *psmouse) 1179 { 1180 struct synaptics_data *priv = psmouse->private; 1181 1182 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) 1183 device_remove_file(&psmouse->ps2dev.serio->dev, 1184 &psmouse_attr_disable_gesture.dattr); 1185 1186 synaptics_reset(psmouse); 1187 kfree(priv); 1188 psmouse->private = NULL; 1189 } 1190 1191 static int synaptics_reconnect(struct psmouse *psmouse) 1192 { 1193 struct synaptics_data *priv = psmouse->private; 1194 struct synaptics_data old_priv = *priv; 1195 unsigned char param[2]; 1196 int retry = 0; 1197 int error; 1198 1199 do { 1200 psmouse_reset(psmouse); 1201 if (retry) { 1202 /* 1203 * On some boxes, right after resuming, the touchpad 1204 * needs some time to finish initializing (I assume 1205 * it needs time to calibrate) and start responding 1206 * to Synaptics-specific queries, so let's wait a 1207 * bit. 1208 */ 1209 ssleep(1); 1210 } 1211 ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); 1212 error = synaptics_detect(psmouse, 0); 1213 } while (error && ++retry < 3); 1214 1215 if (error) 1216 return -1; 1217 1218 if (retry > 1) 1219 psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); 1220 1221 if (synaptics_query_hardware(psmouse)) { 1222 psmouse_err(psmouse, "Unable to query device.\n"); 1223 return -1; 1224 } 1225 1226 if (synaptics_set_mode(psmouse)) { 1227 psmouse_err(psmouse, "Unable to initialize device.\n"); 1228 return -1; 1229 } 1230 1231 if (old_priv.identity != priv->identity || 1232 old_priv.model_id != priv->model_id || 1233 old_priv.capabilities != priv->capabilities || 1234 old_priv.ext_cap != priv->ext_cap) { 1235 psmouse_err(psmouse, 1236 "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", 1237 old_priv.identity, priv->identity, 1238 old_priv.model_id, priv->model_id, 1239 old_priv.capabilities, priv->capabilities, 1240 old_priv.ext_cap, priv->ext_cap); 1241 return -1; 1242 } 1243 1244 return 0; 1245 } 1246 1247 static bool impaired_toshiba_kbc; 1248 1249 static const struct dmi_system_id toshiba_dmi_table[] __initconst = { 1250 #if defined(CONFIG_DMI) && defined(CONFIG_X86) 1251 { 1252 /* Toshiba Satellite */ 1253 .matches = { 1254 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 1255 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), 1256 }, 1257 }, 1258 { 1259 /* Toshiba Dynabook */ 1260 .matches = { 1261 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 1262 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), 1263 }, 1264 }, 1265 { 1266 /* Toshiba Portege M300 */ 1267 .matches = { 1268 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 1269 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), 1270 }, 1271 1272 }, 1273 { 1274 /* Toshiba Portege M300 */ 1275 .matches = { 1276 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 1277 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), 1278 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), 1279 }, 1280 1281 }, 1282 #endif 1283 { } 1284 }; 1285 1286 static bool broken_olpc_ec; 1287 1288 static const struct dmi_system_id olpc_dmi_table[] __initconst = { 1289 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) 1290 { 1291 /* OLPC XO-1 or XO-1.5 */ 1292 .matches = { 1293 DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), 1294 DMI_MATCH(DMI_PRODUCT_NAME, "XO"), 1295 }, 1296 }, 1297 #endif 1298 { } 1299 }; 1300 1301 static const struct dmi_system_id __initconst cr48_dmi_table[] = { 1302 #if defined(CONFIG_DMI) && defined(CONFIG_X86) 1303 { 1304 /* Cr-48 Chromebook (Codename Mario) */ 1305 .matches = { 1306 DMI_MATCH(DMI_SYS_VENDOR, "IEC"), 1307 DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), 1308 }, 1309 }, 1310 #endif 1311 { } 1312 }; 1313 1314 static const struct dmi_system_id forcepad_dmi_table[] __initconst = { 1315 #if defined(CONFIG_DMI) && defined(CONFIG_X86) 1316 { 1317 .matches = { 1318 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1319 DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Folio 1040 G1"), 1320 }, 1321 }, 1322 #endif 1323 { } 1324 }; 1325 1326 void __init synaptics_module_init(void) 1327 { 1328 impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); 1329 broken_olpc_ec = dmi_check_system(olpc_dmi_table); 1330 cr48_profile_sensor = dmi_check_system(cr48_dmi_table); 1331 1332 /* 1333 * Unfortunately ForcePad capability is not exported over PS/2, 1334 * so we have to resort to checking DMI. 1335 */ 1336 is_forcepad = dmi_check_system(forcepad_dmi_table); 1337 } 1338 1339 static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) 1340 { 1341 struct synaptics_data *priv; 1342 int err = -1; 1343 1344 /* 1345 * The OLPC XO has issues with Synaptics' absolute mode; the constant 1346 * packet spew overloads the EC such that key presses on the keyboard 1347 * are missed. Given that, don't even attempt to use Absolute mode. 1348 * Relative mode seems to work just fine. 1349 */ 1350 if (absolute_mode && broken_olpc_ec) { 1351 psmouse_info(psmouse, 1352 "OLPC XO detected, not enabling Synaptics protocol.\n"); 1353 return -ENODEV; 1354 } 1355 1356 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); 1357 if (!priv) 1358 return -ENOMEM; 1359 1360 psmouse_reset(psmouse); 1361 1362 if (synaptics_query_hardware(psmouse)) { 1363 psmouse_err(psmouse, "Unable to query device.\n"); 1364 goto init_fail; 1365 } 1366 1367 priv->absolute_mode = absolute_mode; 1368 if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) 1369 priv->disable_gesture = true; 1370 1371 if (synaptics_set_mode(psmouse)) { 1372 psmouse_err(psmouse, "Unable to initialize device.\n"); 1373 goto init_fail; 1374 } 1375 1376 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; 1377 1378 psmouse_info(psmouse, 1379 "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", 1380 SYN_ID_MODEL(priv->identity), 1381 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), 1382 priv->model_id, 1383 priv->capabilities, priv->ext_cap, priv->ext_cap_0c, 1384 priv->board_id, priv->firmware_id); 1385 1386 set_input_params(psmouse, priv); 1387 1388 /* 1389 * Encode touchpad model so that it can be used to set 1390 * input device->id.version and be visible to userspace. 1391 * Because version is __u16 we have to drop something. 1392 * Hardware info bits seem to be good candidates as they 1393 * are documented to be for Synaptics corp. internal use. 1394 */ 1395 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | 1396 (priv->model_id & 0x000000ff); 1397 1398 if (absolute_mode) { 1399 psmouse->protocol_handler = synaptics_process_byte; 1400 psmouse->pktsize = 6; 1401 } else { 1402 /* Relative mode follows standard PS/2 mouse protocol */ 1403 psmouse->protocol_handler = psmouse_process_byte; 1404 psmouse->pktsize = 3; 1405 } 1406 1407 psmouse->set_rate = synaptics_set_rate; 1408 psmouse->disconnect = synaptics_disconnect; 1409 psmouse->reconnect = synaptics_reconnect; 1410 psmouse->cleanup = synaptics_reset; 1411 /* Synaptics can usually stay in sync without extra help */ 1412 psmouse->resync_time = 0; 1413 1414 if (SYN_CAP_PASS_THROUGH(priv->capabilities)) 1415 synaptics_pt_create(psmouse); 1416 1417 /* 1418 * Toshiba's KBC seems to have trouble handling data from 1419 * Synaptics at full rate. Switch to a lower rate (roughly 1420 * the same rate as a standard PS/2 mouse). 1421 */ 1422 if (psmouse->rate >= 80 && impaired_toshiba_kbc) { 1423 psmouse_info(psmouse, 1424 "Toshiba %s detected, limiting rate to 40pps.\n", 1425 dmi_get_system_info(DMI_PRODUCT_NAME)); 1426 psmouse->rate = 40; 1427 } 1428 1429 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { 1430 err = device_create_file(&psmouse->ps2dev.serio->dev, 1431 &psmouse_attr_disable_gesture.dattr); 1432 if (err) { 1433 psmouse_err(psmouse, 1434 "Failed to create disable_gesture attribute (%d)", 1435 err); 1436 goto init_fail; 1437 } 1438 } 1439 1440 return 0; 1441 1442 init_fail: 1443 kfree(priv); 1444 return err; 1445 } 1446 1447 int synaptics_init(struct psmouse *psmouse) 1448 { 1449 return __synaptics_init(psmouse, true); 1450 } 1451 1452 int synaptics_init_relative(struct psmouse *psmouse) 1453 { 1454 return __synaptics_init(psmouse, false); 1455 } 1456 1457 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ 1458 1459 void __init synaptics_module_init(void) 1460 { 1461 } 1462 1463 int synaptics_init(struct psmouse *psmouse) 1464 { 1465 return -ENOSYS; 1466 } 1467 1468 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ 1469