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/dmi.h> 28 #include <linux/input.h> 29 #include <linux/serio.h> 30 #include <linux/libps2.h> 31 #include <linux/slab.h> 32 #include "psmouse.h" 33 #include "synaptics.h" 34 35 /* 36 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, 37 * section 2.3.2, which says that they should be valid regardless of the 38 * actual size of the sensor. 39 * Note that newer firmware allows querying device for maximum useable 40 * coordinates. 41 */ 42 #define XMIN_NOMINAL 1472 43 #define XMAX_NOMINAL 5472 44 #define YMIN_NOMINAL 1408 45 #define YMAX_NOMINAL 4448 46 47 48 /***************************************************************************** 49 * Stuff we need even when we do not want native Synaptics support 50 ****************************************************************************/ 51 52 /* 53 * Set the synaptics touchpad mode byte by special commands 54 */ 55 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) 56 { 57 unsigned char param[1]; 58 59 if (psmouse_sliced_command(psmouse, mode)) 60 return -1; 61 param[0] = SYN_PS_SET_MODE2; 62 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) 63 return -1; 64 return 0; 65 } 66 67 int synaptics_detect(struct psmouse *psmouse, bool set_properties) 68 { 69 struct ps2dev *ps2dev = &psmouse->ps2dev; 70 unsigned char param[4]; 71 72 param[0] = 0; 73 74 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 75 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 76 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 77 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 78 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); 79 80 if (param[1] != 0x47) 81 return -ENODEV; 82 83 if (set_properties) { 84 psmouse->vendor = "Synaptics"; 85 psmouse->name = "TouchPad"; 86 } 87 88 return 0; 89 } 90 91 void synaptics_reset(struct psmouse *psmouse) 92 { 93 /* reset touchpad back to relative mode, gestures enabled */ 94 synaptics_mode_cmd(psmouse, 0); 95 } 96 97 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS 98 99 /***************************************************************************** 100 * Synaptics communications functions 101 ****************************************************************************/ 102 103 /* 104 * Send a command to the synpatics touchpad by special commands 105 */ 106 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) 107 { 108 if (psmouse_sliced_command(psmouse, c)) 109 return -1; 110 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) 111 return -1; 112 return 0; 113 } 114 115 /* 116 * Read the model-id bytes from the touchpad 117 * see also SYN_MODEL_* macros 118 */ 119 static int synaptics_model_id(struct psmouse *psmouse) 120 { 121 struct synaptics_data *priv = psmouse->private; 122 unsigned char mi[3]; 123 124 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) 125 return -1; 126 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; 127 return 0; 128 } 129 130 /* 131 * Read the capability-bits from the touchpad 132 * see also the SYN_CAP_* macros 133 */ 134 static int synaptics_capability(struct psmouse *psmouse) 135 { 136 struct synaptics_data *priv = psmouse->private; 137 unsigned char cap[3]; 138 139 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) 140 return -1; 141 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 142 priv->ext_cap = priv->ext_cap_0c = 0; 143 144 /* 145 * Older firmwares had submodel ID fixed to 0x47 146 */ 147 if (SYN_ID_FULL(priv->identity) < 0x705 && 148 SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { 149 return -1; 150 } 151 152 /* 153 * Unless capExtended is set the rest of the flags should be ignored 154 */ 155 if (!SYN_CAP_EXTENDED(priv->capabilities)) 156 priv->capabilities = 0; 157 158 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { 159 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { 160 printk(KERN_ERR "Synaptics claims to have extended capabilities," 161 " but I'm not able to read them.\n"); 162 } else { 163 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 164 165 /* 166 * if nExtBtn is greater than 8 it should be considered 167 * invalid and treated as 0 168 */ 169 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) 170 priv->ext_cap &= 0xff0fff; 171 } 172 } 173 174 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { 175 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { 176 printk(KERN_ERR "Synaptics claims to have extended capability 0x0c," 177 " but I'm not able to read it.\n"); 178 } else { 179 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 180 } 181 } 182 183 return 0; 184 } 185 186 /* 187 * Identify Touchpad 188 * See also the SYN_ID_* macros 189 */ 190 static int synaptics_identify(struct psmouse *psmouse) 191 { 192 struct synaptics_data *priv = psmouse->private; 193 unsigned char id[3]; 194 195 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) 196 return -1; 197 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; 198 if (SYN_ID_IS_SYNAPTICS(priv->identity)) 199 return 0; 200 return -1; 201 } 202 203 /* 204 * Read touchpad resolution and maximum reported coordinates 205 * Resolution is left zero if touchpad does not support the query 206 */ 207 static int synaptics_resolution(struct psmouse *psmouse) 208 { 209 struct synaptics_data *priv = psmouse->private; 210 unsigned char res[3]; 211 unsigned char max[3]; 212 213 if (SYN_ID_MAJOR(priv->identity) < 4) 214 return 0; 215 216 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res) == 0) { 217 if (res[0] != 0 && (res[1] & 0x80) && res[2] != 0) { 218 priv->x_res = res[0]; /* x resolution in units/mm */ 219 priv->y_res = res[2]; /* y resolution in units/mm */ 220 } 221 } 222 223 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && 224 SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { 225 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_DIMENSIONS, max)) { 226 printk(KERN_ERR "Synaptics claims to have dimensions query," 227 " but I'm not able to read it.\n"); 228 } else { 229 priv->x_max = (max[0] << 5) | ((max[1] & 0x0f) << 1); 230 priv->y_max = (max[2] << 5) | ((max[1] & 0xf0) >> 3); 231 } 232 } 233 234 return 0; 235 } 236 237 static int synaptics_query_hardware(struct psmouse *psmouse) 238 { 239 if (synaptics_identify(psmouse)) 240 return -1; 241 if (synaptics_model_id(psmouse)) 242 return -1; 243 if (synaptics_capability(psmouse)) 244 return -1; 245 if (synaptics_resolution(psmouse)) 246 return -1; 247 248 return 0; 249 } 250 251 static int synaptics_set_absolute_mode(struct psmouse *psmouse) 252 { 253 struct synaptics_data *priv = psmouse->private; 254 255 priv->mode = SYN_BIT_ABSOLUTE_MODE; 256 if (SYN_ID_MAJOR(priv->identity) >= 4) 257 priv->mode |= SYN_BIT_DISABLE_GESTURE; 258 if (SYN_CAP_EXTENDED(priv->capabilities)) 259 priv->mode |= SYN_BIT_W_MODE; 260 261 if (synaptics_mode_cmd(psmouse, priv->mode)) 262 return -1; 263 264 return 0; 265 } 266 267 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) 268 { 269 struct synaptics_data *priv = psmouse->private; 270 271 if (rate >= 80) { 272 priv->mode |= SYN_BIT_HIGH_RATE; 273 psmouse->rate = 80; 274 } else { 275 priv->mode &= ~SYN_BIT_HIGH_RATE; 276 psmouse->rate = 40; 277 } 278 279 synaptics_mode_cmd(psmouse, priv->mode); 280 } 281 282 /***************************************************************************** 283 * Synaptics pass-through PS/2 port support 284 ****************************************************************************/ 285 static int synaptics_pt_write(struct serio *serio, unsigned char c) 286 { 287 struct psmouse *parent = serio_get_drvdata(serio->parent); 288 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ 289 290 if (psmouse_sliced_command(parent, c)) 291 return -1; 292 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) 293 return -1; 294 return 0; 295 } 296 297 static inline int synaptics_is_pt_packet(unsigned char *buf) 298 { 299 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; 300 } 301 302 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) 303 { 304 struct psmouse *child = serio_get_drvdata(ptport); 305 306 if (child && child->state == PSMOUSE_ACTIVATED) { 307 serio_interrupt(ptport, packet[1], 0); 308 serio_interrupt(ptport, packet[4], 0); 309 serio_interrupt(ptport, packet[5], 0); 310 if (child->pktsize == 4) 311 serio_interrupt(ptport, packet[2], 0); 312 } else 313 serio_interrupt(ptport, packet[1], 0); 314 } 315 316 static void synaptics_pt_activate(struct psmouse *psmouse) 317 { 318 struct serio *ptport = psmouse->ps2dev.serio->child; 319 struct psmouse *child = serio_get_drvdata(ptport); 320 struct synaptics_data *priv = psmouse->private; 321 322 /* adjust the touchpad to child's choice of protocol */ 323 if (child) { 324 if (child->pktsize == 4) 325 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; 326 else 327 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; 328 329 if (synaptics_mode_cmd(psmouse, priv->mode)) 330 printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); 331 } 332 } 333 334 static void synaptics_pt_create(struct psmouse *psmouse) 335 { 336 struct serio *serio; 337 338 serio = kzalloc(sizeof(struct serio), GFP_KERNEL); 339 if (!serio) { 340 printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); 341 return; 342 } 343 344 serio->id.type = SERIO_PS_PSTHRU; 345 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); 346 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); 347 serio->write = synaptics_pt_write; 348 serio->parent = psmouse->ps2dev.serio; 349 350 psmouse->pt_activate = synaptics_pt_activate; 351 352 printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); 353 serio_register_port(serio); 354 } 355 356 /***************************************************************************** 357 * Functions to interpret the absolute mode packets 358 ****************************************************************************/ 359 360 static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) 361 { 362 memset(hw, 0, sizeof(struct synaptics_hw_state)); 363 364 if (SYN_MODEL_NEWABS(priv->model_id)) { 365 hw->x = (((buf[3] & 0x10) << 8) | 366 ((buf[1] & 0x0f) << 8) | 367 buf[4]); 368 hw->y = (((buf[3] & 0x20) << 7) | 369 ((buf[1] & 0xf0) << 4) | 370 buf[5]); 371 372 hw->z = buf[2]; 373 hw->w = (((buf[0] & 0x30) >> 2) | 374 ((buf[0] & 0x04) >> 1) | 375 ((buf[3] & 0x04) >> 2)); 376 377 hw->left = (buf[0] & 0x01) ? 1 : 0; 378 hw->right = (buf[0] & 0x02) ? 1 : 0; 379 380 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { 381 /* 382 * Clickpad's button is transmitted as middle button, 383 * however, since it is primary button, we will report 384 * it as BTN_LEFT. 385 */ 386 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 387 388 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 389 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 390 if (hw->w == 2) 391 hw->scroll = (signed char)(buf[1]); 392 } 393 394 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 395 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 396 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; 397 } 398 399 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && 400 ((buf[0] ^ buf[3]) & 0x02)) { 401 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { 402 default: 403 /* 404 * if nExtBtn is greater than 8 it should be 405 * considered invalid and treated as 0 406 */ 407 break; 408 case 8: 409 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; 410 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; 411 case 6: 412 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; 413 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; 414 case 4: 415 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; 416 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; 417 case 2: 418 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; 419 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; 420 } 421 } 422 } else { 423 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); 424 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); 425 426 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); 427 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); 428 429 hw->left = (buf[0] & 0x01) ? 1 : 0; 430 hw->right = (buf[0] & 0x02) ? 1 : 0; 431 } 432 } 433 434 /* 435 * called for each full received packet from the touchpad 436 */ 437 static void synaptics_process_packet(struct psmouse *psmouse) 438 { 439 struct input_dev *dev = psmouse->dev; 440 struct synaptics_data *priv = psmouse->private; 441 struct synaptics_hw_state hw; 442 int num_fingers; 443 int finger_width; 444 int i; 445 446 synaptics_parse_hw_state(psmouse->packet, priv, &hw); 447 448 if (hw.scroll) { 449 priv->scroll += hw.scroll; 450 451 while (priv->scroll >= 4) { 452 input_report_key(dev, BTN_BACK, !hw.down); 453 input_sync(dev); 454 input_report_key(dev, BTN_BACK, hw.down); 455 input_sync(dev); 456 priv->scroll -= 4; 457 } 458 while (priv->scroll <= -4) { 459 input_report_key(dev, BTN_FORWARD, !hw.up); 460 input_sync(dev); 461 input_report_key(dev, BTN_FORWARD, hw.up); 462 input_sync(dev); 463 priv->scroll += 4; 464 } 465 return; 466 } 467 468 if (hw.z > 0) { 469 num_fingers = 1; 470 finger_width = 5; 471 if (SYN_CAP_EXTENDED(priv->capabilities)) { 472 switch (hw.w) { 473 case 0 ... 1: 474 if (SYN_CAP_MULTIFINGER(priv->capabilities)) 475 num_fingers = hw.w + 2; 476 break; 477 case 2: 478 if (SYN_MODEL_PEN(priv->model_id)) 479 ; /* Nothing, treat a pen as a single finger */ 480 break; 481 case 4 ... 15: 482 if (SYN_CAP_PALMDETECT(priv->capabilities)) 483 finger_width = hw.w; 484 break; 485 } 486 } 487 } else { 488 num_fingers = 0; 489 finger_width = 0; 490 } 491 492 /* Post events 493 * BTN_TOUCH has to be first as mousedev relies on it when doing 494 * absolute -> relative conversion 495 */ 496 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); 497 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); 498 499 if (hw.z > 0) { 500 input_report_abs(dev, ABS_X, hw.x); 501 input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); 502 } 503 input_report_abs(dev, ABS_PRESSURE, hw.z); 504 505 if (SYN_CAP_PALMDETECT(priv->capabilities)) 506 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); 507 508 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); 509 input_report_key(dev, BTN_LEFT, hw.left); 510 input_report_key(dev, BTN_RIGHT, hw.right); 511 512 if (SYN_CAP_MULTIFINGER(priv->capabilities)) { 513 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); 514 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); 515 } 516 517 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 518 input_report_key(dev, BTN_MIDDLE, hw.middle); 519 520 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 521 input_report_key(dev, BTN_FORWARD, hw.up); 522 input_report_key(dev, BTN_BACK, hw.down); 523 } 524 525 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 526 input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); 527 528 input_sync(dev); 529 } 530 531 static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) 532 { 533 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; 534 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; 535 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; 536 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; 537 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; 538 539 if (idx < 0 || idx > 4) 540 return 0; 541 542 switch (pkt_type) { 543 544 case SYN_NEWABS: 545 case SYN_NEWABS_RELAXED: 546 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; 547 548 case SYN_NEWABS_STRICT: 549 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; 550 551 case SYN_OLDABS: 552 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; 553 554 default: 555 printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); 556 return 0; 557 } 558 } 559 560 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) 561 { 562 int i; 563 564 for (i = 0; i < 5; i++) 565 if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { 566 printk(KERN_INFO "synaptics: using relaxed packet validation\n"); 567 return SYN_NEWABS_RELAXED; 568 } 569 570 return SYN_NEWABS_STRICT; 571 } 572 573 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) 574 { 575 struct synaptics_data *priv = psmouse->private; 576 577 if (psmouse->pktcnt >= 6) { /* Full packet received */ 578 if (unlikely(priv->pkt_type == SYN_NEWABS)) 579 priv->pkt_type = synaptics_detect_pkt_type(psmouse); 580 581 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { 582 if (psmouse->ps2dev.serio->child) 583 synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); 584 } else 585 synaptics_process_packet(psmouse); 586 587 return PSMOUSE_FULL_PACKET; 588 } 589 590 return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? 591 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; 592 } 593 594 /***************************************************************************** 595 * Driver initialization/cleanup functions 596 ****************************************************************************/ 597 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) 598 { 599 int i; 600 601 __set_bit(EV_ABS, dev->evbit); 602 input_set_abs_params(dev, ABS_X, 603 XMIN_NOMINAL, priv->x_max ?: XMAX_NOMINAL, 0, 0); 604 input_set_abs_params(dev, ABS_Y, 605 YMIN_NOMINAL, priv->y_max ?: YMAX_NOMINAL, 0, 0); 606 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); 607 608 if (SYN_CAP_PALMDETECT(priv->capabilities)) 609 input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); 610 611 __set_bit(EV_KEY, dev->evbit); 612 __set_bit(BTN_TOUCH, dev->keybit); 613 __set_bit(BTN_TOOL_FINGER, dev->keybit); 614 __set_bit(BTN_LEFT, dev->keybit); 615 __set_bit(BTN_RIGHT, dev->keybit); 616 617 if (SYN_CAP_MULTIFINGER(priv->capabilities)) { 618 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); 619 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); 620 } 621 622 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 623 __set_bit(BTN_MIDDLE, dev->keybit); 624 625 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || 626 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 627 __set_bit(BTN_FORWARD, dev->keybit); 628 __set_bit(BTN_BACK, dev->keybit); 629 } 630 631 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 632 __set_bit(BTN_0 + i, dev->keybit); 633 634 __clear_bit(EV_REL, dev->evbit); 635 __clear_bit(REL_X, dev->relbit); 636 __clear_bit(REL_Y, dev->relbit); 637 638 input_abs_set_res(dev, ABS_X, priv->x_res); 639 input_abs_set_res(dev, ABS_Y, priv->y_res); 640 641 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { 642 /* Clickpads report only left button */ 643 __clear_bit(BTN_RIGHT, dev->keybit); 644 __clear_bit(BTN_MIDDLE, dev->keybit); 645 } 646 } 647 648 static void synaptics_disconnect(struct psmouse *psmouse) 649 { 650 synaptics_reset(psmouse); 651 kfree(psmouse->private); 652 psmouse->private = NULL; 653 } 654 655 static int synaptics_reconnect(struct psmouse *psmouse) 656 { 657 struct synaptics_data *priv = psmouse->private; 658 struct synaptics_data old_priv = *priv; 659 660 psmouse_reset(psmouse); 661 662 if (synaptics_detect(psmouse, 0)) 663 return -1; 664 665 if (synaptics_query_hardware(psmouse)) { 666 printk(KERN_ERR "Unable to query Synaptics hardware.\n"); 667 return -1; 668 } 669 670 if (old_priv.identity != priv->identity || 671 old_priv.model_id != priv->model_id || 672 old_priv.capabilities != priv->capabilities || 673 old_priv.ext_cap != priv->ext_cap) 674 return -1; 675 676 if (synaptics_set_absolute_mode(psmouse)) { 677 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); 678 return -1; 679 } 680 681 return 0; 682 } 683 684 static bool impaired_toshiba_kbc; 685 686 static const struct dmi_system_id __initconst toshiba_dmi_table[] = { 687 #if defined(CONFIG_DMI) && defined(CONFIG_X86) 688 { 689 /* Toshiba Satellite */ 690 .matches = { 691 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 692 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), 693 }, 694 }, 695 { 696 /* Toshiba Dynabook */ 697 .matches = { 698 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 699 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), 700 }, 701 }, 702 { 703 /* Toshiba Portege M300 */ 704 .matches = { 705 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 706 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), 707 }, 708 709 }, 710 { 711 /* Toshiba Portege M300 */ 712 .matches = { 713 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 714 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), 715 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), 716 }, 717 718 }, 719 { } 720 #endif 721 }; 722 723 void __init synaptics_module_init(void) 724 { 725 impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); 726 } 727 728 int synaptics_init(struct psmouse *psmouse) 729 { 730 struct synaptics_data *priv; 731 732 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); 733 if (!priv) 734 return -1; 735 736 psmouse_reset(psmouse); 737 738 if (synaptics_query_hardware(psmouse)) { 739 printk(KERN_ERR "Unable to query Synaptics hardware.\n"); 740 goto init_fail; 741 } 742 743 if (synaptics_set_absolute_mode(psmouse)) { 744 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); 745 goto init_fail; 746 } 747 748 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; 749 750 printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n", 751 SYN_ID_MODEL(priv->identity), 752 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), 753 priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c); 754 755 set_input_params(psmouse->dev, priv); 756 757 /* 758 * Encode touchpad model so that it can be used to set 759 * input device->id.version and be visible to userspace. 760 * Because version is __u16 we have to drop something. 761 * Hardware info bits seem to be good candidates as they 762 * are documented to be for Synaptics corp. internal use. 763 */ 764 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | 765 (priv->model_id & 0x000000ff); 766 767 psmouse->protocol_handler = synaptics_process_byte; 768 psmouse->set_rate = synaptics_set_rate; 769 psmouse->disconnect = synaptics_disconnect; 770 psmouse->reconnect = synaptics_reconnect; 771 psmouse->cleanup = synaptics_reset; 772 psmouse->pktsize = 6; 773 /* Synaptics can usually stay in sync without extra help */ 774 psmouse->resync_time = 0; 775 776 if (SYN_CAP_PASS_THROUGH(priv->capabilities)) 777 synaptics_pt_create(psmouse); 778 779 /* 780 * Toshiba's KBC seems to have trouble handling data from 781 * Synaptics as full rate, switch to lower rate which is roughly 782 * thye same as rate of standard PS/2 mouse. 783 */ 784 if (psmouse->rate >= 80 && impaired_toshiba_kbc) { 785 printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", 786 dmi_get_system_info(DMI_PRODUCT_NAME)); 787 psmouse->rate = 40; 788 } 789 790 return 0; 791 792 init_fail: 793 kfree(priv); 794 return -1; 795 } 796 797 bool synaptics_supported(void) 798 { 799 return true; 800 } 801 802 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ 803 804 void __init synaptics_module_init(void) 805 { 806 } 807 808 int synaptics_init(struct psmouse *psmouse) 809 { 810 return -ENOSYS; 811 } 812 813 bool synaptics_supported(void) 814 { 815 return false; 816 } 817 818 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ 819 820