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/input.h> 28 #include <linux/serio.h> 29 #include <linux/libps2.h> 30 #include "psmouse.h" 31 #include "synaptics.h" 32 33 /* 34 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, 35 * section 2.3.2, which says that they should be valid regardless of the 36 * actual size of the sensor. 37 */ 38 #define XMIN_NOMINAL 1472 39 #define XMAX_NOMINAL 5472 40 #define YMIN_NOMINAL 1408 41 #define YMAX_NOMINAL 4448 42 43 44 /***************************************************************************** 45 * Stuff we need even when we do not want native Synaptics support 46 ****************************************************************************/ 47 48 /* 49 * Set the synaptics touchpad mode byte by special commands 50 */ 51 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) 52 { 53 unsigned char param[1]; 54 55 if (psmouse_sliced_command(psmouse, mode)) 56 return -1; 57 param[0] = SYN_PS_SET_MODE2; 58 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) 59 return -1; 60 return 0; 61 } 62 63 int synaptics_detect(struct psmouse *psmouse, int set_properties) 64 { 65 struct ps2dev *ps2dev = &psmouse->ps2dev; 66 unsigned char param[4]; 67 68 param[0] = 0; 69 70 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 71 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 72 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 73 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); 74 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); 75 76 if (param[1] != 0x47) 77 return -ENODEV; 78 79 if (set_properties) { 80 psmouse->vendor = "Synaptics"; 81 psmouse->name = "TouchPad"; 82 } 83 84 return 0; 85 } 86 87 void synaptics_reset(struct psmouse *psmouse) 88 { 89 /* reset touchpad back to relative mode, gestures enabled */ 90 synaptics_mode_cmd(psmouse, 0); 91 } 92 93 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS 94 95 /***************************************************************************** 96 * Synaptics communications functions 97 ****************************************************************************/ 98 99 /* 100 * Send a command to the synpatics touchpad by special commands 101 */ 102 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) 103 { 104 if (psmouse_sliced_command(psmouse, c)) 105 return -1; 106 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) 107 return -1; 108 return 0; 109 } 110 111 /* 112 * Read the model-id bytes from the touchpad 113 * see also SYN_MODEL_* macros 114 */ 115 static int synaptics_model_id(struct psmouse *psmouse) 116 { 117 struct synaptics_data *priv = psmouse->private; 118 unsigned char mi[3]; 119 120 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) 121 return -1; 122 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; 123 return 0; 124 } 125 126 /* 127 * Read the capability-bits from the touchpad 128 * see also the SYN_CAP_* macros 129 */ 130 static int synaptics_capability(struct psmouse *psmouse) 131 { 132 struct synaptics_data *priv = psmouse->private; 133 unsigned char cap[3]; 134 135 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) 136 return -1; 137 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 138 priv->ext_cap = 0; 139 if (!SYN_CAP_VALID(priv->capabilities)) 140 return -1; 141 142 /* 143 * Unless capExtended is set the rest of the flags should be ignored 144 */ 145 if (!SYN_CAP_EXTENDED(priv->capabilities)) 146 priv->capabilities = 0; 147 148 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { 149 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { 150 printk(KERN_ERR "Synaptics claims to have extended capabilities," 151 " but I'm not able to read them."); 152 } else { 153 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; 154 155 /* 156 * if nExtBtn is greater than 8 it should be considered 157 * invalid and treated as 0 158 */ 159 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) 160 priv->ext_cap &= 0xff0fff; 161 } 162 } 163 return 0; 164 } 165 166 /* 167 * Identify Touchpad 168 * See also the SYN_ID_* macros 169 */ 170 static int synaptics_identify(struct psmouse *psmouse) 171 { 172 struct synaptics_data *priv = psmouse->private; 173 unsigned char id[3]; 174 175 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) 176 return -1; 177 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; 178 if (SYN_ID_IS_SYNAPTICS(priv->identity)) 179 return 0; 180 return -1; 181 } 182 183 static int synaptics_query_hardware(struct psmouse *psmouse) 184 { 185 int retries = 0; 186 187 while ((retries++ < 3) && psmouse_reset(psmouse)) 188 /* empty */; 189 190 if (synaptics_identify(psmouse)) 191 return -1; 192 if (synaptics_model_id(psmouse)) 193 return -1; 194 if (synaptics_capability(psmouse)) 195 return -1; 196 197 return 0; 198 } 199 200 static int synaptics_set_absolute_mode(struct psmouse *psmouse) 201 { 202 struct synaptics_data *priv = psmouse->private; 203 204 priv->mode = SYN_BIT_ABSOLUTE_MODE; 205 if (SYN_ID_MAJOR(priv->identity) >= 4) 206 priv->mode |= SYN_BIT_DISABLE_GESTURE; 207 if (SYN_CAP_EXTENDED(priv->capabilities)) 208 priv->mode |= SYN_BIT_W_MODE; 209 210 if (synaptics_mode_cmd(psmouse, priv->mode)) 211 return -1; 212 213 return 0; 214 } 215 216 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) 217 { 218 struct synaptics_data *priv = psmouse->private; 219 220 if (rate >= 80) { 221 priv->mode |= SYN_BIT_HIGH_RATE; 222 psmouse->rate = 80; 223 } else { 224 priv->mode &= ~SYN_BIT_HIGH_RATE; 225 psmouse->rate = 40; 226 } 227 228 synaptics_mode_cmd(psmouse, priv->mode); 229 } 230 231 /***************************************************************************** 232 * Synaptics pass-through PS/2 port support 233 ****************************************************************************/ 234 static int synaptics_pt_write(struct serio *serio, unsigned char c) 235 { 236 struct psmouse *parent = serio_get_drvdata(serio->parent); 237 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ 238 239 if (psmouse_sliced_command(parent, c)) 240 return -1; 241 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) 242 return -1; 243 return 0; 244 } 245 246 static inline int synaptics_is_pt_packet(unsigned char *buf) 247 { 248 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; 249 } 250 251 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) 252 { 253 struct psmouse *child = serio_get_drvdata(ptport); 254 255 if (child && child->state == PSMOUSE_ACTIVATED) { 256 serio_interrupt(ptport, packet[1], 0); 257 serio_interrupt(ptport, packet[4], 0); 258 serio_interrupt(ptport, packet[5], 0); 259 if (child->pktsize == 4) 260 serio_interrupt(ptport, packet[2], 0); 261 } else 262 serio_interrupt(ptport, packet[1], 0); 263 } 264 265 static void synaptics_pt_activate(struct psmouse *psmouse) 266 { 267 struct serio *ptport = psmouse->ps2dev.serio->child; 268 struct psmouse *child = serio_get_drvdata(ptport); 269 struct synaptics_data *priv = psmouse->private; 270 271 /* adjust the touchpad to child's choice of protocol */ 272 if (child) { 273 if (child->pktsize == 4) 274 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; 275 else 276 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; 277 278 if (synaptics_mode_cmd(psmouse, priv->mode)) 279 printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); 280 } 281 } 282 283 static void synaptics_pt_create(struct psmouse *psmouse) 284 { 285 struct serio *serio; 286 287 serio = kzalloc(sizeof(struct serio), GFP_KERNEL); 288 if (!serio) { 289 printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); 290 return; 291 } 292 293 serio->id.type = SERIO_PS_PSTHRU; 294 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); 295 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); 296 serio->write = synaptics_pt_write; 297 serio->parent = psmouse->ps2dev.serio; 298 299 psmouse->pt_activate = synaptics_pt_activate; 300 301 printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); 302 serio_register_port(serio); 303 } 304 305 /***************************************************************************** 306 * Functions to interpret the absolute mode packets 307 ****************************************************************************/ 308 309 static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) 310 { 311 memset(hw, 0, sizeof(struct synaptics_hw_state)); 312 313 if (SYN_MODEL_NEWABS(priv->model_id)) { 314 hw->x = (((buf[3] & 0x10) << 8) | 315 ((buf[1] & 0x0f) << 8) | 316 buf[4]); 317 hw->y = (((buf[3] & 0x20) << 7) | 318 ((buf[1] & 0xf0) << 4) | 319 buf[5]); 320 321 hw->z = buf[2]; 322 hw->w = (((buf[0] & 0x30) >> 2) | 323 ((buf[0] & 0x04) >> 1) | 324 ((buf[3] & 0x04) >> 2)); 325 326 hw->left = (buf[0] & 0x01) ? 1 : 0; 327 hw->right = (buf[0] & 0x02) ? 1 : 0; 328 329 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 330 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 331 if (hw->w == 2) 332 hw->scroll = (signed char)(buf[1]); 333 } 334 335 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 336 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 337 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; 338 } 339 340 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && 341 ((buf[0] ^ buf[3]) & 0x02)) { 342 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { 343 default: 344 /* 345 * if nExtBtn is greater than 8 it should be 346 * considered invalid and treated as 0 347 */ 348 break; 349 case 8: 350 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; 351 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; 352 case 6: 353 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; 354 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; 355 case 4: 356 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; 357 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; 358 case 2: 359 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; 360 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; 361 } 362 } 363 } else { 364 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); 365 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); 366 367 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); 368 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); 369 370 hw->left = (buf[0] & 0x01) ? 1 : 0; 371 hw->right = (buf[0] & 0x02) ? 1 : 0; 372 } 373 } 374 375 /* 376 * called for each full received packet from the touchpad 377 */ 378 static void synaptics_process_packet(struct psmouse *psmouse) 379 { 380 struct input_dev *dev = psmouse->dev; 381 struct synaptics_data *priv = psmouse->private; 382 struct synaptics_hw_state hw; 383 int num_fingers; 384 int finger_width; 385 int i; 386 387 synaptics_parse_hw_state(psmouse->packet, priv, &hw); 388 389 if (hw.scroll) { 390 priv->scroll += hw.scroll; 391 392 while (priv->scroll >= 4) { 393 input_report_key(dev, BTN_BACK, !hw.down); 394 input_sync(dev); 395 input_report_key(dev, BTN_BACK, hw.down); 396 input_sync(dev); 397 priv->scroll -= 4; 398 } 399 while (priv->scroll <= -4) { 400 input_report_key(dev, BTN_FORWARD, !hw.up); 401 input_sync(dev); 402 input_report_key(dev, BTN_FORWARD, hw.up); 403 input_sync(dev); 404 priv->scroll += 4; 405 } 406 return; 407 } 408 409 if (hw.z > 0) { 410 num_fingers = 1; 411 finger_width = 5; 412 if (SYN_CAP_EXTENDED(priv->capabilities)) { 413 switch (hw.w) { 414 case 0 ... 1: 415 if (SYN_CAP_MULTIFINGER(priv->capabilities)) 416 num_fingers = hw.w + 2; 417 break; 418 case 2: 419 if (SYN_MODEL_PEN(priv->model_id)) 420 ; /* Nothing, treat a pen as a single finger */ 421 break; 422 case 4 ... 15: 423 if (SYN_CAP_PALMDETECT(priv->capabilities)) 424 finger_width = hw.w; 425 break; 426 } 427 } 428 } else { 429 num_fingers = 0; 430 finger_width = 0; 431 } 432 433 /* Post events 434 * BTN_TOUCH has to be first as mousedev relies on it when doing 435 * absolute -> relative conversion 436 */ 437 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); 438 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); 439 440 if (hw.z > 0) { 441 input_report_abs(dev, ABS_X, hw.x); 442 input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); 443 } 444 input_report_abs(dev, ABS_PRESSURE, hw.z); 445 446 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); 447 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); 448 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); 449 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); 450 451 input_report_key(dev, BTN_LEFT, hw.left); 452 input_report_key(dev, BTN_RIGHT, hw.right); 453 454 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 455 input_report_key(dev, BTN_MIDDLE, hw.middle); 456 457 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 458 input_report_key(dev, BTN_FORWARD, hw.up); 459 input_report_key(dev, BTN_BACK, hw.down); 460 } 461 462 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 463 input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); 464 465 input_sync(dev); 466 } 467 468 static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) 469 { 470 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; 471 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; 472 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; 473 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; 474 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; 475 476 if (idx < 0 || idx > 4) 477 return 0; 478 479 switch (pkt_type) { 480 case SYN_NEWABS: 481 case SYN_NEWABS_RELAXED: 482 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; 483 484 case SYN_NEWABS_STRICT: 485 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; 486 487 case SYN_OLDABS: 488 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; 489 490 default: 491 printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); 492 return 0; 493 } 494 } 495 496 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) 497 { 498 int i; 499 500 for (i = 0; i < 5; i++) 501 if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { 502 printk(KERN_INFO "synaptics: using relaxed packet validation\n"); 503 return SYN_NEWABS_RELAXED; 504 } 505 506 return SYN_NEWABS_STRICT; 507 } 508 509 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) 510 { 511 struct synaptics_data *priv = psmouse->private; 512 513 if (psmouse->pktcnt >= 6) { /* Full packet received */ 514 if (unlikely(priv->pkt_type == SYN_NEWABS)) 515 priv->pkt_type = synaptics_detect_pkt_type(psmouse); 516 517 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { 518 if (psmouse->ps2dev.serio->child) 519 synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); 520 } else 521 synaptics_process_packet(psmouse); 522 523 return PSMOUSE_FULL_PACKET; 524 } 525 526 return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? 527 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; 528 } 529 530 /***************************************************************************** 531 * Driver initialization/cleanup functions 532 ****************************************************************************/ 533 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) 534 { 535 int i; 536 537 set_bit(EV_ABS, dev->evbit); 538 input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0); 539 input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0); 540 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); 541 set_bit(ABS_TOOL_WIDTH, dev->absbit); 542 543 set_bit(EV_KEY, dev->evbit); 544 set_bit(BTN_TOUCH, dev->keybit); 545 set_bit(BTN_TOOL_FINGER, dev->keybit); 546 set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); 547 set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); 548 549 set_bit(BTN_LEFT, dev->keybit); 550 set_bit(BTN_RIGHT, dev->keybit); 551 552 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 553 set_bit(BTN_MIDDLE, dev->keybit); 554 555 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || 556 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 557 set_bit(BTN_FORWARD, dev->keybit); 558 set_bit(BTN_BACK, dev->keybit); 559 } 560 561 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 562 set_bit(BTN_0 + i, dev->keybit); 563 564 clear_bit(EV_REL, dev->evbit); 565 clear_bit(REL_X, dev->relbit); 566 clear_bit(REL_Y, dev->relbit); 567 } 568 569 static void synaptics_disconnect(struct psmouse *psmouse) 570 { 571 synaptics_reset(psmouse); 572 kfree(psmouse->private); 573 psmouse->private = NULL; 574 } 575 576 static int synaptics_reconnect(struct psmouse *psmouse) 577 { 578 struct synaptics_data *priv = psmouse->private; 579 struct synaptics_data old_priv = *priv; 580 581 if (synaptics_detect(psmouse, 0)) 582 return -1; 583 584 if (synaptics_query_hardware(psmouse)) { 585 printk(KERN_ERR "Unable to query Synaptics hardware.\n"); 586 return -1; 587 } 588 589 if (old_priv.identity != priv->identity || 590 old_priv.model_id != priv->model_id || 591 old_priv.capabilities != priv->capabilities || 592 old_priv.ext_cap != priv->ext_cap) 593 return -1; 594 595 if (synaptics_set_absolute_mode(psmouse)) { 596 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); 597 return -1; 598 } 599 600 return 0; 601 } 602 603 #if defined(__i386__) 604 #include <linux/dmi.h> 605 static const struct dmi_system_id toshiba_dmi_table[] = { 606 { 607 .ident = "Toshiba Satellite", 608 .matches = { 609 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 610 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), 611 }, 612 }, 613 { 614 .ident = "Toshiba Dynabook", 615 .matches = { 616 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 617 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), 618 }, 619 }, 620 { 621 .ident = "Toshiba Portege M300", 622 .matches = { 623 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 624 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), 625 }, 626 }, 627 { } 628 }; 629 #endif 630 631 int synaptics_init(struct psmouse *psmouse) 632 { 633 struct synaptics_data *priv; 634 635 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); 636 if (!priv) 637 return -1; 638 639 if (synaptics_query_hardware(psmouse)) { 640 printk(KERN_ERR "Unable to query Synaptics hardware.\n"); 641 goto init_fail; 642 } 643 644 if (synaptics_set_absolute_mode(psmouse)) { 645 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); 646 goto init_fail; 647 } 648 649 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; 650 651 printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n", 652 SYN_ID_MODEL(priv->identity), 653 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), 654 priv->model_id, priv->capabilities, priv->ext_cap); 655 656 set_input_params(psmouse->dev, priv); 657 658 /* 659 * Encode touchpad model so that it can be used to set 660 * input device->id.version and be visible to userspace. 661 * Because version is __u16 we have to drop something. 662 * Hardware info bits seem to be good candidates as they 663 * are documented to be for Synaptics corp. internal use. 664 */ 665 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | 666 (priv->model_id & 0x000000ff); 667 668 psmouse->protocol_handler = synaptics_process_byte; 669 psmouse->set_rate = synaptics_set_rate; 670 psmouse->disconnect = synaptics_disconnect; 671 psmouse->reconnect = synaptics_reconnect; 672 psmouse->cleanup = synaptics_reset; 673 psmouse->pktsize = 6; 674 /* Synaptics can usually stay in sync without extra help */ 675 psmouse->resync_time = 0; 676 677 if (SYN_CAP_PASS_THROUGH(priv->capabilities)) 678 synaptics_pt_create(psmouse); 679 680 #if defined(__i386__) 681 /* 682 * Toshiba's KBC seems to have trouble handling data from 683 * Synaptics as full rate, switch to lower rate which is roughly 684 * thye same as rate of standard PS/2 mouse. 685 */ 686 if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) { 687 printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", 688 dmi_get_system_info(DMI_PRODUCT_NAME)); 689 psmouse->rate = 40; 690 } 691 #endif 692 693 return 0; 694 695 init_fail: 696 kfree(priv); 697 return -1; 698 } 699 700 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ 701 702 int synaptics_init(struct psmouse *psmouse) 703 { 704 return -ENOSYS; 705 } 706 707 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ 708 709