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