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 if (synaptics_identify(psmouse)) 186 return -1; 187 if (synaptics_model_id(psmouse)) 188 return -1; 189 if (synaptics_capability(psmouse)) 190 return -1; 191 192 return 0; 193 } 194 195 static int synaptics_set_absolute_mode(struct psmouse *psmouse) 196 { 197 struct synaptics_data *priv = psmouse->private; 198 199 priv->mode = SYN_BIT_ABSOLUTE_MODE; 200 if (SYN_ID_MAJOR(priv->identity) >= 4) 201 priv->mode |= SYN_BIT_DISABLE_GESTURE; 202 if (SYN_CAP_EXTENDED(priv->capabilities)) 203 priv->mode |= SYN_BIT_W_MODE; 204 205 if (synaptics_mode_cmd(psmouse, priv->mode)) 206 return -1; 207 208 return 0; 209 } 210 211 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) 212 { 213 struct synaptics_data *priv = psmouse->private; 214 215 if (rate >= 80) { 216 priv->mode |= SYN_BIT_HIGH_RATE; 217 psmouse->rate = 80; 218 } else { 219 priv->mode &= ~SYN_BIT_HIGH_RATE; 220 psmouse->rate = 40; 221 } 222 223 synaptics_mode_cmd(psmouse, priv->mode); 224 } 225 226 /***************************************************************************** 227 * Synaptics pass-through PS/2 port support 228 ****************************************************************************/ 229 static int synaptics_pt_write(struct serio *serio, unsigned char c) 230 { 231 struct psmouse *parent = serio_get_drvdata(serio->parent); 232 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ 233 234 if (psmouse_sliced_command(parent, c)) 235 return -1; 236 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) 237 return -1; 238 return 0; 239 } 240 241 static inline int synaptics_is_pt_packet(unsigned char *buf) 242 { 243 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; 244 } 245 246 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) 247 { 248 struct psmouse *child = serio_get_drvdata(ptport); 249 250 if (child && child->state == PSMOUSE_ACTIVATED) { 251 serio_interrupt(ptport, packet[1], 0); 252 serio_interrupt(ptport, packet[4], 0); 253 serio_interrupt(ptport, packet[5], 0); 254 if (child->pktsize == 4) 255 serio_interrupt(ptport, packet[2], 0); 256 } else 257 serio_interrupt(ptport, packet[1], 0); 258 } 259 260 static void synaptics_pt_activate(struct psmouse *psmouse) 261 { 262 struct serio *ptport = psmouse->ps2dev.serio->child; 263 struct psmouse *child = serio_get_drvdata(ptport); 264 struct synaptics_data *priv = psmouse->private; 265 266 /* adjust the touchpad to child's choice of protocol */ 267 if (child) { 268 if (child->pktsize == 4) 269 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; 270 else 271 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; 272 273 if (synaptics_mode_cmd(psmouse, priv->mode)) 274 printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); 275 } 276 } 277 278 static void synaptics_pt_create(struct psmouse *psmouse) 279 { 280 struct serio *serio; 281 282 serio = kzalloc(sizeof(struct serio), GFP_KERNEL); 283 if (!serio) { 284 printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); 285 return; 286 } 287 288 serio->id.type = SERIO_PS_PSTHRU; 289 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); 290 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); 291 serio->write = synaptics_pt_write; 292 serio->parent = psmouse->ps2dev.serio; 293 294 psmouse->pt_activate = synaptics_pt_activate; 295 296 printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); 297 serio_register_port(serio); 298 } 299 300 /***************************************************************************** 301 * Functions to interpret the absolute mode packets 302 ****************************************************************************/ 303 304 static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) 305 { 306 memset(hw, 0, sizeof(struct synaptics_hw_state)); 307 308 if (SYN_MODEL_NEWABS(priv->model_id)) { 309 hw->x = (((buf[3] & 0x10) << 8) | 310 ((buf[1] & 0x0f) << 8) | 311 buf[4]); 312 hw->y = (((buf[3] & 0x20) << 7) | 313 ((buf[1] & 0xf0) << 4) | 314 buf[5]); 315 316 hw->z = buf[2]; 317 hw->w = (((buf[0] & 0x30) >> 2) | 318 ((buf[0] & 0x04) >> 1) | 319 ((buf[3] & 0x04) >> 2)); 320 321 hw->left = (buf[0] & 0x01) ? 1 : 0; 322 hw->right = (buf[0] & 0x02) ? 1 : 0; 323 324 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 325 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 326 if (hw->w == 2) 327 hw->scroll = (signed char)(buf[1]); 328 } 329 330 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 331 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; 332 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; 333 } 334 335 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && 336 ((buf[0] ^ buf[3]) & 0x02)) { 337 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { 338 default: 339 /* 340 * if nExtBtn is greater than 8 it should be 341 * considered invalid and treated as 0 342 */ 343 break; 344 case 8: 345 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; 346 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; 347 case 6: 348 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; 349 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; 350 case 4: 351 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; 352 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; 353 case 2: 354 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; 355 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; 356 } 357 } 358 } else { 359 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); 360 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); 361 362 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); 363 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); 364 365 hw->left = (buf[0] & 0x01) ? 1 : 0; 366 hw->right = (buf[0] & 0x02) ? 1 : 0; 367 } 368 } 369 370 /* 371 * called for each full received packet from the touchpad 372 */ 373 static void synaptics_process_packet(struct psmouse *psmouse) 374 { 375 struct input_dev *dev = psmouse->dev; 376 struct synaptics_data *priv = psmouse->private; 377 struct synaptics_hw_state hw; 378 int num_fingers; 379 int finger_width; 380 int i; 381 382 synaptics_parse_hw_state(psmouse->packet, priv, &hw); 383 384 if (hw.scroll) { 385 priv->scroll += hw.scroll; 386 387 while (priv->scroll >= 4) { 388 input_report_key(dev, BTN_BACK, !hw.down); 389 input_sync(dev); 390 input_report_key(dev, BTN_BACK, hw.down); 391 input_sync(dev); 392 priv->scroll -= 4; 393 } 394 while (priv->scroll <= -4) { 395 input_report_key(dev, BTN_FORWARD, !hw.up); 396 input_sync(dev); 397 input_report_key(dev, BTN_FORWARD, hw.up); 398 input_sync(dev); 399 priv->scroll += 4; 400 } 401 return; 402 } 403 404 if (hw.z > 0) { 405 num_fingers = 1; 406 finger_width = 5; 407 if (SYN_CAP_EXTENDED(priv->capabilities)) { 408 switch (hw.w) { 409 case 0 ... 1: 410 if (SYN_CAP_MULTIFINGER(priv->capabilities)) 411 num_fingers = hw.w + 2; 412 break; 413 case 2: 414 if (SYN_MODEL_PEN(priv->model_id)) 415 ; /* Nothing, treat a pen as a single finger */ 416 break; 417 case 4 ... 15: 418 if (SYN_CAP_PALMDETECT(priv->capabilities)) 419 finger_width = hw.w; 420 break; 421 } 422 } 423 } else { 424 num_fingers = 0; 425 finger_width = 0; 426 } 427 428 /* Post events 429 * BTN_TOUCH has to be first as mousedev relies on it when doing 430 * absolute -> relative conversion 431 */ 432 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); 433 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); 434 435 if (hw.z > 0) { 436 input_report_abs(dev, ABS_X, hw.x); 437 input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); 438 } 439 input_report_abs(dev, ABS_PRESSURE, hw.z); 440 441 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); 442 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); 443 input_report_key(dev, BTN_LEFT, hw.left); 444 input_report_key(dev, BTN_RIGHT, hw.right); 445 446 if (SYN_CAP_MULTIFINGER(priv->capabilities)) { 447 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); 448 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); 449 } 450 451 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 452 input_report_key(dev, BTN_MIDDLE, hw.middle); 453 454 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { 455 input_report_key(dev, BTN_FORWARD, hw.up); 456 input_report_key(dev, BTN_BACK, hw.down); 457 } 458 459 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 460 input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); 461 462 input_sync(dev); 463 } 464 465 static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) 466 { 467 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; 468 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; 469 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; 470 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; 471 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; 472 473 if (idx < 0 || idx > 4) 474 return 0; 475 476 switch (pkt_type) { 477 case SYN_NEWABS: 478 case SYN_NEWABS_RELAXED: 479 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; 480 481 case SYN_NEWABS_STRICT: 482 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; 483 484 case SYN_OLDABS: 485 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; 486 487 default: 488 printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); 489 return 0; 490 } 491 } 492 493 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) 494 { 495 int i; 496 497 for (i = 0; i < 5; i++) 498 if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { 499 printk(KERN_INFO "synaptics: using relaxed packet validation\n"); 500 return SYN_NEWABS_RELAXED; 501 } 502 503 return SYN_NEWABS_STRICT; 504 } 505 506 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) 507 { 508 struct synaptics_data *priv = psmouse->private; 509 510 if (psmouse->pktcnt >= 6) { /* Full packet received */ 511 if (unlikely(priv->pkt_type == SYN_NEWABS)) 512 priv->pkt_type = synaptics_detect_pkt_type(psmouse); 513 514 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { 515 if (psmouse->ps2dev.serio->child) 516 synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); 517 } else 518 synaptics_process_packet(psmouse); 519 520 return PSMOUSE_FULL_PACKET; 521 } 522 523 return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? 524 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; 525 } 526 527 /***************************************************************************** 528 * Driver initialization/cleanup functions 529 ****************************************************************************/ 530 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) 531 { 532 int i; 533 534 set_bit(EV_ABS, dev->evbit); 535 input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0); 536 input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0); 537 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); 538 set_bit(ABS_TOOL_WIDTH, dev->absbit); 539 540 set_bit(EV_KEY, dev->evbit); 541 set_bit(BTN_TOUCH, dev->keybit); 542 set_bit(BTN_TOOL_FINGER, dev->keybit); 543 set_bit(BTN_LEFT, dev->keybit); 544 set_bit(BTN_RIGHT, dev->keybit); 545 546 if (SYN_CAP_MULTIFINGER(priv->capabilities)) { 547 set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); 548 set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); 549 } 550 551 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) 552 set_bit(BTN_MIDDLE, dev->keybit); 553 554 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || 555 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { 556 set_bit(BTN_FORWARD, dev->keybit); 557 set_bit(BTN_BACK, dev->keybit); 558 } 559 560 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) 561 set_bit(BTN_0 + i, dev->keybit); 562 563 clear_bit(EV_REL, dev->evbit); 564 clear_bit(REL_X, dev->relbit); 565 clear_bit(REL_Y, dev->relbit); 566 } 567 568 static void synaptics_disconnect(struct psmouse *psmouse) 569 { 570 synaptics_reset(psmouse); 571 kfree(psmouse->private); 572 psmouse->private = NULL; 573 } 574 575 static int synaptics_reconnect(struct psmouse *psmouse) 576 { 577 struct synaptics_data *priv = psmouse->private; 578 struct synaptics_data old_priv = *priv; 579 580 psmouse_reset(psmouse); 581 582 if (synaptics_detect(psmouse, 0)) 583 return -1; 584 585 if (synaptics_query_hardware(psmouse)) { 586 printk(KERN_ERR "Unable to query Synaptics hardware.\n"); 587 return -1; 588 } 589 590 if (old_priv.identity != priv->identity || 591 old_priv.model_id != priv->model_id || 592 old_priv.capabilities != priv->capabilities || 593 old_priv.ext_cap != priv->ext_cap) 594 return -1; 595 596 if (synaptics_set_absolute_mode(psmouse)) { 597 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); 598 return -1; 599 } 600 601 return 0; 602 } 603 604 #if defined(__i386__) 605 #include <linux/dmi.h> 606 static const struct dmi_system_id toshiba_dmi_table[] = { 607 { 608 .ident = "Toshiba Satellite", 609 .matches = { 610 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 611 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), 612 }, 613 }, 614 { 615 .ident = "Toshiba Dynabook", 616 .matches = { 617 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 618 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), 619 }, 620 }, 621 { 622 .ident = "Toshiba Portege M300", 623 .matches = { 624 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), 625 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), 626 }, 627 }, 628 { } 629 }; 630 #endif 631 632 int synaptics_init(struct psmouse *psmouse) 633 { 634 struct synaptics_data *priv; 635 636 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); 637 if (!priv) 638 return -1; 639 640 psmouse_reset(psmouse); 641 642 if (synaptics_query_hardware(psmouse)) { 643 printk(KERN_ERR "Unable to query Synaptics hardware.\n"); 644 goto init_fail; 645 } 646 647 if (synaptics_set_absolute_mode(psmouse)) { 648 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); 649 goto init_fail; 650 } 651 652 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; 653 654 printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n", 655 SYN_ID_MODEL(priv->identity), 656 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), 657 priv->model_id, priv->capabilities, priv->ext_cap); 658 659 set_input_params(psmouse->dev, priv); 660 661 /* 662 * Encode touchpad model so that it can be used to set 663 * input device->id.version and be visible to userspace. 664 * Because version is __u16 we have to drop something. 665 * Hardware info bits seem to be good candidates as they 666 * are documented to be for Synaptics corp. internal use. 667 */ 668 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | 669 (priv->model_id & 0x000000ff); 670 671 psmouse->protocol_handler = synaptics_process_byte; 672 psmouse->set_rate = synaptics_set_rate; 673 psmouse->disconnect = synaptics_disconnect; 674 psmouse->reconnect = synaptics_reconnect; 675 psmouse->cleanup = synaptics_reset; 676 psmouse->pktsize = 6; 677 /* Synaptics can usually stay in sync without extra help */ 678 psmouse->resync_time = 0; 679 680 if (SYN_CAP_PASS_THROUGH(priv->capabilities)) 681 synaptics_pt_create(psmouse); 682 683 #if defined(__i386__) 684 /* 685 * Toshiba's KBC seems to have trouble handling data from 686 * Synaptics as full rate, switch to lower rate which is roughly 687 * thye same as rate of standard PS/2 mouse. 688 */ 689 if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) { 690 printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", 691 dmi_get_system_info(DMI_PRODUCT_NAME)); 692 psmouse->rate = 40; 693 } 694 #endif 695 696 return 0; 697 698 init_fail: 699 kfree(priv); 700 return -1; 701 } 702 703 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ 704 705 int synaptics_init(struct psmouse *psmouse) 706 { 707 return -ENOSYS; 708 } 709 710 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ 711 712