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