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