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