1 /* 2 * ALPS touchpad PS/2 mouse driver 3 * 4 * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> 5 * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com> 6 * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> 7 * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> 8 * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net> 9 * 10 * ALPS detection, tap switching and status querying info is taken from 11 * tpconfig utility (by C. Scott Ananian and Bruce Kall). 12 * 13 * This program is free software; you can redistribute it and/or modify it 14 * under the terms of the GNU General Public License version 2 as published by 15 * the Free Software Foundation. 16 */ 17 18 #include <linux/slab.h> 19 #include <linux/input.h> 20 #include <linux/input/mt.h> 21 #include <linux/serio.h> 22 #include <linux/libps2.h> 23 24 #include "psmouse.h" 25 #include "alps.h" 26 27 /* 28 * Definitions for ALPS version 3 and 4 command mode protocol 29 */ 30 #define ALPS_CMD_NIBBLE_10 0x01f2 31 32 #define ALPS_REG_BASE_RUSHMORE 0xc2c0 33 #define ALPS_REG_BASE_PINNACLE 0x0000 34 35 static const struct alps_nibble_commands alps_v3_nibble_commands[] = { 36 { PSMOUSE_CMD_SETPOLL, 0x00 }, /* 0 */ 37 { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 38 { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 39 { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 40 { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 41 { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 42 { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 43 { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 44 { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 45 { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 46 { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 47 { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 48 { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 49 { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 50 { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 51 { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 52 }; 53 54 static const struct alps_nibble_commands alps_v4_nibble_commands[] = { 55 { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 56 { PSMOUSE_CMD_RESET_DIS, 0x00 }, /* 1 */ 57 { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* 2 */ 58 { PSMOUSE_CMD_SETRATE, 0x0a }, /* 3 */ 59 { PSMOUSE_CMD_SETRATE, 0x14 }, /* 4 */ 60 { PSMOUSE_CMD_SETRATE, 0x28 }, /* 5 */ 61 { PSMOUSE_CMD_SETRATE, 0x3c }, /* 6 */ 62 { PSMOUSE_CMD_SETRATE, 0x50 }, /* 7 */ 63 { PSMOUSE_CMD_SETRATE, 0x64 }, /* 8 */ 64 { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 9 */ 65 { ALPS_CMD_NIBBLE_10, 0x00 }, /* a */ 66 { PSMOUSE_CMD_SETRES, 0x00 }, /* b */ 67 { PSMOUSE_CMD_SETRES, 0x01 }, /* c */ 68 { PSMOUSE_CMD_SETRES, 0x02 }, /* d */ 69 { PSMOUSE_CMD_SETRES, 0x03 }, /* e */ 70 { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 71 }; 72 73 static const struct alps_nibble_commands alps_v6_nibble_commands[] = { 74 { PSMOUSE_CMD_ENABLE, 0x00 }, /* 0 */ 75 { PSMOUSE_CMD_SETRATE, 0x0a }, /* 1 */ 76 { PSMOUSE_CMD_SETRATE, 0x14 }, /* 2 */ 77 { PSMOUSE_CMD_SETRATE, 0x28 }, /* 3 */ 78 { PSMOUSE_CMD_SETRATE, 0x3c }, /* 4 */ 79 { PSMOUSE_CMD_SETRATE, 0x50 }, /* 5 */ 80 { PSMOUSE_CMD_SETRATE, 0x64 }, /* 6 */ 81 { PSMOUSE_CMD_SETRATE, 0xc8 }, /* 7 */ 82 { PSMOUSE_CMD_GETID, 0x00 }, /* 8 */ 83 { PSMOUSE_CMD_GETINFO, 0x00 }, /* 9 */ 84 { PSMOUSE_CMD_SETRES, 0x00 }, /* a */ 85 { PSMOUSE_CMD_SETRES, 0x01 }, /* b */ 86 { PSMOUSE_CMD_SETRES, 0x02 }, /* c */ 87 { PSMOUSE_CMD_SETRES, 0x03 }, /* d */ 88 { PSMOUSE_CMD_SETSCALE21, 0x00 }, /* e */ 89 { PSMOUSE_CMD_SETSCALE11, 0x00 }, /* f */ 90 }; 91 92 93 #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */ 94 #define ALPS_PASS 0x04 /* device has a pass-through port */ 95 96 #define ALPS_WHEEL 0x08 /* hardware wheel present */ 97 #define ALPS_FW_BK_1 0x10 /* front & back buttons present */ 98 #define ALPS_FW_BK_2 0x20 /* front & back buttons present */ 99 #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ 100 #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with 101 6-byte ALPS packet */ 102 #define ALPS_IS_RUSHMORE 0x100 /* device is a rushmore */ 103 #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ 104 105 static const struct alps_model_info alps_model_data[] = { 106 { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */ 107 { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 }, /* UMAX-530T */ 108 { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 109 { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 110 { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, /* HP ze1115 */ 111 { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 112 { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 113 { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */ 114 { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ 115 { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */ 116 { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 117 { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */ 118 { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */ 119 { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 }, 120 { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */ 121 { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ 122 { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, 123 { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ 124 /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ 125 { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, 126 ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, 127 { { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V6, 0xff, 0xff, ALPS_DUALPOINT }, /* Dell XT2 */ 128 { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ 129 { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, 130 ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */ 131 { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 }, 132 }; 133 134 static void alps_set_abs_params_st(struct alps_data *priv, 135 struct input_dev *dev1); 136 static void alps_set_abs_params_mt(struct alps_data *priv, 137 struct input_dev *dev1); 138 139 /* 140 * XXX - this entry is suspicious. First byte has zero lower nibble, 141 * which is what a normal mouse would report. Also, the value 0x0e 142 * isn't valid per PS/2 spec. 143 */ 144 145 /* Packet formats are described in Documentation/input/alps.txt */ 146 147 static bool alps_is_valid_first_byte(struct alps_data *priv, 148 unsigned char data) 149 { 150 return (data & priv->mask0) == priv->byte0; 151 } 152 153 static void alps_report_buttons(struct psmouse *psmouse, 154 struct input_dev *dev1, struct input_dev *dev2, 155 int left, int right, int middle) 156 { 157 struct input_dev *dev; 158 159 /* 160 * If shared button has already been reported on the 161 * other device (dev2) then this event should be also 162 * sent through that device. 163 */ 164 dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1; 165 input_report_key(dev, BTN_LEFT, left); 166 167 dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1; 168 input_report_key(dev, BTN_RIGHT, right); 169 170 dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1; 171 input_report_key(dev, BTN_MIDDLE, middle); 172 173 /* 174 * Sync the _other_ device now, we'll do the first 175 * device later once we report the rest of the events. 176 */ 177 input_sync(dev2); 178 } 179 180 static void alps_process_packet_v1_v2(struct psmouse *psmouse) 181 { 182 struct alps_data *priv = psmouse->private; 183 unsigned char *packet = psmouse->packet; 184 struct input_dev *dev = psmouse->dev; 185 struct input_dev *dev2 = priv->dev2; 186 int x, y, z, ges, fin, left, right, middle; 187 int back = 0, forward = 0; 188 189 if (priv->proto_version == ALPS_PROTO_V1) { 190 left = packet[2] & 0x10; 191 right = packet[2] & 0x08; 192 middle = 0; 193 x = packet[1] | ((packet[0] & 0x07) << 7); 194 y = packet[4] | ((packet[3] & 0x07) << 7); 195 z = packet[5]; 196 } else { 197 left = packet[3] & 1; 198 right = packet[3] & 2; 199 middle = packet[3] & 4; 200 x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); 201 y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); 202 z = packet[5]; 203 } 204 205 if (priv->flags & ALPS_FW_BK_1) { 206 back = packet[0] & 0x10; 207 forward = packet[2] & 4; 208 } 209 210 if (priv->flags & ALPS_FW_BK_2) { 211 back = packet[3] & 4; 212 forward = packet[2] & 4; 213 if ((middle = forward && back)) 214 forward = back = 0; 215 } 216 217 ges = packet[2] & 1; 218 fin = packet[2] & 2; 219 220 if ((priv->flags & ALPS_DUALPOINT) && z == 127) { 221 input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); 222 input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); 223 224 alps_report_buttons(psmouse, dev2, dev, left, right, middle); 225 226 input_sync(dev2); 227 return; 228 } 229 230 alps_report_buttons(psmouse, dev, dev2, left, right, middle); 231 232 /* Convert hardware tap to a reasonable Z value */ 233 if (ges && !fin) 234 z = 40; 235 236 /* 237 * A "tap and drag" operation is reported by the hardware as a transition 238 * from (!fin && ges) to (fin && ges). This should be translated to the 239 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. 240 */ 241 if (ges && fin && !priv->prev_fin) { 242 input_report_abs(dev, ABS_X, x); 243 input_report_abs(dev, ABS_Y, y); 244 input_report_abs(dev, ABS_PRESSURE, 0); 245 input_report_key(dev, BTN_TOOL_FINGER, 0); 246 input_sync(dev); 247 } 248 priv->prev_fin = fin; 249 250 if (z > 30) 251 input_report_key(dev, BTN_TOUCH, 1); 252 if (z < 25) 253 input_report_key(dev, BTN_TOUCH, 0); 254 255 if (z > 0) { 256 input_report_abs(dev, ABS_X, x); 257 input_report_abs(dev, ABS_Y, y); 258 } 259 260 input_report_abs(dev, ABS_PRESSURE, z); 261 input_report_key(dev, BTN_TOOL_FINGER, z > 0); 262 263 if (priv->flags & ALPS_WHEEL) 264 input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07)); 265 266 if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 267 input_report_key(dev, BTN_FORWARD, forward); 268 input_report_key(dev, BTN_BACK, back); 269 } 270 271 if (priv->flags & ALPS_FOUR_BUTTONS) { 272 input_report_key(dev, BTN_0, packet[2] & 4); 273 input_report_key(dev, BTN_1, packet[0] & 0x10); 274 input_report_key(dev, BTN_2, packet[3] & 4); 275 input_report_key(dev, BTN_3, packet[0] & 0x20); 276 } 277 278 input_sync(dev); 279 } 280 281 /* 282 * Process bitmap data for V5 protocols. Return value is null. 283 * 284 * The bitmaps don't have enough data to track fingers, so this function 285 * only generates points representing a bounding box of at most two contacts. 286 * These two points are returned in fields->mt. 287 */ 288 static void alps_process_bitmap_dolphin(struct alps_data *priv, 289 struct alps_fields *fields) 290 { 291 int box_middle_x, box_middle_y; 292 unsigned int x_map, y_map; 293 unsigned char start_bit, end_bit; 294 unsigned char x_msb, x_lsb, y_msb, y_lsb; 295 296 x_map = fields->x_map; 297 y_map = fields->y_map; 298 299 if (!x_map || !y_map) 300 return; 301 302 /* Get Most-significant and Least-significant bit */ 303 x_msb = fls(x_map); 304 x_lsb = ffs(x_map); 305 y_msb = fls(y_map); 306 y_lsb = ffs(y_map); 307 308 /* Most-significant bit should never exceed max sensor line number */ 309 if (x_msb > priv->x_bits || y_msb > priv->y_bits) 310 return; 311 312 if (fields->fingers > 1) { 313 start_bit = priv->x_bits - x_msb; 314 end_bit = priv->x_bits - x_lsb; 315 box_middle_x = (priv->x_max * (start_bit + end_bit)) / 316 (2 * (priv->x_bits - 1)); 317 318 start_bit = y_lsb - 1; 319 end_bit = y_msb - 1; 320 box_middle_y = (priv->y_max * (start_bit + end_bit)) / 321 (2 * (priv->y_bits - 1)); 322 fields->mt[0] = fields->st; 323 fields->mt[1].x = 2 * box_middle_x - fields->mt[0].x; 324 fields->mt[1].y = 2 * box_middle_y - fields->mt[0].y; 325 } 326 } 327 328 static void alps_get_bitmap_points(unsigned int map, 329 struct alps_bitmap_point *low, 330 struct alps_bitmap_point *high, 331 int *fingers) 332 { 333 struct alps_bitmap_point *point; 334 int i, bit, prev_bit = 0; 335 336 point = low; 337 for (i = 0; map != 0; i++, map >>= 1) { 338 bit = map & 1; 339 if (bit) { 340 if (!prev_bit) { 341 point->start_bit = i; 342 point->num_bits = 0; 343 (*fingers)++; 344 } 345 point->num_bits++; 346 } else { 347 if (prev_bit) 348 point = high; 349 } 350 prev_bit = bit; 351 } 352 } 353 354 /* 355 * Process bitmap data from v3 and v4 protocols. Returns the number of 356 * fingers detected. A return value of 0 means at least one of the 357 * bitmaps was empty. 358 * 359 * The bitmaps don't have enough data to track fingers, so this function 360 * only generates points representing a bounding box of all contacts. 361 * These points are returned in fields->mt when the return value 362 * is greater than 0. 363 */ 364 static int alps_process_bitmap(struct alps_data *priv, 365 struct alps_fields *fields) 366 { 367 int i, fingers_x = 0, fingers_y = 0, fingers; 368 struct alps_bitmap_point x_low = {0,}, x_high = {0,}; 369 struct alps_bitmap_point y_low = {0,}, y_high = {0,}; 370 371 if (!fields->x_map || !fields->y_map) 372 return 0; 373 374 alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x); 375 alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y); 376 377 /* 378 * Fingers can overlap, so we use the maximum count of fingers 379 * on either axis as the finger count. 380 */ 381 fingers = max(fingers_x, fingers_y); 382 383 /* 384 * If an axis reports only a single contact, we have overlapping or 385 * adjacent fingers. Divide the single contact between the two points. 386 */ 387 if (fingers_x == 1) { 388 i = (x_low.num_bits - 1) / 2; 389 x_low.num_bits = x_low.num_bits - i; 390 x_high.start_bit = x_low.start_bit + i; 391 x_high.num_bits = max(i, 1); 392 } 393 if (fingers_y == 1) { 394 i = (y_low.num_bits - 1) / 2; 395 y_low.num_bits = y_low.num_bits - i; 396 y_high.start_bit = y_low.start_bit + i; 397 y_high.num_bits = max(i, 1); 398 } 399 400 fields->mt[0].x = 401 (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) / 402 (2 * (priv->x_bits - 1)); 403 fields->mt[0].y = 404 (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) / 405 (2 * (priv->y_bits - 1)); 406 407 fields->mt[1].x = 408 (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) / 409 (2 * (priv->x_bits - 1)); 410 fields->mt[1].y = 411 (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) / 412 (2 * (priv->y_bits - 1)); 413 414 /* y-bitmap order is reversed, except on rushmore */ 415 if (!(priv->flags & ALPS_IS_RUSHMORE)) { 416 fields->mt[0].y = priv->y_max - fields->mt[0].y; 417 fields->mt[1].y = priv->y_max - fields->mt[1].y; 418 } 419 420 return fingers; 421 } 422 423 static void alps_set_slot(struct input_dev *dev, int slot, int x, int y) 424 { 425 input_mt_slot(dev, slot); 426 input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); 427 input_report_abs(dev, ABS_MT_POSITION_X, x); 428 input_report_abs(dev, ABS_MT_POSITION_Y, y); 429 } 430 431 static void alps_report_mt_data(struct psmouse *psmouse, int n) 432 { 433 struct alps_data *priv = psmouse->private; 434 struct input_dev *dev = psmouse->dev; 435 struct alps_fields *f = &priv->f; 436 int i, slot[MAX_TOUCHES]; 437 438 input_mt_assign_slots(dev, slot, f->mt, n); 439 for (i = 0; i < n; i++) 440 alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y); 441 442 input_mt_sync_frame(dev); 443 } 444 445 static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers) 446 { 447 struct alps_data *priv = psmouse->private; 448 struct input_dev *dev = psmouse->dev; 449 struct alps_fields *f = &priv->f; 450 451 /* Use st data when we don't have mt data */ 452 if (fingers < 2) { 453 f->mt[0].x = f->st.x; 454 f->mt[0].y = f->st.y; 455 fingers = f->pressure > 0 ? 1 : 0; 456 } 457 458 alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 2); 459 460 input_mt_report_finger_count(dev, fingers); 461 462 input_report_key(dev, BTN_LEFT, f->left); 463 input_report_key(dev, BTN_RIGHT, f->right); 464 input_report_key(dev, BTN_MIDDLE, f->middle); 465 466 input_report_abs(dev, ABS_PRESSURE, f->pressure); 467 468 input_sync(dev); 469 } 470 471 static void alps_process_trackstick_packet_v3(struct psmouse *psmouse) 472 { 473 struct alps_data *priv = psmouse->private; 474 unsigned char *packet = psmouse->packet; 475 struct input_dev *dev = priv->dev2; 476 int x, y, z, left, right, middle; 477 478 /* Sanity check packet */ 479 if (!(packet[0] & 0x40)) { 480 psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n"); 481 return; 482 } 483 484 /* 485 * There's a special packet that seems to indicate the end 486 * of a stream of trackstick data. Filter these out. 487 */ 488 if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f) 489 return; 490 491 x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f)); 492 y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f)); 493 z = (packet[4] & 0x7c) >> 2; 494 495 /* 496 * The x and y values tend to be quite large, and when used 497 * alone the trackstick is difficult to use. Scale them down 498 * to compensate. 499 */ 500 x /= 8; 501 y /= 8; 502 503 input_report_rel(dev, REL_X, x); 504 input_report_rel(dev, REL_Y, -y); 505 506 /* 507 * Most ALPS models report the trackstick buttons in the touchpad 508 * packets, but a few report them here. No reliable way has been 509 * found to differentiate between the models upfront, so we enable 510 * the quirk in response to seeing a button press in the trackstick 511 * packet. 512 */ 513 left = packet[3] & 0x01; 514 right = packet[3] & 0x02; 515 middle = packet[3] & 0x04; 516 517 if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) && 518 (left || right || middle)) 519 priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS; 520 521 if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) { 522 input_report_key(dev, BTN_LEFT, left); 523 input_report_key(dev, BTN_RIGHT, right); 524 input_report_key(dev, BTN_MIDDLE, middle); 525 } 526 527 input_sync(dev); 528 return; 529 } 530 531 static void alps_decode_buttons_v3(struct alps_fields *f, unsigned char *p) 532 { 533 f->left = !!(p[3] & 0x01); 534 f->right = !!(p[3] & 0x02); 535 f->middle = !!(p[3] & 0x04); 536 537 f->ts_left = !!(p[3] & 0x10); 538 f->ts_right = !!(p[3] & 0x20); 539 f->ts_middle = !!(p[3] & 0x40); 540 } 541 542 static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p, 543 struct psmouse *psmouse) 544 { 545 f->first_mp = !!(p[4] & 0x40); 546 f->is_mp = !!(p[0] & 0x40); 547 548 f->fingers = (p[5] & 0x3) + 1; 549 f->x_map = ((p[4] & 0x7e) << 8) | 550 ((p[1] & 0x7f) << 2) | 551 ((p[0] & 0x30) >> 4); 552 f->y_map = ((p[3] & 0x70) << 4) | 553 ((p[2] & 0x7f) << 1) | 554 (p[4] & 0x01); 555 556 f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) | 557 ((p[0] & 0x30) >> 4); 558 f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f); 559 f->pressure = p[5] & 0x7f; 560 561 alps_decode_buttons_v3(f, p); 562 563 return 0; 564 } 565 566 static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p, 567 struct psmouse *psmouse) 568 { 569 alps_decode_pinnacle(f, p, psmouse); 570 571 /* Rushmore's packet decode has a bit difference with Pinnacle's */ 572 f->is_mp = !!(p[5] & 0x40); 573 f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1; 574 f->x_map |= (p[5] & 0x10) << 11; 575 f->y_map |= (p[5] & 0x20) << 6; 576 577 return 0; 578 } 579 580 static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p, 581 struct psmouse *psmouse) 582 { 583 u64 palm_data = 0; 584 struct alps_data *priv = psmouse->private; 585 586 f->first_mp = !!(p[0] & 0x02); 587 f->is_mp = !!(p[0] & 0x20); 588 589 if (!f->is_mp) { 590 f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7)); 591 f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3)); 592 f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f; 593 alps_decode_buttons_v3(f, p); 594 } else { 595 f->fingers = ((p[0] & 0x6) >> 1 | 596 (p[0] & 0x10) >> 2); 597 598 palm_data = (p[1] & 0x7f) | 599 ((p[2] & 0x7f) << 7) | 600 ((p[4] & 0x7f) << 14) | 601 ((p[5] & 0x7f) << 21) | 602 ((p[3] & 0x07) << 28) | 603 (((u64)p[3] & 0x70) << 27) | 604 (((u64)p[0] & 0x01) << 34); 605 606 /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */ 607 f->y_map = palm_data & (BIT(priv->y_bits) - 1); 608 609 /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */ 610 f->x_map = (palm_data >> priv->y_bits) & 611 (BIT(priv->x_bits) - 1); 612 } 613 614 return 0; 615 } 616 617 static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse) 618 { 619 struct alps_data *priv = psmouse->private; 620 unsigned char *packet = psmouse->packet; 621 struct input_dev *dev2 = priv->dev2; 622 struct alps_fields *f = &priv->f; 623 int fingers = 0; 624 625 memset(f, 0, sizeof(*f)); 626 627 priv->decode_fields(f, packet, psmouse); 628 629 /* 630 * There's no single feature of touchpad position and bitmap packets 631 * that can be used to distinguish between them. We rely on the fact 632 * that a bitmap packet should always follow a position packet with 633 * bit 6 of packet[4] set. 634 */ 635 if (priv->multi_packet) { 636 /* 637 * Sometimes a position packet will indicate a multi-packet 638 * sequence, but then what follows is another position 639 * packet. Check for this, and when it happens process the 640 * position packet as usual. 641 */ 642 if (f->is_mp) { 643 fingers = f->fingers; 644 if (priv->proto_version == ALPS_PROTO_V3) { 645 if (alps_process_bitmap(priv, f) == 0) 646 fingers = 0; /* Use st data */ 647 648 /* Now process position packet */ 649 priv->decode_fields(f, priv->multi_data, 650 psmouse); 651 } else { 652 /* 653 * Because Dolphin uses position packet's 654 * coordinate data as Pt1 and uses it to 655 * calculate Pt2, so we need to do position 656 * packet decode first. 657 */ 658 priv->decode_fields(f, priv->multi_data, 659 psmouse); 660 661 /* 662 * Since Dolphin's finger number is reliable, 663 * there is no need to compare with bmap_fn. 664 */ 665 alps_process_bitmap_dolphin(priv, f); 666 } 667 } else { 668 priv->multi_packet = 0; 669 } 670 } 671 672 /* 673 * Bit 6 of byte 0 is not usually set in position packets. The only 674 * times it seems to be set is in situations where the data is 675 * suspect anyway, e.g. a palm resting flat on the touchpad. Given 676 * this combined with the fact that this bit is useful for filtering 677 * out misidentified bitmap packets, we reject anything with this 678 * bit set. 679 */ 680 if (f->is_mp) 681 return; 682 683 if (!priv->multi_packet && f->first_mp) { 684 priv->multi_packet = 1; 685 memcpy(priv->multi_data, packet, sizeof(priv->multi_data)); 686 return; 687 } 688 689 priv->multi_packet = 0; 690 691 /* 692 * Sometimes the hardware sends a single packet with z = 0 693 * in the middle of a stream. Real releases generate packets 694 * with x, y, and z all zero, so these seem to be flukes. 695 * Ignore them. 696 */ 697 if (f->st.x && f->st.y && !f->pressure) 698 return; 699 700 alps_report_semi_mt_data(psmouse, fingers); 701 702 if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) { 703 input_report_key(dev2, BTN_LEFT, f->ts_left); 704 input_report_key(dev2, BTN_RIGHT, f->ts_right); 705 input_report_key(dev2, BTN_MIDDLE, f->ts_middle); 706 input_sync(dev2); 707 } 708 } 709 710 static void alps_process_packet_v3(struct psmouse *psmouse) 711 { 712 unsigned char *packet = psmouse->packet; 713 714 /* 715 * v3 protocol packets come in three types, two representing 716 * touchpad data and one representing trackstick data. 717 * Trackstick packets seem to be distinguished by always 718 * having 0x3f in the last byte. This value has never been 719 * observed in the last byte of either of the other types 720 * of packets. 721 */ 722 if (packet[5] == 0x3f) { 723 alps_process_trackstick_packet_v3(psmouse); 724 return; 725 } 726 727 alps_process_touchpad_packet_v3_v5(psmouse); 728 } 729 730 static void alps_process_packet_v6(struct psmouse *psmouse) 731 { 732 struct alps_data *priv = psmouse->private; 733 unsigned char *packet = psmouse->packet; 734 struct input_dev *dev = psmouse->dev; 735 struct input_dev *dev2 = priv->dev2; 736 int x, y, z, left, right, middle; 737 738 /* 739 * We can use Byte5 to distinguish if the packet is from Touchpad 740 * or Trackpoint. 741 * Touchpad: 0 - 0x7E 742 * Trackpoint: 0x7F 743 */ 744 if (packet[5] == 0x7F) { 745 /* It should be a DualPoint when received Trackpoint packet */ 746 if (!(priv->flags & ALPS_DUALPOINT)) 747 return; 748 749 /* Trackpoint packet */ 750 x = packet[1] | ((packet[3] & 0x20) << 2); 751 y = packet[2] | ((packet[3] & 0x40) << 1); 752 z = packet[4]; 753 left = packet[3] & 0x01; 754 right = packet[3] & 0x02; 755 middle = packet[3] & 0x04; 756 757 /* To prevent the cursor jump when finger lifted */ 758 if (x == 0x7F && y == 0x7F && z == 0x7F) 759 x = y = z = 0; 760 761 /* Divide 4 since trackpoint's speed is too fast */ 762 input_report_rel(dev2, REL_X, (char)x / 4); 763 input_report_rel(dev2, REL_Y, -((char)y / 4)); 764 765 input_report_key(dev2, BTN_LEFT, left); 766 input_report_key(dev2, BTN_RIGHT, right); 767 input_report_key(dev2, BTN_MIDDLE, middle); 768 769 input_sync(dev2); 770 return; 771 } 772 773 /* Touchpad packet */ 774 x = packet[1] | ((packet[3] & 0x78) << 4); 775 y = packet[2] | ((packet[4] & 0x78) << 4); 776 z = packet[5]; 777 left = packet[3] & 0x01; 778 right = packet[3] & 0x02; 779 780 if (z > 30) 781 input_report_key(dev, BTN_TOUCH, 1); 782 if (z < 25) 783 input_report_key(dev, BTN_TOUCH, 0); 784 785 if (z > 0) { 786 input_report_abs(dev, ABS_X, x); 787 input_report_abs(dev, ABS_Y, y); 788 } 789 790 input_report_abs(dev, ABS_PRESSURE, z); 791 input_report_key(dev, BTN_TOOL_FINGER, z > 0); 792 793 /* v6 touchpad does not have middle button */ 794 input_report_key(dev, BTN_LEFT, left); 795 input_report_key(dev, BTN_RIGHT, right); 796 797 input_sync(dev); 798 } 799 800 static void alps_process_packet_v4(struct psmouse *psmouse) 801 { 802 struct alps_data *priv = psmouse->private; 803 unsigned char *packet = psmouse->packet; 804 struct alps_fields *f = &priv->f; 805 int offset; 806 807 /* 808 * v4 has a 6-byte encoding for bitmap data, but this data is 809 * broken up between 3 normal packets. Use priv->multi_packet to 810 * track our position in the bitmap packet. 811 */ 812 if (packet[6] & 0x40) { 813 /* sync, reset position */ 814 priv->multi_packet = 0; 815 } 816 817 if (WARN_ON_ONCE(priv->multi_packet > 2)) 818 return; 819 820 offset = 2 * priv->multi_packet; 821 priv->multi_data[offset] = packet[6]; 822 priv->multi_data[offset + 1] = packet[7]; 823 824 if (++priv->multi_packet > 2) { 825 priv->multi_packet = 0; 826 827 f->x_map = ((priv->multi_data[2] & 0x1f) << 10) | 828 ((priv->multi_data[3] & 0x60) << 3) | 829 ((priv->multi_data[0] & 0x3f) << 2) | 830 ((priv->multi_data[1] & 0x60) >> 5); 831 f->y_map = ((priv->multi_data[5] & 0x01) << 10) | 832 ((priv->multi_data[3] & 0x1f) << 5) | 833 (priv->multi_data[1] & 0x1f); 834 835 f->fingers = alps_process_bitmap(priv, f); 836 } 837 838 f->left = packet[4] & 0x01; 839 f->right = packet[4] & 0x02; 840 841 f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) | 842 ((packet[0] & 0x30) >> 4); 843 f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f); 844 f->pressure = packet[5] & 0x7f; 845 846 alps_report_semi_mt_data(psmouse, f->fingers); 847 } 848 849 static bool alps_is_valid_package_v7(struct psmouse *psmouse) 850 { 851 switch (psmouse->pktcnt) { 852 case 3: 853 return (psmouse->packet[2] & 0x40) == 0x40; 854 case 4: 855 return (psmouse->packet[3] & 0x48) == 0x48; 856 case 6: 857 return (psmouse->packet[5] & 0x40) == 0x00; 858 } 859 return true; 860 } 861 862 static unsigned char alps_get_packet_id_v7(char *byte) 863 { 864 unsigned char packet_id; 865 866 if (byte[4] & 0x40) 867 packet_id = V7_PACKET_ID_TWO; 868 else if (byte[4] & 0x01) 869 packet_id = V7_PACKET_ID_MULTI; 870 else if ((byte[0] & 0x10) && !(byte[4] & 0x43)) 871 packet_id = V7_PACKET_ID_NEW; 872 else if (byte[1] == 0x00 && byte[4] == 0x00) 873 packet_id = V7_PACKET_ID_IDLE; 874 else 875 packet_id = V7_PACKET_ID_UNKNOWN; 876 877 return packet_id; 878 } 879 880 static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt, 881 unsigned char *pkt, 882 unsigned char pkt_id) 883 { 884 mt[0].x = ((pkt[2] & 0x80) << 4); 885 mt[0].x |= ((pkt[2] & 0x3F) << 5); 886 mt[0].x |= ((pkt[3] & 0x30) >> 1); 887 mt[0].x |= (pkt[3] & 0x07); 888 mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07); 889 890 mt[1].x = ((pkt[3] & 0x80) << 4); 891 mt[1].x |= ((pkt[4] & 0x80) << 3); 892 mt[1].x |= ((pkt[4] & 0x3F) << 4); 893 mt[1].y = ((pkt[5] & 0x80) << 3); 894 mt[1].y |= ((pkt[5] & 0x3F) << 4); 895 896 switch (pkt_id) { 897 case V7_PACKET_ID_TWO: 898 mt[1].x &= ~0x000F; 899 mt[1].y |= 0x000F; 900 break; 901 902 case V7_PACKET_ID_MULTI: 903 mt[1].x &= ~0x003F; 904 mt[1].y &= ~0x0020; 905 mt[1].y |= ((pkt[4] & 0x02) << 4); 906 mt[1].y |= 0x001F; 907 break; 908 909 case V7_PACKET_ID_NEW: 910 mt[1].x &= ~0x003F; 911 mt[1].x |= (pkt[0] & 0x20); 912 mt[1].y |= 0x000F; 913 break; 914 } 915 916 mt[0].y = 0x7FF - mt[0].y; 917 mt[1].y = 0x7FF - mt[1].y; 918 } 919 920 static int alps_get_mt_count(struct input_mt_pos *mt) 921 { 922 int i; 923 924 for (i = 0; i < MAX_TOUCHES && mt[i].x != 0 && mt[i].y != 0; i++) 925 /* empty */; 926 927 return i; 928 } 929 930 static int alps_decode_packet_v7(struct alps_fields *f, 931 unsigned char *p, 932 struct psmouse *psmouse) 933 { 934 unsigned char pkt_id; 935 936 pkt_id = alps_get_packet_id_v7(p); 937 if (pkt_id == V7_PACKET_ID_IDLE) 938 return 0; 939 if (pkt_id == V7_PACKET_ID_UNKNOWN) 940 return -1; 941 942 alps_get_finger_coordinate_v7(f->mt, p, pkt_id); 943 944 if (pkt_id == V7_PACKET_ID_TWO || pkt_id == V7_PACKET_ID_MULTI) { 945 f->left = (p[0] & 0x80) >> 7; 946 f->right = (p[0] & 0x20) >> 5; 947 f->middle = (p[0] & 0x10) >> 4; 948 } 949 950 if (pkt_id == V7_PACKET_ID_TWO) 951 f->fingers = alps_get_mt_count(f->mt); 952 else if (pkt_id == V7_PACKET_ID_MULTI) 953 f->fingers = 3 + (p[5] & 0x03); 954 955 return 0; 956 } 957 958 static void alps_process_trackstick_packet_v7(struct psmouse *psmouse) 959 { 960 struct alps_data *priv = psmouse->private; 961 unsigned char *packet = psmouse->packet; 962 struct input_dev *dev2 = priv->dev2; 963 int x, y, z, left, right, middle; 964 965 /* 966 * b7 b6 b5 b4 b3 b2 b1 b0 967 * Byte0 0 1 0 0 1 0 0 0 968 * Byte1 1 1 * * 1 M R L 969 * Byte2 X7 1 X5 X4 X3 X2 X1 X0 970 * Byte3 Z6 1 Y6 X6 1 Y2 Y1 Y0 971 * Byte4 Y7 0 Y5 Y4 Y3 1 1 0 972 * Byte5 T&P 0 Z5 Z4 Z3 Z2 Z1 Z0 973 * M / R / L: Middle / Right / Left button 974 */ 975 976 x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2); 977 y = (packet[3] & 0x07) | (packet[4] & 0xb8) | 978 ((packet[3] & 0x20) << 1); 979 z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1); 980 981 left = (packet[1] & 0x01); 982 right = (packet[1] & 0x02) >> 1; 983 middle = (packet[1] & 0x04) >> 2; 984 985 /* Divide 2 since trackpoint's speed is too fast */ 986 input_report_rel(dev2, REL_X, (char)x / 2); 987 input_report_rel(dev2, REL_Y, -((char)y / 2)); 988 989 input_report_key(dev2, BTN_LEFT, left); 990 input_report_key(dev2, BTN_RIGHT, right); 991 input_report_key(dev2, BTN_MIDDLE, middle); 992 993 input_sync(dev2); 994 } 995 996 static void alps_process_touchpad_packet_v7(struct psmouse *psmouse) 997 { 998 struct alps_data *priv = psmouse->private; 999 struct input_dev *dev = psmouse->dev; 1000 struct alps_fields *f = &priv->f; 1001 1002 memset(f, 0, sizeof(*f)); 1003 1004 if (priv->decode_fields(f, psmouse->packet, psmouse)) 1005 return; 1006 1007 alps_report_mt_data(psmouse, alps_get_mt_count(f->mt)); 1008 1009 input_mt_report_finger_count(dev, f->fingers); 1010 1011 input_report_key(dev, BTN_LEFT, f->left); 1012 input_report_key(dev, BTN_RIGHT, f->right); 1013 input_report_key(dev, BTN_MIDDLE, f->middle); 1014 1015 input_sync(dev); 1016 } 1017 1018 static void alps_process_packet_v7(struct psmouse *psmouse) 1019 { 1020 unsigned char *packet = psmouse->packet; 1021 1022 if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06) 1023 alps_process_trackstick_packet_v7(psmouse); 1024 else 1025 alps_process_touchpad_packet_v7(psmouse); 1026 } 1027 1028 static void alps_report_bare_ps2_packet(struct psmouse *psmouse, 1029 unsigned char packet[], 1030 bool report_buttons) 1031 { 1032 struct alps_data *priv = psmouse->private; 1033 struct input_dev *dev2 = priv->dev2; 1034 1035 if (report_buttons) 1036 alps_report_buttons(psmouse, dev2, psmouse->dev, 1037 packet[0] & 1, packet[0] & 2, packet[0] & 4); 1038 1039 input_report_rel(dev2, REL_X, 1040 packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); 1041 input_report_rel(dev2, REL_Y, 1042 packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); 1043 1044 input_sync(dev2); 1045 } 1046 1047 static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse) 1048 { 1049 struct alps_data *priv = psmouse->private; 1050 1051 if (psmouse->pktcnt < 6) 1052 return PSMOUSE_GOOD_DATA; 1053 1054 if (psmouse->pktcnt == 6) { 1055 /* 1056 * Start a timer to flush the packet if it ends up last 1057 * 6-byte packet in the stream. Timer needs to fire 1058 * psmouse core times out itself. 20 ms should be enough 1059 * to decide if we are getting more data or not. 1060 */ 1061 mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20)); 1062 return PSMOUSE_GOOD_DATA; 1063 } 1064 1065 del_timer(&priv->timer); 1066 1067 if (psmouse->packet[6] & 0x80) { 1068 1069 /* 1070 * Highest bit is set - that means we either had 1071 * complete ALPS packet and this is start of the 1072 * next packet or we got garbage. 1073 */ 1074 1075 if (((psmouse->packet[3] | 1076 psmouse->packet[4] | 1077 psmouse->packet[5]) & 0x80) || 1078 (!alps_is_valid_first_byte(priv, psmouse->packet[6]))) { 1079 psmouse_dbg(psmouse, 1080 "refusing packet %4ph (suspected interleaved ps/2)\n", 1081 psmouse->packet + 3); 1082 return PSMOUSE_BAD_DATA; 1083 } 1084 1085 priv->process_packet(psmouse); 1086 1087 /* Continue with the next packet */ 1088 psmouse->packet[0] = psmouse->packet[6]; 1089 psmouse->pktcnt = 1; 1090 1091 } else { 1092 1093 /* 1094 * High bit is 0 - that means that we indeed got a PS/2 1095 * packet in the middle of ALPS packet. 1096 * 1097 * There is also possibility that we got 6-byte ALPS 1098 * packet followed by 3-byte packet from trackpoint. We 1099 * can not distinguish between these 2 scenarios but 1100 * because the latter is unlikely to happen in course of 1101 * normal operation (user would need to press all 1102 * buttons on the pad and start moving trackpoint 1103 * without touching the pad surface) we assume former. 1104 * Even if we are wrong the wost thing that would happen 1105 * the cursor would jump but we should not get protocol 1106 * de-synchronization. 1107 */ 1108 1109 alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3], 1110 false); 1111 1112 /* 1113 * Continue with the standard ALPS protocol handling, 1114 * but make sure we won't process it as an interleaved 1115 * packet again, which may happen if all buttons are 1116 * pressed. To avoid this let's reset the 4th bit which 1117 * is normally 1. 1118 */ 1119 psmouse->packet[3] = psmouse->packet[6] & 0xf7; 1120 psmouse->pktcnt = 4; 1121 } 1122 1123 return PSMOUSE_GOOD_DATA; 1124 } 1125 1126 static void alps_flush_packet(unsigned long data) 1127 { 1128 struct psmouse *psmouse = (struct psmouse *)data; 1129 struct alps_data *priv = psmouse->private; 1130 1131 serio_pause_rx(psmouse->ps2dev.serio); 1132 1133 if (psmouse->pktcnt == psmouse->pktsize) { 1134 1135 /* 1136 * We did not any more data in reasonable amount of time. 1137 * Validate the last 3 bytes and process as a standard 1138 * ALPS packet. 1139 */ 1140 if ((psmouse->packet[3] | 1141 psmouse->packet[4] | 1142 psmouse->packet[5]) & 0x80) { 1143 psmouse_dbg(psmouse, 1144 "refusing packet %3ph (suspected interleaved ps/2)\n", 1145 psmouse->packet + 3); 1146 } else { 1147 priv->process_packet(psmouse); 1148 } 1149 psmouse->pktcnt = 0; 1150 } 1151 1152 serio_continue_rx(psmouse->ps2dev.serio); 1153 } 1154 1155 static psmouse_ret_t alps_process_byte(struct psmouse *psmouse) 1156 { 1157 struct alps_data *priv = psmouse->private; 1158 1159 if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ 1160 if (psmouse->pktcnt == 3) { 1161 alps_report_bare_ps2_packet(psmouse, psmouse->packet, 1162 true); 1163 return PSMOUSE_FULL_PACKET; 1164 } 1165 return PSMOUSE_GOOD_DATA; 1166 } 1167 1168 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */ 1169 1170 if ((priv->flags & ALPS_PS2_INTERLEAVED) && 1171 psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) { 1172 return alps_handle_interleaved_ps2(psmouse); 1173 } 1174 1175 if (!alps_is_valid_first_byte(priv, psmouse->packet[0])) { 1176 psmouse_dbg(psmouse, 1177 "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n", 1178 psmouse->packet[0], priv->mask0, priv->byte0); 1179 return PSMOUSE_BAD_DATA; 1180 } 1181 1182 /* Bytes 2 - pktsize should have 0 in the highest bit */ 1183 if ((priv->proto_version < ALPS_PROTO_V5) && 1184 psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize && 1185 (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) { 1186 psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1187 psmouse->pktcnt - 1, 1188 psmouse->packet[psmouse->pktcnt - 1]); 1189 return PSMOUSE_BAD_DATA; 1190 } 1191 1192 if (priv->proto_version == ALPS_PROTO_V7 && 1193 !alps_is_valid_package_v7(psmouse)) { 1194 psmouse_dbg(psmouse, "refusing packet[%i] = %x\n", 1195 psmouse->pktcnt - 1, 1196 psmouse->packet[psmouse->pktcnt - 1]); 1197 return PSMOUSE_BAD_DATA; 1198 } 1199 1200 if (psmouse->pktcnt == psmouse->pktsize) { 1201 priv->process_packet(psmouse); 1202 return PSMOUSE_FULL_PACKET; 1203 } 1204 1205 return PSMOUSE_GOOD_DATA; 1206 } 1207 1208 static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble) 1209 { 1210 struct ps2dev *ps2dev = &psmouse->ps2dev; 1211 struct alps_data *priv = psmouse->private; 1212 int command; 1213 unsigned char *param; 1214 unsigned char dummy[4]; 1215 1216 BUG_ON(nibble > 0xf); 1217 1218 command = priv->nibble_commands[nibble].command; 1219 param = (command & 0x0f00) ? 1220 dummy : (unsigned char *)&priv->nibble_commands[nibble].data; 1221 1222 if (ps2_command(ps2dev, param, command)) 1223 return -1; 1224 1225 return 0; 1226 } 1227 1228 static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr) 1229 { 1230 struct ps2dev *ps2dev = &psmouse->ps2dev; 1231 struct alps_data *priv = psmouse->private; 1232 int i, nibble; 1233 1234 if (ps2_command(ps2dev, NULL, priv->addr_command)) 1235 return -1; 1236 1237 for (i = 12; i >= 0; i -= 4) { 1238 nibble = (addr >> i) & 0xf; 1239 if (alps_command_mode_send_nibble(psmouse, nibble)) 1240 return -1; 1241 } 1242 1243 return 0; 1244 } 1245 1246 static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 1247 { 1248 struct ps2dev *ps2dev = &psmouse->ps2dev; 1249 unsigned char param[4]; 1250 1251 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 1252 return -1; 1253 1254 /* 1255 * The address being read is returned in the first two bytes 1256 * of the result. Check that this address matches the expected 1257 * address. 1258 */ 1259 if (addr != ((param[0] << 8) | param[1])) 1260 return -1; 1261 1262 return param[2]; 1263 } 1264 1265 static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr) 1266 { 1267 if (alps_command_mode_set_addr(psmouse, addr)) 1268 return -1; 1269 return __alps_command_mode_read_reg(psmouse, addr); 1270 } 1271 1272 static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value) 1273 { 1274 if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf)) 1275 return -1; 1276 if (alps_command_mode_send_nibble(psmouse, value & 0xf)) 1277 return -1; 1278 return 0; 1279 } 1280 1281 static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr, 1282 u8 value) 1283 { 1284 if (alps_command_mode_set_addr(psmouse, addr)) 1285 return -1; 1286 return __alps_command_mode_write_reg(psmouse, value); 1287 } 1288 1289 static int alps_rpt_cmd(struct psmouse *psmouse, int init_command, 1290 int repeated_command, unsigned char *param) 1291 { 1292 struct ps2dev *ps2dev = &psmouse->ps2dev; 1293 1294 param[0] = 0; 1295 if (init_command && ps2_command(ps2dev, param, init_command)) 1296 return -EIO; 1297 1298 if (ps2_command(ps2dev, NULL, repeated_command) || 1299 ps2_command(ps2dev, NULL, repeated_command) || 1300 ps2_command(ps2dev, NULL, repeated_command)) 1301 return -EIO; 1302 1303 param[0] = param[1] = param[2] = 0xff; 1304 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 1305 return -EIO; 1306 1307 psmouse_dbg(psmouse, "%2.2X report: %3ph\n", 1308 repeated_command, param); 1309 return 0; 1310 } 1311 1312 static bool alps_check_valid_firmware_id(unsigned char id[]) 1313 { 1314 if (id[0] == 0x73) 1315 return true; 1316 1317 if (id[0] == 0x88 && 1318 (id[1] == 0x07 || 1319 id[1] == 0x08 || 1320 (id[1] & 0xf0) == 0xb0 || 1321 (id[1] & 0xf0) == 0xc0)) { 1322 return true; 1323 } 1324 1325 return false; 1326 } 1327 1328 static int alps_enter_command_mode(struct psmouse *psmouse) 1329 { 1330 unsigned char param[4]; 1331 1332 if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_RESET_WRAP, param)) { 1333 psmouse_err(psmouse, "failed to enter command mode\n"); 1334 return -1; 1335 } 1336 1337 if (!alps_check_valid_firmware_id(param)) { 1338 psmouse_dbg(psmouse, 1339 "unknown response while entering command mode\n"); 1340 return -1; 1341 } 1342 return 0; 1343 } 1344 1345 static inline int alps_exit_command_mode(struct psmouse *psmouse) 1346 { 1347 struct ps2dev *ps2dev = &psmouse->ps2dev; 1348 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) 1349 return -1; 1350 return 0; 1351 } 1352 1353 /* 1354 * For DualPoint devices select the device that should respond to 1355 * subsequent commands. It looks like glidepad is behind stickpointer, 1356 * I'd thought it would be other way around... 1357 */ 1358 static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable) 1359 { 1360 struct ps2dev *ps2dev = &psmouse->ps2dev; 1361 int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; 1362 1363 if (ps2_command(ps2dev, NULL, cmd) || 1364 ps2_command(ps2dev, NULL, cmd) || 1365 ps2_command(ps2dev, NULL, cmd) || 1366 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 1367 return -1; 1368 1369 /* we may get 3 more bytes, just ignore them */ 1370 ps2_drain(ps2dev, 3, 100); 1371 1372 return 0; 1373 } 1374 1375 static int alps_absolute_mode_v1_v2(struct psmouse *psmouse) 1376 { 1377 struct ps2dev *ps2dev = &psmouse->ps2dev; 1378 1379 /* Try ALPS magic knock - 4 disable before enable */ 1380 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1381 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1382 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1383 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1384 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) 1385 return -1; 1386 1387 /* 1388 * Switch mouse to poll (remote) mode so motion data will not 1389 * get in our way 1390 */ 1391 return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); 1392 } 1393 1394 static int alps_monitor_mode_send_word(struct psmouse *psmouse, u16 word) 1395 { 1396 int i, nibble; 1397 1398 /* 1399 * b0-b11 are valid bits, send sequence is inverse. 1400 * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1 1401 */ 1402 for (i = 0; i <= 8; i += 4) { 1403 nibble = (word >> i) & 0xf; 1404 if (alps_command_mode_send_nibble(psmouse, nibble)) 1405 return -1; 1406 } 1407 1408 return 0; 1409 } 1410 1411 static int alps_monitor_mode_write_reg(struct psmouse *psmouse, 1412 u16 addr, u16 value) 1413 { 1414 struct ps2dev *ps2dev = &psmouse->ps2dev; 1415 1416 /* 0x0A0 is the command to write the word */ 1417 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE) || 1418 alps_monitor_mode_send_word(psmouse, 0x0A0) || 1419 alps_monitor_mode_send_word(psmouse, addr) || 1420 alps_monitor_mode_send_word(psmouse, value) || 1421 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) 1422 return -1; 1423 1424 return 0; 1425 } 1426 1427 static int alps_monitor_mode(struct psmouse *psmouse, bool enable) 1428 { 1429 struct ps2dev *ps2dev = &psmouse->ps2dev; 1430 1431 if (enable) { 1432 /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */ 1433 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 1434 ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO) || 1435 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1436 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1437 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 1438 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 1439 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || 1440 ps2_command(ps2dev, NULL, PSMOUSE_CMD_GETINFO)) 1441 return -1; 1442 } else { 1443 /* EC to exit monitor mode */ 1444 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP)) 1445 return -1; 1446 } 1447 1448 return 0; 1449 } 1450 1451 static int alps_absolute_mode_v6(struct psmouse *psmouse) 1452 { 1453 u16 reg_val = 0x181; 1454 int ret = -1; 1455 1456 /* enter monitor mode, to write the register */ 1457 if (alps_monitor_mode(psmouse, true)) 1458 return -1; 1459 1460 ret = alps_monitor_mode_write_reg(psmouse, 0x000, reg_val); 1461 1462 if (alps_monitor_mode(psmouse, false)) 1463 ret = -1; 1464 1465 return ret; 1466 } 1467 1468 static int alps_get_status(struct psmouse *psmouse, char *param) 1469 { 1470 /* Get status: 0xF5 0xF5 0xF5 0xE9 */ 1471 if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_DISABLE, param)) 1472 return -1; 1473 1474 return 0; 1475 } 1476 1477 /* 1478 * Turn touchpad tapping on or off. The sequences are: 1479 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, 1480 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. 1481 * My guess that 0xE9 (GetInfo) is here as a sync point. 1482 * For models that also have stickpointer (DualPoints) its tapping 1483 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but 1484 * we don't fiddle with it. 1485 */ 1486 static int alps_tap_mode(struct psmouse *psmouse, int enable) 1487 { 1488 struct ps2dev *ps2dev = &psmouse->ps2dev; 1489 int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; 1490 unsigned char tap_arg = enable ? 0x0A : 0x00; 1491 unsigned char param[4]; 1492 1493 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || 1494 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1495 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || 1496 ps2_command(ps2dev, &tap_arg, cmd)) 1497 return -1; 1498 1499 if (alps_get_status(psmouse, param)) 1500 return -1; 1501 1502 return 0; 1503 } 1504 1505 /* 1506 * alps_poll() - poll the touchpad for current motion packet. 1507 * Used in resync. 1508 */ 1509 static int alps_poll(struct psmouse *psmouse) 1510 { 1511 struct alps_data *priv = psmouse->private; 1512 unsigned char buf[sizeof(psmouse->packet)]; 1513 bool poll_failed; 1514 1515 if (priv->flags & ALPS_PASS) 1516 alps_passthrough_mode_v2(psmouse, true); 1517 1518 poll_failed = ps2_command(&psmouse->ps2dev, buf, 1519 PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0; 1520 1521 if (priv->flags & ALPS_PASS) 1522 alps_passthrough_mode_v2(psmouse, false); 1523 1524 if (poll_failed || (buf[0] & priv->mask0) != priv->byte0) 1525 return -1; 1526 1527 if ((psmouse->badbyte & 0xc8) == 0x08) { 1528 /* 1529 * Poll the track stick ... 1530 */ 1531 if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8))) 1532 return -1; 1533 } 1534 1535 memcpy(psmouse->packet, buf, sizeof(buf)); 1536 return 0; 1537 } 1538 1539 static int alps_hw_init_v1_v2(struct psmouse *psmouse) 1540 { 1541 struct alps_data *priv = psmouse->private; 1542 1543 if ((priv->flags & ALPS_PASS) && 1544 alps_passthrough_mode_v2(psmouse, true)) { 1545 return -1; 1546 } 1547 1548 if (alps_tap_mode(psmouse, true)) { 1549 psmouse_warn(psmouse, "Failed to enable hardware tapping\n"); 1550 return -1; 1551 } 1552 1553 if (alps_absolute_mode_v1_v2(psmouse)) { 1554 psmouse_err(psmouse, "Failed to enable absolute mode\n"); 1555 return -1; 1556 } 1557 1558 if ((priv->flags & ALPS_PASS) && 1559 alps_passthrough_mode_v2(psmouse, false)) { 1560 return -1; 1561 } 1562 1563 /* ALPS needs stream mode, otherwise it won't report any data */ 1564 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) { 1565 psmouse_err(psmouse, "Failed to enable stream mode\n"); 1566 return -1; 1567 } 1568 1569 return 0; 1570 } 1571 1572 static int alps_hw_init_v6(struct psmouse *psmouse) 1573 { 1574 unsigned char param[2] = {0xC8, 0x14}; 1575 1576 /* Enter passthrough mode to let trackpoint enter 6byte raw mode */ 1577 if (alps_passthrough_mode_v2(psmouse, true)) 1578 return -1; 1579 1580 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 1581 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 1582 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 1583 ps2_command(&psmouse->ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 1584 ps2_command(&psmouse->ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 1585 return -1; 1586 1587 if (alps_passthrough_mode_v2(psmouse, false)) 1588 return -1; 1589 1590 if (alps_absolute_mode_v6(psmouse)) { 1591 psmouse_err(psmouse, "Failed to enable absolute mode\n"); 1592 return -1; 1593 } 1594 1595 return 0; 1596 } 1597 1598 /* 1599 * Enable or disable passthrough mode to the trackstick. 1600 */ 1601 static int alps_passthrough_mode_v3(struct psmouse *psmouse, 1602 int reg_base, bool enable) 1603 { 1604 int reg_val, ret = -1; 1605 1606 if (alps_enter_command_mode(psmouse)) 1607 return -1; 1608 1609 reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x0008); 1610 if (reg_val == -1) 1611 goto error; 1612 1613 if (enable) 1614 reg_val |= 0x01; 1615 else 1616 reg_val &= ~0x01; 1617 1618 ret = __alps_command_mode_write_reg(psmouse, reg_val); 1619 1620 error: 1621 if (alps_exit_command_mode(psmouse)) 1622 ret = -1; 1623 return ret; 1624 } 1625 1626 /* Must be in command mode when calling this function */ 1627 static int alps_absolute_mode_v3(struct psmouse *psmouse) 1628 { 1629 int reg_val; 1630 1631 reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 1632 if (reg_val == -1) 1633 return -1; 1634 1635 reg_val |= 0x06; 1636 if (__alps_command_mode_write_reg(psmouse, reg_val)) 1637 return -1; 1638 1639 return 0; 1640 } 1641 1642 static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base) 1643 { 1644 int ret = -EIO, reg_val; 1645 1646 if (alps_enter_command_mode(psmouse)) 1647 goto error; 1648 1649 reg_val = alps_command_mode_read_reg(psmouse, reg_base + 0x08); 1650 if (reg_val == -1) 1651 goto error; 1652 1653 /* bit 7: trackstick is present */ 1654 ret = reg_val & 0x80 ? 0 : -ENODEV; 1655 1656 error: 1657 alps_exit_command_mode(psmouse); 1658 return ret; 1659 } 1660 1661 static int alps_setup_trackstick_v3(struct psmouse *psmouse, int reg_base) 1662 { 1663 struct ps2dev *ps2dev = &psmouse->ps2dev; 1664 int ret = 0; 1665 unsigned char param[4]; 1666 1667 if (alps_passthrough_mode_v3(psmouse, reg_base, true)) 1668 return -EIO; 1669 1670 /* 1671 * E7 report for the trackstick 1672 * 1673 * There have been reports of failures to seem to trace back 1674 * to the above trackstick check failing. When these occur 1675 * this E7 report fails, so when that happens we continue 1676 * with the assumption that there isn't a trackstick after 1677 * all. 1678 */ 1679 if (alps_rpt_cmd(psmouse, 0, PSMOUSE_CMD_SETSCALE21, param)) { 1680 psmouse_warn(psmouse, "trackstick E7 report failed\n"); 1681 ret = -ENODEV; 1682 } else { 1683 psmouse_dbg(psmouse, "trackstick E7 report: %3ph\n", param); 1684 1685 /* 1686 * Not sure what this does, but it is absolutely 1687 * essential. Without it, the touchpad does not 1688 * work at all and the trackstick just emits normal 1689 * PS/2 packets. 1690 */ 1691 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 1692 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 1693 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || 1694 alps_command_mode_send_nibble(psmouse, 0x9) || 1695 alps_command_mode_send_nibble(psmouse, 0x4)) { 1696 psmouse_err(psmouse, 1697 "Error sending magic E6 sequence\n"); 1698 ret = -EIO; 1699 goto error; 1700 } 1701 1702 /* 1703 * This ensures the trackstick packets are in the format 1704 * supported by this driver. If bit 1 isn't set the packet 1705 * format is different. 1706 */ 1707 if (alps_enter_command_mode(psmouse) || 1708 alps_command_mode_write_reg(psmouse, 1709 reg_base + 0x08, 0x82) || 1710 alps_exit_command_mode(psmouse)) 1711 ret = -EIO; 1712 } 1713 1714 error: 1715 if (alps_passthrough_mode_v3(psmouse, reg_base, false)) 1716 ret = -EIO; 1717 1718 return ret; 1719 } 1720 1721 static int alps_hw_init_v3(struct psmouse *psmouse) 1722 { 1723 struct ps2dev *ps2dev = &psmouse->ps2dev; 1724 int reg_val; 1725 unsigned char param[4]; 1726 1727 reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE); 1728 if (reg_val == -EIO) 1729 goto error; 1730 1731 if (reg_val == 0 && 1732 alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO) 1733 goto error; 1734 1735 if (alps_enter_command_mode(psmouse) || 1736 alps_absolute_mode_v3(psmouse)) { 1737 psmouse_err(psmouse, "Failed to enter absolute mode\n"); 1738 goto error; 1739 } 1740 1741 reg_val = alps_command_mode_read_reg(psmouse, 0x0006); 1742 if (reg_val == -1) 1743 goto error; 1744 if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 1745 goto error; 1746 1747 reg_val = alps_command_mode_read_reg(psmouse, 0x0007); 1748 if (reg_val == -1) 1749 goto error; 1750 if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01)) 1751 goto error; 1752 1753 if (alps_command_mode_read_reg(psmouse, 0x0144) == -1) 1754 goto error; 1755 if (__alps_command_mode_write_reg(psmouse, 0x04)) 1756 goto error; 1757 1758 if (alps_command_mode_read_reg(psmouse, 0x0159) == -1) 1759 goto error; 1760 if (__alps_command_mode_write_reg(psmouse, 0x03)) 1761 goto error; 1762 1763 if (alps_command_mode_read_reg(psmouse, 0x0163) == -1) 1764 goto error; 1765 if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03)) 1766 goto error; 1767 1768 if (alps_command_mode_read_reg(psmouse, 0x0162) == -1) 1769 goto error; 1770 if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04)) 1771 goto error; 1772 1773 alps_exit_command_mode(psmouse); 1774 1775 /* Set rate and enable data reporting */ 1776 param[0] = 0x64; 1777 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 1778 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 1779 psmouse_err(psmouse, "Failed to enable data reporting\n"); 1780 return -1; 1781 } 1782 1783 return 0; 1784 1785 error: 1786 /* 1787 * Leaving the touchpad in command mode will essentially render 1788 * it unusable until the machine reboots, so exit it here just 1789 * to be safe 1790 */ 1791 alps_exit_command_mode(psmouse); 1792 return -1; 1793 } 1794 1795 static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch) 1796 { 1797 int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys; 1798 struct alps_data *priv = psmouse->private; 1799 1800 reg = alps_command_mode_read_reg(psmouse, reg_pitch); 1801 if (reg < 0) 1802 return reg; 1803 1804 x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1805 x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */ 1806 1807 y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */ 1808 y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */ 1809 1810 reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1); 1811 if (reg < 0) 1812 return reg; 1813 1814 x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */ 1815 x_electrode = 17 + x_electrode; 1816 1817 y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */ 1818 y_electrode = 13 + y_electrode; 1819 1820 x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */ 1821 y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */ 1822 1823 priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */ 1824 priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */ 1825 1826 psmouse_dbg(psmouse, 1827 "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n", 1828 x_pitch, y_pitch, x_electrode, y_electrode, 1829 x_phys / 10, y_phys / 10, priv->x_res, priv->y_res); 1830 1831 return 0; 1832 } 1833 1834 static int alps_hw_init_rushmore_v3(struct psmouse *psmouse) 1835 { 1836 struct alps_data *priv = psmouse->private; 1837 struct ps2dev *ps2dev = &psmouse->ps2dev; 1838 int reg_val, ret = -1; 1839 1840 if (priv->flags & ALPS_DUALPOINT) { 1841 reg_val = alps_setup_trackstick_v3(psmouse, 1842 ALPS_REG_BASE_RUSHMORE); 1843 if (reg_val == -EIO) 1844 goto error; 1845 if (reg_val == -ENODEV) 1846 priv->flags &= ~ALPS_DUALPOINT; 1847 } 1848 1849 if (alps_enter_command_mode(psmouse) || 1850 alps_command_mode_read_reg(psmouse, 0xc2d9) == -1 || 1851 alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00)) 1852 goto error; 1853 1854 if (alps_get_v3_v7_resolution(psmouse, 0xc2da)) 1855 goto error; 1856 1857 reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6); 1858 if (reg_val == -1) 1859 goto error; 1860 if (__alps_command_mode_write_reg(psmouse, reg_val & 0xfd)) 1861 goto error; 1862 1863 if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 1864 goto error; 1865 1866 /* enter absolute mode */ 1867 reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 1868 if (reg_val == -1) 1869 goto error; 1870 if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 1871 goto error; 1872 1873 alps_exit_command_mode(psmouse); 1874 return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 1875 1876 error: 1877 alps_exit_command_mode(psmouse); 1878 return ret; 1879 } 1880 1881 /* Must be in command mode when calling this function */ 1882 static int alps_absolute_mode_v4(struct psmouse *psmouse) 1883 { 1884 int reg_val; 1885 1886 reg_val = alps_command_mode_read_reg(psmouse, 0x0004); 1887 if (reg_val == -1) 1888 return -1; 1889 1890 reg_val |= 0x02; 1891 if (__alps_command_mode_write_reg(psmouse, reg_val)) 1892 return -1; 1893 1894 return 0; 1895 } 1896 1897 static int alps_hw_init_v4(struct psmouse *psmouse) 1898 { 1899 struct ps2dev *ps2dev = &psmouse->ps2dev; 1900 unsigned char param[4]; 1901 1902 if (alps_enter_command_mode(psmouse)) 1903 goto error; 1904 1905 if (alps_absolute_mode_v4(psmouse)) { 1906 psmouse_err(psmouse, "Failed to enter absolute mode\n"); 1907 goto error; 1908 } 1909 1910 if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c)) 1911 goto error; 1912 1913 if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03)) 1914 goto error; 1915 1916 if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03)) 1917 goto error; 1918 1919 if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15)) 1920 goto error; 1921 1922 if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01)) 1923 goto error; 1924 1925 if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03)) 1926 goto error; 1927 1928 if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03)) 1929 goto error; 1930 1931 if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03)) 1932 goto error; 1933 1934 alps_exit_command_mode(psmouse); 1935 1936 /* 1937 * This sequence changes the output from a 9-byte to an 1938 * 8-byte format. All the same data seems to be present, 1939 * just in a more compact format. 1940 */ 1941 param[0] = 0xc8; 1942 param[1] = 0x64; 1943 param[2] = 0x50; 1944 if (ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 1945 ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE) || 1946 ps2_command(ps2dev, ¶m[2], PSMOUSE_CMD_SETRATE) || 1947 ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) 1948 return -1; 1949 1950 /* Set rate and enable data reporting */ 1951 param[0] = 0x64; 1952 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) || 1953 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { 1954 psmouse_err(psmouse, "Failed to enable data reporting\n"); 1955 return -1; 1956 } 1957 1958 return 0; 1959 1960 error: 1961 /* 1962 * Leaving the touchpad in command mode will essentially render 1963 * it unusable until the machine reboots, so exit it here just 1964 * to be safe 1965 */ 1966 alps_exit_command_mode(psmouse); 1967 return -1; 1968 } 1969 1970 static int alps_dolphin_get_device_area(struct psmouse *psmouse, 1971 struct alps_data *priv) 1972 { 1973 struct ps2dev *ps2dev = &psmouse->ps2dev; 1974 unsigned char param[4] = {0}; 1975 int num_x_electrode, num_y_electrode; 1976 1977 if (alps_enter_command_mode(psmouse)) 1978 return -1; 1979 1980 param[0] = 0x0a; 1981 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) || 1982 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 1983 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETPOLL) || 1984 ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 1985 ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE)) 1986 return -1; 1987 1988 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) 1989 return -1; 1990 1991 /* 1992 * Dolphin's sensor line number is not fixed. It can be calculated 1993 * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET. 1994 * Further more, we can get device's x_max and y_max by multiplying 1995 * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE. 1996 * 1997 * e.g. When we get register's sensor_x = 11 & sensor_y = 8, 1998 * real sensor line number X = 11 + 8 = 19, and 1999 * real sensor line number Y = 8 + 1 = 9. 2000 * So, x_max = (19 - 1) * 64 = 1152, and 2001 * y_max = (9 - 1) * 64 = 512. 2002 */ 2003 num_x_electrode = DOLPHIN_PROFILE_XOFFSET + (param[2] & 0x0F); 2004 num_y_electrode = DOLPHIN_PROFILE_YOFFSET + ((param[2] >> 4) & 0x0F); 2005 priv->x_bits = num_x_electrode; 2006 priv->y_bits = num_y_electrode; 2007 priv->x_max = (num_x_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2008 priv->y_max = (num_y_electrode - 1) * DOLPHIN_COUNT_PER_ELECTRODE; 2009 2010 if (alps_exit_command_mode(psmouse)) 2011 return -1; 2012 2013 return 0; 2014 } 2015 2016 static int alps_hw_init_dolphin_v1(struct psmouse *psmouse) 2017 { 2018 struct ps2dev *ps2dev = &psmouse->ps2dev; 2019 unsigned char param[2]; 2020 2021 /* This is dolphin "v1" as empirically defined by florin9doi */ 2022 param[0] = 0x64; 2023 param[1] = 0x28; 2024 2025 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM) || 2026 ps2_command(ps2dev, ¶m[0], PSMOUSE_CMD_SETRATE) || 2027 ps2_command(ps2dev, ¶m[1], PSMOUSE_CMD_SETRATE)) 2028 return -1; 2029 2030 return 0; 2031 } 2032 2033 static int alps_hw_init_v7(struct psmouse *psmouse) 2034 { 2035 struct ps2dev *ps2dev = &psmouse->ps2dev; 2036 int reg_val, ret = -1; 2037 2038 if (alps_enter_command_mode(psmouse) || 2039 alps_command_mode_read_reg(psmouse, 0xc2d9) == -1) 2040 goto error; 2041 2042 if (alps_get_v3_v7_resolution(psmouse, 0xc397)) 2043 goto error; 2044 2045 if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64)) 2046 goto error; 2047 2048 reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4); 2049 if (reg_val == -1) 2050 goto error; 2051 if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02)) 2052 goto error; 2053 2054 alps_exit_command_mode(psmouse); 2055 return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 2056 2057 error: 2058 alps_exit_command_mode(psmouse); 2059 return ret; 2060 } 2061 2062 static void alps_set_defaults(struct alps_data *priv) 2063 { 2064 priv->byte0 = 0x8f; 2065 priv->mask0 = 0x8f; 2066 priv->flags = ALPS_DUALPOINT; 2067 2068 priv->x_max = 2000; 2069 priv->y_max = 1400; 2070 priv->x_bits = 15; 2071 priv->y_bits = 11; 2072 2073 switch (priv->proto_version) { 2074 case ALPS_PROTO_V1: 2075 case ALPS_PROTO_V2: 2076 priv->hw_init = alps_hw_init_v1_v2; 2077 priv->process_packet = alps_process_packet_v1_v2; 2078 priv->set_abs_params = alps_set_abs_params_st; 2079 priv->x_max = 1023; 2080 priv->y_max = 767; 2081 break; 2082 case ALPS_PROTO_V3: 2083 priv->hw_init = alps_hw_init_v3; 2084 priv->process_packet = alps_process_packet_v3; 2085 priv->set_abs_params = alps_set_abs_params_mt; 2086 priv->decode_fields = alps_decode_pinnacle; 2087 priv->nibble_commands = alps_v3_nibble_commands; 2088 priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2089 break; 2090 case ALPS_PROTO_V4: 2091 priv->hw_init = alps_hw_init_v4; 2092 priv->process_packet = alps_process_packet_v4; 2093 priv->set_abs_params = alps_set_abs_params_mt; 2094 priv->nibble_commands = alps_v4_nibble_commands; 2095 priv->addr_command = PSMOUSE_CMD_DISABLE; 2096 break; 2097 case ALPS_PROTO_V5: 2098 priv->hw_init = alps_hw_init_dolphin_v1; 2099 priv->process_packet = alps_process_touchpad_packet_v3_v5; 2100 priv->decode_fields = alps_decode_dolphin; 2101 priv->set_abs_params = alps_set_abs_params_mt; 2102 priv->nibble_commands = alps_v3_nibble_commands; 2103 priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2104 priv->byte0 = 0xc8; 2105 priv->mask0 = 0xd8; 2106 priv->flags = 0; 2107 priv->x_max = 1360; 2108 priv->y_max = 660; 2109 priv->x_bits = 23; 2110 priv->y_bits = 12; 2111 break; 2112 case ALPS_PROTO_V6: 2113 priv->hw_init = alps_hw_init_v6; 2114 priv->process_packet = alps_process_packet_v6; 2115 priv->set_abs_params = alps_set_abs_params_st; 2116 priv->nibble_commands = alps_v6_nibble_commands; 2117 priv->x_max = 2047; 2118 priv->y_max = 1535; 2119 break; 2120 case ALPS_PROTO_V7: 2121 priv->hw_init = alps_hw_init_v7; 2122 priv->process_packet = alps_process_packet_v7; 2123 priv->decode_fields = alps_decode_packet_v7; 2124 priv->set_abs_params = alps_set_abs_params_mt; 2125 priv->nibble_commands = alps_v3_nibble_commands; 2126 priv->addr_command = PSMOUSE_CMD_RESET_WRAP; 2127 priv->x_max = 0xfff; 2128 priv->y_max = 0x7ff; 2129 priv->byte0 = 0x48; 2130 priv->mask0 = 0x48; 2131 2132 if (priv->fw_ver[1] != 0xba) 2133 priv->flags |= ALPS_BUTTONPAD; 2134 break; 2135 } 2136 } 2137 2138 static int alps_match_table(struct psmouse *psmouse, struct alps_data *priv, 2139 unsigned char *e7, unsigned char *ec) 2140 { 2141 const struct alps_model_info *model; 2142 int i; 2143 2144 for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) { 2145 model = &alps_model_data[i]; 2146 2147 if (!memcmp(e7, model->signature, sizeof(model->signature)) && 2148 (!model->command_mode_resp || 2149 model->command_mode_resp == ec[2])) { 2150 2151 priv->proto_version = model->proto_version; 2152 alps_set_defaults(priv); 2153 2154 priv->flags = model->flags; 2155 priv->byte0 = model->byte0; 2156 priv->mask0 = model->mask0; 2157 2158 return 0; 2159 } 2160 } 2161 2162 return -EINVAL; 2163 } 2164 2165 static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) 2166 { 2167 unsigned char e6[4], e7[4], ec[4]; 2168 2169 /* 2170 * First try "E6 report". 2171 * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed. 2172 * The bits 0-2 of the first byte will be 1s if some buttons are 2173 * pressed. 2174 */ 2175 if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2176 PSMOUSE_CMD_SETSCALE11, e6)) 2177 return -EIO; 2178 2179 if ((e6[0] & 0xf8) != 0 || e6[1] != 0 || (e6[2] != 10 && e6[2] != 100)) 2180 return -EINVAL; 2181 2182 /* 2183 * Now get the "E7" and "EC" reports. These will uniquely identify 2184 * most ALPS touchpads. 2185 */ 2186 if (alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2187 PSMOUSE_CMD_SETSCALE21, e7) || 2188 alps_rpt_cmd(psmouse, PSMOUSE_CMD_SETRES, 2189 PSMOUSE_CMD_RESET_WRAP, ec) || 2190 alps_exit_command_mode(psmouse)) 2191 return -EIO; 2192 2193 /* Save the Firmware version */ 2194 memcpy(priv->fw_ver, ec, 3); 2195 2196 if (alps_match_table(psmouse, priv, e7, ec) == 0) { 2197 return 0; 2198 } else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 && 2199 ec[0] == 0x73 && (ec[1] == 0x01 || ec[1] == 0x02)) { 2200 priv->proto_version = ALPS_PROTO_V5; 2201 alps_set_defaults(priv); 2202 if (alps_dolphin_get_device_area(psmouse, priv)) 2203 return -EIO; 2204 else 2205 return 0; 2206 } else if (ec[0] == 0x88 && 2207 ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) { 2208 priv->proto_version = ALPS_PROTO_V7; 2209 alps_set_defaults(priv); 2210 2211 return 0; 2212 } else if (ec[0] == 0x88 && ec[1] == 0x08) { 2213 priv->proto_version = ALPS_PROTO_V3; 2214 alps_set_defaults(priv); 2215 2216 priv->hw_init = alps_hw_init_rushmore_v3; 2217 priv->decode_fields = alps_decode_rushmore; 2218 priv->x_bits = 16; 2219 priv->y_bits = 12; 2220 priv->flags |= ALPS_IS_RUSHMORE; 2221 2222 /* hack to make addr_command, nibble_command available */ 2223 psmouse->private = priv; 2224 2225 if (alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_RUSHMORE)) 2226 priv->flags &= ~ALPS_DUALPOINT; 2227 2228 return 0; 2229 } else if (ec[0] == 0x88 && ec[1] == 0x07 && 2230 ec[2] >= 0x90 && ec[2] <= 0x9d) { 2231 priv->proto_version = ALPS_PROTO_V3; 2232 alps_set_defaults(priv); 2233 2234 return 0; 2235 } 2236 2237 psmouse_info(psmouse, 2238 "Unknown ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); 2239 2240 return -EINVAL; 2241 } 2242 2243 static int alps_reconnect(struct psmouse *psmouse) 2244 { 2245 struct alps_data *priv = psmouse->private; 2246 2247 psmouse_reset(psmouse); 2248 2249 if (alps_identify(psmouse, priv) < 0) 2250 return -1; 2251 2252 return priv->hw_init(psmouse); 2253 } 2254 2255 static void alps_disconnect(struct psmouse *psmouse) 2256 { 2257 struct alps_data *priv = psmouse->private; 2258 2259 psmouse_reset(psmouse); 2260 del_timer_sync(&priv->timer); 2261 input_unregister_device(priv->dev2); 2262 kfree(priv); 2263 } 2264 2265 static void alps_set_abs_params_st(struct alps_data *priv, 2266 struct input_dev *dev1) 2267 { 2268 input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0); 2269 input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0); 2270 } 2271 2272 static void alps_set_abs_params_mt(struct alps_data *priv, 2273 struct input_dev *dev1) 2274 { 2275 input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); 2276 input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); 2277 2278 input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res); 2279 input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res); 2280 2281 input_mt_init_slots(dev1, MAX_TOUCHES, INPUT_MT_POINTER | 2282 INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK | INPUT_MT_SEMI_MT); 2283 2284 set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit); 2285 set_bit(BTN_TOOL_QUADTAP, dev1->keybit); 2286 2287 /* V7 is real multi-touch */ 2288 if (priv->proto_version == ALPS_PROTO_V7) 2289 clear_bit(INPUT_PROP_SEMI_MT, dev1->propbit); 2290 } 2291 2292 int alps_init(struct psmouse *psmouse) 2293 { 2294 struct alps_data *priv; 2295 struct input_dev *dev1 = psmouse->dev, *dev2; 2296 2297 priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL); 2298 dev2 = input_allocate_device(); 2299 if (!priv || !dev2) 2300 goto init_fail; 2301 2302 priv->dev2 = dev2; 2303 setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse); 2304 2305 psmouse->private = priv; 2306 2307 psmouse_reset(psmouse); 2308 2309 if (alps_identify(psmouse, priv) < 0) 2310 goto init_fail; 2311 2312 if (priv->hw_init(psmouse)) 2313 goto init_fail; 2314 2315 /* 2316 * Undo part of setup done for us by psmouse core since touchpad 2317 * is not a relative device. 2318 */ 2319 __clear_bit(EV_REL, dev1->evbit); 2320 __clear_bit(REL_X, dev1->relbit); 2321 __clear_bit(REL_Y, dev1->relbit); 2322 2323 /* 2324 * Now set up our capabilities. 2325 */ 2326 dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY); 2327 dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); 2328 dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER); 2329 dev1->keybit[BIT_WORD(BTN_LEFT)] |= 2330 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT); 2331 2332 dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS); 2333 2334 priv->set_abs_params(priv, dev1); 2335 /* No pressure on V7 */ 2336 if (priv->proto_version != ALPS_PROTO_V7) 2337 input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0); 2338 2339 if (priv->flags & ALPS_WHEEL) { 2340 dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL); 2341 dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL); 2342 } 2343 2344 if (priv->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) { 2345 dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD); 2346 dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK); 2347 } 2348 2349 if (priv->flags & ALPS_FOUR_BUTTONS) { 2350 dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0); 2351 dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1); 2352 dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2); 2353 dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3); 2354 } else if (priv->flags & ALPS_BUTTONPAD) { 2355 set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit); 2356 clear_bit(BTN_RIGHT, dev1->keybit); 2357 } else { 2358 dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE); 2359 } 2360 2361 snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys); 2362 dev2->phys = priv->phys; 2363 dev2->name = (priv->flags & ALPS_DUALPOINT) ? 2364 "DualPoint Stick" : "ALPS PS/2 Device"; 2365 dev2->id.bustype = BUS_I8042; 2366 dev2->id.vendor = 0x0002; 2367 dev2->id.product = PSMOUSE_ALPS; 2368 dev2->id.version = 0x0000; 2369 dev2->dev.parent = &psmouse->ps2dev.serio->dev; 2370 2371 dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 2372 dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); 2373 dev2->keybit[BIT_WORD(BTN_LEFT)] = 2374 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); 2375 2376 if (input_register_device(priv->dev2)) 2377 goto init_fail; 2378 2379 psmouse->protocol_handler = alps_process_byte; 2380 psmouse->poll = alps_poll; 2381 psmouse->disconnect = alps_disconnect; 2382 psmouse->reconnect = alps_reconnect; 2383 psmouse->pktsize = priv->proto_version == ALPS_PROTO_V4 ? 8 : 6; 2384 2385 /* We are having trouble resyncing ALPS touchpads so disable it for now */ 2386 psmouse->resync_time = 0; 2387 2388 return 0; 2389 2390 init_fail: 2391 psmouse_reset(psmouse); 2392 input_free_device(dev2); 2393 kfree(priv); 2394 psmouse->private = NULL; 2395 return -1; 2396 } 2397 2398 int alps_detect(struct psmouse *psmouse, bool set_properties) 2399 { 2400 struct alps_data dummy; 2401 2402 if (alps_identify(psmouse, &dummy) < 0) 2403 return -1; 2404 2405 if (set_properties) { 2406 psmouse->vendor = "ALPS"; 2407 psmouse->name = dummy.flags & ALPS_DUALPOINT ? 2408 "DualPoint TouchPad" : "GlidePoint"; 2409 psmouse->model = dummy.proto_version << 8; 2410 } 2411 return 0; 2412 } 2413 2414