Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Synaptics TouchPad PS/2 mouse driver |
| 3 | * |
| 4 | * 2003 Dmitry Torokhov <dtor@mail.ru> |
| 5 | * Added support for pass-through port. Special thanks to Peter Berg Larsen |
| 6 | * for explaining various Synaptics quirks. |
| 7 | * |
| 8 | * 2003 Peter Osterlund <petero2@telia.com> |
| 9 | * Ported to 2.5 input device infrastructure. |
| 10 | * |
| 11 | * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch> |
| 12 | * start merging tpconfig and gpm code to a xfree-input module |
| 13 | * adding some changes and extensions (ex. 3rd and 4th button) |
| 14 | * |
| 15 | * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu> |
| 16 | * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com> |
| 17 | * code for the special synaptics commands (from the tpconfig-source) |
| 18 | * |
| 19 | * This program is free software; you can redistribute it and/or modify it |
| 20 | * under the terms of the GNU General Public License version 2 as published by |
| 21 | * the Free Software Foundation. |
| 22 | * |
| 23 | * Trademarks are the property of their respective owners. |
| 24 | */ |
| 25 | |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/input.h> |
| 28 | #include <linux/serio.h> |
| 29 | #include <linux/libps2.h> |
| 30 | #include "psmouse.h" |
| 31 | #include "synaptics.h" |
| 32 | |
| 33 | /* |
| 34 | * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, |
| 35 | * section 2.3.2, which says that they should be valid regardless of the |
| 36 | * actual size of the sensor. |
| 37 | */ |
| 38 | #define XMIN_NOMINAL 1472 |
| 39 | #define XMAX_NOMINAL 5472 |
| 40 | #define YMIN_NOMINAL 1408 |
| 41 | #define YMAX_NOMINAL 4448 |
| 42 | |
| 43 | /***************************************************************************** |
| 44 | * Synaptics communications functions |
| 45 | ****************************************************************************/ |
| 46 | |
| 47 | /* |
| 48 | * Send a command to the synpatics touchpad by special commands |
| 49 | */ |
| 50 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
| 51 | { |
| 52 | if (psmouse_sliced_command(psmouse, c)) |
| 53 | return -1; |
| 54 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
| 55 | return -1; |
| 56 | return 0; |
| 57 | } |
| 58 | |
| 59 | /* |
| 60 | * Set the synaptics touchpad mode byte by special commands |
| 61 | */ |
| 62 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) |
| 63 | { |
| 64 | unsigned char param[1]; |
| 65 | |
| 66 | if (psmouse_sliced_command(psmouse, mode)) |
| 67 | return -1; |
| 68 | param[0] = SYN_PS_SET_MODE2; |
| 69 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) |
| 70 | return -1; |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | /* |
| 75 | * Read the model-id bytes from the touchpad |
| 76 | * see also SYN_MODEL_* macros |
| 77 | */ |
| 78 | static int synaptics_model_id(struct psmouse *psmouse) |
| 79 | { |
| 80 | struct synaptics_data *priv = psmouse->private; |
| 81 | unsigned char mi[3]; |
| 82 | |
| 83 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) |
| 84 | return -1; |
| 85 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; |
| 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | /* |
| 90 | * Read the capability-bits from the touchpad |
| 91 | * see also the SYN_CAP_* macros |
| 92 | */ |
| 93 | static int synaptics_capability(struct psmouse *psmouse) |
| 94 | { |
| 95 | struct synaptics_data *priv = psmouse->private; |
| 96 | unsigned char cap[3]; |
| 97 | |
| 98 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) |
| 99 | return -1; |
| 100 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; |
| 101 | priv->ext_cap = 0; |
| 102 | if (!SYN_CAP_VALID(priv->capabilities)) |
| 103 | return -1; |
| 104 | |
| 105 | /* |
| 106 | * Unless capExtended is set the rest of the flags should be ignored |
| 107 | */ |
| 108 | if (!SYN_CAP_EXTENDED(priv->capabilities)) |
| 109 | priv->capabilities = 0; |
| 110 | |
| 111 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { |
| 112 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { |
| 113 | printk(KERN_ERR "Synaptics claims to have extended capabilities," |
| 114 | " but I'm not able to read them."); |
| 115 | } else { |
| 116 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; |
| 117 | |
| 118 | /* |
| 119 | * if nExtBtn is greater than 8 it should be considered |
| 120 | * invalid and treated as 0 |
| 121 | */ |
| 122 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) |
| 123 | priv->ext_cap &= 0xff0fff; |
| 124 | } |
| 125 | } |
| 126 | return 0; |
| 127 | } |
| 128 | |
| 129 | /* |
| 130 | * Identify Touchpad |
| 131 | * See also the SYN_ID_* macros |
| 132 | */ |
| 133 | static int synaptics_identify(struct psmouse *psmouse) |
| 134 | { |
| 135 | struct synaptics_data *priv = psmouse->private; |
| 136 | unsigned char id[3]; |
| 137 | |
| 138 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) |
| 139 | return -1; |
| 140 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; |
| 141 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) |
| 142 | return 0; |
| 143 | return -1; |
| 144 | } |
| 145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | static int synaptics_query_hardware(struct psmouse *psmouse) |
| 147 | { |
| 148 | int retries = 0; |
| 149 | |
| 150 | while ((retries++ < 3) && psmouse_reset(psmouse)) |
| 151 | printk(KERN_ERR "synaptics reset failed\n"); |
| 152 | |
| 153 | if (synaptics_identify(psmouse)) |
| 154 | return -1; |
| 155 | if (synaptics_model_id(psmouse)) |
| 156 | return -1; |
| 157 | if (synaptics_capability(psmouse)) |
| 158 | return -1; |
| 159 | |
| 160 | return 0; |
| 161 | } |
| 162 | |
| 163 | static int synaptics_set_absolute_mode(struct psmouse *psmouse) |
| 164 | { |
| 165 | struct synaptics_data *priv = psmouse->private; |
| 166 | |
| 167 | priv->mode = SYN_BIT_ABSOLUTE_MODE; |
| 168 | if (SYN_ID_MAJOR(priv->identity) >= 4) |
| 169 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
| 170 | if (SYN_CAP_EXTENDED(priv->capabilities)) |
| 171 | priv->mode |= SYN_BIT_W_MODE; |
| 172 | |
| 173 | if (synaptics_mode_cmd(psmouse, priv->mode)) |
| 174 | return -1; |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) |
| 180 | { |
| 181 | struct synaptics_data *priv = psmouse->private; |
| 182 | |
| 183 | if (rate >= 80) { |
| 184 | priv->mode |= SYN_BIT_HIGH_RATE; |
| 185 | psmouse->rate = 80; |
| 186 | } else { |
| 187 | priv->mode &= ~SYN_BIT_HIGH_RATE; |
| 188 | psmouse->rate = 40; |
| 189 | } |
| 190 | |
| 191 | synaptics_mode_cmd(psmouse, priv->mode); |
| 192 | } |
| 193 | |
| 194 | /***************************************************************************** |
| 195 | * Synaptics pass-through PS/2 port support |
| 196 | ****************************************************************************/ |
| 197 | static int synaptics_pt_write(struct serio *serio, unsigned char c) |
| 198 | { |
| 199 | struct psmouse *parent = serio_get_drvdata(serio->parent); |
| 200 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ |
| 201 | |
| 202 | if (psmouse_sliced_command(parent, c)) |
| 203 | return -1; |
| 204 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) |
| 205 | return -1; |
| 206 | return 0; |
| 207 | } |
| 208 | |
| 209 | static inline int synaptics_is_pt_packet(unsigned char *buf) |
| 210 | { |
| 211 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; |
| 212 | } |
| 213 | |
| 214 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) |
| 215 | { |
| 216 | struct psmouse *child = serio_get_drvdata(ptport); |
| 217 | |
| 218 | if (child && child->state == PSMOUSE_ACTIVATED) { |
| 219 | serio_interrupt(ptport, packet[1], 0, NULL); |
| 220 | serio_interrupt(ptport, packet[4], 0, NULL); |
| 221 | serio_interrupt(ptport, packet[5], 0, NULL); |
Sergey Vlasov | 33fdfa9 | 2005-07-24 00:53:32 -0500 | [diff] [blame] | 222 | if (child->pktsize == 4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | serio_interrupt(ptport, packet[2], 0, NULL); |
| 224 | } else |
| 225 | serio_interrupt(ptport, packet[1], 0, NULL); |
| 226 | } |
| 227 | |
| 228 | static void synaptics_pt_activate(struct psmouse *psmouse) |
| 229 | { |
| 230 | struct serio *ptport = psmouse->ps2dev.serio->child; |
| 231 | struct psmouse *child = serio_get_drvdata(ptport); |
| 232 | struct synaptics_data *priv = psmouse->private; |
| 233 | |
| 234 | /* adjust the touchpad to child's choice of protocol */ |
| 235 | if (child) { |
Sergey Vlasov | 33fdfa9 | 2005-07-24 00:53:32 -0500 | [diff] [blame] | 236 | if (child->pktsize == 4) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
| 238 | else |
| 239 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; |
| 240 | |
| 241 | if (synaptics_mode_cmd(psmouse, priv->mode)) |
| 242 | printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | static void synaptics_pt_create(struct psmouse *psmouse) |
| 247 | { |
| 248 | struct serio *serio; |
| 249 | |
Eric Sesterhenn | b39787a | 2006-03-14 00:09:16 -0500 | [diff] [blame] | 250 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | if (!serio) { |
| 252 | printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); |
| 253 | return; |
| 254 | } |
| 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | serio->id.type = SERIO_PS_PSTHRU; |
| 257 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); |
| 258 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); |
| 259 | serio->write = synaptics_pt_write; |
| 260 | serio->parent = psmouse->ps2dev.serio; |
| 261 | |
| 262 | psmouse->pt_activate = synaptics_pt_activate; |
| 263 | |
| 264 | printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); |
| 265 | serio_register_port(serio); |
| 266 | } |
| 267 | |
| 268 | /***************************************************************************** |
| 269 | * Functions to interpret the absolute mode packets |
| 270 | ****************************************************************************/ |
| 271 | |
| 272 | static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) |
| 273 | { |
| 274 | memset(hw, 0, sizeof(struct synaptics_hw_state)); |
| 275 | |
| 276 | if (SYN_MODEL_NEWABS(priv->model_id)) { |
| 277 | hw->x = (((buf[3] & 0x10) << 8) | |
| 278 | ((buf[1] & 0x0f) << 8) | |
| 279 | buf[4]); |
| 280 | hw->y = (((buf[3] & 0x20) << 7) | |
| 281 | ((buf[1] & 0xf0) << 4) | |
| 282 | buf[5]); |
| 283 | |
| 284 | hw->z = buf[2]; |
| 285 | hw->w = (((buf[0] & 0x30) >> 2) | |
| 286 | ((buf[0] & 0x04) >> 1) | |
| 287 | ((buf[3] & 0x04) >> 2)); |
| 288 | |
| 289 | hw->left = (buf[0] & 0x01) ? 1 : 0; |
| 290 | hw->right = (buf[0] & 0x02) ? 1 : 0; |
| 291 | |
| 292 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { |
| 293 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
| 294 | if (hw->w == 2) |
| 295 | hw->scroll = (signed char)(buf[1]); |
| 296 | } |
| 297 | |
| 298 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { |
| 299 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
| 300 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; |
| 301 | } |
| 302 | |
| 303 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && |
| 304 | ((buf[0] ^ buf[3]) & 0x02)) { |
| 305 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { |
| 306 | default: |
| 307 | /* |
| 308 | * if nExtBtn is greater than 8 it should be |
| 309 | * considered invalid and treated as 0 |
| 310 | */ |
| 311 | break; |
| 312 | case 8: |
| 313 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; |
| 314 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; |
| 315 | case 6: |
| 316 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; |
| 317 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; |
| 318 | case 4: |
| 319 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; |
| 320 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; |
| 321 | case 2: |
| 322 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; |
| 323 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; |
| 324 | } |
| 325 | } |
| 326 | } else { |
| 327 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); |
| 328 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); |
| 329 | |
| 330 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); |
| 331 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); |
| 332 | |
| 333 | hw->left = (buf[0] & 0x01) ? 1 : 0; |
| 334 | hw->right = (buf[0] & 0x02) ? 1 : 0; |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | /* |
| 339 | * called for each full received packet from the touchpad |
| 340 | */ |
| 341 | static void synaptics_process_packet(struct psmouse *psmouse) |
| 342 | { |
Dmitry Torokhov | 2e5b636 | 2005-09-15 02:01:44 -0500 | [diff] [blame] | 343 | struct input_dev *dev = psmouse->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | struct synaptics_data *priv = psmouse->private; |
| 345 | struct synaptics_hw_state hw; |
| 346 | int num_fingers; |
| 347 | int finger_width; |
| 348 | int i; |
| 349 | |
| 350 | synaptics_parse_hw_state(psmouse->packet, priv, &hw); |
| 351 | |
| 352 | if (hw.scroll) { |
| 353 | priv->scroll += hw.scroll; |
| 354 | |
| 355 | while (priv->scroll >= 4) { |
| 356 | input_report_key(dev, BTN_BACK, !hw.down); |
| 357 | input_sync(dev); |
| 358 | input_report_key(dev, BTN_BACK, hw.down); |
| 359 | input_sync(dev); |
| 360 | priv->scroll -= 4; |
| 361 | } |
| 362 | while (priv->scroll <= -4) { |
| 363 | input_report_key(dev, BTN_FORWARD, !hw.up); |
| 364 | input_sync(dev); |
| 365 | input_report_key(dev, BTN_FORWARD, hw.up); |
| 366 | input_sync(dev); |
| 367 | priv->scroll += 4; |
| 368 | } |
| 369 | return; |
| 370 | } |
| 371 | |
| 372 | if (hw.z > 0) { |
| 373 | num_fingers = 1; |
| 374 | finger_width = 5; |
| 375 | if (SYN_CAP_EXTENDED(priv->capabilities)) { |
| 376 | switch (hw.w) { |
| 377 | case 0 ... 1: |
| 378 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) |
| 379 | num_fingers = hw.w + 2; |
| 380 | break; |
| 381 | case 2: |
| 382 | if (SYN_MODEL_PEN(priv->model_id)) |
| 383 | ; /* Nothing, treat a pen as a single finger */ |
| 384 | break; |
| 385 | case 4 ... 15: |
| 386 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
| 387 | finger_width = hw.w; |
| 388 | break; |
| 389 | } |
| 390 | } |
| 391 | } else { |
| 392 | num_fingers = 0; |
| 393 | finger_width = 0; |
| 394 | } |
| 395 | |
| 396 | /* Post events |
| 397 | * BTN_TOUCH has to be first as mousedev relies on it when doing |
| 398 | * absolute -> relative conversion |
| 399 | */ |
| 400 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); |
| 401 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); |
| 402 | |
| 403 | if (hw.z > 0) { |
| 404 | input_report_abs(dev, ABS_X, hw.x); |
| 405 | input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); |
| 406 | } |
| 407 | input_report_abs(dev, ABS_PRESSURE, hw.z); |
| 408 | |
| 409 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); |
| 410 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
| 411 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); |
| 412 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); |
| 413 | |
| 414 | input_report_key(dev, BTN_LEFT, hw.left); |
| 415 | input_report_key(dev, BTN_RIGHT, hw.right); |
| 416 | |
| 417 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
| 418 | input_report_key(dev, BTN_MIDDLE, hw.middle); |
| 419 | |
| 420 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { |
| 421 | input_report_key(dev, BTN_FORWARD, hw.up); |
| 422 | input_report_key(dev, BTN_BACK, hw.down); |
| 423 | } |
| 424 | |
| 425 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) |
| 426 | input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); |
| 427 | |
| 428 | input_sync(dev); |
| 429 | } |
| 430 | |
| 431 | static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) |
| 432 | { |
| 433 | static unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
| 434 | static unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; |
| 435 | static unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; |
| 436 | static unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; |
| 437 | static unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; |
| 438 | |
| 439 | if (idx < 0 || idx > 4) |
| 440 | return 0; |
| 441 | |
| 442 | switch (pkt_type) { |
| 443 | case SYN_NEWABS: |
| 444 | case SYN_NEWABS_RELAXED: |
| 445 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; |
| 446 | |
| 447 | case SYN_NEWABS_STRICT: |
| 448 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; |
| 449 | |
| 450 | case SYN_OLDABS: |
| 451 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; |
| 452 | |
| 453 | default: |
| 454 | printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); |
| 455 | return 0; |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) |
| 460 | { |
| 461 | int i; |
| 462 | |
| 463 | for (i = 0; i < 5; i++) |
| 464 | if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { |
| 465 | printk(KERN_INFO "synaptics: using relaxed packet validation\n"); |
| 466 | return SYN_NEWABS_RELAXED; |
| 467 | } |
| 468 | |
| 469 | return SYN_NEWABS_STRICT; |
| 470 | } |
| 471 | |
| 472 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs) |
| 473 | { |
Dmitry Torokhov | 2e5b636 | 2005-09-15 02:01:44 -0500 | [diff] [blame] | 474 | struct input_dev *dev = psmouse->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | struct synaptics_data *priv = psmouse->private; |
| 476 | |
| 477 | input_regs(dev, regs); |
| 478 | |
| 479 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
| 480 | if (unlikely(priv->pkt_type == SYN_NEWABS)) |
| 481 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); |
| 482 | |
| 483 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { |
| 484 | if (psmouse->ps2dev.serio->child) |
| 485 | synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); |
| 486 | } else |
| 487 | synaptics_process_packet(psmouse); |
| 488 | |
| 489 | return PSMOUSE_FULL_PACKET; |
| 490 | } |
| 491 | |
| 492 | return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? |
| 493 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
| 494 | } |
| 495 | |
| 496 | /***************************************************************************** |
| 497 | * Driver initialization/cleanup functions |
| 498 | ****************************************************************************/ |
| 499 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) |
| 500 | { |
| 501 | int i; |
| 502 | |
| 503 | set_bit(EV_ABS, dev->evbit); |
| 504 | input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0); |
| 505 | input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0); |
| 506 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
| 507 | set_bit(ABS_TOOL_WIDTH, dev->absbit); |
| 508 | |
| 509 | set_bit(EV_KEY, dev->evbit); |
| 510 | set_bit(BTN_TOUCH, dev->keybit); |
| 511 | set_bit(BTN_TOOL_FINGER, dev->keybit); |
| 512 | set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
| 513 | set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); |
| 514 | |
| 515 | set_bit(BTN_LEFT, dev->keybit); |
| 516 | set_bit(BTN_RIGHT, dev->keybit); |
| 517 | |
| 518 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
| 519 | set_bit(BTN_MIDDLE, dev->keybit); |
| 520 | |
| 521 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || |
| 522 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { |
| 523 | set_bit(BTN_FORWARD, dev->keybit); |
| 524 | set_bit(BTN_BACK, dev->keybit); |
| 525 | } |
| 526 | |
| 527 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) |
| 528 | set_bit(BTN_0 + i, dev->keybit); |
| 529 | |
| 530 | clear_bit(EV_REL, dev->evbit); |
| 531 | clear_bit(REL_X, dev->relbit); |
| 532 | clear_bit(REL_Y, dev->relbit); |
| 533 | } |
| 534 | |
| 535 | void synaptics_reset(struct psmouse *psmouse) |
| 536 | { |
| 537 | /* reset touchpad back to relative mode, gestures enabled */ |
| 538 | synaptics_mode_cmd(psmouse, 0); |
| 539 | } |
| 540 | |
| 541 | static void synaptics_disconnect(struct psmouse *psmouse) |
| 542 | { |
| 543 | synaptics_reset(psmouse); |
| 544 | kfree(psmouse->private); |
| 545 | psmouse->private = NULL; |
| 546 | } |
| 547 | |
| 548 | static int synaptics_reconnect(struct psmouse *psmouse) |
| 549 | { |
| 550 | struct synaptics_data *priv = psmouse->private; |
| 551 | struct synaptics_data old_priv = *priv; |
| 552 | |
| 553 | if (synaptics_detect(psmouse, 0)) |
| 554 | return -1; |
| 555 | |
| 556 | if (synaptics_query_hardware(psmouse)) { |
| 557 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); |
| 558 | return -1; |
| 559 | } |
| 560 | |
| 561 | if (old_priv.identity != priv->identity || |
| 562 | old_priv.model_id != priv->model_id || |
| 563 | old_priv.capabilities != priv->capabilities || |
| 564 | old_priv.ext_cap != priv->ext_cap) |
| 565 | return -1; |
| 566 | |
| 567 | if (synaptics_set_absolute_mode(psmouse)) { |
| 568 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); |
| 569 | return -1; |
| 570 | } |
| 571 | |
| 572 | return 0; |
| 573 | } |
| 574 | |
| 575 | int synaptics_detect(struct psmouse *psmouse, int set_properties) |
| 576 | { |
| 577 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
| 578 | unsigned char param[4]; |
| 579 | |
| 580 | param[0] = 0; |
| 581 | |
| 582 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
| 583 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
| 584 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
| 585 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
| 586 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); |
| 587 | |
| 588 | if (param[1] != 0x47) |
| 589 | return -1; |
| 590 | |
| 591 | if (set_properties) { |
| 592 | psmouse->vendor = "Synaptics"; |
| 593 | psmouse->name = "TouchPad"; |
| 594 | } |
| 595 | |
| 596 | return 0; |
| 597 | } |
| 598 | |
| 599 | #if defined(__i386__) |
| 600 | #include <linux/dmi.h> |
| 601 | static struct dmi_system_id toshiba_dmi_table[] = { |
| 602 | { |
| 603 | .ident = "Toshiba Satellite", |
| 604 | .matches = { |
| 605 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
Richard Thrippleton | 53a2670 | 2006-04-02 00:10:18 -0500 | [diff] [blame] | 606 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | }, |
| 608 | }, |
Simon Horman | 9ba5eaa | 2005-07-11 01:07:20 -0500 | [diff] [blame] | 609 | { |
| 610 | .ident = "Toshiba Dynabook", |
| 611 | .matches = { |
| 612 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
Richard Thrippleton | 53a2670 | 2006-04-02 00:10:18 -0500 | [diff] [blame] | 613 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
| 614 | }, |
| 615 | }, |
| 616 | { |
| 617 | .ident = "Toshiba Portege M300", |
| 618 | .matches = { |
| 619 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
| 620 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), |
Simon Horman | 9ba5eaa | 2005-07-11 01:07:20 -0500 | [diff] [blame] | 621 | }, |
| 622 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | { } |
| 624 | }; |
| 625 | #endif |
| 626 | |
| 627 | int synaptics_init(struct psmouse *psmouse) |
| 628 | { |
| 629 | struct synaptics_data *priv; |
| 630 | |
Eric Sesterhenn | b39787a | 2006-03-14 00:09:16 -0500 | [diff] [blame] | 631 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | if (!priv) |
| 633 | return -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | |
| 635 | if (synaptics_query_hardware(psmouse)) { |
| 636 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); |
| 637 | goto init_fail; |
| 638 | } |
| 639 | |
| 640 | if (synaptics_set_absolute_mode(psmouse)) { |
| 641 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); |
| 642 | goto init_fail; |
| 643 | } |
| 644 | |
| 645 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; |
| 646 | |
Dmitry Torokhov | 409b750 | 2005-05-28 02:12:18 -0500 | [diff] [blame] | 647 | printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n", |
| 648 | SYN_ID_MODEL(priv->identity), |
| 649 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), |
| 650 | priv->model_id, priv->capabilities, priv->ext_cap); |
| 651 | |
Dmitry Torokhov | 2e5b636 | 2005-09-15 02:01:44 -0500 | [diff] [blame] | 652 | set_input_params(psmouse->dev, priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
| 654 | psmouse->protocol_handler = synaptics_process_byte; |
| 655 | psmouse->set_rate = synaptics_set_rate; |
| 656 | psmouse->disconnect = synaptics_disconnect; |
| 657 | psmouse->reconnect = synaptics_reconnect; |
| 658 | psmouse->pktsize = 6; |
Dmitry Torokhov | f0d5c6f4 | 2006-01-14 00:27:37 -0500 | [diff] [blame] | 659 | /* Synaptics can usually stay in sync without extra help */ |
| 660 | psmouse->resync_time = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 661 | |
| 662 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) |
| 663 | synaptics_pt_create(psmouse); |
| 664 | |
| 665 | #if defined(__i386__) |
| 666 | /* |
| 667 | * Toshiba's KBC seems to have trouble handling data from |
| 668 | * Synaptics as full rate, switch to lower rate which is roughly |
| 669 | * thye same as rate of standard PS/2 mouse. |
| 670 | */ |
| 671 | if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) { |
Simon Horman | 9ba5eaa | 2005-07-11 01:07:20 -0500 | [diff] [blame] | 672 | printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", |
| 673 | dmi_get_system_info(DMI_PRODUCT_NAME)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | psmouse->rate = 40; |
| 675 | } |
| 676 | #endif |
| 677 | |
| 678 | return 0; |
| 679 | |
| 680 | init_fail: |
| 681 | kfree(priv); |
| 682 | return -1; |
| 683 | } |
| 684 | |
| 685 | |