drivers/input/mouse/elan_i2c_i2c.c

   1 /*
   2  * Elan I2C/SMBus Touchpad driver - I2C interface
   3  *
   4  * Copyright (c) 2013 ELAN Microelectronics Corp.
   5  *
   6  * Author: 林政維 (Duson Lin) <dusonlin@emc.com.tw>
   7  *
   8  * Based on cyapa driver:
   9  * copyright (c) 2011-2012 Cypress Semiconductor, Inc.
  10  * copyright (c) 2011-2012 Google, Inc.
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License version 2 as published
  14  * by the Free Software Foundation.
  15  *
  16  * Trademarks are the property of their respective owners.
  17  */
  18
  19 #include <linux/completion.h>
  20 #include <linux/delay.h>
  21 #include <linux/i2c.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/jiffies.h>
  24 #include <linux/kernel.h>
  25 #include <linux/sched.h>
  26 #include <asm/unaligned.h>
  27
  28 #include "elan_i2c.h"
  29
  30 /* Elan i2c commands */
  31 #define ETP_I2C_RESET                   0x0100
  32 #define ETP_I2C_WAKE_UP                 0x0800
  33 #define ETP_I2C_SLEEP                   0x0801
  34 #define ETP_I2C_DESC_CMD                0x0001
  35 #define ETP_I2C_REPORT_DESC_CMD         0x0002
  36 #define ETP_I2C_STAND_CMD               0x0005
  37 #define ETP_I2C_PATTERN_CMD             0x0100
  38 #define ETP_I2C_UNIQUEID_CMD            0x0101
  39 #define ETP_I2C_FW_VERSION_CMD          0x0102
  40 #define ETP_I2C_IC_TYPE_CMD             0x0103
  41 #define ETP_I2C_OSM_VERSION_CMD         0x0103
  42 #define ETP_I2C_NSM_VERSION_CMD         0x0104
  43 #define ETP_I2C_XY_TRACENUM_CMD         0x0105
  44 #define ETP_I2C_MAX_X_AXIS_CMD          0x0106
  45 #define ETP_I2C_MAX_Y_AXIS_CMD          0x0107
  46 #define ETP_I2C_RESOLUTION_CMD          0x0108
  47 #define ETP_I2C_PRESSURE_CMD            0x010A
  48 #define ETP_I2C_IAP_VERSION_CMD         0x0110
  49 #define ETP_I2C_SET_CMD                 0x0300
  50 #define ETP_I2C_POWER_CMD               0x0307
  51 #define ETP_I2C_FW_CHECKSUM_CMD         0x030F
  52 #define ETP_I2C_IAP_CTRL_CMD            0x0310
  53 #define ETP_I2C_IAP_CMD                 0x0311
  54 #define ETP_I2C_IAP_RESET_CMD           0x0314
  55 #define ETP_I2C_IAP_CHECKSUM_CMD        0x0315
  56 #define ETP_I2C_CALIBRATE_CMD           0x0316
  57 #define ETP_I2C_MAX_BASELINE_CMD        0x0317
  58 #define ETP_I2C_MIN_BASELINE_CMD        0x0318
  59
  60 #define ETP_I2C_REPORT_LEN              34
  61 #define ETP_I2C_DESC_LENGTH             30
  62 #define ETP_I2C_REPORT_DESC_LENGTH      158
  63 #define ETP_I2C_INF_LENGTH              2
  64 #define ETP_I2C_IAP_PASSWORD            0x1EA5
  65 #define ETP_I2C_IAP_RESET               0xF0F0
  66 #define ETP_I2C_MAIN_MODE_ON            (1 << 9)
  67 #define ETP_I2C_IAP_REG_L               0x01
  68 #define ETP_I2C_IAP_REG_H               0x06
  69
  70 static int elan_i2c_read_block(struct i2c_client *client,
  71                                u16 reg, u8 *val, u16 len)
  72 {
  73         __le16 buf[] = {
  74                 cpu_to_le16(reg),
  75         };
  76         struct i2c_msg msgs[] = {
  77                 {
  78                         .addr = client->addr,
  79                         .flags = client->flags & I2C_M_TEN,
  80                         .len = sizeof(buf),
  81                         .buf = (u8 *)buf,
  82                 },
  83                 {
  84                         .addr = client->addr,
  85                         .flags = (client->flags & I2C_M_TEN) | I2C_M_RD,
  86                         .len = len,
  87                         .buf = val,
  88                 }
  89         };
  90         int ret;
  91
  92         ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
  93         return ret == ARRAY_SIZE(msgs) ? 0 : (ret < 0 ? ret : -EIO);
  94 }
  95
  96 static int elan_i2c_read_cmd(struct i2c_client *client, u16 reg, u8 *val)
  97 {
  98         int retval;
  99
 100         retval = elan_i2c_read_block(client, reg, val, ETP_I2C_INF_LENGTH);
 101         if (retval < 0) {
 102                 dev_err(&client->dev, "reading cmd (0x%04x) fail.\n", reg);
 103                 return retval;
 104         }
 105
 106         return 0;
 107 }
 108
 109 static int elan_i2c_write_cmd(struct i2c_client *client, u16 reg, u16 cmd)
 110 {
 111         __le16 buf[] = {
 112                 cpu_to_le16(reg),
 113                 cpu_to_le16(cmd),
 114         };
 115         struct i2c_msg msg = {
 116                 .addr = client->addr,
 117                 .flags = client->flags & I2C_M_TEN,
 118                 .len = sizeof(buf),
 119                 .buf = (u8 *)buf,
 120         };
 121         int ret;
 122
 123         ret = i2c_transfer(client->adapter, &msg, 1);
 124         if (ret != 1) {
 125                 if (ret >= 0)
 126                         ret = -EIO;
 127                 dev_err(&client->dev, "writing cmd (0x%04x) failed: %d\n",
 128                         reg, ret);
 129                 return ret;
 130         }
 131
 132         return 0;
 133 }
 134
 135 static int elan_i2c_initialize(struct i2c_client *client)
 136 {
 137         struct device *dev = &client->dev;
 138         int error;
 139         u8 val[256];
 140
 141         error = elan_i2c_write_cmd(client, ETP_I2C_STAND_CMD, ETP_I2C_RESET);
 142         if (error) {
 143                 dev_err(dev, "device reset failed: %d\n", error);
 144                 return error;
 145         }
 146
 147         /* Wait for the device to reset */
 148         msleep(100);
 149
 150         /* get reset acknowledgement 0000 */
 151         error = i2c_master_recv(client, val, ETP_I2C_INF_LENGTH);
 152         if (error < 0) {
 153                 dev_err(dev, "failed to read reset response: %d\n", error);
 154                 return error;
 155         }
 156
 157         error = elan_i2c_read_block(client, ETP_I2C_DESC_CMD,
 158                                     val, ETP_I2C_DESC_LENGTH);
 159         if (error) {
 160                 dev_err(dev, "cannot get device descriptor: %d\n", error);
 161                 return error;
 162         }
 163
 164         error = elan_i2c_read_block(client, ETP_I2C_REPORT_DESC_CMD,
 165                                     val, ETP_I2C_REPORT_DESC_LENGTH);
 166         if (error) {
 167                 dev_err(dev, "fetching report descriptor failed.: %d\n", error);
 168                 return error;
 169         }
 170
 171         return 0;
 172 }
 173
 174 static int elan_i2c_sleep_control(struct i2c_client *client, bool sleep)
 175 {
 176         return elan_i2c_write_cmd(client, ETP_I2C_STAND_CMD,
 177                                   sleep ? ETP_I2C_SLEEP : ETP_I2C_WAKE_UP);
 178 }
 179
 180 static int elan_i2c_power_control(struct i2c_client *client, bool enable)
 181 {
 182         u8 val[2];
 183         u16 reg;
 184         int error;
 185
 186         error = elan_i2c_read_cmd(client, ETP_I2C_POWER_CMD, val);
 187         if (error) {
 188                 dev_err(&client->dev,
 189                         "failed to read current power state: %d\n",
 190                         error);
 191                 return error;
 192         }
 193
 194         reg = le16_to_cpup((__le16 *)val);
 195         if (enable)
 196                 reg &= ~ETP_DISABLE_POWER;
 197         else
 198                 reg |= ETP_DISABLE_POWER;
 199
 200         error = elan_i2c_write_cmd(client, ETP_I2C_POWER_CMD, reg);
 201         if (error) {
 202                 dev_err(&client->dev,
 203                         "failed to write current power state: %d\n",
 204                         error);
 205                 return error;
 206         }
 207
 208         return 0;
 209 }
 210
 211 static int elan_i2c_set_mode(struct i2c_client *client, u8 mode)
 212 {
 213         return elan_i2c_write_cmd(client, ETP_I2C_SET_CMD, mode);
 214 }
 215
 216
 217 static int elan_i2c_calibrate(struct i2c_client *client)
 218 {
 219         return elan_i2c_write_cmd(client, ETP_I2C_CALIBRATE_CMD, 1);
 220 }
 221
 222 static int elan_i2c_calibrate_result(struct i2c_client *client, u8 *val)
 223 {
 224         return elan_i2c_read_block(client, ETP_I2C_CALIBRATE_CMD, val, 1);
 225 }
 226
 227 static int elan_i2c_get_baseline_data(struct i2c_client *client,
 228                                       bool max_baseline, u8 *value)
 229 {
 230         int error;
 231         u8 val[3];
 232
 233         error = elan_i2c_read_cmd(client,
 234                                   max_baseline ? ETP_I2C_MAX_BASELINE_CMD :
 235                                                  ETP_I2C_MIN_BASELINE_CMD,
 236                                   val);
 237         if (error)
 238                 return error;
 239
 240         *value = le16_to_cpup((__le16 *)val);
 241
 242         return 0;
 243 }
 244
 245 static int elan_i2c_get_pattern(struct i2c_client *client, u8 *pattern)
 246 {
 247         int error;
 248         u8 val[3];
 249
 250         error = elan_i2c_read_cmd(client, ETP_I2C_PATTERN_CMD, val);
 251         if (error) {
 252                 dev_err(&client->dev, "failed to get pattern: %d\n", error);
 253                 return error;
 254         }
 255         *pattern = val[1];
 256
 257         return 0;
 258 }
 259
 260 static int elan_i2c_get_version(struct i2c_client *client,
 261                                 bool iap, u8 *version)
 262 {
 263         int error;
 264         u8 pattern_ver;
 265         u8 val[3];
 266
 267         error = elan_i2c_get_pattern(client, &pattern_ver);
 268         if (error) {
 269                 dev_err(&client->dev, "failed to get pattern version\n");
 270                 return error;
 271         }
 272
 273         error = elan_i2c_read_cmd(client,
 274                                   iap ? ETP_I2C_IAP_VERSION_CMD :
 275                                         ETP_I2C_FW_VERSION_CMD,
 276                                   val);
 277         if (error) {
 278                 dev_err(&client->dev, "failed to get %s version: %d\n",
 279                         iap ? "IAP" : "FW", error);
 280                 return error;
 281         }
 282
 283         if (pattern_ver == 0x01)
 284                 *version = iap ? val[1] : val[0];
 285         else
 286                 *version = val[0];
 287         return 0;
 288 }
 289
 290 static int elan_i2c_get_sm_version(struct i2c_client *client,
 291                                    u16 *ic_type, u8 *version,
 292                                    u8 *clickpad)
 293 {
 294         int error;
 295         u8 pattern_ver;
 296         u8 val[3];
 297
 298         error = elan_i2c_get_pattern(client, &pattern_ver);
 299         if (error) {
 300                 dev_err(&client->dev, "failed to get pattern version\n");
 301                 return error;
 302         }
 303
 304         if (pattern_ver == 0x01) {
 305                 error = elan_i2c_read_cmd(client, ETP_I2C_IC_TYPE_CMD, val);
 306                 if (error) {
 307                         dev_err(&client->dev, "failed to get ic type: %d\n",
 308                                 error);
 309                         return error;
 310                 }
 311                 *ic_type = be16_to_cpup((__be16 *)val);
 312
 313                 error = elan_i2c_read_cmd(client, ETP_I2C_NSM_VERSION_CMD,
 314                                           val);
 315                 if (error) {
 316                         dev_err(&client->dev, "failed to get SM version: %d\n",
 317                                 error);
 318                         return error;
 319                 }
 320                 *version = val[1];
 321                 *clickpad = val[0] & 0x10;
 322         } else {
 323                 error = elan_i2c_read_cmd(client, ETP_I2C_OSM_VERSION_CMD, val);
 324                 if (error) {
 325                         dev_err(&client->dev, "failed to get SM version: %d\n",
 326                                 error);
 327                         return error;
 328                 }
 329                 *version = val[0];
 330                 *ic_type = val[1];
 331
 332                 error = elan_i2c_read_cmd(client, ETP_I2C_NSM_VERSION_CMD,
 333                                           val);
 334                 if (error) {
 335                         dev_err(&client->dev, "failed to get SM version: %d\n",
 336                                 error);
 337                         return error;
 338                 }
 339                 *clickpad = val[0] & 0x10;
 340         }
 341
 342         return 0;
 343 }
 344
 345 static int elan_i2c_get_product_id(struct i2c_client *client, u16 *id)
 346 {
 347         int error;
 348         u8 val[3];
 349
 350         error = elan_i2c_read_cmd(client, ETP_I2C_UNIQUEID_CMD, val);
 351         if (error) {
 352                 dev_err(&client->dev, "failed to get product ID: %d\n", error);
 353                 return error;
 354         }
 355
 356         *id = le16_to_cpup((__le16 *)val);
 357         return 0;
 358 }
 359
 360 static int elan_i2c_get_checksum(struct i2c_client *client,
 361                                  bool iap, u16 *csum)
 362 {
 363         int error;
 364         u8 val[3];
 365
 366         error = elan_i2c_read_cmd(client,
 367                                   iap ? ETP_I2C_IAP_CHECKSUM_CMD :
 368                                         ETP_I2C_FW_CHECKSUM_CMD,
 369                                   val);
 370         if (error) {
 371                 dev_err(&client->dev, "failed to get %s checksum: %d\n",
 372                         iap ? "IAP" : "FW", error);
 373                 return error;
 374         }
 375
 376         *csum = le16_to_cpup((__le16 *)val);
 377         return 0;
 378 }
 379
 380 static int elan_i2c_get_max(struct i2c_client *client,
 381                             unsigned int *max_x, unsigned int *max_y)
 382 {
 383         int error;
 384         u8 val[3];
 385
 386         error = elan_i2c_read_cmd(client, ETP_I2C_MAX_X_AXIS_CMD, val);
 387         if (error) {
 388                 dev_err(&client->dev, "failed to get X dimension: %d\n", error);
 389                 return error;
 390         }
 391
 392         *max_x = le16_to_cpup((__le16 *)val) & 0x0fff;
 393
 394         error = elan_i2c_read_cmd(client, ETP_I2C_MAX_Y_AXIS_CMD, val);
 395         if (error) {
 396                 dev_err(&client->dev, "failed to get Y dimension: %d\n", error);
 397                 return error;
 398         }
 399
 400         *max_y = le16_to_cpup((__le16 *)val) & 0x0fff;
 401
 402         return 0;
 403 }
 404
 405 static int elan_i2c_get_resolution(struct i2c_client *client,
 406                                    u8 *hw_res_x, u8 *hw_res_y)
 407 {
 408         int error;
 409         u8 val[3];
 410
 411         error = elan_i2c_read_cmd(client, ETP_I2C_RESOLUTION_CMD, val);
 412         if (error) {
 413                 dev_err(&client->dev, "failed to get resolution: %d\n", error);
 414                 return error;
 415         }
 416
 417         *hw_res_x = val[0];
 418         *hw_res_y = val[1];
 419
 420         return 0;
 421 }
 422
 423 static int elan_i2c_get_num_traces(struct i2c_client *client,
 424                                    unsigned int *x_traces,
 425                                    unsigned int *y_traces)
 426 {
 427         int error;
 428         u8 val[3];
 429
 430         error = elan_i2c_read_cmd(client, ETP_I2C_XY_TRACENUM_CMD, val);
 431         if (error) {
 432                 dev_err(&client->dev, "failed to get trace info: %d\n", error);
 433                 return error;
 434         }
 435
 436         *x_traces = val[0];
 437         *y_traces = val[1];
 438
 439         return 0;
 440 }
 441
 442 static int elan_i2c_get_pressure_adjustment(struct i2c_client *client,
 443                                             int *adjustment)
 444 {
 445         int error;
 446         u8 val[3];
 447
 448         error = elan_i2c_read_cmd(client, ETP_I2C_PRESSURE_CMD, val);
 449         if (error) {
 450                 dev_err(&client->dev, "failed to get pressure format: %d\n",
 451                         error);
 452                 return error;
 453         }
 454
 455         if ((val[0] >> 4) & 0x1)
 456                 *adjustment = 0;
 457         else
 458                 *adjustment = ETP_PRESSURE_OFFSET;
 459
 460         return 0;
 461 }
 462
 463 static int elan_i2c_iap_get_mode(struct i2c_client *client, enum tp_mode *mode)
 464 {
 465         int error;
 466         u16 constant;
 467         u8 val[3];
 468
 469         error = elan_i2c_read_cmd(client, ETP_I2C_IAP_CTRL_CMD, val);
 470         if (error) {
 471                 dev_err(&client->dev,
 472                         "failed to read iap control register: %d\n",
 473                         error);
 474                 return error;
 475         }
 476
 477         constant = le16_to_cpup((__le16 *)val);
 478         dev_dbg(&client->dev, "iap control reg: 0x%04x.\n", constant);
 479
 480         *mode = (constant & ETP_I2C_MAIN_MODE_ON) ? MAIN_MODE : IAP_MODE;
 481
 482         return 0;
 483 }
 484
 485 static int elan_i2c_iap_reset(struct i2c_client *client)
 486 {
 487         int error;
 488
 489         error = elan_i2c_write_cmd(client, ETP_I2C_IAP_RESET_CMD,
 490                                    ETP_I2C_IAP_RESET);
 491         if (error) {
 492                 dev_err(&client->dev, "cannot reset IC: %d\n", error);
 493                 return error;
 494         }
 495
 496         return 0;
 497 }
 498
 499 static int elan_i2c_set_flash_key(struct i2c_client *client)
 500 {
 501         int error;
 502
 503         error = elan_i2c_write_cmd(client, ETP_I2C_IAP_CMD,
 504                                    ETP_I2C_IAP_PASSWORD);
 505         if (error) {
 506                 dev_err(&client->dev, "cannot set flash key: %d\n", error);
 507                 return error;
 508         }
 509
 510         return 0;
 511 }
 512
 513 static int elan_i2c_prepare_fw_update(struct i2c_client *client)
 514 {
 515         struct device *dev = &client->dev;
 516         int error;
 517         enum tp_mode mode;
 518         u8 val[3];
 519         u16 password;
 520
 521         /* Get FW in which mode (IAP_MODE/MAIN_MODE)  */
 522         error = elan_i2c_iap_get_mode(client, &mode);
 523         if (error)
 524                 return error;
 525
 526         if (mode == IAP_MODE) {
 527                 /* Reset IC */
 528                 error = elan_i2c_iap_reset(client);
 529                 if (error)
 530                         return error;
 531
 532                 msleep(30);
 533         }
 534
 535         /* Set flash key*/
 536         error = elan_i2c_set_flash_key(client);
 537         if (error)
 538                 return error;
 539
 540         /* Wait for F/W IAP initialization */
 541         msleep(mode == MAIN_MODE ? 100 : 30);
 542
 543         /* Check if we are in IAP mode or not */
 544         error = elan_i2c_iap_get_mode(client, &mode);
 545         if (error)
 546                 return error;
 547
 548         if (mode == MAIN_MODE) {
 549                 dev_err(dev, "wrong mode: %d\n", mode);
 550                 return -EIO;
 551         }
 552
 553         /* Set flash key again */
 554         error = elan_i2c_set_flash_key(client);
 555         if (error)
 556                 return error;
 557
 558         /* Wait for F/W IAP initialization */
 559         msleep(30);
 560
 561         /* read back to check we actually enabled successfully. */
 562         error = elan_i2c_read_cmd(client, ETP_I2C_IAP_CMD, val);
 563         if (error) {
 564                 dev_err(dev, "cannot read iap password: %d\n",
 565                         error);
 566                 return error;
 567         }
 568
 569         password = le16_to_cpup((__le16 *)val);
 570         if (password != ETP_I2C_IAP_PASSWORD) {
 571                 dev_err(dev, "wrong iap password: 0x%X\n", password);
 572                 return -EIO;
 573         }
 574
 575         return 0;
 576 }
 577
 578 static int elan_i2c_write_fw_block(struct i2c_client *client,
 579                                    const u8 *page, u16 checksum, int idx)
 580 {
 581         struct device *dev = &client->dev;
 582         u8 page_store[ETP_FW_PAGE_SIZE + 4];
 583         u8 val[3];
 584         u16 result;
 585         int ret, error;
 586
 587         page_store[0] = ETP_I2C_IAP_REG_L;
 588         page_store[1] = ETP_I2C_IAP_REG_H;
 589         memcpy(&page_store[2], page, ETP_FW_PAGE_SIZE);
 590         /* recode checksum at last two bytes */
 591         put_unaligned_le16(checksum, &page_store[ETP_FW_PAGE_SIZE + 2]);
 592
 593         ret = i2c_master_send(client, page_store, sizeof(page_store));
 594         if (ret != sizeof(page_store)) {
 595                 error = ret < 0 ? ret : -EIO;
 596                 dev_err(dev, "Failed to write page %d: %d\n", idx, error);
 597                 return error;
 598         }
 599
 600         /* Wait for F/W to update one page ROM data. */
 601         msleep(35);
 602
 603         error = elan_i2c_read_cmd(client, ETP_I2C_IAP_CTRL_CMD, val);
 604         if (error) {
 605                 dev_err(dev, "Failed to read IAP write result: %d\n", error);
 606                 return error;
 607         }
 608
 609         result = le16_to_cpup((__le16 *)val);
 610         if (result & (ETP_FW_IAP_PAGE_ERR | ETP_FW_IAP_INTF_ERR)) {
 611                 dev_err(dev, "IAP reports failed write: %04hx\n",
 612                         result);
 613                 return -EIO;
 614         }
 615
 616         return 0;
 617 }
 618
 619 static int elan_i2c_finish_fw_update(struct i2c_client *client,
 620                                      struct completion *completion)
 621 {
 622         struct device *dev = &client->dev;
 623         int error;
 624         int len;
 625         u8 buffer[ETP_I2C_REPORT_LEN];
 626
 627         len = i2c_master_recv(client, buffer, ETP_I2C_REPORT_LEN);
 628         if (len != ETP_I2C_REPORT_LEN) {
 629                 error = len < 0 ? len : -EIO;
 630                 dev_warn(dev, "failed to read I2C data after FW WDT reset: %d (%d)\n",
 631                         error, len);
 632         }
 633
 634         reinit_completion(completion);
 635         enable_irq(client->irq);
 636
 637         error = elan_i2c_write_cmd(client, ETP_I2C_STAND_CMD, ETP_I2C_RESET);
 638         if (error) {
 639                 dev_err(dev, "device reset failed: %d\n", error);
 640         } else if (!wait_for_completion_timeout(completion,
 641                                                 msecs_to_jiffies(300))) {
 642                 dev_err(dev, "timeout waiting for device reset\n");
 643                 error = -ETIMEDOUT;
 644         }
 645
 646         disable_irq(client->irq);
 647
 648         if (error)
 649                 return error;
 650
 651         len = i2c_master_recv(client, buffer, ETP_I2C_INF_LENGTH);
 652         if (len != ETP_I2C_INF_LENGTH) {
 653                 error = len < 0 ? len : -EIO;
 654                 dev_err(dev, "failed to read INT signal: %d (%d)\n",
 655                         error, len);
 656                 return error;
 657         }
 658
 659         return 0;
 660 }
 661
 662 static int elan_i2c_get_report(struct i2c_client *client, u8 *report)
 663 {
 664         int len;
 665
 666         len = i2c_master_recv(client, report, ETP_I2C_REPORT_LEN);
 667         if (len < 0) {
 668                 dev_err(&client->dev, "failed to read report data: %d\n", len);
 669                 return len;
 670         }
 671
 672         if (len != ETP_I2C_REPORT_LEN) {
 673                 dev_err(&client->dev,
 674                         "wrong report length (%d vs %d expected)\n",
 675                         len, ETP_I2C_REPORT_LEN);
 676                 return -EIO;
 677         }
 678
 679         return 0;
 680 }
 681
 682 const struct elan_transport_ops elan_i2c_ops = {
 683         .initialize             = elan_i2c_initialize,
 684         .sleep_control          = elan_i2c_sleep_control,
 685         .power_control          = elan_i2c_power_control,
 686         .set_mode               = elan_i2c_set_mode,
 687
 688         .calibrate              = elan_i2c_calibrate,
 689         .calibrate_result       = elan_i2c_calibrate_result,
 690
 691         .get_baseline_data      = elan_i2c_get_baseline_data,
 692
 693         .get_version            = elan_i2c_get_version,
 694         .get_sm_version         = elan_i2c_get_sm_version,
 695         .get_product_id         = elan_i2c_get_product_id,
 696         .get_checksum           = elan_i2c_get_checksum,
 697         .get_pressure_adjustment = elan_i2c_get_pressure_adjustment,
 698
 699         .get_max                = elan_i2c_get_max,
 700         .get_resolution         = elan_i2c_get_resolution,
 701         .get_num_traces         = elan_i2c_get_num_traces,
 702
 703         .iap_get_mode           = elan_i2c_iap_get_mode,
 704         .iap_reset              = elan_i2c_iap_reset,
 705
 706         .prepare_fw_update      = elan_i2c_prepare_fw_update,
 707         .write_fw_block         = elan_i2c_write_fw_block,
 708         .finish_fw_update       = elan_i2c_finish_fw_update,
 709
 710         .get_pattern            = elan_i2c_get_pattern,
 711
 712         .get_report             = elan_i2c_get_report,
 713 };