1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Copyright (c) 2011-2015 Synaptics Incorporated 4 * Copyright (c) 2011 Unixphere 5 */ 6 7#include <linux/kernel.h> 8#include <linux/delay.h> 9#include <linux/device.h> 10#include <linux/input.h> 11#include <linux/input/mt.h> 12#include <linux/rmi.h> 13#include <linux/slab.h> 14#include <linux/of.h> 15#include "rmi_driver.h" 16#include "rmi_2d_sensor.h" 17 18#define F11_MAX_NUM_OF_FINGERS 10 19#define F11_MAX_NUM_OF_TOUCH_SHAPES 16 20 21#define FINGER_STATE_MASK 0x03 22 23#define F11_CTRL_SENSOR_MAX_X_POS_OFFSET 6 24#define F11_CTRL_SENSOR_MAX_Y_POS_OFFSET 8 25 26#define DEFAULT_XY_MAX 9999 27#define DEFAULT_MAX_ABS_MT_PRESSURE 255 28#define DEFAULT_MAX_ABS_MT_TOUCH 15 29#define DEFAULT_MAX_ABS_MT_ORIENTATION 1 30#define DEFAULT_MIN_ABS_MT_TRACKING_ID 1 31#define DEFAULT_MAX_ABS_MT_TRACKING_ID 10 32 33/** A note about RMI4 F11 register structure. 34 * 35 * The properties for 36 * a given sensor are described by its query registers. The number of query 37 * registers and the layout of their contents are described by the F11 device 38 * queries as well as the sensor query information. 39 * 40 * Similarly, each sensor has control registers that govern its behavior. The 41 * size and layout of the control registers for a given sensor can be determined 42 * by parsing that sensors query registers. 43 * 44 * And in a likewise fashion, each sensor has data registers where it reports 45 * its touch data and other interesting stuff. The size and layout of a 46 * sensors data registers must be determined by parsing its query registers. 47 * 48 * The short story is that we need to read and parse a lot of query 49 * registers in order to determine the attributes of a sensor. Then 50 * we need to use that data to compute the size of the control and data 51 * registers for sensor. 52 * 53 * The end result is that we have a number of structs that aren't used to 54 * directly generate the input events, but their size, location and contents 55 * are critical to determining where the data we are interested in lives. 56 * 57 * At this time, the driver does not yet comprehend all possible F11 58 * configuration options, but it should be sufficient to cover 99% of RMI4 F11 59 * devices currently in the field. 60 */ 61 62/* maximum ABS_MT_POSITION displacement (in mm) */ 63#define DMAX 10 64 65/** 66 * @rezero - writing this to the F11 command register will cause the sensor to 67 * calibrate to the current capacitive state. 68 */ 69#define RMI_F11_REZERO 0x01 70 71#define RMI_F11_HAS_QUERY9 (1 << 3) 72#define RMI_F11_HAS_QUERY11 (1 << 4) 73#define RMI_F11_HAS_QUERY12 (1 << 5) 74#define RMI_F11_HAS_QUERY27 (1 << 6) 75#define RMI_F11_HAS_QUERY28 (1 << 7) 76 77/** Defs for Query 1 */ 78 79#define RMI_F11_NR_FINGERS_MASK 0x07 80#define RMI_F11_HAS_REL (1 << 3) 81#define RMI_F11_HAS_ABS (1 << 4) 82#define RMI_F11_HAS_GESTURES (1 << 5) 83#define RMI_F11_HAS_SENSITIVITY_ADJ (1 << 6) 84#define RMI_F11_CONFIGURABLE (1 << 7) 85 86/** Defs for Query 2, 3, and 4. */ 87#define RMI_F11_NR_ELECTRODES_MASK 0x7F 88 89/** Defs for Query 5 */ 90 91#define RMI_F11_ABS_DATA_SIZE_MASK 0x03 92#define RMI_F11_HAS_ANCHORED_FINGER (1 << 2) 93#define RMI_F11_HAS_ADJ_HYST (1 << 3) 94#define RMI_F11_HAS_DRIBBLE (1 << 4) 95#define RMI_F11_HAS_BENDING_CORRECTION (1 << 5) 96#define RMI_F11_HAS_LARGE_OBJECT_SUPPRESSION (1 << 6) 97#define RMI_F11_HAS_JITTER_FILTER (1 << 7) 98 99/** Defs for Query 7 */ 100#define RMI_F11_HAS_SINGLE_TAP (1 << 0) 101#define RMI_F11_HAS_TAP_AND_HOLD (1 << 1) 102#define RMI_F11_HAS_DOUBLE_TAP (1 << 2) 103#define RMI_F11_HAS_EARLY_TAP (1 << 3) 104#define RMI_F11_HAS_FLICK (1 << 4) 105#define RMI_F11_HAS_PRESS (1 << 5) 106#define RMI_F11_HAS_PINCH (1 << 6) 107#define RMI_F11_HAS_CHIRAL (1 << 7) 108 109/** Defs for Query 8 */ 110#define RMI_F11_HAS_PALM_DET (1 << 0) 111#define RMI_F11_HAS_ROTATE (1 << 1) 112#define RMI_F11_HAS_TOUCH_SHAPES (1 << 2) 113#define RMI_F11_HAS_SCROLL_ZONES (1 << 3) 114#define RMI_F11_HAS_INDIVIDUAL_SCROLL_ZONES (1 << 4) 115#define RMI_F11_HAS_MF_SCROLL (1 << 5) 116#define RMI_F11_HAS_MF_EDGE_MOTION (1 << 6) 117#define RMI_F11_HAS_MF_SCROLL_INERTIA (1 << 7) 118 119/** Defs for Query 9. */ 120#define RMI_F11_HAS_PEN (1 << 0) 121#define RMI_F11_HAS_PROXIMITY (1 << 1) 122#define RMI_F11_HAS_PALM_DET_SENSITIVITY (1 << 2) 123#define RMI_F11_HAS_SUPPRESS_ON_PALM_DETECT (1 << 3) 124#define RMI_F11_HAS_TWO_PEN_THRESHOLDS (1 << 4) 125#define RMI_F11_HAS_CONTACT_GEOMETRY (1 << 5) 126#define RMI_F11_HAS_PEN_HOVER_DISCRIMINATION (1 << 6) 127#define RMI_F11_HAS_PEN_FILTERS (1 << 7) 128 129/** Defs for Query 10. */ 130#define RMI_F11_NR_TOUCH_SHAPES_MASK 0x1F 131 132/** Defs for Query 11 */ 133 134#define RMI_F11_HAS_Z_TUNING (1 << 0) 135#define RMI_F11_HAS_ALGORITHM_SELECTION (1 << 1) 136#define RMI_F11_HAS_W_TUNING (1 << 2) 137#define RMI_F11_HAS_PITCH_INFO (1 << 3) 138#define RMI_F11_HAS_FINGER_SIZE (1 << 4) 139#define RMI_F11_HAS_SEGMENTATION_AGGRESSIVENESS (1 << 5) 140#define RMI_F11_HAS_XY_CLIP (1 << 6) 141#define RMI_F11_HAS_DRUMMING_FILTER (1 << 7) 142 143/** Defs for Query 12. */ 144 145#define RMI_F11_HAS_GAPLESS_FINGER (1 << 0) 146#define RMI_F11_HAS_GAPLESS_FINGER_TUNING (1 << 1) 147#define RMI_F11_HAS_8BIT_W (1 << 2) 148#define RMI_F11_HAS_ADJUSTABLE_MAPPING (1 << 3) 149#define RMI_F11_HAS_INFO2 (1 << 4) 150#define RMI_F11_HAS_PHYSICAL_PROPS (1 << 5) 151#define RMI_F11_HAS_FINGER_LIMIT (1 << 6) 152#define RMI_F11_HAS_LINEAR_COEFF (1 << 7) 153 154/** Defs for Query 13. */ 155 156#define RMI_F11_JITTER_WINDOW_MASK 0x1F 157#define RMI_F11_JITTER_FILTER_MASK 0x60 158#define RMI_F11_JITTER_FILTER_SHIFT 5 159 160/** Defs for Query 14. */ 161#define RMI_F11_LIGHT_CONTROL_MASK 0x03 162#define RMI_F11_IS_CLEAR (1 << 2) 163#define RMI_F11_CLICKPAD_PROPS_MASK 0x18 164#define RMI_F11_CLICKPAD_PROPS_SHIFT 3 165#define RMI_F11_MOUSE_BUTTONS_MASK 0x60 166#define RMI_F11_MOUSE_BUTTONS_SHIFT 5 167#define RMI_F11_HAS_ADVANCED_GESTURES (1 << 7) 168 169#define RMI_F11_QUERY_SIZE 4 170#define RMI_F11_QUERY_GESTURE_SIZE 2 171 172#define F11_LIGHT_CTL_NONE 0x00 173#define F11_LUXPAD 0x01 174#define F11_DUAL_MODE 0x02 175 176#define F11_NOT_CLICKPAD 0x00 177#define F11_HINGED_CLICKPAD 0x01 178#define F11_UNIFORM_CLICKPAD 0x02 179 180/** 181 * Query registers 1 through 4 are always present. 182 * 183 * @nr_fingers - describes the maximum number of fingers the 2-D sensor 184 * supports. 185 * @has_rel - the sensor supports relative motion reporting. 186 * @has_abs - the sensor supports absolute poition reporting. 187 * @has_gestures - the sensor supports gesture reporting. 188 * @has_sensitivity_adjust - the sensor supports a global sensitivity 189 * adjustment. 190 * @configurable - the sensor supports various configuration options. 191 * @num_of_x_electrodes - the maximum number of electrodes the 2-D sensor 192 * supports on the X axis. 193 * @num_of_y_electrodes - the maximum number of electrodes the 2-D sensor 194 * supports on the Y axis. 195 * @max_electrodes - the total number of X and Y electrodes that may be 196 * configured. 197 * 198 * Query 5 is present if the has_abs bit is set. 199 * 200 * @abs_data_size - describes the format of data reported by the absolute 201 * data source. Only one format (the kind used here) is supported at this 202 * time. 203 * @has_anchored_finger - then the sensor supports the high-precision second 204 * finger tracking provided by the manual tracking and motion sensitivity 205 * options. 206 * @has_adjust_hyst - the difference between the finger release threshold and 207 * the touch threshold. 208 * @has_dribble - the sensor supports the generation of dribble interrupts, 209 * which may be enabled or disabled with the dribble control bit. 210 * @has_bending_correction - Bending related data registers 28 and 36, and 211 * control register 52..57 are present. 212 * @has_large_object_suppression - control register 58 and data register 28 213 * exist. 214 * @has_jitter_filter - query 13 and control 73..76 exist. 215 * 216 * Gesture information queries 7 and 8 are present if has_gestures bit is set. 217 * 218 * @has_single_tap - a basic single-tap gesture is supported. 219 * @has_tap_n_hold - tap-and-hold gesture is supported. 220 * @has_double_tap - double-tap gesture is supported. 221 * @has_early_tap - early tap is supported and reported as soon as the finger 222 * lifts for any tap event that could be interpreted as either a single tap 223 * or as the first tap of a double-tap or tap-and-hold gesture. 224 * @has_flick - flick detection is supported. 225 * @has_press - press gesture reporting is supported. 226 * @has_pinch - pinch gesture detection is supported. 227 * @has_palm_det - the 2-D sensor notifies the host whenever a large conductive 228 * object such as a palm or a cheek touches the 2-D sensor. 229 * @has_rotate - rotation gesture detection is supported. 230 * @has_touch_shapes - TouchShapes are supported. A TouchShape is a fixed 231 * rectangular area on the sensor that behaves like a capacitive button. 232 * @has_scroll_zones - scrolling areas near the sensor edges are supported. 233 * @has_individual_scroll_zones - if 1, then 4 scroll zones are supported; 234 * if 0, then only two are supported. 235 * @has_mf_scroll - the multifinger_scrolling bit will be set when 236 * more than one finger is involved in a scrolling action. 237 * 238 * Convenience for checking bytes in the gesture info registers. This is done 239 * often enough that we put it here to declutter the conditionals 240 * 241 * @query7_nonzero - true if none of the query 7 bits are set 242 * @query8_nonzero - true if none of the query 8 bits are set 243 * 244 * Query 9 is present if the has_query9 is set. 245 * 246 * @has_pen - detection of a stylus is supported and registers F11_2D_Ctrl20 247 * and F11_2D_Ctrl21 exist. 248 * @has_proximity - detection of fingers near the sensor is supported and 249 * registers F11_2D_Ctrl22 through F11_2D_Ctrl26 exist. 250 * @has_palm_det_sensitivity - the sensor supports the palm detect sensitivity 251 * feature and register F11_2D_Ctrl27 exists. 252 * @has_two_pen_thresholds - is has_pen is also set, then F11_2D_Ctrl35 exists. 253 * @has_contact_geometry - the sensor supports the use of contact geometry to 254 * map absolute X and Y target positions and registers F11_2D_Data18 255 * through F11_2D_Data27 exist. 256 * 257 * Touch shape info (query 10) is present if has_touch_shapes is set. 258 * 259 * @nr_touch_shapes - the total number of touch shapes supported. 260 * 261 * Query 11 is present if the has_query11 bit is set in query 0. 262 * 263 * @has_z_tuning - if set, the sensor supports Z tuning and registers 264 * F11_2D_Ctrl29 through F11_2D_Ctrl33 exist. 265 * @has_algorithm_selection - controls choice of noise suppression algorithm 266 * @has_w_tuning - the sensor supports Wx and Wy scaling and registers 267 * F11_2D_Ctrl36 through F11_2D_Ctrl39 exist. 268 * @has_pitch_info - the X and Y pitches of the sensor electrodes can be 269 * configured and registers F11_2D_Ctrl40 and F11_2D_Ctrl41 exist. 270 * @has_finger_size - the default finger width settings for the 271 * sensor can be configured and registers F11_2D_Ctrl42 through F11_2D_Ctrl44 272 * exist. 273 * @has_segmentation_aggressiveness - the sensor’s ability to distinguish 274 * multiple objects close together can be configured and register F11_2D_Ctrl45 275 * exists. 276 * @has_XY_clip - the inactive outside borders of the sensor can be 277 * configured and registers F11_2D_Ctrl46 through F11_2D_Ctrl49 exist. 278 * @has_drumming_filter - the sensor can be configured to distinguish 279 * between a fast flick and a quick drumming movement and registers 280 * F11_2D_Ctrl50 and F11_2D_Ctrl51 exist. 281 * 282 * Query 12 is present if hasQuery12 bit is set. 283 * 284 * @has_gapless_finger - control registers relating to gapless finger are 285 * present. 286 * @has_gapless_finger_tuning - additional control and data registers relating 287 * to gapless finger are present. 288 * @has_8bit_w - larger W value reporting is supported. 289 * @has_adjustable_mapping - TBD 290 * @has_info2 - the general info query14 is present 291 * @has_physical_props - additional queries describing the physical properties 292 * of the sensor are present. 293 * @has_finger_limit - indicates that F11 Ctrl 80 exists. 294 * @has_linear_coeff - indicates that F11 Ctrl 81 exists. 295 * 296 * Query 13 is present if Query 5's has_jitter_filter bit is set. 297 * @jitter_window_size - used by Design Studio 4. 298 * @jitter_filter_type - used by Design Studio 4. 299 * 300 * Query 14 is present if query 12's has_general_info2 flag is set. 301 * 302 * @light_control - Indicates what light/led control features are present, if 303 * any. 304 * @is_clear - if set, this is a clear sensor (indicating direct pointing 305 * application), otherwise it's opaque (indicating indirect pointing). 306 * @clickpad_props - specifies if this is a clickpad, and if so what sort of 307 * mechanism it uses 308 * @mouse_buttons - specifies the number of mouse buttons present (if any). 309 * @has_advanced_gestures - advanced driver gestures are supported. 310 */ 311struct f11_2d_sensor_queries { 312 /* query1 */ 313 u8 nr_fingers; 314 bool has_rel; 315 bool has_abs; 316 bool has_gestures; 317 bool has_sensitivity_adjust; 318 bool configurable; 319 320 /* query2 */ 321 u8 nr_x_electrodes; 322 323 /* query3 */ 324 u8 nr_y_electrodes; 325 326 /* query4 */ 327 u8 max_electrodes; 328 329 /* query5 */ 330 u8 abs_data_size; 331 bool has_anchored_finger; 332 bool has_adj_hyst; 333 bool has_dribble; 334 bool has_bending_correction; 335 bool has_large_object_suppression; 336 bool has_jitter_filter; 337 338 u8 f11_2d_query6; 339 340 /* query 7 */ 341 bool has_single_tap; 342 bool has_tap_n_hold; 343 bool has_double_tap; 344 bool has_early_tap; 345 bool has_flick; 346 bool has_press; 347 bool has_pinch; 348 bool has_chiral; 349 350 bool query7_nonzero; 351 352 /* query 8 */ 353 bool has_palm_det; 354 bool has_rotate; 355 bool has_touch_shapes; 356 bool has_scroll_zones; 357 bool has_individual_scroll_zones; 358 bool has_mf_scroll; 359 bool has_mf_edge_motion; 360 bool has_mf_scroll_inertia; 361 362 bool query8_nonzero; 363 364 /* Query 9 */ 365 bool has_pen; 366 bool has_proximity; 367 bool has_palm_det_sensitivity; 368 bool has_suppress_on_palm_detect; 369 bool has_two_pen_thresholds; 370 bool has_contact_geometry; 371 bool has_pen_hover_discrimination; 372 bool has_pen_filters; 373 374 /* Query 10 */ 375 u8 nr_touch_shapes; 376 377 /* Query 11. */ 378 bool has_z_tuning; 379 bool has_algorithm_selection; 380 bool has_w_tuning; 381 bool has_pitch_info; 382 bool has_finger_size; 383 bool has_segmentation_aggressiveness; 384 bool has_XY_clip; 385 bool has_drumming_filter; 386 387 /* Query 12 */ 388 bool has_gapless_finger; 389 bool has_gapless_finger_tuning; 390 bool has_8bit_w; 391 bool has_adjustable_mapping; 392 bool has_info2; 393 bool has_physical_props; 394 bool has_finger_limit; 395 bool has_linear_coeff_2; 396 397 /* Query 13 */ 398 u8 jitter_window_size; 399 u8 jitter_filter_type; 400 401 /* Query 14 */ 402 u8 light_control; 403 bool is_clear; 404 u8 clickpad_props; 405 u8 mouse_buttons; 406 bool has_advanced_gestures; 407 408 /* Query 15 - 18 */ 409 u16 x_sensor_size_mm; 410 u16 y_sensor_size_mm; 411}; 412 413/* Defs for Ctrl0. */ 414#define RMI_F11_REPORT_MODE_MASK 0x07 415#define RMI_F11_REPORT_MODE_CONTINUOUS (0 << 0) 416#define RMI_F11_REPORT_MODE_REDUCED (1 << 0) 417#define RMI_F11_REPORT_MODE_FS_CHANGE (2 << 0) 418#define RMI_F11_REPORT_MODE_FP_CHANGE (3 << 0) 419#define RMI_F11_ABS_POS_FILT (1 << 3) 420#define RMI_F11_REL_POS_FILT (1 << 4) 421#define RMI_F11_REL_BALLISTICS (1 << 5) 422#define RMI_F11_DRIBBLE (1 << 6) 423#define RMI_F11_REPORT_BEYOND_CLIP (1 << 7) 424 425/* Defs for Ctrl1. */ 426#define RMI_F11_PALM_DETECT_THRESH_MASK 0x0F 427#define RMI_F11_MOTION_SENSITIVITY_MASK 0x30 428#define RMI_F11_MANUAL_TRACKING (1 << 6) 429#define RMI_F11_MANUAL_TRACKED_FINGER (1 << 7) 430 431#define RMI_F11_DELTA_X_THRESHOLD 2 432#define RMI_F11_DELTA_Y_THRESHOLD 3 433 434#define RMI_F11_CTRL_REG_COUNT 12 435 436struct f11_2d_ctrl { 437 u8 ctrl0_11[RMI_F11_CTRL_REG_COUNT]; 438 u16 ctrl0_11_address; 439}; 440 441#define RMI_F11_ABS_BYTES 5 442#define RMI_F11_REL_BYTES 2 443 444/* Defs for Data 8 */ 445 446#define RMI_F11_SINGLE_TAP (1 << 0) 447#define RMI_F11_TAP_AND_HOLD (1 << 1) 448#define RMI_F11_DOUBLE_TAP (1 << 2) 449#define RMI_F11_EARLY_TAP (1 << 3) 450#define RMI_F11_FLICK (1 << 4) 451#define RMI_F11_PRESS (1 << 5) 452#define RMI_F11_PINCH (1 << 6) 453 454/* Defs for Data 9 */ 455 456#define RMI_F11_PALM_DETECT (1 << 0) 457#define RMI_F11_ROTATE (1 << 1) 458#define RMI_F11_SHAPE (1 << 2) 459#define RMI_F11_SCROLLZONE (1 << 3) 460#define RMI_F11_GESTURE_FINGER_COUNT_MASK 0x70 461 462/** Handy pointers into our data buffer. 463 * 464 * @f_state - start of finger state registers. 465 * @abs_pos - start of absolute position registers (if present). 466 * @rel_pos - start of relative data registers (if present). 467 * @gest_1 - gesture flags (if present). 468 * @gest_2 - gesture flags & finger count (if present). 469 * @pinch - pinch motion register (if present). 470 * @flick - flick distance X & Y, flick time (if present). 471 * @rotate - rotate motion and finger separation. 472 * @multi_scroll - chiral deltas for X and Y (if present). 473 * @scroll_zones - scroll deltas for 4 regions (if present). 474 */ 475struct f11_2d_data { 476 u8 *f_state; 477 u8 *abs_pos; 478 s8 *rel_pos; 479 u8 *gest_1; 480 u8 *gest_2; 481 s8 *pinch; 482 u8 *flick; 483 u8 *rotate; 484 u8 *shapes; 485 s8 *multi_scroll; 486 s8 *scroll_zones; 487}; 488 489/** Data pertaining to F11 in general. For per-sensor data, see struct 490 * f11_2d_sensor. 491 * 492 * @dev_query - F11 device specific query registers. 493 * @dev_controls - F11 device specific control registers. 494 * @dev_controls_mutex - lock for the control registers. 495 * @rezero_wait_ms - if nonzero, upon resume we will wait this many 496 * milliseconds before rezeroing the sensor(s). This is useful in systems with 497 * poor electrical behavior on resume, where the initial calibration of the 498 * sensor(s) coming out of sleep state may be bogus. 499 * @sensors - per sensor data structures. 500 */ 501struct f11_data { 502 bool has_query9; 503 bool has_query11; 504 bool has_query12; 505 bool has_query27; 506 bool has_query28; 507 bool has_acm; 508 struct f11_2d_ctrl dev_controls; 509 struct mutex dev_controls_mutex; 510 u16 rezero_wait_ms; 511 struct rmi_2d_sensor sensor; 512 struct f11_2d_sensor_queries sens_query; 513 struct f11_2d_data data; 514 struct rmi_2d_sensor_platform_data sensor_pdata; 515 unsigned long *abs_mask; 516 unsigned long *rel_mask; 517}; 518 519enum f11_finger_state { 520 F11_NO_FINGER = 0x00, 521 F11_PRESENT = 0x01, 522 F11_INACCURATE = 0x02, 523 F11_RESERVED = 0x03 524}; 525 526static void rmi_f11_rel_pos_report(struct f11_data *f11, u8 n_finger) 527{ 528 struct rmi_2d_sensor *sensor = &f11->sensor; 529 struct f11_2d_data *data = &f11->data; 530 s8 x, y; 531 532 x = data->rel_pos[n_finger * RMI_F11_REL_BYTES]; 533 y = data->rel_pos[n_finger * RMI_F11_REL_BYTES + 1]; 534 535 rmi_2d_sensor_rel_report(sensor, x, y); 536} 537 538static void rmi_f11_abs_pos_process(struct f11_data *f11, 539 struct rmi_2d_sensor *sensor, 540 struct rmi_2d_sensor_abs_object *obj, 541 enum f11_finger_state finger_state, 542 u8 n_finger) 543{ 544 struct f11_2d_data *data = &f11->data; 545 u8 *pos_data = &data->abs_pos[n_finger * RMI_F11_ABS_BYTES]; 546 int tool_type = MT_TOOL_FINGER; 547 548 switch (finger_state) { 549 case F11_PRESENT: 550 obj->type = RMI_2D_OBJECT_FINGER; 551 break; 552 default: 553 obj->type = RMI_2D_OBJECT_NONE; 554 } 555 556 obj->mt_tool = tool_type; 557 obj->x = (pos_data[0] << 4) | (pos_data[2] & 0x0F); 558 obj->y = (pos_data[1] << 4) | (pos_data[2] >> 4); 559 obj->z = pos_data[4]; 560 obj->wx = pos_data[3] & 0x0f; 561 obj->wy = pos_data[3] >> 4; 562 563 rmi_2d_sensor_abs_process(sensor, obj, n_finger); 564} 565 566static inline u8 rmi_f11_parse_finger_state(const u8 *f_state, u8 n_finger) 567{ 568 return (f_state[n_finger / 4] >> (2 * (n_finger % 4))) & 569 FINGER_STATE_MASK; 570} 571 572static void rmi_f11_finger_handler(struct f11_data *f11, 573 struct rmi_2d_sensor *sensor, int size) 574{ 575 const u8 *f_state = f11->data.f_state; 576 u8 finger_state; 577 u8 i; 578 int abs_fingers; 579 int rel_fingers; 580 int abs_size = sensor->nbr_fingers * RMI_F11_ABS_BYTES; 581 582 if (sensor->report_abs) { 583 if (abs_size > size) 584 abs_fingers = size / RMI_F11_ABS_BYTES; 585 else 586 abs_fingers = sensor->nbr_fingers; 587 588 for (i = 0; i < abs_fingers; i++) { 589 /* Possible of having 4 fingers per f_state register */ 590 finger_state = rmi_f11_parse_finger_state(f_state, i); 591 if (finger_state == F11_RESERVED) { 592 pr_err("Invalid finger state[%d]: 0x%02x", i, 593 finger_state); 594 continue; 595 } 596 597 rmi_f11_abs_pos_process(f11, sensor, &sensor->objs[i], 598 finger_state, i); 599 } 600 601 /* 602 * the absolute part is made in 2 parts to allow the kernel 603 * tracking to take place. 604 */ 605 if (sensor->kernel_tracking) 606 input_mt_assign_slots(sensor->input, 607 sensor->tracking_slots, 608 sensor->tracking_pos, 609 sensor->nbr_fingers, 610 sensor->dmax); 611 612 for (i = 0; i < abs_fingers; i++) { 613 finger_state = rmi_f11_parse_finger_state(f_state, i); 614 if (finger_state == F11_RESERVED) 615 /* no need to send twice the error */ 616 continue; 617 618 rmi_2d_sensor_abs_report(sensor, &sensor->objs[i], i); 619 } 620 621 input_mt_sync_frame(sensor->input); 622 } else if (sensor->report_rel) { 623 if ((abs_size + sensor->nbr_fingers * RMI_F11_REL_BYTES) > size) 624 rel_fingers = (size - abs_size) / RMI_F11_REL_BYTES; 625 else 626 rel_fingers = sensor->nbr_fingers; 627 628 for (i = 0; i < rel_fingers; i++) 629 rmi_f11_rel_pos_report(f11, i); 630 } 631 632} 633 634static int f11_2d_construct_data(struct f11_data *f11) 635{ 636 struct rmi_2d_sensor *sensor = &f11->sensor; 637 struct f11_2d_sensor_queries *query = &f11->sens_query; 638 struct f11_2d_data *data = &f11->data; 639 int i; 640 641 sensor->nbr_fingers = (query->nr_fingers == 5 ? 10 : 642 query->nr_fingers + 1); 643 644 sensor->pkt_size = DIV_ROUND_UP(sensor->nbr_fingers, 4); 645 646 if (query->has_abs) { 647 sensor->pkt_size += (sensor->nbr_fingers * 5); 648 sensor->attn_size = sensor->pkt_size; 649 } 650 651 if (query->has_rel) 652 sensor->pkt_size += (sensor->nbr_fingers * 2); 653 654 /* Check if F11_2D_Query7 is non-zero */ 655 if (query->query7_nonzero) 656 sensor->pkt_size += sizeof(u8); 657 658 /* Check if F11_2D_Query7 or F11_2D_Query8 is non-zero */ 659 if (query->query7_nonzero || query->query8_nonzero) 660 sensor->pkt_size += sizeof(u8); 661 662 if (query->has_pinch || query->has_flick || query->has_rotate) { 663 sensor->pkt_size += 3; 664 if (!query->has_flick) 665 sensor->pkt_size--; 666 if (!query->has_rotate) 667 sensor->pkt_size--; 668 } 669 670 if (query->has_touch_shapes) 671 sensor->pkt_size += 672 DIV_ROUND_UP(query->nr_touch_shapes + 1, 8); 673 674 sensor->data_pkt = devm_kzalloc(&sensor->fn->dev, sensor->pkt_size, 675 GFP_KERNEL); 676 if (!sensor->data_pkt) 677 return -ENOMEM; 678 679 data->f_state = sensor->data_pkt; 680 i = DIV_ROUND_UP(sensor->nbr_fingers, 4); 681 682 if (query->has_abs) { 683 data->abs_pos = &sensor->data_pkt[i]; 684 i += (sensor->nbr_fingers * RMI_F11_ABS_BYTES); 685 } 686 687 if (query->has_rel) { 688 data->rel_pos = &sensor->data_pkt[i]; 689 i += (sensor->nbr_fingers * RMI_F11_REL_BYTES); 690 } 691 692 if (query->query7_nonzero) { 693 data->gest_1 = &sensor->data_pkt[i]; 694 i++; 695 } 696 697 if (query->query7_nonzero || query->query8_nonzero) { 698 data->gest_2 = &sensor->data_pkt[i]; 699 i++; 700 } 701 702 if (query->has_pinch) { 703 data->pinch = &sensor->data_pkt[i]; 704 i++; 705 } 706 707 if (query->has_flick) { 708 if (query->has_pinch) { 709 data->flick = data->pinch; 710 i += 2; 711 } else { 712 data->flick = &sensor->data_pkt[i]; 713 i += 3; 714 } 715 } 716 717 if (query->has_rotate) { 718 if (query->has_flick) { 719 data->rotate = data->flick + 1; 720 } else { 721 data->rotate = &sensor->data_pkt[i]; 722 i += 2; 723 } 724 } 725 726 if (query->has_touch_shapes) 727 data->shapes = &sensor->data_pkt[i]; 728 729 return 0; 730} 731 732static int f11_read_control_regs(struct rmi_function *fn, 733 struct f11_2d_ctrl *ctrl, u16 ctrl_base_addr) { 734 struct rmi_device *rmi_dev = fn->rmi_dev; 735 int error = 0; 736 737 ctrl->ctrl0_11_address = ctrl_base_addr; 738 error = rmi_read_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11, 739 RMI_F11_CTRL_REG_COUNT); 740 if (error < 0) { 741 dev_err(&fn->dev, "Failed to read ctrl0, code: %d.\n", error); 742 return error; 743 } 744 745 return 0; 746} 747 748static int f11_write_control_regs(struct rmi_function *fn, 749 struct f11_2d_sensor_queries *query, 750 struct f11_2d_ctrl *ctrl, 751 u16 ctrl_base_addr) 752{ 753 struct rmi_device *rmi_dev = fn->rmi_dev; 754 int error; 755 756 error = rmi_write_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11, 757 RMI_F11_CTRL_REG_COUNT); 758 if (error < 0) 759 return error; 760 761 return 0; 762} 763 764static int rmi_f11_get_query_parameters(struct rmi_device *rmi_dev, 765 struct f11_data *f11, 766 struct f11_2d_sensor_queries *sensor_query, 767 u16 query_base_addr) 768{ 769 int query_size; 770 int rc; 771 u8 query_buf[RMI_F11_QUERY_SIZE]; 772 bool has_query36 = false; 773 774 rc = rmi_read_block(rmi_dev, query_base_addr, query_buf, 775 RMI_F11_QUERY_SIZE); 776 if (rc < 0) 777 return rc; 778 779 sensor_query->nr_fingers = query_buf[0] & RMI_F11_NR_FINGERS_MASK; 780 sensor_query->has_rel = !!(query_buf[0] & RMI_F11_HAS_REL); 781 sensor_query->has_abs = !!(query_buf[0] & RMI_F11_HAS_ABS); 782 sensor_query->has_gestures = !!(query_buf[0] & RMI_F11_HAS_GESTURES); 783 sensor_query->has_sensitivity_adjust = 784 !!(query_buf[0] & RMI_F11_HAS_SENSITIVITY_ADJ); 785 sensor_query->configurable = !!(query_buf[0] & RMI_F11_CONFIGURABLE); 786 787 sensor_query->nr_x_electrodes = 788 query_buf[1] & RMI_F11_NR_ELECTRODES_MASK; 789 sensor_query->nr_y_electrodes = 790 query_buf[2] & RMI_F11_NR_ELECTRODES_MASK; 791 sensor_query->max_electrodes = 792 query_buf[3] & RMI_F11_NR_ELECTRODES_MASK; 793 794 query_size = RMI_F11_QUERY_SIZE; 795 796 if (sensor_query->has_abs) { 797 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 798 if (rc < 0) 799 return rc; 800 801 sensor_query->abs_data_size = 802 query_buf[0] & RMI_F11_ABS_DATA_SIZE_MASK; 803 sensor_query->has_anchored_finger = 804 !!(query_buf[0] & RMI_F11_HAS_ANCHORED_FINGER); 805 sensor_query->has_adj_hyst = 806 !!(query_buf[0] & RMI_F11_HAS_ADJ_HYST); 807 sensor_query->has_dribble = 808 !!(query_buf[0] & RMI_F11_HAS_DRIBBLE); 809 sensor_query->has_bending_correction = 810 !!(query_buf[0] & RMI_F11_HAS_BENDING_CORRECTION); 811 sensor_query->has_large_object_suppression = 812 !!(query_buf[0] & RMI_F11_HAS_LARGE_OBJECT_SUPPRESSION); 813 sensor_query->has_jitter_filter = 814 !!(query_buf[0] & RMI_F11_HAS_JITTER_FILTER); 815 query_size++; 816 } 817 818 if (sensor_query->has_rel) { 819 rc = rmi_read(rmi_dev, query_base_addr + query_size, 820 &sensor_query->f11_2d_query6); 821 if (rc < 0) 822 return rc; 823 query_size++; 824 } 825 826 if (sensor_query->has_gestures) { 827 rc = rmi_read_block(rmi_dev, query_base_addr + query_size, 828 query_buf, RMI_F11_QUERY_GESTURE_SIZE); 829 if (rc < 0) 830 return rc; 831 832 sensor_query->has_single_tap = 833 !!(query_buf[0] & RMI_F11_HAS_SINGLE_TAP); 834 sensor_query->has_tap_n_hold = 835 !!(query_buf[0] & RMI_F11_HAS_TAP_AND_HOLD); 836 sensor_query->has_double_tap = 837 !!(query_buf[0] & RMI_F11_HAS_DOUBLE_TAP); 838 sensor_query->has_early_tap = 839 !!(query_buf[0] & RMI_F11_HAS_EARLY_TAP); 840 sensor_query->has_flick = 841 !!(query_buf[0] & RMI_F11_HAS_FLICK); 842 sensor_query->has_press = 843 !!(query_buf[0] & RMI_F11_HAS_PRESS); 844 sensor_query->has_pinch = 845 !!(query_buf[0] & RMI_F11_HAS_PINCH); 846 sensor_query->has_chiral = 847 !!(query_buf[0] & RMI_F11_HAS_CHIRAL); 848 849 /* query 8 */ 850 sensor_query->has_palm_det = 851 !!(query_buf[1] & RMI_F11_HAS_PALM_DET); 852 sensor_query->has_rotate = 853 !!(query_buf[1] & RMI_F11_HAS_ROTATE); 854 sensor_query->has_touch_shapes = 855 !!(query_buf[1] & RMI_F11_HAS_TOUCH_SHAPES); 856 sensor_query->has_scroll_zones = 857 !!(query_buf[1] & RMI_F11_HAS_SCROLL_ZONES); 858 sensor_query->has_individual_scroll_zones = 859 !!(query_buf[1] & RMI_F11_HAS_INDIVIDUAL_SCROLL_ZONES); 860 sensor_query->has_mf_scroll = 861 !!(query_buf[1] & RMI_F11_HAS_MF_SCROLL); 862 sensor_query->has_mf_edge_motion = 863 !!(query_buf[1] & RMI_F11_HAS_MF_EDGE_MOTION); 864 sensor_query->has_mf_scroll_inertia = 865 !!(query_buf[1] & RMI_F11_HAS_MF_SCROLL_INERTIA); 866 867 sensor_query->query7_nonzero = !!(query_buf[0]); 868 sensor_query->query8_nonzero = !!(query_buf[1]); 869 870 query_size += 2; 871 } 872 873 if (f11->has_query9) { 874 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 875 if (rc < 0) 876 return rc; 877 878 sensor_query->has_pen = 879 !!(query_buf[0] & RMI_F11_HAS_PEN); 880 sensor_query->has_proximity = 881 !!(query_buf[0] & RMI_F11_HAS_PROXIMITY); 882 sensor_query->has_palm_det_sensitivity = 883 !!(query_buf[0] & RMI_F11_HAS_PALM_DET_SENSITIVITY); 884 sensor_query->has_suppress_on_palm_detect = 885 !!(query_buf[0] & RMI_F11_HAS_SUPPRESS_ON_PALM_DETECT); 886 sensor_query->has_two_pen_thresholds = 887 !!(query_buf[0] & RMI_F11_HAS_TWO_PEN_THRESHOLDS); 888 sensor_query->has_contact_geometry = 889 !!(query_buf[0] & RMI_F11_HAS_CONTACT_GEOMETRY); 890 sensor_query->has_pen_hover_discrimination = 891 !!(query_buf[0] & RMI_F11_HAS_PEN_HOVER_DISCRIMINATION); 892 sensor_query->has_pen_filters = 893 !!(query_buf[0] & RMI_F11_HAS_PEN_FILTERS); 894 895 query_size++; 896 } 897 898 if (sensor_query->has_touch_shapes) { 899 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 900 if (rc < 0) 901 return rc; 902 903 sensor_query->nr_touch_shapes = query_buf[0] & 904 RMI_F11_NR_TOUCH_SHAPES_MASK; 905 906 query_size++; 907 } 908 909 if (f11->has_query11) { 910 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 911 if (rc < 0) 912 return rc; 913 914 sensor_query->has_z_tuning = 915 !!(query_buf[0] & RMI_F11_HAS_Z_TUNING); 916 sensor_query->has_algorithm_selection = 917 !!(query_buf[0] & RMI_F11_HAS_ALGORITHM_SELECTION); 918 sensor_query->has_w_tuning = 919 !!(query_buf[0] & RMI_F11_HAS_W_TUNING); 920 sensor_query->has_pitch_info = 921 !!(query_buf[0] & RMI_F11_HAS_PITCH_INFO); 922 sensor_query->has_finger_size = 923 !!(query_buf[0] & RMI_F11_HAS_FINGER_SIZE); 924 sensor_query->has_segmentation_aggressiveness = 925 !!(query_buf[0] & 926 RMI_F11_HAS_SEGMENTATION_AGGRESSIVENESS); 927 sensor_query->has_XY_clip = 928 !!(query_buf[0] & RMI_F11_HAS_XY_CLIP); 929 sensor_query->has_drumming_filter = 930 !!(query_buf[0] & RMI_F11_HAS_DRUMMING_FILTER); 931 932 query_size++; 933 } 934 935 if (f11->has_query12) { 936 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 937 if (rc < 0) 938 return rc; 939 940 sensor_query->has_gapless_finger = 941 !!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER); 942 sensor_query->has_gapless_finger_tuning = 943 !!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER_TUNING); 944 sensor_query->has_8bit_w = 945 !!(query_buf[0] & RMI_F11_HAS_8BIT_W); 946 sensor_query->has_adjustable_mapping = 947 !!(query_buf[0] & RMI_F11_HAS_ADJUSTABLE_MAPPING); 948 sensor_query->has_info2 = 949 !!(query_buf[0] & RMI_F11_HAS_INFO2); 950 sensor_query->has_physical_props = 951 !!(query_buf[0] & RMI_F11_HAS_PHYSICAL_PROPS); 952 sensor_query->has_finger_limit = 953 !!(query_buf[0] & RMI_F11_HAS_FINGER_LIMIT); 954 sensor_query->has_linear_coeff_2 = 955 !!(query_buf[0] & RMI_F11_HAS_LINEAR_COEFF); 956 957 query_size++; 958 } 959 960 if (sensor_query->has_jitter_filter) { 961 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 962 if (rc < 0) 963 return rc; 964 965 sensor_query->jitter_window_size = query_buf[0] & 966 RMI_F11_JITTER_WINDOW_MASK; 967 sensor_query->jitter_filter_type = (query_buf[0] & 968 RMI_F11_JITTER_FILTER_MASK) >> 969 RMI_F11_JITTER_FILTER_SHIFT; 970 971 query_size++; 972 } 973 974 if (sensor_query->has_info2) { 975 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 976 if (rc < 0) 977 return rc; 978 979 sensor_query->light_control = 980 query_buf[0] & RMI_F11_LIGHT_CONTROL_MASK; 981 sensor_query->is_clear = 982 !!(query_buf[0] & RMI_F11_IS_CLEAR); 983 sensor_query->clickpad_props = 984 (query_buf[0] & RMI_F11_CLICKPAD_PROPS_MASK) >> 985 RMI_F11_CLICKPAD_PROPS_SHIFT; 986 sensor_query->mouse_buttons = 987 (query_buf[0] & RMI_F11_MOUSE_BUTTONS_MASK) >> 988 RMI_F11_MOUSE_BUTTONS_SHIFT; 989 sensor_query->has_advanced_gestures = 990 !!(query_buf[0] & RMI_F11_HAS_ADVANCED_GESTURES); 991 992 query_size++; 993 } 994 995 if (sensor_query->has_physical_props) { 996 rc = rmi_read_block(rmi_dev, query_base_addr 997 + query_size, query_buf, 4); 998 if (rc < 0) 999 return rc; 1000 1001 sensor_query->x_sensor_size_mm = 1002 (query_buf[0] | (query_buf[1] << 8)) / 10; 1003 sensor_query->y_sensor_size_mm = 1004 (query_buf[2] | (query_buf[3] << 8)) / 10; 1005 1006 /* 1007 * query 15 - 18 contain the size of the sensor 1008 * and query 19 - 26 contain bezel dimensions 1009 */ 1010 query_size += 12; 1011 } 1012 1013 if (f11->has_query27) 1014 ++query_size; 1015 1016 if (f11->has_query28) { 1017 rc = rmi_read(rmi_dev, query_base_addr + query_size, 1018 query_buf); 1019 if (rc < 0) 1020 return rc; 1021 1022 has_query36 = !!(query_buf[0] & BIT(6)); 1023 } 1024 1025 if (has_query36) { 1026 query_size += 2; 1027 rc = rmi_read(rmi_dev, query_base_addr + query_size, 1028 query_buf); 1029 if (rc < 0) 1030 return rc; 1031 1032 if (!!(query_buf[0] & BIT(5))) 1033 f11->has_acm = true; 1034 } 1035 1036 return query_size; 1037} 1038 1039static int rmi_f11_initialize(struct rmi_function *fn) 1040{ 1041 struct rmi_device *rmi_dev = fn->rmi_dev; 1042 struct f11_data *f11; 1043 struct f11_2d_ctrl *ctrl; 1044 u8 query_offset; 1045 u16 query_base_addr; 1046 u16 control_base_addr; 1047 u16 max_x_pos, max_y_pos; 1048 int rc; 1049 const struct rmi_device_platform_data *pdata = 1050 rmi_get_platform_data(rmi_dev); 1051 struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); 1052 struct rmi_2d_sensor *sensor; 1053 u8 buf; 1054 int mask_size; 1055 1056 rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Initializing F11 values.\n"); 1057 1058 mask_size = BITS_TO_LONGS(drvdata->irq_count) * sizeof(unsigned long); 1059 1060 /* 1061 ** init instance data, fill in values and create any sysfs files 1062 */ 1063 f11 = devm_kzalloc(&fn->dev, sizeof(struct f11_data) + mask_size * 2, 1064 GFP_KERNEL); 1065 if (!f11) 1066 return -ENOMEM; 1067 1068 if (fn->dev.of_node) { 1069 rc = rmi_2d_sensor_of_probe(&fn->dev, &f11->sensor_pdata); 1070 if (rc) 1071 return rc; 1072 } else { 1073 f11->sensor_pdata = pdata->sensor_pdata; 1074 } 1075 1076 f11->rezero_wait_ms = f11->sensor_pdata.rezero_wait; 1077 1078 f11->abs_mask = (unsigned long *)((char *)f11 1079 + sizeof(struct f11_data)); 1080 f11->rel_mask = (unsigned long *)((char *)f11 1081 + sizeof(struct f11_data) + mask_size); 1082 1083 set_bit(fn->irq_pos, f11->abs_mask); 1084 set_bit(fn->irq_pos + 1, f11->rel_mask); 1085 1086 query_base_addr = fn->fd.query_base_addr; 1087 control_base_addr = fn->fd.control_base_addr; 1088 1089 rc = rmi_read(rmi_dev, query_base_addr, &buf); 1090 if (rc < 0) 1091 return rc; 1092 1093 f11->has_query9 = !!(buf & RMI_F11_HAS_QUERY9); 1094 f11->has_query11 = !!(buf & RMI_F11_HAS_QUERY11); 1095 f11->has_query12 = !!(buf & RMI_F11_HAS_QUERY12); 1096 f11->has_query27 = !!(buf & RMI_F11_HAS_QUERY27); 1097 f11->has_query28 = !!(buf & RMI_F11_HAS_QUERY28); 1098 1099 query_offset = (query_base_addr + 1); 1100 sensor = &f11->sensor; 1101 sensor->fn = fn; 1102 1103 rc = rmi_f11_get_query_parameters(rmi_dev, f11, 1104 &f11->sens_query, query_offset); 1105 if (rc < 0) 1106 return rc; 1107 query_offset += rc; 1108 1109 rc = f11_read_control_regs(fn, &f11->dev_controls, 1110 control_base_addr); 1111 if (rc < 0) { 1112 dev_err(&fn->dev, 1113 "Failed to read F11 control params.\n"); 1114 return rc; 1115 } 1116 1117 if (f11->sens_query.has_info2) { 1118 if (f11->sens_query.is_clear) 1119 f11->sensor.sensor_type = rmi_sensor_touchscreen; 1120 else 1121 f11->sensor.sensor_type = rmi_sensor_touchpad; 1122 } 1123 1124 sensor->report_abs = f11->sens_query.has_abs; 1125 1126 sensor->axis_align = 1127 f11->sensor_pdata.axis_align; 1128 1129 sensor->topbuttonpad = f11->sensor_pdata.topbuttonpad; 1130 sensor->kernel_tracking = f11->sensor_pdata.kernel_tracking; 1131 sensor->dmax = f11->sensor_pdata.dmax; 1132 sensor->dribble = f11->sensor_pdata.dribble; 1133 sensor->palm_detect = f11->sensor_pdata.palm_detect; 1134 1135 if (f11->sens_query.has_physical_props) { 1136 sensor->x_mm = f11->sens_query.x_sensor_size_mm; 1137 sensor->y_mm = f11->sens_query.y_sensor_size_mm; 1138 } else { 1139 sensor->x_mm = f11->sensor_pdata.x_mm; 1140 sensor->y_mm = f11->sensor_pdata.y_mm; 1141 } 1142 1143 if (sensor->sensor_type == rmi_sensor_default) 1144 sensor->sensor_type = 1145 f11->sensor_pdata.sensor_type; 1146 1147 sensor->report_abs = sensor->report_abs 1148 && !(f11->sensor_pdata.disable_report_mask 1149 & RMI_F11_DISABLE_ABS_REPORT); 1150 1151 if (!sensor->report_abs) 1152 /* 1153 * If device doesn't have abs or if it has been disables 1154 * fallback to reporting rel data. 1155 */ 1156 sensor->report_rel = f11->sens_query.has_rel; 1157 1158 rc = rmi_read_block(rmi_dev, 1159 control_base_addr + F11_CTRL_SENSOR_MAX_X_POS_OFFSET, 1160 (u8 *)&max_x_pos, sizeof(max_x_pos)); 1161 if (rc < 0) 1162 return rc; 1163 1164 rc = rmi_read_block(rmi_dev, 1165 control_base_addr + F11_CTRL_SENSOR_MAX_Y_POS_OFFSET, 1166 (u8 *)&max_y_pos, sizeof(max_y_pos)); 1167 if (rc < 0) 1168 return rc; 1169 1170 sensor->max_x = max_x_pos; 1171 sensor->max_y = max_y_pos; 1172 1173 rc = f11_2d_construct_data(f11); 1174 if (rc < 0) 1175 return rc; 1176 1177 if (f11->has_acm) 1178 f11->sensor.attn_size += f11->sensor.nbr_fingers * 2; 1179 1180 /* allocate the in-kernel tracking buffers */ 1181 sensor->tracking_pos = devm_kcalloc(&fn->dev, 1182 sensor->nbr_fingers, sizeof(struct input_mt_pos), 1183 GFP_KERNEL); 1184 sensor->tracking_slots = devm_kcalloc(&fn->dev, 1185 sensor->nbr_fingers, sizeof(int), GFP_KERNEL); 1186 sensor->objs = devm_kcalloc(&fn->dev, 1187 sensor->nbr_fingers, 1188 sizeof(struct rmi_2d_sensor_abs_object), 1189 GFP_KERNEL); 1190 if (!sensor->tracking_pos || !sensor->tracking_slots || !sensor->objs) 1191 return -ENOMEM; 1192 1193 ctrl = &f11->dev_controls; 1194 if (sensor->axis_align.delta_x_threshold) 1195 ctrl->ctrl0_11[RMI_F11_DELTA_X_THRESHOLD] = 1196 sensor->axis_align.delta_x_threshold; 1197 1198 if (sensor->axis_align.delta_y_threshold) 1199 ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] = 1200 sensor->axis_align.delta_y_threshold; 1201 1202 /* 1203 * If distance threshold values are set, switch to reduced reporting 1204 * mode so they actually get used by the controller. 1205 */ 1206 if (sensor->axis_align.delta_x_threshold || 1207 sensor->axis_align.delta_y_threshold) { 1208 ctrl->ctrl0_11[0] &= ~RMI_F11_REPORT_MODE_MASK; 1209 ctrl->ctrl0_11[0] |= RMI_F11_REPORT_MODE_REDUCED; 1210 } 1211 1212 if (f11->sens_query.has_dribble) { 1213 switch (sensor->dribble) { 1214 case RMI_REG_STATE_OFF: 1215 ctrl->ctrl0_11[0] &= ~BIT(6); 1216 break; 1217 case RMI_REG_STATE_ON: 1218 ctrl->ctrl0_11[0] |= BIT(6); 1219 break; 1220 case RMI_REG_STATE_DEFAULT: 1221 default: 1222 break; 1223 } 1224 } 1225 1226 if (f11->sens_query.has_palm_det) { 1227 switch (sensor->palm_detect) { 1228 case RMI_REG_STATE_OFF: 1229 ctrl->ctrl0_11[11] &= ~BIT(0); 1230 break; 1231 case RMI_REG_STATE_ON: 1232 ctrl->ctrl0_11[11] |= BIT(0); 1233 break; 1234 case RMI_REG_STATE_DEFAULT: 1235 default: 1236 break; 1237 } 1238 } 1239 1240 rc = f11_write_control_regs(fn, &f11->sens_query, 1241 &f11->dev_controls, fn->fd.control_base_addr); 1242 if (rc) 1243 dev_warn(&fn->dev, "Failed to write control registers\n"); 1244 1245 mutex_init(&f11->dev_controls_mutex); 1246 1247 dev_set_drvdata(&fn->dev, f11); 1248 1249 return 0; 1250} 1251 1252static int rmi_f11_config(struct rmi_function *fn) 1253{ 1254 struct f11_data *f11 = dev_get_drvdata(&fn->dev); 1255 struct rmi_driver *drv = fn->rmi_dev->driver; 1256 struct rmi_2d_sensor *sensor = &f11->sensor; 1257 int rc; 1258 1259 if (!sensor->report_abs) 1260 drv->clear_irq_bits(fn->rmi_dev, f11->abs_mask); 1261 else 1262 drv->set_irq_bits(fn->rmi_dev, f11->abs_mask); 1263 1264 if (!sensor->report_rel) 1265 drv->clear_irq_bits(fn->rmi_dev, f11->rel_mask); 1266 else 1267 drv->set_irq_bits(fn->rmi_dev, f11->rel_mask); 1268 1269 rc = f11_write_control_regs(fn, &f11->sens_query, 1270 &f11->dev_controls, fn->fd.query_base_addr); 1271 if (rc < 0) 1272 return rc; 1273 1274 return 0; 1275} 1276 1277static irqreturn_t rmi_f11_attention(int irq, void *ctx) 1278{ 1279 struct rmi_function *fn = ctx; 1280 struct rmi_device *rmi_dev = fn->rmi_dev; 1281 struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); 1282 struct f11_data *f11 = dev_get_drvdata(&fn->dev); 1283 u16 data_base_addr = fn->fd.data_base_addr; 1284 int error; 1285 int valid_bytes = f11->sensor.pkt_size; 1286 1287 if (drvdata->attn_data.data) { 1288 /* 1289 * The valid data in the attention report is less then 1290 * expected. Only process the complete fingers. 1291 */ 1292 if (f11->sensor.attn_size > drvdata->attn_data.size) 1293 valid_bytes = drvdata->attn_data.size; 1294 else 1295 valid_bytes = f11->sensor.attn_size; 1296 memcpy(f11->sensor.data_pkt, drvdata->attn_data.data, 1297 valid_bytes); 1298 drvdata->attn_data.data += valid_bytes; 1299 drvdata->attn_data.size -= valid_bytes; 1300 } else { 1301 error = rmi_read_block(rmi_dev, 1302 data_base_addr, f11->sensor.data_pkt, 1303 f11->sensor.pkt_size); 1304 if (error < 0) 1305 return IRQ_RETVAL(error); 1306 } 1307 1308 rmi_f11_finger_handler(f11, &f11->sensor, valid_bytes); 1309 1310 return IRQ_HANDLED; 1311} 1312 1313static int rmi_f11_resume(struct rmi_function *fn) 1314{ 1315 struct f11_data *f11 = dev_get_drvdata(&fn->dev); 1316 int error; 1317 1318 rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Resuming...\n"); 1319 if (!f11->rezero_wait_ms) 1320 return 0; 1321 1322 mdelay(f11->rezero_wait_ms); 1323 1324 error = rmi_write(fn->rmi_dev, fn->fd.command_base_addr, 1325 RMI_F11_REZERO); 1326 if (error) { 1327 dev_err(&fn->dev, 1328 "%s: failed to issue rezero command, error = %d.", 1329 __func__, error); 1330 return error; 1331 } 1332 1333 return 0; 1334} 1335 1336static int rmi_f11_probe(struct rmi_function *fn) 1337{ 1338 int error; 1339 struct f11_data *f11; 1340 1341 error = rmi_f11_initialize(fn); 1342 if (error) 1343 return error; 1344 1345 f11 = dev_get_drvdata(&fn->dev); 1346 error = rmi_2d_sensor_configure_input(fn, &f11->sensor); 1347 if (error) 1348 return error; 1349 1350 return 0; 1351} 1352 1353struct rmi_function_handler rmi_f11_handler = { 1354 .driver = { 1355 .name = "rmi4_f11", 1356 }, 1357 .func = 0x11, 1358 .probe = rmi_f11_probe, 1359 .config = rmi_f11_config, 1360 .attention = rmi_f11_attention, 1361 .resume = rmi_f11_resume, 1362}; 1363