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 */ 311 struct 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_ABS_POS_FILT (1 << 3) 416 #define RMI_F11_REL_POS_FILT (1 << 4) 417 #define RMI_F11_REL_BALLISTICS (1 << 5) 418 #define RMI_F11_DRIBBLE (1 << 6) 419 #define RMI_F11_REPORT_BEYOND_CLIP (1 << 7) 420 421 /* Defs for Ctrl1. */ 422 #define RMI_F11_PALM_DETECT_THRESH_MASK 0x0F 423 #define RMI_F11_MOTION_SENSITIVITY_MASK 0x30 424 #define RMI_F11_MANUAL_TRACKING (1 << 6) 425 #define RMI_F11_MANUAL_TRACKED_FINGER (1 << 7) 426 427 #define RMI_F11_DELTA_X_THRESHOLD 2 428 #define RMI_F11_DELTA_Y_THRESHOLD 3 429 430 #define RMI_F11_CTRL_REG_COUNT 12 431 432 struct f11_2d_ctrl { 433 u8 ctrl0_11[RMI_F11_CTRL_REG_COUNT]; 434 u16 ctrl0_11_address; 435 }; 436 437 #define RMI_F11_ABS_BYTES 5 438 #define RMI_F11_REL_BYTES 2 439 440 /* Defs for Data 8 */ 441 442 #define RMI_F11_SINGLE_TAP (1 << 0) 443 #define RMI_F11_TAP_AND_HOLD (1 << 1) 444 #define RMI_F11_DOUBLE_TAP (1 << 2) 445 #define RMI_F11_EARLY_TAP (1 << 3) 446 #define RMI_F11_FLICK (1 << 4) 447 #define RMI_F11_PRESS (1 << 5) 448 #define RMI_F11_PINCH (1 << 6) 449 450 /* Defs for Data 9 */ 451 452 #define RMI_F11_PALM_DETECT (1 << 0) 453 #define RMI_F11_ROTATE (1 << 1) 454 #define RMI_F11_SHAPE (1 << 2) 455 #define RMI_F11_SCROLLZONE (1 << 3) 456 #define RMI_F11_GESTURE_FINGER_COUNT_MASK 0x70 457 458 /** Handy pointers into our data buffer. 459 * 460 * @f_state - start of finger state registers. 461 * @abs_pos - start of absolute position registers (if present). 462 * @rel_pos - start of relative data registers (if present). 463 * @gest_1 - gesture flags (if present). 464 * @gest_2 - gesture flags & finger count (if present). 465 * @pinch - pinch motion register (if present). 466 * @flick - flick distance X & Y, flick time (if present). 467 * @rotate - rotate motion and finger separation. 468 * @multi_scroll - chiral deltas for X and Y (if present). 469 * @scroll_zones - scroll deltas for 4 regions (if present). 470 */ 471 struct f11_2d_data { 472 u8 *f_state; 473 u8 *abs_pos; 474 s8 *rel_pos; 475 u8 *gest_1; 476 u8 *gest_2; 477 s8 *pinch; 478 u8 *flick; 479 u8 *rotate; 480 u8 *shapes; 481 s8 *multi_scroll; 482 s8 *scroll_zones; 483 }; 484 485 /** Data pertaining to F11 in general. For per-sensor data, see struct 486 * f11_2d_sensor. 487 * 488 * @dev_query - F11 device specific query registers. 489 * @dev_controls - F11 device specific control registers. 490 * @dev_controls_mutex - lock for the control registers. 491 * @rezero_wait_ms - if nonzero, upon resume we will wait this many 492 * milliseconds before rezeroing the sensor(s). This is useful in systems with 493 * poor electrical behavior on resume, where the initial calibration of the 494 * sensor(s) coming out of sleep state may be bogus. 495 * @sensors - per sensor data structures. 496 */ 497 struct f11_data { 498 bool has_query9; 499 bool has_query11; 500 bool has_query12; 501 bool has_query27; 502 bool has_query28; 503 bool has_acm; 504 struct f11_2d_ctrl dev_controls; 505 struct mutex dev_controls_mutex; 506 u16 rezero_wait_ms; 507 struct rmi_2d_sensor sensor; 508 struct f11_2d_sensor_queries sens_query; 509 struct f11_2d_data data; 510 struct rmi_2d_sensor_platform_data sensor_pdata; 511 unsigned long *abs_mask; 512 unsigned long *rel_mask; 513 }; 514 515 enum f11_finger_state { 516 F11_NO_FINGER = 0x00, 517 F11_PRESENT = 0x01, 518 F11_INACCURATE = 0x02, 519 F11_RESERVED = 0x03 520 }; 521 522 static void rmi_f11_rel_pos_report(struct f11_data *f11, u8 n_finger) 523 { 524 struct rmi_2d_sensor *sensor = &f11->sensor; 525 struct f11_2d_data *data = &f11->data; 526 s8 x, y; 527 528 x = data->rel_pos[n_finger * RMI_F11_REL_BYTES]; 529 y = data->rel_pos[n_finger * RMI_F11_REL_BYTES + 1]; 530 531 rmi_2d_sensor_rel_report(sensor, x, y); 532 } 533 534 static void rmi_f11_abs_pos_process(struct f11_data *f11, 535 struct rmi_2d_sensor *sensor, 536 struct rmi_2d_sensor_abs_object *obj, 537 enum f11_finger_state finger_state, 538 u8 n_finger) 539 { 540 struct f11_2d_data *data = &f11->data; 541 u8 *pos_data = &data->abs_pos[n_finger * RMI_F11_ABS_BYTES]; 542 int tool_type = MT_TOOL_FINGER; 543 544 switch (finger_state) { 545 case F11_PRESENT: 546 obj->type = RMI_2D_OBJECT_FINGER; 547 break; 548 default: 549 obj->type = RMI_2D_OBJECT_NONE; 550 } 551 552 obj->mt_tool = tool_type; 553 obj->x = (pos_data[0] << 4) | (pos_data[2] & 0x0F); 554 obj->y = (pos_data[1] << 4) | (pos_data[2] >> 4); 555 obj->z = pos_data[4]; 556 obj->wx = pos_data[3] & 0x0f; 557 obj->wy = pos_data[3] >> 4; 558 559 rmi_2d_sensor_abs_process(sensor, obj, n_finger); 560 } 561 562 static inline u8 rmi_f11_parse_finger_state(const u8 *f_state, u8 n_finger) 563 { 564 return (f_state[n_finger / 4] >> (2 * (n_finger % 4))) & 565 FINGER_STATE_MASK; 566 } 567 568 static void rmi_f11_finger_handler(struct f11_data *f11, 569 struct rmi_2d_sensor *sensor, int size) 570 { 571 const u8 *f_state = f11->data.f_state; 572 u8 finger_state; 573 u8 i; 574 int abs_fingers; 575 int rel_fingers; 576 int abs_size = sensor->nbr_fingers * RMI_F11_ABS_BYTES; 577 578 if (sensor->report_abs) { 579 if (abs_size > size) 580 abs_fingers = size / RMI_F11_ABS_BYTES; 581 else 582 abs_fingers = sensor->nbr_fingers; 583 584 for (i = 0; i < abs_fingers; i++) { 585 /* Possible of having 4 fingers per f_state register */ 586 finger_state = rmi_f11_parse_finger_state(f_state, i); 587 if (finger_state == F11_RESERVED) { 588 pr_err("Invalid finger state[%d]: 0x%02x", i, 589 finger_state); 590 continue; 591 } 592 593 rmi_f11_abs_pos_process(f11, sensor, &sensor->objs[i], 594 finger_state, i); 595 } 596 597 /* 598 * the absolute part is made in 2 parts to allow the kernel 599 * tracking to take place. 600 */ 601 if (sensor->kernel_tracking) 602 input_mt_assign_slots(sensor->input, 603 sensor->tracking_slots, 604 sensor->tracking_pos, 605 sensor->nbr_fingers, 606 sensor->dmax); 607 608 for (i = 0; i < abs_fingers; i++) { 609 finger_state = rmi_f11_parse_finger_state(f_state, i); 610 if (finger_state == F11_RESERVED) 611 /* no need to send twice the error */ 612 continue; 613 614 rmi_2d_sensor_abs_report(sensor, &sensor->objs[i], i); 615 } 616 617 input_mt_sync_frame(sensor->input); 618 } else if (sensor->report_rel) { 619 if ((abs_size + sensor->nbr_fingers * RMI_F11_REL_BYTES) > size) 620 rel_fingers = (size - abs_size) / RMI_F11_REL_BYTES; 621 else 622 rel_fingers = sensor->nbr_fingers; 623 624 for (i = 0; i < rel_fingers; i++) 625 rmi_f11_rel_pos_report(f11, i); 626 } 627 628 } 629 630 static int f11_2d_construct_data(struct f11_data *f11) 631 { 632 struct rmi_2d_sensor *sensor = &f11->sensor; 633 struct f11_2d_sensor_queries *query = &f11->sens_query; 634 struct f11_2d_data *data = &f11->data; 635 int i; 636 637 sensor->nbr_fingers = (query->nr_fingers == 5 ? 10 : 638 query->nr_fingers + 1); 639 640 sensor->pkt_size = DIV_ROUND_UP(sensor->nbr_fingers, 4); 641 642 if (query->has_abs) { 643 sensor->pkt_size += (sensor->nbr_fingers * 5); 644 sensor->attn_size = sensor->pkt_size; 645 } 646 647 if (query->has_rel) 648 sensor->pkt_size += (sensor->nbr_fingers * 2); 649 650 /* Check if F11_2D_Query7 is non-zero */ 651 if (query->query7_nonzero) 652 sensor->pkt_size += sizeof(u8); 653 654 /* Check if F11_2D_Query7 or F11_2D_Query8 is non-zero */ 655 if (query->query7_nonzero || query->query8_nonzero) 656 sensor->pkt_size += sizeof(u8); 657 658 if (query->has_pinch || query->has_flick || query->has_rotate) { 659 sensor->pkt_size += 3; 660 if (!query->has_flick) 661 sensor->pkt_size--; 662 if (!query->has_rotate) 663 sensor->pkt_size--; 664 } 665 666 if (query->has_touch_shapes) 667 sensor->pkt_size += 668 DIV_ROUND_UP(query->nr_touch_shapes + 1, 8); 669 670 sensor->data_pkt = devm_kzalloc(&sensor->fn->dev, sensor->pkt_size, 671 GFP_KERNEL); 672 if (!sensor->data_pkt) 673 return -ENOMEM; 674 675 data->f_state = sensor->data_pkt; 676 i = DIV_ROUND_UP(sensor->nbr_fingers, 4); 677 678 if (query->has_abs) { 679 data->abs_pos = &sensor->data_pkt[i]; 680 i += (sensor->nbr_fingers * RMI_F11_ABS_BYTES); 681 } 682 683 if (query->has_rel) { 684 data->rel_pos = &sensor->data_pkt[i]; 685 i += (sensor->nbr_fingers * RMI_F11_REL_BYTES); 686 } 687 688 if (query->query7_nonzero) { 689 data->gest_1 = &sensor->data_pkt[i]; 690 i++; 691 } 692 693 if (query->query7_nonzero || query->query8_nonzero) { 694 data->gest_2 = &sensor->data_pkt[i]; 695 i++; 696 } 697 698 if (query->has_pinch) { 699 data->pinch = &sensor->data_pkt[i]; 700 i++; 701 } 702 703 if (query->has_flick) { 704 if (query->has_pinch) { 705 data->flick = data->pinch; 706 i += 2; 707 } else { 708 data->flick = &sensor->data_pkt[i]; 709 i += 3; 710 } 711 } 712 713 if (query->has_rotate) { 714 if (query->has_flick) { 715 data->rotate = data->flick + 1; 716 } else { 717 data->rotate = &sensor->data_pkt[i]; 718 i += 2; 719 } 720 } 721 722 if (query->has_touch_shapes) 723 data->shapes = &sensor->data_pkt[i]; 724 725 return 0; 726 } 727 728 static int f11_read_control_regs(struct rmi_function *fn, 729 struct f11_2d_ctrl *ctrl, u16 ctrl_base_addr) { 730 struct rmi_device *rmi_dev = fn->rmi_dev; 731 int error = 0; 732 733 ctrl->ctrl0_11_address = ctrl_base_addr; 734 error = rmi_read_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11, 735 RMI_F11_CTRL_REG_COUNT); 736 if (error < 0) { 737 dev_err(&fn->dev, "Failed to read ctrl0, code: %d.\n", error); 738 return error; 739 } 740 741 return 0; 742 } 743 744 static int f11_write_control_regs(struct rmi_function *fn, 745 struct f11_2d_sensor_queries *query, 746 struct f11_2d_ctrl *ctrl, 747 u16 ctrl_base_addr) 748 { 749 struct rmi_device *rmi_dev = fn->rmi_dev; 750 int error; 751 752 error = rmi_write_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11, 753 RMI_F11_CTRL_REG_COUNT); 754 if (error < 0) 755 return error; 756 757 return 0; 758 } 759 760 static int rmi_f11_get_query_parameters(struct rmi_device *rmi_dev, 761 struct f11_data *f11, 762 struct f11_2d_sensor_queries *sensor_query, 763 u16 query_base_addr) 764 { 765 int query_size; 766 int rc; 767 u8 query_buf[RMI_F11_QUERY_SIZE]; 768 bool has_query36 = false; 769 770 rc = rmi_read_block(rmi_dev, query_base_addr, query_buf, 771 RMI_F11_QUERY_SIZE); 772 if (rc < 0) 773 return rc; 774 775 sensor_query->nr_fingers = query_buf[0] & RMI_F11_NR_FINGERS_MASK; 776 sensor_query->has_rel = !!(query_buf[0] & RMI_F11_HAS_REL); 777 sensor_query->has_abs = !!(query_buf[0] & RMI_F11_HAS_ABS); 778 sensor_query->has_gestures = !!(query_buf[0] & RMI_F11_HAS_GESTURES); 779 sensor_query->has_sensitivity_adjust = 780 !!(query_buf[0] & RMI_F11_HAS_SENSITIVITY_ADJ); 781 sensor_query->configurable = !!(query_buf[0] & RMI_F11_CONFIGURABLE); 782 783 sensor_query->nr_x_electrodes = 784 query_buf[1] & RMI_F11_NR_ELECTRODES_MASK; 785 sensor_query->nr_y_electrodes = 786 query_buf[2] & RMI_F11_NR_ELECTRODES_MASK; 787 sensor_query->max_electrodes = 788 query_buf[3] & RMI_F11_NR_ELECTRODES_MASK; 789 790 query_size = RMI_F11_QUERY_SIZE; 791 792 if (sensor_query->has_abs) { 793 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 794 if (rc < 0) 795 return rc; 796 797 sensor_query->abs_data_size = 798 query_buf[0] & RMI_F11_ABS_DATA_SIZE_MASK; 799 sensor_query->has_anchored_finger = 800 !!(query_buf[0] & RMI_F11_HAS_ANCHORED_FINGER); 801 sensor_query->has_adj_hyst = 802 !!(query_buf[0] & RMI_F11_HAS_ADJ_HYST); 803 sensor_query->has_dribble = 804 !!(query_buf[0] & RMI_F11_HAS_DRIBBLE); 805 sensor_query->has_bending_correction = 806 !!(query_buf[0] & RMI_F11_HAS_BENDING_CORRECTION); 807 sensor_query->has_large_object_suppression = 808 !!(query_buf[0] & RMI_F11_HAS_LARGE_OBJECT_SUPPRESSION); 809 sensor_query->has_jitter_filter = 810 !!(query_buf[0] & RMI_F11_HAS_JITTER_FILTER); 811 query_size++; 812 } 813 814 if (sensor_query->has_rel) { 815 rc = rmi_read(rmi_dev, query_base_addr + query_size, 816 &sensor_query->f11_2d_query6); 817 if (rc < 0) 818 return rc; 819 query_size++; 820 } 821 822 if (sensor_query->has_gestures) { 823 rc = rmi_read_block(rmi_dev, query_base_addr + query_size, 824 query_buf, RMI_F11_QUERY_GESTURE_SIZE); 825 if (rc < 0) 826 return rc; 827 828 sensor_query->has_single_tap = 829 !!(query_buf[0] & RMI_F11_HAS_SINGLE_TAP); 830 sensor_query->has_tap_n_hold = 831 !!(query_buf[0] & RMI_F11_HAS_TAP_AND_HOLD); 832 sensor_query->has_double_tap = 833 !!(query_buf[0] & RMI_F11_HAS_DOUBLE_TAP); 834 sensor_query->has_early_tap = 835 !!(query_buf[0] & RMI_F11_HAS_EARLY_TAP); 836 sensor_query->has_flick = 837 !!(query_buf[0] & RMI_F11_HAS_FLICK); 838 sensor_query->has_press = 839 !!(query_buf[0] & RMI_F11_HAS_PRESS); 840 sensor_query->has_pinch = 841 !!(query_buf[0] & RMI_F11_HAS_PINCH); 842 sensor_query->has_chiral = 843 !!(query_buf[0] & RMI_F11_HAS_CHIRAL); 844 845 /* query 8 */ 846 sensor_query->has_palm_det = 847 !!(query_buf[1] & RMI_F11_HAS_PALM_DET); 848 sensor_query->has_rotate = 849 !!(query_buf[1] & RMI_F11_HAS_ROTATE); 850 sensor_query->has_touch_shapes = 851 !!(query_buf[1] & RMI_F11_HAS_TOUCH_SHAPES); 852 sensor_query->has_scroll_zones = 853 !!(query_buf[1] & RMI_F11_HAS_SCROLL_ZONES); 854 sensor_query->has_individual_scroll_zones = 855 !!(query_buf[1] & RMI_F11_HAS_INDIVIDUAL_SCROLL_ZONES); 856 sensor_query->has_mf_scroll = 857 !!(query_buf[1] & RMI_F11_HAS_MF_SCROLL); 858 sensor_query->has_mf_edge_motion = 859 !!(query_buf[1] & RMI_F11_HAS_MF_EDGE_MOTION); 860 sensor_query->has_mf_scroll_inertia = 861 !!(query_buf[1] & RMI_F11_HAS_MF_SCROLL_INERTIA); 862 863 sensor_query->query7_nonzero = !!(query_buf[0]); 864 sensor_query->query8_nonzero = !!(query_buf[1]); 865 866 query_size += 2; 867 } 868 869 if (f11->has_query9) { 870 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 871 if (rc < 0) 872 return rc; 873 874 sensor_query->has_pen = 875 !!(query_buf[0] & RMI_F11_HAS_PEN); 876 sensor_query->has_proximity = 877 !!(query_buf[0] & RMI_F11_HAS_PROXIMITY); 878 sensor_query->has_palm_det_sensitivity = 879 !!(query_buf[0] & RMI_F11_HAS_PALM_DET_SENSITIVITY); 880 sensor_query->has_suppress_on_palm_detect = 881 !!(query_buf[0] & RMI_F11_HAS_SUPPRESS_ON_PALM_DETECT); 882 sensor_query->has_two_pen_thresholds = 883 !!(query_buf[0] & RMI_F11_HAS_TWO_PEN_THRESHOLDS); 884 sensor_query->has_contact_geometry = 885 !!(query_buf[0] & RMI_F11_HAS_CONTACT_GEOMETRY); 886 sensor_query->has_pen_hover_discrimination = 887 !!(query_buf[0] & RMI_F11_HAS_PEN_HOVER_DISCRIMINATION); 888 sensor_query->has_pen_filters = 889 !!(query_buf[0] & RMI_F11_HAS_PEN_FILTERS); 890 891 query_size++; 892 } 893 894 if (sensor_query->has_touch_shapes) { 895 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 896 if (rc < 0) 897 return rc; 898 899 sensor_query->nr_touch_shapes = query_buf[0] & 900 RMI_F11_NR_TOUCH_SHAPES_MASK; 901 902 query_size++; 903 } 904 905 if (f11->has_query11) { 906 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 907 if (rc < 0) 908 return rc; 909 910 sensor_query->has_z_tuning = 911 !!(query_buf[0] & RMI_F11_HAS_Z_TUNING); 912 sensor_query->has_algorithm_selection = 913 !!(query_buf[0] & RMI_F11_HAS_ALGORITHM_SELECTION); 914 sensor_query->has_w_tuning = 915 !!(query_buf[0] & RMI_F11_HAS_W_TUNING); 916 sensor_query->has_pitch_info = 917 !!(query_buf[0] & RMI_F11_HAS_PITCH_INFO); 918 sensor_query->has_finger_size = 919 !!(query_buf[0] & RMI_F11_HAS_FINGER_SIZE); 920 sensor_query->has_segmentation_aggressiveness = 921 !!(query_buf[0] & 922 RMI_F11_HAS_SEGMENTATION_AGGRESSIVENESS); 923 sensor_query->has_XY_clip = 924 !!(query_buf[0] & RMI_F11_HAS_XY_CLIP); 925 sensor_query->has_drumming_filter = 926 !!(query_buf[0] & RMI_F11_HAS_DRUMMING_FILTER); 927 928 query_size++; 929 } 930 931 if (f11->has_query12) { 932 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 933 if (rc < 0) 934 return rc; 935 936 sensor_query->has_gapless_finger = 937 !!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER); 938 sensor_query->has_gapless_finger_tuning = 939 !!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER_TUNING); 940 sensor_query->has_8bit_w = 941 !!(query_buf[0] & RMI_F11_HAS_8BIT_W); 942 sensor_query->has_adjustable_mapping = 943 !!(query_buf[0] & RMI_F11_HAS_ADJUSTABLE_MAPPING); 944 sensor_query->has_info2 = 945 !!(query_buf[0] & RMI_F11_HAS_INFO2); 946 sensor_query->has_physical_props = 947 !!(query_buf[0] & RMI_F11_HAS_PHYSICAL_PROPS); 948 sensor_query->has_finger_limit = 949 !!(query_buf[0] & RMI_F11_HAS_FINGER_LIMIT); 950 sensor_query->has_linear_coeff_2 = 951 !!(query_buf[0] & RMI_F11_HAS_LINEAR_COEFF); 952 953 query_size++; 954 } 955 956 if (sensor_query->has_jitter_filter) { 957 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 958 if (rc < 0) 959 return rc; 960 961 sensor_query->jitter_window_size = query_buf[0] & 962 RMI_F11_JITTER_WINDOW_MASK; 963 sensor_query->jitter_filter_type = (query_buf[0] & 964 RMI_F11_JITTER_FILTER_MASK) >> 965 RMI_F11_JITTER_FILTER_SHIFT; 966 967 query_size++; 968 } 969 970 if (sensor_query->has_info2) { 971 rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); 972 if (rc < 0) 973 return rc; 974 975 sensor_query->light_control = 976 query_buf[0] & RMI_F11_LIGHT_CONTROL_MASK; 977 sensor_query->is_clear = 978 !!(query_buf[0] & RMI_F11_IS_CLEAR); 979 sensor_query->clickpad_props = 980 (query_buf[0] & RMI_F11_CLICKPAD_PROPS_MASK) >> 981 RMI_F11_CLICKPAD_PROPS_SHIFT; 982 sensor_query->mouse_buttons = 983 (query_buf[0] & RMI_F11_MOUSE_BUTTONS_MASK) >> 984 RMI_F11_MOUSE_BUTTONS_SHIFT; 985 sensor_query->has_advanced_gestures = 986 !!(query_buf[0] & RMI_F11_HAS_ADVANCED_GESTURES); 987 988 query_size++; 989 } 990 991 if (sensor_query->has_physical_props) { 992 rc = rmi_read_block(rmi_dev, query_base_addr 993 + query_size, query_buf, 4); 994 if (rc < 0) 995 return rc; 996 997 sensor_query->x_sensor_size_mm = 998 (query_buf[0] | (query_buf[1] << 8)) / 10; 999 sensor_query->y_sensor_size_mm = 1000 (query_buf[2] | (query_buf[3] << 8)) / 10; 1001 1002 /* 1003 * query 15 - 18 contain the size of the sensor 1004 * and query 19 - 26 contain bezel dimensions 1005 */ 1006 query_size += 12; 1007 } 1008 1009 if (f11->has_query27) 1010 ++query_size; 1011 1012 if (f11->has_query28) { 1013 rc = rmi_read(rmi_dev, query_base_addr + query_size, 1014 query_buf); 1015 if (rc < 0) 1016 return rc; 1017 1018 has_query36 = !!(query_buf[0] & BIT(6)); 1019 } 1020 1021 if (has_query36) { 1022 query_size += 2; 1023 rc = rmi_read(rmi_dev, query_base_addr + query_size, 1024 query_buf); 1025 if (rc < 0) 1026 return rc; 1027 1028 if (!!(query_buf[0] & BIT(5))) 1029 f11->has_acm = true; 1030 } 1031 1032 return query_size; 1033 } 1034 1035 static int rmi_f11_initialize(struct rmi_function *fn) 1036 { 1037 struct rmi_device *rmi_dev = fn->rmi_dev; 1038 struct f11_data *f11; 1039 struct f11_2d_ctrl *ctrl; 1040 u8 query_offset; 1041 u16 query_base_addr; 1042 u16 control_base_addr; 1043 u16 max_x_pos, max_y_pos; 1044 int rc; 1045 const struct rmi_device_platform_data *pdata = 1046 rmi_get_platform_data(rmi_dev); 1047 struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); 1048 struct rmi_2d_sensor *sensor; 1049 u8 buf; 1050 int mask_size; 1051 1052 rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Initializing F11 values.\n"); 1053 1054 mask_size = BITS_TO_LONGS(drvdata->irq_count) * sizeof(unsigned long); 1055 1056 /* 1057 ** init instance data, fill in values and create any sysfs files 1058 */ 1059 f11 = devm_kzalloc(&fn->dev, sizeof(struct f11_data) + mask_size * 2, 1060 GFP_KERNEL); 1061 if (!f11) 1062 return -ENOMEM; 1063 1064 if (fn->dev.of_node) { 1065 rc = rmi_2d_sensor_of_probe(&fn->dev, &f11->sensor_pdata); 1066 if (rc) 1067 return rc; 1068 } else { 1069 f11->sensor_pdata = pdata->sensor_pdata; 1070 } 1071 1072 f11->rezero_wait_ms = f11->sensor_pdata.rezero_wait; 1073 1074 f11->abs_mask = (unsigned long *)((char *)f11 1075 + sizeof(struct f11_data)); 1076 f11->rel_mask = (unsigned long *)((char *)f11 1077 + sizeof(struct f11_data) + mask_size); 1078 1079 set_bit(fn->irq_pos, f11->abs_mask); 1080 set_bit(fn->irq_pos + 1, f11->rel_mask); 1081 1082 query_base_addr = fn->fd.query_base_addr; 1083 control_base_addr = fn->fd.control_base_addr; 1084 1085 rc = rmi_read(rmi_dev, query_base_addr, &buf); 1086 if (rc < 0) 1087 return rc; 1088 1089 f11->has_query9 = !!(buf & RMI_F11_HAS_QUERY9); 1090 f11->has_query11 = !!(buf & RMI_F11_HAS_QUERY11); 1091 f11->has_query12 = !!(buf & RMI_F11_HAS_QUERY12); 1092 f11->has_query27 = !!(buf & RMI_F11_HAS_QUERY27); 1093 f11->has_query28 = !!(buf & RMI_F11_HAS_QUERY28); 1094 1095 query_offset = (query_base_addr + 1); 1096 sensor = &f11->sensor; 1097 sensor->fn = fn; 1098 1099 rc = rmi_f11_get_query_parameters(rmi_dev, f11, 1100 &f11->sens_query, query_offset); 1101 if (rc < 0) 1102 return rc; 1103 query_offset += rc; 1104 1105 rc = f11_read_control_regs(fn, &f11->dev_controls, 1106 control_base_addr); 1107 if (rc < 0) { 1108 dev_err(&fn->dev, 1109 "Failed to read F11 control params.\n"); 1110 return rc; 1111 } 1112 1113 if (f11->sens_query.has_info2) { 1114 if (f11->sens_query.is_clear) 1115 f11->sensor.sensor_type = rmi_sensor_touchscreen; 1116 else 1117 f11->sensor.sensor_type = rmi_sensor_touchpad; 1118 } 1119 1120 sensor->report_abs = f11->sens_query.has_abs; 1121 1122 sensor->axis_align = 1123 f11->sensor_pdata.axis_align; 1124 1125 sensor->topbuttonpad = f11->sensor_pdata.topbuttonpad; 1126 sensor->kernel_tracking = f11->sensor_pdata.kernel_tracking; 1127 sensor->dmax = f11->sensor_pdata.dmax; 1128 sensor->dribble = f11->sensor_pdata.dribble; 1129 sensor->palm_detect = f11->sensor_pdata.palm_detect; 1130 1131 if (f11->sens_query.has_physical_props) { 1132 sensor->x_mm = f11->sens_query.x_sensor_size_mm; 1133 sensor->y_mm = f11->sens_query.y_sensor_size_mm; 1134 } else { 1135 sensor->x_mm = f11->sensor_pdata.x_mm; 1136 sensor->y_mm = f11->sensor_pdata.y_mm; 1137 } 1138 1139 if (sensor->sensor_type == rmi_sensor_default) 1140 sensor->sensor_type = 1141 f11->sensor_pdata.sensor_type; 1142 1143 sensor->report_abs = sensor->report_abs 1144 && !(f11->sensor_pdata.disable_report_mask 1145 & RMI_F11_DISABLE_ABS_REPORT); 1146 1147 if (!sensor->report_abs) 1148 /* 1149 * If device doesn't have abs or if it has been disables 1150 * fallback to reporting rel data. 1151 */ 1152 sensor->report_rel = f11->sens_query.has_rel; 1153 1154 rc = rmi_read_block(rmi_dev, 1155 control_base_addr + F11_CTRL_SENSOR_MAX_X_POS_OFFSET, 1156 (u8 *)&max_x_pos, sizeof(max_x_pos)); 1157 if (rc < 0) 1158 return rc; 1159 1160 rc = rmi_read_block(rmi_dev, 1161 control_base_addr + F11_CTRL_SENSOR_MAX_Y_POS_OFFSET, 1162 (u8 *)&max_y_pos, sizeof(max_y_pos)); 1163 if (rc < 0) 1164 return rc; 1165 1166 sensor->max_x = max_x_pos; 1167 sensor->max_y = max_y_pos; 1168 1169 rc = f11_2d_construct_data(f11); 1170 if (rc < 0) 1171 return rc; 1172 1173 if (f11->has_acm) 1174 f11->sensor.attn_size += f11->sensor.nbr_fingers * 2; 1175 1176 /* allocate the in-kernel tracking buffers */ 1177 sensor->tracking_pos = devm_kcalloc(&fn->dev, 1178 sensor->nbr_fingers, sizeof(struct input_mt_pos), 1179 GFP_KERNEL); 1180 sensor->tracking_slots = devm_kcalloc(&fn->dev, 1181 sensor->nbr_fingers, sizeof(int), GFP_KERNEL); 1182 sensor->objs = devm_kcalloc(&fn->dev, 1183 sensor->nbr_fingers, 1184 sizeof(struct rmi_2d_sensor_abs_object), 1185 GFP_KERNEL); 1186 if (!sensor->tracking_pos || !sensor->tracking_slots || !sensor->objs) 1187 return -ENOMEM; 1188 1189 ctrl = &f11->dev_controls; 1190 if (sensor->axis_align.delta_x_threshold) 1191 ctrl->ctrl0_11[RMI_F11_DELTA_X_THRESHOLD] = 1192 sensor->axis_align.delta_x_threshold; 1193 1194 if (sensor->axis_align.delta_y_threshold) 1195 ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] = 1196 sensor->axis_align.delta_y_threshold; 1197 1198 if (f11->sens_query.has_dribble) { 1199 switch (sensor->dribble) { 1200 case RMI_REG_STATE_OFF: 1201 ctrl->ctrl0_11[0] &= ~BIT(6); 1202 break; 1203 case RMI_REG_STATE_ON: 1204 ctrl->ctrl0_11[0] |= BIT(6); 1205 break; 1206 case RMI_REG_STATE_DEFAULT: 1207 default: 1208 break; 1209 } 1210 } 1211 1212 if (f11->sens_query.has_palm_det) { 1213 switch (sensor->palm_detect) { 1214 case RMI_REG_STATE_OFF: 1215 ctrl->ctrl0_11[11] &= ~BIT(0); 1216 break; 1217 case RMI_REG_STATE_ON: 1218 ctrl->ctrl0_11[11] |= BIT(0); 1219 break; 1220 case RMI_REG_STATE_DEFAULT: 1221 default: 1222 break; 1223 } 1224 } 1225 1226 rc = f11_write_control_regs(fn, &f11->sens_query, 1227 &f11->dev_controls, fn->fd.control_base_addr); 1228 if (rc) 1229 dev_warn(&fn->dev, "Failed to write control registers\n"); 1230 1231 mutex_init(&f11->dev_controls_mutex); 1232 1233 dev_set_drvdata(&fn->dev, f11); 1234 1235 return 0; 1236 } 1237 1238 static int rmi_f11_config(struct rmi_function *fn) 1239 { 1240 struct f11_data *f11 = dev_get_drvdata(&fn->dev); 1241 struct rmi_driver *drv = fn->rmi_dev->driver; 1242 struct rmi_2d_sensor *sensor = &f11->sensor; 1243 int rc; 1244 1245 if (!sensor->report_abs) 1246 drv->clear_irq_bits(fn->rmi_dev, f11->abs_mask); 1247 else 1248 drv->set_irq_bits(fn->rmi_dev, f11->abs_mask); 1249 1250 if (!sensor->report_rel) 1251 drv->clear_irq_bits(fn->rmi_dev, f11->rel_mask); 1252 else 1253 drv->set_irq_bits(fn->rmi_dev, f11->rel_mask); 1254 1255 rc = f11_write_control_regs(fn, &f11->sens_query, 1256 &f11->dev_controls, fn->fd.query_base_addr); 1257 if (rc < 0) 1258 return rc; 1259 1260 return 0; 1261 } 1262 1263 static irqreturn_t rmi_f11_attention(int irq, void *ctx) 1264 { 1265 struct rmi_function *fn = ctx; 1266 struct rmi_device *rmi_dev = fn->rmi_dev; 1267 struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); 1268 struct f11_data *f11 = dev_get_drvdata(&fn->dev); 1269 u16 data_base_addr = fn->fd.data_base_addr; 1270 int error; 1271 int valid_bytes = f11->sensor.pkt_size; 1272 1273 if (drvdata->attn_data.data) { 1274 /* 1275 * The valid data in the attention report is less then 1276 * expected. Only process the complete fingers. 1277 */ 1278 if (f11->sensor.attn_size > drvdata->attn_data.size) 1279 valid_bytes = drvdata->attn_data.size; 1280 else 1281 valid_bytes = f11->sensor.attn_size; 1282 memcpy(f11->sensor.data_pkt, drvdata->attn_data.data, 1283 valid_bytes); 1284 drvdata->attn_data.data += valid_bytes; 1285 drvdata->attn_data.size -= valid_bytes; 1286 } else { 1287 error = rmi_read_block(rmi_dev, 1288 data_base_addr, f11->sensor.data_pkt, 1289 f11->sensor.pkt_size); 1290 if (error < 0) 1291 return IRQ_RETVAL(error); 1292 } 1293 1294 rmi_f11_finger_handler(f11, &f11->sensor, valid_bytes); 1295 1296 return IRQ_HANDLED; 1297 } 1298 1299 static int rmi_f11_resume(struct rmi_function *fn) 1300 { 1301 struct f11_data *f11 = dev_get_drvdata(&fn->dev); 1302 int error; 1303 1304 rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Resuming...\n"); 1305 if (!f11->rezero_wait_ms) 1306 return 0; 1307 1308 mdelay(f11->rezero_wait_ms); 1309 1310 error = rmi_write(fn->rmi_dev, fn->fd.command_base_addr, 1311 RMI_F11_REZERO); 1312 if (error) { 1313 dev_err(&fn->dev, 1314 "%s: failed to issue rezero command, error = %d.", 1315 __func__, error); 1316 return error; 1317 } 1318 1319 return 0; 1320 } 1321 1322 static int rmi_f11_probe(struct rmi_function *fn) 1323 { 1324 int error; 1325 struct f11_data *f11; 1326 1327 error = rmi_f11_initialize(fn); 1328 if (error) 1329 return error; 1330 1331 f11 = dev_get_drvdata(&fn->dev); 1332 error = rmi_2d_sensor_configure_input(fn, &f11->sensor); 1333 if (error) 1334 return error; 1335 1336 return 0; 1337 } 1338 1339 struct rmi_function_handler rmi_f11_handler = { 1340 .driver = { 1341 .name = "rmi4_f11", 1342 }, 1343 .func = 0x11, 1344 .probe = rmi_f11_probe, 1345 .config = rmi_f11_config, 1346 .attention = rmi_f11_attention, 1347 .resume = rmi_f11_resume, 1348 }; 1349