1/*
2 * Copyright (c) 2011-2015 Synaptics Incorporated
3 * Copyright (c) 2011 Unixphere
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 */
9
10#include <linux/kernel.h>
11#include <linux/delay.h>
12#include <linux/device.h>
13#include <linux/input.h>
14#include <linux/input/mt.h>
15#include <linux/rmi.h>
16#include <linux/slab.h>
17#include <linux/of.h>
18#include "rmi_driver.h"
19#include "rmi_2d_sensor.h"
20
21#define F11_MAX_NUM_OF_FINGERS 10
22#define F11_MAX_NUM_OF_TOUCH_SHAPES 16
23
24#define FINGER_STATE_MASK 0x03
25
26#define F11_CTRL_SENSOR_MAX_X_POS_OFFSET 6
27#define F11_CTRL_SENSOR_MAX_Y_POS_OFFSET 8
28
29#define DEFAULT_XY_MAX 9999
30#define DEFAULT_MAX_ABS_MT_PRESSURE 255
31#define DEFAULT_MAX_ABS_MT_TOUCH 15
32#define DEFAULT_MAX_ABS_MT_ORIENTATION 1
33#define DEFAULT_MIN_ABS_MT_TRACKING_ID 1
34#define DEFAULT_MAX_ABS_MT_TRACKING_ID 10
35
36/** A note about RMI4 F11 register structure.
37 *
38 * The properties for
39 * a given sensor are described by its query registers. The number of query
40 * registers and the layout of their contents are described by the F11 device
41 * queries as well as the sensor query information.
42 *
43 * Similarly, each sensor has control registers that govern its behavior. The
44 * size and layout of the control registers for a given sensor can be determined
45 * by parsing that sensors query registers.
46 *
47 * And in a likewise fashion, each sensor has data registers where it reports
48 * its touch data and other interesting stuff. The size and layout of a
49 * sensors data registers must be determined by parsing its query registers.
50 *
51 * The short story is that we need to read and parse a lot of query
52 * registers in order to determine the attributes of a sensor. Then
53 * we need to use that data to compute the size of the control and data
54 * registers for sensor.
55 *
56 * The end result is that we have a number of structs that aren't used to
57 * directly generate the input events, but their size, location and contents
58 * are critical to determining where the data we are interested in lives.
59 *
60 * At this time, the driver does not yet comprehend all possible F11
61 * configuration options, but it should be sufficient to cover 99% of RMI4 F11
62 * devices currently in the field.
63 */
64
65/* maximum ABS_MT_POSITION displacement (in mm) */
66#define DMAX 10
67
68/**
69 * @rezero - writing this to the F11 command register will cause the sensor to
70 * calibrate to the current capacitive state.
71 */
72#define RMI_F11_REZERO 0x01
73
74#define RMI_F11_HAS_QUERY9 (1 << 3)
75#define RMI_F11_HAS_QUERY11 (1 << 4)
76#define RMI_F11_HAS_QUERY12 (1 << 5)
77#define RMI_F11_HAS_QUERY27 (1 << 6)
78#define RMI_F11_HAS_QUERY28 (1 << 7)
79
80/** Defs for Query 1 */
81
82#define RMI_F11_NR_FINGERS_MASK 0x07
83#define RMI_F11_HAS_REL (1 << 3)
84#define RMI_F11_HAS_ABS (1 << 4)
85#define RMI_F11_HAS_GESTURES (1 << 5)
86#define RMI_F11_HAS_SENSITIVITY_ADJ (1 << 6)
87#define RMI_F11_CONFIGURABLE (1 << 7)
88
89/** Defs for Query 2, 3, and 4. */
90#define RMI_F11_NR_ELECTRODES_MASK 0x7F
91
92/** Defs for Query 5 */
93
94#define RMI_F11_ABS_DATA_SIZE_MASK 0x03
95#define RMI_F11_HAS_ANCHORED_FINGER (1 << 2)
96#define RMI_F11_HAS_ADJ_HYST (1 << 3)
97#define RMI_F11_HAS_DRIBBLE (1 << 4)
98#define RMI_F11_HAS_BENDING_CORRECTION (1 << 5)
99#define RMI_F11_HAS_LARGE_OBJECT_SUPPRESSION (1 << 6)
100#define RMI_F11_HAS_JITTER_FILTER (1 << 7)
101
102/** Defs for Query 7 */
103#define RMI_F11_HAS_SINGLE_TAP (1 << 0)
104#define RMI_F11_HAS_TAP_AND_HOLD (1 << 1)
105#define RMI_F11_HAS_DOUBLE_TAP (1 << 2)
106#define RMI_F11_HAS_EARLY_TAP (1 << 3)
107#define RMI_F11_HAS_FLICK (1 << 4)
108#define RMI_F11_HAS_PRESS (1 << 5)
109#define RMI_F11_HAS_PINCH (1 << 6)
110#define RMI_F11_HAS_CHIRAL (1 << 7)
111
112/** Defs for Query 8 */
113#define RMI_F11_HAS_PALM_DET (1 << 0)
114#define RMI_F11_HAS_ROTATE (1 << 1)
115#define RMI_F11_HAS_TOUCH_SHAPES (1 << 2)
116#define RMI_F11_HAS_SCROLL_ZONES (1 << 3)
117#define RMI_F11_HAS_INDIVIDUAL_SCROLL_ZONES (1 << 4)
118#define RMI_F11_HAS_MF_SCROLL (1 << 5)
119#define RMI_F11_HAS_MF_EDGE_MOTION (1 << 6)
120#define RMI_F11_HAS_MF_SCROLL_INERTIA (1 << 7)
121
122/** Defs for Query 9. */
123#define RMI_F11_HAS_PEN (1 << 0)
124#define RMI_F11_HAS_PROXIMITY (1 << 1)
125#define RMI_F11_HAS_PALM_DET_SENSITIVITY (1 << 2)
126#define RMI_F11_HAS_SUPPRESS_ON_PALM_DETECT (1 << 3)
127#define RMI_F11_HAS_TWO_PEN_THRESHOLDS (1 << 4)
128#define RMI_F11_HAS_CONTACT_GEOMETRY (1 << 5)
129#define RMI_F11_HAS_PEN_HOVER_DISCRIMINATION (1 << 6)
130#define RMI_F11_HAS_PEN_FILTERS (1 << 7)
131
132/** Defs for Query 10. */
133#define RMI_F11_NR_TOUCH_SHAPES_MASK 0x1F
134
135/** Defs for Query 11 */
136
137#define RMI_F11_HAS_Z_TUNING (1 << 0)
138#define RMI_F11_HAS_ALGORITHM_SELECTION (1 << 1)
139#define RMI_F11_HAS_W_TUNING (1 << 2)
140#define RMI_F11_HAS_PITCH_INFO (1 << 3)
141#define RMI_F11_HAS_FINGER_SIZE (1 << 4)
142#define RMI_F11_HAS_SEGMENTATION_AGGRESSIVENESS (1 << 5)
143#define RMI_F11_HAS_XY_CLIP (1 << 6)
144#define RMI_F11_HAS_DRUMMING_FILTER (1 << 7)
145
146/** Defs for Query 12. */
147
148#define RMI_F11_HAS_GAPLESS_FINGER (1 << 0)
149#define RMI_F11_HAS_GAPLESS_FINGER_TUNING (1 << 1)
150#define RMI_F11_HAS_8BIT_W (1 << 2)
151#define RMI_F11_HAS_ADJUSTABLE_MAPPING (1 << 3)
152#define RMI_F11_HAS_INFO2 (1 << 4)
153#define RMI_F11_HAS_PHYSICAL_PROPS (1 << 5)
154#define RMI_F11_HAS_FINGER_LIMIT (1 << 6)
155#define RMI_F11_HAS_LINEAR_COEFF (1 << 7)
156
157/** Defs for Query 13. */
158
159#define RMI_F11_JITTER_WINDOW_MASK 0x1F
160#define RMI_F11_JITTER_FILTER_MASK 0x60
161#define RMI_F11_JITTER_FILTER_SHIFT 5
162
163/** Defs for Query 14. */
164#define RMI_F11_LIGHT_CONTROL_MASK 0x03
165#define RMI_F11_IS_CLEAR (1 << 2)
166#define RMI_F11_CLICKPAD_PROPS_MASK 0x18
167#define RMI_F11_CLICKPAD_PROPS_SHIFT 3
168#define RMI_F11_MOUSE_BUTTONS_MASK 0x60
169#define RMI_F11_MOUSE_BUTTONS_SHIFT 5
170#define RMI_F11_HAS_ADVANCED_GESTURES (1 << 7)
171
172#define RMI_F11_QUERY_SIZE 4
173#define RMI_F11_QUERY_GESTURE_SIZE 2
174
175#define F11_LIGHT_CTL_NONE 0x00
176#define F11_LUXPAD 0x01
177#define F11_DUAL_MODE 0x02
178
179#define F11_NOT_CLICKPAD 0x00
180#define F11_HINGED_CLICKPAD 0x01
181#define F11_UNIFORM_CLICKPAD 0x02
182
183/**
184 * Query registers 1 through 4 are always present.
185 *
186 * @nr_fingers - describes the maximum number of fingers the 2-D sensor
187 * supports.
188 * @has_rel - the sensor supports relative motion reporting.
189 * @has_abs - the sensor supports absolute poition reporting.
190 * @has_gestures - the sensor supports gesture reporting.
191 * @has_sensitivity_adjust - the sensor supports a global sensitivity
192 * adjustment.
193 * @configurable - the sensor supports various configuration options.
194 * @num_of_x_electrodes - the maximum number of electrodes the 2-D sensor
195 * supports on the X axis.
196 * @num_of_y_electrodes - the maximum number of electrodes the 2-D sensor
197 * supports on the Y axis.
198 * @max_electrodes - the total number of X and Y electrodes that may be
199 * configured.
200 *
201 * Query 5 is present if the has_abs bit is set.
202 *
203 * @abs_data_size - describes the format of data reported by the absolute
204 * data source. Only one format (the kind used here) is supported at this
205 * time.
206 * @has_anchored_finger - then the sensor supports the high-precision second
207 * finger tracking provided by the manual tracking and motion sensitivity
208 * options.
209 * @has_adjust_hyst - the difference between the finger release threshold and
210 * the touch threshold.
211 * @has_dribble - the sensor supports the generation of dribble interrupts,
212 * which may be enabled or disabled with the dribble control bit.
213 * @has_bending_correction - Bending related data registers 28 and 36, and
214 * control register 52..57 are present.
215 * @has_large_object_suppression - control register 58 and data register 28
216 * exist.
217 * @has_jitter_filter - query 13 and control 73..76 exist.
218 *
219 * Gesture information queries 7 and 8 are present if has_gestures bit is set.
220 *
221 * @has_single_tap - a basic single-tap gesture is supported.
222 * @has_tap_n_hold - tap-and-hold gesture is supported.
223 * @has_double_tap - double-tap gesture is supported.
224 * @has_early_tap - early tap is supported and reported as soon as the finger
225 * lifts for any tap event that could be interpreted as either a single tap
226 * or as the first tap of a double-tap or tap-and-hold gesture.
227 * @has_flick - flick detection is supported.
228 * @has_press - press gesture reporting is supported.
229 * @has_pinch - pinch gesture detection is supported.
230 * @has_palm_det - the 2-D sensor notifies the host whenever a large conductive
231 * object such as a palm or a cheek touches the 2-D sensor.
232 * @has_rotate - rotation gesture detection is supported.
233 * @has_touch_shapes - TouchShapes are supported. A TouchShape is a fixed
234 * rectangular area on the sensor that behaves like a capacitive button.
235 * @has_scroll_zones - scrolling areas near the sensor edges are supported.
236 * @has_individual_scroll_zones - if 1, then 4 scroll zones are supported;
237 * if 0, then only two are supported.
238 * @has_mf_scroll - the multifinger_scrolling bit will be set when
239 * more than one finger is involved in a scrolling action.
240 *
241 * Convenience for checking bytes in the gesture info registers. This is done
242 * often enough that we put it here to declutter the conditionals
243 *
244 * @query7_nonzero - true if none of the query 7 bits are set
245 * @query8_nonzero - true if none of the query 8 bits are set
246 *
247 * Query 9 is present if the has_query9 is set.
248 *
249 * @has_pen - detection of a stylus is supported and registers F11_2D_Ctrl20
250 * and F11_2D_Ctrl21 exist.
251 * @has_proximity - detection of fingers near the sensor is supported and
252 * registers F11_2D_Ctrl22 through F11_2D_Ctrl26 exist.
253 * @has_palm_det_sensitivity - the sensor supports the palm detect sensitivity
254 * feature and register F11_2D_Ctrl27 exists.
255 * @has_two_pen_thresholds - is has_pen is also set, then F11_2D_Ctrl35 exists.
256 * @has_contact_geometry - the sensor supports the use of contact geometry to
257 * map absolute X and Y target positions and registers F11_2D_Data18
258 * through F11_2D_Data27 exist.
259 *
260 * Touch shape info (query 10) is present if has_touch_shapes is set.
261 *
262 * @nr_touch_shapes - the total number of touch shapes supported.
263 *
264 * Query 11 is present if the has_query11 bit is set in query 0.
265 *
266 * @has_z_tuning - if set, the sensor supports Z tuning and registers
267 * F11_2D_Ctrl29 through F11_2D_Ctrl33 exist.
268 * @has_algorithm_selection - controls choice of noise suppression algorithm
269 * @has_w_tuning - the sensor supports Wx and Wy scaling and registers
270 * F11_2D_Ctrl36 through F11_2D_Ctrl39 exist.
271 * @has_pitch_info - the X and Y pitches of the sensor electrodes can be
272 * configured and registers F11_2D_Ctrl40 and F11_2D_Ctrl41 exist.
273 * @has_finger_size - the default finger width settings for the
274 * sensor can be configured and registers F11_2D_Ctrl42 through F11_2D_Ctrl44
275 * exist.
276 * @has_segmentation_aggressiveness - the sensor’s ability to distinguish
277 * multiple objects close together can be configured and register F11_2D_Ctrl45
278 * exists.
279 * @has_XY_clip - the inactive outside borders of the sensor can be
280 * configured and registers F11_2D_Ctrl46 through F11_2D_Ctrl49 exist.
281 * @has_drumming_filter - the sensor can be configured to distinguish
282 * between a fast flick and a quick drumming movement and registers
283 * F11_2D_Ctrl50 and F11_2D_Ctrl51 exist.
284 *
285 * Query 12 is present if hasQuery12 bit is set.
286 *
287 * @has_gapless_finger - control registers relating to gapless finger are
288 * present.
289 * @has_gapless_finger_tuning - additional control and data registers relating
290 * to gapless finger are present.
291 * @has_8bit_w - larger W value reporting is supported.
292 * @has_adjustable_mapping - TBD
293 * @has_info2 - the general info query14 is present
294 * @has_physical_props - additional queries describing the physical properties
295 * of the sensor are present.
296 * @has_finger_limit - indicates that F11 Ctrl 80 exists.
297 * @has_linear_coeff - indicates that F11 Ctrl 81 exists.
298 *
299 * Query 13 is present if Query 5's has_jitter_filter bit is set.
300 * @jitter_window_size - used by Design Studio 4.
301 * @jitter_filter_type - used by Design Studio 4.
302 *
303 * Query 14 is present if query 12's has_general_info2 flag is set.
304 *
305 * @light_control - Indicates what light/led control features are present, if
306 * any.
307 * @is_clear - if set, this is a clear sensor (indicating direct pointing
308 * application), otherwise it's opaque (indicating indirect pointing).
309 * @clickpad_props - specifies if this is a clickpad, and if so what sort of
310 * mechanism it uses
311 * @mouse_buttons - specifies the number of mouse buttons present (if any).
312 * @has_advanced_gestures - advanced driver gestures are supported.
313 */
314struct f11_2d_sensor_queries {
315 /* query1 */
316 u8 nr_fingers;
317 bool has_rel;
318 bool has_abs;
319 bool has_gestures;
320 bool has_sensitivity_adjust;
321 bool configurable;
322
323 /* query2 */
324 u8 nr_x_electrodes;
325
326 /* query3 */
327 u8 nr_y_electrodes;
328
329 /* query4 */
330 u8 max_electrodes;
331
332 /* query5 */
333 u8 abs_data_size;
334 bool has_anchored_finger;
335 bool has_adj_hyst;
336 bool has_dribble;
337 bool has_bending_correction;
338 bool has_large_object_suppression;
339 bool has_jitter_filter;
340
341 u8 f11_2d_query6;
342
343 /* query 7 */
344 bool has_single_tap;
345 bool has_tap_n_hold;
346 bool has_double_tap;
347 bool has_early_tap;
348 bool has_flick;
349 bool has_press;
350 bool has_pinch;
351 bool has_chiral;
352
353 bool query7_nonzero;
354
355 /* query 8 */
356 bool has_palm_det;
357 bool has_rotate;
358 bool has_touch_shapes;
359 bool has_scroll_zones;
360 bool has_individual_scroll_zones;
361 bool has_mf_scroll;
362 bool has_mf_edge_motion;
363 bool has_mf_scroll_inertia;
364
365 bool query8_nonzero;
366
367 /* Query 9 */
368 bool has_pen;
369 bool has_proximity;
370 bool has_palm_det_sensitivity;
371 bool has_suppress_on_palm_detect;
372 bool has_two_pen_thresholds;
373 bool has_contact_geometry;
374 bool has_pen_hover_discrimination;
375 bool has_pen_filters;
376
377 /* Query 10 */
378 u8 nr_touch_shapes;
379
380 /* Query 11. */
381 bool has_z_tuning;
382 bool has_algorithm_selection;
383 bool has_w_tuning;
384 bool has_pitch_info;
385 bool has_finger_size;
386 bool has_segmentation_aggressiveness;
387 bool has_XY_clip;
388 bool has_drumming_filter;
389
390 /* Query 12 */
391 bool has_gapless_finger;
392 bool has_gapless_finger_tuning;
393 bool has_8bit_w;
394 bool has_adjustable_mapping;
395 bool has_info2;
396 bool has_physical_props;
397 bool has_finger_limit;
398 bool has_linear_coeff_2;
399
400 /* Query 13 */
401 u8 jitter_window_size;
402 u8 jitter_filter_type;
403
404 /* Query 14 */
405 u8 light_control;
406 bool is_clear;
407 u8 clickpad_props;
408 u8 mouse_buttons;
409 bool has_advanced_gestures;
410
411 /* Query 15 - 18 */
412 u16 x_sensor_size_mm;
413 u16 y_sensor_size_mm;
414};
415
416/* Defs for Ctrl0. */
417#define RMI_F11_REPORT_MODE_MASK 0x07
418#define RMI_F11_ABS_POS_FILT (1 << 3)
419#define RMI_F11_REL_POS_FILT (1 << 4)
420#define RMI_F11_REL_BALLISTICS (1 << 5)
421#define RMI_F11_DRIBBLE (1 << 6)
422#define RMI_F11_REPORT_BEYOND_CLIP (1 << 7)
423
424/* Defs for Ctrl1. */
425#define RMI_F11_PALM_DETECT_THRESH_MASK 0x0F
426#define RMI_F11_MOTION_SENSITIVITY_MASK 0x30
427#define RMI_F11_MANUAL_TRACKING (1 << 6)
428#define RMI_F11_MANUAL_TRACKED_FINGER (1 << 7)
429
430#define RMI_F11_DELTA_X_THRESHOLD 2
431#define RMI_F11_DELTA_Y_THRESHOLD 3
432
433#define RMI_F11_CTRL_REG_COUNT 12
434
435struct f11_2d_ctrl {
436 u8 ctrl0_11[RMI_F11_CTRL_REG_COUNT];
437 u16 ctrl0_11_address;
438};
439
440#define RMI_F11_ABS_BYTES 5
441#define RMI_F11_REL_BYTES 2
442
443/* Defs for Data 8 */
444
445#define RMI_F11_SINGLE_TAP (1 << 0)
446#define RMI_F11_TAP_AND_HOLD (1 << 1)
447#define RMI_F11_DOUBLE_TAP (1 << 2)
448#define RMI_F11_EARLY_TAP (1 << 3)
449#define RMI_F11_FLICK (1 << 4)
450#define RMI_F11_PRESS (1 << 5)
451#define RMI_F11_PINCH (1 << 6)
452
453/* Defs for Data 9 */
454
455#define RMI_F11_PALM_DETECT (1 << 0)
456#define RMI_F11_ROTATE (1 << 1)
457#define RMI_F11_SHAPE (1 << 2)
458#define RMI_F11_SCROLLZONE (1 << 3)
459#define RMI_F11_GESTURE_FINGER_COUNT_MASK 0x70
460
461/** Handy pointers into our data buffer.
462 *
463 * @f_state - start of finger state registers.
464 * @abs_pos - start of absolute position registers (if present).
465 * @rel_pos - start of relative data registers (if present).
466 * @gest_1 - gesture flags (if present).
467 * @gest_2 - gesture flags & finger count (if present).
468 * @pinch - pinch motion register (if present).
469 * @flick - flick distance X & Y, flick time (if present).
470 * @rotate - rotate motion and finger separation.
471 * @multi_scroll - chiral deltas for X and Y (if present).
472 * @scroll_zones - scroll deltas for 4 regions (if present).
473 */
474struct f11_2d_data {
475 u8 *f_state;
476 u8 *abs_pos;
477 s8 *rel_pos;
478 u8 *gest_1;
479 u8 *gest_2;
480 s8 *pinch;
481 u8 *flick;
482 u8 *rotate;
483 u8 *shapes;
484 s8 *multi_scroll;
485 s8 *scroll_zones;
486};
487
488/** Data pertaining to F11 in general. For per-sensor data, see struct
489 * f11_2d_sensor.
490 *
491 * @dev_query - F11 device specific query registers.
492 * @dev_controls - F11 device specific control registers.
493 * @dev_controls_mutex - lock for the control registers.
494 * @rezero_wait_ms - if nonzero, upon resume we will wait this many
495 * milliseconds before rezeroing the sensor(s). This is useful in systems with
496 * poor electrical behavior on resume, where the initial calibration of the
497 * sensor(s) coming out of sleep state may be bogus.
498 * @sensors - per sensor data structures.
499 */
500struct f11_data {
501 bool has_query9;
502 bool has_query11;
503 bool has_query12;
504 bool has_query27;
505 bool has_query28;
506 bool has_acm;
507 struct f11_2d_ctrl dev_controls;
508 struct mutex dev_controls_mutex;
509 u16 rezero_wait_ms;
510 struct rmi_2d_sensor sensor;
511 struct f11_2d_sensor_queries sens_query;
512 struct f11_2d_data data;
513 struct rmi_2d_sensor_platform_data sensor_pdata;
514 unsigned long *abs_mask;
515 unsigned long *rel_mask;
516 unsigned long *result_bits;
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 * 3,
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 f11->result_bits = (unsigned long *)((char *)f11
1083 + sizeof(struct f11_data) + mask_size * 2);
1084
1085 set_bit(fn->irq_pos, f11->abs_mask);
1086 set_bit(fn->irq_pos + 1, f11->rel_mask);
1087
1088 query_base_addr = fn->fd.query_base_addr;
1089 control_base_addr = fn->fd.control_base_addr;
1090
1091 rc = rmi_read(rmi_dev, query_base_addr, &buf);
1092 if (rc < 0)
1093 return rc;
1094
1095 f11->has_query9 = !!(buf & RMI_F11_HAS_QUERY9);
1096 f11->has_query11 = !!(buf & RMI_F11_HAS_QUERY11);
1097 f11->has_query12 = !!(buf & RMI_F11_HAS_QUERY12);
1098 f11->has_query27 = !!(buf & RMI_F11_HAS_QUERY27);
1099 f11->has_query28 = !!(buf & RMI_F11_HAS_QUERY28);
1100
1101 query_offset = (query_base_addr + 1);
1102 sensor = &f11->sensor;
1103 sensor->fn = fn;
1104
1105 rc = rmi_f11_get_query_parameters(rmi_dev, f11,
1106 &f11->sens_query, query_offset);
1107 if (rc < 0)
1108 return rc;
1109 query_offset += rc;
1110
1111 rc = f11_read_control_regs(fn, &f11->dev_controls,
1112 control_base_addr);
1113 if (rc < 0) {
1114 dev_err(&fn->dev,
1115 "Failed to read F11 control params.\n");
1116 return rc;
1117 }
1118
1119 if (f11->sens_query.has_info2) {
1120 if (f11->sens_query.is_clear)
1121 f11->sensor.sensor_type = rmi_sensor_touchscreen;
1122 else
1123 f11->sensor.sensor_type = rmi_sensor_touchpad;
1124 }
1125
1126 sensor->report_abs = f11->sens_query.has_abs;
1127
1128 sensor->axis_align =
1129 f11->sensor_pdata.axis_align;
1130
1131 sensor->topbuttonpad = f11->sensor_pdata.topbuttonpad;
1132 sensor->kernel_tracking = f11->sensor_pdata.kernel_tracking;
1133 sensor->dmax = f11->sensor_pdata.dmax;
1134 sensor->dribble = f11->sensor_pdata.dribble;
1135 sensor->palm_detect = f11->sensor_pdata.palm_detect;
1136
1137 if (f11->sens_query.has_physical_props) {
1138 sensor->x_mm = f11->sens_query.x_sensor_size_mm;
1139 sensor->y_mm = f11->sens_query.y_sensor_size_mm;
1140 } else {
1141 sensor->x_mm = f11->sensor_pdata.x_mm;
1142 sensor->y_mm = f11->sensor_pdata.y_mm;
1143 }
1144
1145 if (sensor->sensor_type == rmi_sensor_default)
1146 sensor->sensor_type =
1147 f11->sensor_pdata.sensor_type;
1148
1149 sensor->report_abs = sensor->report_abs
1150 && !(f11->sensor_pdata.disable_report_mask
1151 & RMI_F11_DISABLE_ABS_REPORT);
1152
1153 if (!sensor->report_abs)
1154 /*
1155 * If device doesn't have abs or if it has been disables
1156 * fallback to reporting rel data.
1157 */
1158 sensor->report_rel = f11->sens_query.has_rel;
1159
1160 rc = rmi_read_block(rmi_dev,
1161 control_base_addr + F11_CTRL_SENSOR_MAX_X_POS_OFFSET,
1162 (u8 *)&max_x_pos, sizeof(max_x_pos));
1163 if (rc < 0)
1164 return rc;
1165
1166 rc = rmi_read_block(rmi_dev,
1167 control_base_addr + F11_CTRL_SENSOR_MAX_Y_POS_OFFSET,
1168 (u8 *)&max_y_pos, sizeof(max_y_pos));
1169 if (rc < 0)
1170 return rc;
1171
1172 sensor->max_x = max_x_pos;
1173 sensor->max_y = max_y_pos;
1174
1175 rc = f11_2d_construct_data(f11);
1176 if (rc < 0)
1177 return rc;
1178
1179 if (f11->has_acm)
1180 f11->sensor.attn_size += f11->sensor.nbr_fingers * 2;
1181
1182 /* allocate the in-kernel tracking buffers */
1183 sensor->tracking_pos = devm_kcalloc(&fn->dev,
1184 sensor->nbr_fingers, sizeof(struct input_mt_pos),
1185 GFP_KERNEL);
1186 sensor->tracking_slots = devm_kcalloc(&fn->dev,
1187 sensor->nbr_fingers, sizeof(int), GFP_KERNEL);
1188 sensor->objs = devm_kcalloc(&fn->dev,
1189 sensor->nbr_fingers,
1190 sizeof(struct rmi_2d_sensor_abs_object),
1191 GFP_KERNEL);
1192 if (!sensor->tracking_pos || !sensor->tracking_slots || !sensor->objs)
1193 return -ENOMEM;
1194
1195 ctrl = &f11->dev_controls;
1196 if (sensor->axis_align.delta_x_threshold)
1197 ctrl->ctrl0_11[RMI_F11_DELTA_X_THRESHOLD] =
1198 sensor->axis_align.delta_x_threshold;
1199
1200 if (sensor->axis_align.delta_y_threshold)
1201 ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] =
1202 sensor->axis_align.delta_y_threshold;
1203
1204 if (f11->sens_query.has_dribble) {
1205 switch (sensor->dribble) {
1206 case RMI_REG_STATE_OFF:
1207 ctrl->ctrl0_11[0] &= ~BIT(6);
1208 break;
1209 case RMI_REG_STATE_ON:
1210 ctrl->ctrl0_11[0] |= BIT(6);
1211 break;
1212 case RMI_REG_STATE_DEFAULT:
1213 default:
1214 break;
1215 }
1216 }
1217
1218 if (f11->sens_query.has_palm_det) {
1219 switch (sensor->palm_detect) {
1220 case RMI_REG_STATE_OFF:
1221 ctrl->ctrl0_11[11] &= ~BIT(0);
1222 break;
1223 case RMI_REG_STATE_ON:
1224 ctrl->ctrl0_11[11] |= BIT(0);
1225 break;
1226 case RMI_REG_STATE_DEFAULT:
1227 default:
1228 break;
1229 }
1230 }
1231
1232 rc = f11_write_control_regs(fn, &f11->sens_query,
1233 &f11->dev_controls, fn->fd.query_base_addr);
1234 if (rc)
1235 dev_warn(&fn->dev, "Failed to write control registers\n");
1236
1237 mutex_init(&f11->dev_controls_mutex);
1238
1239 dev_set_drvdata(&fn->dev, f11);
1240
1241 return 0;
1242}
1243
1244static int rmi_f11_config(struct rmi_function *fn)
1245{
1246 struct f11_data *f11 = dev_get_drvdata(&fn->dev);
1247 struct rmi_driver *drv = fn->rmi_dev->driver;
1248 struct rmi_2d_sensor *sensor = &f11->sensor;
1249 int rc;
1250
1251 if (!sensor->report_abs)
1252 drv->clear_irq_bits(fn->rmi_dev, f11->abs_mask);
1253 else
1254 drv->set_irq_bits(fn->rmi_dev, f11->abs_mask);
1255
1256 if (!sensor->report_rel)
1257 drv->clear_irq_bits(fn->rmi_dev, f11->rel_mask);
1258 else
1259 drv->set_irq_bits(fn->rmi_dev, f11->rel_mask);
1260
1261 rc = f11_write_control_regs(fn, &f11->sens_query,
1262 &f11->dev_controls, fn->fd.query_base_addr);
1263 if (rc < 0)
1264 return rc;
1265
1266 return 0;
1267}
1268
1269static irqreturn_t rmi_f11_attention(int irq, void *ctx)
1270{
1271 struct rmi_function *fn = ctx;
1272 struct rmi_device *rmi_dev = fn->rmi_dev;
1273 struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
1274 struct f11_data *f11 = dev_get_drvdata(&fn->dev);
1275 u16 data_base_addr = fn->fd.data_base_addr;
1276 int error;
1277 int valid_bytes = f11->sensor.pkt_size;
1278
1279 if (drvdata->attn_data.data) {
1280 /*
1281 * The valid data in the attention report is less then
1282 * expected. Only process the complete fingers.
1283 */
1284 if (f11->sensor.attn_size > drvdata->attn_data.size)
1285 valid_bytes = drvdata->attn_data.size;
1286 else
1287 valid_bytes = f11->sensor.attn_size;
1288 memcpy(f11->sensor.data_pkt, drvdata->attn_data.data,
1289 valid_bytes);
1290 drvdata->attn_data.data += f11->sensor.attn_size;
1291 drvdata->attn_data.size -= f11->sensor.attn_size;
1292 } else {
1293 error = rmi_read_block(rmi_dev,
1294 data_base_addr, f11->sensor.data_pkt,
1295 f11->sensor.pkt_size);
1296 if (error < 0)
1297 return IRQ_RETVAL(error);
1298 }
1299
1300 rmi_f11_finger_handler(f11, &f11->sensor, valid_bytes);
1301
1302 return IRQ_HANDLED;
1303}
1304
1305static int rmi_f11_resume(struct rmi_function *fn)
1306{
1307 struct f11_data *f11 = dev_get_drvdata(&fn->dev);
1308 int error;
1309
1310 rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Resuming...\n");
1311 if (!f11->rezero_wait_ms)
1312 return 0;
1313
1314 mdelay(f11->rezero_wait_ms);
1315
1316 error = rmi_write(fn->rmi_dev, fn->fd.command_base_addr,
1317 RMI_F11_REZERO);
1318 if (error) {
1319 dev_err(&fn->dev,
1320 "%s: failed to issue rezero command, error = %d.",
1321 __func__, error);
1322 return error;
1323 }
1324
1325 return 0;
1326}
1327
1328static int rmi_f11_probe(struct rmi_function *fn)
1329{
1330 int error;
1331 struct f11_data *f11;
1332
1333 error = rmi_f11_initialize(fn);
1334 if (error)
1335 return error;
1336
1337 f11 = dev_get_drvdata(&fn->dev);
1338 error = rmi_2d_sensor_configure_input(fn, &f11->sensor);
1339 if (error)
1340 return error;
1341
1342 return 0;
1343}
1344
1345struct rmi_function_handler rmi_f11_handler = {
1346 .driver = {
1347 .name = "rmi4_f11",
1348 },
1349 .func = 0x11,
1350 .probe = rmi_f11_probe,
1351 .config = rmi_f11_config,
1352 .attention = rmi_f11_attention,
1353 .resume = rmi_f11_resume,
1354};
1355