xref: /openbmc/linux/drivers/input/rmi4/rmi_f11.c (revision 2d96b44f)
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  */
314 struct 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 
435 struct 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  */
474 struct 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  */
500 struct 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 
519 enum f11_finger_state {
520 	F11_NO_FINGER	= 0x00,
521 	F11_PRESENT	= 0x01,
522 	F11_INACCURATE	= 0x02,
523 	F11_RESERVED	= 0x03
524 };
525 
526 static 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 
538 static 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 
566 static 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 
572 static void rmi_f11_finger_handler(struct f11_data *f11,
573 				   struct rmi_2d_sensor *sensor,
574 				   unsigned long *irq_bits, int num_irq_regs)
575 {
576 	const u8 *f_state = f11->data.f_state;
577 	u8 finger_state;
578 	u8 i;
579 
580 	int abs_bits = bitmap_and(f11->result_bits, irq_bits, f11->abs_mask,
581 				  num_irq_regs * 8);
582 	int rel_bits = bitmap_and(f11->result_bits, irq_bits, f11->rel_mask,
583 				  num_irq_regs * 8);
584 
585 	for (i = 0; i < sensor->nbr_fingers; i++) {
586 		/* Possible of having 4 fingers per f_statet register */
587 		finger_state = rmi_f11_parse_finger_state(f_state, i);
588 		if (finger_state == F11_RESERVED) {
589 			pr_err("Invalid finger state[%d]: 0x%02x", i,
590 				finger_state);
591 			continue;
592 		}
593 
594 		if (abs_bits)
595 			rmi_f11_abs_pos_process(f11, sensor, &sensor->objs[i],
596 							finger_state, i);
597 
598 		if (rel_bits)
599 			rmi_f11_rel_pos_report(f11, i);
600 	}
601 
602 	if (abs_bits) {
603 		/*
604 		 * the absolute part is made in 2 parts to allow the kernel
605 		 * tracking to take place.
606 		 */
607 		if (sensor->kernel_tracking)
608 			input_mt_assign_slots(sensor->input,
609 					      sensor->tracking_slots,
610 					      sensor->tracking_pos,
611 					      sensor->nbr_fingers,
612 					      sensor->dmax);
613 
614 		for (i = 0; i < sensor->nbr_fingers; i++) {
615 			finger_state = rmi_f11_parse_finger_state(f_state, i);
616 			if (finger_state == F11_RESERVED)
617 				/* no need to send twice the error */
618 				continue;
619 
620 			rmi_2d_sensor_abs_report(sensor, &sensor->objs[i], i);
621 		}
622 
623 		input_mt_sync_frame(sensor->input);
624 	}
625 }
626 
627 static int f11_2d_construct_data(struct f11_data *f11)
628 {
629 	struct rmi_2d_sensor *sensor = &f11->sensor;
630 	struct f11_2d_sensor_queries *query = &f11->sens_query;
631 	struct f11_2d_data *data = &f11->data;
632 	int i;
633 
634 	sensor->nbr_fingers = (query->nr_fingers == 5 ? 10 :
635 				query->nr_fingers + 1);
636 
637 	sensor->pkt_size = DIV_ROUND_UP(sensor->nbr_fingers, 4);
638 
639 	if (query->has_abs) {
640 		sensor->pkt_size += (sensor->nbr_fingers * 5);
641 		sensor->attn_size = sensor->pkt_size;
642 	}
643 
644 	if (query->has_rel)
645 		sensor->pkt_size +=  (sensor->nbr_fingers * 2);
646 
647 	/* Check if F11_2D_Query7 is non-zero */
648 	if (query->query7_nonzero)
649 		sensor->pkt_size += sizeof(u8);
650 
651 	/* Check if F11_2D_Query7 or F11_2D_Query8 is non-zero */
652 	if (query->query7_nonzero || query->query8_nonzero)
653 		sensor->pkt_size += sizeof(u8);
654 
655 	if (query->has_pinch || query->has_flick || query->has_rotate) {
656 		sensor->pkt_size += 3;
657 		if (!query->has_flick)
658 			sensor->pkt_size--;
659 		if (!query->has_rotate)
660 			sensor->pkt_size--;
661 	}
662 
663 	if (query->has_touch_shapes)
664 		sensor->pkt_size +=
665 			DIV_ROUND_UP(query->nr_touch_shapes + 1, 8);
666 
667 	sensor->data_pkt = devm_kzalloc(&sensor->fn->dev, sensor->pkt_size,
668 					GFP_KERNEL);
669 	if (!sensor->data_pkt)
670 		return -ENOMEM;
671 
672 	data->f_state = sensor->data_pkt;
673 	i = DIV_ROUND_UP(sensor->nbr_fingers, 4);
674 
675 	if (query->has_abs) {
676 		data->abs_pos = &sensor->data_pkt[i];
677 		i += (sensor->nbr_fingers * RMI_F11_ABS_BYTES);
678 	}
679 
680 	if (query->has_rel) {
681 		data->rel_pos = &sensor->data_pkt[i];
682 		i += (sensor->nbr_fingers * RMI_F11_REL_BYTES);
683 	}
684 
685 	if (query->query7_nonzero) {
686 		data->gest_1 = &sensor->data_pkt[i];
687 		i++;
688 	}
689 
690 	if (query->query7_nonzero || query->query8_nonzero) {
691 		data->gest_2 = &sensor->data_pkt[i];
692 		i++;
693 	}
694 
695 	if (query->has_pinch) {
696 		data->pinch = &sensor->data_pkt[i];
697 		i++;
698 	}
699 
700 	if (query->has_flick) {
701 		if (query->has_pinch) {
702 			data->flick = data->pinch;
703 			i += 2;
704 		} else {
705 			data->flick = &sensor->data_pkt[i];
706 			i += 3;
707 		}
708 	}
709 
710 	if (query->has_rotate) {
711 		if (query->has_flick) {
712 			data->rotate = data->flick + 1;
713 		} else {
714 			data->rotate = &sensor->data_pkt[i];
715 			i += 2;
716 		}
717 	}
718 
719 	if (query->has_touch_shapes)
720 		data->shapes = &sensor->data_pkt[i];
721 
722 	return 0;
723 }
724 
725 static int f11_read_control_regs(struct rmi_function *fn,
726 				struct f11_2d_ctrl *ctrl, u16 ctrl_base_addr) {
727 	struct rmi_device *rmi_dev = fn->rmi_dev;
728 	int error = 0;
729 
730 	ctrl->ctrl0_11_address = ctrl_base_addr;
731 	error = rmi_read_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11,
732 				RMI_F11_CTRL_REG_COUNT);
733 	if (error < 0) {
734 		dev_err(&fn->dev, "Failed to read ctrl0, code: %d.\n", error);
735 		return error;
736 	}
737 
738 	return 0;
739 }
740 
741 static int f11_write_control_regs(struct rmi_function *fn,
742 					struct f11_2d_sensor_queries *query,
743 					struct f11_2d_ctrl *ctrl,
744 					u16 ctrl_base_addr)
745 {
746 	struct rmi_device *rmi_dev = fn->rmi_dev;
747 	int error;
748 
749 	error = rmi_write_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11,
750 				RMI_F11_CTRL_REG_COUNT);
751 	if (error < 0)
752 		return error;
753 
754 	return 0;
755 }
756 
757 static int rmi_f11_get_query_parameters(struct rmi_device *rmi_dev,
758 			struct f11_data *f11,
759 			struct f11_2d_sensor_queries *sensor_query,
760 			u16 query_base_addr)
761 {
762 	int query_size;
763 	int rc;
764 	u8 query_buf[RMI_F11_QUERY_SIZE];
765 	bool has_query36 = false;
766 
767 	rc = rmi_read_block(rmi_dev, query_base_addr, query_buf,
768 				RMI_F11_QUERY_SIZE);
769 	if (rc < 0)
770 		return rc;
771 
772 	sensor_query->nr_fingers = query_buf[0] & RMI_F11_NR_FINGERS_MASK;
773 	sensor_query->has_rel = !!(query_buf[0] & RMI_F11_HAS_REL);
774 	sensor_query->has_abs = !!(query_buf[0] & RMI_F11_HAS_ABS);
775 	sensor_query->has_gestures = !!(query_buf[0] & RMI_F11_HAS_GESTURES);
776 	sensor_query->has_sensitivity_adjust =
777 		!!(query_buf[0] & RMI_F11_HAS_SENSITIVITY_ADJ);
778 	sensor_query->configurable = !!(query_buf[0] & RMI_F11_CONFIGURABLE);
779 
780 	sensor_query->nr_x_electrodes =
781 				query_buf[1] & RMI_F11_NR_ELECTRODES_MASK;
782 	sensor_query->nr_y_electrodes =
783 				query_buf[2] & RMI_F11_NR_ELECTRODES_MASK;
784 	sensor_query->max_electrodes =
785 				query_buf[3] & RMI_F11_NR_ELECTRODES_MASK;
786 
787 	query_size = RMI_F11_QUERY_SIZE;
788 
789 	if (sensor_query->has_abs) {
790 		rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf);
791 		if (rc < 0)
792 			return rc;
793 
794 		sensor_query->abs_data_size =
795 			query_buf[0] & RMI_F11_ABS_DATA_SIZE_MASK;
796 		sensor_query->has_anchored_finger =
797 			!!(query_buf[0] & RMI_F11_HAS_ANCHORED_FINGER);
798 		sensor_query->has_adj_hyst =
799 			!!(query_buf[0] & RMI_F11_HAS_ADJ_HYST);
800 		sensor_query->has_dribble =
801 			!!(query_buf[0] & RMI_F11_HAS_DRIBBLE);
802 		sensor_query->has_bending_correction =
803 			!!(query_buf[0] & RMI_F11_HAS_BENDING_CORRECTION);
804 		sensor_query->has_large_object_suppression =
805 			!!(query_buf[0] & RMI_F11_HAS_LARGE_OBJECT_SUPPRESSION);
806 		sensor_query->has_jitter_filter =
807 			!!(query_buf[0] & RMI_F11_HAS_JITTER_FILTER);
808 		query_size++;
809 	}
810 
811 	if (sensor_query->has_rel) {
812 		rc = rmi_read(rmi_dev, query_base_addr + query_size,
813 					&sensor_query->f11_2d_query6);
814 		if (rc < 0)
815 			return rc;
816 		query_size++;
817 	}
818 
819 	if (sensor_query->has_gestures) {
820 		rc = rmi_read_block(rmi_dev, query_base_addr + query_size,
821 					query_buf, RMI_F11_QUERY_GESTURE_SIZE);
822 		if (rc < 0)
823 			return rc;
824 
825 		sensor_query->has_single_tap =
826 			!!(query_buf[0] & RMI_F11_HAS_SINGLE_TAP);
827 		sensor_query->has_tap_n_hold =
828 			!!(query_buf[0] & RMI_F11_HAS_TAP_AND_HOLD);
829 		sensor_query->has_double_tap =
830 			!!(query_buf[0] & RMI_F11_HAS_DOUBLE_TAP);
831 		sensor_query->has_early_tap =
832 			!!(query_buf[0] & RMI_F11_HAS_EARLY_TAP);
833 		sensor_query->has_flick =
834 			!!(query_buf[0] & RMI_F11_HAS_FLICK);
835 		sensor_query->has_press =
836 			!!(query_buf[0] & RMI_F11_HAS_PRESS);
837 		sensor_query->has_pinch =
838 			!!(query_buf[0] & RMI_F11_HAS_PINCH);
839 		sensor_query->has_chiral =
840 			!!(query_buf[0] & RMI_F11_HAS_CHIRAL);
841 
842 		/* query 8 */
843 		sensor_query->has_palm_det =
844 			!!(query_buf[1] & RMI_F11_HAS_PALM_DET);
845 		sensor_query->has_rotate =
846 			!!(query_buf[1] & RMI_F11_HAS_ROTATE);
847 		sensor_query->has_touch_shapes =
848 			!!(query_buf[1] & RMI_F11_HAS_TOUCH_SHAPES);
849 		sensor_query->has_scroll_zones =
850 			!!(query_buf[1] & RMI_F11_HAS_SCROLL_ZONES);
851 		sensor_query->has_individual_scroll_zones =
852 			!!(query_buf[1] & RMI_F11_HAS_INDIVIDUAL_SCROLL_ZONES);
853 		sensor_query->has_mf_scroll =
854 			!!(query_buf[1] & RMI_F11_HAS_MF_SCROLL);
855 		sensor_query->has_mf_edge_motion =
856 			!!(query_buf[1] & RMI_F11_HAS_MF_EDGE_MOTION);
857 		sensor_query->has_mf_scroll_inertia =
858 			!!(query_buf[1] & RMI_F11_HAS_MF_SCROLL_INERTIA);
859 
860 		sensor_query->query7_nonzero = !!(query_buf[0]);
861 		sensor_query->query8_nonzero = !!(query_buf[1]);
862 
863 		query_size += 2;
864 	}
865 
866 	if (f11->has_query9) {
867 		rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf);
868 		if (rc < 0)
869 			return rc;
870 
871 		sensor_query->has_pen =
872 			!!(query_buf[0] & RMI_F11_HAS_PEN);
873 		sensor_query->has_proximity =
874 			!!(query_buf[0] & RMI_F11_HAS_PROXIMITY);
875 		sensor_query->has_palm_det_sensitivity =
876 			!!(query_buf[0] & RMI_F11_HAS_PALM_DET_SENSITIVITY);
877 		sensor_query->has_suppress_on_palm_detect =
878 			!!(query_buf[0] & RMI_F11_HAS_SUPPRESS_ON_PALM_DETECT);
879 		sensor_query->has_two_pen_thresholds =
880 			!!(query_buf[0] & RMI_F11_HAS_TWO_PEN_THRESHOLDS);
881 		sensor_query->has_contact_geometry =
882 			!!(query_buf[0] & RMI_F11_HAS_CONTACT_GEOMETRY);
883 		sensor_query->has_pen_hover_discrimination =
884 			!!(query_buf[0] & RMI_F11_HAS_PEN_HOVER_DISCRIMINATION);
885 		sensor_query->has_pen_filters =
886 			!!(query_buf[0] & RMI_F11_HAS_PEN_FILTERS);
887 
888 		query_size++;
889 	}
890 
891 	if (sensor_query->has_touch_shapes) {
892 		rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf);
893 		if (rc < 0)
894 			return rc;
895 
896 		sensor_query->nr_touch_shapes = query_buf[0] &
897 				RMI_F11_NR_TOUCH_SHAPES_MASK;
898 
899 		query_size++;
900 	}
901 
902 	if (f11->has_query11) {
903 		rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf);
904 		if (rc < 0)
905 			return rc;
906 
907 		sensor_query->has_z_tuning =
908 			!!(query_buf[0] & RMI_F11_HAS_Z_TUNING);
909 		sensor_query->has_algorithm_selection =
910 			!!(query_buf[0] & RMI_F11_HAS_ALGORITHM_SELECTION);
911 		sensor_query->has_w_tuning =
912 			!!(query_buf[0] & RMI_F11_HAS_W_TUNING);
913 		sensor_query->has_pitch_info =
914 			!!(query_buf[0] & RMI_F11_HAS_PITCH_INFO);
915 		sensor_query->has_finger_size =
916 			!!(query_buf[0] & RMI_F11_HAS_FINGER_SIZE);
917 		sensor_query->has_segmentation_aggressiveness =
918 			!!(query_buf[0] &
919 				RMI_F11_HAS_SEGMENTATION_AGGRESSIVENESS);
920 		sensor_query->has_XY_clip =
921 			!!(query_buf[0] & RMI_F11_HAS_XY_CLIP);
922 		sensor_query->has_drumming_filter =
923 			!!(query_buf[0] & RMI_F11_HAS_DRUMMING_FILTER);
924 
925 		query_size++;
926 	}
927 
928 	if (f11->has_query12) {
929 		rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf);
930 		if (rc < 0)
931 			return rc;
932 
933 		sensor_query->has_gapless_finger =
934 			!!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER);
935 		sensor_query->has_gapless_finger_tuning =
936 			!!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER_TUNING);
937 		sensor_query->has_8bit_w =
938 			!!(query_buf[0] & RMI_F11_HAS_8BIT_W);
939 		sensor_query->has_adjustable_mapping =
940 			!!(query_buf[0] & RMI_F11_HAS_ADJUSTABLE_MAPPING);
941 		sensor_query->has_info2 =
942 			!!(query_buf[0] & RMI_F11_HAS_INFO2);
943 		sensor_query->has_physical_props =
944 			!!(query_buf[0] & RMI_F11_HAS_PHYSICAL_PROPS);
945 		sensor_query->has_finger_limit =
946 			!!(query_buf[0] & RMI_F11_HAS_FINGER_LIMIT);
947 		sensor_query->has_linear_coeff_2 =
948 			!!(query_buf[0] & RMI_F11_HAS_LINEAR_COEFF);
949 
950 		query_size++;
951 	}
952 
953 	if (sensor_query->has_jitter_filter) {
954 		rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf);
955 		if (rc < 0)
956 			return rc;
957 
958 		sensor_query->jitter_window_size = query_buf[0] &
959 			RMI_F11_JITTER_WINDOW_MASK;
960 		sensor_query->jitter_filter_type = (query_buf[0] &
961 			RMI_F11_JITTER_FILTER_MASK) >>
962 			RMI_F11_JITTER_FILTER_SHIFT;
963 
964 		query_size++;
965 	}
966 
967 	if (sensor_query->has_info2) {
968 		rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf);
969 		if (rc < 0)
970 			return rc;
971 
972 		sensor_query->light_control =
973 			query_buf[0] & RMI_F11_LIGHT_CONTROL_MASK;
974 		sensor_query->is_clear =
975 			!!(query_buf[0] & RMI_F11_IS_CLEAR);
976 		sensor_query->clickpad_props =
977 			(query_buf[0] & RMI_F11_CLICKPAD_PROPS_MASK) >>
978 			RMI_F11_CLICKPAD_PROPS_SHIFT;
979 		sensor_query->mouse_buttons =
980 			(query_buf[0] & RMI_F11_MOUSE_BUTTONS_MASK) >>
981 			RMI_F11_MOUSE_BUTTONS_SHIFT;
982 		sensor_query->has_advanced_gestures =
983 			!!(query_buf[0] & RMI_F11_HAS_ADVANCED_GESTURES);
984 
985 		query_size++;
986 	}
987 
988 	if (sensor_query->has_physical_props) {
989 		rc = rmi_read_block(rmi_dev, query_base_addr
990 			+ query_size, query_buf, 4);
991 		if (rc < 0)
992 			return rc;
993 
994 		sensor_query->x_sensor_size_mm =
995 			(query_buf[0] | (query_buf[1] << 8)) / 10;
996 		sensor_query->y_sensor_size_mm =
997 			(query_buf[2] | (query_buf[3] << 8)) / 10;
998 
999 		/*
1000 		 * query 15 - 18 contain the size of the sensor
1001 		 * and query 19 - 26 contain bezel dimensions
1002 		 */
1003 		query_size += 12;
1004 	}
1005 
1006 	if (f11->has_query27)
1007 		++query_size;
1008 
1009 	if (f11->has_query28) {
1010 		rc = rmi_read(rmi_dev, query_base_addr + query_size,
1011 				query_buf);
1012 		if (rc < 0)
1013 			return rc;
1014 
1015 		has_query36 = !!(query_buf[0] & BIT(6));
1016 	}
1017 
1018 	if (has_query36) {
1019 		query_size += 2;
1020 		rc = rmi_read(rmi_dev, query_base_addr + query_size,
1021 				query_buf);
1022 		if (rc < 0)
1023 			return rc;
1024 
1025 		if (!!(query_buf[0] & BIT(5)))
1026 			f11->has_acm = true;
1027 	}
1028 
1029 	return query_size;
1030 }
1031 
1032 static int rmi_f11_initialize(struct rmi_function *fn)
1033 {
1034 	struct rmi_device *rmi_dev = fn->rmi_dev;
1035 	struct f11_data *f11;
1036 	struct f11_2d_ctrl *ctrl;
1037 	u8 query_offset;
1038 	u16 query_base_addr;
1039 	u16 control_base_addr;
1040 	u16 max_x_pos, max_y_pos;
1041 	int rc;
1042 	const struct rmi_device_platform_data *pdata =
1043 				rmi_get_platform_data(rmi_dev);
1044 	struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
1045 	struct rmi_2d_sensor *sensor;
1046 	u8 buf;
1047 	int mask_size;
1048 
1049 	rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Initializing F11 values.\n");
1050 
1051 	mask_size = BITS_TO_LONGS(drvdata->irq_count) * sizeof(unsigned long);
1052 
1053 	/*
1054 	** init instance data, fill in values and create any sysfs files
1055 	*/
1056 	f11 = devm_kzalloc(&fn->dev, sizeof(struct f11_data) + mask_size * 3,
1057 			GFP_KERNEL);
1058 	if (!f11)
1059 		return -ENOMEM;
1060 
1061 	if (fn->dev.of_node) {
1062 		rc = rmi_2d_sensor_of_probe(&fn->dev, &f11->sensor_pdata);
1063 		if (rc)
1064 			return rc;
1065 	} else if (pdata->sensor_pdata) {
1066 		f11->sensor_pdata = *pdata->sensor_pdata;
1067 	}
1068 
1069 	f11->rezero_wait_ms = f11->sensor_pdata.rezero_wait;
1070 
1071 	f11->abs_mask = (unsigned long *)((char *)f11
1072 			+ sizeof(struct f11_data));
1073 	f11->rel_mask = (unsigned long *)((char *)f11
1074 			+ sizeof(struct f11_data) + mask_size);
1075 	f11->result_bits = (unsigned long *)((char *)f11
1076 			+ sizeof(struct f11_data) + mask_size * 2);
1077 
1078 	set_bit(fn->irq_pos, f11->abs_mask);
1079 	set_bit(fn->irq_pos + 1, f11->rel_mask);
1080 
1081 	query_base_addr = fn->fd.query_base_addr;
1082 	control_base_addr = fn->fd.control_base_addr;
1083 
1084 	rc = rmi_read(rmi_dev, query_base_addr, &buf);
1085 	if (rc < 0)
1086 		return rc;
1087 
1088 	f11->has_query9 = !!(buf & RMI_F11_HAS_QUERY9);
1089 	f11->has_query11 = !!(buf & RMI_F11_HAS_QUERY11);
1090 	f11->has_query12 = !!(buf & RMI_F11_HAS_QUERY12);
1091 	f11->has_query27 = !!(buf & RMI_F11_HAS_QUERY27);
1092 	f11->has_query28 = !!(buf & RMI_F11_HAS_QUERY28);
1093 
1094 	query_offset = (query_base_addr + 1);
1095 	sensor = &f11->sensor;
1096 	sensor->fn = fn;
1097 
1098 	rc = rmi_f11_get_query_parameters(rmi_dev, f11,
1099 			&f11->sens_query, query_offset);
1100 	if (rc < 0)
1101 		return rc;
1102 	query_offset += rc;
1103 
1104 	rc = f11_read_control_regs(fn, &f11->dev_controls,
1105 			control_base_addr);
1106 	if (rc < 0) {
1107 		dev_err(&fn->dev,
1108 			"Failed to read F11 control params.\n");
1109 		return rc;
1110 	}
1111 
1112 	if (f11->sens_query.has_info2) {
1113 		if (f11->sens_query.is_clear)
1114 			f11->sensor.sensor_type = rmi_sensor_touchscreen;
1115 		else
1116 			f11->sensor.sensor_type = rmi_sensor_touchpad;
1117 	}
1118 
1119 	sensor->report_abs = f11->sens_query.has_abs;
1120 
1121 	sensor->axis_align =
1122 		f11->sensor_pdata.axis_align;
1123 
1124 	sensor->topbuttonpad = f11->sensor_pdata.topbuttonpad;
1125 	sensor->kernel_tracking = f11->sensor_pdata.kernel_tracking;
1126 	sensor->dmax = f11->sensor_pdata.dmax;
1127 
1128 	if (f11->sens_query.has_physical_props) {
1129 		sensor->x_mm = f11->sens_query.x_sensor_size_mm;
1130 		sensor->y_mm = f11->sens_query.y_sensor_size_mm;
1131 	} else {
1132 		sensor->x_mm = f11->sensor_pdata.x_mm;
1133 		sensor->y_mm = f11->sensor_pdata.y_mm;
1134 	}
1135 
1136 	if (sensor->sensor_type == rmi_sensor_default)
1137 		sensor->sensor_type =
1138 			f11->sensor_pdata.sensor_type;
1139 
1140 	sensor->report_abs = sensor->report_abs
1141 		&& !(f11->sensor_pdata.disable_report_mask
1142 			& RMI_F11_DISABLE_ABS_REPORT);
1143 
1144 	if (!sensor->report_abs)
1145 		/*
1146 		 * If device doesn't have abs or if it has been disables
1147 		 * fallback to reporting rel data.
1148 		 */
1149 		sensor->report_rel = f11->sens_query.has_rel;
1150 
1151 	rc = rmi_read_block(rmi_dev,
1152 		control_base_addr + F11_CTRL_SENSOR_MAX_X_POS_OFFSET,
1153 		(u8 *)&max_x_pos, sizeof(max_x_pos));
1154 	if (rc < 0)
1155 		return rc;
1156 
1157 	rc = rmi_read_block(rmi_dev,
1158 		control_base_addr + F11_CTRL_SENSOR_MAX_Y_POS_OFFSET,
1159 		(u8 *)&max_y_pos, sizeof(max_y_pos));
1160 	if (rc < 0)
1161 		return rc;
1162 
1163 	sensor->max_x = max_x_pos;
1164 	sensor->max_y = max_y_pos;
1165 
1166 	rc = f11_2d_construct_data(f11);
1167 	if (rc < 0)
1168 		return rc;
1169 
1170 	if (f11->has_acm)
1171 		f11->sensor.attn_size += f11->sensor.nbr_fingers * 2;
1172 
1173 	/* allocate the in-kernel tracking buffers */
1174 	sensor->tracking_pos = devm_kzalloc(&fn->dev,
1175 			sizeof(struct input_mt_pos) * sensor->nbr_fingers,
1176 			GFP_KERNEL);
1177 	sensor->tracking_slots = devm_kzalloc(&fn->dev,
1178 			sizeof(int) * sensor->nbr_fingers, GFP_KERNEL);
1179 	sensor->objs = devm_kzalloc(&fn->dev,
1180 			sizeof(struct rmi_2d_sensor_abs_object)
1181 			* sensor->nbr_fingers, GFP_KERNEL);
1182 	if (!sensor->tracking_pos || !sensor->tracking_slots || !sensor->objs)
1183 		return -ENOMEM;
1184 
1185 	ctrl = &f11->dev_controls;
1186 	if (sensor->axis_align.delta_x_threshold)
1187 		ctrl->ctrl0_11[RMI_F11_DELTA_X_THRESHOLD] =
1188 			sensor->axis_align.delta_x_threshold;
1189 
1190 	if (sensor->axis_align.delta_y_threshold)
1191 		ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] =
1192 			sensor->axis_align.delta_y_threshold;
1193 
1194 	if (f11->sens_query.has_dribble)
1195 		ctrl->ctrl0_11[0] = ctrl->ctrl0_11[0] & ~BIT(6);
1196 
1197 	if (f11->sens_query.has_palm_det)
1198 		ctrl->ctrl0_11[11] = ctrl->ctrl0_11[11] & ~BIT(0);
1199 
1200 	rc = f11_write_control_regs(fn, &f11->sens_query,
1201 			   &f11->dev_controls, fn->fd.query_base_addr);
1202 	if (rc)
1203 		dev_warn(&fn->dev, "Failed to write control registers\n");
1204 
1205 	mutex_init(&f11->dev_controls_mutex);
1206 
1207 	dev_set_drvdata(&fn->dev, f11);
1208 
1209 	return 0;
1210 }
1211 
1212 static int rmi_f11_config(struct rmi_function *fn)
1213 {
1214 	struct f11_data *f11 = dev_get_drvdata(&fn->dev);
1215 	struct rmi_driver *drv = fn->rmi_dev->driver;
1216 	struct rmi_2d_sensor *sensor = &f11->sensor;
1217 	int rc;
1218 
1219 	if (!sensor->report_abs)
1220 		drv->clear_irq_bits(fn->rmi_dev, f11->abs_mask);
1221 	else
1222 		drv->set_irq_bits(fn->rmi_dev, f11->abs_mask);
1223 
1224 	if (!sensor->report_rel)
1225 		drv->clear_irq_bits(fn->rmi_dev, f11->rel_mask);
1226 	else
1227 		drv->set_irq_bits(fn->rmi_dev, f11->rel_mask);
1228 
1229 	rc = f11_write_control_regs(fn, &f11->sens_query,
1230 			   &f11->dev_controls, fn->fd.query_base_addr);
1231 	if (rc < 0)
1232 		return rc;
1233 
1234 	return 0;
1235 }
1236 
1237 static int rmi_f11_attention(struct rmi_function *fn, unsigned long *irq_bits)
1238 {
1239 	struct rmi_device *rmi_dev = fn->rmi_dev;
1240 	struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
1241 	struct f11_data *f11 = dev_get_drvdata(&fn->dev);
1242 	u16 data_base_addr = fn->fd.data_base_addr;
1243 	int error;
1244 
1245 	if (rmi_dev->xport->attn_data) {
1246 		memcpy(f11->sensor.data_pkt, rmi_dev->xport->attn_data,
1247 			f11->sensor.attn_size);
1248 		rmi_dev->xport->attn_data += f11->sensor.attn_size;
1249 		rmi_dev->xport->attn_size -= f11->sensor.attn_size;
1250 	} else {
1251 		error = rmi_read_block(rmi_dev,
1252 				data_base_addr, f11->sensor.data_pkt,
1253 				f11->sensor.pkt_size);
1254 		if (error < 0)
1255 			return error;
1256 	}
1257 
1258 	rmi_f11_finger_handler(f11, &f11->sensor, irq_bits,
1259 				drvdata->num_of_irq_regs);
1260 
1261 	return 0;
1262 }
1263 
1264 static int rmi_f11_resume(struct rmi_function *fn)
1265 {
1266 	struct f11_data *f11 = dev_get_drvdata(&fn->dev);
1267 	int error;
1268 
1269 	rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Resuming...\n");
1270 	if (!f11->rezero_wait_ms)
1271 		return 0;
1272 
1273 	mdelay(f11->rezero_wait_ms);
1274 
1275 	error = rmi_write(fn->rmi_dev, fn->fd.command_base_addr,
1276 				RMI_F11_REZERO);
1277 	if (error) {
1278 		dev_err(&fn->dev,
1279 			"%s: failed to issue rezero command, error = %d.",
1280 			__func__, error);
1281 		return error;
1282 	}
1283 
1284 	return 0;
1285 }
1286 
1287 static int rmi_f11_probe(struct rmi_function *fn)
1288 {
1289 	int error;
1290 	struct f11_data *f11;
1291 
1292 	error = rmi_f11_initialize(fn);
1293 	if (error)
1294 		return error;
1295 
1296 	f11 = dev_get_drvdata(&fn->dev);
1297 	error = rmi_2d_sensor_configure_input(fn, &f11->sensor);
1298 	if (error)
1299 		return error;
1300 
1301 	return 0;
1302 }
1303 
1304 struct rmi_function_handler rmi_f11_handler = {
1305 	.driver = {
1306 		.name	= "rmi4_f11",
1307 	},
1308 	.func		= 0x11,
1309 	.probe		= rmi_f11_probe,
1310 	.config		= rmi_f11_config,
1311 	.attention	= rmi_f11_attention,
1312 	.resume		= rmi_f11_resume,
1313 };
1314