drivers/input/rmi4/rmi

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
rmi_f11_rel_pos_report
rmi_f11_abs_pos_process
rmi_f11_parse_finger_state
rmi_f11_finger_handler
f11_2d_construct_data
f11_read_control_regs
f11_write_control_regs
rmi_f11_get_query_parameters
rmi_f11_initialize
rmi_f11_config
rmi_f11_attention
rmi_f11_resume
rmi_f11_probe
   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 };
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/input/rmi4/rmi_f11.c

DEFINITIONS
