| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Andrew Duggan | 5203 | 97.75% | 5 | 41.67% |
| Nick Dyer | 79 | 1.48% | 1 | 8.33% |
| Benjamin Tissoires | 21 | 0.39% | 2 | 16.67% |
| Kees Cook | 15 | 0.28% | 1 | 8.33% |
| Thomas Gleixner | 2 | 0.04% | 1 | 8.33% |
| Dan Carpenter | 2 | 0.04% | 1 | 8.33% |
| Lucas Stach | 1 | 0.02% | 1 | 8.33% |
| Total | 5323 | 12 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2011-2015 Synaptics Incorporated * Copyright (c) 2011 Unixphere */ #include <linux/kernel.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/rmi.h> #include <linux/slab.h> #include <linux/of.h> #include "rmi_driver.h" #include "rmi_2d_sensor.h" #define F11_MAX_NUM_OF_FINGERS 10 #define F11_MAX_NUM_OF_TOUCH_SHAPES 16 #define FINGER_STATE_MASK 0x03 #define F11_CTRL_SENSOR_MAX_X_POS_OFFSET 6 #define F11_CTRL_SENSOR_MAX_Y_POS_OFFSET 8 #define DEFAULT_XY_MAX 9999 #define DEFAULT_MAX_ABS_MT_PRESSURE 255 #define DEFAULT_MAX_ABS_MT_TOUCH 15 #define DEFAULT_MAX_ABS_MT_ORIENTATION 1 #define DEFAULT_MIN_ABS_MT_TRACKING_ID 1 #define DEFAULT_MAX_ABS_MT_TRACKING_ID 10 /** A note about RMI4 F11 register structure. * * The properties for * a given sensor are described by its query registers. The number of query * registers and the layout of their contents are described by the F11 device * queries as well as the sensor query information. * * Similarly, each sensor has control registers that govern its behavior. The * size and layout of the control registers for a given sensor can be determined * by parsing that sensors query registers. * * And in a likewise fashion, each sensor has data registers where it reports * its touch data and other interesting stuff. The size and layout of a * sensors data registers must be determined by parsing its query registers. * * The short story is that we need to read and parse a lot of query * registers in order to determine the attributes of a sensor. Then * we need to use that data to compute the size of the control and data * registers for sensor. * * The end result is that we have a number of structs that aren't used to * directly generate the input events, but their size, location and contents * are critical to determining where the data we are interested in lives. * * At this time, the driver does not yet comprehend all possible F11 * configuration options, but it should be sufficient to cover 99% of RMI4 F11 * devices currently in the field. */ /* maximum ABS_MT_POSITION displacement (in mm) */ #define DMAX 10 /** * @rezero - writing this to the F11 command register will cause the sensor to * calibrate to the current capacitive state. */ #define RMI_F11_REZERO 0x01 #define RMI_F11_HAS_QUERY9 (1 << 3) #define RMI_F11_HAS_QUERY11 (1 << 4) #define RMI_F11_HAS_QUERY12 (1 << 5) #define RMI_F11_HAS_QUERY27 (1 << 6) #define RMI_F11_HAS_QUERY28 (1 << 7) /** Defs for Query 1 */ #define RMI_F11_NR_FINGERS_MASK 0x07 #define RMI_F11_HAS_REL (1 << 3) #define RMI_F11_HAS_ABS (1 << 4) #define RMI_F11_HAS_GESTURES (1 << 5) #define RMI_F11_HAS_SENSITIVITY_ADJ (1 << 6) #define RMI_F11_CONFIGURABLE (1 << 7) /** Defs for Query 2, 3, and 4. */ #define RMI_F11_NR_ELECTRODES_MASK 0x7F /** Defs for Query 5 */ #define RMI_F11_ABS_DATA_SIZE_MASK 0x03 #define RMI_F11_HAS_ANCHORED_FINGER (1 << 2) #define RMI_F11_HAS_ADJ_HYST (1 << 3) #define RMI_F11_HAS_DRIBBLE (1 << 4) #define RMI_F11_HAS_BENDING_CORRECTION (1 << 5) #define RMI_F11_HAS_LARGE_OBJECT_SUPPRESSION (1 << 6) #define RMI_F11_HAS_JITTER_FILTER (1 << 7) /** Defs for Query 7 */ #define RMI_F11_HAS_SINGLE_TAP (1 << 0) #define RMI_F11_HAS_TAP_AND_HOLD (1 << 1) #define RMI_F11_HAS_DOUBLE_TAP (1 << 2) #define RMI_F11_HAS_EARLY_TAP (1 << 3) #define RMI_F11_HAS_FLICK (1 << 4) #define RMI_F11_HAS_PRESS (1 << 5) #define RMI_F11_HAS_PINCH (1 << 6) #define RMI_F11_HAS_CHIRAL (1 << 7) /** Defs for Query 8 */ #define RMI_F11_HAS_PALM_DET (1 << 0) #define RMI_F11_HAS_ROTATE (1 << 1) #define RMI_F11_HAS_TOUCH_SHAPES (1 << 2) #define RMI_F11_HAS_SCROLL_ZONES (1 << 3) #define RMI_F11_HAS_INDIVIDUAL_SCROLL_ZONES (1 << 4) #define RMI_F11_HAS_MF_SCROLL (1 << 5) #define RMI_F11_HAS_MF_EDGE_MOTION (1 << 6) #define RMI_F11_HAS_MF_SCROLL_INERTIA (1 << 7) /** Defs for Query 9. */ #define RMI_F11_HAS_PEN (1 << 0) #define RMI_F11_HAS_PROXIMITY (1 << 1) #define RMI_F11_HAS_PALM_DET_SENSITIVITY (1 << 2) #define RMI_F11_HAS_SUPPRESS_ON_PALM_DETECT (1 << 3) #define RMI_F11_HAS_TWO_PEN_THRESHOLDS (1 << 4) #define RMI_F11_HAS_CONTACT_GEOMETRY (1 << 5) #define RMI_F11_HAS_PEN_HOVER_DISCRIMINATION (1 << 6) #define RMI_F11_HAS_PEN_FILTERS (1 << 7) /** Defs for Query 10. */ #define RMI_F11_NR_TOUCH_SHAPES_MASK 0x1F /** Defs for Query 11 */ #define RMI_F11_HAS_Z_TUNING (1 << 0) #define RMI_F11_HAS_ALGORITHM_SELECTION (1 << 1) #define RMI_F11_HAS_W_TUNING (1 << 2) #define RMI_F11_HAS_PITCH_INFO (1 << 3) #define RMI_F11_HAS_FINGER_SIZE (1 << 4) #define RMI_F11_HAS_SEGMENTATION_AGGRESSIVENESS (1 << 5) #define RMI_F11_HAS_XY_CLIP (1 << 6) #define RMI_F11_HAS_DRUMMING_FILTER (1 << 7) /** Defs for Query 12. */ #define RMI_F11_HAS_GAPLESS_FINGER (1 << 0) #define RMI_F11_HAS_GAPLESS_FINGER_TUNING (1 << 1) #define RMI_F11_HAS_8BIT_W (1 << 2) #define RMI_F11_HAS_ADJUSTABLE_MAPPING (1 << 3) #define RMI_F11_HAS_INFO2 (1 << 4) #define RMI_F11_HAS_PHYSICAL_PROPS (1 << 5) #define RMI_F11_HAS_FINGER_LIMIT (1 << 6) #define RMI_F11_HAS_LINEAR_COEFF (1 << 7) /** Defs for Query 13. */ #define RMI_F11_JITTER_WINDOW_MASK 0x1F #define RMI_F11_JITTER_FILTER_MASK 0x60 #define RMI_F11_JITTER_FILTER_SHIFT 5 /** Defs for Query 14. */ #define RMI_F11_LIGHT_CONTROL_MASK 0x03 #define RMI_F11_IS_CLEAR (1 << 2) #define RMI_F11_CLICKPAD_PROPS_MASK 0x18 #define RMI_F11_CLICKPAD_PROPS_SHIFT 3 #define RMI_F11_MOUSE_BUTTONS_MASK 0x60 #define RMI_F11_MOUSE_BUTTONS_SHIFT 5 #define RMI_F11_HAS_ADVANCED_GESTURES (1 << 7) #define RMI_F11_QUERY_SIZE 4 #define RMI_F11_QUERY_GESTURE_SIZE 2 #define F11_LIGHT_CTL_NONE 0x00 #define F11_LUXPAD 0x01 #define F11_DUAL_MODE 0x02 #define F11_NOT_CLICKPAD 0x00 #define F11_HINGED_CLICKPAD 0x01 #define F11_UNIFORM_CLICKPAD 0x02 /** * Query registers 1 through 4 are always present. * * @nr_fingers - describes the maximum number of fingers the 2-D sensor * supports. * @has_rel - the sensor supports relative motion reporting. * @has_abs - the sensor supports absolute poition reporting. * @has_gestures - the sensor supports gesture reporting. * @has_sensitivity_adjust - the sensor supports a global sensitivity * adjustment. * @configurable - the sensor supports various configuration options. * @num_of_x_electrodes - the maximum number of electrodes the 2-D sensor * supports on the X axis. * @num_of_y_electrodes - the maximum number of electrodes the 2-D sensor * supports on the Y axis. * @max_electrodes - the total number of X and Y electrodes that may be * configured. * * Query 5 is present if the has_abs bit is set. * * @abs_data_size - describes the format of data reported by the absolute * data source. Only one format (the kind used here) is supported at this * time. * @has_anchored_finger - then the sensor supports the high-precision second * finger tracking provided by the manual tracking and motion sensitivity * options. * @has_adjust_hyst - the difference between the finger release threshold and * the touch threshold. * @has_dribble - the sensor supports the generation of dribble interrupts, * which may be enabled or disabled with the dribble control bit. * @has_bending_correction - Bending related data registers 28 and 36, and * control register 52..57 are present. * @has_large_object_suppression - control register 58 and data register 28 * exist. * @has_jitter_filter - query 13 and control 73..76 exist. * * Gesture information queries 7 and 8 are present if has_gestures bit is set. * * @has_single_tap - a basic single-tap gesture is supported. * @has_tap_n_hold - tap-and-hold gesture is supported. * @has_double_tap - double-tap gesture is supported. * @has_early_tap - early tap is supported and reported as soon as the finger * lifts for any tap event that could be interpreted as either a single tap * or as the first tap of a double-tap or tap-and-hold gesture. * @has_flick - flick detection is supported. * @has_press - press gesture reporting is supported. * @has_pinch - pinch gesture detection is supported. * @has_palm_det - the 2-D sensor notifies the host whenever a large conductive * object such as a palm or a cheek touches the 2-D sensor. * @has_rotate - rotation gesture detection is supported. * @has_touch_shapes - TouchShapes are supported. A TouchShape is a fixed * rectangular area on the sensor that behaves like a capacitive button. * @has_scroll_zones - scrolling areas near the sensor edges are supported. * @has_individual_scroll_zones - if 1, then 4 scroll zones are supported; * if 0, then only two are supported. * @has_mf_scroll - the multifinger_scrolling bit will be set when * more than one finger is involved in a scrolling action. * * Convenience for checking bytes in the gesture info registers. This is done * often enough that we put it here to declutter the conditionals * * @query7_nonzero - true if none of the query 7 bits are set * @query8_nonzero - true if none of the query 8 bits are set * * Query 9 is present if the has_query9 is set. * * @has_pen - detection of a stylus is supported and registers F11_2D_Ctrl20 * and F11_2D_Ctrl21 exist. * @has_proximity - detection of fingers near the sensor is supported and * registers F11_2D_Ctrl22 through F11_2D_Ctrl26 exist. * @has_palm_det_sensitivity - the sensor supports the palm detect sensitivity * feature and register F11_2D_Ctrl27 exists. * @has_two_pen_thresholds - is has_pen is also set, then F11_2D_Ctrl35 exists. * @has_contact_geometry - the sensor supports the use of contact geometry to * map absolute X and Y target positions and registers F11_2D_Data18 * through F11_2D_Data27 exist. * * Touch shape info (query 10) is present if has_touch_shapes is set. * * @nr_touch_shapes - the total number of touch shapes supported. * * Query 11 is present if the has_query11 bit is set in query 0. * * @has_z_tuning - if set, the sensor supports Z tuning and registers * F11_2D_Ctrl29 through F11_2D_Ctrl33 exist. * @has_algorithm_selection - controls choice of noise suppression algorithm * @has_w_tuning - the sensor supports Wx and Wy scaling and registers * F11_2D_Ctrl36 through F11_2D_Ctrl39 exist. * @has_pitch_info - the X and Y pitches of the sensor electrodes can be * configured and registers F11_2D_Ctrl40 and F11_2D_Ctrl41 exist. * @has_finger_size - the default finger width settings for the * sensor can be configured and registers F11_2D_Ctrl42 through F11_2D_Ctrl44 * exist. * @has_segmentation_aggressiveness - the sensor’s ability to distinguish * multiple objects close together can be configured and register F11_2D_Ctrl45 * exists. * @has_XY_clip - the inactive outside borders of the sensor can be * configured and registers F11_2D_Ctrl46 through F11_2D_Ctrl49 exist. * @has_drumming_filter - the sensor can be configured to distinguish * between a fast flick and a quick drumming movement and registers * F11_2D_Ctrl50 and F11_2D_Ctrl51 exist. * * Query 12 is present if hasQuery12 bit is set. * * @has_gapless_finger - control registers relating to gapless finger are * present. * @has_gapless_finger_tuning - additional control and data registers relating * to gapless finger are present. * @has_8bit_w - larger W value reporting is supported. * @has_adjustable_mapping - TBD * @has_info2 - the general info query14 is present * @has_physical_props - additional queries describing the physical properties * of the sensor are present. * @has_finger_limit - indicates that F11 Ctrl 80 exists. * @has_linear_coeff - indicates that F11 Ctrl 81 exists. * * Query 13 is present if Query 5's has_jitter_filter bit is set. * @jitter_window_size - used by Design Studio 4. * @jitter_filter_type - used by Design Studio 4. * * Query 14 is present if query 12's has_general_info2 flag is set. * * @light_control - Indicates what light/led control features are present, if * any. * @is_clear - if set, this is a clear sensor (indicating direct pointing * application), otherwise it's opaque (indicating indirect pointing). * @clickpad_props - specifies if this is a clickpad, and if so what sort of * mechanism it uses * @mouse_buttons - specifies the number of mouse buttons present (if any). * @has_advanced_gestures - advanced driver gestures are supported. */ struct f11_2d_sensor_queries { /* query1 */ u8 nr_fingers; bool has_rel; bool has_abs; bool has_gestures; bool has_sensitivity_adjust; bool configurable; /* query2 */ u8 nr_x_electrodes; /* query3 */ u8 nr_y_electrodes; /* query4 */ u8 max_electrodes; /* query5 */ u8 abs_data_size; bool has_anchored_finger; bool has_adj_hyst; bool has_dribble; bool has_bending_correction; bool has_large_object_suppression; bool has_jitter_filter; u8 f11_2d_query6; /* query 7 */ bool has_single_tap; bool has_tap_n_hold; bool has_double_tap; bool has_early_tap; bool has_flick; bool has_press; bool has_pinch; bool has_chiral; bool query7_nonzero; /* query 8 */ bool has_palm_det; bool has_rotate; bool has_touch_shapes; bool has_scroll_zones; bool has_individual_scroll_zones; bool has_mf_scroll; bool has_mf_edge_motion; bool has_mf_scroll_inertia; bool query8_nonzero; /* Query 9 */ bool has_pen; bool has_proximity; bool has_palm_det_sensitivity; bool has_suppress_on_palm_detect; bool has_two_pen_thresholds; bool has_contact_geometry; bool has_pen_hover_discrimination; bool has_pen_filters; /* Query 10 */ u8 nr_touch_shapes; /* Query 11. */ bool has_z_tuning; bool has_algorithm_selection; bool has_w_tuning; bool has_pitch_info; bool has_finger_size; bool has_segmentation_aggressiveness; bool has_XY_clip; bool has_drumming_filter; /* Query 12 */ bool has_gapless_finger; bool has_gapless_finger_tuning; bool has_8bit_w; bool has_adjustable_mapping; bool has_info2; bool has_physical_props; bool has_finger_limit; bool has_linear_coeff_2; /* Query 13 */ u8 jitter_window_size; u8 jitter_filter_type; /* Query 14 */ u8 light_control; bool is_clear; u8 clickpad_props; u8 mouse_buttons; bool has_advanced_gestures; /* Query 15 - 18 */ u16 x_sensor_size_mm; u16 y_sensor_size_mm; }; /* Defs for Ctrl0. */ #define RMI_F11_REPORT_MODE_MASK 0x07 #define RMI_F11_ABS_POS_FILT (1 << 3) #define RMI_F11_REL_POS_FILT (1 << 4) #define RMI_F11_REL_BALLISTICS (1 << 5) #define RMI_F11_DRIBBLE (1 << 6) #define RMI_F11_REPORT_BEYOND_CLIP (1 << 7) /* Defs for Ctrl1. */ #define RMI_F11_PALM_DETECT_THRESH_MASK 0x0F #define RMI_F11_MOTION_SENSITIVITY_MASK 0x30 #define RMI_F11_MANUAL_TRACKING (1 << 6) #define RMI_F11_MANUAL_TRACKED_FINGER (1 << 7) #define RMI_F11_DELTA_X_THRESHOLD 2 #define RMI_F11_DELTA_Y_THRESHOLD 3 #define RMI_F11_CTRL_REG_COUNT 12 struct f11_2d_ctrl { u8 ctrl0_11[RMI_F11_CTRL_REG_COUNT]; u16 ctrl0_11_address; }; #define RMI_F11_ABS_BYTES 5 #define RMI_F11_REL_BYTES 2 /* Defs for Data 8 */ #define RMI_F11_SINGLE_TAP (1 << 0) #define RMI_F11_TAP_AND_HOLD (1 << 1) #define RMI_F11_DOUBLE_TAP (1 << 2) #define RMI_F11_EARLY_TAP (1 << 3) #define RMI_F11_FLICK (1 << 4) #define RMI_F11_PRESS (1 << 5) #define RMI_F11_PINCH (1 << 6) /* Defs for Data 9 */ #define RMI_F11_PALM_DETECT (1 << 0) #define RMI_F11_ROTATE (1 << 1) #define RMI_F11_SHAPE (1 << 2) #define RMI_F11_SCROLLZONE (1 << 3) #define RMI_F11_GESTURE_FINGER_COUNT_MASK 0x70 /** Handy pointers into our data buffer. * * @f_state - start of finger state registers. * @abs_pos - start of absolute position registers (if present). * @rel_pos - start of relative data registers (if present). * @gest_1 - gesture flags (if present). * @gest_2 - gesture flags & finger count (if present). * @pinch - pinch motion register (if present). * @flick - flick distance X & Y, flick time (if present). * @rotate - rotate motion and finger separation. * @multi_scroll - chiral deltas for X and Y (if present). * @scroll_zones - scroll deltas for 4 regions (if present). */ struct f11_2d_data { u8 *f_state; u8 *abs_pos; s8 *rel_pos; u8 *gest_1; u8 *gest_2; s8 *pinch; u8 *flick; u8 *rotate; u8 *shapes; s8 *multi_scroll; s8 *scroll_zones; }; /** Data pertaining to F11 in general. For per-sensor data, see struct * f11_2d_sensor. * * @dev_query - F11 device specific query registers. * @dev_controls - F11 device specific control registers. * @dev_controls_mutex - lock for the control registers. * @rezero_wait_ms - if nonzero, upon resume we will wait this many * milliseconds before rezeroing the sensor(s). This is useful in systems with * poor electrical behavior on resume, where the initial calibration of the * sensor(s) coming out of sleep state may be bogus. * @sensors - per sensor data structures. */ struct f11_data { bool has_query9; bool has_query11; bool has_query12; bool has_query27; bool has_query28; bool has_acm; struct f11_2d_ctrl dev_controls; struct mutex dev_controls_mutex; u16 rezero_wait_ms; struct rmi_2d_sensor sensor; struct f11_2d_sensor_queries sens_query; struct f11_2d_data data; struct rmi_2d_sensor_platform_data sensor_pdata; unsigned long *abs_mask; unsigned long *rel_mask; unsigned long *result_bits; }; enum f11_finger_state { F11_NO_FINGER = 0x00, F11_PRESENT = 0x01, F11_INACCURATE = 0x02, F11_RESERVED = 0x03 }; static void rmi_f11_rel_pos_report(struct f11_data *f11, u8 n_finger) { struct rmi_2d_sensor *sensor = &f11->sensor; struct f11_2d_data *data = &f11->data; s8 x, y; x = data->rel_pos[n_finger * RMI_F11_REL_BYTES]; y = data->rel_pos[n_finger * RMI_F11_REL_BYTES + 1]; rmi_2d_sensor_rel_report(sensor, x, y); } static void rmi_f11_abs_pos_process(struct f11_data *f11, struct rmi_2d_sensor *sensor, struct rmi_2d_sensor_abs_object *obj, enum f11_finger_state finger_state, u8 n_finger) { struct f11_2d_data *data = &f11->data; u8 *pos_data = &data->abs_pos[n_finger * RMI_F11_ABS_BYTES]; int tool_type = MT_TOOL_FINGER; switch (finger_state) { case F11_PRESENT: obj->type = RMI_2D_OBJECT_FINGER; break; default: obj->type = RMI_2D_OBJECT_NONE; } obj->mt_tool = tool_type; obj->x = (pos_data[0] << 4) | (pos_data[2] & 0x0F); obj->y = (pos_data[1] << 4) | (pos_data[2] >> 4); obj->z = pos_data[4]; obj->wx = pos_data[3] & 0x0f; obj->wy = pos_data[3] >> 4; rmi_2d_sensor_abs_process(sensor, obj, n_finger); } static inline u8 rmi_f11_parse_finger_state(const u8 *f_state, u8 n_finger) { return (f_state[n_finger / 4] >> (2 * (n_finger % 4))) & FINGER_STATE_MASK; } static void rmi_f11_finger_handler(struct f11_data *f11, struct rmi_2d_sensor *sensor, int size) { const u8 *f_state = f11->data.f_state; u8 finger_state; u8 i; int abs_fingers; int rel_fingers; int abs_size = sensor->nbr_fingers * RMI_F11_ABS_BYTES; if (sensor->report_abs) { if (abs_size > size) abs_fingers = size / RMI_F11_ABS_BYTES; else abs_fingers = sensor->nbr_fingers; for (i = 0; i < abs_fingers; i++) { /* Possible of having 4 fingers per f_state register */ finger_state = rmi_f11_parse_finger_state(f_state, i); if (finger_state == F11_RESERVED) { pr_err("Invalid finger state[%d]: 0x%02x", i, finger_state); continue; } rmi_f11_abs_pos_process(f11, sensor, &sensor->objs[i], finger_state, i); } /* * the absolute part is made in 2 parts to allow the kernel * tracking to take place. */ if (sensor->kernel_tracking) input_mt_assign_slots(sensor->input, sensor->tracking_slots, sensor->tracking_pos, sensor->nbr_fingers, sensor->dmax); for (i = 0; i < abs_fingers; i++) { finger_state = rmi_f11_parse_finger_state(f_state, i); if (finger_state == F11_RESERVED) /* no need to send twice the error */ continue; rmi_2d_sensor_abs_report(sensor, &sensor->objs[i], i); } input_mt_sync_frame(sensor->input); } else if (sensor->report_rel) { if ((abs_size + sensor->nbr_fingers * RMI_F11_REL_BYTES) > size) rel_fingers = (size - abs_size) / RMI_F11_REL_BYTES; else rel_fingers = sensor->nbr_fingers; for (i = 0; i < rel_fingers; i++) rmi_f11_rel_pos_report(f11, i); } } static int f11_2d_construct_data(struct f11_data *f11) { struct rmi_2d_sensor *sensor = &f11->sensor; struct f11_2d_sensor_queries *query = &f11->sens_query; struct f11_2d_data *data = &f11->data; int i; sensor->nbr_fingers = (query->nr_fingers == 5 ? 10 : query->nr_fingers + 1); sensor->pkt_size = DIV_ROUND_UP(sensor->nbr_fingers, 4); if (query->has_abs) { sensor->pkt_size += (sensor->nbr_fingers * 5); sensor->attn_size = sensor->pkt_size; } if (query->has_rel) sensor->pkt_size += (sensor->nbr_fingers * 2); /* Check if F11_2D_Query7 is non-zero */ if (query->query7_nonzero) sensor->pkt_size += sizeof(u8); /* Check if F11_2D_Query7 or F11_2D_Query8 is non-zero */ if (query->query7_nonzero || query->query8_nonzero) sensor->pkt_size += sizeof(u8); if (query->has_pinch || query->has_flick || query->has_rotate) { sensor->pkt_size += 3; if (!query->has_flick) sensor->pkt_size--; if (!query->has_rotate) sensor->pkt_size--; } if (query->has_touch_shapes) sensor->pkt_size += DIV_ROUND_UP(query->nr_touch_shapes + 1, 8); sensor->data_pkt = devm_kzalloc(&sensor->fn->dev, sensor->pkt_size, GFP_KERNEL); if (!sensor->data_pkt) return -ENOMEM; data->f_state = sensor->data_pkt; i = DIV_ROUND_UP(sensor->nbr_fingers, 4); if (query->has_abs) { data->abs_pos = &sensor->data_pkt[i]; i += (sensor->nbr_fingers * RMI_F11_ABS_BYTES); } if (query->has_rel) { data->rel_pos = &sensor->data_pkt[i]; i += (sensor->nbr_fingers * RMI_F11_REL_BYTES); } if (query->query7_nonzero) { data->gest_1 = &sensor->data_pkt[i]; i++; } if (query->query7_nonzero || query->query8_nonzero) { data->gest_2 = &sensor->data_pkt[i]; i++; } if (query->has_pinch) { data->pinch = &sensor->data_pkt[i]; i++; } if (query->has_flick) { if (query->has_pinch) { data->flick = data->pinch; i += 2; } else { data->flick = &sensor->data_pkt[i]; i += 3; } } if (query->has_rotate) { if (query->has_flick) { data->rotate = data->flick + 1; } else { data->rotate = &sensor->data_pkt[i]; i += 2; } } if (query->has_touch_shapes) data->shapes = &sensor->data_pkt[i]; return 0; } static int f11_read_control_regs(struct rmi_function *fn, struct f11_2d_ctrl *ctrl, u16 ctrl_base_addr) { struct rmi_device *rmi_dev = fn->rmi_dev; int error = 0; ctrl->ctrl0_11_address = ctrl_base_addr; error = rmi_read_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11, RMI_F11_CTRL_REG_COUNT); if (error < 0) { dev_err(&fn->dev, "Failed to read ctrl0, code: %d.\n", error); return error; } return 0; } static int f11_write_control_regs(struct rmi_function *fn, struct f11_2d_sensor_queries *query, struct f11_2d_ctrl *ctrl, u16 ctrl_base_addr) { struct rmi_device *rmi_dev = fn->rmi_dev; int error; error = rmi_write_block(rmi_dev, ctrl_base_addr, ctrl->ctrl0_11, RMI_F11_CTRL_REG_COUNT); if (error < 0) return error; return 0; } static int rmi_f11_get_query_parameters(struct rmi_device *rmi_dev, struct f11_data *f11, struct f11_2d_sensor_queries *sensor_query, u16 query_base_addr) { int query_size; int rc; u8 query_buf[RMI_F11_QUERY_SIZE]; bool has_query36 = false; rc = rmi_read_block(rmi_dev, query_base_addr, query_buf, RMI_F11_QUERY_SIZE); if (rc < 0) return rc; sensor_query->nr_fingers = query_buf[0] & RMI_F11_NR_FINGERS_MASK; sensor_query->has_rel = !!(query_buf[0] & RMI_F11_HAS_REL); sensor_query->has_abs = !!(query_buf[0] & RMI_F11_HAS_ABS); sensor_query->has_gestures = !!(query_buf[0] & RMI_F11_HAS_GESTURES); sensor_query->has_sensitivity_adjust = !!(query_buf[0] & RMI_F11_HAS_SENSITIVITY_ADJ); sensor_query->configurable = !!(query_buf[0] & RMI_F11_CONFIGURABLE); sensor_query->nr_x_electrodes = query_buf[1] & RMI_F11_NR_ELECTRODES_MASK; sensor_query->nr_y_electrodes = query_buf[2] & RMI_F11_NR_ELECTRODES_MASK; sensor_query->max_electrodes = query_buf[3] & RMI_F11_NR_ELECTRODES_MASK; query_size = RMI_F11_QUERY_SIZE; if (sensor_query->has_abs) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; sensor_query->abs_data_size = query_buf[0] & RMI_F11_ABS_DATA_SIZE_MASK; sensor_query->has_anchored_finger = !!(query_buf[0] & RMI_F11_HAS_ANCHORED_FINGER); sensor_query->has_adj_hyst = !!(query_buf[0] & RMI_F11_HAS_ADJ_HYST); sensor_query->has_dribble = !!(query_buf[0] & RMI_F11_HAS_DRIBBLE); sensor_query->has_bending_correction = !!(query_buf[0] & RMI_F11_HAS_BENDING_CORRECTION); sensor_query->has_large_object_suppression = !!(query_buf[0] & RMI_F11_HAS_LARGE_OBJECT_SUPPRESSION); sensor_query->has_jitter_filter = !!(query_buf[0] & RMI_F11_HAS_JITTER_FILTER); query_size++; } if (sensor_query->has_rel) { rc = rmi_read(rmi_dev, query_base_addr + query_size, &sensor_query->f11_2d_query6); if (rc < 0) return rc; query_size++; } if (sensor_query->has_gestures) { rc = rmi_read_block(rmi_dev, query_base_addr + query_size, query_buf, RMI_F11_QUERY_GESTURE_SIZE); if (rc < 0) return rc; sensor_query->has_single_tap = !!(query_buf[0] & RMI_F11_HAS_SINGLE_TAP); sensor_query->has_tap_n_hold = !!(query_buf[0] & RMI_F11_HAS_TAP_AND_HOLD); sensor_query->has_double_tap = !!(query_buf[0] & RMI_F11_HAS_DOUBLE_TAP); sensor_query->has_early_tap = !!(query_buf[0] & RMI_F11_HAS_EARLY_TAP); sensor_query->has_flick = !!(query_buf[0] & RMI_F11_HAS_FLICK); sensor_query->has_press = !!(query_buf[0] & RMI_F11_HAS_PRESS); sensor_query->has_pinch = !!(query_buf[0] & RMI_F11_HAS_PINCH); sensor_query->has_chiral = !!(query_buf[0] & RMI_F11_HAS_CHIRAL); /* query 8 */ sensor_query->has_palm_det = !!(query_buf[1] & RMI_F11_HAS_PALM_DET); sensor_query->has_rotate = !!(query_buf[1] & RMI_F11_HAS_ROTATE); sensor_query->has_touch_shapes = !!(query_buf[1] & RMI_F11_HAS_TOUCH_SHAPES); sensor_query->has_scroll_zones = !!(query_buf[1] & RMI_F11_HAS_SCROLL_ZONES); sensor_query->has_individual_scroll_zones = !!(query_buf[1] & RMI_F11_HAS_INDIVIDUAL_SCROLL_ZONES); sensor_query->has_mf_scroll = !!(query_buf[1] & RMI_F11_HAS_MF_SCROLL); sensor_query->has_mf_edge_motion = !!(query_buf[1] & RMI_F11_HAS_MF_EDGE_MOTION); sensor_query->has_mf_scroll_inertia = !!(query_buf[1] & RMI_F11_HAS_MF_SCROLL_INERTIA); sensor_query->query7_nonzero = !!(query_buf[0]); sensor_query->query8_nonzero = !!(query_buf[1]); query_size += 2; } if (f11->has_query9) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; sensor_query->has_pen = !!(query_buf[0] & RMI_F11_HAS_PEN); sensor_query->has_proximity = !!(query_buf[0] & RMI_F11_HAS_PROXIMITY); sensor_query->has_palm_det_sensitivity = !!(query_buf[0] & RMI_F11_HAS_PALM_DET_SENSITIVITY); sensor_query->has_suppress_on_palm_detect = !!(query_buf[0] & RMI_F11_HAS_SUPPRESS_ON_PALM_DETECT); sensor_query->has_two_pen_thresholds = !!(query_buf[0] & RMI_F11_HAS_TWO_PEN_THRESHOLDS); sensor_query->has_contact_geometry = !!(query_buf[0] & RMI_F11_HAS_CONTACT_GEOMETRY); sensor_query->has_pen_hover_discrimination = !!(query_buf[0] & RMI_F11_HAS_PEN_HOVER_DISCRIMINATION); sensor_query->has_pen_filters = !!(query_buf[0] & RMI_F11_HAS_PEN_FILTERS); query_size++; } if (sensor_query->has_touch_shapes) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; sensor_query->nr_touch_shapes = query_buf[0] & RMI_F11_NR_TOUCH_SHAPES_MASK; query_size++; } if (f11->has_query11) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; sensor_query->has_z_tuning = !!(query_buf[0] & RMI_F11_HAS_Z_TUNING); sensor_query->has_algorithm_selection = !!(query_buf[0] & RMI_F11_HAS_ALGORITHM_SELECTION); sensor_query->has_w_tuning = !!(query_buf[0] & RMI_F11_HAS_W_TUNING); sensor_query->has_pitch_info = !!(query_buf[0] & RMI_F11_HAS_PITCH_INFO); sensor_query->has_finger_size = !!(query_buf[0] & RMI_F11_HAS_FINGER_SIZE); sensor_query->has_segmentation_aggressiveness = !!(query_buf[0] & RMI_F11_HAS_SEGMENTATION_AGGRESSIVENESS); sensor_query->has_XY_clip = !!(query_buf[0] & RMI_F11_HAS_XY_CLIP); sensor_query->has_drumming_filter = !!(query_buf[0] & RMI_F11_HAS_DRUMMING_FILTER); query_size++; } if (f11->has_query12) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; sensor_query->has_gapless_finger = !!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER); sensor_query->has_gapless_finger_tuning = !!(query_buf[0] & RMI_F11_HAS_GAPLESS_FINGER_TUNING); sensor_query->has_8bit_w = !!(query_buf[0] & RMI_F11_HAS_8BIT_W); sensor_query->has_adjustable_mapping = !!(query_buf[0] & RMI_F11_HAS_ADJUSTABLE_MAPPING); sensor_query->has_info2 = !!(query_buf[0] & RMI_F11_HAS_INFO2); sensor_query->has_physical_props = !!(query_buf[0] & RMI_F11_HAS_PHYSICAL_PROPS); sensor_query->has_finger_limit = !!(query_buf[0] & RMI_F11_HAS_FINGER_LIMIT); sensor_query->has_linear_coeff_2 = !!(query_buf[0] & RMI_F11_HAS_LINEAR_COEFF); query_size++; } if (sensor_query->has_jitter_filter) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; sensor_query->jitter_window_size = query_buf[0] & RMI_F11_JITTER_WINDOW_MASK; sensor_query->jitter_filter_type = (query_buf[0] & RMI_F11_JITTER_FILTER_MASK) >> RMI_F11_JITTER_FILTER_SHIFT; query_size++; } if (sensor_query->has_info2) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; sensor_query->light_control = query_buf[0] & RMI_F11_LIGHT_CONTROL_MASK; sensor_query->is_clear = !!(query_buf[0] & RMI_F11_IS_CLEAR); sensor_query->clickpad_props = (query_buf[0] & RMI_F11_CLICKPAD_PROPS_MASK) >> RMI_F11_CLICKPAD_PROPS_SHIFT; sensor_query->mouse_buttons = (query_buf[0] & RMI_F11_MOUSE_BUTTONS_MASK) >> RMI_F11_MOUSE_BUTTONS_SHIFT; sensor_query->has_advanced_gestures = !!(query_buf[0] & RMI_F11_HAS_ADVANCED_GESTURES); query_size++; } if (sensor_query->has_physical_props) { rc = rmi_read_block(rmi_dev, query_base_addr + query_size, query_buf, 4); if (rc < 0) return rc; sensor_query->x_sensor_size_mm = (query_buf[0] | (query_buf[1] << 8)) / 10; sensor_query->y_sensor_size_mm = (query_buf[2] | (query_buf[3] << 8)) / 10; /* * query 15 - 18 contain the size of the sensor * and query 19 - 26 contain bezel dimensions */ query_size += 12; } if (f11->has_query27) ++query_size; if (f11->has_query28) { rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; has_query36 = !!(query_buf[0] & BIT(6)); } if (has_query36) { query_size += 2; rc = rmi_read(rmi_dev, query_base_addr + query_size, query_buf); if (rc < 0) return rc; if (!!(query_buf[0] & BIT(5))) f11->has_acm = true; } return query_size; } static int rmi_f11_initialize(struct rmi_function *fn) { struct rmi_device *rmi_dev = fn->rmi_dev; struct f11_data *f11; struct f11_2d_ctrl *ctrl; u8 query_offset; u16 query_base_addr; u16 control_base_addr; u16 max_x_pos, max_y_pos; int rc; const struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev); struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); struct rmi_2d_sensor *sensor; u8 buf; int mask_size; rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Initializing F11 values.\n"); mask_size = BITS_TO_LONGS(drvdata->irq_count) * sizeof(unsigned long); /* ** init instance data, fill in values and create any sysfs files */ f11 = devm_kzalloc(&fn->dev, sizeof(struct f11_data) + mask_size * 3, GFP_KERNEL); if (!f11) return -ENOMEM; if (fn->dev.of_node) { rc = rmi_2d_sensor_of_probe(&fn->dev, &f11->sensor_pdata); if (rc) return rc; } else { f11->sensor_pdata = pdata->sensor_pdata; } f11->rezero_wait_ms = f11->sensor_pdata.rezero_wait; f11->abs_mask = (unsigned long *)((char *)f11 + sizeof(struct f11_data)); f11->rel_mask = (unsigned long *)((char *)f11 + sizeof(struct f11_data) + mask_size); f11->result_bits = (unsigned long *)((char *)f11 + sizeof(struct f11_data) + mask_size * 2); set_bit(fn->irq_pos, f11->abs_mask); set_bit(fn->irq_pos + 1, f11->rel_mask); query_base_addr = fn->fd.query_base_addr; control_base_addr = fn->fd.control_base_addr; rc = rmi_read(rmi_dev, query_base_addr, &buf); if (rc < 0) return rc; f11->has_query9 = !!(buf & RMI_F11_HAS_QUERY9); f11->has_query11 = !!(buf & RMI_F11_HAS_QUERY11); f11->has_query12 = !!(buf & RMI_F11_HAS_QUERY12); f11->has_query27 = !!(buf & RMI_F11_HAS_QUERY27); f11->has_query28 = !!(buf & RMI_F11_HAS_QUERY28); query_offset = (query_base_addr + 1); sensor = &f11->sensor; sensor->fn = fn; rc = rmi_f11_get_query_parameters(rmi_dev, f11, &f11->sens_query, query_offset); if (rc < 0) return rc; query_offset += rc; rc = f11_read_control_regs(fn, &f11->dev_controls, control_base_addr); if (rc < 0) { dev_err(&fn->dev, "Failed to read F11 control params.\n"); return rc; } if (f11->sens_query.has_info2) { if (f11->sens_query.is_clear) f11->sensor.sensor_type = rmi_sensor_touchscreen; else f11->sensor.sensor_type = rmi_sensor_touchpad; } sensor->report_abs = f11->sens_query.has_abs; sensor->axis_align = f11->sensor_pdata.axis_align; sensor->topbuttonpad = f11->sensor_pdata.topbuttonpad; sensor->kernel_tracking = f11->sensor_pdata.kernel_tracking; sensor->dmax = f11->sensor_pdata.dmax; sensor->dribble = f11->sensor_pdata.dribble; sensor->palm_detect = f11->sensor_pdata.palm_detect; if (f11->sens_query.has_physical_props) { sensor->x_mm = f11->sens_query.x_sensor_size_mm; sensor->y_mm = f11->sens_query.y_sensor_size_mm; } else { sensor->x_mm = f11->sensor_pdata.x_mm; sensor->y_mm = f11->sensor_pdata.y_mm; } if (sensor->sensor_type == rmi_sensor_default) sensor->sensor_type = f11->sensor_pdata.sensor_type; sensor->report_abs = sensor->report_abs && !(f11->sensor_pdata.disable_report_mask & RMI_F11_DISABLE_ABS_REPORT); if (!sensor->report_abs) /* * If device doesn't have abs or if it has been disables * fallback to reporting rel data. */ sensor->report_rel = f11->sens_query.has_rel; rc = rmi_read_block(rmi_dev, control_base_addr + F11_CTRL_SENSOR_MAX_X_POS_OFFSET, (u8 *)&max_x_pos, sizeof(max_x_pos)); if (rc < 0) return rc; rc = rmi_read_block(rmi_dev, control_base_addr + F11_CTRL_SENSOR_MAX_Y_POS_OFFSET, (u8 *)&max_y_pos, sizeof(max_y_pos)); if (rc < 0) return rc; sensor->max_x = max_x_pos; sensor->max_y = max_y_pos; rc = f11_2d_construct_data(f11); if (rc < 0) return rc; if (f11->has_acm) f11->sensor.attn_size += f11->sensor.nbr_fingers * 2; /* allocate the in-kernel tracking buffers */ sensor->tracking_pos = devm_kcalloc(&fn->dev, sensor->nbr_fingers, sizeof(struct input_mt_pos), GFP_KERNEL); sensor->tracking_slots = devm_kcalloc(&fn->dev, sensor->nbr_fingers, sizeof(int), GFP_KERNEL); sensor->objs = devm_kcalloc(&fn->dev, sensor->nbr_fingers, sizeof(struct rmi_2d_sensor_abs_object), GFP_KERNEL); if (!sensor->tracking_pos || !sensor->tracking_slots || !sensor->objs) return -ENOMEM; ctrl = &f11->dev_controls; if (sensor->axis_align.delta_x_threshold) ctrl->ctrl0_11[RMI_F11_DELTA_X_THRESHOLD] = sensor->axis_align.delta_x_threshold; if (sensor->axis_align.delta_y_threshold) ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] = sensor->axis_align.delta_y_threshold; if (f11->sens_query.has_dribble) { switch (sensor->dribble) { case RMI_REG_STATE_OFF: ctrl->ctrl0_11[0] &= ~BIT(6); break; case RMI_REG_STATE_ON: ctrl->ctrl0_11[0] |= BIT(6); break; case RMI_REG_STATE_DEFAULT: default: break; } } if (f11->sens_query.has_palm_det) { switch (sensor->palm_detect) { case RMI_REG_STATE_OFF: ctrl->ctrl0_11[11] &= ~BIT(0); break; case RMI_REG_STATE_ON: ctrl->ctrl0_11[11] |= BIT(0); break; case RMI_REG_STATE_DEFAULT: default: break; } } rc = f11_write_control_regs(fn, &f11->sens_query, &f11->dev_controls, fn->fd.control_base_addr); if (rc) dev_warn(&fn->dev, "Failed to write control registers\n"); mutex_init(&f11->dev_controls_mutex); dev_set_drvdata(&fn->dev, f11); return 0; } static int rmi_f11_config(struct rmi_function *fn) { struct f11_data *f11 = dev_get_drvdata(&fn->dev); struct rmi_driver *drv = fn->rmi_dev->driver; struct rmi_2d_sensor *sensor = &f11->sensor; int rc; if (!sensor->report_abs) drv->clear_irq_bits(fn->rmi_dev, f11->abs_mask); else drv->set_irq_bits(fn->rmi_dev, f11->abs_mask); if (!sensor->report_rel) drv->clear_irq_bits(fn->rmi_dev, f11->rel_mask); else drv->set_irq_bits(fn->rmi_dev, f11->rel_mask); rc = f11_write_control_regs(fn, &f11->sens_query, &f11->dev_controls, fn->fd.query_base_addr); if (rc < 0) return rc; return 0; } static irqreturn_t rmi_f11_attention(int irq, void *ctx) { struct rmi_function *fn = ctx; struct rmi_device *rmi_dev = fn->rmi_dev; struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev); struct f11_data *f11 = dev_get_drvdata(&fn->dev); u16 data_base_addr = fn->fd.data_base_addr; int error; int valid_bytes = f11->sensor.pkt_size; if (drvdata->attn_data.data) { /* * The valid data in the attention report is less then * expected. Only process the complete fingers. */ if (f11->sensor.attn_size > drvdata->attn_data.size) valid_bytes = drvdata->attn_data.size; else valid_bytes = f11->sensor.attn_size; memcpy(f11->sensor.data_pkt, drvdata->attn_data.data, valid_bytes); drvdata->attn_data.data += f11->sensor.attn_size; drvdata->attn_data.size -= f11->sensor.attn_size; } else { error = rmi_read_block(rmi_dev, data_base_addr, f11->sensor.data_pkt, f11->sensor.pkt_size); if (error < 0) return IRQ_RETVAL(error); } rmi_f11_finger_handler(f11, &f11->sensor, valid_bytes); return IRQ_HANDLED; } static int rmi_f11_resume(struct rmi_function *fn) { struct f11_data *f11 = dev_get_drvdata(&fn->dev); int error; rmi_dbg(RMI_DEBUG_FN, &fn->dev, "Resuming...\n"); if (!f11->rezero_wait_ms) return 0; mdelay(f11->rezero_wait_ms); error = rmi_write(fn->rmi_dev, fn->fd.command_base_addr, RMI_F11_REZERO); if (error) { dev_err(&fn->dev, "%s: failed to issue rezero command, error = %d.", __func__, error); return error; } return 0; } static int rmi_f11_probe(struct rmi_function *fn) { int error; struct f11_data *f11; error = rmi_f11_initialize(fn); if (error) return error; f11 = dev_get_drvdata(&fn->dev); error = rmi_2d_sensor_configure_input(fn, &f11->sensor); if (error) return error; return 0; } struct rmi_function_handler rmi_f11_handler = { .driver = { .name = "rmi4_f11", }, .func = 0x11, .probe = rmi_f11_probe, .config = rmi_f11_config, .attention = rmi_f11_attention, .resume = rmi_f11_resume, };
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