Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754222Ab2KQEAq (ORCPT ); Fri, 16 Nov 2012 23:00:46 -0500 Received: from [12.239.217.82] ([12.239.217.82]:7312 "EHLO brontomerus.synaptics.com" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1753981Ab2KQEAl (ORCPT ); Fri, 16 Nov 2012 23:00:41 -0500 From: Christopher Heiny To: Dmitry Torokhov Cc: Jean Delvare , Linux Kernel , Linux Input , Christopher Heiny , Allie Xiong , Vivian Ly , Daniel Rosenberg , Alexandra Chin , Joerie de Gram , Wolfram Sang , Mathieu Poirier , Linus Walleij , Naveen Kumar Gaddipati Subject: =?UTF-8?q?=5BRFC=20PATCH=2006/06=5D=20input/rmi4=3A=20F11=20-=202D=20touch=20interface?= Date: Fri, 16 Nov 2012 19:58:54 -0800 Message-Id: <1353124734-16803-7-git-send-email-cheiny@synaptics.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1353124734-16803-1-git-send-email-cheiny@synaptics.com> References: <1353124734-16803-1-git-send-email-cheiny@synaptics.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 83534 Lines: 2843 rmi_f11.c is a driver for 2D touch sensors using the RMI4 protocol. It supports both touchscreen and touchpad input, in both absolute and relative formats. Support for Type-B multitouch is the default, Type-A support is included for certain legacy sensors. Signed-off-by: Christopher Heiny To: Henrik Rydberg Cc: Dmitry Torokhov Cc: Linus Walleij Cc: Naveen Kumar Gaddipati Cc: Joeri de Gram --- drivers/input/rmi4/rmi_f11.c | 2813 ++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 2813 insertions(+), 0 deletions(-) diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c new file mode 100644 index 0000000..b9a84bc --- /dev/null +++ b/drivers/input/rmi4/rmi_f11.c @@ -0,0 +1,2813 @@ +/* + * Copyright (c) 2011,2012 Synaptics Incorporated + * Copyright (c) 2011 Unixphere + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define FUNCTION_DATA f11_data +#define FNUM 11 + +#include +#include +#include +#include +#include +#include +#include +#include +#include "rmi_driver.h" + +#ifdef CONFIG_RMI4_DEBUG +#include +#include +#include +#endif + +#define F11_MAX_NUM_OF_SENSORS 8 +#define F11_MAX_NUM_OF_FINGERS 10 +#define F11_MAX_NUM_OF_TOUCH_SHAPES 16 + +#define F11_REL_POS_MIN -128 +#define F11_REL_POS_MAX 127 + +#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 +#define NAME_BUFFER_SIZE 256 +#define FUNCTION_NUMBER 0x11 + +/** A note about RMI4 F11 register structure. + * + * There may be one or more individual 2D touch surfaces associated with an + * instance for F11. For example, a handheld device might have a touchscreen + * display on the front, and a touchpad on the back. F11 represents these touch + * surfaces as individual sensors, up to 7 on a given RMI4 device. + * + * 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 per-sensor query information. The query registers + * for sensor[n+1] immediately follow those for sensor[n], so the start address + * of the sensor[n+1] queries can only be computed if you know the size of the + * sensor[n] queries. Because each of the sensors may have different + * properties, the size of the query registers for each sensor must be + * calculated on a sensor by sensor basis. + * + * 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. The control registers for + * sensor[n+1] immediately follow those for sensor[n], so you can only know + * the start address for the sensor[n+1] controls if you know the size (and + * location) of the sensor[n] controls. + * + * 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 data registers for sensor[n+1] immediately follow those for sensor[n], + * so you can only know the start address for the sensor[n+1] controls if you + * know the size (and location) of the sensor[n] controls. + * + * 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[0]. Then + * we need to use that data to compute the size of the control and data + * registers for sensor[0]. Once we have that figured out, we can then do + * the same thing for each subsequent 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. + */ + +/** + * @rezero - writing 1 to this will cause the sensor to calibrate to the + * current capacitive state. + */ +struct f11_2d_commands { + bool rezero:1; + u8 reserved:7; +} __attribute__((__packed__)); + +/** This query is always present, and is on a per device basis. All other + * queries are on a per-sensor basis. + * + * @nbr_of_sensors - the number of 2D sensors on the touch device. + * @has_query9 - indicates the F11_2D_Query9 register exists. + * @has_query11 - indicates the F11_2D_Query11 register exists. + * @has_query12 - indicates the F11_2D_Query12 register exists. + */ +struct f11_2d_device_query { + u8 nbr_of_sensors:3; + bool has_query9:1; + bool has_query11:1; + bool has_query12:1; + bool has_query27:1; + bool has_query28:1; +} __attribute__((__packed__)); + +/** Query registers 1 through 4 are always present. + * @number_of_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. + */ +struct f11_2d_sensor_info { + /* query1 */ + u8 number_of_fingers:3; + bool has_rel:1; + bool has_abs:1; + bool has_gestures:1; + bool has_sensitivity_adjust:1; + bool configurable:1; + /* query2 */ + u8 num_of_x_electrodes:7; + u8 reserved_1:1; + /* query3 */ + u8 num_of_y_electrodes:7; + u8 reserved_2:1; + /* query4 */ + u8 max_electrodes:7; + u8 reserved_3:1; +} __attribute__((__packed__)); + +/** Query 5 - this 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. + */ +struct f11_2d_abs_info { + u8 abs_data_size:2; + bool has_anchored_finger:1; + bool has_adj_hyst:1; + bool has_dribble:1; + bool has_bending_correction:1; + bool has_large_object_suppression:1; + bool has_jitter_filter:1; +} __attribute__((__packed__)); + +/** 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_multi_finger_scroll - the multifinger_scrolling bit will be set when + * more than one finger is involved in a scrolling action. + */ +struct f11_2d_gesture_info { + bool has_single_tap:1; + bool has_tap_n_hold:1; + bool has_double_tap:1; + bool has_early_tap:1; + bool has_flick:1; + bool has_press:1; + bool has_pinch:1; + bool has_chiral:1; + + bool has_palm_det:1; + bool has_rotate:1; + bool has_touch_shapes:1; + bool has_scroll_zones:1; + bool has_individual_scroll_zones:1; + bool has_multi_finger_scroll:1; + bool has_mf_edge_motion:1; + bool has_mf_scroll_inertia:1; +} __attribute__((__packed__)); + +/** Utility for checking bytes in the gesture info registers. This is done + * often enough that we put it here to declutter the conditionals. + */ +static bool has_gesture_bits(const struct f11_2d_gesture_info *info, + const u8 byte) { + return ((u8 *) info)[byte] != 0; +} + +/** + * @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. + */ +struct f11_2d_query9 { + bool has_pen:1; + bool has_proximity:1; + bool has_palm_det_sensitivity:1; + bool has_suppress_on_palm_detect:1; + bool has_two_pen_thresholds:1; + bool has_contact_geometry:1; + bool has_pen_hover_discrimination:1; + bool has_pen_filters:1; +} __attribute__((__packed__)); + +/** Touch shape info (query 10) is present if has_touch_shapes is set. + * + * @nbr_touch_shapes - the total number of touch shapes supported. + */ +struct f11_2d_ts_info { + u8 nbr_touch_shapes:5; + u8 reserved:3; +} __attribute__((__packed__)); + +/** 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. + */ +struct f11_2d_query11 { + bool has_z_tuning:1; + bool has_algorithm_selection:1; + bool has_w_tuning:1; + bool has_pitch_info:1; + bool has_finger_size:1; + bool has_segmentation_aggressiveness:1; + bool has_XY_clip:1; + bool has_drumming_filter:1; +} __attribute__((__packed__)); + +/** + * @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. + */ +struct f11_2d_query12 { + bool has_gapless_finger:1; + bool has_gapless_finger_tuning:1; + bool has_8bit_w:1; + bool has_adjustable_mapping:1; + bool has_info2:1; + bool has_physical_props:1; + bool has_finger_limit:1; + bool has_linear_coeff_2:1; +} __attribute__((__packed__)); + +/** This register 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. + */ +struct f11_2d_query13 { + u8 jtter_window_size:5; + u8 jitter_filter_type:2; + u8 reserved:1; +} __attribute__((__packed__)); + +/** This register 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_query14 { + u8 light_control:2; + bool is_clear:1; + u8 clickpad_props:2; + u8 mouse_buttons:2; + bool has_advanced_gestures:1; +} __attribute__((__packed__)); + +#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 + +/** See notes above for information about specific query register sets. + */ +struct f11_2d_sensor_queries { + struct f11_2d_sensor_info info; + + struct f11_2d_abs_info abs_info; + + u8 f11_2d_query6; + + struct f11_2d_gesture_info gesture_info; + + struct f11_2d_query9 query9; + + struct f11_2d_ts_info ts_info; + + struct f11_2d_query11 features_1; + + struct f11_2d_query12 features_2; + + struct f11_2d_query13 jitter_filter; + + struct f11_2d_query14 info_2; +}; + +/** + * @reporting_mode - controls how often finger position data is reported. + * @abs_pos_filt - when set, enables various noise and jitter filtering + * algorithms for absolute reports. + * @rel_pos_filt - when set, enables various noise and jitter filtering + * algorithms for relative reports. + * @rel_ballistics - enables ballistics processing for the relative finger + * motion on the 2-D sensor. + * @dribble - enables the dribbling feature. + * @report_beyond_clip - when this is set, fingers outside the active area + * specified by the x_clip and y_clip registers will be reported, but with + * reported finger position clipped to the edge of the active area. + * @palm_detect_thresh - the threshold at which a wide finger is considered a + * palm. A value of 0 inhibits palm detection. + * @motion_sensitivity - specifies the threshold an anchored finger must move + * before it is considered no longer anchored. High values mean more + * sensitivity. + * @man_track_en - for anchored finger tracking, whether the host (1) or the + * device (0) determines which finger is the tracked finger. + * @man_tracked_finger - when man_track_en is 1, specifies whether finger 0 or + * finger 1 is the tracked finger. + * @delta_x_threshold - 2-D position update interrupts are inhibited unless + * the finger moves more than a certain threshold distance along the X axis. + * @delta_y_threshold - 2-D position update interrupts are inhibited unless + * the finger moves more than a certain threshold distance along the Y axis. + * @velocity - When rel_ballistics is set, this register defines the + * velocity ballistic parameter applied to all relative motion events. + * @acceleration - When rel_ballistics is set, this register defines the + * acceleration ballistic parameter applied to all relative motion events. + * @sensor_max_x_pos - the maximum X coordinate reported by the sensor. + * @sensor_max_y_pos - the maximum Y coordinate reported by the sensor. + */ +struct f11_2d_ctrl0_9 { + /* F11_2D_Ctrl0 */ + u8 reporting_mode:3; + bool abs_pos_filt:1; + bool rel_pos_filt:1; + bool rel_ballistics:1; + bool dribble:1; + bool report_beyond_clip:1; + /* F11_2D_Ctrl1 */ + u8 palm_detect_thres:4; + u8 motion_sensitivity:2; + bool man_track_en:1; + bool man_tracked_finger:1; + /* F11_2D_Ctrl2 and 3 */ + u8 delta_x_threshold:8; + u8 delta_y_threshold:8; + /* F11_2D_Ctrl4 and 5 */ + u8 velocity:8; + u8 acceleration:8; + /* F11_2D_Ctrl6 thru 9 */ + u16 sensor_max_x_pos:12; + u8 ctrl7_reserved:4; + u16 sensor_max_y_pos:12; + u8 ctrl9_reserved:4; +} __attribute__((__packed__)); + +/** + * @single_tap_int_enable - enable tap gesture recognition. + * @tap_n_hold_int_enable - enable tap-and-hold gesture recognition. + * @double_tap_int_enable - enable double-tap gesture recognition. + * @early_tap_int_enable - enable early tap notification. + * @flick_int_enable - enable flick detection. + * @press_int_enable - enable press gesture recognition. + * @pinch_int_enable - enable pinch detection. + */ +struct f11_2d_ctrl10 { + bool single_tap_int_enable:1; + bool tap_n_hold_int_enable:1; + bool double_tap_int_enable:1; + bool early_tap_int_enable:1; + bool flick_int_enable:1; + bool press_int_enable:1; + bool pinch_int_enable:1; + u8 reserved:1; +} __attribute__((__packed__)); + +/** + * @palm_detect_int_enable - enable palm detection feature. + * @rotate_int_enable - enable rotate gesture detection. + * @touch_shape_int_enable - enable the TouchShape feature. + * @scroll_zone_int_enable - enable scroll zone reporting. + * @multi_finger_scroll_int_enable - enable the multfinger scroll feature. + */ +struct f11_2d_ctrl11 { + bool palm_detect_int_enable:1; + bool rotate_int_enable:1; + bool touch_shape_int_enable:1; + bool scroll_zone_int_enable:1; + bool multi_finger_scroll_int_enable:1; + u8 reserved:3; +} __attribute__((__packed__)); + +/** + * @sens_adjustment - allows a host to alter the overall sensitivity of a + * 2-D sensor. A positive value in this register will make the sensor more + * sensitive than the factory defaults, and a negative value will make it + * less sensitive. + * @hyst_adjustment - increase the touch/no-touch hysteresis by 2 Z-units for + * each one unit increment in this setting. + */ +struct f11_2d_ctrl14 { + s8 sens_adjustment:5; + u8 hyst_adjustment:3; +} __attribute__((__packed__)); + +/** + * @max_tap_time - the maximum duration of a tap, in 10-millisecond units. + */ +struct f11_2d_ctrl15 { + u8 max_tap_time:8; +} __attribute__((__packed__)); + +/** + * @min_press_time - The minimum duration required for stationary finger(s) to + * generate a press gesture, in 10-millisecond units. + */ +struct f11_2d_ctrl16 { + u8 min_press_time:8; +} __attribute__((__packed__)); + +/** + * @max_tap_distance - Determines the maximum finger movement allowed during + * a tap, in 0.1-millimeter units. + */ +struct f11_2d_ctrl17 { + u8 max_tap_distance:8; +} __attribute__((__packed__)); + +/** + * @min_flick_distance - the minimum finger movement for a flick gesture, + * in 1-millimeter units. + * @min_flick_speed - the minimum finger speed for a flick gesture, in + * 10-millimeter/second units. + */ +struct f11_2d_ctrl18_19 { + u8 min_flick_distance:8; + u8 min_flick_speed:8; +} __attribute__((__packed__)); + +/** + * @pen_detect_enable - enable reporting of stylus activity. + * @pen_jitter_filter_enable - Setting this enables the stylus anti-jitter + * filter. + * @pen_z_threshold - This is the stylus-detection lower threshold. Smaller + * values result in higher sensitivity. + */ +struct f11_2d_ctrl20_21 { + bool pen_detect_enable:1; + bool pen_jitter_filter_enable:1; + u8 ctrl20_reserved:6; + u8 pen_z_threshold:8; +} __attribute__((__packed__)); + +/** + * These are not accessible through sysfs yet. + * + * @proximity_detect_int_en - enable proximity detection feature. + * @proximity_jitter_filter_en - enables an anti-jitter filter on proximity + * data. + * @proximity_detection_z_threshold - the threshold for finger-proximity + * detection. + * @proximity_delta_x_threshold - In reduced-reporting modes, this is the + * threshold for proximate-finger movement in the direction parallel to the + * X-axis. + * @proximity_delta_y_threshold - In reduced-reporting modes, this is the + * threshold for proximate-finger movement in the direction parallel to the + * Y-axis. + * * @proximity_delta_Z_threshold - In reduced-reporting modes, this is the + * threshold for proximate-finger movement in the direction parallel to the + * Z-axis. + */ +struct f11_2d_ctrl22_26 { + /* control 22 */ + bool proximity_detect_int_en:1; + bool proximity_jitter_filter_en:1; + u8 f11_2d_ctrl6_b3__7:6; + + /* control 23 */ + u8 proximity_detection_z_threshold; + + /* control 24 */ + u8 proximity_delta_x_threshold; + + /* control 25 */ + u8 proximity_delta_y_threshold; + + /* control 26 */ + u8 proximity_delta_z_threshold; +} __attribute__((__packed__)); + +/** + * @palm_detecy_sensitivity - When this value is small, smaller objects will + * be identified as palms; when this value is large, only larger objects will + * be identified as palms. 0 represents the factory default. + * @suppress_on_palm_detect - when set, all F11 interrupts except palm_detect + * are suppressed while a palm is detected. + */ +struct f11_2d_ctrl27 { + s8 palm_detect_sensitivity:4; + bool suppress_on_palm_detect:1; + u8 f11_2d_ctrl27_b5__7:3; +} __attribute__((__packed__)); + +/** + * @multi_finger_scroll_mode - allows choice of multi-finger scroll mode and + * determines whether and how X or Y displacements are reported. + * @edge_motion_en - enables the edge_motion feature. + * @multi_finger_scroll_momentum - controls the length of time that scrolling + * continues after fingers have been lifted. + */ +struct f11_2d_ctrl28 { + u8 multi_finger_scroll_mode:2; + bool edge_motion_en:1; + bool f11_2d_ctrl28b_3:1; + u8 multi_finger_scroll_momentum:4; +} __attribute__((__packed__)); + +/** + * @z_touch_threshold - Specifies the finger-arrival Z threshold. Large values + * may cause smaller fingers to be rejected. + * @z_touch_hysteresis - Specifies the difference between the finger-arrival + * Z threshold and the finger-departure Z threshold. + */ +struct f11_2d_ctrl29_30 { + u8 z_touch_threshold; + u8 z_touch_hysteresis; +} __attribute__((__packed__)); + + +struct f11_2d_ctrl { + struct f11_2d_ctrl0_9 *ctrl0_9; + u16 ctrl0_9_address; + struct f11_2d_ctrl10 *ctrl10; + struct f11_2d_ctrl11 *ctrl11; + u8 ctrl12_size; + struct f11_2d_ctrl14 *ctrl14; + struct f11_2d_ctrl15 *ctrl15; + struct f11_2d_ctrl16 *ctrl16; + struct f11_2d_ctrl17 *ctrl17; + struct f11_2d_ctrl18_19 *ctrl18_19; + struct f11_2d_ctrl20_21 *ctrl20_21; + struct f11_2d_ctrl22_26 *ctrl22_26; + struct f11_2d_ctrl27 *ctrl27; + struct f11_2d_ctrl28 *ctrl28; + struct f11_2d_ctrl29_30 *ctrl29_30; +}; + +/** + * @x_msb - top 8 bits of X finger position. + * @y_msb - top 8 bits of Y finger position. + * @x_lsb - bottom 4 bits of X finger position. + * @y_lsb - bottom 4 bits of Y finger position. + * @w_y - contact patch width along Y axis. + * @w_x - contact patch width along X axis. + * @z - finger Z value (proxy for pressure). + */ +struct f11_2d_data_1_5 { + u8 x_msb; + u8 y_msb; + u8 x_lsb:4; + u8 y_lsb:4; + u8 w_y:4; + u8 w_x:4; + u8 z; +} __attribute__((__packed__)); + +/** + * @delta_x - relative motion along X axis. + * @delta_y - relative motion along Y axis. + */ +struct f11_2d_data_6_7 { + s8 delta_x; + s8 delta_y; +} __attribute__((__packed__)); + +/** + * @single_tap - a single tap was recognized. + * @tap_and_hold - a tap-and-hold gesture was recognized. + * @double_tap - a double tap gesture was recognized. + * @early_tap - a tap gesture might be happening. + * @flick - a flick gesture was detected. + * @press - a press gesture was recognized. + * @pinch - a pinch gesture was detected. + */ +struct f11_2d_data_8 { + bool single_tap:1; + bool tap_and_hold:1; + bool double_tap:1; + bool early_tap:1; + bool flick:1; + bool press:1; + bool pinch:1; +} __attribute__((__packed__)); + +/** + * @palm_detect - a palm or other large object is in contact with the sensor. + * @rotate - a rotate gesture was detected. + * @shape - a TouchShape has been activated. + * @scrollzone - scrolling data is available. + * @finger_count - number of fingers involved in the reported gesture. + */ +struct f11_2d_data_9 { + bool palm_detect:1; + bool rotate:1; + bool shape:1; + bool scrollzone:1; + u8 finger_count:3; +} __attribute__((__packed__)); + +/** + * @pinch_motion - when a pinch gesture is detected, this is the change in + * distance between the two fingers since this register was last read. + */ +struct f11_2d_data_10 { + s8 pinch_motion; +} __attribute__((__packed__)); + +/** + * @x_flick_dist - when a flick gesture is detected, the distance of flick + * gesture in X direction. + * @y_flick_dist - when a flick gesture is detected, the distance of flick + * gesture in Y direction. + * @flick_time - the total time of the flick gesture, in 10ms units. + */ +struct f11_2d_data_10_12 { + s8 x_flick_dist; + s8 y_flick_dist; + u8 flick_time; +} __attribute__((__packed__)); + +/** + * @motion - when a rotate gesture is detected, the accumulated distance + * of the rotate motion. Clockwise motion is positive and counterclockwise + * motion is negative. + * @finger_separation - when a rotate gesture is detected, the distance + * between the fingers. + */ +struct f11_2d_data_11_12 { + s8 motion; + u8 finger_separation; +} __attribute__((__packed__)); + +/** + * @shape_n - a bitmask of the currently activate TouchShapes (if any). + */ +struct f11_2d_data_13 { + u8 shape_n; +} __attribute__((__packed__)); + +/** + * @horizontal - chiral scrolling distance in the X direction. + * @vertical - chiral scrolling distance in the Y direction. + */ +struct f11_2d_data_14_15 { + s8 horizontal; + s8 vertical; +} __attribute__((__packed__)); + +/** + * @x_low - scroll zone motion along the lower edge of the sensor. + * @y_right - scroll zone motion along the right edge of the sensor. + * @x_upper - scroll zone motion along the upper edge of the sensor. + * @y_left - scroll zone motion along the left edge of the sensor. + */ +struct f11_2d_data_14_17 { + s8 x_low; + s8 y_right; + s8 x_upper; + s8 y_left; +} __attribute__((__packed__)); + +struct f11_2d_data { + u8 *f_state; + const struct f11_2d_data_1_5 *abs_pos; + const struct f11_2d_data_6_7 *rel_pos; + const struct f11_2d_data_8 *gest_1; + const struct f11_2d_data_9 *gest_2; + const struct f11_2d_data_10 *pinch; + const struct f11_2d_data_10_12 *flick; + const struct f11_2d_data_11_12 *rotate; + const struct f11_2d_data_13 *shapes; + const struct f11_2d_data_14_15 *multi_scroll; + const struct f11_2d_data_14_17 *scroll_zones; +}; + +/** + * @axis_align - controls parameters that are useful in system prototyping + * and bring up. + * @sens_query - query registers for this particular sensor. + * @data - the data reported by this sensor, mapped into a collection of + * structs. + * @max_x - The maximum X coordinate that will be reported by this sensor. + * @max_y - The maximum Y coordinate that will be reported by this sensor. + * @nbr_fingers - How many fingers can this sensor report? + * @data_pkt - buffer for data reported by this sensor. + * @pkt_size - number of bytes in that buffer. + * @sensor_index - identifies this particular 2D touch sensor + * @type_a - some early RMI4 2D sensors do not reliably track the finger + * position when two fingers are on the device. When this is true, we + * assume we have one of those sensors and report events appropriately. + * @sensor_type - indicates whether we're touchscreen or touchpad. + * @input - input device for absolute pointing stream + * @mouse_input - input device for relative pointing stream. + * @input_phys - buffer for the absolute phys name for this sensor. + * @input_mouse_phys - buffer for the relative phys name for this sensor. + * @debugfs_flip - inverts one or both axes. Useful in prototyping new + * systems. + * @debugfs_flip - coordinate clipping range for one or both axes. Useful in + * prototyping new systems. + * @debugfs_delta_threshold - adjusts motion sensitivity for relative reports + * and (in reduced reporting mode) absolute reports. Useful in prototyping new + * systems. + * @debugfs_offset - offsets one or both axes. Useful in prototyping new + * systems. + * @debugfs_swap - swaps X and Y axes. Useful in prototyping new systems. + * @debugfs_type_a - forces type A behavior. Useful in bringing up old systems + * when you're not sure if you've got a Type A or Type B sensor. + */ +struct f11_2d_sensor { + struct rmi_f11_2d_axis_alignment axis_align; + struct f11_2d_sensor_queries sens_query; + struct f11_2d_data data; + u16 max_x; + u16 max_y; + u8 nbr_fingers; + u8 *data_pkt; + int pkt_size; + u8 sensor_index; + bool type_a; + enum rmi_f11_sensor_type sensor_type; + struct input_dev *input; + struct input_dev *mouse_input; + struct rmi_function_container *fc; + char input_phys[NAME_BUFFER_SIZE]; + char input_phys_mouse[NAME_BUFFER_SIZE]; + +#ifdef CONFIG_RMI4_DEBUG + struct dentry *debugfs_flip; + struct dentry *debugfs_clip; + struct dentry *debugfs_delta_threshold; + struct dentry *debugfs_offset; + struct dentry *debugfs_swap; + struct dentry *debugfs_type_a; +#endif +}; + +/** 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. + * @debugfs_rezero_wait - allows control of the rezero_wait value. Useful + * during system prototyping. + */ +struct f11_data { + struct f11_2d_device_query dev_query; + struct f11_2d_ctrl dev_controls; + struct mutex dev_controls_mutex; + u16 rezero_wait_ms; + struct f11_2d_sensor sensors[F11_MAX_NUM_OF_SENSORS]; + +#ifdef CONFIG_RMI4_DEBUG + struct dentry *debugfs_rezero_wait; +#endif +}; + +enum finger_state_values { + F11_NO_FINGER = 0x00, + F11_PRESENT = 0x01, + F11_INACCURATE = 0x02, + F11_RESERVED = 0x03 +}; + +static ssize_t f11_maxPos_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct rmi_function_container *fc; + struct f11_data *data; + + fc = to_rmi_function_container(dev); + data = fc->data; + + return snprintf(buf, PAGE_SIZE, "%u %u\n", + data->sensors[0].max_x, data->sensors[0].max_y); +} + +static ssize_t f11_relreport_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct rmi_function_container *fc; + struct f11_data *instance_data; + + fc = to_rmi_function_container(dev); + instance_data = fc->data; + + return snprintf(buf, PAGE_SIZE, "%u\n", + instance_data-> + sensors[0].axis_align.rel_report_enabled); +} + +static ssize_t f11_relreport_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct rmi_function_container *fc; + struct f11_data *instance_data; + unsigned int new_value; + + fc = to_rmi_function_container(dev); + instance_data = fc->data; + + + if (sscanf(buf, "%u", &new_value) != 1) + return -EINVAL; + if (new_value > 1) + return -EINVAL; + instance_data->sensors[0].axis_align.rel_report_enabled = new_value; + + return count; +} + +static ssize_t f11_rezero_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct rmi_function_container *fc = NULL; + unsigned int rezero; + int retval = 0; + + fc = to_rmi_function_container(dev); + + if (sscanf(buf, "%u", &rezero) != 1) + return -EINVAL; + if (rezero > 1) + return -EINVAL; + + /* Per spec, 0 has no effect, so we skip it entirely. */ + if (rezero) { + /* Command register always reads as 0, so just use a local. */ + struct f11_2d_commands commands = { + .rezero = true, + }; + + retval = rmi_write_block(fc->rmi_dev, fc->fd.command_base_addr, + &commands, sizeof(commands)); + if (retval < 0) { + dev_err(dev, "%s: failed to issue rezero command, error = %d.", + __func__, retval); + return retval; + } + } + + return count; +} + +static struct device_attribute attrs[] = { + __ATTR(relreport, RMI_RW_ATTR, f11_relreport_show, f11_relreport_store), + __ATTR(maxPos, RMI_RO_ATTR, f11_maxPos_show, NULL), + __ATTR(rezero, RMI_WO_ATTR, NULL, f11_rezero_store) +}; + +#ifdef CONFIG_RMI4_DEBUG + +struct sensor_debugfs_data { + bool done; + struct f11_2d_sensor *sensor; +}; + +static int sensor_debug_open(struct inode *inodep, struct file *filp) +{ + struct sensor_debugfs_data *data; + struct f11_2d_sensor *sensor = inodep->i_private; + + data = kzalloc(sizeof(struct sensor_debugfs_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->sensor = sensor; + filp->private_data = data; + return 0; +} + +static int sensor_debug_release(struct inode *inodep, struct file *filp) +{ + kfree(filp->private_data); + return 0; +} + +static ssize_t flip_read(struct file *filp, char __user *buffer, size_t size, + loff_t *offset) { + int retval; + char *local_buf; + struct sensor_debugfs_data *data = filp->private_data; + + if (data->done) + return 0; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + data->done = 1; + + retval = snprintf(local_buf, size, "%u %u\n", + data->sensor->axis_align.flip_x, + data->sensor->axis_align.flip_y); + + if (retval <= 0 || copy_to_user(buffer, local_buf, retval)) + retval = -EFAULT; + kfree(local_buf); + + return retval; +} + +static ssize_t flip_write(struct file *filp, const char __user *buffer, + size_t size, loff_t *offset) { + int retval; + char *local_buf; + unsigned int new_X; + unsigned int new_Y; + struct sensor_debugfs_data *data = filp->private_data; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + retval = copy_from_user(local_buf, buffer, size); + if (retval) { + kfree(local_buf); + return -EFAULT; + } + + retval = sscanf(local_buf, "%u %u", &new_X, &new_Y); + kfree(local_buf); + if (retval != 2 || new_X > 1 || new_Y > 1) + return -EINVAL; + + data->sensor->axis_align.flip_x = new_X; + data->sensor->axis_align.flip_y = new_Y; + + return size; +} + +static const struct file_operations flip_fops = { + .owner = THIS_MODULE, + .open = sensor_debug_open, + .release = sensor_debug_release, + .read = flip_read, + .write = flip_write, +}; + +static ssize_t delta_threshold_read(struct file *filp, char __user *buffer, + size_t size, loff_t *offset) { + int retval; + char *local_buf; + struct sensor_debugfs_data *data = filp->private_data; + struct f11_data *f11 = data->sensor->fc->data; + struct f11_2d_ctrl *ctrl = &f11->dev_controls; + + if (data->done) + return 0; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + data->done = 1; + + retval = snprintf(local_buf, size, "%u %u\n", + ctrl->ctrl0_9->delta_x_threshold, + ctrl->ctrl0_9->delta_y_threshold); + + if (retval <= 0 || copy_to_user(buffer, local_buf, retval)) + retval = -EFAULT; + kfree(local_buf); + + return retval; + +} + +static ssize_t delta_threshold_write(struct file *filp, + const char __user *buffer, size_t size, loff_t *offset) { + int retval; + char *local_buf; + unsigned int new_X, new_Y; + u8 save_X, save_Y; + int rc; + struct sensor_debugfs_data *data = filp->private_data; + struct f11_data *f11 = data->sensor->fc->data; + struct f11_2d_ctrl *ctrl = &f11->dev_controls; + struct rmi_device *rmi_dev = data->sensor->fc->rmi_dev; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + retval = copy_from_user(local_buf, buffer, size); + if (retval) { + kfree(local_buf); + return -EFAULT; + } + + retval = sscanf(local_buf, "%u %u", &new_X, &new_Y); + kfree(local_buf); + if (retval != 2 || new_X > 1 || new_Y > 1) + return -EINVAL; + + save_X = ctrl->ctrl0_9->delta_x_threshold; + save_Y = ctrl->ctrl0_9->delta_y_threshold; + + ctrl->ctrl0_9->delta_x_threshold = new_X; + ctrl->ctrl0_9->delta_y_threshold = new_Y; + rc = rmi_write_block(rmi_dev, ctrl->ctrl0_9_address, + ctrl->ctrl0_9, sizeof(*ctrl->ctrl0_9)); + if (rc < 0) { + dev_warn(&data->sensor->fc->dev, + "Failed to write to delta_threshold. Code: %d.\n", + rc); + ctrl->ctrl0_9->delta_x_threshold = save_X; + ctrl->ctrl0_9->delta_y_threshold = save_Y; + } + + return size; +} + +static const struct file_operations delta_threshold_fops = { + .owner = THIS_MODULE, + .open = sensor_debug_open, + .release = sensor_debug_release, + .read = delta_threshold_read, + .write = delta_threshold_write, +}; + +static ssize_t offset_read(struct file *filp, char __user *buffer, size_t size, + loff_t *offset) { + int retval; + char *local_buf; + struct sensor_debugfs_data *data = filp->private_data; + + if (data->done) + return 0; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + data->done = 1; + + retval = snprintf(local_buf, size, "%u %u\n", + data->sensor->axis_align.offset_X, + data->sensor->axis_align.offset_Y); + + if (retval <= 0 || copy_to_user(buffer, local_buf, retval)) + retval = -EFAULT; + kfree(local_buf); + + return retval; +} + +static ssize_t offset_write(struct file *filp, const char __user *buffer, + size_t size, loff_t *offset) +{ + int retval; + char *local_buf; + int new_X; + int new_Y; + struct sensor_debugfs_data *data = filp->private_data; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + retval = copy_from_user(local_buf, buffer, size); + if (retval) { + kfree(local_buf); + return -EFAULT; + } + retval = sscanf(local_buf, "%u %u", &new_X, &new_Y); + kfree(local_buf); + if (retval != 2) + return -EINVAL; + + data->sensor->axis_align.offset_X = new_X; + data->sensor->axis_align.offset_Y = new_Y; + + return size; +} + +static const struct file_operations offset_fops = { + .owner = THIS_MODULE, + .open = sensor_debug_open, + .release = sensor_debug_release, + .read = offset_read, + .write = offset_write, +}; + +static ssize_t clip_read(struct file *filp, char __user *buffer, size_t size, + loff_t *offset) { + int retval; + char *local_buf; + struct sensor_debugfs_data *data = filp->private_data; + + if (data->done) + return 0; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + data->done = 1; + + retval = snprintf(local_buf, size, "%u %u %u %u\n", + data->sensor->axis_align.clip_X_low, + data->sensor->axis_align.clip_X_high, + data->sensor->axis_align.clip_Y_low, + data->sensor->axis_align.clip_Y_high); + + if (retval <= 0 || copy_to_user(buffer, local_buf, retval)) + retval = -EFAULT; + kfree(local_buf); + + return retval; +} + +static ssize_t clip_write(struct file *filp, const char __user *buffer, + size_t size, loff_t *offset) +{ + int retval; + char *local_buf; + unsigned int new_X_low, new_X_high, new_Y_low, new_Y_high; + struct sensor_debugfs_data *data = filp->private_data; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + retval = copy_from_user(local_buf, buffer, size); + if (retval) { + kfree(local_buf); + return -EFAULT; + } + + retval = sscanf(local_buf, "%u %u %u %u", + &new_X_low, &new_X_high, &new_Y_low, &new_Y_high); + kfree(local_buf); + if (retval != 4) + return -EINVAL; + + if (new_X_low >= new_X_high || new_Y_low >= new_Y_high) + return -EINVAL; + + data->sensor->axis_align.clip_X_low = new_X_low; + data->sensor->axis_align.clip_X_high = new_X_high; + data->sensor->axis_align.clip_Y_low = new_Y_low; + data->sensor->axis_align.clip_Y_high = new_Y_high; + + return size; +} + +static const struct file_operations clip_fops = { + .owner = THIS_MODULE, + .open = sensor_debug_open, + .release = sensor_debug_release, + .read = clip_read, + .write = clip_write, +}; + +static ssize_t swap_read(struct file *filp, char __user *buffer, size_t size, + loff_t *offset) { + int retval; + char *local_buf; + struct sensor_debugfs_data *data = filp->private_data; + + if (data->done) + return 0; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + data->done = 1; + + retval = snprintf(local_buf, size, "%u\n", + data->sensor->axis_align.swap_axes); + + if (retval <= 0 || copy_to_user(buffer, local_buf, retval)) + retval = -EFAULT; + kfree(local_buf); + + return retval; +} + +static ssize_t swap_write(struct file *filp, const char __user *buffer, + size_t size, loff_t *offset) +{ + int retval; + char *local_buf; + int new_value; + struct sensor_debugfs_data *data = filp->private_data; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + retval = copy_from_user(local_buf, buffer, size); + if (retval) { + kfree(local_buf); + return -EFAULT; + } + retval = sscanf(local_buf, "%u", &new_value); + kfree(local_buf); + if (retval != 1 || new_value > 1) + return -EINVAL; + + data->sensor->axis_align.swap_axes = new_value; + return size; +} + +static const struct file_operations swap_fops = { + .owner = THIS_MODULE, + .open = sensor_debug_open, + .release = sensor_debug_release, + .read = swap_read, + .write = swap_write, +}; + +static ssize_t type_a_read(struct file *filp, char __user *buffer, size_t size, + loff_t *offset) { + int retval; + char *local_buf; + struct sensor_debugfs_data *data = filp->private_data; + + if (data->done) + return 0; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + data->done = 1; + + retval = snprintf(local_buf, size, "%u\n", + data->sensor->type_a); + + if (retval <= 0 || copy_to_user(buffer, local_buf, retval)) + retval = -EFAULT; + kfree(local_buf); + + return retval; +} + +static ssize_t type_a_write(struct file *filp, const char __user *buffer, + size_t size, loff_t *offset) +{ + int retval; + char *local_buf; + int new_value; + struct sensor_debugfs_data *data = filp->private_data; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + retval = copy_from_user(local_buf, buffer, size); + if (retval) { + kfree(local_buf); + return -EFAULT; + } + + retval = sscanf(local_buf, "%u", &new_value); + kfree(local_buf); + if (retval != 1 || new_value > 1) + return -EINVAL; + + data->sensor->type_a = new_value; + return size; +} + +static const struct file_operations type_a_fops = { + .owner = THIS_MODULE, + .open = sensor_debug_open, + .release = sensor_debug_release, + .read = type_a_read, + .write = type_a_write, +}; + +static int setup_sensor_debugfs(struct f11_2d_sensor *sensor) +{ + int retval = 0; + char fname[NAME_BUFFER_SIZE]; + struct rmi_function_container *fc = sensor->fc; + + if (!fc->debugfs_root) + return -ENODEV; + + retval = snprintf(fname, NAME_BUFFER_SIZE, "flip.%d", + sensor->sensor_index); + sensor->debugfs_flip = debugfs_create_file(fname, RMI_RW_ATTR, + fc->debugfs_root, sensor, &flip_fops); + if (!sensor->debugfs_flip) + dev_warn(&fc->dev, "Failed to create debugfs %s.\n", + fname); + + retval = snprintf(fname, NAME_BUFFER_SIZE, "clip.%d", + sensor->sensor_index); + sensor->debugfs_clip = debugfs_create_file(fname, RMI_RW_ATTR, + fc->debugfs_root, sensor, &clip_fops); + if (!sensor->debugfs_clip) + dev_warn(&fc->dev, "Failed to create debugfs %s.\n", + fname); + + retval = snprintf(fname, NAME_BUFFER_SIZE, "delta_threshold.%d", + sensor->sensor_index); + sensor->debugfs_clip = debugfs_create_file(fname, RMI_RW_ATTR, + fc->debugfs_root, sensor, + &delta_threshold_fops); + if (!sensor->debugfs_delta_threshold) + dev_warn(&fc->dev, "Failed to create debugfs %s.\n", + fname); + + retval = snprintf(fname, NAME_BUFFER_SIZE, "offset.%d", + sensor->sensor_index); + sensor->debugfs_offset = debugfs_create_file(fname, RMI_RW_ATTR, + fc->debugfs_root, sensor, &offset_fops); + if (!sensor->debugfs_offset) + dev_warn(&fc->dev, "Failed to create debugfs %s.\n", + fname); + + retval = snprintf(fname, NAME_BUFFER_SIZE, "swap.%d", + sensor->sensor_index); + sensor->debugfs_swap = debugfs_create_file(fname, RMI_RW_ATTR, + fc->debugfs_root, sensor, &swap_fops); + if (!sensor->debugfs_swap) + dev_warn(&fc->dev, "Failed to create debugfs %s.\n", + fname); + + retval = snprintf(fname, NAME_BUFFER_SIZE, "type_a.%d", + sensor->sensor_index); + sensor->debugfs_type_a = debugfs_create_file(fname, RMI_RW_ATTR, + fc->debugfs_root, sensor, &type_a_fops); + if (!sensor->debugfs_type_a) + dev_warn(&fc->dev, "Failed to create debugfs %s.\n", + fname); + + return retval; +} + +static void teardown_sensor_debugfs(struct f11_2d_sensor *sensor) +{ + if (sensor->debugfs_flip) + debugfs_remove(sensor->debugfs_flip); + + if (sensor->debugfs_clip) + debugfs_remove(sensor->debugfs_clip); + + if (sensor->debugfs_offset) + debugfs_remove(sensor->debugfs_offset); + + if (sensor->debugfs_swap) + debugfs_remove(sensor->debugfs_swap); + + if (sensor->debugfs_type_a) + debugfs_remove(sensor->debugfs_type_a); +} + +struct f11_debugfs_data { + bool done; + struct rmi_function_container *fc; +}; + +static int f11_debug_open(struct inode *inodep, struct file *filp) +{ + struct f11_debugfs_data *data; + struct rmi_function_container *fc = inodep->i_private; + + data = devm_kzalloc(&fc->dev, sizeof(struct f11_debugfs_data), + GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->fc = fc; + filp->private_data = data; + return 0; +} + +static ssize_t rezero_wait_read(struct file *filp, char __user *buffer, + size_t size, loff_t *offset) { + int retval; + char *local_buf; + struct f11_debugfs_data *data = filp->private_data; + struct f11_data *f11 = data->fc->data; + + if (data->done) + return 0; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + data->done = 1; + + retval = snprintf(local_buf, size, "%u\n", f11->rezero_wait_ms); + + if (retval <= 0 || copy_to_user(buffer, local_buf, retval)) + retval = -EFAULT; + kfree(local_buf); + + return retval; +} + +static ssize_t rezero_wait_write(struct file *filp, const char __user *buffer, + size_t size, loff_t *offset) +{ + int retval; + char *local_buf; + int new_value; + struct f11_debugfs_data *data = filp->private_data; + struct f11_data *f11 = data->fc->data; + + local_buf = kcalloc(size, sizeof(u8), GFP_KERNEL); + if (!local_buf) + return -ENOMEM; + + retval = copy_from_user(local_buf, buffer, size); + if (retval) { + kfree(local_buf); + return -EFAULT; + } + + retval = sscanf(local_buf, "%u", &new_value); + kfree(local_buf); + if (retval != 1 || new_value > 65535) + return -EINVAL; + + f11->rezero_wait_ms = new_value; + return size; +} + +static const struct file_operations rezero_wait_fops = { + .owner = THIS_MODULE, + .open = f11_debug_open, + .read = rezero_wait_read, + .write = rezero_wait_write, +}; + +static int setup_f11_debugfs(struct rmi_function_container *fc) +{ + struct f11_data *f11 = fc->data; + + if (!fc->debugfs_root) + return -ENODEV; + + f11->debugfs_rezero_wait = debugfs_create_file("rezero_wait", + RMI_RW_ATTR, fc->debugfs_root, fc, &rezero_wait_fops); + if (!f11->debugfs_rezero_wait) + dev_warn(&fc->dev, + "Failed to create debugfs rezero_wait.\n"); + + return 0; +} + +static void teardown_f11_debugfs(struct f11_data *f11) +{ + if (f11->debugfs_rezero_wait) + debugfs_remove(f11->debugfs_rezero_wait); +} +#endif +/* End adding debugfs */ + +/** F11_INACCURATE state is overloaded to indicate pen present. */ +#define F11_PEN F11_INACCURATE + +static int get_tool_type(struct f11_2d_sensor *sensor, u8 finger_state) +{ + if (IS_ENABLED(CONFIG_RMI4_F11_PEN) && + sensor->sens_query.query9.has_pen && + finger_state == F11_PEN) + return MT_TOOL_PEN; + return MT_TOOL_FINGER; +} + +static void rmi_f11_rel_pos_report(struct f11_2d_sensor *sensor, u8 n_finger) +{ + struct f11_2d_data *data = &sensor->data; + struct rmi_f11_2d_axis_alignment *axis_align = &sensor->axis_align; + s8 x, y; + s8 temp; + + x = data->rel_pos[n_finger].delta_x; + y = data->rel_pos[n_finger].delta_y; + + x = min(F11_REL_POS_MAX, max(F11_REL_POS_MIN, (int)x)); + y = min(F11_REL_POS_MAX, max(F11_REL_POS_MIN, (int)y)); + + if (axis_align->swap_axes) { + temp = x; + x = y; + y = temp; + } + if (axis_align->flip_x) + x = min(F11_REL_POS_MAX, -x); + if (axis_align->flip_y) + y = min(F11_REL_POS_MAX, -y); + + if (x || y) { + input_report_rel(sensor->input, REL_X, x); + input_report_rel(sensor->input, REL_Y, y); + input_report_rel(sensor->mouse_input, REL_X, x); + input_report_rel(sensor->mouse_input, REL_Y, y); + } + input_sync(sensor->mouse_input); +} + +static void rmi_f11_abs_pos_report(struct f11_data *f11, + struct f11_2d_sensor *sensor, + u8 finger_state, u8 n_finger) +{ + struct f11_2d_data *data = &sensor->data; + struct rmi_f11_2d_axis_alignment *axis_align = &sensor->axis_align; + int x, y, z; + int w_x, w_y, w_max, w_min, orient; + int temp; + + if (finger_state) { + x = ((data->abs_pos[n_finger].x_msb << 4) | + data->abs_pos[n_finger].x_lsb); + y = ((data->abs_pos[n_finger].y_msb << 4) | + data->abs_pos[n_finger].y_lsb); + z = data->abs_pos[n_finger].z; + w_x = data->abs_pos[n_finger].w_x; + w_y = data->abs_pos[n_finger].w_y; + w_max = max(w_x, w_y); + w_min = min(w_x, w_y); + + if (axis_align->swap_axes) { + temp = x; + x = y; + y = temp; + temp = w_x; + w_x = w_y; + w_y = temp; + } + + orient = w_x > w_y ? 1 : 0; + + if (axis_align->flip_x) + x = max(sensor->max_x - x, 0); + + if (axis_align->flip_y) + y = max(sensor->max_y - y, 0); + + /* + * here checking if X offset or y offset are specified is + * redundant. We just add the offsets or, clip the values + * + * note: offsets need to be done before clipping occurs, + * or we could get funny values that are outside + * clipping boundaries. + */ + x += axis_align->offset_X; + y += axis_align->offset_Y; + x = max(axis_align->clip_X_low, x); + y = max(axis_align->clip_Y_low, y); + if (axis_align->clip_X_high) + x = min(axis_align->clip_X_high, x); + if (axis_align->clip_Y_high) + y = min(axis_align->clip_Y_high, y); + + } + + /* Some UIs ignore W of zero, so we fudge it to 1 for pens. This + * only appears to be an issue when reporting pens, not plain old + * fingers. */ + if (IS_ENABLED(CONFIG_RMI4_F11_PEN) && + get_tool_type(sensor, finger_state) == MT_TOOL_PEN) { + w_max = max(1, w_max); + w_min = max(1, w_min); + } + + if (sensor->type_a) { + input_report_abs(sensor->input, ABS_MT_TRACKING_ID, n_finger); + input_report_abs(sensor->input, ABS_MT_TOOL_TYPE, + get_tool_type(sensor, finger_state)); + } else { + input_mt_slot(sensor->input, n_finger); + input_mt_report_slot_state(sensor->input, + get_tool_type(sensor, finger_state), finger_state); + } + + if (finger_state) { + input_report_abs(sensor->input, ABS_MT_PRESSURE, z); + input_report_abs(sensor->input, ABS_MT_TOUCH_MAJOR, w_max); + input_report_abs(sensor->input, ABS_MT_TOUCH_MINOR, w_min); + input_report_abs(sensor->input, ABS_MT_ORIENTATION, orient); + input_report_abs(sensor->input, ABS_MT_POSITION_X, x); + input_report_abs(sensor->input, ABS_MT_POSITION_Y, y); + dev_dbg(&sensor->fc->dev, + "finger[%d]:%d - x:%d y:%d z:%d w_max:%d w_min:%d\n", + n_finger, finger_state, x, y, z, w_max, w_min); + } + /* MT sync between fingers */ + if (sensor->type_a) + input_mt_sync(sensor->input); +} + +static void rmi_f11_finger_handler(struct f11_data *f11, + struct f11_2d_sensor *sensor) +{ + const u8 *f_state = sensor->data.f_state; + u8 finger_state; + u8 finger_pressed_count; + u8 i; + + for (i = 0, finger_pressed_count = 0; i < sensor->nbr_fingers; i++) { + /* Possible of having 4 fingers per f_statet register */ + finger_state = (f_state[i / 4] >> (2 * (i % 4))) & + FINGER_STATE_MASK; + if (finger_state == F11_RESERVED) { + pr_err("%s: Invalid finger state[%d]:0x%02x.", __func__, + i, finger_state); + continue; + } else if ((finger_state == F11_PRESENT) || + (finger_state == F11_INACCURATE)) { + finger_pressed_count++; + } + + if (sensor->data.abs_pos) + rmi_f11_abs_pos_report(f11, sensor, finger_state, i); + + if (sensor->data.rel_pos) + rmi_f11_rel_pos_report(sensor, i); + } + input_mt_sync(sensor->input); + input_sync(sensor->input); +} + +static int f11_2d_construct_data(struct f11_2d_sensor *sensor) +{ + struct f11_2d_sensor_queries *query = &sensor->sens_query; + struct f11_2d_data *data = &sensor->data; + int i; + + sensor->nbr_fingers = (query->info.number_of_fingers == 5 ? 10 : + query->info.number_of_fingers + 1); + + sensor->pkt_size = DIV_ROUND_UP(sensor->nbr_fingers, 4); + + if (query->info.has_abs) + sensor->pkt_size += (sensor->nbr_fingers * 5); + + if (query->info.has_rel) + sensor->pkt_size += (sensor->nbr_fingers * 2); + + /* Check if F11_2D_Query7 is non-zero */ + if (has_gesture_bits(&query->gesture_info, 0)) + sensor->pkt_size += sizeof(u8); + + /* Check if F11_2D_Query7 or F11_2D_Query8 is non-zero */ + if (has_gesture_bits(&query->gesture_info, 0) || + has_gesture_bits(&query->gesture_info, 1)) + sensor->pkt_size += sizeof(u8); + + if (query->gesture_info.has_pinch || query->gesture_info.has_flick + || query->gesture_info.has_rotate) { + sensor->pkt_size += 3; + if (!query->gesture_info.has_flick) + sensor->pkt_size--; + if (!query->gesture_info.has_rotate) + sensor->pkt_size--; + } + + if (query->gesture_info.has_touch_shapes) + sensor->pkt_size += + DIV_ROUND_UP(query->ts_info.nbr_touch_shapes + 1, 8); + + sensor->data_pkt = kzalloc(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->info.has_abs) { + data->abs_pos = (struct f11_2d_data_1_5 *) + &sensor->data_pkt[i]; + i += (sensor->nbr_fingers * 5); + } + + if (query->info.has_rel) { + data->rel_pos = (struct f11_2d_data_6_7 *) + &sensor->data_pkt[i]; + i += (sensor->nbr_fingers * 2); + } + + if (has_gesture_bits(&query->gesture_info, 0)) { + data->gest_1 = (struct f11_2d_data_8 *)&sensor->data_pkt[i]; + i++; + } + + if (has_gesture_bits(&query->gesture_info, 0) || + has_gesture_bits(&query->gesture_info, 1)) { + data->gest_2 = (struct f11_2d_data_9 *)&sensor->data_pkt[i]; + i++; + } + + if (query->gesture_info.has_pinch) { + data->pinch = (struct f11_2d_data_10 *)&sensor->data_pkt[i]; + i++; + } + + if (query->gesture_info.has_flick) { + if (query->gesture_info.has_pinch) { + data->flick = (struct f11_2d_data_10_12 *)data->pinch; + i += 2; + } else { + data->flick = (struct f11_2d_data_10_12 *) + &sensor->data_pkt[i]; + i += 3; + } + } + + if (query->gesture_info.has_rotate) { + if (query->gesture_info.has_flick) { + data->rotate = (struct f11_2d_data_11_12 *) + (data->flick + 1); + } else { + data->rotate = (struct f11_2d_data_11_12 *) + &sensor->data_pkt[i]; + i += 2; + } + } + + if (query->gesture_info.has_touch_shapes) + data->shapes = (struct f11_2d_data_13 *)&sensor->data_pkt[i]; + + return 0; +} + +static int f11_read_control_regs(struct rmi_function_container *fc, + struct f11_2d_ctrl *ctrl, u16 ctrl_base_addr) { + struct rmi_device *rmi_dev = fc->rmi_dev; + u16 read_address = ctrl_base_addr; + int error = 0; + + ctrl->ctrl0_9_address = read_address; + error = rmi_read_block(rmi_dev, read_address, ctrl->ctrl0_9, + sizeof(*ctrl->ctrl0_9)); + if (error < 0) { + dev_err(&fc->dev, "Failed to read ctrl0, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl0_9); + + if (ctrl->ctrl10) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl10, sizeof(*ctrl->ctrl10)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl10, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl10); + } + + if (ctrl->ctrl11) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl11, sizeof(*ctrl->ctrl11)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl11, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl11); + } + + if (ctrl->ctrl14) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl14, sizeof(*ctrl->ctrl14)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl14, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl14); + } + + if (ctrl->ctrl15) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl15, sizeof(*ctrl->ctrl15)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl15, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl15); + } + + if (ctrl->ctrl16) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl16, sizeof(*ctrl->ctrl16)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl16, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl16); + } + + if (ctrl->ctrl17) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl17, sizeof(*ctrl->ctrl17)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl17, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl17); + } + + if (ctrl->ctrl18_19) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl18_19, sizeof(*ctrl->ctrl18_19)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl18_19, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl18_19); + } + + if (ctrl->ctrl20_21) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl20_21, sizeof(*ctrl->ctrl20_21)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl20_21, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl20_21); + } + + if (ctrl->ctrl22_26) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl22_26, sizeof(*ctrl->ctrl22_26)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl22_26, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl22_26); + } + + if (ctrl->ctrl27) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl27, sizeof(*ctrl->ctrl27)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl27, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl27); + } + + if (ctrl->ctrl28) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl28, sizeof(*ctrl->ctrl28)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl28, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl28); + } + + if (ctrl->ctrl29_30) { + error = rmi_read_block(rmi_dev, read_address, + ctrl->ctrl29_30, sizeof(*ctrl->ctrl29_30)); + if (error < 0) { + dev_err(&fc->dev, + "Failed to read ctrl29_30, code: %d.\n", error); + return error; + } + read_address += sizeof(*ctrl->ctrl29_30); + } + return 0; +} + +static int f11_allocate_control_regs(struct rmi_function_container *fc, + struct f11_2d_device_query *device_query, + struct f11_2d_sensor_queries *sensor_query, + struct f11_2d_ctrl *ctrl, + u16 ctrl_base_addr) { + + ctrl->ctrl0_9 = devm_kzalloc(&fc->dev, sizeof(struct f11_2d_ctrl0_9), + GFP_KERNEL); + if (!ctrl->ctrl0_9) + return -ENOMEM; + if (has_gesture_bits(&sensor_query->gesture_info, 0)) { + ctrl->ctrl10 = devm_kzalloc(&fc->dev, + sizeof(struct f11_2d_ctrl10), GFP_KERNEL); + if (!ctrl->ctrl10) + return -ENOMEM; + } + + if (has_gesture_bits(&sensor_query->gesture_info, 1)) { + ctrl->ctrl11 = devm_kzalloc(&fc->dev, + sizeof(struct f11_2d_ctrl11), GFP_KERNEL); + if (!ctrl->ctrl11) + return -ENOMEM; + } + + if (device_query->has_query9 && sensor_query->query9.has_pen) { + ctrl->ctrl20_21 = devm_kzalloc(&fc->dev, + sizeof(struct f11_2d_ctrl20_21), GFP_KERNEL); + if (!ctrl->ctrl20_21) + return -ENOMEM; + } + + if (device_query->has_query9 && sensor_query->query9.has_proximity) { + ctrl->ctrl22_26 = devm_kzalloc(&fc->dev, + sizeof(struct f11_2d_ctrl22_26), GFP_KERNEL); + if (!ctrl->ctrl22_26) + return -ENOMEM; + } + + if (device_query->has_query9 && + (sensor_query->query9.has_palm_det_sensitivity || + sensor_query->query9.has_suppress_on_palm_detect)) { + ctrl->ctrl27 = devm_kzalloc(&fc->dev, + sizeof(struct f11_2d_ctrl27), GFP_KERNEL); + if (!ctrl->ctrl27) + return -ENOMEM; + } + + if (sensor_query->gesture_info.has_multi_finger_scroll) { + ctrl->ctrl28 = devm_kzalloc(&fc->dev, + sizeof(struct f11_2d_ctrl28), GFP_KERNEL); + if (!ctrl->ctrl28) + return -ENOMEM; + } + + if (device_query->has_query11 && + sensor_query->features_1.has_z_tuning) { + ctrl->ctrl29_30 = devm_kzalloc(&fc->dev, + sizeof(struct f11_2d_ctrl29_30), GFP_KERNEL); + if (!ctrl->ctrl29_30) + return -ENOMEM; + } + + return 0; +} + +static int f11_write_control_regs(struct rmi_function_container *fc, + struct f11_2d_sensor_queries *query, + struct f11_2d_ctrl *ctrl, + u16 ctrl_base_addr) +{ + struct rmi_device *rmi_dev = fc->rmi_dev; + u16 write_address = ctrl_base_addr; + int error; + + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl0_9, + sizeof(*ctrl->ctrl0_9)); + if (error < 0) + return error; + write_address += sizeof(ctrl->ctrl0_9); + + if (ctrl->ctrl10) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl10, sizeof(*ctrl->ctrl10)); + if (error < 0) + return error; + write_address++; + } + + if (ctrl->ctrl11) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl11, sizeof(*ctrl->ctrl11)); + if (error < 0) + return error; + write_address++; + } + + if (ctrl->ctrl14) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl14, sizeof(ctrl->ctrl14)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl15); + } + + if (ctrl->ctrl15) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl15, sizeof(*ctrl->ctrl15)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl15); + } + + if (ctrl->ctrl16) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl16, sizeof(*ctrl->ctrl16)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl16); + } + + if (ctrl->ctrl17) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl17, sizeof(*ctrl->ctrl17)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl17); + } + + if (ctrl->ctrl18_19) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl18_19, sizeof(*ctrl->ctrl18_19)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl18_19); + } + + if (ctrl->ctrl20_21) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl20_21, sizeof(*ctrl->ctrl20_21)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl20_21); + } + + if (ctrl->ctrl22_26) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl22_26, sizeof(*ctrl->ctrl22_26)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl22_26); + } + + if (ctrl->ctrl27) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl27, sizeof(*ctrl->ctrl27)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl27); + } + + if (ctrl->ctrl28) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl28, sizeof(*ctrl->ctrl28)); + if (error < 0) + return error; + write_address += sizeof(*ctrl->ctrl28); + } + + if (ctrl->ctrl29_30) { + error = rmi_write_block(rmi_dev, write_address, + ctrl->ctrl29_30, + sizeof(struct f11_2d_ctrl29_30)); + if (error < 0) + return error; + write_address += sizeof(struct f11_2d_ctrl29_30); + } + + return 0; +} + +static int rmi_f11_get_query_parameters(struct rmi_device *rmi_dev, + struct f11_2d_device_query *dev_query, + struct f11_2d_sensor_queries *sensor_query, + u16 query_base_addr) +{ + int query_size; + int rc; + + rc = rmi_read_block(rmi_dev, query_base_addr, + &sensor_query->info, sizeof(sensor_query->info)); + if (rc < 0) + return rc; + query_size = sizeof(sensor_query->info); + + if (sensor_query->info.has_abs) { + rc = rmi_read(rmi_dev, query_base_addr + query_size, + &sensor_query->abs_info); + if (rc < 0) + return rc; + query_size++; + } + + if (sensor_query->info.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->info.has_gestures) { + rc = rmi_read_block(rmi_dev, query_base_addr + query_size, + &sensor_query->gesture_info, + sizeof(sensor_query->gesture_info)); + if (rc < 0) + return rc; + query_size += sizeof(sensor_query->gesture_info); + } + + if (dev_query->has_query9) { + rc = rmi_read_block(rmi_dev, query_base_addr + query_size, + &sensor_query->query9, + sizeof(sensor_query->query9)); + if (rc < 0) + return rc; + query_size += sizeof(sensor_query->query9); + } + + if (sensor_query->gesture_info.has_touch_shapes) { + rc = rmi_read_block(rmi_dev, query_base_addr + query_size, + &sensor_query->ts_info, + sizeof(sensor_query->ts_info)); + if (rc < 0) + return rc; + query_size += sizeof(sensor_query->ts_info); + } + + if (dev_query->has_query11) { + rc = rmi_read_block(rmi_dev, query_base_addr + query_size, + &sensor_query->features_1, + sizeof(sensor_query->features_1)); + if (rc < 0) + return rc; + query_size += sizeof(sensor_query->features_1); + } + + if (dev_query->has_query12) { + rc = rmi_read_block(rmi_dev, query_base_addr + query_size, + &sensor_query->features_2, + sizeof(sensor_query->features_2)); + if (rc < 0) + return rc; + query_size += sizeof(sensor_query->features_2); + } + + if (sensor_query->abs_info.has_jitter_filter) { + rc = rmi_read_block(rmi_dev, query_base_addr + query_size, + &sensor_query->jitter_filter, + sizeof(sensor_query->jitter_filter)); + if (rc < 0) + return rc; + query_size += sizeof(sensor_query->jitter_filter); + } + + if (dev_query->has_query12 && sensor_query->features_2.has_info2) { + rc = rmi_read_block(rmi_dev, query_base_addr + query_size, + &sensor_query->info_2, + sizeof(sensor_query->info_2)); + if (rc < 0) + return rc; + query_size += sizeof(sensor_query->info_2); + } + + return query_size; +} + +/* This operation is done in a number of places, so we have a handy routine + * for it. + */ +static void f11_set_abs_params(struct rmi_function_container *fc, int index) +{ + struct f11_data *f11 = fc->data; + struct f11_2d_sensor *sensor = &f11->sensors[index]; + struct input_dev *input = sensor->input; + int device_x_max = + f11->dev_controls.ctrl0_9->sensor_max_x_pos; + int device_y_max = + f11->dev_controls.ctrl0_9->sensor_max_y_pos; + int x_min, x_max, y_min, y_max; + unsigned int input_flags; + + /* We assume touchscreen unless demonstrably a touchpad or specified + * as a touchpad in the platform data + */ + if (sensor->sensor_type == rmi_f11_sensor_touchpad || + (sensor->sens_query.features_2.has_info2 && + !sensor->sens_query.info_2.is_clear)) + input_flags = INPUT_PROP_POINTER; + else + input_flags = INPUT_PROP_DIRECT; + set_bit(input_flags, input->propbit); + + if (sensor->axis_align.swap_axes) { + int temp = device_x_max; + device_x_max = device_y_max; + device_y_max = temp; + } + /* Use the max X and max Y read from the device, or the clip values, + * whichever is stricter. + */ + x_min = sensor->axis_align.clip_X_low; + if (sensor->axis_align.clip_X_high) + x_max = min((int) device_x_max, + sensor->axis_align.clip_X_high); + else + x_max = device_x_max; + + y_min = sensor->axis_align.clip_Y_low; + if (sensor->axis_align.clip_Y_high) + y_max = min((int) device_y_max, + sensor->axis_align.clip_Y_high); + else + y_max = device_y_max; + + dev_dbg(&fc->dev, "Set ranges X=[%d..%d] Y=[%d..%d].", + x_min, x_max, y_min, y_max); + + input_set_abs_params(input, ABS_MT_PRESSURE, 0, + DEFAULT_MAX_ABS_MT_PRESSURE, 0, 0); + input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, + 0, DEFAULT_MAX_ABS_MT_TOUCH, 0, 0); + input_set_abs_params(input, ABS_MT_TOUCH_MINOR, + 0, DEFAULT_MAX_ABS_MT_TOUCH, 0, 0); + input_set_abs_params(input, ABS_MT_ORIENTATION, + 0, DEFAULT_MAX_ABS_MT_ORIENTATION, 0, 0); + input_set_abs_params(input, ABS_MT_TRACKING_ID, + DEFAULT_MIN_ABS_MT_TRACKING_ID, + DEFAULT_MAX_ABS_MT_TRACKING_ID, 0, 0); + /* TODO get max_x_pos (and y) from control registers. */ + input_set_abs_params(input, ABS_MT_POSITION_X, + x_min, x_max, 0, 0); + input_set_abs_params(input, ABS_MT_POSITION_Y, + y_min, y_max, 0, 0); + if (!sensor->type_a) + input_mt_init_slots(input, sensor->nbr_fingers, input_flags); + if (IS_ENABLED(CONFIG_RMI4_F11_PEN) && + sensor->sens_query.query9.has_pen) + input_set_abs_params(input, ABS_MT_TOOL_TYPE, + 0, MT_TOOL_MAX, 0, 0); + else + input_set_abs_params(input, ABS_MT_TOOL_TYPE, + 0, MT_TOOL_FINGER, 0, 0); +} + +static int rmi_f11_initialize(struct rmi_function_container *fc) +{ + struct rmi_device *rmi_dev = fc->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, temp; + int rc; + int i; + struct rmi_device_platform_data *pdata = to_rmi_platform_data(rmi_dev); + + dev_dbg(&fc->dev, "Initializing F11 values for %s.\n", + pdata->sensor_name); + + /* + ** init instance data, fill in values and create any sysfs files + */ + f11 = devm_kzalloc(&fc->dev, sizeof(struct f11_data), GFP_KERNEL); + if (!f11) + return -ENOMEM; + + fc->data = f11; + f11->rezero_wait_ms = pdata->f11_rezero_wait; + + query_base_addr = fc->fd.query_base_addr; + control_base_addr = fc->fd.control_base_addr; + + rc = rmi_read(rmi_dev, query_base_addr, &f11->dev_query); + if (rc < 0) + return rc; + + query_offset = (query_base_addr + 1); + /* Increase with one since number of sensors is zero based */ + for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) { + struct f11_2d_sensor *sensor = &f11->sensors[i]; + sensor->sensor_index = i; + sensor->fc = fc; + + rc = rmi_f11_get_query_parameters(rmi_dev, &f11->dev_query, + &sensor->sens_query, query_offset); + if (rc < 0) + return rc; + query_offset += rc; + + rc = f11_allocate_control_regs(fc, + &f11->dev_query, &sensor->sens_query, + &f11->dev_controls, control_base_addr); + if (rc < 0) { + dev_err(&fc->dev, + "Failed to allocate F11 control params.\n"); + return rc; + } + + rc = f11_read_control_regs(fc, &f11->dev_controls, + control_base_addr); + if (rc < 0) { + dev_err(&fc->dev, + "Failed to read F11 control params.\n"); + return rc; + } + + if (i < pdata->f11_sensor_count) { + sensor->axis_align = + pdata->f11_sensor_data[i].axis_align; + sensor->type_a = pdata->f11_sensor_data[i].type_a; + sensor->sensor_type = + pdata->f11_sensor_data[i].sensor_type; + } + + 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; + + if (sensor->axis_align.swap_axes) { + temp = max_x_pos; + max_x_pos = max_y_pos; + max_y_pos = temp; + } + sensor->max_x = max_x_pos; + sensor->max_y = max_y_pos; + + rc = f11_2d_construct_data(sensor); + if (rc < 0) + return rc; + + ctrl = &f11->dev_controls; + if (sensor->axis_align.delta_x_threshold) { + ctrl->ctrl0_9->delta_x_threshold = + sensor->axis_align.delta_x_threshold; + rc = rmi_write_block(rmi_dev, + ctrl->ctrl0_9_address, + ctrl->ctrl0_9, + sizeof(*ctrl->ctrl0_9)); + if (rc < 0) + dev_warn(&fc->dev, "Failed to write to delta_x_threshold %d. Code: %d.\n", + i, rc); + + } + + if (sensor->axis_align.delta_y_threshold) { + ctrl->ctrl0_9->delta_y_threshold = + sensor->axis_align.delta_y_threshold; + rc = rmi_write_block(rmi_dev, + ctrl->ctrl0_9_address, + ctrl->ctrl0_9, + sizeof(*ctrl->ctrl0_9)); + if (rc < 0) + dev_warn(&fc->dev, "Failed to write to delta_y_threshold %d. Code: %d.\n", + i, rc); + } + + if (IS_ENABLED(CONFIG_RMI4_DEBUG)) { + rc = setup_sensor_debugfs(sensor); + if (rc < 0) + dev_warn(&fc->dev, "Failed to setup debugfs for F11 sensor %d. Code: %d.\n", + i, rc); + } + } + + if (IS_ENABLED(CONFIG_RMI4_DEBUG)) { + rc = setup_f11_debugfs(fc); + if (rc < 0) + dev_warn(&fc->dev, "Failed to setup debugfs for F11. Code: %d.\n", + rc); + } + + mutex_init(&f11->dev_controls_mutex); + return 0; +} + +static int rmi_f11_register_devices(struct rmi_function_container *fc) +{ + struct rmi_device *rmi_dev = fc->rmi_dev; + struct f11_data *f11 = fc->data; + struct input_dev *input_dev; + struct input_dev *input_dev_mouse; + struct rmi_driver_data *driver_data = dev_get_drvdata(&rmi_dev->dev); + struct rmi_driver *driver = rmi_dev->driver; + int sensors_itertd = 0; + int i; + int rc; + int board, version; + + board = driver_data->board; + version = driver_data->rev; + + for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) { + struct f11_2d_sensor *sensor = &f11->sensors[i]; + sensors_itertd = i; + input_dev = input_allocate_device(); + if (!input_dev) { + rc = -ENOMEM; + goto error_unregister; + } + + sensor->input = input_dev; + if (driver->set_input_params) { + rc = driver->set_input_params(rmi_dev, input_dev); + if (rc < 0) { + dev_err(&fc->dev, + "%s: Error in setting input device.\n", + __func__); + goto error_unregister; + } + } + sprintf(sensor->input_phys, "%s.abs%d/input0", + dev_name(&fc->dev), i); + input_dev->phys = sensor->input_phys; + input_dev->dev.parent = &rmi_dev->dev; + input_set_drvdata(input_dev, f11); + + set_bit(EV_SYN, input_dev->evbit); + set_bit(EV_ABS, input_dev->evbit); + input_set_capability(input_dev, EV_KEY, BTN_TOUCH); + + f11_set_abs_params(fc, i); + + if (sensor->sens_query.info.has_rel) { + set_bit(EV_REL, input_dev->evbit); + set_bit(REL_X, input_dev->relbit); + set_bit(REL_Y, input_dev->relbit); + } + rc = input_register_device(input_dev); + if (rc < 0) { + input_free_device(input_dev); + sensor->input = NULL; + goto error_unregister; + } + + if (sensor->sens_query.info.has_rel) { + /*create input device for mouse events */ + input_dev_mouse = input_allocate_device(); + if (!input_dev_mouse) { + rc = -ENOMEM; + goto error_unregister; + } + + sensor->mouse_input = input_dev_mouse; + if (driver->set_input_params) { + rc = driver->set_input_params(rmi_dev, + input_dev_mouse); + if (rc < 0) { + dev_err(&fc->dev, + "%s: Error in setting input device.\n", + __func__); + goto error_unregister; + } + } + sprintf(sensor->input_phys_mouse, "%s.rel%d/input0", + dev_name(&fc->dev), i); + set_bit(EV_REL, input_dev_mouse->evbit); + set_bit(REL_X, input_dev_mouse->relbit); + set_bit(REL_Y, input_dev_mouse->relbit); + + set_bit(BTN_MOUSE, input_dev_mouse->evbit); + /* Register device's buttons and keys */ + set_bit(EV_KEY, input_dev_mouse->evbit); + set_bit(BTN_LEFT, input_dev_mouse->keybit); + set_bit(BTN_MIDDLE, input_dev_mouse->keybit); + set_bit(BTN_RIGHT, input_dev_mouse->keybit); + + rc = input_register_device(input_dev_mouse); + if (rc < 0) { + input_free_device(input_dev_mouse); + sensor->mouse_input = NULL; + goto error_unregister; + } + + set_bit(BTN_RIGHT, input_dev_mouse->keybit); + } + + } + + return 0; + +error_unregister: + for (; sensors_itertd > 0; sensors_itertd--) { + if (f11->sensors[sensors_itertd].input) { + if (f11->sensors[sensors_itertd].mouse_input) { + input_unregister_device( + f11->sensors[sensors_itertd].mouse_input); + f11->sensors[sensors_itertd].mouse_input = NULL; + } + input_unregister_device(f11->sensors[i].input); + f11->sensors[i].input = NULL; + } + } + + return rc; +} + +static void rmi_f11_free_devices(struct rmi_function_container *fc) +{ + struct f11_data *f11 = fc->data; + int i; + + for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) { + if (f11->sensors[i].input) + input_unregister_device(f11->sensors[i].input); + if (f11->sensors[i].mouse_input) + input_unregister_device(f11->sensors[i].mouse_input); + } +} + +static int rmi_f11_create_sysfs(struct rmi_function_container *fc) +{ + int attr_count = 0; + int rc; + + for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) { + if (sysfs_create_file + (&fc->dev.kobj, &attrs[attr_count].attr) < 0) { + dev_err(&fc->dev, "Failed to create sysfs file for %s.", + attrs[attr_count].attr.name); + rc = -ENODEV; + goto err_remove_sysfs; + } + } + + return 0; + +err_remove_sysfs: + for (attr_count--; attr_count >= 0; attr_count--) + sysfs_remove_file(&fc->dev.kobj, &attrs[attr_count].attr); + return rc; +} + +static int rmi_f11_config(struct rmi_function_container *fc) +{ + struct f11_data *f11 = fc->data; + int i; + int rc; + + for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) { + rc = f11_write_control_regs(fc, &f11->sensors[i].sens_query, + &f11->dev_controls, fc->fd.query_base_addr); + if (rc < 0) + return rc; + } + + return 0; +} + +int rmi_f11_attention(struct rmi_function_container *fc, + unsigned long *irq_bits) +{ + struct rmi_device *rmi_dev = fc->rmi_dev; + struct f11_data *f11 = fc->data; + u16 data_base_addr = fc->fd.data_base_addr; + u16 data_base_addr_offset = 0; + int error; + int i; + + for (i = 0; i < f11->dev_query.nbr_of_sensors + 1; i++) { + error = rmi_read_block(rmi_dev, + data_base_addr + data_base_addr_offset, + f11->sensors[i].data_pkt, + f11->sensors[i].pkt_size); + if (error < 0) + return error; + + rmi_f11_finger_handler(f11, &f11->sensors[i]); + data_base_addr_offset += f11->sensors[i].pkt_size; + } + + return 0; +} + +#ifdef CONFIG_PM +static int rmi_f11_resume(struct rmi_function_container *fc) +{ + struct rmi_device *rmi_dev = fc->rmi_dev; + struct f11_data *data = fc->data; + /* Command register always reads as 0, so we can just use a local. */ + struct f11_2d_commands commands = { + .rezero = true, + }; + int retval = 0; + + dev_dbg(&fc->dev, "Resuming...\n"); + if (!data->rezero_wait_ms) + return 0; + + mdelay(data->rezero_wait_ms); + + retval = rmi_write_block(rmi_dev, fc->fd.command_base_addr, + &commands, sizeof(commands)); + if (retval < 0) { + dev_err(&fc->dev, "%s: failed to issue rezero command, error = %d.", + __func__, retval); + return retval; + } + + return retval; +} +#endif /* CONFIG_PM */ + +static int f11_remove_device(struct device *dev) +{ + int attr_count = 0; + struct f11_data *f11; + struct rmi_function_container *fc = to_rmi_function_container(dev); + + f11 = fc->data; + + if (IS_ENABLED(CONFIG_RMI4_DEBUG)) { + int i; + + for (i = 0; i < f11->dev_query.nbr_of_sensors + 1; i++) + teardown_sensor_debugfs(&f11->sensors[i]); + teardown_f11_debugfs(f11); + } + + for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) + sysfs_remove_file(&fc->dev.kobj, &attrs[attr_count].attr); + + rmi_f11_free_devices(fc); + return 0; +} + +static int f11_device_init(struct rmi_function_container *fc) +{ + int rc; + + rc = rmi_f11_initialize(fc); + if (rc < 0) + return rc; + + rc = rmi_f11_register_devices(fc); + if (rc < 0) + return rc; + + rc = rmi_f11_create_sysfs(fc); + if (rc < 0) + return rc; + + return 0; +} + +static __devinit int f11_probe(struct device *dev) +{ + struct rmi_function_container *fc; + + if (dev->type != &rmi_function_type) + return 1; + + fc = to_rmi_function_container(dev); + if (fc->fd.function_number != FUNCTION_NUMBER) + return 1; + + return f11_device_init(fc); +} + + +static struct rmi_function_handler function_handler = { + .driver = { + .owner = THIS_MODULE, + .name = "rmi_f11", + .bus = &rmi_bus_type, + .probe = f11_probe, + .remove = f11_remove_device, + }, + .func = FUNCTION_NUMBER, + .config = rmi_f11_config, + .attention = rmi_f11_attention, +#ifdef CONFIG_HAS_EARLYSUSPEND + .late_resume = rmi_f11_resume +#elif defined(CONFIG_PM) + .resume = rmi_f11_resume +#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */ +}; + +static int __init rmi_f11_module_init(void) +{ + int error; + + error = driver_register(&function_handler.driver); + if (error < 0) { + pr_err("%s: register driver failed!\n", __func__); + return error; + } + + return 0; +} + +static void __exit rmi_f11_module_exit(void) +{ + driver_unregister(&function_handler.driver); +} + +module_init(rmi_f11_module_init); +module_exit(rmi_f11_module_exit); + +MODULE_AUTHOR("Christopher Heiny