LXR linux/drivers/input/rmi4/rmi_2d

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (c) 2011-2016 Synaptics Incorporated
   4 * Copyright (c) 2011 Unixphere
   5 */
   6
   7#ifndef _RMI_2D_SENSOR_H
   8#define _RMI_2D_SENSOR_H
   9
  10enum rmi_2d_sensor_object_type {
  11        RMI_2D_OBJECT_NONE,
  12        RMI_2D_OBJECT_FINGER,
  13        RMI_2D_OBJECT_STYLUS,
  14        RMI_2D_OBJECT_PALM,
  15        RMI_2D_OBJECT_UNCLASSIFIED,
  16};
  17
  18struct rmi_2d_sensor_abs_object {
  19        enum rmi_2d_sensor_object_type type;
  20        int mt_tool;
  21        u16 x;
  22        u16 y;
  23        u8 z;
  24        u8 wx;
  25        u8 wy;
  26};
  27
  28/**
  29 * @axis_align - controls parameters that are useful in system prototyping
  30 * and bring up.
  31 * @max_x - The maximum X coordinate that will be reported by this sensor.
  32 * @max_y - The maximum Y coordinate that will be reported by this sensor.
  33 * @nbr_fingers - How many fingers can this sensor report?
  34 * @data_pkt - buffer for data reported by this sensor.
  35 * @pkt_size - number of bytes in that buffer.
  36 * @attn_size - Size of the HID attention report (only contains abs data).
  37 * position when two fingers are on the device.  When this is true, we
  38 * assume we have one of those sensors and report events appropriately.
  39 * @sensor_type - indicates whether we're touchscreen or touchpad.
  40 * @input - input device for absolute pointing stream
  41 * @input_phys - buffer for the absolute phys name for this sensor.
  42 */
  43struct rmi_2d_sensor {
  44        struct rmi_2d_axis_alignment axis_align;
  45        struct input_mt_pos *tracking_pos;
  46        int *tracking_slots;
  47        bool kernel_tracking;
  48        struct rmi_2d_sensor_abs_object *objs;
  49        int dmax;
  50        u16 min_x;
  51        u16 max_x;
  52        u16 min_y;
  53        u16 max_y;
  54        u8 nbr_fingers;
  55        u8 *data_pkt;
  56        int pkt_size;
  57        int attn_size;
  58        bool topbuttonpad;
  59        enum rmi_sensor_type sensor_type;
  60        struct input_dev *input;
  61        struct rmi_function *fn;
  62        char input_phys[32];
  63        u8 report_abs;
  64        u8 report_rel;
  65        u8 x_mm;
  66        u8 y_mm;
  67        enum rmi_reg_state dribble;
  68        enum rmi_reg_state palm_detect;
  69};
  70
  71int rmi_2d_sensor_of_probe(struct device *dev,
  72                                struct rmi_2d_sensor_platform_data *pdata);
  73
  74void rmi_2d_sensor_abs_process(struct rmi_2d_sensor *sensor,
  75                                struct rmi_2d_sensor_abs_object *obj,
  76                                int slot);
  77
  78void rmi_2d_sensor_abs_report(struct rmi_2d_sensor *sensor,
  79                                struct rmi_2d_sensor_abs_object *obj,
  80                                int slot);
  81
  82void rmi_2d_sensor_rel_report(struct rmi_2d_sensor *sensor, int x, int y);
  83
  84int rmi_2d_sensor_configure_input(struct rmi_function *fn,
  85                                        struct rmi_2d_sensor *sensor);
  86#endif /* _RMI_2D_SENSOR_H */
  87