drivers/input/rmi4/rmi_2d_sensor.h

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