drivers/input/rmi4/rmi_2d_sensor.h

   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
  10 enum 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
  18 struct 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  */
  43 struct 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
  71 int rmi_2d_sensor_of_probe(struct device *dev,
  72                                 struct rmi_2d_sensor_platform_data *pdata);
  73
  74 void rmi_2d_sensor_abs_process(struct rmi_2d_sensor *sensor,
  75                                 struct rmi_2d_sensor_abs_object *obj,
  76                                 int slot);
  77
  78 void rmi_2d_sensor_abs_report(struct rmi_2d_sensor *sensor,
  79                                 struct rmi_2d_sensor_abs_object *obj,
  80                                 int slot);
  81
  82 void rmi_2d_sensor_rel_report(struct rmi_2d_sensor *sensor, int x, int y);
  83
  84 int rmi_2d_sensor_configure_input(struct rmi_function *fn,
  85                                         struct rmi_2d_sensor *sensor);
  86 #endif /* _RMI_2D_SENSOR_H */