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 */ 87