InputDriver.h revision a16b98c64f5246650aa5b6bc397a2d1fa6539107 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_INPUT_DRIVER_H
18#define ANDROID_INPUT_DRIVER_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include "InputHost.h"
24
25#include <hardware/input.h>
26#include <utils/RefBase.h>
27#include <utils/String8.h>
28
29namespace android {
30
31class InputHostInterface;
32
33class InputDriverInterface : public virtual RefBase {
34protected:
35    InputDriverInterface() = default;
36    virtual ~InputDriverInterface() = default;
37
38public:
39    virtual void init(InputHostInterface* host) = 0;
40
41    virtual void dump(String8& result) = 0;
42};
43
44class InputDriver : public InputDriverInterface {
45public:
46    InputDriver(const char* name);
47    virtual ~InputDriver() = default;
48
49    virtual void init(InputHostInterface* host) override;
50
51    virtual void dump(String8& result) override;
52
53private:
54    String8 mName;
55    const input_module_t* mHal;
56};
57
58
59extern "C" {
60
61input_device_identifier_t* create_device_identifier(input_host_t* host,
62        const char* name, int32_t product_id, int32_t vendor_id,
63        input_bus_t bus, const char* unique_id);
64
65input_device_definition_t* create_device_definition(input_host_t* host);
66
67input_report_definition_t* create_input_report_definition(input_host_t* host);
68
69input_report_definition_t* create_output_report_definition(input_host_t* host);
70
71void input_device_definition_add_report(input_host_t* host,
72        input_device_definition_t* d, input_report_definition_t* r);
73
74void input_report_definition_add_collection(input_host_t* host,
75        input_report_definition_t* report, input_collection_id_t id, int32_t arity);
76
77void input_report_definition_declare_usage_int(input_host_t* host,
78        input_report_definition_t* report, input_collection_id_t id,
79        input_usage_t usage, int32_t min, int32_t max, float resolution);
80
81void input_report_definition_declare_usages_bool(input_host_t* host,
82        input_report_definition_t* report, input_collection_id_t id,
83        input_usage_t* usage, size_t usage_count);
84
85
86input_device_handle_t* register_device(input_host_t* host,
87        input_device_identifier_t* id, input_device_definition_t* d);
88
89void unregister_device(input_host_t* host, input_device_handle_t* handle);
90
91input_report_t* input_allocate_report(input_host_t* host, input_report_definition_t* r);
92
93void input_report_set_usage_int(input_host_t* host, input_report_t* r,
94        input_collection_id_t id, input_usage_t usage, int32_t value, int32_t arity_index);
95
96void input_report_set_usage_bool(input_host_t* host, input_report_t* r,
97        input_collection_id_t id, input_usage_t usage, bool value, int32_t arity_index);
98
99void report_event(input_host_t* host, input_device_handle_t* d, input_report_t* report);
100
101input_property_map_t* input_get_device_property_map(input_host_t* host,
102        input_device_identifier_t* id);
103
104input_property_t* input_get_device_property(input_host_t* host, input_property_map_t* map,
105        const char* key);
106
107const char* input_get_property_key(input_host_t* host, input_property_t* property);
108
109const char* input_get_property_value(input_host_t* host, input_property_t* property);
110
111void input_free_device_property(input_host_t* host, input_property_t* property);
112
113void input_free_device_property_map(input_host_t* host, input_property_map_t* map);
114}
115
116} // namespace android
117#endif // ANDROID_INPUT_DRIVER_H
118