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[android-x86/frameworks-native.git] / services / inputflinger / host / InputDriver.h
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
29 namespace android {
30
31 class InputHostInterface;
32
33 class InputDriverInterface : public virtual RefBase {
34 protected:
35     InputDriverInterface() = default;
36     virtual ~InputDriverInterface() = default;
37
38 public:
39     virtual void init(InputHostInterface* host) = 0;
40
41     virtual void dump(String8& result) = 0;
42 };
43
44 class InputDriver : public InputDriverInterface {
45 public:
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
53 private:
54     String8 mName;
55     const input_module_t* mHal;
56 };
57
58
59 extern "C" {
60
61 input_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
65 input_device_definition_t* create_device_definition(input_host_t* host);
66
67 input_report_definition_t* create_input_report_definition(input_host_t* host);
68
69 input_report_definition_t* create_output_report_definition(input_host_t* host);
70
71 void input_device_definition_add_report(input_host_t* host,
72         input_device_definition_t* d, input_report_definition_t* r);
73
74 void input_report_definition_add_collection(input_host_t* host,
75         input_report_definition_t* report, input_collection_id_t id, int32_t arity);
76
77 void 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
81 void 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
86 input_device_handle_t* register_device(input_host_t* host,
87         input_device_identifier_t* id, input_device_definition_t* d);
88
89 void unregister_device(input_host_t* host, input_device_handle_t* handle);
90
91 input_report_t* input_allocate_report(input_host_t* host, input_report_definition_t* r);
92
93 void 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
96 void 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
99 void report_event(input_host_t* host, input_device_handle_t* d, input_report_t* report);
100
101 input_property_map_t* input_get_device_property_map(input_host_t* host,
102         input_device_identifier_t* id);
103
104 input_property_t* input_get_device_property(input_host_t* host, input_property_map_t* map,
105         const char* key);
106
107 const char* input_get_property_key(input_host_t* host, input_property_t* property);
108
109 const char* input_get_property_value(input_host_t* host, input_property_t* property);
110
111 void input_free_device_property(input_host_t* host, input_property_t* property);
112
113 void 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