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 #pragma once 18 19 #include <stdint.h> 20 #include <sys/types.h> 21 22 #include "InputHost.h" 23 24 #include <hardware/input.h> 25 #include <utils/RefBase.h> 26 #include <utils/String8.h> 27 28 // Declare a concrete type for the HAL 29 struct input_host { 30 }; 31 32 namespace android { 33 34 class InputDriverInterface : public input_host_t, public virtual RefBase { 35 protected: 36 InputDriverInterface() = default; 37 virtual ~InputDriverInterface() = default; 38 39 public: 40 virtual void init() = 0; 41 42 virtual input_device_identifier_t* createDeviceIdentifier( 43 const char* name, int32_t productId, int32_t vendorId, 44 input_bus_t bus, const char* uniqueId) = 0; 45 virtual input_device_definition_t* createDeviceDefinition() = 0; 46 virtual input_report_definition_t* createInputReportDefinition() = 0; 47 virtual input_report_definition_t* createOutputReportDefinition() = 0; 48 virtual void freeReportDefinition(input_report_definition_t* reportDef) = 0; 49 50 virtual void inputDeviceDefinitionAddReport(input_device_definition_t* d, 51 input_report_definition_t* r) = 0; 52 virtual void inputReportDefinitionAddCollection(input_report_definition_t* report, 53 input_collection_id_t id, int32_t arity) = 0; 54 virtual void inputReportDefinitionDeclareUsageInt(input_report_definition_t* report, 55 input_collection_id_t id, input_usage_t usage, int32_t min, int32_t max, 56 float resolution) = 0; 57 virtual void inputReportDefinitionDeclareUsagesBool(input_report_definition_t* report, 58 input_collection_id_t id, input_usage_t* usage, size_t usageCount) = 0; 59 60 virtual input_device_handle_t* registerDevice(input_device_identifier_t* id, 61 input_device_definition_t* d) = 0; 62 virtual void unregisterDevice(input_device_handle_t* handle) = 0; 63 64 virtual input_report_t* inputAllocateReport(input_report_definition_t* r) = 0; 65 virtual void inputReportSetUsageInt(input_report_t* r, input_collection_id_t id, 66 input_usage_t usage, int32_t value, int32_t arity_index) = 0; 67 virtual void inputReportSetUsageBool(input_report_t* r, input_collection_id_t id, 68 input_usage_t usage, bool value, int32_t arity_index) = 0; 69 virtual void reportEvent(input_device_handle_t* d, input_report_t* report) = 0; 70 71 virtual input_property_map_t* inputGetDevicePropertyMap(input_device_identifier_t* id) = 0; 72 virtual input_property_t* inputGetDeviceProperty(input_property_map_t* map, 73 const char* key) = 0; 74 virtual const char* inputGetPropertyKey(input_property_t* property) = 0; 75 virtual const char* inputGetPropertyValue(input_property_t* property) = 0; 76 virtual void inputFreeDeviceProperty(input_property_t* property) = 0; 77 virtual void inputFreeDevicePropertyMap(input_property_map_t* map) = 0; 78 79 virtual void dump(String8& result) = 0; 80 }; 81 82 class InputDriver : public InputDriverInterface { 83 public: 84 explicit InputDriver(const char* name); 85 virtual ~InputDriver() = default; 86 87 virtual void init() override; 88 89 virtual input_device_identifier_t* createDeviceIdentifier( 90 const char* name, int32_t productId, int32_t vendorId, 91 input_bus_t bus, const char* uniqueId) override; 92 virtual input_device_definition_t* createDeviceDefinition() override; 93 virtual input_report_definition_t* createInputReportDefinition() override; 94 virtual input_report_definition_t* createOutputReportDefinition() override; 95 virtual void freeReportDefinition(input_report_definition_t* reportDef) override; 96 97 virtual void inputDeviceDefinitionAddReport(input_device_definition_t* d, 98 input_report_definition_t* r) override; 99 virtual void inputReportDefinitionAddCollection(input_report_definition_t* report, 100 input_collection_id_t id, int32_t arity) override; 101 virtual void inputReportDefinitionDeclareUsageInt(input_report_definition_t* report, 102 input_collection_id_t id, input_usage_t usage, int32_t min, int32_t max, 103 float resolution) override; 104 virtual void inputReportDefinitionDeclareUsagesBool(input_report_definition_t* report, 105 input_collection_id_t id, input_usage_t* usage, size_t usageCount) override; 106 107 virtual input_device_handle_t* registerDevice(input_device_identifier_t* id, 108 input_device_definition_t* d) override; 109 virtual void unregisterDevice(input_device_handle_t* handle) override; 110 111 virtual input_report_t* inputAllocateReport(input_report_definition_t* r) override; 112 virtual void inputReportSetUsageInt(input_report_t* r, input_collection_id_t id, 113 input_usage_t usage, int32_t value, int32_t arity_index) override; 114 virtual void inputReportSetUsageBool(input_report_t* r, input_collection_id_t id, 115 input_usage_t usage, bool value, int32_t arity_index) override; 116 virtual void reportEvent(input_device_handle_t* d, input_report_t* report) override; 117 118 virtual input_property_map_t* inputGetDevicePropertyMap(input_device_identifier_t* id) override; 119 virtual input_property_t* inputGetDeviceProperty(input_property_map_t* map, 120 const char* key) override; 121 virtual const char* inputGetPropertyKey(input_property_t* property) override; 122 virtual const char* inputGetPropertyValue(input_property_t* property) override; 123 virtual void inputFreeDeviceProperty(input_property_t* property) override; 124 virtual void inputFreeDevicePropertyMap(input_property_map_t* map) override; 125 126 virtual void dump(String8& result) override; 127 128 private: 129 String8 mName; 130 const input_module_t* mHal; 131 }; 132 133 134 extern "C" { 135 136 input_device_identifier_t* create_device_identifier(input_host_t* host, 137 const char* name, int32_t product_id, int32_t vendor_id, 138 input_bus_t bus, const char* unique_id); 139 140 input_device_definition_t* create_device_definition(input_host_t* host); 141 142 input_report_definition_t* create_input_report_definition(input_host_t* host); 143 144 input_report_definition_t* create_output_report_definition(input_host_t* host); 145 146 void free_report_definition(input_host_t* host, input_report_definition_t* report_def); 147 148 void input_device_definition_add_report(input_host_t* host, 149 input_device_definition_t* d, input_report_definition_t* r); 150 151 void input_report_definition_add_collection(input_host_t* host, 152 input_report_definition_t* report, input_collection_id_t id, int32_t arity); 153 154 void input_report_definition_declare_usage_int(input_host_t* host, 155 input_report_definition_t* report, input_collection_id_t id, 156 input_usage_t usage, int32_t min, int32_t max, float resolution); 157 158 void input_report_definition_declare_usages_bool(input_host_t* host, 159 input_report_definition_t* report, input_collection_id_t id, 160 input_usage_t* usage, size_t usage_count); 161 162 163 input_device_handle_t* register_device(input_host_t* host, 164 input_device_identifier_t* id, input_device_definition_t* d); 165 166 void unregister_device(input_host_t* host, input_device_handle_t* handle); 167 168 input_report_t* input_allocate_report(input_host_t* host, input_report_definition_t* r); 169 170 void input_report_set_usage_int(input_host_t* host, input_report_t* r, 171 input_collection_id_t id, input_usage_t usage, int32_t value, int32_t arity_index); 172 173 void input_report_set_usage_bool(input_host_t* host, input_report_t* r, 174 input_collection_id_t id, input_usage_t usage, bool value, int32_t arity_index); 175 176 void report_event(input_host_t* host, input_device_handle_t* d, input_report_t* report); 177 178 input_property_map_t* input_get_device_property_map(input_host_t* host, 179 input_device_identifier_t* id); 180 181 input_property_t* input_get_device_property(input_host_t* host, input_property_map_t* map, 182 const char* key); 183 184 const char* input_get_property_key(input_host_t* host, input_property_t* property); 185 186 const char* input_get_property_value(input_host_t* host, input_property_t* property); 187 188 void input_free_device_property(input_host_t* host, input_property_t* property); 189 190 void input_free_device_property_map(input_host_t* host, input_property_map_t* map); 191 } 192 193 } // namespace android 194