4 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
22 #include <sensor_common.h>
23 #include <sensor_loader.h>
24 #include <sensor_hal.h>
25 #include <sensor_base.h>
26 #include <sensor_log.h>
27 #include <physical_sensor.h>
28 #include <virtual_sensor.h>
29 #include <unordered_set>
33 #include <hrm_sensor.h>
35 #ifdef ENABLE_AUTO_ROTATION
36 #include <auto_rotation_sensor.h>
39 #include <gravity_sensor.h>
41 #ifdef ENABLE_LINEAR_ACCEL
42 #include <linear_accel_sensor.h>
44 #ifdef ENABLE_ORIENTATION
45 #include <orientation_sensor.h>
47 #ifdef ENABLE_ROTATION_VECTOR
48 #include <rotation_vector_sensor.h>
54 #define DEVICE_HAL_DIR_PATH "/usr/lib/sensor"
56 sensor_loader::sensor_loader()
60 sensor_loader::~sensor_loader()
62 sensor_device_map_t::iterator it_device;
63 std::vector<void *>::iterator it_handle;
65 for (it_device = m_devices.begin(); it_device != m_devices.end();)
66 it_device = m_devices.erase(it_device);
68 for (it_handle = m_handles.begin(); it_handle != m_handles.end(); ++it_handle)
74 sensor_loader& sensor_loader::get_instance()
76 static sensor_loader inst;
80 bool sensor_loader::load(void)
82 std::vector<string> device_hal_paths;
83 std::vector<string> unique_device_hal_paths;
85 get_paths_from_dir(string(DEVICE_HAL_DIR_PATH), device_hal_paths);
87 std::unordered_set<string> s;
88 auto unique = [&s](vector<string> &paths, const string &path) {
89 if (s.insert(path).second)
90 paths.push_back(path);
93 for_each(device_hal_paths.begin(), device_hal_paths.end(),
94 [&](const string &path) {
95 unique(unique_device_hal_paths, path);
99 for_each(unique_device_hal_paths.begin(), unique_device_hal_paths.end(),
100 [&](const string &path) {
102 load_sensor_devices(path, handle);
103 m_handles.push_back(handle);
113 bool sensor_loader::load_sensor_devices(const string &path, void* &handle)
115 sensor_device_t *_devices = NULL;
116 sensor_device *device = NULL;
117 const sensor_info_t *infos;
119 _I("load device: [%s]", path.c_str());
121 void *_handle = dlopen(path.c_str(), RTLD_NOW);
123 _E("Failed to dlopen(%s), dlerror : %s", path.c_str(), dlerror());
129 /* TODO: The out-param of the create function should be const */
130 create_t create_devices = (create_t) dlsym(_handle, "create");
131 if (!create_devices) {
132 _E("Failed to find symbols in %s", path.c_str());
137 int device_size = create_devices(&_devices);
139 _E("Failed to create devices, path is %s\n", path.c_str());
144 for (int i = 0; i < device_size; ++i) {
145 device = static_cast<sensor_device *>(_devices[i]);
146 std::shared_ptr<sensor_device> device_ptr(device);
148 int info_size = device_ptr->get_sensors(&infos);
149 for (int j = 0; j < info_size; ++j)
150 m_devices[&infos[j]] = device_ptr;
158 void sensor_loader::create_sensors(void)
160 /* HRM sensors need SENSOR_PERMISSION_BIO */
161 create_physical_sensors<hrm_sensor>(HRM_RAW_SENSOR);
162 create_physical_sensors<hrm_sensor>(HRM_SENSOR);
163 create_physical_sensors<hrm_sensor>(HRM_LED_GREEN_SENSOR);
164 create_physical_sensors<hrm_sensor>(HRM_LED_IR_SENSOR);
165 create_physical_sensors<hrm_sensor>(HRM_LED_RED_SENSOR);
167 create_physical_sensors<physical_sensor>(UNKNOWN_SENSOR);
169 #ifdef ENABLE_AUTO_ROTATION
170 create_virtual_sensors<auto_rotation_sensor>("Auto Rotation");
172 #ifdef ENABLE_ROTATION_VECTOR
173 create_virtual_sensors<rotation_vector_sensor>("Rotation Vector");
175 #ifdef ENABLE_GRAVITY
176 create_virtual_sensors<gravity_sensor>("Gravity");
178 #ifdef ENABLE_LINEAR_ACCEL
179 create_virtual_sensors<linear_accel_sensor>("Linear Accel");
181 #ifdef ENABLE_ORIENTATION
182 create_virtual_sensors<orientation_sensor>("Orientation");
186 template<typename _sensor>
187 void sensor_loader::create_physical_sensors(sensor_type_t type)
190 const sensor_info_t *info;
191 physical_sensor *sensor;
192 sensor_device *device;
194 sensor_device_map_t::iterator it;
196 for (it = m_devices.begin(); it != m_devices.end(); ++it) {
198 device = it->second.get();
200 if (type != UNKNOWN_SENSOR) {
201 if (type != (sensor_type_t)(info->type))
205 sensor = dynamic_cast<physical_sensor *>(create_sensor<_sensor>());
208 _E("Memory allocation failed[%s]", info->name);
212 sensor_type_t _type = (sensor_type_t)info->type;
213 index = (int32_t)m_sensors.count(_type);
215 sensor->set_id(((int64_t)_type << SENSOR_TYPE_SHIFT) | index);
216 sensor->set_sensor_info(info);
217 sensor->set_sensor_device(device);
219 std::shared_ptr<sensor_base> sensor_ptr(sensor);
220 m_sensors.insert(std::make_pair(_type, sensor_ptr));
222 _I("created [%s] sensor", sensor->get_name());
226 template <typename _sensor>
227 void sensor_loader::create_virtual_sensors(const char *name)
231 virtual_sensor *instance;
233 instance = dynamic_cast<virtual_sensor *>(create_sensor<_sensor>());
235 _E("Memory allocation failed[%s]", name);
239 if (!instance->init()) {
240 _E("Failed to init %s", name);
245 std::shared_ptr<sensor_base> sensor(instance);
246 type = sensor->get_type();
247 index = (int32_t)(m_sensors.count(type));
249 sensor->set_id((int64_t)type << SENSOR_TYPE_SHIFT | index);
251 m_sensors.insert(std::make_pair(type, sensor));
253 _I("created [%s] sensor", sensor->get_name());
256 template <typename _sensor>
257 sensor_base* sensor_loader::create_sensor(void)
259 sensor_base *instance = NULL;
262 instance = new _sensor;
263 } catch (std::exception &e) {
264 _E("Failed to create sensor, exception: %s", e.what());
267 _ERRNO(errno, _E, "Failed to create sensor");
274 void sensor_loader::show_sensor_info(void)
276 _I("========== Loaded sensor information ==========\n");
280 auto it = m_sensors.begin();
282 while (it != m_sensors.end()) {
283 sensor_base *sensor = it->second.get();
286 sensor->get_sensor_info(info);
287 _I("No:%d [%s]\n", ++index, sensor->get_name());
292 _I("===============================================\n");
295 bool sensor_loader::get_paths_from_dir(const string &dir_path, vector<string> &hal_paths)
298 struct dirent dir_entry;
299 struct dirent *result;
303 dir = opendir(dir_path.c_str());
306 _E("Failed to open dir: %s", dir_path.c_str());
311 error = readdir_r(dir, &dir_entry, &result);
319 name = string(dir_entry.d_name);
321 if (name == "." || name == "..")
324 hal_paths.push_back(dir_path + "/" + name);
331 sensor_base* sensor_loader::get_sensor(sensor_type_t type)
333 auto it = m_sensors.find(type);
335 if (it == m_sensors.end())
338 return it->second.get();
341 sensor_base* sensor_loader::get_sensor(sensor_id_t id)
343 vector<sensor_base *> sensors;
345 sensor_type_t type = static_cast<sensor_type_t> (id >> SENSOR_TYPE_SHIFT);
346 unsigned int index = (id & SENSOR_INDEX_MASK);
348 sensors = get_sensors(type);
350 if (index >= sensors.size())
353 return sensors[index];
356 vector<sensor_type_t> sensor_loader::get_sensor_types(void)
358 vector<sensor_type_t> sensor_types;
360 auto it = m_sensors.begin();
362 while (it != m_sensors.end()) {
363 sensor_types.push_back((sensor_type_t)(it->first));
364 it = m_sensors.upper_bound(it->first);
370 vector<sensor_base *> sensor_loader::get_sensors(sensor_type_t type)
372 vector<sensor_base *> sensor_list;
373 std::pair<sensor_map_t::iterator, sensor_map_t::iterator> ret;
375 if ((int)(type) == (int)SENSOR_DEVICE_ALL)
376 ret = std::make_pair(m_sensors.begin(), m_sensors.end());
378 ret = m_sensors.equal_range(type);
380 for (auto it = ret.first; it != ret.second; ++it)
381 sensor_list.push_back(it->second.get());
386 vector<sensor_base *> sensor_loader::get_virtual_sensors(void)
388 vector<sensor_base *> virtual_list;
391 for (auto it = m_sensors.begin(); it != m_sensors.end(); ++it) {
392 sensor = it->second.get();
394 if (!sensor || !sensor->is_virtual())
397 virtual_list.push_back(sensor);