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 <external_sensor.h>
30 #include <unordered_set>
34 #include <hrm_sensor.h>
36 #ifdef ENABLE_AUTO_ROTATION
37 #include <auto_rotation_sensor.h>
40 #include <gravity_sensor.h>
42 #ifdef ENABLE_LINEAR_ACCEL
43 #include <linear_accel_sensor.h>
45 #ifdef ENABLE_ORIENTATION
46 #include <orientation_sensor.h>
48 #ifdef ENABLE_ROTATION_VECTOR
49 #include <rotation_vector_sensor.h>
55 #define DEVICE_HAL_DIR_PATH "/usr/lib/sensor"
57 sensor_loader::sensor_loader()
61 sensor_loader::~sensor_loader()
63 sensor_device_map_t::iterator it_device;
64 std::vector<void *>::iterator it_handle;
66 for (it_device = m_devices.begin(); it_device != m_devices.end();)
67 it_device = m_devices.erase(it_device);
69 for (it_handle = m_handles.begin(); it_handle != m_handles.end(); ++it_handle)
75 sensor_loader& sensor_loader::get_instance(void)
77 static sensor_loader inst;
81 bool sensor_loader::load(void)
83 std::vector<string> device_hal_paths;
84 std::vector<string> unique_device_hal_paths;
86 get_paths_from_dir(string(DEVICE_HAL_DIR_PATH), device_hal_paths);
88 std::unordered_set<string> s;
89 auto unique = [&s](vector<string> &paths, const string &path) {
90 if (s.insert(path).second)
91 paths.push_back(path);
94 for_each(device_hal_paths.begin(), device_hal_paths.end(),
95 [&](const string &path) {
96 unique(unique_device_hal_paths, path);
100 for_each(unique_device_hal_paths.begin(), unique_device_hal_paths.end(),
101 [&](const string &path) {
103 load_sensor_devices(path, handle);
104 m_handles.push_back(handle);
114 bool sensor_loader::load_sensor_devices(const string &path, void* &handle)
116 sensor_device_t *_devices = NULL;
117 sensor_device *device = NULL;
118 const sensor_info_t *infos;
120 _I("load device: [%s]", path.c_str());
122 void *_handle = dlopen(path.c_str(), RTLD_NOW);
124 _E("Failed to dlopen(%s), dlerror : %s", path.c_str(), dlerror());
130 /* TODO: The out-param of the create function should be const */
131 create_t create_devices = (create_t) dlsym(_handle, "create");
132 if (!create_devices) {
133 _E("Failed to find symbols in %s", path.c_str());
138 int device_size = create_devices(&_devices);
140 _E("Failed to create devices, path is %s\n", path.c_str());
145 for (int i = 0; i < device_size; ++i) {
146 device = static_cast<sensor_device *>(_devices[i]);
147 std::shared_ptr<sensor_device> device_ptr(device);
149 int info_size = device_ptr->get_sensors(&infos);
150 for (int j = 0; j < info_size; ++j)
151 m_devices[&infos[j]] = device_ptr;
159 void sensor_loader::create_sensors(void)
161 /* HRM sensors need SENSOR_PERMISSION_BIO */
162 create_physical_sensors<hrm_sensor>(HRM_RAW_SENSOR);
163 create_physical_sensors<hrm_sensor>(HRM_SENSOR);
164 create_physical_sensors<hrm_sensor>(HRM_LED_GREEN_SENSOR);
165 create_physical_sensors<hrm_sensor>(HRM_LED_IR_SENSOR);
166 create_physical_sensors<hrm_sensor>(HRM_LED_RED_SENSOR);
168 create_physical_sensors<physical_sensor>(UNKNOWN_SENSOR);
170 #ifdef ENABLE_AUTO_ROTATION
171 create_virtual_sensors<auto_rotation_sensor>("Auto Rotation");
173 #ifdef ENABLE_ROTATION_VECTOR
174 create_virtual_sensors<rotation_vector_sensor>("Rotation Vector");
176 #ifdef ENABLE_GRAVITY
177 create_virtual_sensors<gravity_sensor>("Gravity");
179 #ifdef ENABLE_LINEAR_ACCEL
180 create_virtual_sensors<linear_accel_sensor>("Linear Accel");
182 #ifdef ENABLE_ORIENTATION
183 create_virtual_sensors<orientation_sensor>("Orientation");
187 template<typename _sensor>
188 void sensor_loader::create_physical_sensors(sensor_type_t type)
191 const sensor_info_t *info;
192 physical_sensor *sensor;
193 sensor_device *device;
195 sensor_device_map_t::iterator it;
197 for (it = m_devices.begin(); it != m_devices.end(); ++it) {
199 device = it->second.get();
201 if (type != UNKNOWN_SENSOR) {
202 if (type != (sensor_type_t)(info->type))
206 sensor = dynamic_cast<physical_sensor *>(create_sensor<_sensor>());
209 _E("Memory allocation failed[%s]", info->name);
213 sensor_type_t _type = (sensor_type_t)info->type;
214 index = (int32_t)m_sensors.count(_type);
216 sensor->set_id(((int64_t)_type << SENSOR_TYPE_SHIFT) | index);
217 sensor->set_sensor_info(info);
218 sensor->set_sensor_device(device);
220 std::shared_ptr<sensor_base> sensor_ptr(sensor);
221 m_sensors.insert(std::make_pair(_type, sensor_ptr));
223 _I("created [%s] sensor", sensor->get_name());
227 template <typename _sensor>
228 void sensor_loader::create_virtual_sensors(const char *name)
232 virtual_sensor *instance;
234 instance = dynamic_cast<virtual_sensor *>(create_sensor<_sensor>());
236 _E("Memory allocation failed[%s]", name);
240 if (!instance->init()) {
241 _E("Failed to init %s", name);
246 std::shared_ptr<sensor_base> sensor(instance);
247 type = sensor->get_type();
248 index = (int32_t)(m_sensors.count(type));
250 sensor->set_id((int64_t)type << SENSOR_TYPE_SHIFT | index);
252 m_sensors.insert(std::make_pair(type, sensor));
254 _I("created [%s] sensor", sensor->get_name());
257 template <typename _sensor>
258 void sensor_loader::create_external_sensors(const char *name)
262 external_sensor *instance;
264 instance = dynamic_cast<external_sensor *>(create_sensor<_sensor>());
266 _E("Memory allocation failed[%s]", name);
270 std::shared_ptr<sensor_base> sensor(instance);
271 type = sensor->get_type();
272 index = (int32_t)(m_sensors.count(type));
274 sensor->set_id((int64_t)type << SENSOR_TYPE_SHIFT | index);
276 m_sensors.insert(std::make_pair(type, sensor));
278 _I("created [%s] sensor", sensor->get_name());
281 template <typename _sensor>
282 sensor_base* sensor_loader::create_sensor(void)
284 sensor_base *instance = NULL;
287 instance = new _sensor;
288 } catch (std::exception &e) {
289 _E("Failed to create sensor, exception: %s", e.what());
292 _ERRNO(errno, _E, "Failed to create sensor");
299 void sensor_loader::show_sensor_info(void)
301 _I("========== Loaded sensor information ==========\n");
305 auto it = m_sensors.begin();
307 while (it != m_sensors.end()) {
308 sensor_base *sensor = it->second.get();
311 sensor->get_sensor_info(info);
312 _I("No:%d [%s]\n", ++index, sensor->get_name());
317 _I("===============================================\n");
320 bool sensor_loader::get_paths_from_dir(const string &dir_path, vector<string> &hal_paths)
323 struct dirent dir_entry;
324 struct dirent *result;
328 dir = opendir(dir_path.c_str());
331 _E("Failed to open dir: %s", dir_path.c_str());
336 error = readdir_r(dir, &dir_entry, &result);
344 name = string(dir_entry.d_name);
346 if (name == "." || name == "..")
349 hal_paths.push_back(dir_path + "/" + name);
356 sensor_base* sensor_loader::get_sensor(sensor_type_t type)
358 auto it = m_sensors.find(type);
360 if (it == m_sensors.end())
363 return it->second.get();
366 sensor_base* sensor_loader::get_sensor(sensor_id_t id)
368 vector<sensor_base *> sensors;
370 sensor_type_t type = static_cast<sensor_type_t>(id >> SENSOR_TYPE_SHIFT);
371 unsigned int index = (id & SENSOR_INDEX_MASK);
373 sensors = get_sensors(type);
375 if (index >= sensors.size())
378 return sensors[index];
381 vector<sensor_type_t> sensor_loader::get_sensor_types(void)
383 vector<sensor_type_t> sensor_types;
385 auto it = m_sensors.begin();
387 while (it != m_sensors.end()) {
388 sensor_types.push_back((sensor_type_t)(it->first));
389 it = m_sensors.upper_bound(it->first);
395 vector<sensor_base *> sensor_loader::get_sensors(sensor_type_t type)
397 vector<sensor_base *> sensor_list;
398 std::pair<sensor_map_t::iterator, sensor_map_t::iterator> ret;
400 if ((int)(type) == (int)SENSOR_DEVICE_ALL)
401 ret = std::make_pair(m_sensors.begin(), m_sensors.end());
403 ret = m_sensors.equal_range(type);
405 for (auto it = ret.first; it != ret.second; ++it)
406 sensor_list.push_back(it->second.get());
411 vector<sensor_base *> sensor_loader::get_virtual_sensors(void)
413 vector<sensor_base *> virtual_list;
416 for (auto it = m_sensors.begin(); it != m_sensors.end(); ++it) {
417 sensor = it->second.get();
419 if (!sensor || !sensor->is_virtual())
422 virtual_list.push_back(sensor);