2 * ultraviolet_sensor_hal
4 * Copyright (c) 2014 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 <linux/input.h>
23 #include <csensor_config.h>
24 #include <ultraviolet_sensor_hal.h>
25 #include <sys/ioctl.h>
31 #define SENSOR_TYPE_ULTRAVIOLET "ULTRAVIOLET"
32 #define ELEMENT_NAME "NAME"
33 #define ELEMENT_VENDOR "VENDOR"
34 #define ELEMENT_RAW_DATA_UNIT "RAW_DATA_UNIT"
35 #define ELEMENT_MIN_RANGE "MIN_RANGE"
36 #define ELEMENT_MAX_RANGE "MAX_RANGE"
37 #define ATTR_VALUE "value"
41 ultraviolet_sensor_hal::ultraviolet_sensor_hal()
42 : m_polling_interval(POLL_1HZ_MS)
47 const string sensorhub_interval_node_name = "uv_poll_delay";
48 csensor_config &config = csensor_config::get_instance();
50 node_info_query query;
53 if (!find_model_id(SENSOR_TYPE_ULTRAVIOLET, m_model_id)) {
54 ERR("Failed to find model id");
59 query.sensorhub_controlled = m_sensorhub_controlled = is_sensorhub_controlled(sensorhub_interval_node_name);
60 query.sensor_type = SENSOR_TYPE_ULTRAVIOLET;
61 query.key = "uv_sensor";
62 query.iio_enable_node_name = "uv_enable";
63 query.sensorhub_interval_node_name = sensorhub_interval_node_name;
65 if (!get_node_info(query, info)) {
66 ERR("Failed to get node info");
72 m_data_node = info.data_node_path;
73 m_enable_node = info.enable_node_path;
74 m_interval_node = info.interval_node_path;
76 if (!config.get(SENSOR_TYPE_ULTRAVIOLET, m_model_id, ELEMENT_VENDOR, m_vendor)) {
77 ERR("[VENDOR] is empty\n");
81 INFO("m_vendor = %s", m_vendor.c_str());
83 if (!config.get(SENSOR_TYPE_ULTRAVIOLET, m_model_id, ELEMENT_NAME, m_chip_name)) {
84 ERR("[NAME] is empty\n");
88 INFO("m_chip_name = %s\n",m_chip_name.c_str());
92 if (!config.get(SENSOR_TYPE_ULTRAVIOLET, m_model_id, ELEMENT_MIN_RANGE, min_range)) {
93 ERR("[MIN_RANGE] is empty\n");
97 m_min_range = (float)min_range;
98 INFO("m_min_range = %f\n",m_min_range);
102 if (!config.get(SENSOR_TYPE_ULTRAVIOLET, m_model_id, ELEMENT_MAX_RANGE, max_range)) {
103 ERR("[MAX_RANGE] is empty\n");
107 m_max_range = (float)max_range;
108 INFO("m_max_range = %f\n",m_max_range);
110 double raw_data_unit;
112 if (!config.get(SENSOR_TYPE_ULTRAVIOLET, m_model_id, ELEMENT_RAW_DATA_UNIT, raw_data_unit)) {
113 ERR("[RAW_DATA_UNIT] is empty\n");
117 m_raw_data_unit = (float)(raw_data_unit);
119 if ((m_node_handle = open(m_data_node.c_str(),O_RDWR)) < 0) {
120 ERR("Failed to open handle(%d)", m_node_handle);
124 int clockId = CLOCK_MONOTONIC;
125 if (ioctl(m_node_handle, EVIOCSCLOCKID, &clockId) != 0)
126 ERR("Fail to set monotonic timestamp for %s", m_data_node.c_str());
128 INFO("m_raw_data_unit = %f\n", m_raw_data_unit);
129 INFO("ultraviolet_sensor_hal is created!\n");
132 ultraviolet_sensor_hal::~ultraviolet_sensor_hal()
134 close(m_node_handle);
137 INFO("ultraviolet_sensor_hal is destroyed!\n");
140 string ultraviolet_sensor_hal::get_model_id(void)
146 sensor_hal_type_t ultraviolet_sensor_hal::get_type(void)
148 return SENSOR_HAL_TYPE_ULTRAVIOLET;
151 bool ultraviolet_sensor_hal::enable(void)
155 set_enable_node(m_enable_node, m_sensorhub_controlled, true, SENSORHUB_UV_SENSOR);
156 set_interval(m_polling_interval);
159 INFO("ultraviolet sensor real starting");
163 bool ultraviolet_sensor_hal::disable(void)
167 set_enable_node(m_enable_node, m_sensorhub_controlled, false, SENSORHUB_UV_SENSOR);
169 INFO("ultraviolet sensor real stopping");
173 bool ultraviolet_sensor_hal::set_interval(unsigned long val)
175 unsigned long long polling_interval_ns;
179 polling_interval_ns = ((unsigned long long)(val) * 1000llu * 1000llu);
181 if (!set_node_value(m_interval_node, polling_interval_ns)) {
182 ERR("Failed to set polling resource: %s\n", m_interval_node.c_str());
186 INFO("Interval is changed from %dms to %dms]", m_polling_interval, val);
187 m_polling_interval = val;
191 bool ultraviolet_sensor_hal::update_value(void)
193 int ultraviolet_raw = -1;
194 bool ultraviolet_sign = false;
195 bool ultraviolet = false;
196 int read_input_cnt = 0;
197 const int INPUT_MAX_BEFORE_SYN = 10;
198 unsigned long long fired_time = 0;
201 struct input_event ultraviolet_event;
202 DBG("ultraviolet event detection!");
204 while ((syn == false) && (read_input_cnt < INPUT_MAX_BEFORE_SYN)) {
205 int len = read(m_node_handle, &ultraviolet_event, sizeof(ultraviolet_event));
206 if (len != sizeof(ultraviolet_event)) {
207 ERR("ultraviolet file read fail, read_len = %d\n",len);
213 if (ultraviolet_event.type == EV_REL && ultraviolet_event.code == REL_X) {
214 ultraviolet_raw = (int)ultraviolet_event.value;
216 } else if (ultraviolet_event.type == EV_REL && ultraviolet_event.code == REL_Y) {
217 ultraviolet_sign = ((int)ultraviolet_event.value < 0) ? false : true;
218 } else if (ultraviolet_event.type == EV_SYN) {
220 fired_time = sensor_hal_base::get_timestamp(&ultraviolet_event.time);
222 ERR("ultraviolet event[type = %d, code = %d] is unknown.", ultraviolet_event.type, ultraviolet_event.code);
227 AUTOLOCK(m_value_mutex);
229 if (ultraviolet && ultraviolet_sign)
230 m_ultraviolet = ultraviolet_raw - BIAS;
234 m_fired_time = fired_time;
236 DBG("m_ultraviolet = %d, time = %lluus", m_ultraviolet, m_fired_time);
241 bool ultraviolet_sensor_hal::is_data_ready(void)
244 ret = update_value();
248 int ultraviolet_sensor_hal::get_sensor_data(sensor_data_t &data)
250 AUTOLOCK(m_value_mutex);
251 data.accuracy = SENSOR_ACCURACY_GOOD;
252 data.timestamp = m_fired_time;
253 data.value_count = 1;
254 data.values[0] = (float) m_ultraviolet;
259 bool ultraviolet_sensor_hal::get_properties(sensor_properties_s &properties)
261 properties.name = m_chip_name;
262 properties.vendor = m_vendor;
263 properties.min_range = m_min_range;
264 properties.max_range = m_max_range;
265 properties.min_interval = 1;
266 properties.resolution = m_raw_data_unit;
267 properties.fifo_count = 0;
268 properties.max_batch_count = 0;