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author | Marty Fouts <mfouts@sta.samsung.com> | 2011-06-27 22:40:40 -0700 |
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committer | Arve Hjønnevåg <arve@android.com> | 2011-06-29 18:53:02 -0700 |
commit | cb410ba6658ed29c7ad59cc789ac95d95e912e0a (patch) | |
tree | ad9b8628e4123b97d4c2f5ab5f4a13428b17cfd4 /libsensors/ProximitySensor.cpp | |
parent | 916da294eb330d2c975a17d1524914c62cf4d650 (diff) | |
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tuna: sensors: add light, proximity, pressure sensors
NOTE:
- light sensor ADC values need to be calibrated.
Change-Id: Iba75dc62a922bbcd0d1e273566f9089c4da450fb
Signed-off-by: Marty Fouts <mfouts@sta.samsung.com>
Diffstat (limited to 'libsensors/ProximitySensor.cpp')
-rw-r--r-- | libsensors/ProximitySensor.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/libsensors/ProximitySensor.cpp b/libsensors/ProximitySensor.cpp new file mode 100644 index 0000000..4e1ec9d --- /dev/null +++ b/libsensors/ProximitySensor.cpp @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2011 Samsung + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <fcntl.h> +#include <errno.h> +#include <math.h> +#include <poll.h> +#include <unistd.h> +#include <dirent.h> +#include <sys/select.h> +#include <pthread.h> + +#include <cutils/log.h> + +#include "ProximitySensor.h" + +/*****************************************************************************/ + +ProximitySensor::ProximitySensor() + : SamsungSensorBase(NULL, "proximity", ABS_DISTANCE) +{ + mPendingEvent.sensor = ID_P; + mPendingEvent.type = SENSOR_TYPE_PROXIMITY; +} + +int ProximitySensor::setDelay(int32_t handle, int64_t ns) +{ + return -1; +} + +float ProximitySensor::indexToValue(size_t index) const +{ + return index * PROXIMITY_THRESHOLD_GP2A; +} + +bool ProximitySensor::hasPendingEvents() const { + return mHasPendingEvent; +} + +int ProximitySensor::handleEnable(int en) { + if (!en) + return 0; + + struct input_absinfo absinfo; + if (!ioctl(data_fd, EVIOCGABS(ABS_DISTANCE), &absinfo)) { + mHasPendingEvent = true; + mPendingEvent.distance = indexToValue(absinfo.value); + return 0; + } else { + return -1; + } +} + +bool ProximitySensor::handleEvent(input_event const *event) { + mPendingEvent.distance = indexToValue(event->value); + return true; +} |