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authorMarty Fouts <mfouts@sta.samsung.com>2011-06-27 22:40:40 -0700
committerArve Hjønnevåg <arve@android.com>2011-06-29 18:53:02 -0700
commitfd62ef4c2d6e912b0a9a5354e82560f515b0c20c (patch)
tree2490fbde5fa0903c22b853415b964c7d3b0f9729 /libsensors/ProximitySensor.cpp
parenta4116db3002715e73ba8d48fbefabd15b91c92a2 (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.cpp70
1 files changed, 70 insertions, 0 deletions
diff --git a/libsensors/ProximitySensor.cpp b/libsensors/ProximitySensor.cpp
new file mode 100644
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+++ b/libsensors/ProximitySensor.cpp
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+/*
+ * 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;
+}