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76 lines
1.7 KiB
Plaintext
76 lines
1.7 KiB
Plaintext
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "Hal.h"
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#include "nsITimer.h"
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#include "smslib.h"
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#define MEAN_GRAVITY 9.80665
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#define DEFAULT_SENSOR_POLL 100
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using namespace mozilla::hal;
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namespace mozilla {
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namespace hal_impl {
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static nsITimer* sUpdateTimer = nullptr;
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void UpdateHandler(nsITimer *aTimer, void *aClosure)
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{
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sms_acceleration accel;
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smsGetData(&accel);
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InfallibleTArray<float> values;
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values.AppendElement(accel.x * MEAN_GRAVITY);
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values.AppendElement(accel.y * MEAN_GRAVITY);
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values.AppendElement(accel.z * MEAN_GRAVITY);
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hal::SensorData sdata(hal::SENSOR_ACCELERATION,
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PR_Now(),
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values,
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hal::SENSOR_ACCURACY_UNKNOWN);
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hal::NotifySensorChange(sdata);
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}
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void
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EnableSensorNotifications(SensorType aSensor)
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{
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if (aSensor != SENSOR_ACCELERATION)
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return;
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if (sUpdateTimer)
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return;
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int result = smsStartup(nil, nil);
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if (result != SMS_SUCCESS) {
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return;
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}
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if (!smsLoadCalibration()) {
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return;
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}
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CallCreateInstance("@mozilla.org/timer;1", &sUpdateTimer);
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if (sUpdateTimer)
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sUpdateTimer->InitWithFuncCallback(UpdateHandler,
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NULL,
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DEFAULT_SENSOR_POLL,
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nsITimer::TYPE_REPEATING_SLACK);
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}
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void
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DisableSensorNotifications(SensorType aSensor)
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{
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if (aSensor != SENSOR_ACCELERATION)
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return;
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if (sUpdateTimer) {
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sUpdateTimer->Cancel();
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NS_RELEASE(sUpdateTimer);
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}
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smsShutdown();
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}
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} // hal_impl
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} // mozilla
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