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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /hal/cocoa/CocoaSensor.mm | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'hal/cocoa/CocoaSensor.mm')
-rw-r--r-- | hal/cocoa/CocoaSensor.mm | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/hal/cocoa/CocoaSensor.mm b/hal/cocoa/CocoaSensor.mm new file mode 100644 index 0000000000..ecc39272dc --- /dev/null +++ b/hal/cocoa/CocoaSensor.mm @@ -0,0 +1,140 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ +#include "Hal.h" +#include "nsITimer.h" +#include "smslib.h" +#include "nsComponentManagerUtils.h" + +#include <mach/mach.h> +#include <cmath> +#import <IOKit/IOKitLib.h> + +#define MEAN_GRAVITY 9.80665 +#define DEFAULT_SENSOR_POLL 100 +using namespace mozilla::hal; +namespace mozilla { +namespace hal_impl { +static nsITimer* sUpdateTimer = nullptr; +static bool sActiveSensors[NUM_SENSOR_TYPE]; +static io_connect_t sDataPort = IO_OBJECT_NULL; +static uint64_t sLastMean = -1; +static float LMUvalueToLux(uint64_t aValue) { + // Conversion formula from regression. See Bug 793728. + // -3*(10^-27)*x^4 + 2.6*(10^-19)*x^3 + -3.4*(10^-12)*x^2 + 3.9*(10^-5)*x - + // 0.19 + long double powerC4 = 1 / pow((long double)10, 27); + long double powerC3 = 1 / pow((long double)10, 19); + long double powerC2 = 1 / pow((long double)10, 12); + long double powerC1 = 1 / pow((long double)10, 5); + + long double term4 = -3.0 * powerC4 * pow(aValue, 4); + long double term3 = 2.6 * powerC3 * pow(aValue, 3); + long double term2 = -3.4 * powerC2 * pow(aValue, 2); + long double term1 = 3.9 * powerC1 * aValue; + + float lux = ceil(static_cast<float>(term4 + term3 + term2 + term1 - 0.19)); + return lux > 0 ? lux : 0; +} +void UpdateHandler(nsITimer* aTimer, void* aClosure) { + for (int i = 0; i < NUM_SENSOR_TYPE; i++) { + if (!sActiveSensors[i]) { + continue; + } + SensorType sensor = static_cast<SensorType>(i); + nsTArray<float> values; + if (sensor == SENSOR_ACCELERATION) { + sms_acceleration accel; + smsGetData(&accel); + + values.AppendElement(accel.x * MEAN_GRAVITY); + values.AppendElement(accel.y * MEAN_GRAVITY); + values.AppendElement(accel.z * MEAN_GRAVITY); + } else if (sensor == SENSOR_LIGHT && sDataPort != IO_OBJECT_NULL) { + kern_return_t kr; + uint32_t outputs = 2; + uint64_t lightLMU[outputs]; + + kr = IOConnectCallMethod(sDataPort, 0, nil, 0, nil, 0, lightLMU, &outputs, + nil, 0); + if (kr == KERN_SUCCESS) { + uint64_t mean = (lightLMU[0] + lightLMU[1]) / 2; + if (mean == sLastMean) { + continue; + } + sLastMean = mean; + values.AppendElement(LMUvalueToLux(mean)); + } else if (kr == kIOReturnBusy) { + continue; + } + } + + hal::SensorData sdata(sensor, PR_Now(), values); + hal::NotifySensorChange(sdata); + } +} +void EnableSensorNotifications(SensorType aSensor) { + if (aSensor == SENSOR_ACCELERATION) { + int result = smsStartup(nil, nil); + + if (result != SMS_SUCCESS) { + return; + } + + if (!smsLoadCalibration()) { + return; + } + } else if (aSensor == SENSOR_LIGHT) { + io_service_t serviceObject; + serviceObject = IOServiceGetMatchingService( + kIOMasterPortDefault, IOServiceMatching("AppleLMUController")); + if (!serviceObject) { + return; + } + kern_return_t kr; + kr = IOServiceOpen(serviceObject, mach_task_self(), 0, &sDataPort); + IOObjectRelease(serviceObject); + if (kr != KERN_SUCCESS) { + return; + } + } else { + NS_WARNING("EnableSensorNotifications called on an unknown sensor type"); + return; + } + sActiveSensors[aSensor] = true; + + if (!sUpdateTimer) { + CallCreateInstance("@mozilla.org/timer;1", &sUpdateTimer); + if (sUpdateTimer) { + sUpdateTimer->InitWithNamedFuncCallback( + UpdateHandler, nullptr, DEFAULT_SENSOR_POLL, + nsITimer::TYPE_REPEATING_SLACK, "hal_impl::UpdateHandler"); + } + } +} +void DisableSensorNotifications(SensorType aSensor) { + if (!sActiveSensors[aSensor] || + (aSensor != SENSOR_ACCELERATION && aSensor != SENSOR_LIGHT)) { + return; + } + + sActiveSensors[aSensor] = false; + + if (aSensor == SENSOR_ACCELERATION) { + smsShutdown(); + } else if (aSensor == SENSOR_LIGHT) { + IOServiceClose(sDataPort); + } + // If all sensors are disabled, cancel the update timer. + if (sUpdateTimer) { + for (int i = 0; i < NUM_SENSOR_TYPE; i++) { + if (sActiveSensors[i]) { + return; + } + } + sUpdateTimer->Cancel(); + NS_RELEASE(sUpdateTimer); + } +} +} // namespace hal_impl +} // namespace mozilla |