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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file is based on http://osxbook.com/book/bonus/chapter10/light/ | 5 // This file is based on http://osxbook.com/book/bonus/chapter10/light/ |
6 | 6 |
7 #include "content/browser/device_sensors/ambient_light_mac.h" | 7 #include "device/generic_sensor/ambient_light_mac.h" |
8 | 8 |
9 #include <utility> | 9 #include <utility> |
10 | 10 |
11 #include "base/mac/scoped_cftyperef.h" | 11 #include "base/mac/scoped_cftyperef.h" |
12 #include "base/mac/scoped_ioobject.h" | 12 #include "base/mac/scoped_ioobject.h" |
13 | 13 |
14 namespace content { | 14 namespace device { |
15 | 15 |
16 namespace { | 16 namespace { |
17 enum LmuFunctionIndex { | 17 enum LmuFunctionIndex { |
18 kGetSensorReadingID = 0, // getSensorReading(int *, int *) | 18 kGetSensorReadingID = 0, // getSensorReading(int *, int *) |
19 kGetLEDBrightnessID = 1, // getLEDBrightness(int, int *) | 19 kGetLEDBrightnessID = 1, // getLEDBrightness(int, int *) |
20 kSetLEDBrightnessID = 2, // setLEDBrightness(int, int, int *) | 20 kSetLEDBrightnessID = 2, // setLEDBrightness(int, int, int *) |
21 kSetLEDFadeID = 3, // setLEDFade(int, int, int, int *) | 21 kSetLEDFadeID = 3, // setLEDFade(int, int, int, int *) |
22 }; | 22 }; |
23 } // namespace | 23 } // namespace |
24 | 24 |
25 // static | 25 // static |
26 std::unique_ptr<AmbientLightSensor> AmbientLightSensor::Create() { | 26 std::unique_ptr<AmbientLightSensor> AmbientLightSensor::Create() { |
27 std::unique_ptr<AmbientLightSensor> light_sensor(new AmbientLightSensor); | 27 std::unique_ptr<AmbientLightSensor> light_sensor(new AmbientLightSensor); |
28 return light_sensor->Init() ? std::move(light_sensor) : nullptr; | 28 return light_sensor->Init() ? std::move(light_sensor) : nullptr; |
29 } | 29 } |
30 | 30 |
31 AmbientLightSensor::~AmbientLightSensor() { | 31 AmbientLightSensor::~AmbientLightSensor() { |
32 if (!io_connection_) | 32 if (!io_connection_) |
33 IOServiceClose(io_connection_); | 33 IOServiceClose(io_connection_); |
34 } | 34 } |
35 | 35 |
36 AmbientLightSensor::AmbientLightSensor() : io_connection_(IO_OBJECT_NULL) { | 36 AmbientLightSensor::AmbientLightSensor() : io_connection_(IO_OBJECT_NULL) {} |
37 } | |
38 | 37 |
39 bool AmbientLightSensor::Init() { | 38 bool AmbientLightSensor::Init() { |
40 // Tested and verified by riju that the following call works on | 39 // Tested and verified by riju that the following call works on |
41 // MacBookPro9,1 : Macbook Pro 15" (Mid 2012 model) | 40 // MacBookPro9,1 : Macbook Pro 15" (Mid 2012 model) |
42 // MacBookPro10,1 : Macbook Pro 15" (Retina Display, Early 2013 model). | 41 // MacBookPro10,1 : Macbook Pro 15" (Retina Display, Early 2013 model). |
43 // MacBookPro10,2 : Macbook Pro 13" (Retina Display, Early 2013 model). | 42 // MacBookPro10,2 : Macbook Pro 13" (Retina Display, Early 2013 model). |
44 // MacBookAir5,2 : Macbook Air 13" (Mid 2012 model) (by François Beaufort). | 43 // MacBookAir5,2 : Macbook Air 13" (Mid 2012 model) (by François Beaufort). |
45 // MacBookAir6,2 : Macbook Air 13" (Mid 2013 model). | 44 // MacBookAir6,2 : Macbook Air 13" (Mid 2013 model). |
46 // Testing plans : please download the code and follow the comments :- | 45 // Testing plans : please download the code and follow the comments :- |
47 // https://gist.github.com/riju/74af8c81a665e412d122/ | 46 // https://gist.github.com/riju/74af8c81a665e412d122/ |
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70 | 69 |
71 bool AmbientLightSensor::ReadSensorValue(uint64_t lux_values[2]) { | 70 bool AmbientLightSensor::ReadSensorValue(uint64_t lux_values[2]) { |
72 uint32_t scalar_output_count = 2; | 71 uint32_t scalar_output_count = 2; |
73 kern_return_t kr = IOConnectCallMethod( | 72 kern_return_t kr = IOConnectCallMethod( |
74 io_connection_, LmuFunctionIndex::kGetSensorReadingID, nullptr, 0, | 73 io_connection_, LmuFunctionIndex::kGetSensorReadingID, nullptr, 0, |
75 nullptr, 0, lux_values, &scalar_output_count, nullptr, 0); | 74 nullptr, 0, lux_values, &scalar_output_count, nullptr, 0); |
76 | 75 |
77 return kr == KERN_SUCCESS; | 76 return kr == KERN_SUCCESS; |
78 } | 77 } |
79 | 78 |
80 } // namespace content | 79 } // namespace device |
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