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Updates EventPayload documentation for (Geomag)-RV

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The former HAL documentation incorrectly documented (Geomag)-RV
sensor data as Vec4, although an accuracy field is expected according
to the Android sensor docs. Former default HAL implementation has set
the accuracy value to zero, preventing apps from getting this value.

This change guides OEMs to use the Vec4 + accuracy when converting
(Geomag)-RV sensor events. The default HAL implementation passes
this extra data now (ag/5224072), but clients of the former
implementation will still get the data it needs if assuming
the Vec4 sensor data format.

Bug: 116874058
Test: Compile only
Change-Id: I6a5c8a48dd372c3d4682ed5329f7f87862746cb9
This commit is contained in:
Arthur Ishiguro
2018-10-15 15:33:01 -07:00
parent 8ad3e78d27
commit d3881ea7fa
2 changed files with 10 additions and 3 deletions
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1
current.txt
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@@ -394,5 +394,6 @@ e22e8135d061d0e9c4c1a70c25c19fdba10f4d3cda9795ef25b6392fc520317c android.hardwar
1d4a5776614c08b5d794a5ec5ab04697260cbd4b3441d5935cd53ee71d19da02 android.hardware.radio@1.0::IRadioResponse
271187e261b30c01a33011aea257c07a2d2f05b72943ebee89e973e997849973 android.hardware.radio@1.0::types
1d19720d4fd38b1095f0f555a4bd92b3b12c9b1d0f560b0e9a474cd6dcc20db6 android.hardware.radio@1.2::IRadio
e78cf871f9fd1c072874e481e06e18e2681763cf2aa38c1fd777d53bab4eb69b android.hardware.sensors@1.0::types
1722ad002317b1fae1400de709e90f442d94ef22864e05f7a12af48c32e8edc8 android.hardware.usb@1.1::types
29c8da7a13c40d488f569c812441d5754ee45bdcdb8ce6564f524b708d10a057 android.hardware.vibrator@1.1::types

12
sensors/1.0/types.hal
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@@ -1157,8 +1157,7 @@ union EventPayload {
Vec3 vec3;
/**
* SensorType::ROTATION_VECTOR, SensorType::GAME_ROTATION_VECTOR,
* SensorType::GEOMAGNETIC_ROTATION_VECTOR
* SensorType::GAME_ROTATION_VECTOR
*/
Vec4 vec4;
@@ -1200,7 +1199,14 @@ union EventPayload {
/** SensorType::ADDITIONAL_INFO */
AdditionalInfo additional;
/** undefined/custom sensor type >= SensorType::DEVICE_PRIVATE_BASE */
/**
* The following sensors should use the data field:
* - Undefined/custom sensor type >= SensorType::DEVICE_PRIVATE_BASE
* - SensorType::ROTATION_VECTOR, SensorType::GEOMAGNETIC_ROTATION_VECTOR:
* - These are Vec4 types with an additional float accuracy field,
* where data[4] is the estimated heading accuracy in radians
* (-1 if unavailable, and invalid if not in the range (0, 2 * pi]).
*/
float[16] data;
};