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Update some comments for tuner AIDL HAL.

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*) Clarify the meaning and unit of FrontendStatus.
*) Add comment for STC ready support.
*) Support for control signal (e.g. TMCC) change monitoring

Bug: 183634950
Bug: 202247846
Bug: 183630794
Test: Make
Change-Id: I3c48993c354e865b0edfe56adbd34c7fce120efc
This commit is contained in:
Hongguang
2021-12-13 17:06:34 -08:00
committed by Hongguang Chen
parent a97bfe621b
commit 5e86eed7df
3 changed files with 33 additions and 2 deletions
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3
tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl
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@@ -24,7 +24,8 @@ package android.hardware.tv.tuner;
@Backing(type="byte")
enum DemuxFilterStatus {
/**
* The data in the filter buffer is ready to be read.
* The data in the filter buffer is ready to be read. It can also be used to know the STC
* (System Time Clock) ready status if it's PCR filter.
*/
DATA_READY = 1 << 0,

4
tv/tuner/aidl/android/hardware/tv/tuner/FrontendEventType.aidl
View File

@@ -24,7 +24,9 @@ package android.hardware.tv.tuner;
@Backing(type="int")
enum FrontendEventType {
/**
* The frontend has locked to the signal specified by the tune method.
* The frontend has locked to the signal specified by the tune method. It can also be notified
* after signal is locked if the signal attributes transmission parameter of the signal is
* changed (e.g., Modulation).
*/
LOCKED,

28
tv/tuner/aidl/android/hardware/tv/tuner/FrontendStatus.aidl
View File

@@ -91,11 +91,19 @@ union FrontendStatus {
/**
* AGC value is normalized from 0 to 255.
* Larger AGC values indicate it is applying more gain.
*/
int agc;
boolean isLnaOn;
/**
* Layer Error status.
*
* The order of the vectors is in ascending order of the required CNR (Contrast-to-noise ratio).
* The most robust layer is the first. For example, in ISDB-T, isLayerError[0] is the
* information of layer A. isLayerError[1] is the information of layer B.
*/
boolean[] isLayerError;
/**
@@ -119,16 +127,28 @@ union FrontendStatus {
/**
* Modulation status.
*
* The order of the vectors is in ascending order of the required CNR (Contrast-to-noise ratio).
* The most robust layer is the first. For example, in ISDB-T, modulations[0] is the information
* of layer A. modulations[1] is the information of layer B.
*/
FrontendModulation[] modulations;
/**
* Bit error ratio status.
*
* The order of the vectors is in ascending order of the required CNR (Contrast-to-noise ratio).
* The most robust layer is the first. For example, in ISDB-T, bers[0] is the information of
* layer A. bers[1] is the information of layer B.
*/
int[] bers;
/**
* Code rate status.
*
* The order of the vectors is in ascending order of the required CN. The most robust layer is
* the first. For example, in ISDB-T, codeRates[0] is the information of layer A. codeRates[1]
* is the information of layer B.
*/
FrontendInnerFec[] codeRates;
@@ -160,11 +180,19 @@ union FrontendStatus {
/**
* Frontend Interleaving Modes.
*
* The order of the vectors is in ascending order of the required CNR (Contrast-to-noise ratio).
* The most robust layer is the first. For example, in ISDB-T, interleaving[0] is the
* information of layer A. interleaving[1] is the information of layer B.
*/
FrontendInterleaveMode[] interleaving;
/**
* Segments in ISDB-T Specification of all the channels.
*
* The order of the vectors is in ascending order of the required CNR (Contrast-to-noise ratio).
* The most robust layer is the first. For example, in ISDB-T, isdbtSegment[0] is the
* information of layer A. isdbtSegment[1] is the information of layer B.
*/
int[] isdbtSegment;