Update HAL comment of AGC
Bug: 179157665
Test: doc update only
Change-Id: I9395a68d3154e8b4e47fd2fb6b0d8f5f33e48805
diff --git a/current.txt b/current.txt
index bf6829a..fb9b056 100644
--- a/current.txt
+++ b/current.txt
@@ -769,7 +769,7 @@
# ABI preserving changes to HALs during Android S
e042522daa4b5f7fd4a0a19bcdadb93c79a1b04c09ef2c9813a3a8941032f3f5 android.hardware.contexthub@1.0::IContexthub
c2f64133b83ede65c9939ef97ab5bd867b73faf3dba0e7e69f77c3c43d9e487e android.hardware.contexthub@1.0::IContexthubCallback
-1ca372cd67d197df099e87616a613ba6ede6552638a603e18f86c8834302c3d1 android.hardware.gnss@1.0::IGnssMeasurementCallback
+bda492ec4021d13869de72bd6f8c15c5837b78d6136b8d538efec5320573a5ec android.hardware.gnss@1.0::IGnssMeasurementCallback
6a271e493907e8ba20912e42771bd0d99ae45431a851d5675ef9496d02510a34 android.hardware.gnss@1.1::IGnssMeasurementCallback
2c331a9605f3a08d9c1e0a36169ca57758bc43c11a78ef3f3730509885e52c15 android.hardware.graphics.composer@2.4::IComposerClient
3da3ce039247872d95c6bd48621dbfdfa1c2d2a91a90f257862f87ee2bc46300 android.hardware.health@2.1::types
diff --git a/gnss/1.0/IGnssMeasurementCallback.hal b/gnss/1.0/IGnssMeasurementCallback.hal
index d219af0..603680d 100644
--- a/gnss/1.0/IGnssMeasurementCallback.hal
+++ b/gnss/1.0/IGnssMeasurementCallback.hal
@@ -644,22 +644,19 @@
*/
double snrDb;
- /**
- * Automatic gain control (AGC) level. AGC acts as a variable gain
- * amplifier adjusting the power of the incoming signal. The AGC level
- * may be used to indicate potential interference. When AGC is at a
- * nominal level, this value must be set as 0. Higher gain (and/or lower
- * input power) must be output as a positive number. Hence in cases of
- * strong jamming, in the band of this signal, this value must go more
- * negative.
- *
- * Note: Different hardware designs (e.g. antenna, pre-amplification, or
- * other RF HW components) may also affect the typical output of of this
- * value on any given hardware design in an open sky test - the
- * important aspect of this output is that changes in this value are
- * indicative of changes on input signal power in the frequency band for
- * this measurement.
- */
+
+ /**
+ * Automatic gain control (AGC) level. AGC acts as a variable gain amplifier adjusting the power
+ * of the incoming signal. The AGC level may be used to indicate potential interference. Higher
+ * gain (and/or lower input power) must be output as a positive number. Hence in cases of strong
+ * jamming, in the band of this signal, this value must go more negative. This value must be
+ * consistent given the same level of the incoming signal power.
+ *
+ * Note: Different hardware designs (e.g. antenna, pre-amplification, or other RF HW components)
+ * may also affect the typical output of this value on any given hardware design in an open sky
+ * test - the important aspect of this output is that changes in this value are indicative of
+ * changes on input signal power in the frequency band for this measurement.
+ */
double agcLevelDb;
};
diff --git a/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl b/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl
index 2c56a41..4468b63 100644
--- a/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl
+++ b/gnss/aidl/android/hardware/gnss/GnssMeasurement.aidl
@@ -547,20 +547,16 @@
double snrDb;
/**
- * Automatic gain control (AGC) level. AGC acts as a variable gain
- * amplifier adjusting the power of the incoming signal. The AGC level
- * may be used to indicate potential interference. When AGC is at a
- * nominal level, this value must be set as 0. Higher gain (and/or lower
- * input power) must be output as a positive number. Hence in cases of
- * strong jamming, in the band of this signal, this value must go more
- * negative.
+ * Automatic gain control (AGC) level. AGC acts as a variable gain amplifier adjusting the power
+ * of the incoming signal. The AGC level may be used to indicate potential interference. Higher
+ * gain (and/or lower input power) must be output as a positive number. Hence in cases of strong
+ * jamming, in the band of this signal, this value must go more negative. This value must be
+ * consistent given the same level of the incoming signal power.
*
- * Note: Different hardware designs (e.g. antenna, pre-amplification, or
- * other RF HW components) may also affect the typical output of this
- * value on any given hardware design in an open sky test - the
- * important aspect of this output is that changes in this value are
- * indicative of changes on input signal power in the frequency band for
- * this measurement.
+ * Note: Different hardware designs (e.g. antenna, pre-amplification, or other RF HW components)
+ * may also affect the typical output of this value on any given hardware design in an open sky
+ * test - the important aspect of this output is that changes in this value are indicative of
+ * changes on input signal power in the frequency band for this measurement.
*/
double agcLevelDb;
