diff options
Diffstat (limited to 'telephony/java/android/telephony/SignalStrength.java')
| -rw-r--r-- | telephony/java/android/telephony/SignalStrength.java | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/telephony/java/android/telephony/SignalStrength.java b/telephony/java/android/telephony/SignalStrength.java index 05e198f..1a4b574 100644 --- a/telephony/java/android/telephony/SignalStrength.java +++ b/telephony/java/android/telephony/SignalStrength.java @@ -47,6 +47,9 @@ public class SignalStrength implements Parcelable { "none", "poor", "moderate", "good", "great" }; + /** @hide */ + public static final int INVALID_SNR = 0x7FFFFFFF; + private int mGsmSignalStrength; // Valid values are (0-31, 99) as defined in TS 27.007 8.5 private int mGsmBitErrorRate; // bit error rate (0-7, 99) as defined in TS 27.007 8.5 private int mCdmaDbm; // This value is the RSSI value @@ -96,7 +99,7 @@ public class SignalStrength implements Parcelable { mLteSignalStrength = -1; mLteRsrp = -1; mLteRsrq = -1; - mLteRssnr = -1; + mLteRssnr = INVALID_SNR; mLteCqi = -1; isGsm = true; } @@ -136,7 +139,8 @@ public class SignalStrength implements Parcelable { int evdoDbm, int evdoEcio, int evdoSnr, boolean gsm) { this(gsmSignalStrength, gsmBitErrorRate, cdmaDbm, cdmaEcio, - evdoDbm, evdoEcio, evdoSnr, -1, -1, -1, -1, -1, gsm); + evdoDbm, evdoEcio, evdoSnr, -1, -1, + -1, INVALID_SNR, -1, gsm); } /** @@ -292,7 +296,7 @@ public class SignalStrength implements Parcelable { if ((mLteSignalStrength == -1) && (mLteRsrp == -1) && (mLteRsrq == -1) - && (mLteRssnr == -1) + && (mLteRssnr == INVALID_SNR) && (mLteCqi == -1)) { level = getGsmLevel(); } else { @@ -327,7 +331,7 @@ public class SignalStrength implements Parcelable { if ((mLteSignalStrength == -1) && (mLteRsrp == -1) && (mLteRsrq == -1) - && (mLteRssnr == -1) + && (mLteRssnr == INVALID_SNR) && (mLteCqi == -1)) { asuLevel = getGsmAsuLevel(); } else { @@ -363,7 +367,7 @@ public class SignalStrength implements Parcelable { if ((mLteSignalStrength == -1) && (mLteRsrp == -1) && (mLteRsrq == -1) - && (mLteRssnr == -1) + && (mLteRssnr == INVALID_SNR) && (mLteCqi == -1)) { dBm = getGsmDbm(); } else { @@ -566,6 +570,7 @@ public class SignalStrength implements Parcelable { */ public int getLteLevel() { int levelLteRsrp = 0; + int levelLteRssnr = 0; if (mLteRsrp == -1) levelLteRsrp = 0; else if (mLteRsrp >= -95) levelLteRsrp = SIGNAL_STRENGTH_GREAT; @@ -573,8 +578,23 @@ public class SignalStrength implements Parcelable { else if (mLteRsrp >= -115) levelLteRsrp = SIGNAL_STRENGTH_MODERATE; else levelLteRsrp = SIGNAL_STRENGTH_POOR; - if (DBG) log("Lte level: "+levelLteRsrp); - return levelLteRsrp; + if (mLteRssnr == INVALID_SNR) levelLteRssnr = 0; + else if (mLteRssnr >= 45) levelLteRssnr = SIGNAL_STRENGTH_GREAT; + else if (mLteRssnr >= 10) levelLteRssnr = SIGNAL_STRENGTH_GOOD; + else if (mLteRssnr >= -30) levelLteRssnr = SIGNAL_STRENGTH_MODERATE; + else levelLteRssnr = SIGNAL_STRENGTH_POOR; + + int level; + if (mLteRsrp == -1) + level = levelLteRssnr; + else if (mLteRssnr == INVALID_SNR) + level = levelLteRsrp; + else + level = (levelLteRssnr < levelLteRsrp) ? levelLteRssnr : levelLteRsrp; + + if (DBG) log("Lte rsrp level: "+levelLteRsrp + + " snr level: " + levelLteRssnr + " level: " + level); + return level; } /** |