Charging speed based on voltage
Also takes into account the voltage
at which we charge to make speeds
at different voltages comparable.
Bug: 25229483
Change-Id: I62a192932a013036585cd9fc870808debceac0d3
diff --git a/packages/Keyguard/res/values/config.xml b/packages/Keyguard/res/values/config.xml
index b398ab2..bde6ed5 100644
--- a/packages/Keyguard/res/values/config.xml
+++ b/packages/Keyguard/res/values/config.xml
@@ -23,9 +23,9 @@
<!-- Allow the menu hard key to be disabled in LockScreen on some devices [DO NOT TRANSLATE] -->
<bool name="config_disableMenuKeyInLockScreen">false</bool>
- <!-- Threshold in micro amperes below which a charger is rated as "slow" -->
- <integer name="config_chargingSlowlyThreshold">1000000</integer>
+ <!-- Threshold in micro watts below which a charger is rated as "slow"; 1A @ 5V -->
+ <integer name="config_chargingSlowlyThreshold">5000000</integer>
- <!-- Threshold in micro amperes above which a charger is rated as "fast" -->
- <integer name="config_chargingFastThreshold">1500000</integer>
+ <!-- Threshold in micro watts above which a charger is rated as "fast"; 1.5A @ 5V -->
+ <integer name="config_chargingFastThreshold">7500000</integer>
</resources>
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java b/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
index 57ee319..fdabf9f 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java
@@ -75,6 +75,7 @@
import static android.os.BatteryManager.EXTRA_HEALTH;
import static android.os.BatteryManager.EXTRA_LEVEL;
import static android.os.BatteryManager.EXTRA_MAX_CHARGING_CURRENT;
+import static android.os.BatteryManager.EXTRA_MAX_CHARGING_VOLTAGE;
import static android.os.BatteryManager.EXTRA_PLUGGED;
import static android.os.BatteryManager.EXTRA_STATUS;
@@ -155,6 +156,8 @@
*/
private static final int FINGERPRINT_STATE_CANCELLING_RESTARTING = 3;
+ private static final int DEFAULT_CHARGING_VOLTAGE_MICRO_VOLT = 5000000;
+
private static KeyguardUpdateMonitor sInstance;
private final Context mContext;
@@ -616,10 +619,25 @@
final int plugged = intent.getIntExtra(EXTRA_PLUGGED, 0);
final int level = intent.getIntExtra(EXTRA_LEVEL, 0);
final int health = intent.getIntExtra(EXTRA_HEALTH, BATTERY_HEALTH_UNKNOWN);
- final int maxChargingCurrent = intent.getIntExtra(EXTRA_MAX_CHARGING_CURRENT, -1);
+
+ final int maxChargingMicroAmp = intent.getIntExtra(EXTRA_MAX_CHARGING_CURRENT, -1);
+ int maxChargingMicroVolt = intent.getIntExtra(EXTRA_MAX_CHARGING_VOLTAGE, -1);
+ final int maxChargingMicroWatt;
+
+ if (maxChargingMicroVolt <= 0) {
+ maxChargingMicroVolt = DEFAULT_CHARGING_VOLTAGE_MICRO_VOLT;
+ }
+ if (maxChargingMicroAmp > 0) {
+ // Calculating muW = muA * muV / (10^6 mu^2 / mu); splitting up the divisor
+ // to maintain precision equally on both factors.
+ maxChargingMicroWatt = (maxChargingMicroAmp / 1000)
+ * (maxChargingMicroVolt / 1000);
+ } else {
+ maxChargingMicroWatt = -1;
+ }
final Message msg = mHandler.obtainMessage(
MSG_BATTERY_UPDATE, new BatteryStatus(status, level, plugged, health,
- maxChargingCurrent));
+ maxChargingMicroWatt));
mHandler.sendMessage(msg);
} else if (TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(action)) {
SimData args = SimData.fromIntent(intent);
@@ -803,13 +821,14 @@
public final int level;
public final int plugged;
public final int health;
- public final int maxChargingCurrent;
- public BatteryStatus(int status, int level, int plugged, int health, int maxChargingCurrent) {
+ public final int maxChargingWattage;
+ public BatteryStatus(int status, int level, int plugged, int health,
+ int maxChargingWattage) {
this.status = status;
this.level = level;
this.plugged = plugged;
this.health = health;
- this.maxChargingCurrent = maxChargingCurrent;
+ this.maxChargingWattage = maxChargingWattage;
}
/**
@@ -841,9 +860,9 @@
}
public final int getChargingSpeed(int slowThreshold, int fastThreshold) {
- return maxChargingCurrent <= 0 ? CHARGING_UNKNOWN :
- maxChargingCurrent < slowThreshold ? CHARGING_SLOWLY :
- maxChargingCurrent > fastThreshold ? CHARGING_FAST :
+ return maxChargingWattage <= 0 ? CHARGING_UNKNOWN :
+ maxChargingWattage < slowThreshold ? CHARGING_SLOWLY :
+ maxChargingWattage > fastThreshold ? CHARGING_FAST :
CHARGING_REGULAR;
}
}
@@ -1419,7 +1438,7 @@
}
// change in charging current while plugged in
- if (nowPluggedIn && current.maxChargingCurrent != old.maxChargingCurrent) {
+ if (nowPluggedIn && current.maxChargingWattage != old.maxChargingWattage) {
return true;
}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java b/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java
index fd84345..0affb7a 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/KeyguardIndicationController.java
@@ -48,8 +48,8 @@
*/
public class KeyguardIndicationController {
- private static final String TAG = "KeyguardIndicationController";
- private static final boolean DEBUG_CHARGING_CURRENT = false;
+ private static final String TAG = "KeyguardIndication";
+ private static final boolean DEBUG_CHARGING_SPEED = false;
private static final int MSG_HIDE_TRANSIENT = 1;
private static final int MSG_CLEAR_FP_MSG = 2;
@@ -72,7 +72,7 @@
private boolean mPowerPluggedIn;
private boolean mPowerCharged;
private int mChargingSpeed;
- private int mChargingCurrent;
+ private int mChargingWattage;
private String mMessageToShowOnScreenOn;
public KeyguardIndicationController(Context context, KeyguardIndicationTextView textView,
@@ -173,8 +173,8 @@
}
if (mPowerPluggedIn) {
String indication = computePowerIndication();
- if (DEBUG_CHARGING_CURRENT) {
- indication += ", " + (mChargingCurrent / 1000) + " mA";
+ if (DEBUG_CHARGING_SPEED) {
+ indication += ", " + (mChargingWattage / 1000) + " mW";
}
return indication;
}
@@ -231,7 +231,7 @@
|| status.status == BatteryManager.BATTERY_STATUS_FULL;
mPowerPluggedIn = status.isPluggedIn() && isChargingOrFull;
mPowerCharged = status.isCharged();
- mChargingCurrent = status.maxChargingCurrent;
+ mChargingWattage = status.maxChargingWattage;
mChargingSpeed = status.getChargingSpeed(mSlowThreshold, mFastThreshold);
updateIndication();
}
