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am 397c8629: am b97d8764: Merge "Switch from uevent model to /dev/input/event." into jb-mr1-dev

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* commit '397c862913c2c50e54d18dee7766b0ac93971ae3':
  Switch from uevent model to /dev/input/event.
This commit is contained in:
Craig Mautner
2012-10-01 16:43:27 -07:00
committed by Android Git Automerger
parent 44bfaedd1e 397c862913
commit 80944c5c92
6 changed files with 492 additions and 331 deletions
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4
core/res/res/values/config.xml
View File

@@ -960,4 +960,8 @@
-->
<bool name="config_enableWifiDisplay">false</bool>
<!-- When true use the linux /dev/input/event subsystem to detect the switch changes
on the headphone/microphone jack. When false use the older uevent framework. -->
<bool name="config_useDevInputEventForAudioJack">false</bool>
</resources>

3
core/res/res/values/symbols.xml
View File

@@ -271,7 +271,8 @@
<java-symbol type="bool" name="config_enableScreenshotChord" />
<java-symbol type="bool" name="config_bluetooth_default_profiles" />
<java-symbol type="bool" name="config_enableWifiDisplay" />
<java-symbol type="bool" name="config_useDevInputEventForAudioJack" />
<java-symbol type="integer" name="config_cursorWindowSize" />
<java-symbol type="integer" name="config_longPressOnPowerBehavior" />
<java-symbol type="integer" name="config_max_pan_devices" />

7
services/java/com/android/server/SystemServer.java
View File

@@ -631,11 +631,12 @@ class ServerThread extends Thread {
}
try {
Slog.i(TAG, "Wired Accessory Observer");
Slog.i(TAG, "Wired Accessory Manager");
// Listen for wired headset changes
new WiredAccessoryObserver(context);
inputManager.setWiredAccessoryCallbacks(
new WiredAccessoryManager(context, inputManager));
} catch (Throwable e) {
reportWtf("starting WiredAccessoryObserver", e);
reportWtf("starting WiredAccessoryManager", e);
}
try {

432
services/java/com/android/server/WiredAccessoryManager.java Normal file
View File

@@ -0,0 +1,432 @@
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.os.UEventObserver;
import android.util.Slog;
import android.media.AudioManager;
import android.util.Log;
import android.view.InputDevice;
import com.android.internal.R;
import com.android.server.input.InputManagerService;
import com.android.server.input.InputManagerService.WiredAccessoryCallbacks;
import static com.android.server.input.InputManagerService.SW_HEADPHONE_INSERT;
import static com.android.server.input.InputManagerService.SW_MICROPHONE_INSERT;
import static com.android.server.input.InputManagerService.SW_HEADPHONE_INSERT_BIT;
import static com.android.server.input.InputManagerService.SW_MICROPHONE_INSERT_BIT;
import java.io.File;
import java.io.FileReader;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.List;
/**
* <p>WiredAccessoryManager monitors for a wired headset on the main board or dock using
* both the InputManagerService notifyWiredAccessoryChanged interface and the UEventObserver
* subsystem.
*/
final class WiredAccessoryManager implements WiredAccessoryCallbacks {
private static final String TAG = WiredAccessoryManager.class.getSimpleName();
private static final boolean LOG = true;
private static final int BIT_HEADSET = (1 << 0);
private static final int BIT_HEADSET_NO_MIC = (1 << 1);
private static final int BIT_USB_HEADSET_ANLG = (1 << 2);
private static final int BIT_USB_HEADSET_DGTL = (1 << 3);
private static final int BIT_HDMI_AUDIO = (1 << 4);
private static final int SUPPORTED_HEADSETS = (BIT_HEADSET|BIT_HEADSET_NO_MIC|
BIT_USB_HEADSET_ANLG|BIT_USB_HEADSET_DGTL|
BIT_HDMI_AUDIO);
private static final String NAME_H2W = "h2w";
private static final String NAME_USB_AUDIO = "usb_audio";
private static final String NAME_HDMI_AUDIO = "hdmi_audio";
private static final String NAME_HDMI = "hdmi";
private static final int MSG_NEW_DEVICE_STATE = 1;
private final Object mLock = new Object();
private final WakeLock mWakeLock; // held while there is a pending route change
private final AudioManager mAudioManager;
private int mHeadsetState;
private int mSwitchValues;
private final WiredAccessoryObserver mObserver;
private final InputManagerService mInputManager;
private final boolean mUseDevInputEventForAudioJack;
public WiredAccessoryManager(Context context, InputManagerService inputManager) {
PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WiredAccessoryManager");
mWakeLock.setReferenceCounted(false);
mAudioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
mInputManager = inputManager;
mUseDevInputEventForAudioJack =
context.getResources().getBoolean(R.bool.config_useDevInputEventForAudioJack);
mObserver = new WiredAccessoryObserver();
context.registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context ctx, Intent intent) {
bootCompleted();
}
},
new IntentFilter(Intent.ACTION_BOOT_COMPLETED), null, null);
}
private void bootCompleted() {
if (mUseDevInputEventForAudioJack) {
int switchValues = 0;
if (mInputManager.getSwitchState(-1, InputDevice.SOURCE_ANY, SW_HEADPHONE_INSERT) == 1) {
switchValues |= SW_HEADPHONE_INSERT_BIT;
}
if (mInputManager.getSwitchState(-1, InputDevice.SOURCE_ANY, SW_MICROPHONE_INSERT) == 1) {
switchValues |= SW_MICROPHONE_INSERT_BIT;
}
notifyWiredAccessoryChanged(0, switchValues,
SW_HEADPHONE_INSERT_BIT | SW_MICROPHONE_INSERT_BIT);
}
mObserver.init();
}
@Override
public void notifyWiredAccessoryChanged(long whenNanos, int switchValues, int switchMask) {
if (LOG) Slog.v(TAG, "notifyWiredAccessoryChanged: when=" + whenNanos
+ " bits=" + switchCodeToString(switchValues, switchMask)
+ " mask=" + Integer.toHexString(switchMask));
synchronized (mLock) {
int headset;
mSwitchValues = (mSwitchValues & ~switchMask) | switchValues;
switch (mSwitchValues & (SW_HEADPHONE_INSERT_BIT | SW_MICROPHONE_INSERT_BIT)) {
case 0:
headset = 0;
break;
case SW_HEADPHONE_INSERT_BIT:
headset = BIT_HEADSET_NO_MIC;
break;
case SW_HEADPHONE_INSERT_BIT | SW_MICROPHONE_INSERT_BIT:
headset = BIT_HEADSET;
break;
case SW_MICROPHONE_INSERT_BIT:
headset = BIT_HEADSET;
break;
default:
headset = 0;
break;
}
updateLocked(NAME_H2W, headset);
}
}
/**
* Compare the existing headset state with the new state and pass along accordingly. Note
* that this only supports a single headset at a time. Inserting both a usb and jacked headset
* results in support for the last one plugged in. Similarly, unplugging either is seen as
* unplugging all.
*
* @param newName One of the NAME_xxx variables defined above.
* @param newState 0 or one of the BIT_xxx variables defined above.
*/
private void updateLocked(String newName, int newState) {
// Retain only relevant bits
int headsetState = newState & SUPPORTED_HEADSETS;
int usb_headset_anlg = headsetState & BIT_USB_HEADSET_ANLG;
int usb_headset_dgtl = headsetState & BIT_USB_HEADSET_DGTL;
int h2w_headset = headsetState & (BIT_HEADSET | BIT_HEADSET_NO_MIC);
boolean h2wStateChange = true;
boolean usbStateChange = true;
if (LOG) Slog.v(TAG, "newName=" + newName
+ " newState=" + newState
+ " headsetState=" + headsetState
+ " prev headsetState=" + mHeadsetState);
if (mHeadsetState == headsetState) {
Log.e(TAG, "No state change.");
return;
}
// reject all suspect transitions: only accept state changes from:
// - a: 0 headset to 1 headset
// - b: 1 headset to 0 headset
if (h2w_headset == (BIT_HEADSET | BIT_HEADSET_NO_MIC)) {
Log.e(TAG, "Invalid combination, unsetting h2w flag");
h2wStateChange = false;
}
// - c: 0 usb headset to 1 usb headset
// - d: 1 usb headset to 0 usb headset
if (usb_headset_anlg == BIT_USB_HEADSET_ANLG && usb_headset_dgtl == BIT_USB_HEADSET_DGTL) {
Log.e(TAG, "Invalid combination, unsetting usb flag");
usbStateChange = false;
}
if (!h2wStateChange && !usbStateChange) {
Log.e(TAG, "invalid transition, returning ...");
return;
}
mWakeLock.acquire();
Message msg = mHandler.obtainMessage(MSG_NEW_DEVICE_STATE, headsetState,
mHeadsetState, newName);
mHandler.sendMessage(msg);
mHeadsetState = headsetState;
}
private final Handler mHandler = new Handler(Looper.myLooper(), null, true) {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_NEW_DEVICE_STATE:
setDevicesState(msg.arg1, msg.arg2, (String)msg.obj);
mWakeLock.release();
}
}
};
private void setDevicesState(
int headsetState, int prevHeadsetState, String headsetName) {
synchronized (mLock) {
int allHeadsets = SUPPORTED_HEADSETS;
for (int curHeadset = 1; allHeadsets != 0; curHeadset <<= 1) {
if ((curHeadset & allHeadsets) != 0) {
setDeviceStateLocked(curHeadset, headsetState, prevHeadsetState, headsetName);
allHeadsets &= ~curHeadset;
}
}
}
}
private void setDeviceStateLocked(int headset,
int headsetState, int prevHeadsetState, String headsetName) {
if ((headsetState & headset) != (prevHeadsetState & headset)) {
int device;
int state;
if ((headsetState & headset) != 0) {
state = 1;
} else {
state = 0;
}
if (headset == BIT_HEADSET) {
device = AudioManager.DEVICE_OUT_WIRED_HEADSET;
} else if (headset == BIT_HEADSET_NO_MIC){
device = AudioManager.DEVICE_OUT_WIRED_HEADPHONE;
} else if (headset == BIT_USB_HEADSET_ANLG) {
device = AudioManager.DEVICE_OUT_ANLG_DOCK_HEADSET;
} else if (headset == BIT_USB_HEADSET_DGTL) {
device = AudioManager.DEVICE_OUT_DGTL_DOCK_HEADSET;
} else if (headset == BIT_HDMI_AUDIO) {
device = AudioManager.DEVICE_OUT_AUX_DIGITAL;
} else {
Slog.e(TAG, "setDeviceState() invalid headset type: "+headset);
return;
}
if (LOG)
Slog.v(TAG, "device "+headsetName+((state == 1) ? " connected" : " disconnected"));
mAudioManager.setWiredDeviceConnectionState(device, state, headsetName);
}
}
private String switchCodeToString(int switchValues, int switchMask) {
StringBuffer sb = new StringBuffer();
if ((switchMask & SW_HEADPHONE_INSERT_BIT) != 0 &&
(switchValues & SW_HEADPHONE_INSERT_BIT) != 0) {
sb.append("SW_HEADPHONE_INSERT ");
}
if ((switchMask & SW_MICROPHONE_INSERT_BIT) != 0 &&
(switchValues & SW_MICROPHONE_INSERT_BIT) != 0) {
sb.append("SW_MICROPHONE_INSERT");
}
return sb.toString();
}
class WiredAccessoryObserver extends UEventObserver {
private final List<UEventInfo> mUEventInfo;
public WiredAccessoryObserver() {
mUEventInfo = makeObservedUEventList();
}
void init() {
synchronized (mLock) {
if (LOG) Slog.v(TAG, "init()");
char[] buffer = new char[1024];
for (int i = 0; i < mUEventInfo.size(); ++i) {
UEventInfo uei = mUEventInfo.get(i);
try {
int curState;
FileReader file = new FileReader(uei.getSwitchStatePath());
int len = file.read(buffer, 0, 1024);
file.close();
curState = Integer.valueOf((new String(buffer, 0, len)).trim());
if (curState > 0) {
updateStateLocked(uei.getDevPath(), uei.getDevName(), curState);
}
} catch (FileNotFoundException e) {
Slog.w(TAG, uei.getSwitchStatePath() +
" not found while attempting to determine initial switch state");
} catch (Exception e) {
Slog.e(TAG, "" , e);
}
}
}
// At any given time accessories could be inserted
// one on the board, one on the dock and one on HDMI:
// observe three UEVENTs
for (int i = 0; i < mUEventInfo.size(); ++i) {
UEventInfo uei = mUEventInfo.get(i);
startObserving("DEVPATH="+uei.getDevPath());
}
}
private List<UEventInfo> makeObservedUEventList() {
List<UEventInfo> retVal = new ArrayList<UEventInfo>();
UEventInfo uei;
// Monitor h2w
if (!mUseDevInputEventForAudioJack) {
uei = new UEventInfo(NAME_H2W, BIT_HEADSET, BIT_HEADSET_NO_MIC);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
Slog.w(TAG, "This kernel does not have wired headset support");
}
}
// Monitor USB
uei = new UEventInfo(NAME_USB_AUDIO, BIT_USB_HEADSET_ANLG, BIT_USB_HEADSET_DGTL);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
Slog.w(TAG, "This kernel does not have usb audio support");
}
// Monitor HDMI
//
// If the kernel has support for the "hdmi_audio" switch, use that. It will be
// signalled only when the HDMI driver has a video mode configured, and the downstream
// sink indicates support for audio in its EDID.
//
// If the kernel does not have an "hdmi_audio" switch, just fall back on the older
// "hdmi" switch instead.
uei = new UEventInfo(NAME_HDMI_AUDIO, BIT_HDMI_AUDIO, 0);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
uei = new UEventInfo(NAME_HDMI, BIT_HDMI_AUDIO, 0);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
Slog.w(TAG, "This kernel does not have HDMI audio support");
}
}
return retVal;
}
@Override
public void onUEvent(UEventObserver.UEvent event) {
if (LOG) Slog.v(TAG, "Headset UEVENT: " + event.toString());
try {
String devPath = event.get("DEVPATH");
String name = event.get("SWITCH_NAME");
int state = Integer.parseInt(event.get("SWITCH_STATE"));
synchronized (mLock) {
updateStateLocked(devPath, name, state);
}
} catch (NumberFormatException e) {
Slog.e(TAG, "Could not parse switch state from event " + event);
}
}
private void updateStateLocked(String devPath, String name, int state) {
for (int i = 0; i < mUEventInfo.size(); ++i) {
UEventInfo uei = mUEventInfo.get(i);
if (devPath.equals(uei.getDevPath())) {
updateLocked(name, uei.computeNewHeadsetState(mHeadsetState, state));
return;
}
}
}
private final class UEventInfo {
private final String mDevName;
private final int mState1Bits;
private final int mState2Bits;
public UEventInfo(String devName, int state1Bits, int state2Bits) {
mDevName = devName;
mState1Bits = state1Bits;
mState2Bits = state2Bits;
}
public String getDevName() { return mDevName; }
public String getDevPath() {
return String.format("/devices/virtual/switch/%s", mDevName);
}
public String getSwitchStatePath() {
return String.format("/sys/class/switch/%s/state", mDevName);
}
public boolean checkSwitchExists() {
File f = new File(getSwitchStatePath());
return f.exists();
}
public int computeNewHeadsetState(int headsetState, int switchState) {
int preserveMask = ~(mState1Bits | mState2Bits);
int setBits = ((switchState == 1) ? mState1Bits :
((switchState == 2) ? mState2Bits : 0));
return ((headsetState & preserveMask) | setBits);
}
}
}
}

319
services/java/com/android/server/WiredAccessoryObserver.java
View File

@@ -1,319 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.os.UEventObserver;
import android.util.Slog;
import android.media.AudioManager;
import android.util.Log;
import java.io.File;
import java.io.FileReader;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.List;
/**
* <p>WiredAccessoryObserver monitors for a wired headset on the main board or dock.
*/
final class WiredAccessoryObserver extends UEventObserver {
private static final String TAG = WiredAccessoryObserver.class.getSimpleName();
private static final boolean LOG = true;
private static final int BIT_HEADSET = (1 << 0);
private static final int BIT_HEADSET_NO_MIC = (1 << 1);
private static final int BIT_USB_HEADSET_ANLG = (1 << 2);
private static final int BIT_USB_HEADSET_DGTL = (1 << 3);
private static final int BIT_HDMI_AUDIO = (1 << 4);
private static final int SUPPORTED_HEADSETS = (BIT_HEADSET|BIT_HEADSET_NO_MIC|
BIT_USB_HEADSET_ANLG|BIT_USB_HEADSET_DGTL|
BIT_HDMI_AUDIO);
private final Object mLock = new Object();
private final Context mContext;
private final WakeLock mWakeLock; // held while there is a pending route change
private final AudioManager mAudioManager;
private final List<UEventInfo> mUEventInfo;
private int mHeadsetState;
private int mPrevHeadsetState;
private String mHeadsetName;
public WiredAccessoryObserver(Context context) {
mContext = context;
PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WiredAccessoryObserver");
mWakeLock.setReferenceCounted(false);
mAudioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
mUEventInfo = makeObservedUEventList();
context.registerReceiver(new BootCompletedReceiver(),
new IntentFilter(Intent.ACTION_BOOT_COMPLETED), null, null);
}
@Override
public void onUEvent(UEventObserver.UEvent event) {
if (LOG) Slog.v(TAG, "Headset UEVENT: " + event.toString());
try {
String devPath = event.get("DEVPATH");
String name = event.get("SWITCH_NAME");
int state = Integer.parseInt(event.get("SWITCH_STATE"));
synchronized (mLock) {
updateStateLocked(devPath, name, state);
}
} catch (NumberFormatException e) {
Slog.e(TAG, "Could not parse switch state from event " + event);
}
}
private void bootCompleted() {
synchronized (mLock) {
char[] buffer = new char[1024];
mPrevHeadsetState = mHeadsetState;
if (LOG) Slog.v(TAG, "init()");
for (int i = 0; i < mUEventInfo.size(); ++i) {
UEventInfo uei = mUEventInfo.get(i);
try {
int curState;
FileReader file = new FileReader(uei.getSwitchStatePath());
int len = file.read(buffer, 0, 1024);
file.close();
curState = Integer.valueOf((new String(buffer, 0, len)).trim());
if (curState > 0) {
updateStateLocked(uei.getDevPath(), uei.getDevName(), curState);
}
} catch (FileNotFoundException e) {
Slog.w(TAG, uei.getSwitchStatePath() +
" not found while attempting to determine initial switch state");
} catch (Exception e) {
Slog.e(TAG, "" , e);
}
}
}
// At any given time accessories could be inserted
// one on the board, one on the dock and one on HDMI:
// observe three UEVENTs
for (int i = 0; i < mUEventInfo.size(); ++i) {
UEventInfo uei = mUEventInfo.get(i);
startObserving("DEVPATH="+uei.getDevPath());
}
}
private void updateStateLocked(String devPath, String name, int state) {
for (int i = 0; i < mUEventInfo.size(); ++i) {
UEventInfo uei = mUEventInfo.get(i);
if (devPath.equals(uei.getDevPath())) {
updateLocked(name, uei.computeNewHeadsetState(mHeadsetState, state));
return;
}
}
}
private void updateLocked(String newName, int newState) {
// Retain only relevant bits
int headsetState = newState & SUPPORTED_HEADSETS;
int usb_headset_anlg = headsetState & BIT_USB_HEADSET_ANLG;
int usb_headset_dgtl = headsetState & BIT_USB_HEADSET_DGTL;
int h2w_headset = headsetState & (BIT_HEADSET | BIT_HEADSET_NO_MIC);
boolean h2wStateChange = true;
boolean usbStateChange = true;
// reject all suspect transitions: only accept state changes from:
// - a: 0 heaset to 1 headset
// - b: 1 headset to 0 headset
if (LOG) Slog.v(TAG, "newState = "+newState+", headsetState = "+headsetState+","
+ "mHeadsetState = "+mHeadsetState);
if (mHeadsetState == headsetState || ((h2w_headset & (h2w_headset - 1)) != 0)) {
Log.e(TAG, "unsetting h2w flag");
h2wStateChange = false;
}
// - c: 0 usb headset to 1 usb headset
// - d: 1 usb headset to 0 usb headset
if ((usb_headset_anlg >> 2) == 1 && (usb_headset_dgtl >> 3) == 1) {
Log.e(TAG, "unsetting usb flag");
usbStateChange = false;
}
if (!h2wStateChange && !usbStateChange) {
Log.e(TAG, "invalid transition, returning ...");
return;
}
mHeadsetName = newName;
mPrevHeadsetState = mHeadsetState;
mHeadsetState = headsetState;
mWakeLock.acquire();
Message msg = mHandler.obtainMessage(0, mHeadsetState, mPrevHeadsetState, mHeadsetName);
mHandler.sendMessage(msg);
}
private void setDevicesState(
int headsetState, int prevHeadsetState, String headsetName) {
synchronized (mLock) {
int allHeadsets = SUPPORTED_HEADSETS;
for (int curHeadset = 1; allHeadsets != 0; curHeadset <<= 1) {
if ((curHeadset & allHeadsets) != 0) {
setDeviceStateLocked(curHeadset, headsetState, prevHeadsetState, headsetName);
allHeadsets &= ~curHeadset;
}
}
}
}
private void setDeviceStateLocked(int headset,
int headsetState, int prevHeadsetState, String headsetName) {
if ((headsetState & headset) != (prevHeadsetState & headset)) {
int device;
int state;
if ((headsetState & headset) != 0) {
state = 1;
} else {
state = 0;
}
if (headset == BIT_HEADSET) {
device = AudioManager.DEVICE_OUT_WIRED_HEADSET;
} else if (headset == BIT_HEADSET_NO_MIC){
device = AudioManager.DEVICE_OUT_WIRED_HEADPHONE;
} else if (headset == BIT_USB_HEADSET_ANLG) {
device = AudioManager.DEVICE_OUT_ANLG_DOCK_HEADSET;
} else if (headset == BIT_USB_HEADSET_DGTL) {
device = AudioManager.DEVICE_OUT_DGTL_DOCK_HEADSET;
} else if (headset == BIT_HDMI_AUDIO) {
device = AudioManager.DEVICE_OUT_AUX_DIGITAL;
} else {
Slog.e(TAG, "setDeviceState() invalid headset type: "+headset);
return;
}
if (LOG)
Slog.v(TAG, "device "+headsetName+((state == 1) ? " connected" : " disconnected"));
mAudioManager.setWiredDeviceConnectionState(device, state, headsetName);
}
}
private static List<UEventInfo> makeObservedUEventList() {
List<UEventInfo> retVal = new ArrayList<UEventInfo>();
UEventInfo uei;
// Monitor h2w
uei = new UEventInfo("h2w", BIT_HEADSET, BIT_HEADSET_NO_MIC);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
Slog.w(TAG, "This kernel does not have wired headset support");
}
// Monitor USB
uei = new UEventInfo("usb_audio", BIT_USB_HEADSET_ANLG, BIT_USB_HEADSET_DGTL);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
Slog.w(TAG, "This kernel does not have usb audio support");
}
// Monitor HDMI
//
// If the kernel has support for the "hdmi_audio" switch, use that. It will be signalled
// only when the HDMI driver has a video mode configured, and the downstream sink indicates
// support for audio in its EDID.
//
// If the kernel does not have an "hdmi_audio" switch, just fall back on the older "hdmi"
// switch instead.
uei = new UEventInfo("hdmi_audio", BIT_HDMI_AUDIO, 0);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
uei = new UEventInfo("hdmi", BIT_HDMI_AUDIO, 0);
if (uei.checkSwitchExists()) {
retVal.add(uei);
} else {
Slog.w(TAG, "This kernel does not have HDMI audio support");
}
}
return retVal;
}
private final Handler mHandler = new Handler(Looper.myLooper(), null, true) {
@Override
public void handleMessage(Message msg) {
setDevicesState(msg.arg1, msg.arg2, (String)msg.obj);
mWakeLock.release();
}
};
private static final class UEventInfo {
private final String mDevName;
private final int mState1Bits;
private final int mState2Bits;
public UEventInfo(String devName, int state1Bits, int state2Bits) {
mDevName = devName;
mState1Bits = state1Bits;
mState2Bits = state2Bits;
}
public String getDevName() { return mDevName; }
public String getDevPath() {
return String.format("/devices/virtual/switch/%s", mDevName);
}
public String getSwitchStatePath() {
return String.format("/sys/class/switch/%s/state", mDevName);
}
public boolean checkSwitchExists() {
File f = new File(getSwitchStatePath());
return ((null != f) && f.exists());
}
public int computeNewHeadsetState(int headsetState, int switchState) {
int preserveMask = ~(mState1Bits | mState2Bits);
int setBits = ((switchState == 1) ? mState1Bits :
((switchState == 2) ? mState2Bits : 0));
return ((headsetState & preserveMask) | setBits);
}
}
private final class BootCompletedReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
bootCompleted();
}
}
}

58
services/java/com/android/server/input/InputManagerService.java
View File

@@ -113,6 +113,7 @@ public class InputManagerService extends IInputManager.Stub
private final InputManagerHandler mHandler;
private WindowManagerCallbacks mWindowManagerCallbacks;
private WiredAccessoryCallbacks mWiredAccessoryCallbacks;
private boolean mSystemReady;
private NotificationManager mNotificationManager;
@@ -197,7 +198,7 @@ public class InputManagerService extends IInputManager.Stub
// Key states (may be returned by queries about the current state of a
// particular key code, scan code or switch).
/** The key state is unknown or the requested key itself is not supported. */
public static final int KEY_STATE_UNKNOWN = -1;
@@ -213,17 +214,41 @@ public class InputManagerService extends IInputManager.Stub
/** Scan code: Mouse / trackball button. */
public static final int BTN_MOUSE = 0x110;
// Switch code values must match bionic/libc/kernel/common/linux/input.h
/** Switch code: Lid switch. When set, lid is shut. */
public static final int SW_LID = 0x00;
/** Switch code: Keypad slide. When set, keyboard is exposed. */
public static final int SW_KEYPAD_SLIDE = 0x0a;
/** Switch code: Headphone. When set, headphone is inserted. */
public static final int SW_HEADPHONE_INSERT = 0x02;
/** Switch code: Microphone. When set, microphone is inserted. */
public static final int SW_MICROPHONE_INSERT = 0x04;
/** Switch code: Headphone/Microphone Jack. When set, something is inserted. */
public static final int SW_JACK_PHYSICAL_INSERT = 0x07;
public static final int SW_LID_BIT = 1 << SW_LID;
public static final int SW_KEYPAD_SLIDE_BIT = 1 << SW_KEYPAD_SLIDE;
public static final int SW_HEADPHONE_INSERT_BIT = 1 << SW_HEADPHONE_INSERT;
public static final int SW_MICROPHONE_INSERT_BIT = 1 << SW_MICROPHONE_INSERT;
public static final int SW_JACK_PHYSICAL_INSERT_BIT = 1 << SW_JACK_PHYSICAL_INSERT;
public static final int SW_JACK_BITS =
SW_HEADPHONE_INSERT_BIT | SW_MICROPHONE_INSERT_BIT | SW_JACK_PHYSICAL_INSERT_BIT;
/** Whether to use the dev/input/event or uevent subsystem for the audio jack. */
final boolean mUseDevInputEventForAudioJack;
public InputManagerService(Context context, Handler handler) {
this.mContext = context;
this.mHandler = new InputManagerHandler(handler.getLooper());
Slog.i(TAG, "Initializing input manager");
mUseDevInputEventForAudioJack =
context.getResources().getBoolean(R.bool.config_useDevInputEventForAudioJack);
Slog.i(TAG, "Initializing input manager, mUseDevInputEventForAudioJack="
+ mUseDevInputEventForAudioJack);
mPtr = nativeInit(this, mContext, mHandler.getLooper().getQueue());
}
@@ -231,6 +256,10 @@ public class InputManagerService extends IInputManager.Stub
mWindowManagerCallbacks = callbacks;
}
public void setWiredAccessoryCallbacks(WiredAccessoryCallbacks callbacks) {
mWiredAccessoryCallbacks = callbacks;
}
public void start() {
Slog.i(TAG, "Starting input manager");
nativeStart(mPtr);
@@ -335,7 +364,7 @@ public class InputManagerService extends IInputManager.Stub
public int getKeyCodeState(int deviceId, int sourceMask, int keyCode) {
return nativeGetKeyCodeState(mPtr, deviceId, sourceMask, keyCode);
}
/**
* Gets the current state of a key or button by scan code.
* @param deviceId The input device id, or -1 to consult all devices.
@@ -513,7 +542,7 @@ public class InputManagerService extends IInputManager.Stub
/**
* Gets information about the input device with the specified id.
* @param id The device id.
* @param deviceId The device id.
* @return The input device or null if not found.
*/
@Override // Binder call
@@ -976,8 +1005,8 @@ public class InputManagerService extends IInputManager.Stub
// Must be called on handler.
private void handleSwitchKeyboardLayout(int deviceId, int direction) {
final InputDevice device = getInputDevice(deviceId);
final String inputDeviceDescriptor = device.getDescriptor();
if (device != null) {
final String inputDeviceDescriptor = device.getDescriptor();
final boolean changed;
final String keyboardLayoutDescriptor;
synchronized (mDataStore) {
@@ -1214,6 +1243,7 @@ public class InputManagerService extends IInputManager.Stub
}
// Called by the heartbeat to ensure locks are not held indefinitely (for deadlock detection).
@Override
public void monitor() {
synchronized (mInputFilterLock) { }
nativeMonitor(mPtr);
@@ -1244,10 +1274,15 @@ public class InputManagerService extends IInputManager.Stub
+ ", mask=" + Integer.toHexString(switchMask));
}
if ((switchMask & (1 << SW_LID)) != 0) {
final boolean lidOpen = ((switchValues & (1 << SW_LID)) == 0);
if ((switchMask & SW_LID_BIT) != 0) {
final boolean lidOpen = ((switchValues & SW_LID_BIT) == 0);
mWindowManagerCallbacks.notifyLidSwitchChanged(whenNanos, lidOpen);
}
if (mUseDevInputEventForAudioJack && (switchMask & SW_JACK_BITS) != 0) {
mWiredAccessoryCallbacks.notifyWiredAccessoryChanged(whenNanos, switchValues,
switchMask);
}
}
// Native callback.
@@ -1431,7 +1466,6 @@ public class InputManagerService extends IInputManager.Stub
return null;
}
/**
* Callback interface implemented by the Window Manager.
*/
@@ -1458,6 +1492,13 @@ public class InputManagerService extends IInputManager.Stub
public int getPointerLayer();
}
/**
* Callback interface implemented by WiredAccessoryObserver.
*/
public interface WiredAccessoryCallbacks {
public void notifyWiredAccessoryChanged(long whenNanos, int switchValues, int switchMask);
}
/**
* Private handler for the input manager.
*/
@@ -1498,6 +1539,7 @@ public class InputManagerService extends IInputManager.Stub
mDisconnected = true;
}
@Override
public void sendInputEvent(InputEvent event, int policyFlags) {
if (event == null) {
throw new IllegalArgumentException("event must not be null");