public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode==KeyEvent.KEYCODE_VOLUME_UP) {
Log.i(TAG,event.toString());
return true;
}
return super.onKeyDown(keyCode,event);
}
記得，處理過(攔截), 就要 return true.$ svn propset svn:executable "777" *.sh
W/Resources( 220): Preloaded drawable resource #0x10802a5 (android:drawable/dialog_top_holo_dark) that varies with configuration!! W/Resources( 220): Preloaded drawable resource #0x10802a6 (android:drawable/dialog_top_holo_light) that varies with configuration!! W/Resources( 220): Preloaded drawable resource #0x1080358 (android:drawable/ic_dialog_alert_holo_dark) that varies with configuration!! W/Resources( 220): Preloaded drawable resource #0x1080359 (android:drawable/ic_dialog_alert_holo_light) that varies with configuration!! W/Resources( 220): Preloaded drawable resource #0x1080496 (android:drawable/list_divider_holo_dark) that varies with configuration!! W/Resources( 220): Preloaded drawable resource #0x1080497 (android:drawable/list_divider_holo_light) that varies with configuration!! W/Resources( 220): Preloaded drawable resource #0x1080497 (android:drawable/list_divider_holo_light) that varies with configuration!! W/Resources( 220): Preloaded drawable resource #0x10800c2 (android:drawable/ab_transparent_dark_holo) that varies with configuration!!
private boolean verifyPreloadConfig(int changingConfigurations, int allowVarying,
int resourceId, String name) {
// We allow preloading of resources even if they vary by font scale (which
// doesn't impact resource selection) or density (which we handle specially by
// simply turning off all preloading), as well as any other configs specified
// by the caller.
if (((changingConfigurations&~(ActivityInfo.CONFIG_FONT_SCALE |
ActivityInfo.CONFIG_DENSITY)) & ~allowVarying) != 0) {
String resName;
try {
resName = getResourceName(resourceId);
} catch (NotFoundException e) {
resName = "?";
}
// This should never happen in production, so we should log a
// warning even if we're not debugging.
Log.w(TAG, "Preloaded " + name + " resource #0x"
+ Integer.toHexString(resourceId)
+ " (" + resName + ") that varies with configuration!!");
return false;
}
if (TRACE_FOR_PRELOAD) {
String resName;
try {
resName = getResourceName(resourceId);
} catch (NotFoundException e) {
resName = "?";
}
Log.w(TAG, "Preloading " + name + " resource #0x"
+ Integer.toHexString(resourceId)
+ " (" + resName + ")");
}
return true;
}
public void setMasterVolume(int volume, int flags, String callingPackage) {
if (mUseFixedVolume) {
return;
}
if (mAppOps.noteOp(AppOpsManager.OP_AUDIO_MASTER_VOLUME, Binder.getCallingUid(),
callingPackage) != AppOpsManager.MODE_ALLOWED) {
return;
}
if (volume < 0) {
volume = 0;
} else if (volume > MAX_MASTER_VOLUME) {
volume = MAX_MASTER_VOLUME;
}
doSetMasterVolume((float)volume / MAX_MASTER_VOLUME, flags);
}
private void doSetMasterVolume(float volume, int flags) {
// don't allow changing master volume when muted
if (!AudioSystem.getMasterMute()) {
int oldVolume = getMasterVolume();
AudioSystem.setMasterVolume(volume);
int newVolume = getMasterVolume();
if (newVolume != oldVolume) {
// Post a persist master volume msg
sendMsg(mAudioHandler, MSG_PERSIST_MASTER_VOLUME, SENDMSG_REPLACE,
Math.round(volume * (float)1000.0), 0, null, PERSIST_DELAY);
}
// Send the volume update regardless whether there was a change.
sendMasterVolumeUpdate(flags, oldVolume, newVolume);
}
}
status_t AudioFlinger::setMasterVolume(float value)
{
....
...
// Set master volume in the HALs which support it.
for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
AutoMutex lock(mHardwareLock);
AudioHwDevice *dev = mAudioHwDevs.valueAt(i);
mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME;
if (dev->canSetMasterVolume()) {
dev->hwDevice()->set_master_volume(dev->hwDevice(), value);
}
mHardwareStatus = AUDIO_HW_IDLE;
}
class AudioHwDevice {
...
...
bool canSetMasterVolume() const {
return (0 != (mFlags & AHWD_CAN_SET_MASTER_VOLUME));
}
AudioHwDevice(audio_module_handle_t handle,
const char *moduleName,
audio_hw_device_t *hwDevice,
Flags flags)
: mHandle(handle), mModuleName(strdup(moduleName))
, mHwDevice(hwDevice)
, mFlags(flags) { }
AudioHwDevice::Flags flags = static_cast<AudioHwDevice::Flags>(0);
{
....
....
mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME;
if ((NULL != dev->set_master_volume) &&
(OK == dev->set_master_volume(dev, mMasterVolume))) {
flags = static_cast<AudioHwDevice::Flags>(flags |
AudioHwDevice::AHWD_CAN_SET_MASTER_VOLUME);
}
mHardwareStatus = AUDIO_HW_SET_MASTER_MUTE;
if ((NULL != dev->set_master_mute) &&
(OK == dev->set_master_mute(dev, mMasterMute))) {
flags = static_cast<AudioHwDevice::Flags>(flags |
AudioHwDevice::AHWD_CAN_SET_MASTER_MUTE);
}
...
}
...
audio_module_handle_t handle = nextUniqueId();
mAudioHwDevs.add(handle, new AudioHwDevice(handle, name, dev, flags));
static int adev_open(const hw_module_t* module, const char* name,
hw_device_t** device)
{
....
adev->hw_device.set_master_volume = adev_set_master_volume;
static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
{
return -ENOSYS;
}
.. 也就是說...沒有提供這個功能。
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 8006659..ecb8780 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -65,7 +65,7 @@
<!-- Flag indicating that the media framework should allow changing
master volume stream and nothing else . -->
- <bool name="config_useMasterVolume">false</bool>
+ <bool name="config_useMasterVolume">true</bool>
叫 .../media/java/android/media/AudioManager.java:585: com.android.internal.R.bool.config_useMasterVolume); ./media/java/android/media/AudioService.java:641: com.android.internal.R.bool.config_useMasterVolume);這兩個 source 用 MasterVolume
protected boolean onKeyDown(int featureId, int keyCode, KeyEvent event) {
/* ****************************************************************************
* HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
*
* If your key handling must happen before the app gets a crack at the event,
* it goes in PhoneWindowManager.
*
* If your key handling should happen in all windows, and does not depend on
* the state of the current application, other than that the current
* application can override the behavior by handling the event itself, it
* should go in PhoneFallbackEventHandler.
*
* Only if your handling depends on the window, and the fact that it has
* a DecorView, should it go here.
* ****************************************************************************/
public boolean detectSafeMode() {
if (!mInputMonitor.waitForInputDevicesReady(
INPUT_DEVICES_READY_FOR_SAFE_MODE_DETECTION_TIMEOUT_MILLIS)) {
Slog.w(TAG, "Devices still not ready after waiting "
+ INPUT_DEVICES_READY_FOR_SAFE_MODE_DETECTION_TIMEOUT_MILLIS
+ " milliseconds before attempting to detect safe mode.");
}
int menuState = mInputManager.getKeyCodeState(-1, InputDevice.SOURCE_ANY,
KeyEvent.KEYCODE_MENU);
int sState = mInputManager.getKeyCodeState(-1, InputDevice.SOURCE_ANY, KeyEvent.KEYCODE_S);
int dpadState = mInputManager.getKeyCodeState(-1, InputDevice.SOURCE_DPAD,
KeyEvent.KEYCODE_DPAD_CENTER);
int trackballState = mInputManager.getScanCodeState(-1, InputDevice.SOURCE_TRACKBALL,
InputManagerService.BTN_MOUSE);
int volumeDownState = mInputManager.getKeyCodeState(-1, InputDevice.SOURCE_ANY,
KeyEvent.KEYCODE_VOLUME_DOWN);
mSafeMode = menuState > 0 || sState > 0 || dpadState > 0 || trackballState > 0
|| volumeDownState > 0;
try {
if (SystemProperties.getInt(ShutdownThread.REBOOT_SAFEMODE_PROPERTY, 0) != 0) {
mSafeMode = true;
SystemProperties.set(ShutdownThread.REBOOT_SAFEMODE_PROPERTY, "");
}
} catch (IllegalArgumentException e) {
}
if (mSafeMode) {
Log.i(TAG, "SAFE MODE ENABLED (menu=" + menuState + " s=" + sState
+ " dpad=" + dpadState + " trackball=" + trackballState + ")");
} else {
Log.i(TAG, "SAFE MODE not enabled");
}
mPolicy.setSafeMode(mSafeMode);
return mSafeMode;
}
#define SNDRV_MASK_MAX 256
struct snd_mask {
__u32 bits[(SNDRV_MASK_MAX+31)/32];
};
root@sabreauto_6q:/ # tinypcminfo -D 0
Info for card 0, device 0:
PCM out:
Access: 0x000009
Format[0]: 0x000045
Format[1]: 00000000
Format Name: S8, S16_LE, S24_LE
Subformat: 0x000001
Rate: min=48000Hz max=192000Hz
Channels: min=1 max=12
Sample bits: min=8 max=32
Period size: min=3 max=65535
Period count: min=2 max=255
PCM in:
Access: 0x000009
Format[0]: 0x000045
Format[1]: 00000000
Format Name: S8, S16_LE, S24_LE
Subformat: 0x000001
Rate: min=48000Hz max=192000Hz
Channels: min=1 max=8
Sample bits: min=8 max=32
Period size: min=4 max=65535
Period count: min=2 max=255
#define FSL_ESAI_RATES SNDRV_PCM_RATE_8000_192000
...
...
.probe = fsl_esai_dai_probe,
.playback = {
.stream_name = "esai-Playback",
.channels_min = 1,
.channels_max = 12,
.rates = FSL_ESAI_RATES,
.formats = FSL_ESAI_FORMATS,
},
.capture = {
.stream_name = "esai-Capture",
.channels_min = 1,
.channels_max = 8,
.rates = FSL_ESAI_RATES,
.formats = FSL_ESAI_FORMATS,
},
.ops = &fsl_esai_dai_ops,
};
include/sound/pcm.h:
/* If you change this don't forget to change rates[] table in pcm_native.c */
#define SNDRV_PCM_RATE_5512 (1<<0) /* 5512Hz */
#define SNDRV_PCM_RATE_8000 (1<<1) /* 8000Hz */
#define SNDRV_PCM_RATE_11025 (1<<2) /* 11025Hz */
#define SNDRV_PCM_RATE_16000 (1<<3) /* 16000Hz */
#define SNDRV_PCM_RATE_22050 (1<<4) /* 22050Hz */
#define SNDRV_PCM_RATE_32000 (1<<5) /* 32000Hz */
#define SNDRV_PCM_RATE_44100 (1<<6) /* 44100Hz */
#define SNDRV_PCM_RATE_48000 (1<<7) /* 48000Hz */
#define SNDRV_PCM_RATE_64000 (1<<8) /* 64000Hz */
#define SNDRV_PCM_RATE_88200 (1<<9) /* 88200Hz */
#define SNDRV_PCM_RATE_96000 (1<<10) /* 96000Hz */
#define SNDRV_PCM_RATE_176400 (1<<11) /* 176400Hz */
#define SNDRV_PCM_RATE_192000 (1<<12) /* 192000Hz */
#define SNDRV_PCM_RATE_CONTINUOUS (1<<30) /* continuous range */
#define SNDRV_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
#define SNDRV_PCM_RATE_8000_44100 (SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_11025|\
SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_22050|\
SNDRV_PCM_RATE_32000|SNDRV_PCM_RATE_44100)
#define SNDRV_PCM_RATE_8000_48000 (SNDRV_PCM_RATE_8000_44100|SNDRV_PCM_RATE_48000)
#define SNDRV_PCM_RATE_8000_96000 (SNDRV_PCM_RATE_8000_48000|SNDRV_PCM_RATE_64000|\
SNDRV_PCM_RATE_88200|SNDRV_PCM_RATE_96000)
#define SNDRV_PCM_RATE_8000_192000 (SNDRV_PCM_RATE_8000_96000|SNDRV_PCM_RATE_176400|\
#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 13
#error "Change this table"
#endif
static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 24000, 32000, 44100,
48000, 64000, 88200, 96000, 176400, 192000 };
這樣 build 完就可以 support 2400 了...