Android教程之开机流程全面解析

const RIL_RadioFunctions *RIL_Init(const struct RIL_Env *env, int argc, char **argv)
ret = pthread_create(&s_tid_mainloop, &attr, mainLoop, NULL);
static void *mainLoop(void *param)
ret = at_open(fd, onUnsolicited);
RIL_requestTimedCallback(initializeCallback, NULL, &TIMEVAL_0);

static void initializeCallback(void *param)
{
ATResponse *p_respOnse= NULL;
int err;
setRadioState (RADIO_STATE_OFF);
at_handshake();
/* note: we don't check errors here. Everything important will
be handled in onATTimeout and onATReaderClosed */
/* atchannel is tolerant of echo but it must */
/* have verbose result codes */
at_send_command("ATE0Q0V1", NULL);
/* No auto-answer */
at_send_command("ATS0=0", NULL);
/* Extended errors */
at_send_command("AT+CMEE=1", NULL);
/* Network registration events */
err = at_send_command("AT+CREG=2", &p_response);
/* some handsets -- in tethered mode -- don't support CREG=2 */
if (err <0 || p_response->success == 0) {
at_send_command("AT+CREG=1", NULL);
}
at_response_free(p_response);
/* GPRS registration events */
at_send_command("AT+CGREG=1", NULL);
/* Call Waiting notifications */
at_send_command("AT+CCWA=1", NULL);
/* Alternating voice/data off */
at_send_command("AT+CMOD=0", NULL);
/* Not muted */
at_send_command("AT+CMUT=0", NULL);
/* +CSSU unsolicited supp service notifications */
at_send_command("AT+CSSN=0,1", NULL);
/* no connected line identification */
at_send_command("AT+COLP=0", NULL);
/* HEX character set */
at_send_command("AT+CSCS=\"HEX\"", NULL);
/* USSD unsolicited */
at_send_command("AT+CUSD=1", NULL);
/* Enable +CGEV GPRS event notifications, but don't buffer */
at_send_command("AT+CGEREP=1,0", NULL);
/* SMS PDU mode */
at_send_command("AT+CMGF=0", NULL);
#ifdef USE_TI_COMMANDS
at_send_command("AT%CPI=3", NULL);
/* TI specific -- notifications when SMS is ready (currently ignored) */
at_send_command("AT%CSTAT=1", NULL);
#endif /* USE_TI_COMMANDS */
/* assume radio is off on error */
if (isRadioOn() > 0) {
setRadioState (RADIO_STATE_SIM_NOT_READY);
}
}

static void pollSIMState (void *param)
{
ATResponse *p_response;
int ret;
if (sState != RADIO_STATE_SIM_NOT_READY) {
// no longer valid to poll
return;
}
switch(getSIMStatus()) {
case RIL_SIM_ABSENT:
case RIL_SIM_PIN:
case RIL_SIM_PUK:
case RIL_SIM_NETWORK_PERSONALIZATION:
default:
setRadioState(RADIO_STATE_SIM_LOCKED_OR_ABSENT);
return;
case RIL_SIM_NOT_READY:
RIL_requestTimedCallback (pollSIMState, NULL, &TIMEVAL_SIMPOLL);
return;
case RIL_SIM_READY:
setRadioState(RADIO_STATE_SIM_READY);
return;
}
}

err = at_send_command_singleline("AT+CPIN&＃63;", "+CPIN:", &p_response);

at_send_command_singleline("AT+CSMS=1", "+CSMS:", NULL);
at_send_command("AT+CNMI=1,2,2,1,1", NULL);

public void systemReady() {
mPolicy.systemReady();
}

public static WindowManagerPolicy makeNewWindowManager() {
return sPolicy.makeNewWindowManager();
}

public PhoneWindowManager makeNewWindowManager() {
return new PhoneWindowManager();
}

public void systemReady()
mKeyguardMediator.onSystemReady();
doKeyguard();
showLocked();
Message msg = mHandler.obtainMessage(SHOW);
mHandler.sendMessage(msg);

handleShow();
private void handleShow()
...
mCallback.onKeyguardShow();
mKeyguardViewManager.show();
mShowing = true;

public synchronized void show()
...
mKeyguardView = mKeyguardViewProperties.createKeyguardView(mContext, mUpdateMonitor, this);
...

public KeyguardViewBase createKeyguardView(Context context,
KeyguardUpdateMonitor updateMonitor,
KeyguardWindowController controller) {
return new LockPatternKeyguardView(context, updateMonitor,
mLockPatternUtils, controller);
}

public LockPatternKeyguardView(
Context context,
KeyguardUpdateMonitor updateMonitor,
LockPatternUtils lockPatternUtils,
KeyguardWindowController controller)
...
mLockScreen = createLockScreen();
addView(mLockScreen);
final UnlockMode unlockMode = getUnlockMode();
mUnlockScreen = createUnlockScreenFor(unlockMode);
mUnlockScreenMode = unlockMode;
addView(mUnlockScreen);
updateScreen(mMode);

enum UnlockMode {
Pattern, //图案锁
SimPin, //输入pin或者puk
Account //账号锁
}

private void setAirplaneModeOn(boolean enabling) {
mCheckBoxPref.setEnabled(false);
mCheckBoxPref.setSummary(enabling &＃63; R.string.airplane_mode_turning_on
: R.string.airplane_mode_turning_off);
// Change the system setting
Settings.System.putInt(mContext.getContentResolver(), Settings.System.AIRPLANE_MODE_ON,
enabling &＃63; 1 : 0);
// Post the intent
Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
intent.putExtra("state", enabling);
mContext.sendBroadcast(intent);
}

public void setRadioPower(boolean power)
mSST.setRadioPower(power);

public void setRadioPower(boolean power)
mDesiredPowerState = power;
setPowerStateToDesired();
cm.setRadioPower(true, null);

cm.setRadioPower(false, null);

CommandsInterface cm;
public final class RIL extends BaseCommands implements CommandsInterface

public void setRadioPower(boolean on, Message result)
RILRequest rr = RILRequest.obtain(RIL_REQUEST_RADIO_POWER, result);
rr.mp.writeInt(1);
...
send(rr)

requestRadioPower(data, datalen, t);

err = at_send_command("AT+CFUN=0", &p_response);
err = at_send_command("AT+CFUN=1", &p_response);

enable(false);

public synchronized boolean enable(boolean saveSetting)
setBluetoothState(BluetoothDevice.BLUETOOTH_STATE_TURNING_ON);
mEnableThread = new EnableThread(saveSetting);
mEnableThread.start();
----
disable(false)

public synchronized boolean disable(boolean saveSetting)
setBluetoothState(BluetoothDevice.BLUETOOTH_STATE_TURNING_OFF);

private void updateWifiState()

sendEnableMessage(true, false, mLastEnableUid);
sendStartMessage(strOngestLockMode== WifiManager.WIFI_MODE_SCAN_ONLY);
mWifiHandler.sendEmptyMessage(MESSAGE_STOP_WIFI);

public void handleMessage(Message msg)

mWifiStateTracker.setScanOnlyMode(msg.arg1 != 0);
setWifiEnabledBlocking(false, msg.arg1 == 1, msg.arg2);

mWifiStateTracker.disconnectAndStop();

WifiService(Context context, WifiStateTracker tracker)
boolean wifiEnabled = getPersistedWifiEnabled();
setWifiEnabledBlocking(wifiEnabled, false, Process.myUid());