Android(安卓)Wi-Fi 设置带宽代码流程
16lz
2021-12-04
1 LINUX/android/frameworks/base/wifi/java/android/net/wifi/WifiManager.java
public void setFrequencyBand(int band, boolean persist) { try { mService.setFrequencyBand(band, persist); } catch (RemoteException e) { } }2 LINUX/android/frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiServiceImpl.java
public void setFrequencyBand(int band, boolean persist) { enforceChangePermission(); if (!isDualBandSupported()) return; Slog.i(TAG, "WifiService trying to set frequency band to " + band + " with persist set to " + persist); final long token = Binder.clearCallingIdentity(); try { mWifiStateMachine.setFrequencyBand(band, persist); } finally { Binder.restoreCallingIdentity(token); } }3 LINUX/android/frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiStateMachine.java
public void setFrequencyBand(int band, boolean persist) { if (persist) { Settings.Global.putInt(mContext.getContentResolver(), Settings.Global.WIFI_FREQUENCY_BAND, band); } sendMessage(CMD_SET_FREQUENCY_BAND, band, 0); }4 LINUX/android/frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiNative.java
public boolean setBand(int band) { String bandstr; if (band == WifiManager.WIFI_FREQUENCY_BAND_5GHZ) bandstr = "5G"; else if (band == WifiManager.WIFI_FREQUENCY_BAND_2GHZ) bandstr = "2G"; else bandstr = "AUTO"; return doBooleanCommand("SET SETBAND " + bandstr); }更多相关文章
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