平台
RK3588 + Android 12
Android 调试桥 (adb)
Android 调试桥 (adb) 是一种功能多样的命令行工具，可让您与设备进行通信。adb 命令可用于执行各种设备操作，例如安装和调试应用。adb 提供对 Unix shell（可用来在设备上运行各种命令）的访问权限。它是一种客户端-服务器程序，包括以下三个组件：
- 客户端：用于发送命令。客户端在开发机器上运行。您可以通过发出 adb 命令从命令行终端调用客户端。
- 守护程序 (adbd)：用于在设备上运行命令。守护程序在每个设备上作为后台进程运行。
- 服务器：用于管理客户端与守护程序之间的通信。服务器在开发机器上作为后台进程运行。
AndroidStudio 中显示的设备名称
第一个 rockchip 来自系统属性: ro.product.product.manufacturer
第二个一般是ro.product.model
PS 如果 manufacturer 和 model 一样, 那么会只显示一个的值.
ADB使能和控制USB调试
- ADB调试的开关:
系统属性persist.sys.usb.config值里是否包含adb
系统设置数据库Settings.Global.ADB_ENABLED值是否为非0
frameworks/base/services/core/java/com/android/server/adb/AdbService.java
private static final String USB_PERSISTENT_CONFIG_PROPERTY = "persist.sys.usb.config";
private void initAdbState() {
try {
/*
* Use the normal bootmode persistent prop to maintain state of adb across
* all boot modes.
*/
mIsAdbUsbEnabled = containsFunction(
SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY, ""),
UsbManager.USB_FUNCTION_ADB);
mIsAdbWifiEnabled = "1".equals(
SystemProperties.get(WIFI_PERSISTENT_CONFIG_PROPERTY, "0"));
// register observer to listen for settings changes
mObserver = new AdbSettingsObserver();
mContentResolver.registerContentObserver(
Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
false, mObserver);
mContentResolver.registerContentObserver(
Settings.Global.getUriFor(Settings.Global.ADB_WIFI_ENABLED),
false, mObserver);
} catch (Exception e) {
Slog.e(TAG, "Error in initAdbState", e);
}
}
private void setAdbEnabled(boolean enable, byte transportType) {
if (DEBUG) {
Slog.d(TAG, "setAdbEnabled(" + enable + "), mIsAdbUsbEnabled=" + mIsAdbUsbEnabled
+ ", mIsAdbWifiEnabled=" + mIsAdbWifiEnabled + ", transportType="
+ transportType);
}
if (transportType == AdbTransportType.USB && enable != mIsAdbUsbEnabled) {
mIsAdbUsbEnabled = enable;
} else if (transportType == AdbTransportType.WIFI && enable != mIsAdbWifiEnabled) {
mIsAdbWifiEnabled = enable;
if (mIsAdbWifiEnabled) {
if (!AdbProperties.secure().orElse(false) && mDebuggingManager == null) {
// Start adbd. If this is secure adb, then we defer enabling adb over WiFi.
SystemProperties.set(WIFI_PERSISTENT_CONFIG_PROPERTY, "1");
mConnectionPortPoller =
new AdbDebuggingManager.AdbConnectionPortPoller(mPortListener);
mConnectionPortPoller.start();
}
} else {
// Stop adb over WiFi.
SystemProperties.set(WIFI_PERSISTENT_CONFIG_PROPERTY, "0");
if (mConnectionPortPoller != null) {
mConnectionPortPoller.cancelAndWait();
mConnectionPortPoller = null;
}
}
} else {
// No change
return;
}
if (enable) {
startAdbd();
} else {
stopAdbd();
}
for (IAdbTransport transport : mTransports.values()) {
try {
transport.onAdbEnabled(enable, transportType);
} catch (RemoteException e) {
Slog.w(TAG, "Unable to send onAdbEnabled to transport " + transport.toString());
}
}
if (mDebuggingManager != null) {
mDebuggingManager.setAdbEnabled(enable, transportType);
}
}
private void startAdbd() {
SystemProperties.set(CTL_START, ADBD);
}
private void stopAdbd() {
if (!mIsAdbUsbEnabled && !mIsAdbWifiEnabled) {
SystemProperties.set(CTL_STOP, ADBD);
}
}
使用设置系统属性ctl.start启动和ctl.stop停止adbd服务
- 增加系统控制是否启用USB调试
packages/modules/adb/daemon/main.cpp
int adbd_main(int server_port) {
umask(0);
signal(SIGPIPE, SIG_IGN);
//.....
#if defined(__ANDROID__)
bool adb_usb_on = android::base::GetBoolProperty("persist.adb.adb_usb", false);
if (access(USB_FFS_ADB_EP0, F_OK) == 0 && adb_usb_on) {
// Listen on USB.
usb_init();
is_usb = true;
}
#endif
修改系统属性后, 重启adbd服务生效.
- 默认网络ADB调试端口
系统属性service.adb.tcp.port
修改 packages/modules/adb/daemon/main.cpp 需注意, 可能导致烧录后不能启动, 卡在下面LOG:
emmc_point is /dev/block/mmcblk0
sd_point is (null)
sd_point_2 is (null)
read cmdline
I:Boot command: boot-recovery
I:Got 2 arguments from boot message
ensure_path_mounted path=/cache/recovery/last_locale
I:[libfs_mgr]superblock s_max_mnt_count:65535,/dev/block/by-name/cache
I:[libfs_mgr]__mount(source=/dev/block/by-name/cache,target=/cache,type=ext4)=0: Success
Loading make_device from librecovery_ui_ext.so
W:Failed to read max brightness: No such file or directory
I:Screensaver disabled
erasing_text: zh (81 x 38 @ 5031)
no_command_text: zh (111 x 38 @ 5031)
error_text: zh (65 x 38 @ 5031)
W:Failed to load bitmap cancel_wipe_data_text for locale zh-Hans-CN (error -1). Falling back to use default locale.
E:Failed to load bitmap cancel_wipe_data_text for locale en-US (error -1)
W:Failed to load bitmap factory_data_reset_text for locale zh-Hans-CN (error -1). Falling back to use default locale.
E:Failed to load bitmap factory_data_reset_text for locale en-US (error -1)
W:Failed to load bitmap try_again_text for locale zh-Hans-CN (error -1). Falling back to use default locale.
E:Failed to load bitmap try_again_text for locale en-US (error -1)
W:Failed to load bitmap wipe_data_confirmation_text for locale zh-Hans-CN (error -1). Falling back to use default loc.
E:Failed to load bitmap wipe_data_confirmation_text for locale en-US (error -1)
W:Failed to load bitmap wipe_data_menu_header_text for locale zh-Hans-CN (error -1). Falling back to use default loca.
E:Failed to load bitmap wipe_data_menu_header_text for locale en-US (error -1)
I:Starting recovery (pid 258) on Fri Nov 17 01:15:53 2023
I:locale is [zh-Hans-CN]
SELinux: Loaded file_contexts