system/fastboot: Enable USB and TCP at the same time

[JianyuWang0623]

Summary

Add support for enabling USB and TCP transport at the same time, as subtask of #3098 (comment).

Logic of AOSP/fastboot(fastboot_device.cpp#117):

    if (android::base::GetProperty("fastbootd.protocol", "usb") == "tcp") {
        transport_ = std::make_unique<ClientTcpTransport>();
    } else {
        transport_ = std::make_unique<ClientUsbTransport>();
    }

Please see the "Testing" below for more details.

And ignore space change may be eaiser to review, thanks.

$ git diff apache/master --stat
 system/fastboot/fastboot.c | 246 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------
 1 file changed, 155 insertions(+), 91 deletions(-)

$ git diff apache/master --stat -b
 system/fastboot/fastboot.c | 148 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------------------------------
 1 file changed, 106 insertions(+), 42 deletions(-)

Impact

• system/fastboot

Testing

Selftest

1. "qemu-armv8a:fastboot" and "esp32s3-devkit:fastboot_tcp" PASSED for TCP transport only
2. "lckfb-szpi-esp32s3:fastboot" PASSED for both TCP and USB transport at the same time.

Below are test records (of the same time) of "lckfb-szpi-esp32s3:fastboot" with both TCP and USB transport enabled:

• Host - USB

$ fastboot oem shell ifconfig
wlan0   Link encap:Ethernet HWaddr a0:85:e3:f4:43:30 at RUNNING mtu 1500
        inet addr:192.168.211.111 DRaddr:192.168.211.107 Mask:255.255.255.0

OKAY [  0.010s]
Finished. Total time: 0.010s

$ fastboot oem shell "uname -a"
NuttX  0.0.0  Jun 19 2025 13:44:02 xtensa lckfb-szpi-esp32s3
OKAY [  0.006s]
Finished. Total time: 0.006s

$ fastboot flash console Kconfig 
Warning: skip copying console image avb footer (console partition size: 0, console image size: 1072).
Sending 'console' (1 KB)                           OKAY [  0.013s]
Writing 'console'                                  OKAY [  0.089s]
Finished. Total time: 0.153s

• Host - TCP

PS C:\workspace> fastboot.exe -s tcp:192.168.211.111 oem shell ifconfig
wlan0   Link encap:Ethernet HWaddr a0:85:e3:f4:43:30 at RUNNING mtu 1500
        inet addr:192.168.211.111 DRaddr:192.168.211.107 Mask:255.255.255.0

OKAY [  0.049s]
Finished. Total time: 0.049s

PS C:\workspace> fastboot.exe -s tcp:192.168.211.111 oem shell "uname -a"
NuttX  0.0.0  Jun 19 2025 13:44:02 xtensa lckfb-szpi-esp32s3
OKAY [  0.040s]
Finished. Total time: 0.041s

PS C:\workspace> fastboot.exe -s tcp:192.168.211.111 flash console Kconfig
Warning: skip copying console image avb footer (console partition size: 0, console image size: 580).
Sending 'console' (0 KB)                           OKAY [  0.028s]
Writing 'console'                                  OKAY [  0.046s]
Finished. Total time: 0.243s

[xiaoxiang781216]

@JianyuWang0623 let's change "lckfb-szpi-esp32s3:fastboot" to enable both transport too.

[JianyuWang0623]

@JianyuWang0623 let's change "lckfb-szpi-esp32s3:fastboot" to enable both transport too.

@xiaoxiang781216 Done, and also done for the well known "esp32s3-devkit", could you review the pull request please? apache/nuttx#16562