uninstall from qt offroad (#19538)

* more offroad

* implement uninstall

* just uninstall for now
old-commit-hash: 8d9be50bcc

selfdrive/hardware/tici/hardware.py

@@ -1,5 +1,6 @@
 import os
 import subprocess
+from pathlib import Path
 
 from cereal import log
 from selfdrive.hardware.base import HardwareBase
@@ -46,8 +47,9 @@ class Tici(HardwareBase):
     subprocess.check_output(["sudo", "reboot"])
 
   def uninstall(self):
-    # TODO: implement uninstall. reboot to factory reset?
-    pass
+    Path("/data/__system_reset__").touch()
+    os.sync()
+    self.reboot()
 
   def get_serial(self):
     return self.get_cmdline()['androidboot.serialno']

selfdrive/ui/qt/offroad/settings.cc

@@ -125,33 +125,40 @@ QWidget * device_panel() {
   Params params = Params();
   std::vector<std::pair<std::string, std::string>> labels = {
     {"Dongle ID", params.get("DongleId", false)},
-    //{"Serial Number", "abcdefghijk"},
   };
 
-  for (auto l : labels) {
+  // get serial number
+  //std::string cmdline = util::read_file("/proc/cmdline");
+  //auto delim = cmdline.find("serialno=");
+  //if (delim != std::string::npos) {
+  //  labels.push_back({"Serial", cmdline.substr(delim, cmdline.find(" ", delim))});
+  //}
+
+  for (auto &l : labels) {
     QString text = QString::fromStdString(l.first + ": " + l.second);
     device_layout->addWidget(new QLabel(text));
   }
 
+  // TODO: show current calibration values
   QPushButton *clear_cal_btn = new QPushButton("Reset Calibration");
   device_layout->addWidget(clear_cal_btn);
   QObject::connect(clear_cal_btn, &QPushButton::released, [=]() {
     Params().delete_db_value("CalibrationParams");
   });
 
-  std::map<std::string, const char *> power_btns = {
-    {"Power Off", "sudo poweroff"},
-    {"Reboot", "sudo reboot"},
-  };
-
-  for (auto b : power_btns) {
-    QPushButton *btn = new QPushButton(QString::fromStdString(b.first));
-    device_layout->addWidget(btn);
+  QPushButton *poweroff_btn = new QPushButton("Power Off");
+  device_layout->addWidget(poweroff_btn);
+  QPushButton *reboot_btn = new QPushButton("Reboot");
+  device_layout->addWidget(reboot_btn);
 #ifdef __aarch64__
-    QObject::connect(btn, &QPushButton::released,
-                     [=]() {std::system(b.second);});
+  QObject::connect(poweroff_btn, &QPushButton::released, [=]() { std::system("sudo poweroff"); });
+  QObject::connect(reboot_btn, &QPushButton::released, [=]() { std::system("sudo reboot"); });
 #endif
-  }
+
+  // TODO: add confirmation dialog
+  QPushButton *uninstall_btn = new QPushButton("Uninstall openpilot");
+  device_layout->addWidget(uninstall_btn);
+  QObject::connect(uninstall_btn, &QPushButton::released, [=]() { Params().write_db_value("DoUninstall", "1"); });
 
   QWidget *widget = new QWidget;
   widget->setLayout(device_layout);