Modify detection method for usb-dwc3 and provide more info when it fa…

…ils (Bugfix) (#903)

providers/iiotg/units/usb-dwc3/jobs.pxu

@@ -3,22 +3,31 @@ _summary: Detect if the USB DWC3 drivers are loaded
 category_id: usb-dwc3
 imports: from com.canonical.plainbox import manifest
 requires:
- device.driver == 'dwc3-pci'
  manifest.has_usb_dwc3_controller == 'True'
-flags: simple fail-on-resource
+plugin: shell
+flags: simple
 command:
+ if ! lspci -v | grep dwc3-pci; then
+ echo "Cannot find the 'dwc3-pci' driver be used!"
+ echo "Please make sure this feature is supported on this platform and check the value of xDCI in BIOS setting."
+ exit 1
+ fi
  echo "dwc3-pci driver loaded"
 
 id: usb-dwc3/module-detect
 _summary: Detect if the USB DWC3 module is loaded
 category_id: usb-dwc3
 imports: from com.canonical.plainbox import manifest
 requires:
- module.name == 'dwc3_pci'
  manifest.has_usb_dwc3_controller == 'True'
-flags: simple fail-on-resource
+plugin: shell
+flags: simple
 command:
- echo "dwc3_pci module loaded"
+ if ! lsmod | grep dwc3_pci; then
+ echo "Cannot find the 'dwc3_pci' module be loaded!"
+ echo "Please make sure this feature is supported on this platform and check the value of xDCI in BIOS setting."
+ exit 1
+ fi
 
 id: usb-dwc3/mass-storage
 _summary: Check DUT can be detected as mass storage device
@@ -63,4 +72,3 @@ command:
  fi
 user: root
 estimated_duration: 1s
-