2024-09-09 08:57:42 +00:00
|
|
|
Test:Bus Timeout Documentation
|
2024-09-09 08:52:07 +00:00
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
Usage: bus_timeout_test.sh [-c | --camera-timeout] [ -u | --usb-timeout]
|
|
|
|
|
[-p | --pc-save] [-h | --help]
|
2024-09-09 08:52:07 +00:00
|
|
|
|
2024-09-09 08:57:42 +00:00
|
|
|
OPTIONS:
|
|
|
|
|
The following options can be used:
|
|
|
|
|
-c | --camera-timeout trigger a camera bus timeout
|
|
|
|
|
-u | --usb-timeout trigger a usb bus timeout
|
|
|
|
|
-p | --pc-save trigger a sec wdog bite which will save the last
|
|
|
|
|
executing instruction.
|
2024-09-09 08:52:07 +00:00
|
|
|
|
|
|
|
|
TEST BEHAVIOR: Force a bus hang. If successful, the target will be reset by
|
|
|
|
|
the watchdog. The kernel will panic on a failure. Returning back to the command
|
|
|
|
|
prompt is also considered a failure.
|
|
|
|
|
|
|
|
|
|
LIMITATIONS: In order for the test to run correctly, clocks must be off.
|
|
|
|
|
Unfortunately, there is no guarantee with the public clock APIs that the
|
|
|
|
|
clock will actually be off after one clk_disable call. The easiest way
|
|
|
|
|
to guarantee that the disable will actually work is to make sure the
|
|
|
|
|
system is not using the required clocks.
|
|
|
|
|
|
|
|
|
|
For this module, the camera must not be on while attempting to do the
|
2024-09-09 08:57:42 +00:00
|
|
|
test since the camera registers are used for testing. The usb cable
|
|
|
|
|
must not be plugged in while attempting to do the usb timeout test.
|
