libpayload: Increase accuracy of timeout period for media init.

When bringing up media, we claim to wait for up to 30 seconds for a
device to respond to our TEST_UNIT_READY command. Actually, we can wait
far longer because we do not take into account execution delay.

To improve timeout accuracy, make use of gettimeofday(), which calculates
time based upon a CPU counter. This improves the user experience
slightly when certain non-working USB devices are used.

Change-Id: Id9605ecfc0a522d7a0b039fd8eac541232605082
Signed-off-by: Shawn Nematbakhsh <>
Reviewed-by: Julius Werner <>
(cherry picked from commit 1d3d535db83ff478c512e37f37015b43927b3efc)
Signed-off-by: Isaac Christensen <>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <>
Reviewed-by: Ronald G. Minnich <>
1 file changed