tree dd8ff0f4846f741f85d58af6b553ef690c453f87
parent f4925168c86e5f2c514e478af9f413eb855d663d
author Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> 1284676465 +0000
committer Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> 1284676465 +0000

Handle Bus Pirates already in bit banging mode correctly

Thanks to Johannes Sjölund for reporting that the Bus Pirate init could
not deal with a Bus Pirate which is already in binary Bitbang mode.

This is caused by a combination of the slowness of the Bus Pirate, the
slowness of USB and a fast serial port flush routine which just flushes
the buffer contents and does not wait until data arrival stops.

Make the Bus Pirate init more robust by running the flush command 10
times with 1.5 ms delay in between.

This code development was sponsored by Mattias Mattsson. Thanks! Tested
a few dozen times, should work reliably.

Corresponding to flashrom svn r1178.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Mattias Mattsson <vitplister@gmail.com>