mpsse: Defer errors until flush 99/1499/3
authorAndreas Fritiofson <andreas.fritiofson@gmail.com>
Wed, 10 Jul 2013 17:06:29 +0000 (19:06 +0200)
committerSpencer Oliver <spen@spen-soft.co.uk>
Thu, 1 Aug 2013 10:31:08 +0000 (10:31 +0000)
commitc979a08144ddea266fbf626182b5a06ad90e9ea8
tree9d5f8ba5a040913080351249feb918988d60d5a1
parent1018e1e4c80f7e02cb0cd3c7e9d2f3f22feb74e8
mpsse: Defer errors until flush

Simplify the API by making all MPSSE command functions return void instead
of an error code. If there is an error during an implicit flush in a
command call, further commands are ignored until an explicit flush is
performed. The flush function returns and clears any error code set.

The only command functions that still return an error code are those that
can fail directly based on the type of the FTDI chip, i.e. when trying to
enable RCLK or divide-by-5 on a non-high-speed chip.

Adapt the ftdi adapter driver to the new API.

Change-Id: I12979c723c81f7fd022c25821b029112f02b3f95
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1499
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
src/jtag/drivers/ftdi.c
src/jtag/drivers/mpsse.c
src/jtag/drivers/mpsse.h