[flashrom-gerrit] Change in flashrom[master]: raiden_debug_spi.c: Adds USB context states and helper functions

[Brian Nemec (Code Review)]

Hello build bot (Jenkins), Brian Nemec, Edward O'Callaghan, Angel Pons,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/43550

to look at the new patch set (#3).

Change subject: raiden_debug_spi.c: Adds USB context states and helper functions
......................................................................

raiden_debug_spi.c: Adds USB context states and helper functions

Adds context states to handle the USB packets, these allow us to
simplify the process of loading data from the transmit buffer
into a USB packets' data section and from a USB packet to it's
receive buffers. These will also keep track of the size of the USB
packet allowing a simpler interface to transmit them.

Helper functions have been added to help with copying data between
the transmit and receive context states to and from the USB packets.

BUG=b:139058552
BRANCH=none
TEST=Manual testing of ServoMicro and Flashrom when performing
    reads, writes, and verification of the EC firmware on Nami.
TEST=Builds

Signed-off-by: Brian J. Nemec 
Change-Id: Id7b598b39923b4b8c1b6905e5d5c5a2be4078f96
---
M raiden_debug_spi.c
1 file changed, 205 insertions(+), 65 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/50/43550/3