raiden_debug_spi.c: Add transfer context states

Add context states to handle the read and write buffers as transmit
and receive states. These are used to keep track of the number of
bytes transmitted and received allowing future support of multi-packet
messages in the v2 protocol and easier integration with a unified USB
packet context.

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 <bnemec@chromium.com>
Change-Id: Ic6eea82ffc604ec56278f7aaa0deafe0cf75973c
Reviewed-on: https://review.coreboot.org/c/flashrom/+/41608
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions