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pd: add data role to pd message header

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Added data role bit to PD message header. The data role
is currently tied to power role: source = DFP, sink = UFP.

BUG=none
BRANCH=samus
TEST=tested with third part protocol analyzer

Change-Id: Ic56ea92899d20013aace108cee794d10c3780364
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/224178
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Alec Berg
2014-10-17 15:45:19 -07:00
committed by chrome-internal-fetch
parent 959dcf9854
commit 5d76ffc62d
1 changed files with 3 additions and 1 deletions
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4
include/usb_pd.h
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@@ -491,9 +491,11 @@ enum pd_data_msg_type {
#define PD_ROLE_SOURCE 1
/* build message header */
/* TODO(crosbug.com/p/28343): need to seperate data role from power role */
#define PD_HEADER(type, role, id, cnt) \
((type) | (PD_REV20 << 6) | \
((role) << 8) | ((id) << 9) | ((cnt) << 12) | \
((role) << 5) | ((role) << 8) | \
((id) << 9) | ((cnt) << 12) | \
PD_BMC_SUPPORTED)
#define PD_HEADER_CNT(header) (((header) >> 12) & 7)