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| author | Vincent Palatin <vpalatin@chromium.org> | 2014-10-16 13:50:09 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-10-17 03:25:20 +0000 |
| commit | 66d75af8776a54ed4905aacc197696a520c8e73b (patch) | |
| tree | 92a0033b0c7fc388ef383155be2ecd11b747d67e | |
| parent | 0a44f240358ae25e0f6d90e520882cdf10c3f231 (diff) | |
| download | chrome-ec-66d75af8776a54ed4905aacc197696a520c8e73b.tar.gz | |
pd: reset the message ID on connection
The message ID counter in our message needs to be reset to 0 on a new
connection.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=samus
BUG=none
TEST=dump the sequence with the USB PD protocol analyzer.
Change-Id: I1bddddf4075fba646b1e8c7886059c4a11e5fec9
Reviewed-on: https://chromium-review.googlesource.com/223759
Reviewed-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
| -rw-r--r-- | common/usb_pd_protocol.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/common/usb_pd_protocol.c b/common/usb_pd_protocol.c index 6c8c8d8ed8..60340767e2 100644 --- a/common/usb_pd_protocol.c +++ b/common/usb_pd_protocol.c @@ -1244,6 +1244,8 @@ void pd_task(void) pd[port].polarity = GET_POLARITY(cc1_volt, cc2_volt); pd_select_polarity(port, pd[port].polarity); + /* reset message ID counter on connection */ + pd[port].msg_id = 0; /* Set to USB SS initially */ #ifdef CONFIG_USBC_SS_MUX board_set_usb_mux(port, TYPEC_MUX_USB, @@ -1391,6 +1393,8 @@ void pd_task(void) cc2_volt); pd_select_polarity(port, pd[port].polarity); + /* reset message ID on connection */ + pd[port].msg_id = 0; set_state(port, PD_STATE_SNK_DISCOVERY); timeout = 10*MSEC; break; |