diff options
| author | Diana Z <dzigterman@chromium.org> | 2021-02-04 15:02:01 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-02-05 17:52:51 +0000 |
| commit | 8ef0b2b959ef21d66ca450a31f633fc1f9dfd32f (patch) | |
| tree | 524366b09bfbed4e682320c3291c930f46855b0d | |
| parent | 2d27870678b8ce10485a1f0d927f259bb1ddcec0 (diff) | |
| download | chrome-ec-8ef0b2b959ef21d66ca450a31f633fc1f9dfd32f.tar.gz | |
TCPMv2: Check for discard in cable reset state
Check for message discard and restore DPM request if cable soft reset
doesn't send, then return to Ready to handle the incoming message.
BRANCH=None
BUG=None
TEST=connect Magolor and Madoo together repeatedly and observe the
connection is able to stabilize
Signed-off-by: Diana Z <dzigterman@chromium.org>
Change-Id: I28787f802a8279d318170a304e5aeac6abb03b75
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2676925
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
| -rw-r--r-- | common/usbc/usb_pe_drp_sm.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/common/usbc/usb_pe_drp_sm.c b/common/usbc/usb_pe_drp_sm.c index ec94201e78..dbc6bbfe2d 100644 --- a/common/usbc/usb_pe_drp_sm.c +++ b/common/usbc/usb_pe_drp_sm.c @@ -6384,21 +6384,19 @@ static void pe_vcs_cbl_send_soft_reset_entry(int port) } send_ctrl_msg(port, TCPC_TX_SOP_PRIME, PD_CTRL_SOFT_RESET); - pe[port].sender_response_timer = TIMER_DISABLED; + pe_sender_response_msg_entry(port); } static void pe_vcs_cbl_send_soft_reset_run(int port) { bool cable_soft_reset_complete = false; + enum pe_msg_check msg_check; - if (PE_CHK_FLAG(port, PE_FLAGS_TX_COMPLETE)) { - PE_CLR_FLAG(port, PE_FLAGS_TX_COMPLETE); - pe[port].sender_response_timer = get_time().val + - PD_T_SENDER_RESPONSE; - } + msg_check = pe_sender_response_msg_run(port); /* Got ACCEPT or REJECT from Cable Plug */ - if (PE_CHK_FLAG(port, PE_FLAGS_MSG_RECEIVED)) { + if ((msg_check & PE_MSG_SENT) && + PE_CHK_FLAG(port, PE_FLAGS_MSG_RECEIVED)) { PE_CLR_FLAG(port, PE_FLAGS_MSG_RECEIVED); cable_soft_reset_complete = true; @@ -6426,7 +6424,8 @@ static void pe_vcs_cbl_send_soft_reset_run(int port) } if (cable_soft_reset_complete || - get_time().val > pe[port].sender_response_timer) { + get_time().val > pe[port].sender_response_timer || + (msg_check & PE_MSG_DISCARDED)) { if (pe_is_explicit_contract(port)) { /* Return to PE_{SRC,SNK}_Ready state */ pe_set_ready_state(port); |