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| author | Scott <scollyer@chromium.org> | 2015-07-30 15:10:11 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-08-21 08:10:03 +0000 |
| commit | d862dd05982198a2f5d450820a02172e0ba6396b (patch) | |
| tree | c9c96e5ea91537a3aae99370952eb2a13156a1af /driver/tcpm/stub.c | |
| parent | 646760bb20fde94683d3be2fa4b046d47933d85f (diff) | |
| download | chrome-ec-d862dd05982198a2f5d450820a02172e0ba6396b.tar.gz | |
pd: Enable detection of VBUS via the TCPM/TCPCI interface
Modified TCPC layer to utilize the Power_Status and Power_Status_Mask
registers. VBUS status is stored in Power_Status and when a change
is detected, it's communicated to the TCPM via the ALERT# line.
BUG=chrome-os-partner:43440
BRANCH=none
TEST=Tested the feature on Glados and Oak connecting to both Ziger
and Samus. Verfied that VBUS status is communicated via the TCPCI and
that PD contracts are established without using the VBUS_WAKE GPIO
lines on Glados and Oak.
Change-Id: Ie5aa32eecc887f3cb00880a285f1e710b7064384
Signed-off-by: Scott Collyer <scollyer@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/289931
Reviewed-by: Rong Chang <rongchang@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Rong Chang <rongchang@chromium.org>
Tested-by: Rong Chang <rongchang@chromium.org>
Diffstat (limited to 'driver/tcpm/stub.c')
| -rw-r--r-- | driver/tcpm/stub.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/driver/tcpm/stub.c b/driver/tcpm/stub.c index 444730fc18..35f0329484 100644 --- a/driver/tcpm/stub.c +++ b/driver/tcpm/stub.c @@ -16,6 +16,7 @@ extern int tcpc_alert_mask_set(int port, uint16_t mask); extern int tcpc_get_cc(int port, int *cc1, int *cc2); extern int tcpc_set_cc(int port, int pull); extern int tcpc_set_polarity(int port, int polarity); +extern int tcpc_set_power_status_mask(int port, uint8_t mask); extern int tcpc_set_vconn(int port, int enable); extern int tcpc_set_msg_header(int port, int power_role, int data_role); extern int tcpc_set_rx_enable(int port, int enable); @@ -63,6 +64,11 @@ int tcpm_set_polarity(int port, int polarity) return tcpc_set_polarity(port, polarity); } +int tcpm_set_power_status_mask(int port, uint8_t mask) +{ + return tcpc_set_power_status_mask(port, mask); +} + int tcpm_set_vconn(int port, int enable) { return tcpc_set_vconn(port, enable); |