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| author | Aseda Aboagye <aaboagye@google.com> | 2019-03-28 10:43:52 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-06-24 20:48:47 +0000 |
| commit | 99de2e458265cf59388b0eec54390b3c3d097624 (patch) | |
| tree | 4306126dd77636ee6226460aa8575830ba9ff96c /common | |
| parent | ddd1266082c7fc4a4002da1383c7052629e2c8f4 (diff) | |
| download | chrome-ec-99de2e458265cf59388b0eec54390b3c3d097624.tar.gz | |
common: pd_policy: Add notification for DP AltMode
This commit simply adds a notification that can be called when the
device enters DisplayPort Alternate mode or a DP attention VDM is
received. Calling the notification will send a MODE_CHANGE host event
which may wake the AP.
BUG=chromium:786721
BRANCH=firmware-nocturne-10984.B
TEST=With other patches, flash nocturne; suspend DUT, plug in powered
charge through hub, verify DUT wakes up.
Change-Id: Iaa221e69060a7d1015f7c1e2f6f053e6810a674a
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1666366
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Auto-Submit: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/usb_pd_policy.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/common/usb_pd_policy.c b/common/usb_pd_policy.c index a64aeaf3a5..d5e0a6e65a 100644 --- a/common/usb_pd_policy.c +++ b/common/usb_pd_policy.c @@ -34,6 +34,23 @@ static int rw_flash_changed = 1; +#ifdef CONFIG_HOSTCMD_EVENTS +void pd_notify_dp_alt_mode_entry(void) +{ + /* + * Note: EC_HOST_EVENT_PD_MCU may be a more appropriate host event to + * send, but we do not send that here because there are other cases + * where we send EC_HOST_EVENT_PD_MCU such as charger insertion or + * removal. Currently, those do not wake the system up, but + * EC_HOST_EVENT_MODE_CHANGE does. If we made the system wake up on + * EC_HOST_EVENT_PD_MCU, we would be turning the internal display on on + * every charger insertion/removal, which is not desired. + */ + CPRINTS("Notifying AP of DP Alt Mode Entry..."); + host_set_single_event(EC_HOST_EVENT_MODE_CHANGE); +} +#endif /* CONFIG_HOSTCMD_EVENTS */ + int pd_check_requested_voltage(uint32_t rdo, const int port) { int max_ma = rdo & 0x3FF; |