diff options
| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2016-03-22 16:09:35 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-04-03 10:27:36 -0700 |
| commit | 33fd731ca10e72664acb20196c2cfb7573e4ae4c (patch) | |
| tree | 881280f00f4a29ba4807b2ddc0b8928298c406b3 /include/charge_manager.h | |
| parent | be731e262cc1061ab6f8b5e648ed7bfc792b681a (diff) | |
| download | chrome-ec-33fd731ca10e72664acb20196c2cfb7573e4ae4c.tar.gz | |
charge_manager: Report UNKNOWN USB charger for 2 seconds after change
After a charger is attached, we may set a charge limit based upon BC1.2
or USB-C Rp before PD negotiation completes. Therefore, allow 2 seconds
for all negotiation to complete. Previously this behavior was implicit
when using SW charge ramp.
BUG=chrome-os-partner:51280
BRANCH=glados
TEST=Manual on chell. Insert stock charger, verify that it is detected
as TYPE_UNKNOWN until timeout.
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I52f02de46fa92b66a9fbaddb94a062310688f028
Reviewed-on: https://chromium-review.googlesource.com/334312
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'include/charge_manager.h')
| -rw-r--r-- | include/charge_manager.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/charge_manager.h b/include/charge_manager.h index a47bf3a4d7..ec0e35a7b1 100644 --- a/include/charge_manager.h +++ b/include/charge_manager.h @@ -17,6 +17,12 @@ #define CHARGE_CURRENT_UNINITIALIZED -1 #define CHARGE_VOLTAGE_UNINITIALIZED -1 +/* + * Time to delay for detecting the charger type (must be long enough for BC1.2 + * driver to get supplier information and notify charge manager). + */ +#define CHARGE_DETECT_DELAY (2*SECOND) + /* Commonly-used charge suppliers listed in no particular order */ enum charge_supplier { CHARGE_SUPPLIER_PD, |