diff options
| author | Ting Shen <phoenixshen@chromium.org> | 2019-09-10 17:58:16 +0000 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-10-01 12:52:59 +0000 |
| commit | 2d592c8b467b99061dad3f0b7552bc4b184f444a (patch) | |
| tree | 077c4b0d73fd187c20738e8233ca7d1cd564f211 /include/battery.h | |
| parent | 1db81be6d747c8c90ddb3f1e93dadc230506b859 (diff) | |
| download | chrome-ec-2d592c8b467b99061dad3f0b7552bc4b184f444a.tar.gz | |
battery: add precharge voltage
Add a precharge_voltage field to batt_info in case we need its value
differ from voltage_min, and set precharge_voltage = 3.4V according to
battery spec.
BUG=b:139012899
TEST=observe the charging curve (see issue link above for test result)
BRANCH=master
Change-Id: I2e4b240a12cd023ed90aaeda922e10b262508624
Signed-off-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1795491
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Diffstat (limited to 'include/battery.h')
| -rw-r--r-- | include/battery.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/battery.h b/include/battery.h index 85f8f2cc2b..7052e2d663 100644 --- a/include/battery.h +++ b/include/battery.h @@ -125,11 +125,17 @@ int battery_get_avg_voltage(void); /* in mV */ /* Battery constants */ struct battery_info { - /* Design voltage in mV */ + /* Operation voltage in mV */ int voltage_max; int voltage_normal; int voltage_min; /* (TODO(chromium:756700): add desired_charging_current */ + /** + * Pre-charge to fast charge threshold in mV, + * default to voltage_min if not specified. + * This option is only available on isl923x and rt946x. + */ + int precharge_voltage; /* Pre-charge current in mA */ int precharge_current; /* Working temperature ranges in degrees C */ |