diff options
| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2017-10-05 09:50:08 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-10-06 13:47:12 -0700 |
| commit | b87fe062eca43fc00909098e716581bf2aeea7eb (patch) | |
| tree | 890225b40bf562456984424adc1f243fb06ae7eb /driver/bc12/pi3usb9281.c | |
| parent | 02045eb040227250689caec9b9401c2cd3861363 (diff) | |
| download | chrome-ec-b87fe062eca43fc00909098e716581bf2aeea7eb.tar.gz | |
charge_ramp: Move ramp allowed / ilim callbacks to common code
The decision on whether to ramp (and how high) depends on the quirks of
charger identification, so move the decision out of board, into the
drivers that implement usb_charger.
Also, rename CONFIG_CHARGE_RAMP to CONFIG_CHARGE_RAMP_SW, to better
contrast with the existing CONFIG_CHARGE_RAMP_HW.
BUG=None
TEST=Manual on kevin, verify ramp occurs when port plugged into Z840
workstation.
BRANCH=None
Change-Id: I5b395274133837a18a4f4ac34b59b623287be175
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/702681
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'driver/bc12/pi3usb9281.c')
| -rw-r--r-- | driver/bc12/pi3usb9281.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/driver/bc12/pi3usb9281.c b/driver/bc12/pi3usb9281.c index 88f40778b8..d89021e53c 100644 --- a/driver/bc12/pi3usb9281.c +++ b/driver/bc12/pi3usb9281.c @@ -431,3 +431,28 @@ void usb_charger_task(void *u) } } } + +#if defined(CONFIG_CHARGE_RAMP_SW) || defined(CONFIG_CHARGE_RAMP_HW) +int usb_charger_ramp_allowed(int supplier) +{ + return supplier == CHARGE_SUPPLIER_BC12_DCP || + supplier == CHARGE_SUPPLIER_BC12_SDP || + supplier == CHARGE_SUPPLIER_BC12_CDP || + supplier == CHARGE_SUPPLIER_PROPRIETARY; +} + +int usb_charger_ramp_max(int supplier, int sup_curr) +{ + switch (supplier) { + case CHARGE_SUPPLIER_BC12_DCP: + return 2000; + case CHARGE_SUPPLIER_BC12_SDP: + return 1000; + case CHARGE_SUPPLIER_BC12_CDP: + case CHARGE_SUPPLIER_PROPRIETARY: + return sup_curr; + default: + return 500; + } +} +#endif /* CONFIG_CHARGE_RAMP_SW || CONFIG_CHARGE_RAMP_HW */ |