mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-10 17:41:54 +00:00
520bd3f6ad
Current usb_wake was sleeping between setting and clearing RESUME bit, which is unprecise. Instead, we count ESOF interrupts in usb_interrupt to detect when to clear RESUME. It is also important that usb_wake does not block, as the calling task (e.g. keyboard scanning) must continue to service events while the USB device is resuming. BRANCH=none BUG=b:35587173 TEST=Connect hammer, force autosuspend using: DEVICE=$(dirname $(grep 5022 /sys/bus/usb/devices/*/idProduct)) echo 500 > $DEVICE/power/autosuspend_delay_ms echo auto > $DEVICE/power/control Wait a second, type something quickly, verify that no keys are lost. Change-Id: I53b46cce5a4adb0ee4c4a7e9f935c00f7f321636 Reviewed-on: https://chromium-review.googlesource.com/490129 Commit-Ready: Nicolas Boichat <drinkcat@chromium.org> Tested-by: Nicolas Boichat <drinkcat@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly