mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-27 18:25:05 +00:00
e541eeb294
Do not allow rescheduling tasks if task_start() has not been called. This fixes a bug in which if console input occurs between uart_init() and task_start(), the MCU crashes because uart_init() enables uart interrupts which attempts to wake up the console task when RX data is received, which then tries to task switch before we initialized task scheduling. BUG=chrome-os-partner:32561 BRANCH=samus TEST=add while(1) loop to adc_init() to simulate stalled ADC initialization. When stalled, send console character and observe that without this CL MCU crashes, and with this CL the MCU does not crash. Change-Id: I34418e88ebe0063acf1cc55ab5a57b5fddcd9d23 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/221599 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