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This just brings the competely unsupported but occasionally useful lightbar simulation tool up to date with the rest of the source tree so it will compile and run again. BUG=none BRANCH=ToT TEST=manual cd extra make ./lightbar Change-Id: Iafeaaa5ac56a4b711c63d2c64d8c51ab4b324104 Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/213206 Reviewed-by: Randall Spangler <rspangler@chromium.org>
This directory is for experiments only. It is not built automatically, required, supported, guaranteed to work, or necessarily well-documented. The contents may change without warning at any time. ------------------------------------------------------------------------------ Lightbar simulator ------------------------------------------------------------------------------ Build with "make lightbar". The executable is "./lightbar". You may need to install libxcb1-dev or similar. This provides a simulation environment for the lightbar task, compiling common/lightbar.c from the EC source, but faking the rest of the EC. The EC console is on stdin/stdout, delivering all input to the lightbar's console command handler (so it prefixes any input with "lightbar"). The lightbar itself is displayed in an X window. You can click in that window to emulate changes to the battery level, AC connection, and brightness, all of which are normally outside the lightbar task's direct control. The initial sequence is "S5". Try issuing the command "seq s3s0" to see something more familiar. Note: the Pixel lightbar circuitry has three modes of operation: Unpowered When the host CPU is off (S5/G3), all power to the lightbar and its controller circuitry is lost. On When the host CPU is on (S0) or suspended (S3), the lightbar is powered again. After every power loss, it will need to be reinitialized by calling lb_init() before it can be used. Standby The lightbar controller ICs can turn off all the LED outputs to conserve power. This is the initial state when power is applied. You can turn the LEDs off manually by calling lb_off(). When suspended, the controller will respond to commands, but the LEDs aren't lit. Turn them on with lb_on().