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bcc5057ad3
Makes a significant encoding change to existing opcodes and adds several opcodes to allow for encoding the more complicated patterns that we have on the lightbar (S0, etc.) as well as condense the ones we technically could encode but couldn't fit in the 192-byte footprint allotted to us (KONAMI). We need this to remove sequences from the EC code. BUG=chrome-os-partner:32203 BRANCH=ToT TEST=run test programs on hardware and lightbar simulator Signed-off-by: Eric Caruso <ejcaruso@chromium.org> Change-Id: I12fe908d3a43a924aa39f24ad66adbe53f7f38e1 Reviewed-on: https://chromium-review.googlesource.com/222949 Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Bill Richardson <wfrichar@chromium.org>
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().