With only four LED segments, it's confusing to indicate a power
percentage by dimming the top segment unless you can see the
indicator smoothly ramping up from all-off. This does that.
Kind of pretty, if I say so myself.
BUG=chrome-os-partner:29041
BRANCH=ToT, Samus
TEST=make buildall
Run "ectool lightbar demo on", then press the T key to invoke the
pattern and the arrow keys to fake the charge state.
Change-Id: Ib6a56aea56078b8c1fc9edddda469d7f41735ff7
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/223300
Reviewed-by: Alec Berg <alecaberg@chromium.org>
This prepends EC_ a macro exposed in ec_commands.h, moves a
macro into lbcc that is not used elsewhere, and changes lb_program
structs to lightbar_program.
BUG=None
BRANCH=ToT
TEST=make buildall -j
Change-Id: I481562da72d91f846c64cf9af40338027641462c
Signed-off-by: Eric Caruso <ejcaruso@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/222406
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
This diff allows the user to send small programs to the EC and
gain control of the lightbar. Right now, this is only exposed
through ectool, and sysfs support will come later.
To send a program to the EC, use
$ ectool lightbar program /path/to/program.bin
and then start running the program with
$ ectool lightbar seq program
BUG=None
BRANCH=ToT
TEST=Using the above steps with hand-assembled programs.
Checked that infinite bytecode loops do not hang the EC.
Checked that bad opcodes exit with an error.
Stress tested pushing programs and changing sequences.
Signed-off-by: Eric Caruso <ejcaruso@chromium.org>
Change-Id: I635fb041a5dc5c403f7c26fb9a41b5563be9b6b7
Reviewed-on: https://chromium-review.googlesource.com/219558
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
