At least on Linux, for a device to be considered capable of waking the host up,
it must be a boot keyboard. As we do not (yet) support a boot keyboard, we fake
one. An USB node that does nothing else than report itself as a boot keyboard,
and does the minimum amount of work to get recognised as such.
Because of this, Linux - and hopefully the other OSes too - will consider the
whole device capable of waking up the host.
This addresses keyboardio/Kaleidoscope#237, if all goes well.
Signed-off-by: Gergely Nagy <algernon@keyboard.io>
Add LEDControl.paused, which we use to pause LED mode updates if true (defaults
to false). This is useful when we want to stop LED modes from updating without
switching to another (like when the host goes to sleep, and we want to turn LEDs
off).
Signed-off-by: Gergely Nagy <algernon@keyboard.io>
This doesn't change behaviour at all; it's just a different way to do the computation,
which I think is much clearer. I also added an explanatory comment.
* It's now all bitwise operations, without arithemetic thrown in.
* It uses the same exact formula for finding bits on both sides of the keyboard.
* It saves 14 bytes in program memory.
Instead of hardcoding defaults for `VID`, `SKETCH_PID`, and `BOOTLOADER_PID`,
use `arduino-builder -dump-prefs` to pull these out of `boards.txt`.
Signed-off-by: Gergely Nagy <algernon@keyboard.io>
The boolean wasOn was unnecessary, and there was no need to call
bitSet() (or bitClear(), in the case of Layer.off()) if the test
passed. Mostly, I just added a few explanatory comments.
(Aslo reversed the sense of the on/off test in Layer.on() and .off())
@algernon likes it better this way, and I agree.
`updateActiveLayers()` makes it impossible to turn off the default
layer, so there's no point searching past it for the highest layer,
and `defaultLayer` can be set to numbers higher than zero.
Now that `layer_count` is (potentially) available, we can start
looking for active layers at the top _defined_ layer instead of the
top _possible_ layer. This ought to be more efficient, especially for
sketches that don't have lots of layers defined.
Also introduced the `MAX_LAYERS` constant (#define).