Hi Marek,
Thank you for the patch set.
You seem to touch here two areas that were being discussed throughout
last months, but with no final effect so far:
1) hw trigger
2) multi color LED support
Regarding 1) you can refer to the thread [0] for a reference.
And we'd need more information on how this hardware trigger
works, e.g. whether its blinking rate is configurable.
Regarding 2) I think it would be best to consult Dan Murphy as he
was working on this few weeks ago. Cc Dan.
Best regards,
Jacek Anaszewski
On 3/21/19 7:21 PM, Marek Behún wrote:
This adds proper kernel support for the 8 RGB LEDs on the front panel
of CZ.NIC's Turris 1.x router.
The LEDs are controlled by a CPLD device which manages the whole router.
This CPLD controls the LEDs with PWMs and exposes to CPU these functions
via memory mapped registers:
- enabling/disabling each RGB LED
- for every LED (*) separately setting brightness for the R, G, and B
color channel (and also reading this values)
- setting/getting current global intensity level (there are 8 levels
and the level can also be changed by pressing a button on the back
side of the router)
- setting/getting the intensity of each global intensity level
- enabling/disabling HW trigger for each LED
- changing WIFI LED to STATUS LED and back (in the sense of HW trigger)
(*) The colors of the LAN LEDs, LAN1-LAN5, are controlled together. These
LEDs cannot have different colors.
[...]
[0] https://lkml.org/lkml/2019/2/16/113
