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+---- Thread: HDMI CEC (/showthread.php?tid=2021)
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HDMI CEC - ayufan - 08-14-2016
I did find out this thread: http://forum.armbian.com/index.php/topic/1407-wiphdmi-cec-driver-for-h3/
It implements HDMI CEC driver for Allwinner H3 which appears to be very similar to Allwinner A64.
I tried to compile that and I even started receiving some messages from my TV.
I was unable to send anything, but maybe someone is willing to try this two branches and fix it themselves:
https://github.com/ayufan-pine64/build-pine64-image
https://github.com/ayufan-pine64/linux-pine64
You have to compile Linux kernel, compile .dts and patch libcec with this patch: http://sunxi.das-eckchen.de/sunxi_libcec.patch.
When you `modprobe hdmi_cec` you should start seeing something on `dmesg` and when execute `cec-client`.
RE: HDMI CEC - ayufan - 08-15-2016
I managed to advertise HDMI-CEC from Pine and run cec-client.
Yay!
```
CEC bus information
===================
device #0: TV
address: 0.0.0.0
active source: no
vendor: Samsung
osd string: TV
CEC version: 1.3a
power status: on
language: eng
device #1: Recorder 1
address: 2.0.0.0
active source: yes
vendor: Pulse Eight
osd string: CECTester
CEC version: 1.4
power status: on
language: eng
```
RE: HDMI CEC - ayufan - 08-15-2016
I can receive keys from my TV.
RE: HDMI CEC - ayufan - 08-15-2016
The next step would be to write Android Driver for HDMI CEC: http://androidxref.com/5.1.1_r6/xref/hardware/libhardware/include/hardware/hdmi_cec.h
RE: HDMI CEC - ayufan - 08-15-2016
I wrote really simple driver which implements Android HDMI-CEC controller: https://github.com/ayufan-pine64/android-hdmi-cec-sunxi
I did not yet have a time to test it.
RE: HDMI CEC - rakib-hasan - 08-17-2016
Great Work! Please let us know how it works. Is there anyway to add it to the currently available android images?
RE: HDMI CEC - ayufan - 08-18-2016
Ideally new images has to be built. It's somehow possible to patch existing installations.
RE: HDMI CEC - ayufan - 08-22-2016
I did load CEC kernel driver on Pine A64 linux.
RE: HDMI CEC - Ghost - 08-22-2016
(08-22-2016, 01:25 PM)ayufan Wrote: I did load CEC kernel driver on Pine A64 linux.
Nice one! Perhaps you can help in getting this functionality implemented in a future OS build?
RE: HDMI CEC - ayufan - 08-22-2016
My Android HW driver does work. System does connect with TV. Trying now to see if I can control system from TV.
I also did manage to modify existing Android installation, instead of compiling the full fledged system. Still having a full system image seems to be better choice.
I can control my TV from Android. However, there's a big delay in controls, but it does work.