Add support for a new IR remote controller

vrabac · April 18, 2017, 9:57am

But the debug code have nothing to do with remote, if you include these debug code in the official ROM then everyone can contribute his scancode. Right now even ti get scancode one need ti compile his own ROM and flash.

zewen · June 28, 2017, 8:06am

Terry:

If you need to map one key of your IR as VOLUME_UP(the Map Key is 115, you can verify the list of Android Map Key)
Modify the file ‘PROJECT/common/arch/arm64/boot/dts/amlogic/mesongxl.dtsi’

@Terry and all:
I git clone kernel source code form khadas github , and modify this file: arch/arm64/boot/dts/amlogic/mesongxl.dtsi, my question is how can I compile for this modify???

I have try :1. make clean ARCH=arm64 && make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- , but it cannot compiled mesongxl.dtsi(I add some error in this file)
2. run this command: make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- kvim.dtb , it can generate arch/arm64/boot/dts/amlogic/kvim.dtb, but I have no idea about how to package it to kernel image(Image)

Terry · June 28, 2017, 2:14pm

What kind of system do you want to test? Ubuntu or Andoird7.1?
You can download the kvim.dtb to your device Load Images with U-Boot via TFTP

zewen · June 29, 2017, 5:51am

Hi @Terry:
It works!
I try it with ubuntu mate
But I wondering if there have any method to package it to kernel image? because this is only for debug mode, thanks!

Terry · June 29, 2017, 10:06am

It hasn’t the method to pack dtb to kernel image because the dtb and kernel is two different partitions. But you can pack the dtb and kernel into final update image.

zewen · June 30, 2017, 2:55am

Hi @Terry:
beacuse dts file is in kernel path, I used to think it would be package into kernel image.
But how can I do this? and I have no ubuntu source code for khadas vim.

Terry · July 3, 2017, 3:34pm

About How to build and pack Ubuntu image,you can refer to the post

hungphutho · January 3, 2018, 3:27am

@Terry help me add wake up key in uboot .
My remote : factory_code = 0xef10 , and scancode power key = 0x5d

define CONFIG_IR_REMOTE_POWER_UP_KEY_VAL1 0XEB14FF00

here will change this value 0xeb5def10 ? , how to make it work?

Terry · January 3, 2018, 6:27am

Firstly, You need to know the 16bit scancode and not 8bit.
What’s the version of your system? Nougat or Mmallow?

On Nougat:
You need to remove your Remote configs in mesongxm.dts(VIM2) or mesongxl.dts(VIM)file.
On Mmallow
You need to remove your Remote configs in remote.conf file

Now, you can see the kernel log when you click your Remote power key.

kvim2:/ $ [  379.901297@1] meson-remote c8100580.rc: invalid custom:0xeb14ff00

Example:

khadas IR power key: factory_code = 0xFF00, scancode = 0xEB14
#define CONFIG_IR_REMOTE_POWER_UP_KEY_VAL1 0XEB14FF00

Socks · January 4, 2018, 2:00pm

Hey I know this is not really related but your post was the best I found to fix my problem. I have a dtb file that I decompiled so I can add my remote and then recompile but I need to know the result of the macro REMOTE_KEY because it doesnt let me compile when I have “keymap = <REMOTE_KEY(0x18,116)>;” I think I need the actual hex value. Can you help me?

Terry · January 5, 2018, 4:29am

You can look at this

github.com

khadas/linux/blob/Nougat/include/dt-bindings/input/input.h

/*
 * This header provides constants for most input bindings.
 *
 * Most input bindings include key code, matrix key code format.
 * In most cases, key code and matrix key code format uses
 * the standard values/macro defined in this header.
 */

#ifndef _DT_BINDINGS_INPUT_INPUT_H
#define _DT_BINDINGS_INPUT_INPUT_H

#define KEY_RESERVED		0
#define KEY_ESC			1
#define KEY_1			2
#define KEY_2			3
#define KEY_3			4
#define KEY_4			5
#define KEY_5			6
#define KEY_6			7
#define KEY_7			8

This file has been truncated. show original

You can define your remote key like this
"keymap = <REMOTE_KEY(0x18,KEY_POWER)>;"

joybee · February 13, 2018, 5:19am

Hello, terry. I am trying this on my VIM2 but cannot make the IR work. I use dmesg to get the IR scancode. I got something like this. I flashed the VIM2_Nougat_V180209 firmware. Any help?
meson-remote c8100580.rc: invalid custom:0xbb44fb04
My IR remote keys show below.
0xe619fb04 V-
0xba45fb04 V+
0xa25dfb04 Menu
0xe01ffb04 Home
0xf50afb04 Return
0xe41bfb04 Mouse
0xbb44fb04 UP
0xe21dfb04 DOWN
0xe31cfb04 LEFT
0xb748fb04 RIGHT
0xa35cfb04 OK
0xec13fb04 1
0xef10fb04 2
0xee11fb04 3
0xf00ffb04 4
0xf30cfb04 5
0xf20dfb04 6
0xf40bfb04 7
0xf708fb04 8
0xf609fb04 9
0xb847fb04 0
0xac53fb04 SETTING
0xe51afb04 POWER

Terry · February 13, 2018, 1:48pm

The dts file for VIM is ‘PROJECT/common/arch/arm64/boot/dts/amlogic/mesongxl.dtsi’, but VIM2 is 'PROJECT/common/arch/arm64/boot/dts/amlogic/mesongxm.dtsi’
Have a try again. Thanks.

salehdeh76 · August 9, 2018, 1:16pm

Hi @Terry . Can we use remote.conf file on nougat? I think that has more options than device-tree. For example defining (repeat-key) is a nice option which I don’t know how to configure via device-tree.

(my device now has no repeat function so a bad UX. When you hold right key it only moves one step!)
Thanks.

salehdeh76 · August 10, 2018, 7:20am

Hello
Everyone can easily derive 16 bit scancode by logic inverting the 8 bit and prepend to it. Note 0xEB is inverse of 0x14 !
See amlogic doc for remote at : http://openlinux.amlogic.com/@api/deki/files/81/=How_to_change_the_IR_for_Mbox.pdf

Sifonije · June 22, 2020, 2:31pm

Hi, is there maybe a file on the VIM’s filesystem where I could just edit the Khadas remote IR codes and actions? I have a remote with the NEC protocol (the same as Khadas remote) which I’d like to use.
Thanks

Sifonije · June 22, 2020, 2:55pm

I’ve found some codes in files /vendor/etc/remote.tab1,2,3
Any use in editing those?
thanks!

Poida · December 4, 2020, 5:53pm

If, like me, you don’t want to recompile the complete rom you can extract dtb.img from update.img and convert it to a text file. From there, edit the map_0 data, found after rc@0xff808040, convert back to dtb.img and replace into update.img or add to update.zip and re-sign. there are many free tools available to assist in doing this.

yossi · December 13, 2021, 9:23am

Hi @Terry can block remote input under certain conditions? example using property_get() to save the condition.

Thank you

taimed · October 20, 2022, 9:27am

can anyone help with this ? I am facing the exact same issue