BananaPi R1, no infrared device

semenaa · December 2, 2015

Hello. I'm having trouble with infrared receiver. Whether the sunxi_cir driver installed in kernel or not, there is nothing in /dev/input except "event0", which is the power controller. Dmesg doesn't show anything neither.

Version: Armbian 4.5 Lamobo-r1 Debian jessie next (unofficial), kernel 4.2.3.

IR support was declared on download web page, so I decided to get vanilla kernel. That's because I had already tried Bananian with 3.18 kernel, and there were huge problems with kernel ppp (up to freezes of whole device).

Has anybody encountered this problem?

zador.blood.stained · December 2, 2015

I'm using IR receiver with mainline kernel, but as raw LIRC device (/dev/lirc0), not via devinput driver. However I do have input devices created by IR module.

Please load these modules

sunxi_cir
lirc_dev
ir_lirc_codec

and post output of these commands:

dmesg | grep sunxi-ir
dmesg | grep lirc
cat /proc/bus/input/devices
lsmod

semenaa · December 2, 2015

dmesg | grep sunxi-ir

shows nothing.

 % dmesg | grep lirc
[250575.979154] lirc_dev: IR Remote Control driver registered, major 248

 % cat /proc/bus/input/devices
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="axp20x-pek"
P: Phys=m1kbd/input2
S: Sysfs=/devices/platform/soc@01c00000/1c2ac00.i2c/i2c-0/0-0034/axp20x-pek/input/input0
U: Uniq=
H: Handlers=kbd event0 
B: PROP=0
B: EV=3
B: KEY=100000 0 0 0

see? there's only the power controller.

 % lsmod
Module                  Size  Used by
ir_lirc_codec           4287  0 
lirc_dev                7734  1 ir_lirc_codec
sunxi_cir               3735  0 
xt_TCPMSS               3026  1 
xt_tcpudp               2077  1 
iptable_mangle          1390  1 
ipt_MASQUERADE          1019  1 
nf_nat_masquerade_ipv4     1817  1 ipt_MASQUERADE
iptable_nat             1469  1 
nf_conntrack_ipv4       6729  1 
nf_defrag_ipv4          1300  1 nf_conntrack_ipv4
nf_nat_ipv4             4352  1 iptable_nat
nf_nat                 10937  2 nf_nat_ipv4,nf_nat_masquerade_ipv4
nf_conntrack           68650  4 nf_nat,nf_nat_ipv4,nf_nat_masquerade_ipv4,nf_conntrack_ipv4
ip_tables              11101  2 iptable_mangle,iptable_nat
x_tables               10666  5 ip_tables,xt_tcpudp,ipt_MASQUERADE,xt_TCPMSS,iptable_mangle
l2tp_ppp               15625  4 
l2tp_netlink            7667  1 l2tp_ppp
l2tp_core              15168  2 l2tp_ppp,l2tp_netlink
ip6_udp_tunnel          1514  1 l2tp_core
udp_tunnel              1527  1 l2tp_core
bnep                    9700  2 
bluetooth             295282  5 bnep
brcmfmac              159174  0 
brcmutil                4893  1 brcmfmac
rtl8192cu              88371  0 
rtl_usb                11860  1 rtl8192cu
rtl8192c_common        55558  1 rtl8192cu
rtlwifi                80197  3 rtl_usb,rtl8192c_common,rtl8192cu
mac80211              353201  3 rtl_usb,rtlwifi,rtl8192cu
evdev                   9492  1 
dwmac_sunxi             2111  0 
sun4i_ts                3926  0 
sg                     21882  0

I already had added the sunxi_cir module in /etc/modules and rebooted couple times.

Edited February 26, 2016 by wildcat_paris
the spoiler maniac has updated the message

zador.blood.stained · December 2, 2015

Hm. Then what is output of

cat /proc/device-tree/model
cat /proc/device-tree/soc@01c00000/ir@01c21800/status

Maybe IR node is not enabled in device tree or wrong dtb is loaded?

semenaa · December 2, 2015

 % cat /proc/device-tree/model
Lamobo R1

however:

 % cat /proc/device-tree/soc@01c00000/ir@01c21800/status
disabled

there is another one:

 cat /proc/device-tree/soc@01c00000/ir@01c21c00/status
disabled

what should I do?

zador.blood.stained · December 2, 2015

You should recompile /boot/dtb/sun7i-a20-lamobo-r1.dtb, changing "disabled" to "okay".

		ir@01c21800 {
			compatible = "allwinner,sun4i-a10-ir";
			clocks = <0x29 0x6 0x2a>;
			clock-names = "apb", "ir";
			interrupts = <0x0 0x5 0x4>;
			reg = <0x1c21800 0x40>;
			status = "disabled";
		};

Use this post as example: http://forum.armbian.com/index.php/topic/382-armbian-on-pcduino3/#entry2444

Edit: you also need to add pinctrl values and ir0_rx_pins_a label:

		ir@01c21800 {
			compatible = "allwinner,sun4i-a10-ir";
			clocks = <0x29 0x6 0x2a>;
			clock-names = "apb", "ir";
			interrupts = <0x0 0x5 0x4>;
			reg = <0x1c21800 0x40>;
			status = "okay";
			pinctrl-names = "default";
			pinctrl-0 = <&ir0_rx_pins_a>;
		};

	ir0_rx_pins_a: ir0@0 {
				allwinner,pins = "PB4";
				allwinner,function = "ir0";
				allwinner,drive = <0x0>;
				allwinner,pull = <0x0>;
				linux,phandle = <0x33>;
				phandle = <0x33>;
			};

semenaa · December 2, 2015

Thanks. I just tried your dtb file, and now:

cat /proc/device-tree/soc@01c00000/ir@01c21800/status
okay

dmesg shows this:

[    8.681762] /soc@01c00000/ir@01c21800: could not get #clock-cells for /soc@01c00000/pinctrl@01c20800/uart3@1
[    8.681794] ERROR: could not get clock /soc@01c00000/ir@01c21800:apb(0)
[    8.681850] sunxi-ir 1c21800.ir: failed to get a apb clock.
[    8.681906] sunxi-ir: probe of 1c21800.ir failed with error -2

take note that the source of messages is sunxi-ir somehow.

zador.blood.stained · December 2, 2015

Sorry, I copypasted block from other file and didn't notice it has different values

sun7i-a20-lamobo-r1.tar

semenaa · December 2, 2015

Thanks. Now it shows devices in /dev/input, however I can not see anything from my RC though evtest. Can this be connected with settings in the dtb file? Anyway, I have to go now, thanks a lot for your help, will continue to work tomorrow, maybe.

zador.blood.stained · December 2, 2015

First, test your receiver with irrecord, something like this (load lirc modules from message #2 in this topic):

sudo irrecord -d /dev/lirc0 /tmp/remote.conf

If dots are appearing when you start to learn, then Device Tree settings are correct.

Next thing you need to check - if you want to use devinput, you should probably ~~load kernel keymap decoder~~ (Edit: no need, they are built-in) and configure input device to use it. Check

cat /sys/class/rc/rc0/protocols

for list of available and selected (in brackets) protocols, try selecting protocol with

sudo sh -c "echo nec > /sys/class/rc/rc0/protocols"

or something like this.

Edit 2: Or install ir-keytable

semenaa · December 3, 2015

Thank you very much, it works. Now I also read through the LIRC documentation and things get much clearer. The only question I have is why there was wrong dtb file. Guess it happens with small community distributions like this. Anyway, thanks again.

Rui Ribeiro · December 9, 2015

Hi,

I tried to follow those steps with the last armbian, and when doing

sudo dtc -I dts -O dtb sun7i-a20-lamobo-r1.dts -o /boot/sun7i-a20-lamobo-r1.dtb

I got the error:

ERROR (explicit_phandles): /gmac-3v3 has duplicated phandle 0x33 (seen before at /soc@01c00000/ir0@0)

ERROR: Input tree has errors, aborting (use -f to force output)

What can I do about it?

It seems this block is already using phandle 0x33

gmac-3v3 {

compatible = "regulator-fixed";

pinctrl-names = "default";

pinctrl-0 = <0x39>;

regulator-name = "gmac-3v3";

regulator-min-microvolt = <0x325aa0>;

regulator-max-microvolt = <0x325aa0>;

startup-delay-us = <0x186a0>;

enable-active-high;

gpio = <0x1c 0x7 0x17 0x0>;

linux,phandle = <0x33>;

phandle = <0x33>;

};

zador.blood.stained · December 9, 2015

You don't need to add whole block, just append label before one that already exists

ir0_rx_pins_a:

Edit: since it's impossible to change font inside code blocks, I marked parameters that should be added or changed:

dobriloff · February 21, 2016

Hello I have the same issue with Infrared on BananaPi R1.

My device was installed with Armbian_5.00_Lamobo-r1_Debian_jessie_4.4.1

This is the output from commands:

cat /proc/device-tree/model
Lamobo R1

cat /proc/device-tree/soc@01c00000/ir@01c21800/status

disabled

I try to modify /boot/dtb/sun7i-a20-lamobo-r1.dtb to proposed above value but , it's still not working.

I try to check again the value in /boot/dtb/sun7i-a20-bananapi-r1.dtb and I saw two value are changed strange

pinctrl-0 = <0x2d>; it was pinctrl-0 = <&ir0_rx_pins_a>;

vabel ir0_rx_pins_a missing on ir0@0

It looks dtc program change the values.

This is the way how I convert the file.

dtc -I dtb -O dts /boot/dtb/sun7i-a20-bananapi-r1.dtb -o /tmp/temp.dts

vi /tmp/temp.dts

dtc -I dts -O dtb /tmp/temp.dts -o /boot/dtb/sun7i-a20-bananapi-r1.dtb

Additionally I have IR LED transmitter which I intent to connect to some of GPIO , can you help me with that too. I saw in release history , that the image have support for that but I cannot find the module.

added LIRC GPIO receive and send driver for legacy Allwinner

Igor · February 21, 2016

LED transmitter driver is working only on kernel 3.4.x , all other info is provided in the link you posted here.

dobriloff · February 21, 2016

Hello Igor,

Thank you for quick answer , now I'll download Armbian_5.00_Lamobo-r1_Debian_jessie_3.4.110 image.

Can you advice me about the way to start transmitter ? Walking around in Internet , I found only posts about lirc_rpi module where I can set options like modprobe lirc_rpi gpio_in_pin=23 gpio_out_pin=16.

I mean after I connect IR LED , for example to physical pin 10 which is gpio 16 , how to became operational in LIRC , irsend . Until now I make tests few days in Bananian but I get error: hardware does not support sending

added LIRC GPIO receive and send driver for legacy Allwinner -- Was my reason to switch to armbian , because I need to send IR signals to few devices.

dobriloff · February 21, 2016

Now I saw there are module lirc_gpio which have desired options for pin. How I can get pin number of embedded IR receiver.

erpomata · May 7, 2016

Hello
I'm trying to activate the IR receiver, but when I try to re convert the dts I have this error:

ERROR (explicit_phandles): / soc @ 01c00000 / IR0 @ 0 has duplicated phandle 0x33 (seen before at / soc @ 01c00000 / pinctrl @ 01c20800 / i2c0 @ 0)
ERROR (explicit_phandles): / soc @ 01c00000 / IR0 @ 0 has duplicated phandle 0x33 (seen before at / soc @ 01c00000 / pinctrl @ 01c20800 / i2c0 @ 0)
ERROR: Input tree has errors, aborting (use -f to force output)

I try to use the -f option?

My kernel is 4.5.2-SunXi (SMP) armv7l

Thank you

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BananaPi R1, no infrared device

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