How to find channel no. related to audio injector octo sound card

[namanorai]

Hello

I am using audio injector octo sound card but I am not able to identify particular channel no.....Please tell me..

When I run command multiple time in terminal then it's output channel automatically change and give audio with different channel.........how to control it ?

[flatmax]

Hi there,

How are you running your commands from the command line ?


thanks
Matt

[Dloranger]

I am seeing something similar, along with intermittent detection of the card between boots. Note during these tests the hardware is sitting in isolation on my backplane board with the scope attached. Nothing is disturbing the hardware in any way except reboots are done via command line and power cycles are done via killing the DC supply. I have checked the signals and everything is nice clean digital pulses coming from the pi

I am testing using the latest distro via apt-get update & apt-get upgrade (effective Mar 1, 2018).

I am using a customized version of the driver as discussed via email, where the clocks are never disabled. I don't expect this to be relevant, but just in case

The command I am running to test is

speaker-test -c 8 -t sine -f 500

I am measuring what I consider channel 0 with an oscilloscope in the below tests

power cycle #1, card detected & loaded, signal detected during channel 2
reboot cycle #1, card detected, but not loaded into kernel
[ 9.551263] audioinjector-octo soc ASoC: CODEC DAI cs42448 not registered - will retry
[ 9.551278] audioinjector-octo soc snd_soc_register_card failed (-517)
reboot cycle #2, card detected, but not loaded into kernel
[ 7.941254] audioinjector-octo soc ASoC: CODEC DAI cs42448 not registered - will retry
[ 7.941270] audioinjector-octo soc snd_soc_register_card failed (-517)
reboot cycle #3, card detected & loaded,
signal detected during channel 6 on speaker test session #1
signal detected during channel 0 on speaker test session #2
signal detected during channel 2 on speaker test session #3
signal detected during channel 2 on speaker test session #4
signal detected during channel 0 on speaker test session #5
signal detected during channel 0 on speaker test session #6 // test killed while channel 5 was playing
signal detected during channel 4 on speaker test session #7 // test killed while channel 4 was playing
signal detected during channel 2 on speaker test session #8 // test killed while channel 2 was playing
signal detected during channel 6 on speaker test session #6 // test killed while channel 5 was playing


Below find the DTS and config.txt that I am using, I can't upload as files for some reason, invalid file format error

Here is the DTS that I am using which includes loading up 3x MCP23017 gpio expanders, these are all working perfectly.


/dts-v1/;
/plugin/;

/ {
compatible = "brcm,bcm2708";

fragment@0 {
target = <&i2s>;
__overlay__ {
status = "okay";
};
};

fragment@1 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";

cs42448: cs42448@48 {
#sound-dai-cells = <0>;
compatible = "cirrus,cs42448";
reg = <0x48>;
clocks = <&cs42448_mclk>;
clock-names = "mclk";
VA-supply = <&vdd_5v0_reg>;
VD-supply = <&vdd_3v3_reg>;
VLS-supply = <&vdd_3v3_reg>;
VLC-supply = <&vdd_3v3_reg>;
status = "okay";
};

cs42448_mclk: codec-mclk {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <49152000>;
};
};
};

fragment@2 {
target = <&sound>;
__overlay__ {
compatible = "ai,audioinjector-octo-soundcard";
mult-gpios = <&gpio 27 0>, <&gpio 22 0>, <&gpio 23 0>,
<&gpio 24 0>;
reset-gpios = <&gpio 5 0>;
i2s-controller = <&i2s>;
codec = <&cs42448>;
status = "okay";
};
};

// Definitions for MCP23017 Gpio Extenders from Microchip Semiconductor

fragment@3 {
target = <&gpio>;
__overlay__ {
mcp23017_pins: mcp23017_pins {
brcm,pins = <24>;
brcm,function = <0>;
};
};
};

fragment@4 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;

mcp20:mcp23017@20 {
compatible = "microchip,mcp23017";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;

interrupt-parent = <&gpio>;
interrupts = <12 2>;
interrupt-controller;
#interrupt-cells=<2>;
microchip,irq-mirror;
status = "okay";
};
};
};

fragment@5 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;

mcp21:mcp23017@21 {
compatible = "microchip,mcp23017";
reg = <0x21>;
gpio-controller;
#gpio-cells = <2>;

interrupt-parent = <&gpio>;
interrupts = <16 2>;
interrupt-controller;
#interrupt-cells=<2>;
microchip,irq-mirror;
status = "okay";
};
};
};

fragment@6 {
target = <&i2c1>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;

mcp22:mcp23017@22 {
compatible = "microchip,mcp23017";
reg = <0x22>;
gpio-controller;
#gpio-cells = <2>;

interrupt-parent = <&gpio>;
interrupts = <6 2>;
interrupt-controller;
#interrupt-cells=<2>;
microchip,irq-mirror;
status = "okay";
};
};
};
fragment@7 {
target = <&gpio>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&my_pins>;

my_pins: my_pins {
brcm,pins = <6 12 16>; /* gpio no. */
brcm,function = <0 0 0>; /* 0:in, 1:out */
brcm,pull = <2 2 2>; /* 2:up 1:down 0:none */
};
};
};
};





Here is the config.txt file I am using
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on

# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
#dtparam=audio=on

#usb max current
usb_max_current=1

#use the gpio implementation of the I2C bus to handle clock stretching
#dtoverlay=i2c-gpio
dtparam=i2c1_baudrate=200000


#Enable FE-Pi Overlay
#dtoverlay=fe-pi-audio
dtoverlay=i2s-mmap

#Enable mcp3008 adc overlay
#dtoverlay=mcp3008:spi0-0-present,spi0-0-speed=3600000

#use the UART for GPS
enable_uart=1

#dtoverlay=audioinjector-addons
dtoverlay=pi-repeater-6x-mcp23017

[Dloranger]

some additional information. I turned on device tree debugging (dtdebug=1) and read the logs

On a bad boot (not loaded, but registers on i2c) I get the exact same messages (excluding time stamps). My I2C GPIO expanders which are loaded after the octo in the same device tree blob, are just fine however.


Bad boot
pi@PI-REPEATER-2X:~ $ i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: UU UU UU -- -- -- -- 27 -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- 48 -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

good boot
pi@PI-REPEATER-2X:~ $ i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: UU UU UU -- -- -- -- 27 -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --


relevant part of the logs...


001964.547: Loaded overlay 'pi-repeater-6x-mcp23017'
001964.610: dtdebug: Found fragment 0 (offset 36)
001968.076: dtdebug: merge_fragment(/soc/i2s@7e203000,/fragment@0/__overlay__)
001968.101: dtdebug: +prop(status)
001969.958: dtdebug: merge_fragment() end
001970.016: dtdebug: Found fragment 1 (offset 112)
001976.737: dtdebug: merge_fragment(/soc/i2c@7e804000,/fragment@1/__overlay__)
001976.765: dtdebug: +prop(#address-cells)
001978.261: dtdebug: +prop(#size-cells)
001979.764: dtdebug: +prop(status)
001985.133: dtdebug: merge_fragment(/soc/i2c@7e804000/cs42448@48,/fragment@1/__overlay__/cs42448@48)
001985.158: dtdebug: +prop(#sound-dai-cells)
001986.720: dtdebug: +prop(compatible)
001988.189: dtdebug: +prop(reg)
001989.686: dtdebug: +prop(clocks)
001991.226: dtdebug: +prop(clock-names)
001992.803: dtdebug: +prop(VA-supply)
001994.737: dtdebug: +prop(VD-supply)
001996.689: dtdebug: +prop(VLS-supply)
001998.656: dtdebug: +prop(VLC-supply)
002000.639: dtdebug: +prop(status)
002002.302: dtdebug: +prop(linux,phandle)
002004.332: dtdebug: +prop(phandle)
002005.966: dtdebug: merge_fragment() end
002010.056: dtdebug: merge_fragment(/soc/i2c@7e804000/codec-mclk,/fragment@1/__overlay__/codec-mclk)
002010.084: dtdebug: +prop(compatible)
002011.565: dtdebug: +prop(#clock-cells)
002013.110: dtdebug: +prop(clock-frequency)
002014.735: dtdebug: +prop(linux,phandle)
002016.702: dtdebug: +prop(phandle)
002018.268: dtdebug: merge_fragment() end
002018.298: dtdebug: merge_fragment() end
002018.412: dtdebug: Found fragment 2 (offset 560)
002030.501: dtdebug: merge_fragment(/soc/sound,/fragment@2/__overlay__)
002030.528: dtdebug: +prop(compatible)
002031.562: dtdebug: +prop(mult-gpios)
002033.058: dtdebug: +prop(reset-gpios)
002034.580: dtdebug: +prop(i2s-controller)
002036.126: dtdebug: +prop(codec)
002037.693: dtdebug: +prop(status)
002038.770: dtdebug: merge_fragment() end
002038.836: dtdebug: Found fragment 3 (offset 796)
002040.769: dtdebug: merge_fragment(/soc/gpio@7e200000,/fragment@3/__overlay__)
002044.444: dtdebug: merge_fragment(/soc/gpio@7e200000/mcp23017_pins,/fragment@3/__overlay__/mcp23017_pins)
002044.473: dtdebug: +prop(brcm,pins)
002046.572: dtdebug: +prop(brcm,function)
002048.698: dtdebug: +prop(linux,phandle)
002051.202: dtdebug: +prop(phandle)
002053.315: dtdebug: merge_fragment() end
002053.345: dtdebug: merge_fragment() end
002053.423: dtdebug: Found fragment 4 (offset 940)
002060.500: dtdebug: merge_fragment(/soc/i2c@7e804000,/fragment@4/__overlay__)
002060.525: dtdebug: +prop(#address-cells)
002062.087: dtdebug: +prop(#size-cells)
002068.090: dtdebug: merge_fragment(/soc/i2c@7e804000/mcp23017@20,/fragment@4/__overlay__/mcp23017@20)
002068.117: dtdebug: +prop(compatible)
002069.639: dtdebug: +prop(reg)
002071.203: dtdebug: +prop(gpio-controller)
002072.807: dtdebug: +prop(#gpio-cells)
002074.428: dtdebug: +prop(interrupt-parent)
002075.999: dtdebug: +prop(interrupts)
002077.607: dtdebug: +prop(interrupt-controller)
002079.254: dtdebug: +prop(#interrupt-cells)
002080.906: dtdebug: +prop(microchip,irq-mirror)
002082.981: dtdebug: +prop(status)
002084.710: dtdebug: +prop(linux,phandle)
002086.815: dtdebug: +prop(phandle)
002088.529: dtdebug: merge_fragment() end
002088.571: dtdebug: merge_fragment() end
002088.665: dtdebug: Found fragment 5 (offset 1252)
002095.868: dtdebug: merge_fragment(/soc/i2c@7e804000,/fragment@5/__overlay__)
002095.896: dtdebug: +prop(#address-cells)
002097.488: dtdebug: +prop(#size-cells)
002103.764: dtdebug: merge_fragment(/soc/i2c@7e804000/mcp23017@21,/fragment@5/__overlay__/mcp23017@21)
002103.789: dtdebug: +prop(compatible)
002105.334: dtdebug: +prop(reg)
002106.917: dtdebug: +prop(gpio-controller)
002108.560: dtdebug: +prop(#gpio-cells)
002110.207: dtdebug: +prop(interrupt-parent)
002111.808: dtdebug: +prop(interrupts)
002113.443: dtdebug: +prop(interrupt-controller)
002115.110: dtdebug: +prop(#interrupt-cells)
002116.791: dtdebug: +prop(microchip,irq-mirror)
002118.904: dtdebug: +prop(status)
002120.670: dtdebug: +prop(linux,phandle)
002122.790: dtdebug: +prop(phandle)
002124.517: dtdebug: merge_fragment() end
002124.560: dtdebug: merge_fragment() end
002124.651: dtdebug: Found fragment 6 (offset 1564)
002132.634: dtdebug: merge_fragment(/soc/i2c@7e804000,/fragment@6/__overlay__)
002132.660: dtdebug: +prop(#address-cells)
002134.275: dtdebug: +prop(#size-cells)
002140.797: dtdebug: merge_fragment(/soc/i2c@7e804000/mcp23017@22,/fragment@6/__overlay__/mcp23017@22)
002140.825: dtdebug: +prop(compatible)
002142.396: dtdebug: +prop(reg)
002144.005: dtdebug: +prop(gpio-controller)
002145.662: dtdebug: +prop(#gpio-cells)
002147.337: dtdebug: +prop(interrupt-parent)
002148.972: dtdebug: +prop(interrupts)
002150.632: dtdebug: +prop(interrupt-controller)
002152.327: dtdebug: +prop(#interrupt-cells)
002154.042: dtdebug: +prop(microchip,irq-mirror)
002156.174: dtdebug: +prop(status)
002157.958: dtdebug: +prop(linux,phandle)
002160.102: dtdebug: +prop(phandle)
002161.856: dtdebug: merge_fragment() end
002161.898: dtdebug: merge_fragment() end
002161.991: dtdebug: Found fragment 7 (offset 1876)
002164.254: dtdebug: merge_fragment(/soc/gpio@7e200000,/fragment@7/__overlay__)
002164.282: dtdebug: +prop(pinctrl-names)
002166.607: dtdebug: +prop(pinctrl-0)
002173.129: dtdebug: merge_fragment(/soc/gpio@7e200000/my_pins,/fragment@7/__overlay__/my_pins)
002173.152: dtdebug: +prop(brcm,pins)
002175.332: dtdebug: +prop(brcm,function)
002177.528: dtdebug: +prop(brcm,pull)
002179.753: dtdebug: +prop(linux,phandle)
002182.351: dtdebug: +prop(phandle)
002184.546: dtdebug: merge_fragment() end
002184.575: dtdebug: merge_fragment() end

end of relevant part of the logs