Thank you, done with amixer -q set 'AIU SPDIF SRC SEL' I2S
Posts by ds000
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What kind of changes (to u-boot configuration) to compile a bootable/working version?
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Did the recompile with the third option properly commented out (a colleague explained to me, that the overlay should have enabled the output already, independently of the patch, though). No change/no output.
LibreELEC:~/root # aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: KHADASVIM2 [KHADAS-VIM2], device 0: fe.dai-link-0 (*) []
Subdevices: 0/1
Subdevice #0: subdevice #0
There is no special device for SPDIF (different on my Orange Pi PC/H3)!? To get some output, I had to switch the third column (right most one) from SPDIF (nothing to hear) to I2S (proper audio output). No idea how to configure it to make this default, or run it via command line non-interactively!?
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Ah, good to know: There is no 3.5mm jack on the VIM2, so I will revert the change. I'm directly connecting the coax via the two PINs 13, 14 on the 40pin connector.
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Yes, you are right (just looked at the "//" and commented the first two options with those)
I simply overlooked the good old C comments (/* ... */). Will try this and report back. -
I'm trying to get SPDIF output to connect it to some SONY receiver (having both coax and optical SPDIF-in, checked it with some other LE device (Orange Pi PC)) on the PIN 13 officially labelled "SPDIF" in the documentation. I hope to get this done through:
- Enabling SPDIF via the DTS overlay: https://github.com/khadas/khadas-…s/vim2/mainline - checked via /proc/device-tree, that it is actually happening/working
- Patching the kernel to enable SPDIF: https://github.com/BlackCatDevel0…adas-vim2.patch (patch runs smoothly during compile)
- Trying to enable "ACODEC" in the DTS file and recompile it to DTB
- SPDIF is enabled in the kernel booted (checking via /proc/config.gz)
Any ideas, what I'm missing? Using the cloned source for version 12.
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Still observe the issue of getting an unbootable system (Orange Pi PC, H3) when compiling a recent version from sources. When simply taking the boot code from a working SD card by dd if=/dev/sda of=start bs=512 count=8192 and put that to the one with the new version, everything is working properly again.
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Didn't find much time to look deeper into it. Just compiled the newest version. Unfortunately, the issue is getting worse (and CEC on H3 detoriated further) : The TV is getting switched on when kodi is coming up, but the CEC is not working any more (at all). The "connected" message does not appear. Both TVs don't recognize any key presses via CEC (cross checking with an older version - kernel of beginning of May 2024 - it still works on the older SAMSUNG). When getting to the Input configuration CEC can only be switched off (and not be enabled again) and after it, TV is not getting switched on during kodi startup.
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I thought some stupidity on my side for a while: At some point the PROJECT=Allwinner ARCH=arm DEVICE=H3 UBOOT_SYSTEM="orangepi-pc" make image doesn't generate bootable sd card images any more. I was just using some previously written card with an older image and just exchanged the KERNEL and SYSTEM with the newly compiled one (on the first partition). Which works without any problems. Only problem: It is quite tedious (slow) to clone a card to get a fresh booting version that way. Diffing the scripts/(mk)image files there are some changes ... but they do not look very dramatic to me. Any ideas? Thank you!
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It looks quite confusing: The first part of the patch is (already) applied and visible in the kernel sources, later stuff is missing at all (the to be replaced stuff as well). I have to look deeper into that ...
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I just took the patch from an earlier kernel (which fixed the aforementioned problem):
Diff
Display MoreFrom 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jernej Skrabec <jernej.skrabec@gmail.com> Date: Mon, 11 Oct 2021 20:13:41 +0200 Subject: [PATCH] HACK: SW CEC implementation for H3 Many H3 boards lack 32768 Hz external oscillator, so internal RC is used instead. However, it's too unstable for CEC. Use SW implementation instead. That makes it usable, albeit sensitive to cpufreq changes. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> --- drivers/gpu/drm/sun4i/Kconfig | 2 + drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h | 13 ++++ drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 83 +++++++++++++++++++++++++- 3 files changed, 96 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/sun4i/Kconfig b/drivers/gpu/drm/sun4i/Kconfig index 5755f0432e77..b93eb2fb52ce 100644 --- a/drivers/gpu/drm/sun4i/Kconfig +++ b/drivers/gpu/drm/sun4i/Kconfig @@ -56,6 +56,8 @@ config DRM_SUN8I_DW_HDMI tristate "Support for Allwinner version of DesignWare HDMI" depends on DRM_SUN4I select DRM_DW_HDMI + select CEC_CORE + select CEC_PIN help Choose this option if you have an Allwinner SoC with the DesignWare HDMI controller with custom HDMI PHY. If M is diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h index bffe1b9cd3dc..61c97619cba1 100644 --- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h +++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h @@ -13,6 +13,8 @@maybe, this was not the brightest idea
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I was distracted with other stuff and boards for a while: Came back to the Orange Pi PC. The new images work really great. Unfortunately the patch for software CEC does not work any more, running the build linux throws a message that it assumes the patch was already applied. Same state with the Sony (non-working) and Samsung TVs like before, but without the mitigation option.
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I was looking into a bit similar problem. As stated above, the magic is the device tree (overlay). It is required to get the pin routing right, here the newer kernels and dts need to work together properly. For getting e.g. SPDIF output to work, I had to modify the device tree file to actually enable it (creating packages/linux/patches/default/linux-080-odroid-c2.patch):
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Display More--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2-unpatched.dts 2023-11-05 01:19:49.197991036 +0100 +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts 2023-11-05 01:29:18.041481346 +0100 @@ -174,6 +174,13 @@ }; }; + spdif_dit: audio-codec-0 { + #sound-dai-cells = <0>; + compatible = "linux,spdif-dit"; + status = "okay"; + sound-name-prefix = "DIT"; + }; + sound { compatible = "amlogic,gx-sound-card"; model = "ODROID-C2"; @@ -184,33 +191,46 @@ assigned-clock-rates = <294912000>, <270950400>, <393216000>; - dai-link-0 { - sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>; - }; + sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>; + }; - dai-link-1 { - sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>; - dai-format = "i2s"; - mclk-fs = <256>; - - codec-0 { - sound-dai = <&aiu AIU_HDMI CTRL_I2S>; - }; - }; - - dai-link-2 { - sound-dai = <&aiu AIU_HDMI CTRL_OUT>; - - codec-0 { - sound-dai = <&hdmi_tx>; - }; - }; + dai-link-1 { + sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>; + }; + + dai-link-2 { + sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>; + dai-format = "i2s"; + mclk-fs = <256>; + + codec-0 { + sound-dai = <&aiu AIU_HDMI CTRL_I2S>; + }; + }; + + dai-link-3 { + sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>; + + codec-0 { + sound-dai = <&spdif_dit>; + }; + }; + + dai-link-4 { + sound-dai = <&aiu AIU_HDMI CTRL_OUT>; + + codec-0 { + sound-dai = <&hdmi_tx>; + }; + }; }; }; &aiu { status = "okay"; + pinctrl-0 = <&spdif_out_ao_6_pins &i2s_am_clk_pins &i2s_out_ao_clk_pins &i2s_out_lr_clk_pins &i2s_out_ch01_ao_pins>; + pinctrl-names = "default"; }; &cec_AO { @@ -278,8 +299,8 @@ &gpio_ao { gpio-line-names = "UART TX", "UART RX", "VCCK En", "TF 3V3/1V8 En", "USB HUB nRESET", "USB OTG Power En", - "J7 Header Pin2", "IR In", "J7 Header Pin4", - "J7 Header Pin6", "J7 Header Pin5", "J7 Header Pin7", + "SPDIF_OUTPUT", "IR In", "I2S_MCLK", + "I2S_SCLK", "I2S_LRCLK", "I2S_DATA_OUTPUT", "HDMI CEC", "SYS LED", /* GPIO_TEST_N */ "";That worked for me a couple of month ago, unfortunately I fried my C2 board and thus being unable to test it again. Hope this find someone helpful though ...
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For getting SPDIF output to work on recent LibreELEC (11.0), I had to modify the device tree file to actually enable it and make it visible to KODI (creating packages/linux/patches/default/linux-080-odroid-c2.patch):
Diff
Display More--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2-unpatched.dts 2023-11-05 01:19:49.197991036 +0100 +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts 2023-11-05 01:29:18.041481346 +0100 @@ -174,6 +174,13 @@ }; }; + spdif_dit: audio-codec-0 { + #sound-dai-cells = <0>; + compatible = "linux,spdif-dit"; + status = "okay"; + sound-name-prefix = "DIT"; + }; + sound { compatible = "amlogic,gx-sound-card"; model = "ODROID-C2"; @@ -184,33 +191,46 @@ assigned-clock-rates = <294912000>, <270950400>, <393216000>; - dai-link-0 { - sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>; - }; + sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>; + }; - dai-link-1 { - sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>; - dai-format = "i2s"; - mclk-fs = <256>; - - codec-0 { - sound-dai = <&aiu AIU_HDMI CTRL_I2S>; - }; - }; - - dai-link-2 { - sound-dai = <&aiu AIU_HDMI CTRL_OUT>; - - codec-0 { - sound-dai = <&hdmi_tx>; - }; - }; + dai-link-1 { + sound-dai = <&aiu AIU_CPU CPU_SPDIF_FIFO>; + }; + + dai-link-2 { + sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>; + dai-format = "i2s"; + mclk-fs = <256>; + + codec-0 { + sound-dai = <&aiu AIU_HDMI CTRL_I2S>; + }; + }; + + dai-link-3 { + sound-dai = <&aiu AIU_CPU CPU_SPDIF_ENCODER>; + + codec-0 { + sound-dai = <&spdif_dit>; + }; + }; + + dai-link-4 { + sound-dai = <&aiu AIU_HDMI CTRL_OUT>; + + codec-0 { + sound-dai = <&hdmi_tx>; + }; + }; }; }; &aiu { status = "okay"; + pinctrl-0 = <&spdif_out_ao_6_pins &i2s_am_clk_pins &i2s_out_ao_clk_pins &i2s_out_lr_clk_pins &i2s_out_ch01_ao_pins>; + pinctrl-names = "default"; }; &cec_AO { @@ -278,8 +299,8 @@ &gpio_ao { gpio-line-names = "UART TX", "UART RX", "VCCK En", "TF 3V3/1V8 En", "USB HUB nRESET", "USB OTG Power En", - "J7 Header Pin2", "IR In", "J7 Header Pin4", - "J7 Header Pin6", "J7 Header Pin5", "J7 Header Pin7", + "SPDIF_OUTPUT", "IR In", "I2S_MCLK", + "I2S_SCLK", "I2S_LRCLK", "I2S_DATA_OUTPUT", "HDMI CEC", "SYS LED", /* GPIO_TEST_N */ "";That worked for me a couple of month ago with SPDIF, unfortunately fried the board, thus unable to test it again.
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I've got only a rough understanding of CEC, so no idea what is hardware/software doing in here: How could I help? I've got two working devices on that particular TV: Pine64 (RK3328 SoC) and an older ODRIOD C2 (Amlogic 905). All three devices work properly with the named Samsung without flaw.
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Wow, cool! Replaced *pc-plus with *pc (wondering why that board is not listed), recompiled, restarted. That fixed the problem
Thanks a lot!! -
Hi! Thank you for the pointer! But sorry, I'm a bit lost here: Checked the build directory, the patch you name got applied for the kernel. How (where) can I change the board name as you indicate (doing it for making the image results in "invalid choice")?
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The Allwinner H3 support on the Orange Pi PC matured a lot over the years, appreciate that! Unfortunately the once perfectly working CEC control somehow degraded in newer versions. I checked the older 10.X standard image available for direct download - working like a charm. In 11.0 and the development branch it is really sluggish for SONY KDL50W805B (works perfect for some older SAMSUNG model):
- In many cases it switches the TV (SONY FullHD, 5y) on and switches to the proper HDMI
- The message that the CEC adapter got recognized takes longer to appear compared to 10.X version (in kodi main screen)
- Sometimes the Orange Pi reacts to key presses on the TV remote, often not. Usually, double presses do not get recognized. If running for a while, nothing happens any more
- When switching off kodi and getting down to the commandline (cec-ctl) it won't react as well
- I checked CPU frequencies and scaling governors if they could have an impact on that - no changes in behavior
Other devices like a Pine Rock64 work with the newest version without problems.
From cec-ctl I get (kodi stopped to avoid blocking of the device):
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Display MoreLibreELEC:~ # cec-ctl -d/dev/cec0 --to 0 --standby Driver Info: Driver Name : sun8i-dw-hdmi Adapter Name : dw_hdmi Capabilities : 0x0000010e Logical Addresses Transmit Passthrough Connector Info Driver version : 6.1.19 Available Logical Addresses: 4 DRM Connector Info : card 0, connector 51 Physical Address : 4.0.0.0 Logical Address Mask : 0x0100 CEC Version : 2.0 Vendor ID : 0x000c03 (HDMI) OSD Name : 'Playback' Logical Addresses : 1 (Allow RC Passthrough) Logical Address : 8 (Playback Device 2) Primary Device Type : Playback Logical Address Type : Playback All Device Types : Playback RC TV Profile : None Device Features : None Transmit from Playback Device 2 to TV (8 to 0): STANDBY (0x36) Sequence: 150 Tx Timestamp: 860.150555s Tx, Not Acknowledged (4), Max RetriesI can provide the kodi debug messages for CEC, but they pretty much say the same as for the command line tool.
I checked for differences in the kernel code for CEC, didn't see much changes here from the kernel used in 10.X and the latest ones (I'm not an expert though). I've no idea what might influence the CEC implementation showing such effects
Any ideas where to look for a solution/fix?I'd like to do some minor modifications to the image and thus compile the package by my self. Works perfectly for 11.0 and the latest stuff, but not for 10.X any more.
Thank you!
