Hi,
I've installed on my Raspberry the HifiBerry DAC module and Adafruit PiTFT 2.8" display. Before update my kernel with yours, HifiBerry worked well. After that it stopped. It seems that adafruit kernel has something wrong with hifiberry modules.
I've used raspberrypi-bootloader-adafruit-20140227-1.deb since HiFiBerry modules are present starting from kernel version 3.10.23.
HiFiBerry is configured as following:
sudo rpi-update
sync
sudo reboot
And after I've added to /etc/modules the following lines:
snd_soc_bcm2708
snd_soc_bcm2708_i2s
bcm2708_dmaengine
snd_soc_pcm5102a
snd_soc_hifiberry_dac
Thanks a lot
Marco
After installing PiTFT kernel HifiBerry stops working
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Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
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- notro
- Posts: 93
- Joined: Tue Sep 11, 2012 9:59 am
Re: After installing PiTFT kernel HifiBerry stops working
Probably because the modules are not built for this kernel:
It is included in the default config: https://github.com/raspberrypi/linux/bl ... onfig#L743
I encourage Adafruit to use that as a base when they build their kernel.
This is how I have scripted that process:
Code: Select all
$ cat /proc/version
Linux version 3.10.32+ (xobs@crash-novena) (gcc version 4.6.3 (Debian 4.6.3-14) ) #3 PREEMPT Fri Feb 28 01:41:33 SGT 2014
$ zgrep HIFIBERRY /proc/config.gz
$
$ find /lib/modules/ -name "*hifi*"
$
I encourage Adafruit to use that as a base when they build their kernel.
This is how I have scripted that process:
Code: Select all
make bcmrpi_defconfig
# enable all FBTFT drivers as modules
scripts/config --module FB_TFT
yes m | make oldconfig
# enable touch
scripts/config --enable INPUT_TOUCHSCREEN
yes n | make oldconfig
scripts/config --enable MFD_STMPE
yes "" | make oldconfig
scripts/config --enable STMPE_SPI
scripts/config --enable GPIO_STMPE
scripts/config --module TOUCHSCREEN_STMPE
make oldconfig
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Re: After installing PiTFT kernel HifiBerry stops working
Hi Notro,
thank you for your quick reply! Following there' s my Pi's output:
It seems that there's a strange situation: modules are present in path but they're not present into the config. Is it a possible configuration? Can I do something to fix this problem?
Thanks
Marco
thank you for your quick reply! Following there' s my Pi's output:
Code: Select all
$ cat /proc/version
Linux version 3.10.32+ (xobs@crash-novena) (gcc version 4.6.3 (Debian 4.6.3-14) ) #3 PREEMPT Fri Feb 28 01:41:33 SGT 2014
$ zgrep HIFIBERRY /proc/config.gz
$ find /lib/modules/ -name "*hifi*"
/lib/modules/3.10.32+/kernel/sound/soc/bcm/snd-soc-hifiberry-digi.ko
/lib/modules/3.10.32+/kernel/sound/soc/bcm/snd-soc-hifiberry-dac.ko
Thanks
Marco
- notro
- Posts: 93
- Joined: Tue Sep 11, 2012 9:59 am
Re: After installing PiTFT kernel HifiBerry stops working
The modules are there because rpi-update installed them I guess.
You could try and force load them using the f flag to modprobe.
But I don't think it will work after looking at the prerequisites for bcm2708_dmaengine in the kernel source:
https://github.com/raspberrypi/linux/bl ... ma/Kconfig
https://github.com/raspberrypi/linux/bl ... a/Makefile
This means that DMA_ENGINE (bool) can only be built into the kernel proper (not as a loadable module), but it's not:
You can try my kernel: https://github.com/notro/fbtft/issues/8 ... t-36920153
But be aware of my touch problems: http://forums.adafruit.com/viewtopic.php?f=50&t=51432
You could try and force load them using the f flag to modprobe.
But I don't think it will work after looking at the prerequisites for bcm2708_dmaengine in the kernel source:
https://github.com/raspberrypi/linux/bl ... ma/Kconfig
Code: Select all
config DMA_BCM2708
tristate "BCM2708 DMA engine support"
depends on MACH_BCM2708
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
config DMA_ENGINE
bool
Code: Select all
obj-$(CONFIG_DMA_ENGINE) += dmaengine.o
Code: Select all
$ zgrep DMA_ENGINE /proc/config.gz
$
But be aware of my touch problems: http://forums.adafruit.com/viewtopic.php?f=50&t=51432
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- Posts: 8
- Joined: Thu Jan 30, 2014 4:21 pm
Re: After installing PiTFT kernel HifiBerry stops working
Ok tomorrow I'll try to force although you think probably it will not work.You could try and force load them using the f flag to modprobe.
I've seen that Adafruit gives a zip file containing the patch that can be applied to a personal kernel. Are both display and touch included in this patch?
Since they don't give any support on how apply this patch to a standard kernel , is there a tutorial that explain how to do it?
As an alternative I'll try your kernel, but I would use the display as a media selector, so I would use it
I agree with you that Ada team should start with a standard raspbian kernel, also because they don't give any support on how to apply their patch to a standard kernel...
Aren't you using their touch driver?
I've seen they've used your your framebuffer... my compliments to you!
- notro
- Posts: 93
- Joined: Tue Sep 11, 2012 9:59 am
Re: After installing PiTFT kernel HifiBerry stops working
The patch set is for the 3.6 kernel and contains everything except one patch: http://forums.adafruit.com/viewtopic.php?f=50&t=51293I've seen that Adafruit gives a zip file containing the patch that can be applied to a personal kernel. Are both display and touch included in this patch?
This patch set doesn't apply cleanly on a 3.10 kernel. Adafruit will probably provide a new set when their 3.10 kernel is out of beta.
I understand why they don't make a tutorial. The kernel source is a moving target, and one minute the patches apply cleanly, and the next they don't because a source file has changed.Since they don't give any support on how apply this patch to a standard kernel , is there a tutorial that explain how to do it?
And should the tutorial be about building the kernel on the Raspberry Pi itself (which takes 8-9 hours), or should it be about cross compiling which adds another level of complexity and the need for a Linux machine?
This is the most referred to guide on kernel compilation for the Pi: http://elinux.org/RPi_Kernel_Compilation
I made this one when I was compiling the kernel on the Pi itself: https://github.com/notro/fbtft/wiki/Bui ... ft-drivers
I could be that you don't experience any problems. I would be nice for me to knowAs an alternative I'll try your kernel, but I would use the display as a media selector, so I would use it
I have a Plug'n Play image for the PiTFT on hold, because touch stops working on my display.
Yes I am using the same driver (stmpe-ts), but one of the 3.6 patches doesn't apply to 3.10, so I have skipped it since the functionality already is in 3.10. But it is implemented a bit different from the Adafruit patch. I don't know what patches Adafruit uses on 3.10Aren't you using their touch driver?
Have you used X windows and touch a lot with the 3.10 Adafruit kernel? A couple of touches doesn't break it for me. It is with heavy use it stops working.
Thanks!I've seen they've used your your framebuffer... my compliments to you!
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Re: After installing PiTFT kernel HifiBerry stops working
I've read only now your reply... I've found the eLinux link on my own and I've created on my laptop a virtual machine with a Debian ditro and I've downloaded all necessary files.
Since not all patches were able to apply on their own with command, I've manually tried to copy and past patches in the right (?) place
I've found some problems on fbtft_device.c substitutions and I'm returned here to say it to you where I've seen that probably there is a patch missing
So now I've stopped my substitution project
Is the HifiBerry module enabled on your kernel?
At the moment I only need to have both display (with touch) and audio enabled to perform some tests on my python app. After that I'll hope that Adafruit team will release a new kernel patch set to apply to the 3.10.32 kernel or that they aplly it on a standard kernel source to have natively hifiberry module inserted into the kernel.
In this WE I'll try also the Adafruit newer kernel to see if I'll have same problems as you with stress touch tests.
I'll keep you informed on both kernel tests.
Since not all patches were able to apply on their own with
Code: Select all
patch -p1 < xxx-patch
I've found some problems on fbtft_device.c substitutions and I'm returned here to say it to you where I've seen that probably there is a patch missing
So now I've stopped my substitution project
Is the HifiBerry module enabled on your kernel?
At the moment I only need to have both display (with touch) and audio enabled to perform some tests on my python app. After that I'll hope that Adafruit team will release a new kernel patch set to apply to the 3.10.32 kernel or that they aplly it on a standard kernel source to have natively hifiberry module inserted into the kernel.
In this WE I'll try also the Adafruit newer kernel to see if I'll have same problems as you with stress touch tests.
I'll keep you informed on both kernel tests.
- notro
- Posts: 93
- Joined: Tue Sep 11, 2012 9:59 am
Re: After installing PiTFT kernel HifiBerry stops working
YesIs the HifiBerry module enabled on your kernel?
Code: Select all
$ cat /proc/version
Linux version 3.10.33+ (pi@raspi2) (gcc version 4.7.1 20120402 (prerelease) (crosstool-NG 1.15.2) ) #1 PREEMPT Sat Mar 8 18:51:35 CET 2014
$ zgrep HIFIBERRY /proc/config.gz
CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
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Re: After installing PiTFT kernel HifiBerry stops working
Hi notro,
I've installed your kernel. When I try to start X Adafruit display remains black. I've attached my X log. Do you know why it happens?
I've installed your kernel. When I try to start X Adafruit display remains black. I've attached my X log. Do you know why it happens?
- Attachments
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- Xorg.0.log
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- notro
- Posts: 93
- Joined: Tue Sep 11, 2012 9:59 am
Re: After installing PiTFT kernel HifiBerry stops working
This is the reason:
Change to /dev/fb1 in /usr/share/X11/xorg.conf.d/99-fbturbo.conf
OR
You can delete that file and use the FRAMEBUFFER variable
Details: https://github.com/notro/fbtft-spindle/ ... indows-use
Code: Select all
[ 537.654] (**) FBTURBO(0): Option "fbdev" "/dev/fb0"
OR
You can delete that file and use the FRAMEBUFFER variable
Details: https://github.com/notro/fbtft-spindle/ ... indows-use
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Re: After installing PiTFT kernel HifiBerry stops working
Thanks now the display is working with my X server. I've found the touchscreen wiki but I've not understood what guide should I follow to setup my touch. I'm sorry to seem so stupid, but I'm not autonomous at the moment as you can see
- notro
- Posts: 93
- Joined: Tue Sep 11, 2012 9:59 am
Re: After installing PiTFT kernel HifiBerry stops working
You can use the Adafruit tutorial for everything except for the loading of kernel modules and their arguments.
OR
If you can start from scratch, you can use this image: http://forums.adafruit.com/viewtopic.php?f=50&t=51468
OR
If you can start from scratch, you can use this image: http://forums.adafruit.com/viewtopic.php?f=50&t=51468
-
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- Joined: Thu Jan 30, 2014 4:21 pm
Re: After installing PiTFT kernel HifiBerry stops working
Ah ok
I'll follow them.
Thanks
I'll follow them.
Thanks
Forum rules
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/
Talk about Adafruit Raspberry Pi® accessories! Please do not ask for Linux support, this is for Adafruit products only! For Raspberry Pi help please visit: http://www.raspberrypi.org/phpBB3/