Re: [Alsa-user] snd_hdsp missing on raspberrypi pi 5

[David K. <da...@ke...>]

Ok everything works well after adding the right firmware to 
/lib/firmware/hdsploader! I'am very happy and thank's to the folks 
pointing me in the right direction!

Cheers!

Le 20.05.24 à 10:39, David Kessler a écrit :
>
> Adding dtoverlay=pcie-32bit-dma too /boot/firmware/config.txt is 
> helping a lot! The card is recognized in alsa! But yet no controls but 
> says it wants to update firmware! I can feel I am close!
>
> Le 20.05.24 à 10:11, David Kessler a écrit :
>>
>> As of
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/sound/pci/rme9652/hdsp.c?h=v6.8.10
>>
>> on line 3768 in
>>
>> |
>> static  int  snd_hdsp_initialize_memory(struct  hdsp  *hdsp)
>> {
>> 	struct  snd_dma_buffer  *capture_dma,  *playback_dma;
>>
>> 	capture_dma  =  snd_hammerfall_get_buffer(hdsp->pci,  HDSP_DMA_AREA_BYTES);
>> 	playback_dma  =  snd_hammerfall_get_buffer(hdsp->pci,  HDSP_DMA_AREA_BYTES);
>> 	if  (!capture_dma  ||  !playback_dma)  {
>> 		dev_err(hdsp->card->dev,
>> 			"%s: no buffers available\n",  hdsp->card_name);
>> 		return  -ENOMEM;
>> 	}|
>>
>> Who is responsible for this? We must have a talk! (:
>>
>> Le 20.05.24 à 09:07, David Kessler a écrit :
>>> From what I can tell comparing to a working system is that I have 
>>> all needed kernel modules loaded. the oss are indeed no longer 
>>> needed. Thank's for pointing me out.
>>>
>>> Here a paste bin with the info I could gather.
>>>
>>> https://pastebin.com/dAfDDnkM
>>>
>>> The missing interrupt I wonder about and still the no available 
>>> buffer error which returns -12 but also the memory address is stated 
>>> beeing [virtual] on the PI. Is there something wrong with the bus 
>>> not beeing PCI standard compliant?
>>>
>>> What my intuition tells me is that the PI is handling the DMA of the 
>>> PCI bus in a different way than other architecture. I am not sure 
>>> what to do as to troubleshoot further /: Read code?
>>>
>>> Thank's
>>>
>>> Le 19.05.24 à 23:51, Robert M. Riches Jr. a écrit :
>>>
>>>> Are you sure those are current?  "oss" usually refers to the
>>>> open-source-sound that predated ALSA around 25 years ago.
>>>>
>>>> The modinfo description from kernel 5.10.0 for snd-pcm-oss
>>>> seems to indicate it's for OSS emulation: "PCM OSS emulation
>>>> for ALSA."  For kernel 5.10.0-29-amd64 from Devuan Chimaera,
>>>> snd-seq-oss is not even listed.
>>>>
>>>> HTH
>>>>
>>>
>>>
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