Unknown HD AUDIO CODEC

[oss117]

I recently bought a new Mini-ITX motherboard (ASRock AD2550-ITX) and OSS doesn't have a matching CODEC for it. Here is what I get from /var/log/messages:

Code: Select all

kernel: oss_hdaudio: HDA codec 0x80862880 not known yet

and here is the output of lspci -vv for the HD Audio chip:

Code: Select all

00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
        Subsystem: ASRock Incorporation Device c892
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 22
        Region 0: Memory at dff00000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+
                Address: 0000000000000000  Data: 0000
        Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
                        ExtTag- RBE- FLReset-
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
                        MaxPayload 128 bytes, MaxReadReq 128 bytes
                DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
                LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
                        ClockPM- Surprise- LLActRep- BwNot-
                LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
        Capabilities: [100 v1] Virtual Channel
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
                Arb:    Fixed- WRR32- WRR64- WRR128-
                Ctrl:   ArbSelect=Fixed
                Status: InProgress-
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=01
                        Status: NegoPending- InProgress-
                VC1:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=1 ArbSelect=Fixed TC/VC=02
                        Status: NegoPending- InProgress-
        Capabilities: [130 v1] Root Complex Link
                Desc:   PortNumber=0f ComponentID=00 EltType=Config
                Link0:  Desc:   TargetPort=00 TargetComponent=00 AssocRCRB- LinkType=MemMapped LinkValid+
                        Addr:   00000000fed1c000
        Kernel driver in use: oss_hdaudio


I guess it would suffice to add a new line to the codec_desc_t codecs[] list, in kernel/drv/oss_hdaudio/hdaudio_codecids.h, but guessing what *remap structure to point to in that line is another matter... Any clue on how to do that ?

[nuc]

The codec is unknown, but does everything else still work? Or do you just want to get rid of the "unknown" warning?

[oss117]

The codec is unknown, but does everything else still work?

To be honest, beside osstest and ossxmix (which both seem to be working fine), I didn't extensively test the audio on this motherboard, the reason being it's in a PC that I only use as a firewall/NAS/web server (there're not even speakers connected to it and I ran the quick tests with a headphone). So, I can only tell you it's apparently working fine (it is for left & right channels, at least)...

Or do you just want to get rid of the "unknown" warning?

I just wanted you to know that this hardware is not fully recognized by OSS... I suppose(d) that you have contacts with motherboards/audio cards manufacturers to inquire about their CODECs.

[nuc]

To be honest, beside osstest and ossxmix (which both seem to be working fine), I didn't extensively test the audio on this motherboard, the reason being it's in a PC that I only use as a firewall/NAS/web server (there're not even speakers connected to it and I ran the quick tests with a headphone). So, I can only tell you it's apparently working fine (it is for left & right channels, at least)...

So as I suspected the codec is unknown but it still gets parsed correctly (if indeed as you say all mixer elements are present). The only drawback might be a cluttered mixer AFAIK.

I just wanted you to know that this hardware is not fully recognized by OSS... I suppose(d) that you have contacts with motherboards/audio cards manufacturers to inquire about their CODECs.

Oh, I'm sorry to disappoint you but I'm just a moderator on this forum, not a developer :/. However I can tell you that I have the same "unknown codec" issue on my home system and nevertheless OSS works beautifully.

If you want, you might still email the developers (to "dev" or "hannu" [at]opensound.com) and ask if they include native support for your codec - I did so a while back whereat they replied they'll "see if support can be added to the next version of OSS".

Anyways thanks for reporting! Hope I could help.