[ALSA - utils 0001326]: ISA cards (opl3sa2 in particular) are not detected properly on 2.6 kernels

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
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<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1326> 
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Reported By:                ahaning
Assigned To:                perex
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Project:                    ALSA - utils
Issue ID:                   1326
Category:                   alsaconf
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
======================================================================
Date Submitted:             08-10-2005 03:39 CEST
Last Modified:              08-18-2005 12:56 CEST
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Summary:                    ISA cards (opl3sa2 in particular) are not detected
properly on 2.6 kernels
Description: 
When brute-force detecting my OPL3SA2 card, the IRQ and DMA1/DMA2 settings
are incorrectly detected by alsaconf from alsa-utils. For example, the
default BIOS settings are IRQ=11, DMA1=0, DMA2=1, but alsaconf detects
IRQ=5, DMA1=1, DMA2=0. No matter the BIOS settings, alsaconf always
detects those settings (IRQ=5, DMA1=1, DMA2=0). If I set the BIOS settings
to that, then the card will make sound (after touching the mixer while
playing audio).

According to perex (author of the opl3sa2 driver):

"The alsaconf tries to gather free resources (irq/dma/ports) from the
/proc filesystem. It might be extended to gather this information also
from /sys filesystem."
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Relationships       ID      Summary
----------------------------------------------------------------------
related to          0000879 (snd_)opl3sa2 (isa) doesn't work (fails...
======================================================================

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 ahaning - 08-18-05 12:51 
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Sorry about the delay in my reply. I've been using my system recently and
haven't been able to reboot in the case that things crashed.

I'll test your latest patch again in a couple days when I'm done with
other things. However, I did try it and if I remember correctly, it didn't
work quite right with alsaconf or just modprobe. After running alsaconf, I
couldn't run a mixer.

Here's the output of that command:

# grep opl3sa2 /lib/modules/`uname -r`/modules.isapnpmap
snd-opl3sa2          0xa865     0x2000     0x00000000  0xa865     0x2100
snd-opl3sa2          0xa865     0x3000     0x00000000  0xa865     0x2100
snd-opl3sa2          0xa865     0x0008     0x00000000  0xa865     0x2100
snd-opl3sa2          0xa865     0x0108     0x00000000  0xa865     0x2100
snd-opl3sa2          0xb839     0x0022     0x00000000  0xa865     0x1022
#

Thanks.

----------------------------------------------------------------------
 perex - 08-18-05 12:56 
----------------------------------------------------------------------
I see the problem. I've added this extra line to our CVS isa/opl3sa2.c
source which is missing in the opl3sa2.c.patch posted here:

MODULE_DEVICE_TABLE(pnp, snd_opl3sa2_pnpbiosids);

Add this line right after snd_opl3sa2_pnpbiosids[] table definition (after
ending }; ). Reinstall driver and now alsaconf should detect your card as
PnP.

Issue History
Date Modified  Username       Field                    Change              
======================================================================
08-10-05 03:39 ahaning        New Issue                                    
08-10-05 03:39 ahaning        Distribution              => Slackware 9.1 (but
it's not distribution-specific)
08-10-05 03:39 ahaning        Kernel Version            => 2.6.12.2        
08-10-05 13:26 perex          Status                   new => assigned     
08-10-05 13:26 perex          Assigned To               => perex           
08-10-05 13:26 perex          File Added: alsaconf                         
08-10-05 13:28 perex          Note Added: 0005747                          
08-10-05 13:29 perex          Project                  ALSA - driver => ALSA -
utils
08-10-05 13:30 perex          Relationship added       related to 0000879  
08-10-05 13:31 perex          Category                 1_OTHERS => alsaconf
08-10-05 14:55 ahaning        Note Added: 0005748                          
08-11-05 00:24 ahaning        Note Added: 0005752                          
08-11-05 23:59 ahaning        Note Added: 0005763                          
08-12-05 00:00 ahaning        Note Edited: 0005763                         
08-12-05 03:09 ahaning        Note Added: 0005764                          
08-12-05 09:29 perex          Note Added: 0005766                          
08-12-05 12:54 ahaning        Note Added: 0005767                          
08-12-05 15:11 perex          Summary                  ISAPNP cards (opl3sa2 in
particular) are not detected properly on 2.6 kernels => ISA cards (opl3sa2 in
particular) are not detected properly on 2.6 kernels
08-12-05 15:14 perex          Note Added: 0005768                          
08-12-05 15:35 tiwai          Note Added: 0005769                          
08-12-05 15:36 ahaning        Note Added: 0005770                          
08-12-05 15:44 tiwai          Note Added: 0005771                          
08-12-05 15:45 tiwai          Note Added: 0005772                          
08-12-05 15:56 perex          Note Added: 0005777                          
08-12-05 16:08 perex          Note Added: 0005778                          
08-12-05 16:44 ahaning        Note Added: 0005782                          
08-12-05 18:00 perex          File Added: opl3sa2.c.patch                    
08-12-05 18:03 perex          Note Added: 0005783                          
08-12-05 18:52 ahaning        Note Added: 0005787                          
08-13-05 15:10 perex          File Deleted: alsaconf                       
08-13-05 15:10 perex          File Added: alsaconf                         
08-13-05 15:11 perex          Note Added: 0005806                          
08-13-05 19:06 ahaning        Note Added: 0005808                          
08-13-05 19:08 ahaning        Note Edited: 0005808                         
08-15-05 13:53 perex          File Added: opl3sa2-2.c.patch                    
08-15-05 13:55 perex          Note Added: 0005817                          
08-18-05 12:51 ahaning        Note Added: 0005843                          
08-18-05 12:56 perex          Note Added: 0005844                          
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