opl3sa2 won't load in kernel 2.4.2

opl3sa2 won't load in kernel 2.4.2

[Rob W. van Swol]

Hi,

I cannot find an answer to my problem. Sound was always working ok in
2.2.x and 2.4.1 kernels. But now the opl3sa2 module won't load anymore.
First I got the messages:

opl3sa2: No cards found
opl3sa2: 0 PnP card(s) found. 

The I added isapnp=0 to the options line in /etc/modules.conf and then I
get:

opl3sa2: Control I/O port 0x0 not free
                          ^^^
It seems that the io address is not correctly passed to the module?!


The relevant lines from /etc/modules.conf are:

alias sound-slot-0 opl3sa2
alias sound-service-0-0 opl3sa2
alias midi opl3
options opl3 io=0x388
options opl3sa2 mss_io=0x530 irq=5 dma=1 dma2=0 mpu_io=0x330 io=0x370
isapnp=0

Any idea???

Answer please with a CC to vanswol@nlr.nl
Regards,
Rob


_____________________________________________________________

Rob W. van Swol
National Aerospace Laboratory NLR       Tel. +31 527 248252
P.O. Box 153                            Fax  +31 527 248210
8300 AD Emmeloord                       E-Mail vanswol@nlr.nl
The Netherlands                         http://www.neonet.nl/

Re: opl3sa2 won't load in kernel 2.4.2

[Jérôme Augé]

[-- Attachment #1: Type: text/plain, Size: 1056 bytes --]

"Rob W. van Swol" wrote:
> 
> Hi,
> 
> I cannot find an answer to my problem. Sound was always working ok in
> 2.2.x and 2.4.1 kernels. But now the opl3sa2 module won't load anymore.
> First I got the messages:
> 
> opl3sa2: No cards found
> opl3sa2: 0 PnP card(s) found.
> 
> The I added isapnp=0 to the options line in /etc/modules.conf and then I
> get:
> 
> opl3sa2: Control I/O port 0x0 not free
>                           ^^^
> It seems that the io address is not correctly passed to the module?!
> 

I got the same problem and i think there is an error in opl3sa2.c ?
I thinnk the problem is in the init_opl3sa2() function, in this line :

if(!isapnp && io == -1 ) {

If you don't use/have IsaPNP then the cfg[card] struct is not/never
initialized ... ?

I made a quick patch that correct this test ... but I think we should
find a better way to choose between initializing the cfg[card] struct
using opl3sa2_isapnp_probe or using the user suplied module parameters
... no ?

-- 
Jérôme Augé
echo cdqgm@vnqb-hklmpkml.yp | tr khplmndvqyc nirtelacufj

[-- Attachment #2: opl3sa2-isapnp-io-test.patch --]
[-- Type: text/plain, Size: 839 bytes --]

--- opl3sa2.c.orig	Wed Feb 28 14:44:03 2001
+++ opl3sa2.c	Wed Feb 28 14:48:07 2001
@@ -914,13 +914,8 @@
 #endif
 		/* If a user wants an I/O then assume they meant it */
 		
-		if(!isapnp && io == -1 ) {
-			if(io == -1 || irq == -1 || dma == -1 ||
-			   dma2 == -1 || mss_io == -1) {
-				printk(KERN_ERR
-				       "opl3sa2: io, mss_io, irq, dma, and dma2 must be set\n");
-				return -EINVAL;
-			}
+		if((io != -1) && (irq != -1) && (dma != -1) &&
+			(dma2 != -1) && (mss_io != -1) && (mpu_io !=-1)) {
 
 			/*
 			 * Our own config:
@@ -948,6 +943,9 @@
 			opl3sa2_clear_slots(&cfg[card]);
 			opl3sa2_clear_slots(&cfg_mss[card]);
 			opl3sa2_clear_slots(&cfg_mpu[card]);
+		} else {
+			printk(KERN_ERR "opl3sa2: io, mss_io, irq, dma, and dma2 must be set\n");
+			return -EINVAL;
 		}
 
 		if(!probe_opl3sa2(&cfg[card], card) ||