PATCH: acore/wrappers.c hosed snprintf

PATCH: acore/wrappers.c hosed snprintf

[Matthias Andree]

Hi,

for some reason, alsa-driver-0.9.5 chose to use its snd_compat_*snprintf
stuff on Linux 2.4.22-pre3-ac1. This triggered bugs in wrappers.c that
break the compile, trivial patch below. Please apply.

--- ./acore/wrappers.c.orig	2003-07-13 13:53:29.000000000 +0200
+++ ./acore/wrappers.c	2003-07-13 13:53:43.000000000 +0200
@@ -58,7 +58,6 @@
 int snd_compat_vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 {
 	char *ptr = (void *) __get_free_pages(GFP_KERNEL, 0);
-	va_list args;
 	if (ptr == NULL) {	/* should not happen - GFP_KERNEL has wait flag */
 		if (size > 0)
 			buf[0] = 0;
@@ -73,9 +72,10 @@
 int snd_compat_snprintf(char *buf, size_t size, const char * fmt, ...)
 {
 	int res;
+	va_list args;
 
 	va_start(args, fmt);
-	res = snd_compat_vsnprintf(buf, size, args);
+	res = snd_compat_vsnprintf(buf, size, fmt, args);
 	va_end(args);
 	return res;
 }


-- 
Matthias Andree


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alsa 0.9.5 - ymfpci - Yay!

[tom burkart]

Thanks guys!
I finally have a working sound system on my Toshiba Notebook (Tecra 8100)!

tom.



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Re: alsa 0.9.5 - ymfpci - Yay!

[tom burkart]

On Jul 16, tom burkart wrote:

> I finally have a working sound system on my Toshiba Notebook (Tecra 8100)!
Ok, it worked once, just after the kernel upgrade (with alsa 0.9.5) and
hasn't since... :-(

tom.



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Re: Re: alsa 0.9.5 - ymfpci - Yay!

[Takashi Iwai]

At Thu, 17 Jul 2003 11:11:13 +1000 (EST),
tom burkart wrote:
> 
> On Jul 16, tom burkart wrote:
> 
> > I finally have a working sound system on my Toshiba Notebook (Tecra 8100)!
> Ok, it worked once, just after the kernel upgrade (with alsa 0.9.5) and
> hasn't since... :-(

i believe this is just a missing initialization somewhere.

could you try once whether the oss ymfpci driver works?
if it works, then unload it and start the ALSA again?


Takashi


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Re: Re: alsa 0.9.5 - ymfpci - Yay!

[tom burkart]

Today, Takashi Iwai wrote:

> could you try once whether the oss ymfpci driver works?
> if it works, then unload it and start the ALSA again?
works, works.

tom.



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Re: Re: alsa 0.9.5 - ymfpci - Yay!

[tom burkart]

Today, Takashi Iwai wrote:

> could you try once whether the oss ymfpci driver works?
> if it works, then unload it and start the ALSA again?
While it works, I noticed a lot of arifacts in the sound that never used
to be there...

tom.
Consultant

AUSSEC    Phone: 61 4 1768 2202
339 Blaxland Rd., Ryde NSW 2112
Email: tom@aussec.com



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Re: Re: alsa 0.9.5 - ymfpci - Yay!

[Takashi Iwai]

[-- Attachment #1: Type: text/plain, Size: 761 bytes --]

At Thu, 17 Jul 2003 21:09:05 +1000 (EST),
tom burkart wrote:
> 
> Today, Takashi Iwai wrote:
> 
> > could you try once whether the oss ymfpci driver works?
> > if it works, then unload it and start the ALSA again?
> works, works.

ok, then please try the following
- apply the attach patch
- reboot your machine and load the (non-working) alsa driver first.
  check whether it really doesn't work
- get the register dump from /proc/asound/card0/ymfpci
- get the pci registers via "lspci -vvxxx" (only for the ymfpci
  device)
- unload alsa module, load oss, check the performance
- unload oss, and reload the alsa again.
  check the performance.
- if it works at this stage, get the reg dump.
  also, get pci registers.
- compare the two dumps.


TIA.

Takashi

[-- Attachment #2: ymfpci-dump.dif --]
[-- Type: application/octet-stream, Size: 887 bytes --]

Index: alsa-kernel/pci/ymfpci/ymfpci_main.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/pci/ymfpci/ymfpci_main.c,v
retrieving revision 1.38
diff -u -r1.38 ymfpci_main.c
--- alsa-kernel/pci/ymfpci/ymfpci_main.c	23 Jun 2003 09:19:29 -0000	1.38
+++ alsa-kernel/pci/ymfpci/ymfpci_main.c	17 Jul 2003 14:42:23 -0000
@@ -1880,9 +1880,12 @@
 static void snd_ymfpci_proc_read(snd_info_entry_t *entry, 
 				 snd_info_buffer_t * buffer)
 {
-	// ymfpci_t *chip = snd_magic_cast(ymfpci_t, private_data, return);
+	ymfpci_t *chip = snd_magic_cast(ymfpci_t, entry->private_data, return);
+	int i;
 	
 	snd_iprintf(buffer, "YMFPCI\n\n");
+	for (i = 0; i <= YDSXGR_WORKBASE; i += 4)
+		snd_iprintf(buffer, "%04x: %04x\n", i, snd_ymfpci_readl(chip, i));
 }
 
 static int __devinit snd_ymfpci_proc_init(snd_card_t * card, ymfpci_t *chip)

Re: Re: alsa 0.9.5 - ymfpci - Yay!

[tom burkart]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 663 bytes --]

On Jul 17, Takashi Iwai wrote:

> - unload alsa module, load oss, check the performance
Ok, works as before.

> - unload oss, and reload the alsa again.
It didn't want to do it for quite a while - I eventually got to repeat
it...  There are a lot of artifacts in the sound that are not there when
oss is active - may leave that for another day...

The attached patch I got from Jaroslav some time ago when he was trying to
chase the same bug - it was still applied.

The other diff is the differences in the ymfpci output.  The lspci output
is identical over before (alsa), oss, after (alsa) - not supplied.
I still have all the original files if required.

tom.

[-- Attachment #2: Type: TEXT/PLAIN, Size: 338 bytes --]

--- alsa-driver-0.9.4/alsa-kernel/pci/ymfpci/ymfpci.c.org	Tue May  6 00:14:59 2003
+++ alsa-driver-0.9.4/alsa-kernel/pci/ymfpci/ymfpci.c	Fri Jun 13 09:42:37 2003
@@ -245,6 +245,8 @@
 	}
 	pci_set_drvdata(pci, chip);
 	dev++;
+	legacy_ctrl = 0x907f;
+	pci_write_config_word(pci, PCIR_DSXG_LEGACY, legacy_ctrl);
 	return 0;
 }
 

[-- Attachment #3: Type: TEXT/PLAIN, Size: 869 bytes --]

--- before-ymfpci	Fri Jul 18 13:12:11 2003
+++ after-ymfpci	Fri Jul 18 13:57:47 2003
@@ -24,7 +24,7 @@
 0054: ff00ff
 0058: 555500ff
 005c: 0000
-0060: 208000
+0060: 1c8000
 0064: 26800f
 0068: 80000000
 006c: 0000
@@ -32,16 +32,16 @@
 0074: 0000
 0078: 0000
 007c: 0000
-0080: 31e731e7
-0084: 31e731e7
-0088: 31e731e7
+0080: 3fff3fff
+0084: 3fff3fff
+0088: 3fff3fff
 008c: 0000
 0090: 0000
 0094: 0000
-0098: 31e731e7
+0098: 0000
 009c: 0000
 00a0: 0000
-00a4: 0000
+00a4: 3fff3fff
 00a8: 3fff3fff
 00ac: 3fff3fff
 00b0: 0000
@@ -65,7 +65,7 @@
 00f8: 0000
 00fc: 0000
 0100: 0000
-0104: 0001
+0104: 0000
 0108: 0000
 010c: 0000
 0110: 0000
@@ -86,7 +86,7 @@
 014c: 0100
 0150: 0000
 0154: 0018
-0158: 4808000
-015c: 480be00
-0160: 480bf00
-0164: 480c000
+0158: 3ac8000
+015c: 3acbe00
+0160: 3acbf00
+0164: 3acc000

Re: PATCH: acore/wrappers.c hosed snprintf

[Matthias Andree]

Hi,

six weeks ago, I sent this patch to fix bugs in wrappers.c that are
triggered when the kernel throws warnings in ./configure (-Werror is
used there, it should not -- I've seen warnings by some kernel versions
depending on GCC version).

I haven't yet seen any response, therefore full quote.

feed this mail into this pipe: grep '^> ' | sed 's/^> //' | patch

Please report if this patch is scheduled for inclusion into alsa-driver,
is rejected permanently or other feelings you may have.

Thanks in advance.

> for some reason, alsa-driver-0.9.5 chose to use its snd_compat_*snprintf
> stuff on Linux 2.4.22-pre3-ac1. This triggered bugs in wrappers.c that
> break the compile, trivial patch below. Please apply.
>
> --- ./acore/wrappers.c.orig	2003-07-13 13:53:29.000000000 +0200
> +++ ./acore/wrappers.c	2003-07-13 13:53:43.000000000 +0200
> @@ -58,7 +58,6 @@
>  int snd_compat_vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
>  {
>  	char *ptr = (void *) __get_free_pages(GFP_KERNEL, 0);
> -	va_list args;
>  	if (ptr == NULL) {	/* should not happen - GFP_KERNEL has wait flag */
>  		if (size > 0)
>  			buf[0] = 0;
> @@ -73,9 +72,10 @@
>  int snd_compat_snprintf(char *buf, size_t size, const char * fmt, ...)
>  {
>  	int res;
> +	va_list args;
>  
>  	va_start(args, fmt);
> -	res = snd_compat_vsnprintf(buf, size, args);
> +	res = snd_compat_vsnprintf(buf, size, fmt, args);
>  	va_end(args);
>  	return res;
>  }

-- 
Matthias Andree

Encrypt your mail: my GnuPG key ID is 0x052E7D95


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Re: PATCH: acore/wrappers.c hosed snprintf

[Takashi Iwai]

At Mon, 01 Sep 2003 17:40:25 +0200,
Matthias Andree wrote:
> 
> Hi,
> 
> six weeks ago, I sent this patch to fix bugs in wrappers.c that are
> triggered when the kernel throws warnings in ./configure (-Werror is
> used there, it should not -- I've seen warnings by some kernel versions
> depending on GCC version).
> 
> I haven't yet seen any response, therefore full quote.
> 
> feed this mail into this pipe: grep '^> ' | sed 's/^> //' | patch
> 
> Please report if this patch is scheduled for inclusion into alsa-driver,
> is rejected permanently or other feelings you may have.

your patch was already included (at least, 0.9.6 tarball includes
it).


thanks,

Takashi


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Re: PATCH: acore/wrappers.c hosed snprintf

[Matthias Andree]

Takashi Iwai schrieb am 2003-09-01:

> your patch was already included (at least, 0.9.6 tarball includes
> it).

Ah, ok, so I'll remove the reminder flag here. Thanks.

-- 
Matthias Andree

Encrypt your mail: my GnuPG key ID is 0x052E7D95


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