Date: Wed, 3 Aug 2005 08:37:13 GMT From: Johannes Weiner <hnaz@buetow.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/84507: fm801: Not every card supports variable rate Message-ID: <200508030837.j738bDQw068677@www.freebsd.org> Resent-Message-ID: <200508030840.j738eADs077860@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 84507
>Category: kern
>Synopsis: fm801: Not every card supports variable rate
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Aug 03 08:40:10 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Johannes Weiner
>Release: 5.4
>Organization:
>Environment:
FreeBSD paranoise.fuckthis.shit 5.4-STABLE FreeBSD 5.4-STABLE #0: Wed Aug 3 09:28:34 CEST 2005 root@paranoise.fuckthis.shit:/usr/obj/usr/src/sys/PARANOISE i386
>Description:
I have a fm801 soundcard and figured out, that when i seeked within a track, no matter which player - yep, when fm801ch_setspeed() is executed, the sound played double pitched or faster.
Here the dmesg output when loading snd_fm801.ko:
<snip>
pci0:10:0: reprobing on driver added
pcm0: <Forte Media FM801 Audio Controller> port 0xd800-0xd87f irq 18 at device 10.0 on pci0
pcm0: failed: rid 0x10 is ioport, requested 3
pcm0: <Wolfson WM9704Q AC97 Codec (id = 0x574d4c04)>
pcm0: Codec features 18 bit DAC, 18 bit ADC, 6 bit master volume, Wolfson Microelectronics 3D Enhancement
pcm0: Primary codec extended features variable rate PCM, surround DAC, AMAP
pcm0: [GIANT-LOCKED]
pcm0: sndbuf_setmap a7a6000, 1000; 0xc1a32000 -> a7a6000
pcm0: sndbuf_setmap be16000, 1000; 0xc1b02000 -> be16000
found-> vendor=0x1319, dev=0x0802, revid=0xb2
bus=0, slot=10, func=1
class=09-80-00, hdrtype=0x00, mfdev=1
cmdreg=0x0107, statreg=0x0290, cachelnsz=0 (dwords)
lattimer=0x20 (960 ns), mingnt=0x04 (1000 ns), maxlat=0x28 (10000 ns)
powerspec 1 supports D0 D1 D3 current D3
pci0:10:1: reprobing on driver added
pci0:10:1: Transition from D3 to D0
pci0:10:1: Transition from D0 to D3
pci1: driver added
<snap>
>How-To-Repeat:
Provocate fm801ch_setspeed()-call when having a messy soundcard.
>Fix:
I figured out the correct rate where sound is normal and made this rate static:
<snip>
/* My soundcard doesn't support this well..
* for (i = 0; i < 10 && fm801_rates[i].limit <= speed; i++) ;
*/
i = 9;
<snap>
This is how i figured out the correct rate:
<snip>
printf("hnaz debugs speed-rate: %d\n", fm801_rates[i].rate);
<snap>
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200508030837.j738bDQw068677>