Hi Takashi, On Tue, Jul 08, 2003 at 12:50:05PM +0200, Takashi Iwai wrote: > > > One issue is to note, I don't know if this is a problem with the ad1848 > > driver in general or what; if I cat a 11025hz mono 8-bit file to > > /dev/dsp, the sound comes out verrrrry slllloooowwwllly. But using > > aplay, it works fine. > > could you check the parameters in /proc/asound/card0/pcm0p/sub0/* > during playback via oss?
The results are pasted below -- what is strange is that aplay identifies the file as 11025Hz but apparently the OSS driver thinks it is 8000Hz data. > > I am not sure the best way to test the power managmeent code -- it > > doesn't crash the machine at least. ;) > > it looks ok - but i guess we need to restore the registers (mixer > status, etc) too. You are right -- I just checked the registers before and after flipping that bit, and it seems they are set to default values afterwards, which would seem to support the possibility that this is a power management feature. The main thing I was wondering about is if some other machine with a AD1848 goes into D0 for instance, and the suspend function does nothing (since it is not a thinkpad), is the system still in an ok state as long as the card's status is not set to D0 when the card is actually not in D0? Does that make sense? --------------------------------------------------------------------- <start of playback> $ cat /proc/asound/card0/pcm0p/sub0/* no setup card: 0 device: 0 subdevice: 0 stream: PLAYBACK id: AD1848 name: CS4248 subname: subdevice #0 class: 0 subclass: 0 subdevices_count: 1 subdevices_avail: 0 64 state: OPEN trigger_time: -1061273892.-1072503897 tstamp : -1071322800.-1071322416 delay : -1056799360 avail : -1056014772 avail_max : 3747840 ----- hw_ptr : 0 appl_ptr : 0 no setup <little later in playback> $ cat /proc/asound/card0/pcm0p/sub0/* access: RW_INTERLEAVED format: U8 subformat: STD channels: 1 rate: 8000 (8000/1) period_size: 4096 buffer_size: 65536 tick_time: 10000 OSS format: U8 OSS channels: 1 OSS rate: 8000 OSS period bytes: 4096 OSS periods: 16 card: 0 device: 0 subdevice: 0 stream: PLAYBACK id: AD1848 name: CS4248 subname: subdevice #0 class: 0 subclass: 0 subdevices_count: 1 subdevices_avail: 0 64 state: DRAINING trigger_time: 1057672530.000584530 tstamp : 1057672533.000162630 delay : 8029 avail : 57507 avail_max : 61467 ----- hw_ptr : 20643 appl_ptr : 28672 tstamp_mode: NONE period_step: 1 sleep_min: 0 avail_min: 4096 xfer_align: 1 start_threshold: 1 stop_threshold: 65536 silence_threshold: 0 silence_size: 0 boundary: 1073741824 -- Ryan Underwood, <nemesis at icequake.net>, icq=10317253 ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100006ave/direct;at.asp_061203_01/01 _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
