From mboxrd@z Thu Jan 1 00:00:00 1970 From: Raymond Subject: Re: AC97 codec odd behaviour (STAC9708/11) / Aureal Card IS SUPPORTED! Date: Sun, 17 Jul 2005 12:12:05 +0800 Message-ID: <42D9DA95.3050002@netvigator.com> References: <1055454710.889.30.camel@localhost> <3EEFF6A5.6060102@boosthardware.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@lists.sourceforge.net Cc: openvortex-dev@nongnu.org List-Id: alsa-devel@alsa-project.org Takashi Iwai wrote: > At 12 Jun 2003 17:51:50 -0400, > Manuel Jander wrote: > >>Hi everyone, >> >>I'm facing some odd things with a Aureal MX300 with a >>AC97 codec. For some reason the AC97 interface doesnt >>set the EAPD (external amp enable) bit correctly, and i have >>to set it explicitly after calling the ac97 mixer initializer. >> >>Maybe, that the AC97 codec write function actually implemented >>for the Aureal cards "misses" some writes, but i just want to be sure >>if this bit works for other cards with a STAC9708/11 or similar >>codec that need this bit by default, or if i really need to set it >>myself ?? > > > i recommend you to do this in the card driver level. > > the use of EAPD is dependent upon the devices. also, some uses EAPD > pin for different purposes... > > > According to datasheet of STAC9708, the general purpose register (0x20) has 3D, MIX, MS, LPBK bits. Is "POP" a undocumented feature of STAC9708 ? Simple mixer control 'PCM Out Path & Mute',0 Capabilities: enum Items: 'pre 3D' 'post 3D' Item0: 'post 3D' 0-0/0: SigmaTel STAC9708,11 Capabilities : -headphone out- DAC resolution : 18-bit ADC resolution : 18-bit 3D enhancement : SigmaTel 3D Enhancement Current setup Mic gain : +0dB [+0dB] POP path : post 3D <------------------------- Sim. stereo : off 3D enhancement : off Loudness : off Mono output : MIX Mic select : Mic1 ADC/DAC loopback : off Extended ID : codec=0 rev=0 SDAC DSA=0 Extended status : SDAC numid=43,iface=MIXER,name='PCM Out Path & Mute' ; type=ENUMERATED,access=rw---,values=1,items=2 ; Item #0 'pre 3D' ; Item #1 'post 3D' : values=0 STAC9708 on other sound cards such as Soundblaster 4.1 http://thread.gmane.org/gmane.linux.alsa.devel/4818 ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click