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From: Benny Morgan <gorm@cucumelo.org>
To: Richard Olsson <flame@home.se>
Cc: alsa-devel@lists.sourceforge.net, tiwai@suse.de
Subject: Re: RC7 and CS46xx (GTXP)
Date: Thu, 06 Feb 2003 16:46:30 -0500	[thread overview]
Message-ID: <3E42D7B6.6030205@cucumelo.org> (raw)
In-Reply-To: 20030201170036.47cea5c3.flame@home.se

>
>
>Replying to my own mail, I know:)
>
>I reverted the changes the recent amplifier patch did to cs46xx_lib.c
>and RC7 works perfectly - no warning in dmesg either.
>
>  
>
The cs46xx FIFO's are usually only accessed internally by the DSP. 
There's is backdoor that make it possible to access the FIFO's from the 
host.

My theory is that it's not possible to use this backdoor while the DSP 
is accesing the FIFO's
To enable the rear speakers on the Santa Cruz card this backdoor is used 
to access some GPIO's on the secondary codec.
A couple of month agoo I've changed the initialization order so: the 
rear-speakers on the Santa Cruz board was enabled was enababled before 
the DSP core was started, apparently it worked out. Now the problem 
could be that the initialization order is changed again.

/Benny




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  parent reply	other threads:[~2003-02-06 21:46 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-02-01 13:48 RC7 and CS46xx (GTXP) Richard Olsson
2003-02-01 16:00 ` Richard Olsson
2003-02-02 15:59   ` Eloy A. Paris
2003-02-03 11:21     ` Takashi Iwai
2003-02-03 12:17       ` Richard Olsson
2003-02-04 12:22         ` Takashi Iwai
2003-02-05 18:31           ` Eloy A. Paris
2003-02-09 15:53         ` Christian Esken
2003-02-06 21:46   ` Benny Morgan [this message]
2003-02-02 16:22 ` RC7 and CS46xx (GTXP) -> Terratec XFire Friedrich Ewaldt

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