From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: AW: maestro3 hardware volume control Date: Tue, 19 Apr 2005 13:59:49 +0200 Message-ID: References: <000501c544ce$3d437530$6502a8c0@SCA600> Mime-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <000501c544ce$3d437530$6502a8c0@SCA600> 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: =?ISO-8859-1?Q?R=FCdiger?= Dabelow Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Tue, 19 Apr 2005 12:55:00 +0200, R=FCdiger Dabelow wrote: >=20 > > Von: Takashi Iwai > > Gesendet: Dienstag, 19. April 2005 11:50 > > Betreff: Re: [Alsa-devel] maestro3 hardware volume control > >=20 > > At Mon, 18 Apr 2005 15:22:58 +0200, > > rwd wrote: > > >=20 > > > Hi, > > >=20 > > > the maestro3 runs fine on my compaq evo n400c (ES1988).=20 > > Just one thing > > > remains unsolved - the 2 nice volume control buttons that=20 > > seem to be wired > > > directly to the ES1988 won't work until now.=20 > > >=20 > > > I'm relatively new to linux and not a driver programmer,=20 > > but scrolling > > > through the documentation of the chip & the driver source=20 > > quickly revealed > > > that the volume can be controlled directly by two buttons,=20 > > but the driver > > > doesn't seem make use of that.=20 > > >=20 > > > Can anybody give me a hint how to use/enable the hardware=20 > > volume control on > > > that chip? Is a major rewrite of the driver required? Maybe=20 > > some other > > > driver could do that? The es1968 seems to support hw vol,=20 > > might that driver > > > run also on the ES1988? > >=20 > > The problem is -- we don't know. We have no proper datasheet for thi= s > > chip... > >=20 > >=20 > > Takashi >=20 > Hi, > Sorry, don't understand: >=20 > the driver es1968.c enables and uses=20 >=20 > #define HWV_CONFB 0x0080 > w |=3D HWV_CONFB; /* HWV on */ > pci_write_config_word(pci, ESM_CONFIG_B, w); >=20 > and handles the irq. The es1968.c driver handles the Maestro-2, does it= ? > http://www.alsa-project.org/alsa/ftp/manuals/ess/DSMaestro2.pdf >=20 > Same registers as described in the datasheet for the > ES1988/Allegro/Maestro-3 > http://www.alsa-project.org/alsa/ftp/manuals/ess/ds1988.pdf >=20 > What info is missing?=20 The registers above didn't work at the last time we tried. Feel free to debug it :) Takashi ------------------------------------------------------- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728