From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?iso-8859-1?q?P=E9ter_Ujfalusi?= Subject: Re: HELP:How to power down TWL5030 Voice/Bluetooth sidetone PGA? Date: Fri, 10 Jun 2011 17:16:13 +0300 Message-ID: <201106101716.14008.peter.ujfalusi@ti.com> References: <201106101048.45966.peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from bear.ext.ti.com ([192.94.94.41]:60611 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755708Ab1FJOQR convert rfc822-to-8bit (ORCPT ); Fri, 10 Jun 2011 10:16:17 -0400 In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: onlyfever Cc: "linux-omap@vger.kernel.org" , "alsa-devel@alsa-project.org" > 2011/6/10 P=E9ter Ujfalusi : > 1. when use Headset: > uplink routing:HSMIC --> AVTXR2PGA & AVTXL2PGA --> VDXS & VDXM --> PC= M_VDX > downlink routing:PCM_VDR --> VDR --> VRXPGA Fine gain --> DAC voice > --> VDL_GAIN Analog PGA --> HSOL/HSOR Thanks =20 > I check the loopbacks,it seems that all Loopbacks have been disabled. > bash-3.2# alsa_amixer |grep Loopback > Simple mixer control 'Left Digital Loopback',0 > Simple mixer control 'Left1 Analog Loopback',0 > Simple mixer control 'Left2 Analog Loopback',0 > Simple mixer control 'Right Digital Loopback',0 > Simple mixer control 'Right1 Analog Loopback',0 > Simple mixer control 'Right2 Analog Loopback',0 > Simple mixer control 'Voice Analog Loopback',0 > Simple mixer control 'Voice Digital Loopback',0 Can you check with: amixer | grep -A 6 Loopback > The sidetone is become louder if I increase the VSTPGA, > and when I increase the VDL_GAIN Analog PGA,the sidetone is become lo= uder > too. But the VRXPGA seems don't affect the sidetone,so I think VSTPGA > cause the sidetone. >=20 > 2.when use Bluetooth: > uplink routing:BT_PCM_VDR --> BTTXPGA --> VDXM --> PCM_VDX > downlink routing:PCM_VDR --> VDR --> BTRXPGA --> BT_PCM_VDX >=20 > When use Bluetooth interface,I don't know if something else can cause > sidetone except BTSTPGA. I don't have a board, which have this feature, but I'll check the TRM a= nd the=20 code, if I can find something. Probably worth to find the ERRATA docume= nt as=20 well... --=20 P=E9ter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html