From mboxrd@z Thu Jan 1 00:00:00 1970 From: Petr Kulhavy Subject: [PATCH] ASoC: tas571x: add input channel mixer for TAS5717/19 Date: Mon, 23 May 2016 23:12:47 +0200 Message-ID: <1464037967-24671-1-git-send-email-brain@jikos.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from fep18.mx.upcmail.net (fep18.mx.upcmail.net [62.179.121.38]) by alsa0.perex.cz (Postfix) with ESMTP id 951F1266C27 for ; Mon, 23 May 2016 23:13:52 +0200 (CEST) Received: from edge03.upcmail.net ([192.168.13.238]) by viefep18-int.chello.at (InterMail vM.8.01.05.18 201-2260-151-151-20140610) with ESMTP id <20160523211352.HRRC24796.viefep18-int.chello.at@edge03.upcmail.net> for ; Mon, 23 May 2016 23:13:52 +0200 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: lgirdwood@gmail.com, broonie@kernel.org Cc: alsa-devel@alsa-project.org, Petr Kulhavy List-Id: alsa-devel@alsa-project.org Add channel 1 and 2 input mixer registers and the related ALSA mixer controls for TAS5717/19 chips. The mixer control coefficients on the chip are linear in the range -3.99999 to +3.99999, encoded in 3.23 number format. In this patch the mixer controls are limited to 128 values from 0.0 to 1.0 in 1/64 steps. Signed-off-by: Petr Kulhavy --- sound/soc/codecs/tas571x.c | 19 +++++++++++++++++++ sound/soc/codecs/tas571x.h | 5 +++++ 2 files changed, 24 insertions(+) diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c index 39307ad..bca0e84 100644 --- a/sound/soc/codecs/tas571x.c +++ b/sound/soc/codecs/tas571x.c @@ -57,6 +57,11 @@ static int tas571x_register_size(struct tas571x_private *priv, unsigned int reg) case TAS571X_CH1_VOL_REG: case TAS571X_CH2_VOL_REG: return priv->chip->vol_reg_size; + case TAS5717_CH1_RIGHT_CH_MIX_REG: + case TAS5717_CH1_LEFT_CH_MIX_REG: + case TAS5717_CH2_LEFT_CH_MIX_REG: + case TAS5717_CH2_RIGHT_CH_MIX_REG: + return 4; default: return 1; } @@ -293,6 +298,16 @@ static const struct snd_kcontrol_new tas5717_controls[] = { TAS571X_SOFT_MUTE_REG, TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, 1, 1), + + SOC_DOUBLE_R_RANGE("CH1 Mixer Volume", + TAS5717_CH1_LEFT_CH_MIX_REG, + TAS5717_CH1_RIGHT_CH_MIX_REG, + 16, 0, 0x80, 0), + + SOC_DOUBLE_R_RANGE("CH2 Mixer Volume", + TAS5717_CH2_LEFT_CH_MIX_REG, + TAS5717_CH2_RIGHT_CH_MIX_REG, + 16, 0, 0x80, 0), }; static const struct reg_default tas5717_reg_defaults[] = { @@ -303,6 +318,10 @@ static const struct reg_default tas5717_reg_defaults[] = { { 0x08, 0x00c0 }, { 0x09, 0x00c0 }, { 0x1b, 0x82 }, + { TAS5717_CH1_RIGHT_CH_MIX_REG, 0x0 }, + { TAS5717_CH1_LEFT_CH_MIX_REG, 0x800000}, + { TAS5717_CH2_LEFT_CH_MIX_REG, 0x0 }, + { TAS5717_CH2_RIGHT_CH_MIX_REG, 0x800000}, }; static const struct regmap_config tas5717_regmap_config = { diff --git a/sound/soc/codecs/tas571x.h b/sound/soc/codecs/tas571x.h index 0aee471..b4175d6 100644 --- a/sound/soc/codecs/tas571x.h +++ b/sound/soc/codecs/tas571x.h @@ -30,4 +30,9 @@ #define TAS571X_OSC_TRIM_REG 0x1b +#define TAS5717_CH1_RIGHT_CH_MIX_REG 0x72 +#define TAS5717_CH1_LEFT_CH_MIX_REG 0x73 +#define TAS5717_CH2_LEFT_CH_MIX_REG 0x76 +#define TAS5717_CH2_RIGHT_CH_MIX_REG 0x77 + #endif /* _TAS571X_H */ -- 2.5.0