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kernel/linux-imx6_3.14.28/sound/soc/codecs/tpa6130a2.h 1.95 KB
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  /*
   * ALSA SoC TPA6130A2 amplifier driver
   *
   * Copyright (C) Nokia Corporation
   *
   * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * version 2 as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
   * 02110-1301 USA
   *
   */
  
  #ifndef __TPA6130A2_H__
  #define __TPA6130A2_H__
  
  /* Register addresses */
  #define TPA6130A2_REG_CONTROL		0x01
  #define TPA6130A2_REG_VOL_MUTE		0x02
  #define TPA6130A2_REG_OUT_IMPEDANCE	0x03
  #define TPA6130A2_REG_VERSION		0x04
  
  #define TPA6130A2_CACHEREGNUM	(TPA6130A2_REG_VERSION + 1)
  
  /* Register bits */
  /* TPA6130A2_REG_CONTROL (0x01) */
  #define TPA6130A2_SWS			(0x01 << 0)
  #define TPA6130A2_TERMAL		(0x01 << 1)
  #define TPA6130A2_MODE(x)		(x << 4)
  #define TPA6130A2_MODE_STEREO		(0x00)
  #define TPA6130A2_MODE_DUAL_MONO	(0x01)
  #define TPA6130A2_MODE_BRIDGE		(0x02)
  #define TPA6130A2_MODE_MASK		(0x03)
  #define TPA6130A2_HP_EN_R		(0x01 << 6)
  #define TPA6130A2_HP_EN_L		(0x01 << 7)
  
  /* TPA6130A2_REG_VOL_MUTE (0x02) */
  #define TPA6130A2_VOLUME(x)		((x & 0x3f) << 0)
  #define TPA6130A2_MUTE_R		(0x01 << 6)
  #define TPA6130A2_MUTE_L		(0x01 << 7)
  
  /* TPA6130A2_REG_OUT_IMPEDANCE (0x03) */
  #define TPA6130A2_HIZ_R			(0x01 << 0)
  #define TPA6130A2_HIZ_L			(0x01 << 1)
  
  /* TPA6130A2_REG_VERSION (0x04) */
  #define TPA6130A2_VERSION_MASK		(0x0f)
  
  extern int tpa6130a2_add_controls(struct snd_soc_codec *codec);
  extern int tpa6130a2_stereo_enable(struct snd_soc_codec *codec, int enable);
  
  #endif /* __TPA6130A2_H__ */