include/sound/uda134x.h

   1 /*
   2  * uda134x.h  --  UDA134x ALSA SoC Codec driver
   3  *
   4  * Copyright 2007 Dension Audio Systems Ltd.
   5  * Author: Zoltan Devai
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #ifndef _UDA134X_H
  13 #define _UDA134X_H
  14
  15 #include <sound/l3.h>
  16
  17 struct uda134x_platform_data {
  18         struct l3_pins l3;
  19         void (*power) (int);
  20         int model;
  21         /*
  22           ALSA SOC usually puts the device in standby mode when it's not used
  23           for sometime. If you unset is_powered_on_standby the driver will
  24           turn off the ADC/DAC when this callback is invoked and turn it back
  25           on when needed. Unfortunately this will result in a very light bump
  26           (it can be audible only with good earphones). If this bothers you
  27           set is_powered_on_standby, you will have slightly higher power
  28           consumption. Please note that sending the L3 command for ADC is
  29           enough to make the bump, so it doesn't make difference if you
  30           completely take off power from the codec.
  31         */
  32         int is_powered_on_standby;
  33 #define UDA134X_UDA1340 1
  34 #define UDA134X_UDA1341 2
  35 #define UDA134X_UDA1344 3
  36 #define UDA134X_UDA1345 4
  37 };
  38
  39 #endif /* _UDA134X_H */