include/sound/wm2200.h

   1 /*
   2  * linux/sound/wm2200.h -- Platform data for WM2200
   3  *
   4  * Copyright 2012 Wolfson Microelectronics. PLC.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef __LINUX_SND_WM2200_H
  12 #define __LINUX_SND_WM2200_H
  13
  14 #define WM2200_GPIO_SET 0x10000
  15 #define WM2200_MAX_MICBIAS 2
  16
  17 enum wm2200_in_mode {
  18         WM2200_IN_SE = 0,
  19         WM2200_IN_DIFF = 1,
  20         WM2200_IN_DMIC = 2,
  21 };
  22
  23 enum wm2200_dmic_sup {
  24         WM2200_DMIC_SUP_MICVDD = 0,
  25         WM2200_DMIC_SUP_MICBIAS1 = 1,
  26         WM2200_DMIC_SUP_MICBIAS2 = 2,
  27 };
  28
  29 enum wm2200_mbias_lvl {
  30         WM2200_MBIAS_LVL_1V5 = 1,
  31         WM2200_MBIAS_LVL_1V8 = 2,
  32         WM2200_MBIAS_LVL_1V9 = 3,
  33         WM2200_MBIAS_LVL_2V0 = 4,
  34         WM2200_MBIAS_LVL_2V2 = 5,
  35         WM2200_MBIAS_LVL_2V4 = 6,
  36         WM2200_MBIAS_LVL_2V5 = 7,
  37         WM2200_MBIAS_LVL_2V6 = 8,
  38 };
  39
  40 struct wm2200_micbias {
  41         enum wm2200_mbias_lvl mb_lvl;      /** Regulated voltage */
  42         unsigned int discharge:1;          /** Actively discharge */
  43         unsigned int fast_start:1;         /** Enable aggressive startup ramp rate */
  44         unsigned int bypass:1;             /** Use bypass mode */
  45 };
  46
  47 struct wm2200_pdata {
  48         int reset;      /** GPIO controlling /RESET, if any */
  49         int ldo_ena;    /** GPIO controlling LODENA, if any */
  50         int irq_flags;
  51
  52         int gpio_defaults[4];
  53
  54         enum wm2200_in_mode in_mode[3];
  55         enum wm2200_dmic_sup dmic_sup[3];
  56
  57         /** MICBIAS configurations */
  58         struct wm2200_micbias micbias[WM2200_MAX_MICBIAS];
  59 };
  60
  61 #endif