linux/include/sound/wm2200.h
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   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
  17enum wm2200_in_mode {
  18        WM2200_IN_SE = 0,
  19        WM2200_IN_DIFF = 1,
  20        WM2200_IN_DMIC = 2,
  21};
  22
  23enum wm2200_dmic_sup {
  24        WM2200_DMIC_SUP_MICVDD = 0,
  25        WM2200_DMIC_SUP_MICBIAS1 = 1,
  26        WM2200_DMIC_SUP_MICBIAS2 = 2,
  27};
  28
  29enum 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
  40struct 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
  47struct 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
  62
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