include/linux/mfd/wm8994/pdata.h

   1 /*
   2  * include/linux/mfd/wm8994/pdata.h -- Platform data for WM8994
   3  *
   4  * Copyright 2009 Wolfson Microelectronics PLC.
   5  *
   6  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   7  *
   8  *  This program is free software; you can redistribute  it and/or modify it
   9  *  under  the terms of  the GNU General  Public License as published by the
  10  *  Free Software Foundation;  either version 2 of the  License, or (at your
  11  *  option) any later version.
  12  *
  13  */
  14
  15 #ifndef __MFD_WM8994_PDATA_H__
  16 #define __MFD_WM8994_PDATA_H__
  17
  18 #define WM8994_NUM_LDO   2
  19 #define WM8994_NUM_GPIO 11
  20
  21 struct wm8994_ldo_pdata {
  22         /** GPIOs to enable regulator, 0 or less if not available */
  23         int enable;
  24
  25         const char *supply;
  26         struct regulator_init_data *init_data;
  27 };
  28
  29 #define WM8994_CONFIGURE_GPIO 0x8000
  30
  31 #define WM8994_DRC_REGS 5
  32 #define WM8994_EQ_REGS  19
  33
  34 /**
  35  * DRC configurations are specified with a label and a set of register
  36  * values to write (the enable bits will be ignored).  At runtime an
  37  * enumerated control will be presented for each DRC block allowing
  38  * the user to choose the configration to use.
  39  *
  40  * Configurations may be generated by hand or by using the DRC control
  41  * panel provided by the WISCE - see  http://www.wolfsonmicro.com/wisce/
  42  * for details.
  43  */
  44 struct wm8994_drc_cfg {
  45         const char *name;
  46         u16 regs[WM8994_DRC_REGS];
  47 };
  48
  49 /**
  50  * ReTune Mobile configurations are specified with a label, sample
  51  * rate and set of values to write (the enable bits will be ignored).
  52  *
  53  * Configurations are expected to be generated using the ReTune Mobile
  54  * control panel in WISCE - see http://www.wolfsonmicro.com/wisce/
  55  */
  56 struct wm8994_retune_mobile_cfg {
  57         const char *name;
  58         unsigned int rate;
  59         u16 regs[WM8994_EQ_REGS];
  60 };
  61
  62 struct wm8994_pdata {
  63         int gpio_base;
  64
  65         /**
  66          * Default values for GPIOs if non-zero, WM8994_CONFIGURE_GPIO
  67          * can be used for all zero values.
  68          */
  69         int gpio_defaults[WM8994_NUM_GPIO];
  70
  71         struct wm8994_ldo_pdata ldo[WM8994_NUM_LDO];
  72
  73
  74         int num_drc_cfgs;
  75         struct wm8994_drc_cfg *drc_cfgs;
  76
  77         int num_retune_mobile_cfgs;
  78         struct wm8994_retune_mobile_cfg *retune_mobile_cfgs;
  79
  80         /* LINEOUT can be differential or single ended */
  81         unsigned int lineout1_diff:1;
  82         unsigned int lineout2_diff:1;
  83
  84         /* Common mode feedback */
  85         unsigned int lineout1fb:1;
  86         unsigned int lineout2fb:1;
  87
  88         /* Microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
  89         unsigned int micbias1_lvl:1;
  90         unsigned int micbias2_lvl:1;
  91
  92         /* Jack detect threashold levels, see datasheet for values */
  93         unsigned int jd_scthr:2;
  94         unsigned int jd_thr:2;
  95 };
  96
  97 #endif