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 struct regulator_init_data *init_data;
  26 };
  27
  28 #define WM8994_CONFIGURE_GPIO 0x10000
  29
  30 #define WM8994_DRC_REGS 5
  31 #define WM8994_EQ_REGS  20
  32 #define WM8958_MBC_CUTOFF_REGS 20
  33 #define WM8958_MBC_COEFF_REGS  48
  34 #define WM8958_MBC_COMBINED_REGS 56
  35 #define WM8958_VSS_HPF_REGS 2
  36 #define WM8958_VSS_REGS 148
  37 #define WM8958_ENH_EQ_REGS 32
  38
  39 /**
  40  * DRC configurations are specified with a label and a set of register
  41  * values to write (the enable bits will be ignored).  At runtime an
  42  * enumerated control will be presented for each DRC block allowing
  43  * the user to choose the configration to use.
  44  *
  45  * Configurations may be generated by hand or by using the DRC control
  46  * panel provided by the WISCE - see  http://www.wolfsonmicro.com/wisce/
  47  * for details.
  48  */
  49 struct wm8994_drc_cfg {
  50         const char *name;
  51         u16 regs[WM8994_DRC_REGS];
  52 };
  53
  54 /**
  55  * ReTune Mobile configurations are specified with a label, sample
  56  * rate and set of values to write (the enable bits will be ignored).
  57  *
  58  * Configurations are expected to be generated using the ReTune Mobile
  59  * control panel in WISCE - see http://www.wolfsonmicro.com/wisce/
  60  */
  61 struct wm8994_retune_mobile_cfg {
  62         const char *name;
  63         unsigned int rate;
  64         u16 regs[WM8994_EQ_REGS];
  65 };
  66
  67 /**
  68  * Multiband compressor configurations are specified with a label and
  69  * two sets of values to write.  Configurations are expected to be
  70  * generated using the multiband compressor configuration panel in
  71  * WISCE - see http://www.wolfsonmicro.com/wisce/
  72  */
  73 struct wm8958_mbc_cfg {
  74         const char *name;
  75         u16 cutoff_regs[WM8958_MBC_CUTOFF_REGS];
  76         u16 coeff_regs[WM8958_MBC_COEFF_REGS];
  77
  78         /* Coefficient layout when using MBC+VSS firmware */
  79         u16 combined_regs[WM8958_MBC_COMBINED_REGS];
  80 };
  81
  82 /**
  83  * VSS HPF configurations are specified with a label and two values to
  84  * write.  Configurations are expected to be generated using the
  85  * multiband compressor configuration panel in WISCE - see
  86  * http://www.wolfsonmicro.com/wisce/
  87  */
  88 struct wm8958_vss_hpf_cfg {
  89         const char *name;
  90         u16 regs[WM8958_VSS_HPF_REGS];
  91 };
  92
  93 /**
  94  * VSS configurations are specified with a label and array of values
  95  * to write.  Configurations are expected to be generated using the
  96  * multiband compressor configuration panel in WISCE - see
  97  * http://www.wolfsonmicro.com/wisce/
  98  */
  99 struct wm8958_vss_cfg {
 100         const char *name;
 101         u16 regs[WM8958_VSS_REGS];
 102 };
 103
 104 /**
 105  * Enhanced EQ configurations are specified with a label and array of
 106  * values to write.  Configurations are expected to be generated using
 107  * the multiband compressor configuration panel in WISCE - see
 108  * http://www.wolfsonmicro.com/wisce/
 109  */
 110 struct wm8958_enh_eq_cfg {
 111         const char *name;
 112         u16 regs[WM8958_ENH_EQ_REGS];
 113 };
 114
 115 /**
 116  * Microphone detection rates, used to tune response rates and power
 117  * consumption for WM8958/WM1811 microphone detection.
 118  *
 119  * @sysclk: System clock rate to use this configuration for.
 120  * @idle: True if this configuration should use when no accessory is detected,
 121  *        false otherwise.
 122  * @start: Value for MICD_BIAS_START_TIME register field (not shifted).
 123  * @rate: Value for MICD_RATE register field (not shifted).
 124  */
 125 struct wm8958_micd_rate {
 126         int sysclk;
 127         bool idle;
 128         int start;
 129         int rate;
 130 };
 131
 132 struct wm8994_pdata {
 133         int gpio_base;
 134
 135         /**
 136          * Default values for GPIOs if non-zero, WM8994_CONFIGURE_GPIO
 137          * can be used for all zero values.
 138          */
 139         int gpio_defaults[WM8994_NUM_GPIO];
 140
 141         struct wm8994_ldo_pdata ldo[WM8994_NUM_LDO];
 142
 143         int irq_base;  /** Base IRQ number for WM8994, required for IRQs */
 144         unsigned long irq_flags; /** user irq flags */
 145
 146         int num_drc_cfgs;
 147         struct wm8994_drc_cfg *drc_cfgs;
 148
 149         int num_retune_mobile_cfgs;
 150         struct wm8994_retune_mobile_cfg *retune_mobile_cfgs;
 151
 152         int num_mbc_cfgs;
 153         struct wm8958_mbc_cfg *mbc_cfgs;
 154
 155         int num_vss_cfgs;
 156         struct wm8958_vss_cfg *vss_cfgs;
 157
 158         int num_vss_hpf_cfgs;
 159         struct wm8958_vss_hpf_cfg *vss_hpf_cfgs;
 160
 161         int num_enh_eq_cfgs;
 162         struct wm8958_enh_eq_cfg *enh_eq_cfgs;
 163
 164         int num_micd_rates;
 165         struct wm8958_micd_rate *micd_rates;
 166
 167         /* Power up delays to add after microphone bias power up (ms) */
 168         int micb1_delay;
 169         int micb2_delay;
 170
 171         /* LINEOUT can be differential or single ended */
 172         unsigned int lineout1_diff:1;
 173         unsigned int lineout2_diff:1;
 174
 175         /* Common mode feedback */
 176         unsigned int lineout1fb:1;
 177         unsigned int lineout2fb:1;
 178
 179         /* IRQ for microphone detection if brought out directly as a
 180          * signal.
 181          */
 182         int micdet_irq;
 183
 184         /* WM8994 microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
 185         unsigned int micbias1_lvl:1;
 186         unsigned int micbias2_lvl:1;
 187
 188         /* WM8994 jack detect threashold levels, see datasheet for values */
 189         unsigned int jd_scthr:2;
 190         unsigned int jd_thr:2;
 191
 192         /* Configure WM1811 jack detection for use with external capacitor */
 193         unsigned int jd_ext_cap:1;
 194
 195         /* WM8958 microphone bias configuration */
 196         int micbias[2];
 197
 198         /* WM8958 microphone detection ranges */
 199         u16 micd_lvl_sel;
 200
 201         /* Disable the internal pull downs on the LDOs if they are
 202          * always driven (eg, connected to an always on supply or
 203          * GPIO that always drives an output.  If they float power
 204          * consumption will rise.
 205          */
 206         bool ldo_ena_always_driven;
 207
 208         /*
 209          * SPKMODE must be pulled internally by the device on this
 210          * system.
 211          */
 212         bool spkmode_pu;
 213 };
 214
 215 #endif