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 #define WM8994_NUM_AIF   3
  21
  22 struct wm8994_ldo_pdata {
  23         /** GPIOs to enable regulator, 0 or less if not available */
  24         int enable;
  25
  26         const struct regulator_init_data *init_data;
  27 };
  28
  29 #define WM8994_CONFIGURE_GPIO 0x10000
  30
  31 #define WM8994_DRC_REGS 5
  32 #define WM8994_EQ_REGS  20
  33 #define WM8958_MBC_CUTOFF_REGS 20
  34 #define WM8958_MBC_COEFF_REGS  48
  35 #define WM8958_MBC_COMBINED_REGS 56
  36 #define WM8958_VSS_HPF_REGS 2
  37 #define WM8958_VSS_REGS 148
  38 #define WM8958_ENH_EQ_REGS 32
  39
  40 /**
  41  * DRC configurations are specified with a label and a set of register
  42  * values to write (the enable bits will be ignored).  At runtime an
  43  * enumerated control will be presented for each DRC block allowing
  44  * the user to choose the configration to use.
  45  *
  46  * Configurations may be generated by hand or by using the DRC control
  47  * panel provided by the WISCE - see  http://www.wolfsonmicro.com/wisce/
  48  * for details.
  49  */
  50 struct wm8994_drc_cfg {
  51         const char *name;
  52         u16 regs[WM8994_DRC_REGS];
  53 };
  54
  55 /**
  56  * ReTune Mobile configurations are specified with a label, sample
  57  * rate and set of values to write (the enable bits will be ignored).
  58  *
  59  * Configurations are expected to be generated using the ReTune Mobile
  60  * control panel in WISCE - see http://www.wolfsonmicro.com/wisce/
  61  */
  62 struct wm8994_retune_mobile_cfg {
  63         const char *name;
  64         unsigned int rate;
  65         u16 regs[WM8994_EQ_REGS];
  66 };
  67
  68 /**
  69  * Multiband compressor configurations are specified with a label and
  70  * two sets of values to write.  Configurations are expected to be
  71  * generated using the multiband compressor configuration panel in
  72  * WISCE - see http://www.wolfsonmicro.com/wisce/
  73  */
  74 struct wm8958_mbc_cfg {
  75         const char *name;
  76         u16 cutoff_regs[WM8958_MBC_CUTOFF_REGS];
  77         u16 coeff_regs[WM8958_MBC_COEFF_REGS];
  78
  79         /* Coefficient layout when using MBC+VSS firmware */
  80         u16 combined_regs[WM8958_MBC_COMBINED_REGS];
  81 };
  82
  83 /**
  84  * VSS HPF configurations are specified with a label and two values to
  85  * write.  Configurations are expected to be generated using the
  86  * multiband compressor configuration panel in WISCE - see
  87  * http://www.wolfsonmicro.com/wisce/
  88  */
  89 struct wm8958_vss_hpf_cfg {
  90         const char *name;
  91         u16 regs[WM8958_VSS_HPF_REGS];
  92 };
  93
  94 /**
  95  * VSS configurations are specified with a label and array of values
  96  * to write.  Configurations are expected to be generated using the
  97  * multiband compressor configuration panel in WISCE - see
  98  * http://www.wolfsonmicro.com/wisce/
  99  */
 100 struct wm8958_vss_cfg {
 101         const char *name;
 102         u16 regs[WM8958_VSS_REGS];
 103 };
 104
 105 /**
 106  * Enhanced EQ configurations are specified with a label and array of
 107  * values to write.  Configurations are expected to be generated using
 108  * the multiband compressor configuration panel in WISCE - see
 109  * http://www.wolfsonmicro.com/wisce/
 110  */
 111 struct wm8958_enh_eq_cfg {
 112         const char *name;
 113         u16 regs[WM8958_ENH_EQ_REGS];
 114 };
 115
 116 /**
 117  * Microphone detection rates, used to tune response rates and power
 118  * consumption for WM8958/WM1811 microphone detection.
 119  *
 120  * @sysclk: System clock rate to use this configuration for.
 121  * @idle: True if this configuration should use when no accessory is detected,
 122  *        false otherwise.
 123  * @start: Value for MICD_BIAS_START_TIME register field (not shifted).
 124  * @rate: Value for MICD_RATE register field (not shifted).
 125  */
 126 struct wm8958_micd_rate {
 127         int sysclk;
 128         bool idle;
 129         int start;
 130         int rate;
 131 };
 132
 133 struct wm8994_pdata {
 134         int gpio_base;
 135
 136         /**
 137          * Default values for GPIOs if non-zero, WM8994_CONFIGURE_GPIO
 138          * can be used for all zero values.
 139          */
 140         int gpio_defaults[WM8994_NUM_GPIO];
 141
 142         struct wm8994_ldo_pdata ldo[WM8994_NUM_LDO];
 143
 144         int irq_base;  /** Base IRQ number for WM8994, required for IRQs */
 145         unsigned long irq_flags; /** user irq flags */
 146
 147         int num_drc_cfgs;
 148         struct wm8994_drc_cfg *drc_cfgs;
 149
 150         int num_retune_mobile_cfgs;
 151         struct wm8994_retune_mobile_cfg *retune_mobile_cfgs;
 152
 153         int num_mbc_cfgs;
 154         struct wm8958_mbc_cfg *mbc_cfgs;
 155
 156         int num_vss_cfgs;
 157         struct wm8958_vss_cfg *vss_cfgs;
 158
 159         int num_vss_hpf_cfgs;
 160         struct wm8958_vss_hpf_cfg *vss_hpf_cfgs;
 161
 162         int num_enh_eq_cfgs;
 163         struct wm8958_enh_eq_cfg *enh_eq_cfgs;
 164
 165         int num_micd_rates;
 166         struct wm8958_micd_rate *micd_rates;
 167
 168         /* Power up delays to add after microphone bias power up (ms) */
 169         int micb1_delay;
 170         int micb2_delay;
 171
 172         /* LINEOUT can be differential or single ended */
 173         unsigned int lineout1_diff:1;
 174         unsigned int lineout2_diff:1;
 175
 176         /* Common mode feedback */
 177         unsigned int lineout1fb:1;
 178         unsigned int lineout2fb:1;
 179
 180         /* Delay between detecting a jack and starting microphone
 181          * detect (specified in ms)
 182          */
 183         int micdet_delay;
 184
 185         /* IRQ for microphone detection if brought out directly as a
 186          * signal.
 187          */
 188         int micdet_irq;
 189
 190         /* WM8994 microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
 191         unsigned int micbias1_lvl:1;
 192         unsigned int micbias2_lvl:1;
 193
 194         /* WM8994 jack detect threashold levels, see datasheet for values */
 195         unsigned int jd_scthr:2;
 196         unsigned int jd_thr:2;
 197
 198         /* Configure WM1811 jack detection for use with external capacitor */
 199         unsigned int jd_ext_cap:1;
 200
 201         /* WM8958 microphone bias configuration */
 202         int micbias[2];
 203
 204         /* WM8958 microphone detection ranges */
 205         u16 micd_lvl_sel;
 206
 207         /* Disable the internal pull downs on the LDOs if they are
 208          * always driven (eg, connected to an always on supply or
 209          * GPIO that always drives an output.  If they float power
 210          * consumption will rise.
 211          */
 212         bool ldo_ena_always_driven;
 213
 214         /*
 215          * SPKMODE must be pulled internally by the device on this
 216          * system.
 217          */
 218         bool spkmode_pu;
 219
 220         /**
 221          * Maximum number of channels clocks will be generated for,
 222          * useful for systems where and I2S bus with multiple data
 223          * lines is mastered.
 224          */
 225         int max_channels_clocked[WM8994_NUM_AIF];
 226
 227         /**
 228          * GPIO for the IRQ pin if host only supports edge triggering
 229          */
 230         int irq_gpio;
 231 };
 232
 233 #endif