Linux kernel mirror (for testing)
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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
21struct wm8994_ldo_pdata {
22 /** GPIOs to enable regulator, 0 or less if not available */
23 int enable;
24
25 const char *supply;
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 */
50struct 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 */
62struct 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 */
74struct 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 */
89struct 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 */
100struct 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 */
111struct 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 */
126struct wm8958_micd_rate {
127 int sysclk;
128 bool idle;
129 int start;
130 int rate;
131};
132
133struct 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
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 /* LINEOUT can be differential or single ended */
168 unsigned int lineout1_diff:1;
169 unsigned int lineout2_diff:1;
170
171 /* Common mode feedback */
172 unsigned int lineout1fb:1;
173 unsigned int lineout2fb:1;
174
175 /* IRQ for microphone detection if brought out directly as a
176 * signal.
177 */
178 int micdet_irq;
179
180 /* WM8994 microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
181 unsigned int micbias1_lvl:1;
182 unsigned int micbias2_lvl:1;
183
184 /* WM8994 jack detect threashold levels, see datasheet for values */
185 unsigned int jd_scthr:2;
186 unsigned int jd_thr:2;
187
188 /* WM8958 microphone bias configuration */
189 int micbias[2];
190
191 /* WM8958 microphone detection ranges */
192 u16 micd_lvl_sel;
193
194 /* Disable the internal pull downs on the LDOs if they are
195 * always driven (eg, connected to an always on supply or
196 * GPIO that always drives an output. If they float power
197 * consumption will rise.
198 */
199 bool ldo_ena_always_driven;
200
201 /*
202 * SPKMODE must be pulled internally by the device on this
203 * system.
204 */
205 bool spkmode_pu;
206};
207
208#endif