Linux kernel mirror (for testing)
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linux
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
22struct wm8994_ldo_pdata {
23 const struct regulator_init_data *init_data;
24};
25
26#define WM8994_CONFIGURE_GPIO 0x10000
27
28#define WM8994_DRC_REGS 5
29#define WM8994_EQ_REGS 20
30#define WM8958_MBC_CUTOFF_REGS 20
31#define WM8958_MBC_COEFF_REGS 48
32#define WM8958_MBC_COMBINED_REGS 56
33#define WM8958_VSS_HPF_REGS 2
34#define WM8958_VSS_REGS 148
35#define WM8958_ENH_EQ_REGS 32
36
37/**
38 * DRC configurations are specified with a label and a set of register
39 * values to write (the enable bits will be ignored). At runtime an
40 * enumerated control will be presented for each DRC block allowing
41 * the user to choose the configration to use.
42 *
43 * Configurations may be generated by hand or by using the DRC control
44 * panel provided by the WISCE - see http://www.wolfsonmicro.com/wisce/
45 * for details.
46 */
47struct wm8994_drc_cfg {
48 const char *name;
49 u16 regs[WM8994_DRC_REGS];
50};
51
52/**
53 * ReTune Mobile configurations are specified with a label, sample
54 * rate and set of values to write (the enable bits will be ignored).
55 *
56 * Configurations are expected to be generated using the ReTune Mobile
57 * control panel in WISCE - see http://www.wolfsonmicro.com/wisce/
58 */
59struct wm8994_retune_mobile_cfg {
60 const char *name;
61 unsigned int rate;
62 u16 regs[WM8994_EQ_REGS];
63};
64
65/**
66 * Multiband compressor configurations are specified with a label and
67 * two sets of values to write. Configurations are expected to be
68 * generated using the multiband compressor configuration panel in
69 * WISCE - see http://www.wolfsonmicro.com/wisce/
70 */
71struct wm8958_mbc_cfg {
72 const char *name;
73 u16 cutoff_regs[WM8958_MBC_CUTOFF_REGS];
74 u16 coeff_regs[WM8958_MBC_COEFF_REGS];
75
76 /* Coefficient layout when using MBC+VSS firmware */
77 u16 combined_regs[WM8958_MBC_COMBINED_REGS];
78};
79
80/**
81 * VSS HPF configurations are specified with a label and two values to
82 * write. Configurations are expected to be generated using the
83 * multiband compressor configuration panel in WISCE - see
84 * http://www.wolfsonmicro.com/wisce/
85 */
86struct wm8958_vss_hpf_cfg {
87 const char *name;
88 u16 regs[WM8958_VSS_HPF_REGS];
89};
90
91/**
92 * VSS configurations are specified with a label and array of values
93 * to write. Configurations are expected to be generated using the
94 * multiband compressor configuration panel in WISCE - see
95 * http://www.wolfsonmicro.com/wisce/
96 */
97struct wm8958_vss_cfg {
98 const char *name;
99 u16 regs[WM8958_VSS_REGS];
100};
101
102/**
103 * Enhanced EQ configurations are specified with a label and array of
104 * values to write. Configurations are expected to be generated using
105 * the multiband compressor configuration panel in WISCE - see
106 * http://www.wolfsonmicro.com/wisce/
107 */
108struct wm8958_enh_eq_cfg {
109 const char *name;
110 u16 regs[WM8958_ENH_EQ_REGS];
111};
112
113/**
114 * Microphone detection rates, used to tune response rates and power
115 * consumption for WM8958/WM1811 microphone detection.
116 *
117 * @sysclk: System clock rate to use this configuration for.
118 * @idle: True if this configuration should use when no accessory is detected,
119 * false otherwise.
120 * @start: Value for MICD_BIAS_START_TIME register field (not shifted).
121 * @rate: Value for MICD_RATE register field (not shifted).
122 */
123struct wm8958_micd_rate {
124 int sysclk;
125 bool idle;
126 int start;
127 int rate;
128};
129
130struct wm8994_pdata {
131 int gpio_base;
132
133 /**
134 * Default values for GPIOs if non-zero, WM8994_CONFIGURE_GPIO
135 * can be used for all zero values.
136 */
137 int gpio_defaults[WM8994_NUM_GPIO];
138
139 struct wm8994_ldo_pdata ldo[WM8994_NUM_LDO];
140
141 int irq_base; /** Base IRQ number for WM8994, required for IRQs */
142 unsigned long irq_flags; /** user irq flags */
143
144 int num_drc_cfgs;
145 struct wm8994_drc_cfg *drc_cfgs;
146
147 int num_retune_mobile_cfgs;
148 struct wm8994_retune_mobile_cfg *retune_mobile_cfgs;
149
150 int num_mbc_cfgs;
151 struct wm8958_mbc_cfg *mbc_cfgs;
152
153 int num_vss_cfgs;
154 struct wm8958_vss_cfg *vss_cfgs;
155
156 int num_vss_hpf_cfgs;
157 struct wm8958_vss_hpf_cfg *vss_hpf_cfgs;
158
159 int num_enh_eq_cfgs;
160 struct wm8958_enh_eq_cfg *enh_eq_cfgs;
161
162 int num_micd_rates;
163 struct wm8958_micd_rate *micd_rates;
164
165 /* Power up delays to add after microphone bias power up (ms) */
166 int micb1_delay;
167 int micb2_delay;
168
169 /* LINEOUT can be differential or single ended */
170 unsigned int lineout1_diff:1;
171 unsigned int lineout2_diff:1;
172
173 /* Common mode feedback */
174 unsigned int lineout1fb:1;
175 unsigned int lineout2fb:1;
176
177 /* Delay between detecting a jack and starting microphone
178 * detect (specified in ms)
179 */
180 int micdet_delay;
181
182 /* Delay between microphone detect completing and reporting on
183 * insert (specified in ms)
184 */
185 int mic_id_delay;
186
187 /* IRQ for microphone detection if brought out directly as a
188 * signal.
189 */
190 int micdet_irq;
191
192 /* WM8994 microphone biases: 0=0.9*AVDD1 1=0.65*AVVD1 */
193 unsigned int micbias1_lvl:1;
194 unsigned int micbias2_lvl:1;
195
196 /* WM8994 jack detect threashold levels, see datasheet for values */
197 unsigned int jd_scthr:2;
198 unsigned int jd_thr:2;
199
200 /* Configure WM1811 jack detection for use with external capacitor */
201 unsigned int jd_ext_cap:1;
202
203 /* WM8958 microphone bias configuration */
204 int micbias[2];
205
206 /* WM8958 microphone detection ranges */
207 u16 micd_lvl_sel;
208
209 /* Disable the internal pull downs on the LDOs if they are
210 * always driven (eg, connected to an always on supply or
211 * GPIO that always drives an output. If they float power
212 * consumption will rise.
213 */
214 bool ldo_ena_always_driven;
215
216 /*
217 * SPKMODE must be pulled internally by the device on this
218 * system.
219 */
220 bool spkmode_pu;
221
222 /*
223 * CS/ADDR must be pulled internally by the device on this
224 * system.
225 */
226 bool csnaddr_pd;
227
228 /**
229 * Maximum number of channels clocks will be generated for,
230 * useful for systems where and I2S bus with multiple data
231 * lines is mastered.
232 */
233 int max_channels_clocked[WM8994_NUM_AIF];
234
235 /**
236 * GPIO for the IRQ pin if host only supports edge triggering
237 */
238 int irq_gpio;
239};
240
241#endif