Root/include/sound/wm2200.h

1/*
2 * linux/sound/wm2200.h -- Platform data for WM2200
3 *
4 * Copyright 2012 Wolfson Microelectronics. PLC.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#ifndef __LINUX_SND_WM2200_H
12#define __LINUX_SND_WM2200_H
13
14#define WM2200_GPIO_SET 0x10000
15#define WM2200_MAX_MICBIAS 2
16
17enum wm2200_in_mode {
18    WM2200_IN_SE = 0,
19    WM2200_IN_DIFF = 1,
20    WM2200_IN_DMIC = 2,
21};
22
23enum wm2200_dmic_sup {
24    WM2200_DMIC_SUP_MICVDD = 0,
25    WM2200_DMIC_SUP_MICBIAS1 = 1,
26    WM2200_DMIC_SUP_MICBIAS2 = 2,
27};
28
29enum wm2200_mbias_lvl {
30    WM2200_MBIAS_LVL_1V5 = 1,
31    WM2200_MBIAS_LVL_1V8 = 2,
32    WM2200_MBIAS_LVL_1V9 = 3,
33    WM2200_MBIAS_LVL_2V0 = 4,
34    WM2200_MBIAS_LVL_2V2 = 5,
35    WM2200_MBIAS_LVL_2V4 = 6,
36    WM2200_MBIAS_LVL_2V5 = 7,
37    WM2200_MBIAS_LVL_2V6 = 8,
38};
39
40struct wm2200_micbias {
41    enum wm2200_mbias_lvl mb_lvl; /** Regulated voltage */
42    unsigned int discharge:1; /** Actively discharge */
43    unsigned int fast_start:1; /** Enable aggressive startup ramp rate */
44    unsigned int bypass:1; /** Use bypass mode */
45};
46
47struct wm2200_pdata {
48    int reset; /** GPIO controlling /RESET, if any */
49    int ldo_ena; /** GPIO controlling LODENA, if any */
50    int irq_flags;
51
52    int gpio_defaults[4];
53
54    enum wm2200_in_mode in_mode[3];
55    enum wm2200_dmic_sup dmic_sup[3];
56
57    /** MICBIAS configurations */
58    struct wm2200_micbias micbias[WM2200_MAX_MICBIAS];
59};
60
61#endif
62

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