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 
17 enum wm2200_in_mode {
18 	WM2200_IN_SE = 0,
19 	WM2200_IN_DIFF = 1,
20 	WM2200_IN_DMIC = 2,
21 };
22 
23 enum wm2200_dmic_sup {
24 	WM2200_DMIC_SUP_MICVDD = 0,
25 	WM2200_DMIC_SUP_MICBIAS1 = 1,
26 	WM2200_DMIC_SUP_MICBIAS2 = 2,
27 };
28 
29 enum 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 
40 struct 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 
47 struct 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