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