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Mark Brownd5315a22012-01-25 19:29:41 +00001/*
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
Chris Rattray1a786242013-02-05 14:40:44 +000015#define WM2200_MAX_MICBIAS 2
Mark Brownd5315a22012-01-25 19:29:41 +000016
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
Chris Rattray1a786242013-02-05 14:40:44 +000029enum 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
Mark Brownd5315a22012-01-25 19:29:41 +000047struct 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
Chris Rattray1a786242013-02-05 14:40:44 +000057 /** MICBIAS configurations */
58 struct wm2200_micbias micbias[WM2200_MAX_MICBIAS];
Mark Brownd5315a22012-01-25 19:29:41 +000059};
60
61#endif