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