LXR uboot/drivers/sound/wm8994.h

   1/*
   2 * Copyright (C) 2012 Samsung Electronics
   3 * R. Chadrasekar <rcsekar@samsung.com>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#ifndef __WM8994_H__
   9#define __WM8994_H__
  10
  11/* Sources for AIF1/2 SYSCLK - use with set_dai_sysclk() */
  12#define WM8994_SYSCLK_MCLK1     1
  13#define WM8994_SYSCLK_MCLK2     2
  14#define WM8994_SYSCLK_FLL1      3
  15#define WM8994_SYSCLK_FLL2      4
  16
  17/*  Avilable audi interface ports in wm8994 codec */
  18enum en_audio_interface {
  19         WM8994_AIF1 = 1,
  20         WM8994_AIF2,
  21         WM8994_AIF3
  22};
  23
  24/* OPCLK is also configured with set_dai_sysclk, specify division*10 as rate. */
  25#define WM8994_SYSCLK_OPCLK     5
  26
  27#define WM8994_FLL1     1
  28#define WM8994_FLL2     2
  29
  30#define WM8994_FLL_SRC_MCLK1    1
  31#define WM8994_FLL_SRC_MCLK2    2
  32#define WM8994_FLL_SRC_LRCLK    3
  33#define WM8994_FLL_SRC_BCLK     4
  34
  35/* maximum available digital interfac in the dac to configure */
  36#define WM8994_MAX_AIF                  2
  37
  38#define WM8994_MAX_INPUT_CLK_FREQ       13500000
  39#define WM8994_ID                       0x8994
  40
  41enum wm8994_vmid_mode {
  42        WM8994_VMID_NORMAL,
  43        WM8994_VMID_FORCE,
  44};
  45
  46/* wm 8994 family devices */
  47enum wm8994_type {
  48        WM8994 = 0,
  49        WM8958 = 1,
  50        WM1811 = 2,
  51};
  52
  53/*
  54 * intialise wm8994 sound codec device for the given configuration
  55 *
  56 * @param blob                  FDT node for codec values
  57 * @param aif_id                enum value of codec interface port in which
  58 *                              soc i2s is connected
  59 * @param sampling_rate         Sampling rate ranges between from 8khz to 96khz
  60 * @param mclk_freq             Master clock frequency.
  61 * @param bits_per_sample       bits per Sample can be 16 or 24
  62 * @param channels              Number of channnels, maximum 2
  63 *
  64 * @returns -1 for error  and 0  Success.
  65 */
  66int wm8994_init(const void *blob, enum en_audio_interface aif_id,
  67                        int sampling_rate, int mclk_freq,
  68                        int bits_per_sample, unsigned int channels);
  69#endif /*__WM8994_H__ */
  70