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 */
  18 enum 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
  41 enum wm8994_vmid_mode {
  42         WM8994_VMID_NORMAL,
  43         WM8994_VMID_FORCE,
  44 };
  45
  46 /* wm 8994 family devices */
  47 enum 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  */
  66 int 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__ */