sound/soc/tegra/tegra186_dspk.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * tegra186_dspk.h - Definitions for Tegra186 DSPK driver
   4  *
   5  * Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved.
   6  *
   7  */
   8
   9 #ifndef __TEGRA186_DSPK_H__
  10 #define __TEGRA186_DSPK_H__
  11
  12 /* Register offsets from DSPK BASE */
  13 #define TEGRA186_DSPK_RX_STATUS                 0x0c
  14 #define TEGRA186_DSPK_RX_INT_STATUS             0x10
  15 #define TEGRA186_DSPK_RX_INT_MASK               0x14
  16 #define TEGRA186_DSPK_RX_INT_SET                0x18
  17 #define TEGRA186_DSPK_RX_INT_CLEAR              0x1c
  18 #define TEGRA186_DSPK_RX_CIF_CTRL               0x20
  19 #define TEGRA186_DSPK_ENABLE                    0x40
  20 #define TEGRA186_DSPK_SOFT_RESET                0x44
  21 #define TEGRA186_DSPK_CG                        0x48
  22 #define TEGRA186_DSPK_STATUS                    0x4c
  23 #define TEGRA186_DSPK_INT_STATUS                0x50
  24 #define TEGRA186_DSPK_CORE_CTRL                 0x60
  25 #define TEGRA186_DSPK_CODEC_CTRL                0x64
  26
  27 /* DSPK CORE CONTROL fields */
  28 #define CH_SEL_SHIFT                            8
  29 #define TEGRA186_DSPK_CHANNEL_SELECT_MASK       (0x3 << CH_SEL_SHIFT)
  30 #define DSPK_OSR_SHIFT                          4
  31 #define TEGRA186_DSPK_OSR_MASK                  (0x3 << DSPK_OSR_SHIFT)
  32 #define LRSEL_POL_SHIFT                         0
  33 #define TEGRA186_DSPK_CTRL_LRSEL_POLARITY_MASK  (0x1 << LRSEL_POL_SHIFT)
  34 #define TEGRA186_DSPK_RX_FIFO_DEPTH             64
  35
  36 #define DSPK_OSR_FACTOR                         32
  37
  38 /* DSPK interface clock ratio */
  39 #define DSPK_CLK_RATIO                          4
  40
  41 enum tegra_dspk_osr {
  42         DSPK_OSR_32,
  43         DSPK_OSR_64,
  44         DSPK_OSR_128,
  45         DSPK_OSR_256,
  46 };
  47
  48 enum tegra_dspk_ch_sel {
  49         DSPK_CH_SELECT_LEFT,
  50         DSPK_CH_SELECT_RIGHT,
  51         DSPK_CH_SELECT_STEREO,
  52 };
  53
  54 enum tegra_dspk_lrsel {
  55         DSPK_LRSEL_LEFT,
  56         DSPK_LRSEL_RIGHT,
  57 };
  58
  59 struct tegra186_dspk {
  60         unsigned int rx_fifo_th;
  61         unsigned int osr_val;
  62         unsigned int lrsel;
  63         unsigned int ch_sel;
  64         unsigned int mono_to_stereo;
  65         unsigned int stereo_to_mono;
  66         struct clk *clk_dspk;
  67         struct regmap *regmap;
  68 };
  69
  70 #endif