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 |
71 | |