1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Rockchip PDM ALSA SoC Digital Audio Interface(DAI)  driver
4 *
5 * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd
6 */
7
8#ifndef _ROCKCHIP_PDM_H
9#define _ROCKCHIP_PDM_H
10
11/* PDM REGS */
12#define PDM_SYSCONFIG	(0x0000)
13#define PDM_CTRL0	(0x0004)
14#define PDM_CTRL1	(0x0008)
15#define PDM_CLK_CTRL	(0x000c)
16#define PDM_HPF_CTRL	(0x0010)
17#define PDM_FIFO_CTRL	(0x0014)
18#define PDM_DMA_CTRL	(0x0018)
19#define PDM_INT_EN	(0x001c)
20#define PDM_INT_CLR	(0x0020)
21#define PDM_INT_ST	(0x0024)
22#define PDM_RXFIFO_DATA	(0x0030)
23#define PDM_DATA_VALID	(0x0054)
24#define PDM_VERSION	(0x0058)
25
26/* PDM_SYSCONFIG */
27#define PDM_RX_MASK		(0x1 << 2)
28#define PDM_RX_START		(0x1 << 2)
29#define PDM_RX_STOP		(0x0 << 2)
30#define PDM_RX_CLR_MASK		(0x1 << 0)
31#define PDM_RX_CLR_WR		(0x1 << 0)
32#define PDM_RX_CLR_DONE		(0x0 << 0)
33
34/* PDM CTRL0 */
35#define PDM_PATH_MSK		(0xf << 27)
36#define PDM_MODE_MSK		BIT(31)
37#define PDM_MODE_RJ		0
38#define PDM_MODE_LJ		BIT(31)
39#define PDM_PATH3_EN		BIT(30)
40#define PDM_PATH2_EN		BIT(29)
41#define PDM_PATH1_EN		BIT(28)
42#define PDM_PATH0_EN		BIT(27)
43#define PDM_HWT_EN		BIT(26)
44#define PDM_VDW_MSK		(0x1f << 0)
45#define PDM_VDW(X)		((X - 1) << 0)
46
47/* PDM CTRL1 */
48#define PDM_FD_NUMERATOR_SFT	16
49#define PDM_FD_NUMERATOR_MSK	GENMASK(31, 16)
50#define PDM_FD_DENOMINATOR_SFT	0
51#define PDM_FD_DENOMINATOR_MSK	GENMASK(15, 0)
52
53/* PDM CLK CTRL */
54#define PDM_CLK_FD_RATIO_MSK	BIT(6)
55#define PDM_CLK_FD_RATIO_40	(0X0 << 6)
56#define PDM_CLK_FD_RATIO_35	BIT(6)
57#define PDM_CLK_MSK		BIT(5)
58#define PDM_CLK_EN		BIT(5)
59#define PDM_CLK_DIS		(0x0 << 5)
60#define PDM_CKP_MSK		BIT(3)
61#define PDM_CKP_NORMAL		(0x0 << 3)
62#define PDM_CKP_INVERTED	BIT(3)
63#define PDM_DS_RATIO_MSK	(0x7 << 0)
64#define PDM_CLK_320FS		(0x0 << 0)
65#define PDM_CLK_640FS		(0x1 << 0)
66#define PDM_CLK_1280FS		(0x2 << 0)
67#define PDM_CLK_2560FS		(0x3 << 0)
68#define PDM_CLK_5120FS		(0x4 << 0)
69
70/* PDM HPF CTRL */
71#define PDM_HPF_LE		BIT(3)
72#define PDM_HPF_RE		BIT(2)
73#define PDM_HPF_CF_MSK		(0x3 << 0)
74#define PDM_HPF_3P79HZ		(0x0 << 0)
75#define PDM_HPF_60HZ		(0x1 << 0)
76#define PDM_HPF_243HZ		(0x2 << 0)
77#define PDM_HPF_493HZ		(0x3 << 0)
78
79/* PDM DMA CTRL */
80#define PDM_DMA_RD_MSK		BIT(8)
81#define PDM_DMA_RD_EN		BIT(8)
82#define PDM_DMA_RD_DIS		(0x0 << 8)
83#define PDM_DMA_RDL_MSK		(0x7f << 0)
84#define PDM_DMA_RDL(X)		((X - 1) << 0)
85
86#endif /* _ROCKCHIP_PDM_H */
87