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_SAMPLERATE_MSK	GENMASK(7, 5)
45#define PDM_SAMPLERATE(x)	((x) << 5)
46#define PDM_VDW_MSK		(0x1f << 0)
47#define PDM_VDW(X)		((X - 1) << 0)
48
49/* PDM CTRL1 */
50#define PDM_FD_NUMERATOR_SFT	16
51#define PDM_FD_NUMERATOR_MSK	GENMASK(31, 16)
52#define PDM_FD_DENOMINATOR_SFT	0
53#define PDM_FD_DENOMINATOR_MSK	GENMASK(15, 0)
54
55/* PDM CLK CTRL */
56#define PDM_PATH_SHIFT(x)	(8 + (x) * 2)
57#define PDM_PATH_MASK(x)	(0x3 << PDM_PATH_SHIFT(x))
58#define PDM_PATH(x, v)		((v) << PDM_PATH_SHIFT(x))
59#define PDM_CLK_FD_RATIO_MSK	BIT(6)
60#define PDM_CLK_FD_RATIO_40	(0X0 << 6)
61#define PDM_CLK_FD_RATIO_35	BIT(6)
62#define PDM_CLK_MSK		BIT(5)
63#define PDM_CLK_EN		BIT(5)
64#define PDM_CLK_DIS		(0x0 << 5)
65#define PDM_CKP_MSK		BIT(3)
66#define PDM_CKP_NORMAL		(0x0 << 3)
67#define PDM_CKP_INVERTED	BIT(3)
68#define PDM_DS_RATIO_MSK	(0x7 << 0)
69#define PDM_CLK_320FS		(0x0 << 0)
70#define PDM_CLK_640FS		(0x1 << 0)
71#define PDM_CLK_1280FS		(0x2 << 0)
72#define PDM_CLK_2560FS		(0x3 << 0)
73#define PDM_CLK_5120FS		(0x4 << 0)
74#define PDM_CIC_RATIO_MSK	(0x3 << 0)
75
76/* PDM HPF CTRL */
77#define PDM_HPF_LE		BIT(3)
78#define PDM_HPF_RE		BIT(2)
79#define PDM_HPF_CF_MSK		(0x3 << 0)
80#define PDM_HPF_3P79HZ		(0x0 << 0)
81#define PDM_HPF_60HZ		(0x1 << 0)
82#define PDM_HPF_243HZ		(0x2 << 0)
83#define PDM_HPF_493HZ		(0x3 << 0)
84
85/* PDM DMA CTRL */
86#define PDM_DMA_RD_MSK		BIT(8)
87#define PDM_DMA_RD_EN		BIT(8)
88#define PDM_DMA_RD_DIS		(0x0 << 8)
89#define PDM_DMA_RDL_MSK		(0x7f << 0)
90#define PDM_DMA_RDL(X)		((X - 1) << 0)
91
92#endif /* _ROCKCHIP_PDM_H */
93