tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Rockchip PDM ALSA SoC Digital Audio Interface(DAI) driver
3 *
4 * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd
5 *
6 * This software is licensed under the terms of the GNU General Public
7 * License version 2, as published by the Free Software Foundation, and
8 * may be copied, distributed, and modified under those terms.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16
17#ifndef _ROCKCHIP_PDM_H
18#define _ROCKCHIP_PDM_H
19
20/* PDM REGS */
21#define PDM_SYSCONFIG (0x0000)
22#define PDM_CTRL0 (0x0004)
23#define PDM_CTRL1 (0x0008)
24#define PDM_CLK_CTRL (0x000c)
25#define PDM_HPF_CTRL (0x0010)
26#define PDM_FIFO_CTRL (0x0014)
27#define PDM_DMA_CTRL (0x0018)
28#define PDM_INT_EN (0x001c)
29#define PDM_INT_CLR (0x0020)
30#define PDM_INT_ST (0x0024)
31#define PDM_RXFIFO_DATA (0x0030)
32#define PDM_DATA_VALID (0x0054)
33#define PDM_VERSION (0x0058)
34
35/* PDM_SYSCONFIG */
36#define PDM_RX_MASK (0x1 << 2)
37#define PDM_RX_START (0x1 << 2)
38#define PDM_RX_STOP (0x0 << 2)
39#define PDM_RX_CLR_MASK (0x1 << 0)
40#define PDM_RX_CLR_WR (0x1 << 0)
41#define PDM_RX_CLR_DONE (0x0 << 0)
42
43/* PDM CTRL0 */
44#define PDM_PATH_MSK (0xf << 27)
45#define PDM_PATH3_EN BIT(30)
46#define PDM_PATH2_EN BIT(29)
47#define PDM_PATH1_EN BIT(28)
48#define PDM_PATH0_EN BIT(27)
49#define PDM_HWT_EN BIT(26)
50#define PDM_VDW_MSK (0x1f << 0)
51#define PDM_VDW(X) ((X - 1) << 0)
52
53/* PDM CLK CTRL */
54#define PDM_CLK_MSK BIT(5)
55#define PDM_CLK_EN BIT(5)
56#define PDM_CLK_DIS (0x0 << 5)
57#define PDM_CKP_MSK BIT(3)
58#define PDM_CKP_NORMAL (0x0 << 3)
59#define PDM_CKP_INVERTED BIT(3)
60#define PDM_DS_RATIO_MSK (0x7 << 0)
61#define PDM_CLK_320FS (0x0 << 0)
62#define PDM_CLK_640FS (0x1 << 0)
63#define PDM_CLK_1280FS (0x2 << 0)
64#define PDM_CLK_2560FS (0x3 << 0)
65#define PDM_CLK_5120FS (0x4 << 0)
66
67/* PDM HPF CTRL */
68#define PDM_HPF_LE BIT(3)
69#define PDM_HPF_RE BIT(2)
70#define PDM_HPF_CF_MSK (0x3 << 0)
71#define PDM_HPF_3P79HZ (0x0 << 0)
72#define PDM_HPF_60HZ (0x1 << 0)
73#define PDM_HPF_243HZ (0x2 << 0)
74#define PDM_HPF_493HZ (0x3 << 0)
75
76/* PDM DMA CTRL */
77#define PDM_DMA_RD_MSK BIT(8)
78#define PDM_DMA_RD_EN BIT(8)
79#define PDM_DMA_RD_DIS (0x0 << 8)
80#define PDM_DMA_RDL_MSK (0x7f << 0)
81#define PDM_DMA_RDL(X) ((X - 1) << 0)
82
83#endif /* _ROCKCHIP_PDM_H */