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/*
* Rockchip PDM ALSA SoC Digital Audio Interface(DAI) driver
*
* Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _ROCKCHIP_PDM_H
#define _ROCKCHIP_PDM_H
/* PDM REGS */
#define PDM_SYSCONFIG (0x0000)
#define PDM_CTRL0 (0x0004)
#define PDM_CTRL1 (0x0008)
#define PDM_CLK_CTRL (0x000c)
#define PDM_HPF_CTRL (0x0010)
#define PDM_FIFO_CTRL (0x0014)
#define PDM_DMA_CTRL (0x0018)
#define PDM_INT_EN (0x001c)
#define PDM_INT_CLR (0x0020)
#define PDM_INT_ST (0x0024)
#define PDM_RXFIFO_DATA (0x0030)
#define PDM_DATA_VALID (0x0054)
#define PDM_VERSION (0x0058)
/* PDM_SYSCONFIG */
#define PDM_RX_MASK (0x1 << 2)
#define PDM_RX_START (0x1 << 2)
#define PDM_RX_STOP (0x0 << 2)
#define PDM_RX_CLR_MASK (0x1 << 0)
#define PDM_RX_CLR_WR (0x1 << 0)
#define PDM_RX_CLR_DONE (0x0 << 0)
/* PDM CTRL0 */
#define PDM_PATH_MSK (0xf << 27)
#define PDM_MODE_MSK BIT(31)
#define PDM_MODE_RJ 0
#define PDM_MODE_LJ BIT(31)
#define PDM_PATH3_EN BIT(30)
#define PDM_PATH2_EN BIT(29)
#define PDM_PATH1_EN BIT(28)
#define PDM_PATH0_EN BIT(27)
#define PDM_HWT_EN BIT(26)
#define PDM_VDW_MSK (0x1f << 0)
#define PDM_VDW(X) ((X - 1) << 0)
/* PDM CTRL1 */
#define PDM_FD_NUMERATOR_SFT 16
#define PDM_FD_NUMERATOR_MSK GENMASK(31, 16)
#define PDM_FD_DENOMINATOR_SFT 0
#define PDM_FD_DENOMINATOR_MSK GENMASK(15, 0)
/* PDM CLK CTRL */
#define PDM_CLK_FD_RATIO_MSK BIT(6)
#define PDM_CLK_FD_RATIO_40 (0X0 << 6)
#define PDM_CLK_FD_RATIO_35 BIT(6)
#define PDM_CLK_MSK BIT(5)
#define PDM_CLK_EN BIT(5)
#define PDM_CLK_DIS (0x0 << 5)
#define PDM_CKP_MSK BIT(3)
#define PDM_CKP_NORMAL (0x0 << 3)
#define PDM_CKP_INVERTED BIT(3)
#define PDM_DS_RATIO_MSK (0x7 << 0)
#define PDM_CLK_320FS (0x0 << 0)
#define PDM_CLK_640FS (0x1 << 0)
#define PDM_CLK_1280FS (0x2 << 0)
#define PDM_CLK_2560FS (0x3 << 0)
#define PDM_CLK_5120FS (0x4 << 0)
/* PDM HPF CTRL */
#define PDM_HPF_LE BIT(3)
#define PDM_HPF_RE BIT(2)
#define PDM_HPF_CF_MSK (0x3 << 0)
#define PDM_HPF_3P79HZ (0x0 << 0)
#define PDM_HPF_60HZ (0x1 << 0)
#define PDM_HPF_243HZ (0x2 << 0)
#define PDM_HPF_493HZ (0x3 << 0)
/* PDM DMA CTRL */
#define PDM_DMA_RD_MSK BIT(8)
#define PDM_DMA_RD_EN BIT(8)
#define PDM_DMA_RD_DIS (0x0 << 8)
#define PDM_DMA_RDL_MSK (0x7f << 0)
#define PDM_DMA_RDL(X) ((X - 1) << 0)
#endif /* _ROCKCHIP_PDM_H */
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