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-rw-r--r--sound/soc/rockchip/rockchip_pdm.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/sound/soc/rockchip/rockchip_pdm.h b/sound/soc/rockchip/rockchip_pdm.h
new file mode 100644
index 000000000..cab977272
--- /dev/null
+++ b/sound/soc/rockchip/rockchip_pdm.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Rockchip PDM ALSA SoC Digital Audio Interface(DAI) driver
+ *
+ * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd
+ */
+
+#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_SAMPLERATE_MSK GENMASK(7, 5)
+#define PDM_SAMPLERATE(x) ((x) << 5)
+#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_PATH_SHIFT(x) (8 + (x) * 2)
+#define PDM_PATH_MASK(x) (0x3 << PDM_PATH_SHIFT(x))
+#define PDM_PATH(x, v) ((v) << PDM_PATH_SHIFT(x))
+#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)
+#define PDM_CIC_RATIO_MSK (0x3 << 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 */