| /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ |
| /* |
| * PDM Microphone Interface for the NXP i.MX SoC |
| * Copyright 2018 NXP |
| */ |
| |
| #ifndef _FSL_MICFIL_H |
| #define _FSL_MICFIL_H |
| |
| /* MICFIL Register Map */ |
| #define REG_MICFIL_CTRL1 0x00 |
| #define REG_MICFIL_CTRL2 0x04 |
| #define REG_MICFIL_STAT 0x08 |
| #define REG_MICFIL_FIFO_CTRL 0x10 |
| #define REG_MICFIL_FIFO_STAT 0x14 |
| #define REG_MICFIL_DATACH0 0x24 |
| #define REG_MICFIL_DATACH1 0x28 |
| #define REG_MICFIL_DATACH2 0x2C |
| #define REG_MICFIL_DATACH3 0x30 |
| #define REG_MICFIL_DATACH4 0x34 |
| #define REG_MICFIL_DATACH5 0x38 |
| #define REG_MICFIL_DATACH6 0x3C |
| #define REG_MICFIL_DATACH7 0x40 |
| #define REG_MICFIL_DC_CTRL 0x64 |
| #define REG_MICFIL_OUT_CTRL 0x74 |
| #define REG_MICFIL_OUT_STAT 0x7C |
| #define REG_MICFIL_FSYNC_CTRL 0x80 |
| #define REG_MICFIL_VERID 0x84 |
| #define REG_MICFIL_PARAM 0x88 |
| #define REG_MICFIL_VAD0_CTRL1 0x90 |
| #define REG_MICFIL_VAD0_CTRL2 0x94 |
| #define REG_MICFIL_VAD0_STAT 0x98 |
| #define REG_MICFIL_VAD0_SCONFIG 0x9C |
| #define REG_MICFIL_VAD0_NCONFIG 0xA0 |
| #define REG_MICFIL_VAD0_NDATA 0xA4 |
| #define REG_MICFIL_VAD0_ZCD 0xA8 |
| |
| /* MICFIL Control Register 1 -- REG_MICFILL_CTRL1 0x00 */ |
| #define MICFIL_CTRL1_MDIS BIT(31) |
| #define MICFIL_CTRL1_DOZEN BIT(30) |
| #define MICFIL_CTRL1_PDMIEN BIT(29) |
| #define MICFIL_CTRL1_DBG BIT(28) |
| #define MICFIL_CTRL1_SRES BIT(27) |
| #define MICFIL_CTRL1_DBGE BIT(26) |
| #define MICFIL_CTRL1_DECFILS BIT(20) |
| #define MICFIL_CTRL1_FSYNCEN BIT(16) |
| |
| #define MICFIL_CTRL1_DISEL_DISABLE 0 |
| #define MICFIL_CTRL1_DISEL_DMA 1 |
| #define MICFIL_CTRL1_DISEL_IRQ 2 |
| #define MICFIL_CTRL1_DISEL GENMASK(25, 24) |
| #define MICFIL_CTRL1_ERREN BIT(23) |
| #define MICFIL_CTRL1_CHEN(ch) BIT(ch) |
| |
| /* MICFIL Control Register 2 -- REG_MICFILL_CTRL2 0x04 */ |
| #define MICFIL_CTRL2_QSEL_SHIFT 25 |
| #define MICFIL_CTRL2_QSEL GENMASK(27, 25) |
| #define MICFIL_QSEL_MEDIUM_QUALITY 0 |
| #define MICFIL_QSEL_HIGH_QUALITY 1 |
| #define MICFIL_QSEL_LOW_QUALITY 7 |
| #define MICFIL_QSEL_VLOW0_QUALITY 6 |
| #define MICFIL_QSEL_VLOW1_QUALITY 5 |
| #define MICFIL_QSEL_VLOW2_QUALITY 4 |
| |
| #define MICFIL_CTRL2_CICOSR GENMASK(19, 16) |
| #define MICFIL_CTRL2_CLKDIV GENMASK(7, 0) |
| |
| /* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */ |
| #define MICFIL_STAT_BSY_FIL BIT(31) |
| #define MICFIL_STAT_FIR_RDY BIT(30) |
| #define MICFIL_STAT_LOWFREQF BIT(29) |
| #define MICFIL_STAT_CHXF(ch) BIT(ch) |
| |
| /* MICFIL FIFO Control Register -- REG_MICFIL_FIFO_CTRL 0x10 */ |
| #define MICFIL_FIFO_CTRL_FIFOWMK GENMASK(4, 0) |
| |
| /* MICFIL FIFO Status Register -- REG_MICFIL_FIFO_STAT 0x14 */ |
| #define MICFIL_FIFO_STAT_FIFOX_OVER(ch) BIT(ch) |
| #define MICFIL_FIFO_STAT_FIFOX_UNDER(ch) BIT((ch) + 8) |
| |
| /* MICFIL DC Remover Control Register -- REG_MICFIL_DC_CTRL */ |
| #define MICFIL_DC_CTRL_CONFIG GENMASK(15, 0) |
| #define MICFIL_DC_CHX_SHIFT(ch) ((ch) << 1) |
| #define MICFIL_DC_CHX(ch) GENMASK((((ch) << 1) + 1), ((ch) << 1)) |
| #define MICFIL_DC_CUTOFF_21HZ 0 |
| #define MICFIL_DC_CUTOFF_83HZ 1 |
| #define MICFIL_DC_CUTOFF_152Hz 2 |
| #define MICFIL_DC_BYPASS 3 |
| |
| /* MICFIL VERID Register -- REG_MICFIL_VERID */ |
| #define MICFIL_VERID_MAJOR_SHIFT 24 |
| #define MICFIL_VERID_MAJOR_MASK GENMASK(31, 24) |
| #define MICFIL_VERID_MINOR_SHIFT 16 |
| #define MICFIL_VERID_MINOR_MASK GENMASK(23, 16) |
| #define MICFIL_VERID_FEATURE_SHIFT 0 |
| #define MICFIL_VERID_FEATURE_MASK GENMASK(15, 0) |
| |
| /* MICFIL PARAM Register -- REG_MICFIL_PARAM */ |
| #define MICFIL_PARAM_NUM_HWVAD_SHIFT 24 |
| #define MICFIL_PARAM_NUM_HWVAD_MASK GENMASK(27, 24) |
| #define MICFIL_PARAM_HWVAD_ZCD BIT(19) |
| #define MICFIL_PARAM_HWVAD_ENERGY_MODE BIT(17) |
| #define MICFIL_PARAM_HWVAD BIT(16) |
| #define MICFIL_PARAM_DC_OUT_BYPASS BIT(11) |
| #define MICFIL_PARAM_DC_IN_BYPASS BIT(10) |
| #define MICFIL_PARAM_LOW_POWER BIT(9) |
| #define MICFIL_PARAM_FIL_OUT_WIDTH BIT(8) |
| #define MICFIL_PARAM_FIFO_PTRWID_SHIFT 4 |
| #define MICFIL_PARAM_FIFO_PTRWID_MASK GENMASK(7, 4) |
| #define MICFIL_PARAM_NPAIR_SHIFT 0 |
| #define MICFIL_PARAM_NPAIR_MASK GENMASK(3, 0) |
| |
| /* MICFIL HWVAD0 Control 1 Register -- REG_MICFIL_VAD0_CTRL1*/ |
| #define MICFIL_VAD0_CTRL1_CHSEL GENMASK(26, 24) |
| #define MICFIL_VAD0_CTRL1_CICOSR GENMASK(19, 16) |
| #define MICFIL_VAD0_CTRL1_INITT GENMASK(12, 8) |
| #define MICFIL_VAD0_CTRL1_ST10 BIT(4) |
| #define MICFIL_VAD0_CTRL1_ERIE BIT(3) |
| #define MICFIL_VAD0_CTRL1_IE BIT(2) |
| #define MICFIL_VAD0_CTRL1_RST BIT(1) |
| #define MICFIL_VAD0_CTRL1_EN BIT(0) |
| |
| /* MICFIL HWVAD0 Control 2 Register -- REG_MICFIL_VAD0_CTRL2*/ |
| #define MICFIL_VAD0_CTRL2_FRENDIS BIT(31) |
| #define MICFIL_VAD0_CTRL2_PREFEN BIT(30) |
| #define MICFIL_VAD0_CTRL2_FOUTDIS BIT(28) |
| #define MICFIL_VAD0_CTRL2_FRAMET GENMASK(21, 16) |
| #define MICFIL_VAD0_CTRL2_INPGAIN GENMASK(11, 8) |
| #define MICFIL_VAD0_CTRL2_HPF GENMASK(1, 0) |
| |
| /* MICFIL HWVAD0 Signal CONFIG Register -- REG_MICFIL_VAD0_SCONFIG */ |
| #define MICFIL_VAD0_SCONFIG_SFILEN BIT(31) |
| #define MICFIL_VAD0_SCONFIG_SMAXEN BIT(30) |
| #define MICFIL_VAD0_SCONFIG_SGAIN GENMASK(3, 0) |
| |
| /* MICFIL HWVAD0 Noise CONFIG Register -- REG_MICFIL_VAD0_NCONFIG */ |
| #define MICFIL_VAD0_NCONFIG_NFILAUT BIT(31) |
| #define MICFIL_VAD0_NCONFIG_NMINEN BIT(30) |
| #define MICFIL_VAD0_NCONFIG_NDECEN BIT(29) |
| #define MICFIL_VAD0_NCONFIG_NOREN BIT(28) |
| #define MICFIL_VAD0_NCONFIG_NFILADJ GENMASK(12, 8) |
| #define MICFIL_VAD0_NCONFIG_NGAIN GENMASK(3, 0) |
| |
| /* MICFIL HWVAD0 Zero-Crossing Detector - REG_MICFIL_VAD0_ZCD */ |
| #define MICFIL_VAD0_ZCD_ZCDTH GENMASK(25, 16) |
| #define MICFIL_VAD0_ZCD_ZCDADJ GENMASK(11, 8) |
| #define MICFIL_VAD0_ZCD_ZCDAND BIT(4) |
| #define MICFIL_VAD0_ZCD_ZCDAUT BIT(2) |
| #define MICFIL_VAD0_ZCD_ZCDEN BIT(0) |
| |
| /* MICFIL HWVAD0 Status Register - REG_MICFIL_VAD0_STAT */ |
| #define MICFIL_VAD0_STAT_INITF BIT(31) |
| #define MICFIL_VAD0_STAT_INSATF BIT(16) |
| #define MICFIL_VAD0_STAT_EF BIT(15) |
| #define MICFIL_VAD0_STAT_IF BIT(0) |
| |
| /* MICFIL Output Control Register */ |
| #define MICFIL_OUTGAIN_CHX_SHIFT(v) (4 * (v)) |
| |
| /* Constants */ |
| #define MICFIL_OUTPUT_CHANNELS 8 |
| #define MICFIL_FIFO_NUM 8 |
| |
| #define FIFO_PTRWID 3 |
| #define FIFO_LEN BIT(FIFO_PTRWID) |
| |
| #define MICFIL_IRQ_LINES 4 |
| #define MICFIL_MAX_RETRY 25 |
| #define MICFIL_SLEEP_MIN 90000 /* in us */ |
| #define MICFIL_SLEEP_MAX 100000 /* in us */ |
| #define MICFIL_DMA_MAXBURST_RX 6 |
| |
| /* HWVAD Constants */ |
| #define MICFIL_HWVAD_ENVELOPE_MODE 0 |
| #define MICFIL_HWVAD_ENERGY_MODE 1 |
| |
| /** |
| * struct fsl_micfil_verid - version id data |
| * @version: version number |
| * @feature: feature specification number |
| */ |
| struct fsl_micfil_verid { |
| u32 version; |
| u32 feature; |
| }; |
| |
| /** |
| * struct fsl_micfil_param - parameter data |
| * @hwvad_num: the number of HWVADs |
| * @hwvad_zcd: HWVAD zero-cross detector is active |
| * @hwvad_energy_mode: HWVAD energy mode is active |
| * @hwvad: HWVAD is active |
| * @dc_out_bypass: points out if the output DC remover is disabled |
| * @dc_in_bypass: points out if the input DC remover is disabled |
| * @low_power: low power decimation filter |
| * @fil_out_width: filter output width |
| * @fifo_ptrwid: FIFO pointer width |
| * @npair: number of microphone pairs |
| */ |
| struct fsl_micfil_param { |
| u32 hwvad_num; |
| bool hwvad_zcd; |
| bool hwvad_energy_mode; |
| bool hwvad; |
| bool dc_out_bypass; |
| bool dc_in_bypass; |
| bool low_power; |
| bool fil_out_width; |
| u32 fifo_ptrwid; |
| u32 npair; |
| }; |
| |
| #endif /* _FSL_MICFIL_H */ |
