linux/include/sound/sof/dai-intel.h
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   1/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
   2/*
   3 * This file is provided under a dual BSD/GPLv2 license.  When using or
   4 * redistributing this file, you may do so under either license.
   5 *
   6 * Copyright(c) 2018 Intel Corporation. All rights reserved.
   7 */
   8
   9#ifndef __INCLUDE_SOUND_SOF_DAI_INTEL_H__
  10#define __INCLUDE_SOUND_SOF_DAI_INTEL_H__
  11
  12#include <sound/sof/header.h>
  13
  14 /* ssc1: TINTE */
  15#define SOF_DAI_INTEL_SSP_QUIRK_TINTE           (1 << 0)
  16 /* ssc1: PINTE */
  17#define SOF_DAI_INTEL_SSP_QUIRK_PINTE           (1 << 1)
  18 /* ssc2: SMTATF */
  19#define SOF_DAI_INTEL_SSP_QUIRK_SMTATF          (1 << 2)
  20 /* ssc2: MMRATF */
  21#define SOF_DAI_INTEL_SSP_QUIRK_MMRATF          (1 << 3)
  22 /* ssc2: PSPSTWFDFD */
  23#define SOF_DAI_INTEL_SSP_QUIRK_PSPSTWFDFD      (1 << 4)
  24 /* ssc2: PSPSRWFDFD */
  25#define SOF_DAI_INTEL_SSP_QUIRK_PSPSRWFDFD      (1 << 5)
  26/* ssc1: LBM */
  27#define SOF_DAI_INTEL_SSP_QUIRK_LBM             (1 << 6)
  28
  29 /* here is the possibility to define others aux macros */
  30
  31#define SOF_DAI_INTEL_SSP_FRAME_PULSE_WIDTH_MAX         38
  32#define SOF_DAI_INTEL_SSP_SLOT_PADDING_MAX              31
  33
  34/* SSP clocks control settings
  35 *
  36 * Macros for clks_control field in sof_ipc_dai_ssp_params struct.
  37 */
  38
  39/* mclk 0 disable */
  40#define SOF_DAI_INTEL_SSP_MCLK_0_DISABLE                BIT(0)
  41/* mclk 1 disable */
  42#define SOF_DAI_INTEL_SSP_MCLK_1_DISABLE                BIT(1)
  43/* mclk keep active */
  44#define SOF_DAI_INTEL_SSP_CLKCTRL_MCLK_KA               BIT(2)
  45/* bclk keep active */
  46#define SOF_DAI_INTEL_SSP_CLKCTRL_BCLK_KA               BIT(3)
  47/* fs keep active */
  48#define SOF_DAI_INTEL_SSP_CLKCTRL_FS_KA                 BIT(4)
  49/* bclk idle */
  50#define SOF_DAI_INTEL_SSP_CLKCTRL_BCLK_IDLE_HIGH        BIT(5)
  51
  52/* SSP Configuration Request - SOF_IPC_DAI_SSP_CONFIG */
  53struct sof_ipc_dai_ssp_params {
  54        struct sof_ipc_hdr hdr;
  55        uint16_t reserved1;
  56        uint16_t mclk_id;
  57
  58        uint32_t mclk_rate;     /* mclk frequency in Hz */
  59        uint32_t fsync_rate;    /* fsync frequency in Hz */
  60        uint32_t bclk_rate;     /* bclk frequency in Hz */
  61
  62        /* TDM */
  63        uint32_t tdm_slots;
  64        uint32_t rx_slots;
  65        uint32_t tx_slots;
  66
  67        /* data */
  68        uint32_t sample_valid_bits;
  69        uint16_t tdm_slot_width;
  70        uint16_t reserved2;     /* alignment */
  71
  72        /* MCLK */
  73        uint32_t mclk_direction;
  74
  75        uint16_t frame_pulse_width;
  76        uint16_t tdm_per_slot_padding_flag;
  77        uint32_t clks_control;
  78        uint32_t quirks;
  79} __packed;
  80
  81/* HDA Configuration Request - SOF_IPC_DAI_HDA_CONFIG */
  82struct sof_ipc_dai_hda_params {
  83        struct sof_ipc_hdr hdr;
  84        uint32_t link_dma_ch;
  85} __packed;
  86
  87/* DMIC Configuration Request - SOF_IPC_DAI_DMIC_CONFIG */
  88
  89/* This struct is defined per 2ch PDM controller available in the platform.
  90 * Normally it is sufficient to set the used microphone specific enables to 1
  91 * and keep other parameters as zero. The customizations are:
  92 *
  93 * 1. If a device mixes different microphones types with different polarity
  94 * and/or the absolute polarity matters the PCM signal from a microphone
  95 * can be inverted with the controls.
  96 *
  97 * 2. If the microphones in a stereo pair do not appear in captured stream
  98 * in desired order due to board schematics choises they can be swapped with
  99 * the clk_edge parameter.
 100 *
 101 * 3. If PDM bit errors are seen in capture (poor quality) the skew parameter
 102 * that delays the sampling time of data by half cycles of DMIC source clock
 103 * can be tried for improvement. However there is no guarantee for this to fix
 104 * data integrity problems.
 105 */
 106struct sof_ipc_dai_dmic_pdm_ctrl {
 107        struct sof_ipc_hdr hdr;
 108        uint16_t id;            /**< PDM controller ID */
 109
 110        uint16_t enable_mic_a;  /**< Use A (left) channel mic (0 or 1)*/
 111        uint16_t enable_mic_b;  /**< Use B (right) channel mic (0 or 1)*/
 112
 113        uint16_t polarity_mic_a; /**< Optionally invert mic A signal (0 or 1) */
 114        uint16_t polarity_mic_b; /**< Optionally invert mic B signal (0 or 1) */
 115
 116        uint16_t clk_edge;      /**< Optionally swap data clock edge (0 or 1) */
 117        uint16_t skew;          /**< Adjust PDM data sampling vs. clock (0..15) */
 118
 119        uint16_t reserved[3];   /**< Make sure the total size is 4 bytes aligned */
 120} __packed;
 121
 122/* This struct contains the global settings for all 2ch PDM controllers. The
 123 * version number used in configuration data is checked vs. version used by
 124 * device driver src/drivers/dmic.c need to match. It is incremented from
 125 * initial value 1 if updates done for the to driver would alter the operation
 126 * of the microhone.
 127 *
 128 * Note: The microphone clock (pdmclk_min, pdmclk_max, duty_min, duty_max)
 129 * parameters need to be set as defined in microphone data sheet. E.g. clock
 130 * range 1.0 - 3.2 MHz is usually supported microphones. Some microphones are
 131 * multi-mode capable and there may be denied mic clock frequencies between
 132 * the modes. In such case set the clock range limits of the desired mode to
 133 * avoid the driver to set clock to an illegal rate.
 134 *
 135 * The duty cycle could be set to 48-52% if not known. Generally these
 136 * parameters can be altered within data sheet specified limits to match
 137 * required audio application performance power.
 138 *
 139 * The microphone clock needs to be usually about 50-80 times the used audio
 140 * sample rate. With highest sample rates above 48 kHz this can relaxed
 141 * somewhat.
 142 *
 143 * The parameter wake_up_time describes how long time the microphone needs
 144 * for the data line to produce valid output from mic clock start. The driver
 145 * will mute the captured audio for the given time. The min_clock_on_time
 146 * parameter is used to prevent too short clock bursts to happen. The driver
 147 * will keep the clock active after capture stop if this time is not yet
 148 * met. The unit for both is microseconds (us). Exceed of 100 ms will be
 149 * treated as an error.
 150 */
 151struct sof_ipc_dai_dmic_params {
 152        struct sof_ipc_hdr hdr;
 153        uint32_t driver_ipc_version;    /**< Version (1..N) */
 154
 155        uint32_t pdmclk_min;    /**< Minimum microphone clock in Hz (100000..N) */
 156        uint32_t pdmclk_max;    /**< Maximum microphone clock in Hz (min...N) */
 157
 158        uint32_t fifo_fs;       /**< FIFO sample rate in Hz (8000..96000) */
 159        uint32_t reserved_1;    /**< Reserved */
 160        uint16_t fifo_bits;     /**< FIFO word length (16 or 32) */
 161        uint16_t reserved_2;    /**< Reserved */
 162
 163        uint16_t duty_min;      /**< Min. mic clock duty cycle in % (20..80) */
 164        uint16_t duty_max;      /**< Max. mic clock duty cycle in % (min..80) */
 165
 166        uint32_t num_pdm_active; /**< Number of active pdm controllers */
 167
 168        uint32_t wake_up_time;      /**< Time from clock start to data (us) */
 169        uint32_t min_clock_on_time; /**< Min. time that clk is kept on (us) */
 170        uint32_t unmute_ramp_time;  /**< Length of logarithmic gain ramp (ms) */
 171
 172        /* reserved for future use */
 173        uint32_t reserved[5];
 174
 175        /**< variable number of pdm controller config */
 176        struct sof_ipc_dai_dmic_pdm_ctrl pdm[0];
 177} __packed;
 178
 179#endif
 180