linux/include/sound/sof/dai-intel.h
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   1/* SPDX-License-Identifier: (GPL-2.0-only 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/* DMIC max. four controllers for eight microphone channels */
  53#define SOF_DAI_INTEL_DMIC_NUM_CTRL                     4
  54
  55/* SSP Configuration Request - SOF_IPC_DAI_SSP_CONFIG */
  56struct sof_ipc_dai_ssp_params {
  57        struct sof_ipc_hdr hdr;
  58        uint16_t reserved1;
  59        uint16_t mclk_id;
  60
  61        uint32_t mclk_rate;     /* mclk frequency in Hz */
  62        uint32_t fsync_rate;    /* fsync frequency in Hz */
  63        uint32_t bclk_rate;     /* bclk frequency in Hz */
  64
  65        /* TDM */
  66        uint32_t tdm_slots;
  67        uint32_t rx_slots;
  68        uint32_t tx_slots;
  69
  70        /* data */
  71        uint32_t sample_valid_bits;
  72        uint16_t tdm_slot_width;
  73        uint16_t reserved2;     /* alignment */
  74
  75        /* MCLK */
  76        uint32_t mclk_direction;
  77
  78        uint16_t frame_pulse_width;
  79        uint16_t tdm_per_slot_padding_flag;
  80        uint32_t clks_control;
  81        uint32_t quirks;
  82        uint32_t bclk_delay;    /* guaranteed time (ms) for which BCLK
  83                                 * will be driven, before sending data
  84                                 */
  85} __packed;
  86
  87/* HDA Configuration Request - SOF_IPC_DAI_HDA_CONFIG */
  88struct sof_ipc_dai_hda_params {
  89        struct sof_ipc_hdr hdr;
  90        uint32_t link_dma_ch;
  91        uint32_t rate;
  92        uint32_t channels;
  93} __packed;
  94
  95/* ALH Configuration Request - SOF_IPC_DAI_ALH_CONFIG */
  96struct sof_ipc_dai_alh_params {
  97        struct sof_ipc_hdr hdr;
  98        uint32_t stream_id;
  99        uint32_t rate;
 100        uint32_t channels;
 101
 102        /* reserved for future use */
 103        uint32_t reserved[13];
 104} __packed;
 105
 106/* DMIC Configuration Request - SOF_IPC_DAI_DMIC_CONFIG */
 107
 108/* This struct is defined per 2ch PDM controller available in the platform.
 109 * Normally it is sufficient to set the used microphone specific enables to 1
 110 * and keep other parameters as zero. The customizations are:
 111 *
 112 * 1. If a device mixes different microphones types with different polarity
 113 * and/or the absolute polarity matters the PCM signal from a microphone
 114 * can be inverted with the controls.
 115 *
 116 * 2. If the microphones in a stereo pair do not appear in captured stream
 117 * in desired order due to board schematics choises they can be swapped with
 118 * the clk_edge parameter.
 119 *
 120 * 3. If PDM bit errors are seen in capture (poor quality) the skew parameter
 121 * that delays the sampling time of data by half cycles of DMIC source clock
 122 * can be tried for improvement. However there is no guarantee for this to fix
 123 * data integrity problems.
 124 */
 125struct sof_ipc_dai_dmic_pdm_ctrl {
 126        struct sof_ipc_hdr hdr;
 127        uint16_t id;            /**< PDM controller ID */
 128
 129        uint16_t enable_mic_a;  /**< Use A (left) channel mic (0 or 1)*/
 130        uint16_t enable_mic_b;  /**< Use B (right) channel mic (0 or 1)*/
 131
 132        uint16_t polarity_mic_a; /**< Optionally invert mic A signal (0 or 1) */
 133        uint16_t polarity_mic_b; /**< Optionally invert mic B signal (0 or 1) */
 134
 135        uint16_t clk_edge;      /**< Optionally swap data clock edge (0 or 1) */
 136        uint16_t skew;          /**< Adjust PDM data sampling vs. clock (0..15) */
 137
 138        uint16_t reserved[3];   /**< Make sure the total size is 4 bytes aligned */
 139} __packed;
 140
 141/* This struct contains the global settings for all 2ch PDM controllers. The
 142 * version number used in configuration data is checked vs. version used by
 143 * device driver src/drivers/dmic.c need to match. It is incremented from
 144 * initial value 1 if updates done for the to driver would alter the operation
 145 * of the microphone.
 146 *
 147 * Note: The microphone clock (pdmclk_min, pdmclk_max, duty_min, duty_max)
 148 * parameters need to be set as defined in microphone data sheet. E.g. clock
 149 * range 1.0 - 3.2 MHz is usually supported microphones. Some microphones are
 150 * multi-mode capable and there may be denied mic clock frequencies between
 151 * the modes. In such case set the clock range limits of the desired mode to
 152 * avoid the driver to set clock to an illegal rate.
 153 *
 154 * The duty cycle could be set to 48-52% if not known. Generally these
 155 * parameters can be altered within data sheet specified limits to match
 156 * required audio application performance power.
 157 *
 158 * The microphone clock needs to be usually about 50-80 times the used audio
 159 * sample rate. With highest sample rates above 48 kHz this can relaxed
 160 * somewhat.
 161 *
 162 * The parameter wake_up_time describes how long time the microphone needs
 163 * for the data line to produce valid output from mic clock start. The driver
 164 * will mute the captured audio for the given time. The min_clock_on_time
 165 * parameter is used to prevent too short clock bursts to happen. The driver
 166 * will keep the clock active after capture stop if this time is not yet
 167 * met. The unit for both is microseconds (us). Exceed of 100 ms will be
 168 * treated as an error.
 169 */
 170struct sof_ipc_dai_dmic_params {
 171        struct sof_ipc_hdr hdr;
 172        uint32_t driver_ipc_version;    /**< Version (1..N) */
 173
 174        uint32_t pdmclk_min;    /**< Minimum microphone clock in Hz (100000..N) */
 175        uint32_t pdmclk_max;    /**< Maximum microphone clock in Hz (min...N) */
 176
 177        uint32_t fifo_fs;       /**< FIFO sample rate in Hz (8000..96000) */
 178        uint32_t reserved_1;    /**< Reserved */
 179        uint16_t fifo_bits;     /**< FIFO word length (16 or 32) */
 180        uint16_t fifo_bits_b;   /**< Deprecated since firmware ABI 3.0.1 */
 181
 182        uint16_t duty_min;      /**< Min. mic clock duty cycle in % (20..80) */
 183        uint16_t duty_max;      /**< Max. mic clock duty cycle in % (min..80) */
 184
 185        uint32_t num_pdm_active; /**< Number of active pdm controllers. */
 186                                 /**< Range is 1..SOF_DAI_INTEL_DMIC_NUM_CTRL */
 187
 188        uint32_t wake_up_time;      /**< Time from clock start to data (us) */
 189        uint32_t min_clock_on_time; /**< Min. time that clk is kept on (us) */
 190        uint32_t unmute_ramp_time;  /**< Length of logarithmic gain ramp (ms) */
 191
 192        /* reserved for future use */
 193        uint32_t reserved[5];
 194
 195        /**< PDM controllers configuration */
 196        struct sof_ipc_dai_dmic_pdm_ctrl pdm[SOF_DAI_INTEL_DMIC_NUM_CTRL];
 197} __packed;
 198
 199#endif
 200