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Add Intel nhlt acpi table encoder plugin into topology2.0 processing. Nhlt internal structure is defined in: https://01.org/sites/default/files/595976_intel_sst_nhlt.pdf Nhlt acpi table contain vendor specific binary data blobs that are used in some Intel dsp platforms for configuring the dmic and ssp hardware. The function of this code is mainly to generate the vendor specific binary blobs, but as there is existing nhlt parser code and header in kernel there's no point of re-inventing the container: just use the existing nhlt acpi table format. Basically this code is creating similar nhlt acpi table that you would get from: cat /sys/firmware/acpi/tables/NHLT This code will have implementation for dmic and ssp endpoints. Thus the code will translate the topology dai tokens into vendor specific binary blobs and pack them into nhlt acpi table. Ssp and dmic code is lifted from Sound Open Firmware (sof) code base, thus it will have BSD-3 license. This plugin can be enabled from command line with: alsatplg -DPREPROCESS_PLUGINS="nhlt" -c foo.conf -p -o bar.tplg You can also dump the nhlt binary into a file with additional define: -DNHLT_BIN="nhlt.bin" Link: https://github.com/alsa-project/alsa-utils/pull/129 Signed-off-by: Jaska Uimonen <jaska.uimonen@linux.intel.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
52 lines
2.5 KiB
C
52 lines
2.5 KiB
C
// SPDX-License-Identifier: BSD-3-Clause
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//
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// Copyright(c) 2021 Intel Corporation. All rights reserved.
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//
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// Author: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
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// Jaska Uimonen <jaska.uimonen@linux.intel.com>
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#ifndef __DMIC_PROCESS_H
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#define __DMIC_PROCESS_H
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#include <stdint.h>
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/* initialize and set default values before parsing */
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int dmic_init_params(struct intel_nhlt_params *nhlt);
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/* set parameters when parsing topology2 conf */
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int dmic_set_params(struct intel_nhlt_params *nhlt, int dai_index, int driver_version,
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int io_clk, int num_pdm_active, int fifo_word_length, int clk_min, int clk_max,
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int duty_min, int duty_max, int sample_rate, int unmute_ramp_time);
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int dmic_set_pdm_params(struct intel_nhlt_params *nhlt, int pdm_index, int enable_a,
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int enable_b, int polarity_a, int polarity_b, int clk_edge, int skew);
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int dmic_set_ext_params(struct intel_nhlt_params *nhlt, uint32_t snr, uint32_t sensitivity);
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int dmic_set_mic_params(struct intel_nhlt_params *nhlt, int index,
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uint8_t type, uint8_t panel, uint32_t speaker_position_distance,
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uint32_t horizontal_offset, uint32_t vertical_offset,
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uint8_t frequency_low_band, uint8_t frequency_high_band,
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uint16_t direction_angle, uint16_t elevation_angle,
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uint16_t vertical_angle_begin, uint16_t vertical_angle_end,
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uint16_t horizontal_angle_begin, uint16_t horizontal_angle_end);
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/* calculate the blob after parsing the values*/
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int dmic_calculate(struct intel_nhlt_params *nhlt);
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/* get spec parameters when building the nhlt endpoint */
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int dmic_get_params(struct intel_nhlt_params *nhlt, int index, uint32_t *sample_rate,
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uint16_t *channel_count, uint32_t *bits_per_sample, uint8_t *array_type,
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uint8_t *num_mics, uint8_t *extension, uint32_t *snr, uint32_t *sensitivity);
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int dmic_get_mic_params(struct intel_nhlt_params *nhlt, int index,
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uint8_t *type, uint8_t *panel, uint32_t *speaker_position_distance,
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uint32_t *horizontal_offset, uint32_t *vertical_offset,
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uint8_t *frequency_low_band, uint8_t *frequency_high_band,
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uint16_t *direction_angle, uint16_t *elevation_angle,
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uint16_t *vertical_angle_begin, uint16_t *vertical_angle_end,
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uint16_t *horizontal_angle_begin, uint16_t *horizontal_angle_end);
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/* get vendor specific blob when building the nhlt endpoint */
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int dmic_get_vendor_blob_count(struct intel_nhlt_params *nhlt);
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int dmic_get_vendor_blob_size(struct intel_nhlt_params *nhlt, size_t *size);
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int dmic_get_vendor_blob(struct intel_nhlt_params *nhlt, uint8_t *vendor_blob);
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#endif
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