ASoC: SOF: Intel: Probe compress operations (4c414da9) · Commits · EulixOS / Software / Kernel

sound/soc/sof/intel/Kconfig

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	@@ -305,6 +305,15 @@ config SND_SOC_SOF_HDA_AUDIO_CODEC
	Say Y if you want to enable HDAudio codecs with SOF.		Say Y if you want to enable HDAudio codecs with SOF.
	If unsure select "N".		If unsure select "N".

			config SND_SOC_SOF_HDA_PROBES
			bool "SOF enable probes over HDA"
			depends on SND_SOC_SOF_DEBUG_PROBES
			help
			This option enables the data probing for Intel(R).
			Intel(R) Skylake and newer platforms.
			Say Y if you want to enable probes.
			If unsure, select "N".

	config SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1		config SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1
	bool "SOF enable DMI Link L1"		bool "SOF enable DMI Link L1"
	help		help

sound/soc/sof/intel/Makefile

+1 −0

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	@@ -9,6 +9,7 @@ snd-sof-intel-hda-common-objs := hda.o hda-loader.o hda-stream.o hda-trace.o \
	hda-dsp.o hda-ipc.o hda-ctrl.o hda-pcm.o \		hda-dsp.o hda-ipc.o hda-ctrl.o hda-pcm.o \
	hda-dai.o hda-bus.o \		hda-dai.o hda-bus.o \
	apl.o cnl.o		apl.o cnl.o
			snd-sof-intel-hda-common-$(CONFIG_SND_SOC_SOF_HDA_PROBES) += hda-compress.o

	snd-sof-intel-hda-objs := hda-codec.o		snd-sof-intel-hda-objs := hda-codec.o

sound/soc/sof/intel/apl.c

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	@@ -73,6 +73,15 @@ const struct snd_sof_dsp_ops sof_apl_ops = {
	.pcm_trigger = hda_dsp_pcm_trigger,		.pcm_trigger = hda_dsp_pcm_trigger,
	.pcm_pointer = hda_dsp_pcm_pointer,		.pcm_pointer = hda_dsp_pcm_pointer,

			#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES)
			/* probe callbacks */
			.probe_assign = hda_probe_compr_assign,
			.probe_free = hda_probe_compr_free,
			.probe_set_params = hda_probe_compr_set_params,
			.probe_trigger = hda_probe_compr_trigger,
			.probe_pointer = hda_probe_compr_pointer,
			#endif

	/* firmware loading */		/* firmware loading */
	.load_firmware = snd_sof_load_firmware_raw,		.load_firmware = snd_sof_load_firmware_raw,

sound/soc/sof/intel/cnl.c

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	@@ -284,6 +284,15 @@ const struct snd_sof_dsp_ops sof_cnl_ops = {
	.pcm_trigger = hda_dsp_pcm_trigger,		.pcm_trigger = hda_dsp_pcm_trigger,
	.pcm_pointer = hda_dsp_pcm_pointer,		.pcm_pointer = hda_dsp_pcm_pointer,

			#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_PROBES)
			/* probe callbacks */
			.probe_assign = hda_probe_compr_assign,
			.probe_free = hda_probe_compr_free,
			.probe_set_params = hda_probe_compr_set_params,
			.probe_trigger = hda_probe_compr_trigger,
			.probe_pointer = hda_probe_compr_pointer,
			#endif

	/* firmware loading */		/* firmware loading */
	.load_firmware = snd_sof_load_firmware_raw,		.load_firmware = snd_sof_load_firmware_raw,

sound/soc/sof/intel/hda-compress.c

0 → 100644

+114 −0

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			// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
			//
			// This file is provided under a dual BSD/GPLv2 license. When using or
			// redistributing this file, you may do so under either license.
			//
			// Copyright(c) 2019-2020 Intel Corporation. All rights reserved.
			//
			// Author: Cezary Rojewski <cezary.rojewski@intel.com>
			//

			#include <sound/hdaudio_ext.h>
			#include <sound/soc.h>
			#include "../sof-priv.h"
			#include "hda.h"

			static inline struct hdac_ext_stream *
			hda_compr_get_stream(struct snd_compr_stream *cstream)
			{
			return cstream->runtime->private_data;
			}

			int hda_probe_compr_assign(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_soc_dai *dai)
			{
			struct hdac_ext_stream *stream;

			stream = hda_dsp_stream_get(sdev, cstream->direction);
			if (!stream)
			return -EBUSY;

			hdac_stream(stream)->curr_pos = 0;
			hdac_stream(stream)->cstream = cstream;
			cstream->runtime->private_data = stream;

			return hdac_stream(stream)->stream_tag;
			}

			int hda_probe_compr_free(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_soc_dai *dai)
			{
			struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
			int ret;

			ret = hda_dsp_stream_put(sdev, cstream->direction,
			hdac_stream(stream)->stream_tag);
			if (ret < 0) {
			dev_dbg(sdev->dev, "stream put failed: %d\n", ret);
			return ret;
			}

			hdac_stream(stream)->cstream = NULL;
			cstream->runtime->private_data = NULL;

			return 0;
			}

			int hda_probe_compr_set_params(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_compr_params *params,
			struct snd_soc_dai *dai)
			{
			struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
			struct hdac_stream *hstream = hdac_stream(stream);
			struct snd_dma_buffer *dmab;
			u32 bits, rate;
			int bps, ret;

			dmab = cstream->runtime->dma_buffer_p;
			/* compr params do not store bit depth, default to S32_LE */
			bps = snd_pcm_format_physical_width(SNDRV_PCM_FORMAT_S32_LE);
			if (bps < 0)
			return bps;
			bits = hda_dsp_get_bits(sdev, bps);
			rate = hda_dsp_get_mult_div(sdev, params->codec.sample_rate);

			hstream->format_val = rate \| bits \| (params->codec.ch_out - 1);
			hstream->bufsize = cstream->runtime->buffer_size;
			hstream->period_bytes = cstream->runtime->fragment_size;
			hstream->no_period_wakeup = 0;

			ret = hda_dsp_stream_hw_params(sdev, stream, dmab, NULL);
			if (ret < 0) {
			dev_err(sdev->dev, "error: hdac prepare failed: %x\n", ret);
			return ret;
			}

			return 0;
			}

			int hda_probe_compr_trigger(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream, int cmd,
			struct snd_soc_dai *dai)
			{
			struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);

			return hda_dsp_stream_trigger(sdev, stream, cmd);
			}

			int hda_probe_compr_pointer(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_compr_tstamp *tstamp,
			struct snd_soc_dai *dai)
			{
			struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
			struct snd_soc_pcm_stream *pstream;

			pstream = &dai->driver->capture;
			tstamp->copied_total = hdac_stream(stream)->curr_pos;
			tstamp->sampling_rate = snd_pcm_rate_bit_to_rate(pstream->rates);

			return 0;
			}