Commit 13a56356 authored by Vinod Koul's avatar Vinod Koul
Browse files

Merge tag 'asoc-sdw-mockup-codec' into next 

ASoC: Add mockup SoundWire CODEC

Useful for bringup testing, not for production usage.
parents ff560946 0ccac3bc

sound/soc/codecs/Kconfig

+18 −0
Original line number Diff line number Diff line
@@ -187,6 +187,7 @@ config SND_SOC_ALL_CODECS 
	imply SND_SOC_RT715_SDCA_SDW

	imply SND_SOC_RT1308_SDW

	imply SND_SOC_RT1316_SDW

	imply SND_SOC_SDW_MOCKUP

	imply SND_SOC_SGTL5000

	imply SND_SOC_SI476X

	imply SND_SOC_SIMPLE_AMPLIFIER
@@ -1287,6 +1288,23 @@ config SND_SOC_RT715_SDCA_SDW 
	select REGMAP_SOUNDWIRE

	select REGMAP_SOUNDWIRE_MBQ



config SND_SOC_SDW_MOCKUP

	tristate "SoundWire mockup codec"

	depends on EXPERT

	depends on SOUNDWIRE

	help

	  This option enables a SoundWire mockup codec that does not drive the

	  bus, take part in the command/command protocol or generate data on a

	  Source port.

	  This option is only intended to be used for tests on a device

	  with a connector, in combination with a bus analyzer, or to test new

	  topologies that differ from the actual hardware layout.

	  This mockup device could be totally virtual but could also be a

	  real physical one with one key restriction: it is not allowed by the

	  SoundWire specification to be configured via a sideband mechanism and

	  generate audio data for capture. However, nothing prevents such a

	  peripheral device from snooping the bus.



#Freescale sgtl5000 codec

config SND_SOC_SGTL5000

	tristate "Freescale SGTL5000 CODEC"

sound/soc/codecs/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -203,6 +203,7 @@ snd-soc-rt711-objs := rt711.o rt711-sdw.o 
snd-soc-rt711-sdca-objs := rt711-sdca.o rt711-sdca-sdw.o

snd-soc-rt715-objs := rt715.o rt715-sdw.o

snd-soc-rt715-sdca-objs := rt715-sdca.o rt715-sdca-sdw.o

snd-soc-sdw-mockup-objs := sdw-mockup.o

snd-soc-sgtl5000-objs := sgtl5000.o

snd-soc-alc5623-objs := alc5623.o

snd-soc-alc5632-objs := alc5632.o
@@ -530,6 +531,7 @@ obj-$(CONFIG_SND_SOC_RT711) += snd-soc-rt711.o 
obj-$(CONFIG_SND_SOC_RT711_SDCA_SDW)     += snd-soc-rt711-sdca.o

obj-$(CONFIG_SND_SOC_RT715)     += snd-soc-rt715.o

obj-$(CONFIG_SND_SOC_RT715_SDCA_SDW)     += snd-soc-rt715-sdca.o

obj-$(CONFIG_SND_SOC_SDW_MOCKUP)     += snd-soc-sdw-mockup.o

obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o

obj-$(CONFIG_SND_SOC_SIGMADSP)	+= snd-soc-sigmadsp.o

obj-$(CONFIG_SND_SOC_SIGMADSP_I2C)	+= snd-soc-sigmadsp-i2c.o

sound/soc/codecs/sdw-mockup.c

0 → 100644
+310 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

//

// sdw-mockup.c -- a mockup SoundWire codec for tests where only the host

// drives the bus.

//

// Copyright(c) 2021 Intel Corporation

//

//



#include <linux/device.h>

#include <linux/mod_devicetable.h>

#include <linux/module.h>

#include <linux/soundwire/sdw.h>

#include <linux/soundwire/sdw_type.h>

#include <linux/soundwire/sdw_registers.h>

#include <sound/core.h>

#include <sound/pcm.h>

#include <sound/pcm_params.h>

#include <sound/soc.h>



struct  sdw_mockup_priv {

	struct sdw_slave *slave;

};



struct sdw_stream_data {

	struct sdw_stream_runtime *sdw_stream;

};



static int sdw_mockup_component_probe(struct snd_soc_component *component)

{

	return 0;

}



static void sdw_mockup_component_remove(struct snd_soc_component *component)

{

}



static const struct snd_soc_component_driver snd_soc_sdw_mockup_component = {

	.probe = sdw_mockup_component_probe,

	.remove = sdw_mockup_component_remove,

};



static int sdw_mockup_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,

				     int direction)

{

	struct sdw_stream_data *stream;



	if (!sdw_stream)

		return 0;



	stream = kzalloc(sizeof(*stream), GFP_KERNEL);

	if (!stream)

		return -ENOMEM;



	stream->sdw_stream = sdw_stream;



	/* Use tx_mask or rx_mask to configure stream tag and set dma_data */

	if (direction == SNDRV_PCM_STREAM_PLAYBACK)

		dai->playback_dma_data = stream;

	else

		dai->capture_dma_data = stream;



	return 0;

}



static void sdw_mockup_shutdown(struct snd_pcm_substream *substream,

				struct snd_soc_dai *dai)

{

	struct sdw_stream_data *stream;



	stream = snd_soc_dai_get_dma_data(dai, substream);

	snd_soc_dai_set_dma_data(dai, substream, NULL);

	kfree(stream);

}



static int sdw_mockup_pcm_hw_params(struct snd_pcm_substream *substream,

				    struct snd_pcm_hw_params *params,

				    struct snd_soc_dai *dai)

{

	struct snd_soc_component *component = dai->component;

	struct sdw_mockup_priv *sdw_mockup = snd_soc_component_get_drvdata(component);

	struct sdw_stream_config stream_config;

	struct sdw_port_config port_config;

	enum sdw_data_direction direction;

	struct sdw_stream_data *stream;

	int num_channels;

	int port;

	int ret;



	stream = snd_soc_dai_get_dma_data(dai, substream);

	if (!stream)

		return -EINVAL;



	if (!sdw_mockup->slave)

		return -EINVAL;



	/* SoundWire specific configuration */

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {

		direction = SDW_DATA_DIR_RX;

		port = 1;

	} else {

		direction = SDW_DATA_DIR_TX;

		port = 8;

	}



	stream_config.frame_rate = params_rate(params);

	stream_config.ch_count = params_channels(params);

	stream_config.bps = snd_pcm_format_width(params_format(params));

	stream_config.direction = direction;



	num_channels = params_channels(params);

	port_config.ch_mask = (1 << num_channels) - 1;

	port_config.num = port;



	ret = sdw_stream_add_slave(sdw_mockup->slave, &stream_config,

				   &port_config, 1, stream->sdw_stream);

	if (ret)

		dev_err(dai->dev, "Unable to configure port\n");



	return ret;

}



static int sdw_mockup_pcm_hw_free(struct snd_pcm_substream *substream,

				  struct snd_soc_dai *dai)

{

	struct snd_soc_component *component = dai->component;

	struct sdw_mockup_priv *sdw_mockup = snd_soc_component_get_drvdata(component);

	struct sdw_stream_data *stream =

		snd_soc_dai_get_dma_data(dai, substream);



	if (!sdw_mockup->slave)

		return -EINVAL;



	sdw_stream_remove_slave(sdw_mockup->slave, stream->sdw_stream);

	return 0;

}



static const struct snd_soc_dai_ops sdw_mockup_ops = {

	.hw_params	= sdw_mockup_pcm_hw_params,

	.hw_free	= sdw_mockup_pcm_hw_free,

	.set_sdw_stream	= sdw_mockup_set_sdw_stream,

	.shutdown	= sdw_mockup_shutdown,

};



static struct snd_soc_dai_driver sdw_mockup_dai[] = {

	{

		.name = "sdw-mockup-aif1",

		.id = 1,

		.playback = {

			.stream_name = "DP1 Playback",

			.channels_min = 1,

			.channels_max = 2,

		},

		.capture = {

			.stream_name = "DP8 Capture",

			.channels_min = 1,

			.channels_max = 2,

		},

		.ops = &sdw_mockup_ops,

	},

};



static int sdw_mockup_update_status(struct sdw_slave *slave,

				    enum sdw_slave_status status)

{

	return 0;

}



static int sdw_mockup_read_prop(struct sdw_slave *slave)

{

	struct sdw_slave_prop *prop = &slave->prop;

	int nval;

	int i, j;

	u32 bit;

	unsigned long addr;

	struct sdw_dpn_prop *dpn;



	prop->paging_support = false;



	/*

	 * first we need to allocate memory for set bits in port lists

	 * the port allocation is completely arbitrary:

	 * DP0 is not supported

	 * DP1 is sink

	 * DP8 is source

	 */

	prop->source_ports = BIT(8);

	prop->sink_ports = BIT(1);



	nval = hweight32(prop->source_ports);

	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,

					  sizeof(*prop->src_dpn_prop),

					  GFP_KERNEL);

	if (!prop->src_dpn_prop)

		return -ENOMEM;



	i = 0;

	dpn = prop->src_dpn_prop;

	addr = prop->source_ports;

	for_each_set_bit(bit, &addr, 32) {

		dpn[i].num = bit;

		dpn[i].type = SDW_DPN_FULL;

		dpn[i].simple_ch_prep_sm = true;

		i++;

	}



	/* do this again for sink now */

	nval = hweight32(prop->sink_ports);

	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,

					   sizeof(*prop->sink_dpn_prop),

					   GFP_KERNEL);

	if (!prop->sink_dpn_prop)

		return -ENOMEM;



	j = 0;

	dpn = prop->sink_dpn_prop;

	addr = prop->sink_ports;

	for_each_set_bit(bit, &addr, 32) {

		dpn[j].num = bit;

		dpn[j].type = SDW_DPN_FULL;

		dpn[j].simple_ch_prep_sm = true;

		j++;

	}



	prop->simple_clk_stop_capable = true;



	/* wake-up event */

	prop->wake_capable = 0;



	return 0;

}



static int sdw_mockup_bus_config(struct sdw_slave *slave,

				 struct sdw_bus_params *params)

{

	return 0;

}



static int sdw_mockup_interrupt_callback(struct sdw_slave *slave,

					 struct sdw_slave_intr_status *status)

{

	return 0;

}



static const struct sdw_slave_ops sdw_mockup_slave_ops = {

	.read_prop = sdw_mockup_read_prop,

	.interrupt_callback = sdw_mockup_interrupt_callback,

	.update_status = sdw_mockup_update_status,

	.bus_config = sdw_mockup_bus_config,

};



static int sdw_mockup_sdw_probe(struct sdw_slave *slave,

				const struct sdw_device_id *id)

{

	struct device *dev = &slave->dev;

	struct sdw_mockup_priv *sdw_mockup;

	int ret;



	sdw_mockup = devm_kzalloc(dev, sizeof(*sdw_mockup), GFP_KERNEL);

	if (!sdw_mockup)

		return -ENOMEM;



	dev_set_drvdata(dev, sdw_mockup);

	sdw_mockup->slave = slave;



	ret =  devm_snd_soc_register_component(dev,

					       &snd_soc_sdw_mockup_component,

					       sdw_mockup_dai,

					       ARRAY_SIZE(sdw_mockup_dai));



	return ret;

}



static int sdw_mockup_sdw_remove(struct sdw_slave *slave)

{

	return 0;

}



/*

 * Intel reserved parts ID with the following mapping expected:

 * 0xAAAA: generic full-duplex codec

 * 0xAA55: headset codec (mock-up of RT711/RT5682) - full-duplex

 * 0x55AA: amplifier (mock-up of RT1308/Maxim 98373) - playback only with

 * IV feedback

 * 0x5555: mic codec (mock-up of RT715) - capture-only

 */

static const struct sdw_device_id sdw_mockup_id[] = {

	SDW_SLAVE_ENTRY_EXT(0x0105, 0xAAAA, 0x0, 0, 0),

	SDW_SLAVE_ENTRY_EXT(0x0105, 0xAA55, 0x0, 0, 0),

	SDW_SLAVE_ENTRY_EXT(0x0105, 0x55AA, 0x0, 0, 0),

	SDW_SLAVE_ENTRY_EXT(0x0105, 0x5555, 0x0, 0, 0),

	{},

};

MODULE_DEVICE_TABLE(sdw, sdw_mockup_id);



static struct sdw_driver sdw_mockup_sdw_driver = {

	.driver = {

		.name = "sdw-mockup",

		.owner = THIS_MODULE,

	},

	.probe = sdw_mockup_sdw_probe,

	.remove = sdw_mockup_sdw_remove,

	.ops = &sdw_mockup_slave_ops,

	.id_table = sdw_mockup_id,

};

module_sdw_driver(sdw_mockup_sdw_driver);



MODULE_DESCRIPTION("ASoC SDW mockup codec driver");

MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");

MODULE_LICENSE("GPL");

sound/soc/intel/boards/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -602,6 +602,7 @@ config SND_SOC_INTEL_SOUNDWIRE_SOF_MACH 
	select SND_SOC_DMIC

	select SND_SOC_INTEL_HDA_DSP_COMMON

	select SND_SOC_INTEL_SOF_MAXIM_COMMON

	select SND_SOC_SDW_MOCKUP

	help

	  Add support for Intel SoundWire-based platforms connected to

	  MAX98373, RT700, RT711, RT1308 and RT715

sound/soc/intel/boards/sof_sdw.c

+41 −0
Original line number Diff line number Diff line
@@ -328,6 +328,19 @@ static const struct snd_soc_ops sdw_ops = { 
	.shutdown = sdw_shutdown,

};



static int sof_sdw_mic_codec_mockup_init(const struct snd_soc_acpi_link_adr *link,

					 struct snd_soc_dai_link *dai_links,

					 struct sof_sdw_codec_info *info,

					 bool playback)

{

	/*

	 * force DAI link to use same ID as RT715 and DMIC

	 * to reuse topologies

	 */

	dai_links->id = SDW_DMIC_DAI_ID;

	return 0;

}



static struct sof_sdw_codec_info codec_info_list[] = {

	{

		.part_id = 0x700,
@@ -410,6 +423,34 @@ static struct sof_sdw_codec_info codec_info_list[] = { 
		.dai_name = "rt5682-sdw",

		.init = sof_sdw_rt5682_init,

	},

	{

		.part_id = 0xaaaa, /* generic codec mockup */

		.version_id = 0,

		.direction = {true, true},

		.dai_name = "sdw-mockup-aif1",

		.init = NULL,

	},

	{

		.part_id = 0xaa55, /* headset codec mockup */

		.version_id = 0,

		.direction = {true, true},

		.dai_name = "sdw-mockup-aif1",

		.init = NULL,

	},

	{

		.part_id = 0x55aa, /* amplifier mockup */

		.version_id = 0,

		.direction = {true, false},

		.dai_name = "sdw-mockup-aif1",

		.init = NULL,

	},

	{

		.part_id = 0x5555,

		.version_id = 0,

		.direction = {false, true},

		.dai_name = "sdw-mockup-aif1",

		.init = sof_sdw_mic_codec_mockup_init,

	},

};



static inline int find_codec_info_part(u64 adr)