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// SPDX-License-Identifier: (GPL-2.0-only 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) 2018 Intel Corporation. All rights reserved.
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//
#include <linux/module.h>
#include <sound/sof.h>
#include "sof-audio.h"
#include "sof-priv.h"
static struct snd_soc_card sof_nocodec_card = {
.name = "nocodec", /* the sof- prefix is added by the core */
.topology_shortname = "sof-nocodec",
.owner = THIS_MODULE
};
static int sof_nocodec_bes_setup(struct device *dev,
struct snd_soc_dai_driver *drv,
struct snd_soc_dai_link *links,
int link_num, struct snd_soc_card *card)
{
struct snd_soc_dai_link_component *dlc;
int i;
if (!drv || !links || !card)
return -EINVAL;
/* set up BE dai_links */
for (i = 0; i < link_num; i++) {
dlc = devm_kcalloc(dev, 3, sizeof(*dlc), GFP_KERNEL);
if (!dlc)
return -ENOMEM;
links[i].name = devm_kasprintf(dev, GFP_KERNEL,
"NoCodec-%d", i);
if (!links[i].name)
return -ENOMEM;
links[i].stream_name = links[i].name;
links[i].cpus = &dlc[0];
links[i].codecs = &dlc[1];
links[i].platforms = &dlc[2];
links[i].num_cpus = 1;
links[i].num_codecs = 1;
links[i].num_platforms = 1;
links[i].id = i;
links[i].no_pcm = 1;
links[i].cpus->dai_name = drv[i].name;
links[i].platforms->name = dev_name(dev->parent);
links[i].codecs->dai_name = "snd-soc-dummy-dai";
links[i].codecs->name = "snd-soc-dummy";
if (drv[i].playback.channels_min)
links[i].dpcm_playback = 1;
if (drv[i].capture.channels_min)
links[i].dpcm_capture = 1;
links[i].be_hw_params_fixup = sof_pcm_dai_link_fixup;
}
card->dai_link = links;
card->num_links = link_num;
return 0;
}
static int sof_nocodec_setup(struct device *dev,
u32 num_dai_drivers,
struct snd_soc_dai_driver *dai_drivers)
{
struct snd_soc_dai_link *links;
/* create dummy BE dai_links */
links = devm_kcalloc(dev, num_dai_drivers, sizeof(struct snd_soc_dai_link), GFP_KERNEL);
if (!links)
return -ENOMEM;
return sof_nocodec_bes_setup(dev, dai_drivers, links, num_dai_drivers, &sof_nocodec_card);
}
static int sof_nocodec_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &sof_nocodec_card;
struct snd_soc_acpi_mach *mach;
int ret;
card->dev = &pdev->dev;
card->topology_shortname_created = true;
mach = pdev->dev.platform_data;
ret = sof_nocodec_setup(card->dev, mach->mach_params.num_dai_drivers,
mach->mach_params.dai_drivers);
if (ret < 0)
return ret;
return devm_snd_soc_register_card(&pdev->dev, card);
}
static int sof_nocodec_remove(struct platform_device *pdev)
{
return 0;
}
static struct platform_driver sof_nocodec_audio = {
.probe = sof_nocodec_probe,
.remove = sof_nocodec_remove,
.driver = {
.name = "sof-nocodec",
.pm = &snd_soc_pm_ops,
},
};
module_platform_driver(sof_nocodec_audio)
MODULE_DESCRIPTION("ASoC sof nocodec");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("platform:sof-nocodec");
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