125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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//
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// This file is provided under a dual BSD/GPLv2 license. When using or
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// redistributing this file, you may do so under either license.
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//
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// Copyright(c) 2018 Intel Corporation. All rights reserved.
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//
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// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
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//
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#include <linux/module.h>
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#include <sound/sof.h>
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#include "sof-audio.h"
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#include "sof-priv.h"
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static struct snd_soc_card sof_nocodec_card = {
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.name = "nocodec", /* the sof- prefix is added by the core */
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.topology_shortname = "sof-nocodec",
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.owner = THIS_MODULE
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};
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static int sof_nocodec_bes_setup(struct device *dev,
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struct snd_soc_dai_driver *drv,
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struct snd_soc_dai_link *links,
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int link_num, struct snd_soc_card *card)
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{
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struct snd_soc_dai_link_component *dlc;
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int i;
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if (!drv || !links || !card)
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return -EINVAL;
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/* set up BE dai_links */
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for (i = 0; i < link_num; i++) {
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dlc = devm_kcalloc(dev, 3, sizeof(*dlc), GFP_KERNEL);
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if (!dlc)
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return -ENOMEM;
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links[i].name = devm_kasprintf(dev, GFP_KERNEL,
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"NoCodec-%d", i);
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if (!links[i].name)
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return -ENOMEM;
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links[i].stream_name = links[i].name;
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links[i].cpus = &dlc[0];
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links[i].codecs = &dlc[1];
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links[i].platforms = &dlc[2];
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links[i].num_cpus = 1;
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links[i].num_codecs = 1;
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links[i].num_platforms = 1;
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links[i].id = i;
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links[i].no_pcm = 1;
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links[i].cpus->dai_name = drv[i].name;
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links[i].platforms->name = dev_name(dev->parent);
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links[i].codecs->dai_name = "snd-soc-dummy-dai";
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links[i].codecs->name = "snd-soc-dummy";
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if (drv[i].playback.channels_min)
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links[i].dpcm_playback = 1;
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if (drv[i].capture.channels_min)
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links[i].dpcm_capture = 1;
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links[i].be_hw_params_fixup = sof_pcm_dai_link_fixup;
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}
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card->dai_link = links;
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card->num_links = link_num;
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return 0;
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}
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static int sof_nocodec_setup(struct device *dev,
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u32 num_dai_drivers,
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struct snd_soc_dai_driver *dai_drivers)
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{
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struct snd_soc_dai_link *links;
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/* create dummy BE dai_links */
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links = devm_kcalloc(dev, num_dai_drivers, sizeof(struct snd_soc_dai_link), GFP_KERNEL);
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if (!links)
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return -ENOMEM;
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return sof_nocodec_bes_setup(dev, dai_drivers, links, num_dai_drivers, &sof_nocodec_card);
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}
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static int sof_nocodec_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &sof_nocodec_card;
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struct snd_soc_acpi_mach *mach;
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int ret;
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card->dev = &pdev->dev;
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card->topology_shortname_created = true;
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mach = pdev->dev.platform_data;
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ret = sof_nocodec_setup(card->dev, mach->mach_params.num_dai_drivers,
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mach->mach_params.dai_drivers);
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if (ret < 0)
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return ret;
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return devm_snd_soc_register_card(&pdev->dev, card);
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}
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static int sof_nocodec_remove(struct platform_device *pdev)
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{
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return 0;
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}
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static struct platform_driver sof_nocodec_audio = {
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.probe = sof_nocodec_probe,
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.remove = sof_nocodec_remove,
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.driver = {
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.name = "sof-nocodec",
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.pm = &snd_soc_pm_ops,
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},
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};
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module_platform_driver(sof_nocodec_audio)
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MODULE_DESCRIPTION("ASoC sof nocodec");
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MODULE_AUTHOR("Liam Girdwood");
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MODULE_LICENSE("Dual BSD/GPL");
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MODULE_ALIAS("platform:sof-nocodec");
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