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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8017b8fd37
Add a simple "fallback" machine driver that can be used to enable SOF on boards with no codec device. This machine driver can also be forced for debug/development. Signed-off-by: Keyon Jie <yang.jie@linux.intel.com> Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
// SPDX-License-Identifier: (GPL-2.0 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-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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};
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static int sof_nocodec_bes_setup(struct device *dev,
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const struct snd_sof_dsp_ops *ops,
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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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int i;
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if (!ops || !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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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].id = i;
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links[i].no_pcm = 1;
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links[i].cpu_dai_name = ops->drv[i].name;
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links[i].platform_name = dev_name(dev);
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links[i].codec_dai_name = "snd-soc-dummy-dai";
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links[i].codec_name = "snd-soc-dummy";
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links[i].dpcm_playback = 1;
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links[i].dpcm_capture = 1;
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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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int sof_nocodec_setup(struct device *dev,
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struct snd_sof_pdata *sof_pdata,
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struct snd_soc_acpi_mach *mach,
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const struct sof_dev_desc *desc,
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const struct snd_sof_dsp_ops *ops)
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{
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struct snd_soc_dai_link *links;
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int ret;
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if (!mach)
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return -EINVAL;
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sof_pdata->drv_name = "sof-nocodec";
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mach->drv_name = "sof-nocodec";
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sof_pdata->fw_filename = desc->nocodec_fw_filename;
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sof_pdata->tplg_filename = desc->nocodec_tplg_filename;
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/* create dummy BE dai_links */
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links = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link) *
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ops->num_drv, GFP_KERNEL);
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if (!links)
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return -ENOMEM;
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ret = sof_nocodec_bes_setup(dev, ops, links, ops->num_drv,
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&sof_nocodec_card);
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return ret;
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}
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EXPORT_SYMBOL(sof_nocodec_setup);
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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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card->dev = &pdev->dev;
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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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