mirror of
https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
ASoC: SOF: Add Nocodec machine driver support
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>
This commit is contained in:
parent
8920153c64
commit
8017b8fd37
|
@ -12,6 +12,7 @@
|
|||
#define __INCLUDE_SOUND_SOF_H
|
||||
|
||||
#include <linux/pci.h>
|
||||
#include <sound/soc.h>
|
||||
#include <sound/soc-acpi.h>
|
||||
|
||||
struct snd_sof_dsp_ops;
|
||||
|
@ -91,4 +92,9 @@ struct sof_dev_desc {
|
|||
const struct sof_arch_ops *arch_ops;
|
||||
};
|
||||
|
||||
int sof_nocodec_setup(struct device *dev,
|
||||
struct snd_sof_pdata *sof_pdata,
|
||||
struct snd_soc_acpi_mach *mach,
|
||||
const struct sof_dev_desc *desc,
|
||||
const struct snd_sof_dsp_ops *ops);
|
||||
#endif
|
||||
|
|
109
sound/soc/sof/nocodec.c
Normal file
109
sound/soc/sof/nocodec.c
Normal file
|
@ -0,0 +1,109 @@
|
|||
// 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) 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-priv.h"
|
||||
|
||||
static struct snd_soc_card sof_nocodec_card = {
|
||||
.name = "nocodec", /* the sof- prefix is added by the core */
|
||||
};
|
||||
|
||||
static int sof_nocodec_bes_setup(struct device *dev,
|
||||
const struct snd_sof_dsp_ops *ops,
|
||||
struct snd_soc_dai_link *links,
|
||||
int link_num, struct snd_soc_card *card)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (!ops || !links || !card)
|
||||
return -EINVAL;
|
||||
|
||||
/* set up BE dai_links */
|
||||
for (i = 0; i < link_num; i++) {
|
||||
links[i].name = devm_kasprintf(dev, GFP_KERNEL,
|
||||
"NoCodec-%d", i);
|
||||
if (!links[i].name)
|
||||
return -ENOMEM;
|
||||
|
||||
links[i].id = i;
|
||||
links[i].no_pcm = 1;
|
||||
links[i].cpu_dai_name = ops->drv[i].name;
|
||||
links[i].platform_name = dev_name(dev);
|
||||
links[i].codec_dai_name = "snd-soc-dummy-dai";
|
||||
links[i].codec_name = "snd-soc-dummy";
|
||||
links[i].dpcm_playback = 1;
|
||||
links[i].dpcm_capture = 1;
|
||||
}
|
||||
|
||||
card->dai_link = links;
|
||||
card->num_links = link_num;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sof_nocodec_setup(struct device *dev,
|
||||
struct snd_sof_pdata *sof_pdata,
|
||||
struct snd_soc_acpi_mach *mach,
|
||||
const struct sof_dev_desc *desc,
|
||||
const struct snd_sof_dsp_ops *ops)
|
||||
{
|
||||
struct snd_soc_dai_link *links;
|
||||
int ret;
|
||||
|
||||
if (!mach)
|
||||
return -EINVAL;
|
||||
|
||||
sof_pdata->drv_name = "sof-nocodec";
|
||||
|
||||
mach->drv_name = "sof-nocodec";
|
||||
sof_pdata->fw_filename = desc->nocodec_fw_filename;
|
||||
sof_pdata->tplg_filename = desc->nocodec_tplg_filename;
|
||||
|
||||
/* create dummy BE dai_links */
|
||||
links = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link) *
|
||||
ops->num_drv, GFP_KERNEL);
|
||||
if (!links)
|
||||
return -ENOMEM;
|
||||
|
||||
ret = sof_nocodec_bes_setup(dev, ops, links, ops->num_drv,
|
||||
&sof_nocodec_card);
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL(sof_nocodec_setup);
|
||||
|
||||
static int sof_nocodec_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_soc_card *card = &sof_nocodec_card;
|
||||
|
||||
card->dev = &pdev->dev;
|
||||
|
||||
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");
|
Loading…
Reference in a new issue