github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-29 01:23:56 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

ASoC: SOF: Add Nocodec machine driver support

Browse Source 
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: Liam Girdwood <liam.r.girdwood@linux.intel.com>
This commit is contained in:
Liam Girdwood 2018-01-08 20:37:08 +00:00 committed by Pierre-Louis Bossart
parent e25bc7a982
commit efefbc60f7
2 changed files with 101 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
include/sound/sof.h
View File

@ -17,6 +17,7 @@
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <uapi/sound/sof-ipc.h>
@ -102,4 +103,13 @@ struct sof_dev_desc {
const char *nocodec_tplg_filename;
};
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,
struct snd_sof_dsp_ops *ops);
int sof_bes_setup(struct device *dev, struct snd_sof_dsp_ops *ops,
struct snd_soc_dai_link *links, int link_num,
struct snd_soc_card *card);
#endif

91
sound/soc/sof/nocodec.c Normal file
View File

@ -0,0 +1,91 @@
// 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/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/dmi.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/sof.h>
#include "sof-priv.h"
static struct snd_soc_card sof_nocodec_card = {
.name = "sof-nocodec",
};
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,
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";
mach->sof_fw_filename = desc->nocodec_fw_filename;
mach->sof_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_bes_setup(dev, ops, links, ops->num_drv,
&sof_nocodec_card);
if (ret) {
kfree(links);
return ret;
}
return 0;
}
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");