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1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2//
3// This file is provided under a dual BSD/GPLv2 license. When using or
4// redistributing this file, you may do so under either license.
5//
6// Copyright(c) 2018 Intel Corporation. All rights reserved.
7//
8// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9//
10
11#include <linux/module.h>
12#include <sound/sof.h>
13#include "sof-audio.h"
14#include "sof-priv.h"
15
16static struct snd_soc_card sof_nocodec_card = {
17 .name = "nocodec", /* the sof- prefix is added by the core */
18 .topology_shortname = "sof-nocodec",
19 .owner = THIS_MODULE
20};
21
22static int sof_nocodec_bes_setup(struct device *dev,
23 struct snd_soc_dai_driver *drv,
24 struct snd_soc_dai_link *links,
25 int link_num, struct snd_soc_card *card)
26{
27 struct snd_soc_dai_link_component *dlc;
28 int i;
29
30 if (!drv || !links || !card)
31 return -EINVAL;
32
33 /* set up BE dai_links */
34 for (i = 0; i < link_num; i++) {
35 dlc = devm_kcalloc(dev, 2, sizeof(*dlc), GFP_KERNEL);
36 if (!dlc)
37 return -ENOMEM;
38
39 links[i].name = devm_kasprintf(dev, GFP_KERNEL,
40 "NoCodec-%d", i);
41 if (!links[i].name)
42 return -ENOMEM;
43
44 links[i].stream_name = links[i].name;
45
46 links[i].cpus = &dlc[0];
47 links[i].codecs = &snd_soc_dummy_dlc;
48 links[i].platforms = &dlc[1];
49
50 links[i].num_cpus = 1;
51 links[i].num_codecs = 1;
52 links[i].num_platforms = 1;
53
54 links[i].id = i;
55 links[i].no_pcm = 1;
56 links[i].cpus->dai_name = drv[i].name;
57 links[i].platforms->name = dev_name(dev->parent);
58 if (drv[i].playback.channels_min)
59 links[i].dpcm_playback = 1;
60 if (drv[i].capture.channels_min)
61 links[i].dpcm_capture = 1;
62
63 links[i].be_hw_params_fixup = sof_pcm_dai_link_fixup;
64 }
65
66 card->dai_link = links;
67 card->num_links = link_num;
68
69 return 0;
70}
71
72static int sof_nocodec_setup(struct device *dev,
73 u32 num_dai_drivers,
74 struct snd_soc_dai_driver *dai_drivers)
75{
76 struct snd_soc_dai_link *links;
77
78 /* create dummy BE dai_links */
79 links = devm_kcalloc(dev, num_dai_drivers, sizeof(struct snd_soc_dai_link), GFP_KERNEL);
80 if (!links)
81 return -ENOMEM;
82
83 return sof_nocodec_bes_setup(dev, dai_drivers, links, num_dai_drivers, &sof_nocodec_card);
84}
85
86static int sof_nocodec_probe(struct platform_device *pdev)
87{
88 struct snd_soc_card *card = &sof_nocodec_card;
89 struct snd_soc_acpi_mach *mach;
90 int ret;
91
92 card->dev = &pdev->dev;
93 card->topology_shortname_created = true;
94 mach = pdev->dev.platform_data;
95
96 ret = sof_nocodec_setup(card->dev, mach->mach_params.num_dai_drivers,
97 mach->mach_params.dai_drivers);
98 if (ret < 0)
99 return ret;
100
101 return devm_snd_soc_register_card(&pdev->dev, card);
102}
103
104static struct platform_driver sof_nocodec_audio = {
105 .probe = sof_nocodec_probe,
106 .driver = {
107 .name = "sof-nocodec",
108 .pm = &snd_soc_pm_ops,
109 },
110};
111module_platform_driver(sof_nocodec_audio)
112
113MODULE_DESCRIPTION("ASoC sof nocodec");
114MODULE_AUTHOR("Liam Girdwood");
115MODULE_LICENSE("Dual BSD/GPL");
116MODULE_ALIAS("platform:sof-nocodec");
1// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2//
3// This file is provided under a dual BSD/GPLv2 license. When using or
4// redistributing this file, you may do so under either license.
5//
6// Copyright(c) 2018 Intel Corporation. All rights reserved.
7//
8// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9//
10
11#include <linux/module.h>
12#include <sound/sof.h>
13#include "sof-priv.h"
14
15static struct snd_soc_card sof_nocodec_card = {
16 .name = "nocodec", /* the sof- prefix is added by the core */
17 .owner = THIS_MODULE
18};
19
20static int sof_nocodec_bes_setup(struct device *dev,
21 const struct snd_sof_dsp_ops *ops,
22 struct snd_soc_dai_link *links,
23 int link_num, struct snd_soc_card *card)
24{
25 struct snd_soc_dai_link_component *dlc;
26 int i;
27
28 if (!ops || !links || !card)
29 return -EINVAL;
30
31 /* set up BE dai_links */
32 for (i = 0; i < link_num; i++) {
33 dlc = devm_kzalloc(dev, 3 * sizeof(*dlc), GFP_KERNEL);
34 if (!dlc)
35 return -ENOMEM;
36
37 links[i].name = devm_kasprintf(dev, GFP_KERNEL,
38 "NoCodec-%d", i);
39 if (!links[i].name)
40 return -ENOMEM;
41
42 links[i].cpus = &dlc[0];
43 links[i].codecs = &dlc[1];
44 links[i].platforms = &dlc[2];
45
46 links[i].num_cpus = 1;
47 links[i].num_codecs = 1;
48 links[i].num_platforms = 1;
49
50 links[i].id = i;
51 links[i].no_pcm = 1;
52 links[i].cpus->dai_name = ops->drv[i].name;
53 links[i].platforms->name = dev_name(dev);
54 links[i].codecs->dai_name = "snd-soc-dummy-dai";
55 links[i].codecs->name = "snd-soc-dummy";
56 if (ops->drv[i].playback.channels_min)
57 links[i].dpcm_playback = 1;
58 if (ops->drv[i].capture.channels_min)
59 links[i].dpcm_capture = 1;
60 }
61
62 card->dai_link = links;
63 card->num_links = link_num;
64
65 return 0;
66}
67
68int sof_nocodec_setup(struct device *dev,
69 const struct snd_sof_dsp_ops *ops)
70{
71 struct snd_soc_dai_link *links;
72
73 /* create dummy BE dai_links */
74 links = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link) *
75 ops->num_drv, GFP_KERNEL);
76 if (!links)
77 return -ENOMEM;
78
79 return sof_nocodec_bes_setup(dev, ops, links, ops->num_drv,
80 &sof_nocodec_card);
81}
82EXPORT_SYMBOL(sof_nocodec_setup);
83
84static int sof_nocodec_probe(struct platform_device *pdev)
85{
86 struct snd_soc_card *card = &sof_nocodec_card;
87
88 card->dev = &pdev->dev;
89
90 return devm_snd_soc_register_card(&pdev->dev, card);
91}
92
93static int sof_nocodec_remove(struct platform_device *pdev)
94{
95 return 0;
96}
97
98static struct platform_driver sof_nocodec_audio = {
99 .probe = sof_nocodec_probe,
100 .remove = sof_nocodec_remove,
101 .driver = {
102 .name = "sof-nocodec",
103 .pm = &snd_soc_pm_ops,
104 },
105};
106module_platform_driver(sof_nocodec_audio)
107
108MODULE_DESCRIPTION("ASoC sof nocodec");
109MODULE_AUTHOR("Liam Girdwood");
110MODULE_LICENSE("Dual BSD/GPL");
111MODULE_ALIAS("platform:sof-nocodec");