1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (c) 2020 Intel Corporation
3 //
4 // sof_sdw_max98373 - Helpers to handle 2x MAX98373
5 // codec devices from generic machine driver
6
7 #include <linux/device.h>
8 #include <linux/errno.h>
9 #include <sound/control.h>
10 #include <sound/soc.h>
11 #include <sound/soc-acpi.h>
12 #include <sound/soc-dapm.h>
13 #include "sof_sdw_common.h"
14 #include "sof_maxim_common.h"
15
16 static const struct snd_soc_dapm_widget mx8373_widgets[] = {
17 SND_SOC_DAPM_SPK("Left Spk", NULL),
18 SND_SOC_DAPM_SPK("Right Spk", NULL),
19 };
20
21 static const struct snd_kcontrol_new mx8373_controls[] = {
22 SOC_DAPM_PIN_SWITCH("Left Spk"),
23 SOC_DAPM_PIN_SWITCH("Right Spk"),
24 };
25
spk_init(struct snd_soc_pcm_runtime * rtd)26 static int spk_init(struct snd_soc_pcm_runtime *rtd)
27 {
28 struct snd_soc_card *card = rtd->card;
29 int ret;
30
31 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
32 "%s spk:mx8373",
33 card->components);
34 if (!card->components)
35 return -ENOMEM;
36
37 ret = snd_soc_add_card_controls(card, mx8373_controls,
38 ARRAY_SIZE(mx8373_controls));
39 if (ret) {
40 dev_err(card->dev, "mx8373 ctrls addition failed: %d\n", ret);
41 return ret;
42 }
43
44 ret = snd_soc_dapm_new_controls(&card->dapm, mx8373_widgets,
45 ARRAY_SIZE(mx8373_widgets));
46 if (ret) {
47 dev_err(card->dev, "mx8373 widgets addition failed: %d\n", ret);
48 return ret;
49 }
50
51 ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes, 2);
52 if (ret)
53 dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
54
55 return ret;
56 }
57
max98373_sdw_trigger(struct snd_pcm_substream * substream,int cmd)58 static int max98373_sdw_trigger(struct snd_pcm_substream *substream, int cmd)
59 {
60 int ret;
61
62 switch (cmd) {
63 case SNDRV_PCM_TRIGGER_START:
64 case SNDRV_PCM_TRIGGER_RESUME:
65 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
66 /* enable max98373 first */
67 ret = max98373_trigger(substream, cmd);
68 if (ret < 0)
69 break;
70
71 ret = sdw_trigger(substream, cmd);
72 break;
73 case SNDRV_PCM_TRIGGER_STOP:
74 case SNDRV_PCM_TRIGGER_SUSPEND:
75 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
76 ret = sdw_trigger(substream, cmd);
77 if (ret < 0)
78 break;
79
80 ret = max98373_trigger(substream, cmd);
81 break;
82 default:
83 ret = -EINVAL;
84 break;
85 }
86
87 return ret;
88 }
89
90 static const struct snd_soc_ops max_98373_sdw_ops = {
91 .startup = sdw_startup,
92 .prepare = sdw_prepare,
93 .trigger = max98373_sdw_trigger,
94 .hw_free = sdw_hw_free,
95 .shutdown = sdw_shutdown,
96 };
97
sof_sdw_mx8373_init(const struct snd_soc_acpi_link_adr * link,struct snd_soc_dai_link * dai_links,struct sof_sdw_codec_info * info,bool playback)98 int sof_sdw_mx8373_init(const struct snd_soc_acpi_link_adr *link,
99 struct snd_soc_dai_link *dai_links,
100 struct sof_sdw_codec_info *info,
101 bool playback)
102 {
103 info->amp_num++;
104 if (info->amp_num == 2)
105 dai_links->init = spk_init;
106
107 info->late_probe = true;
108
109 dai_links->ops = &max_98373_sdw_ops;
110
111 return 0;
112 }
113
sof_sdw_mx8373_late_probe(struct snd_soc_card * card)114 int sof_sdw_mx8373_late_probe(struct snd_soc_card *card)
115 {
116 struct snd_soc_dapm_context *dapm = &card->dapm;
117
118 /* Disable Left and Right Spk pin after boot */
119 snd_soc_dapm_disable_pin(dapm, "Left Spk");
120 snd_soc_dapm_disable_pin(dapm, "Right Spk");
121 return snd_soc_dapm_sync(dapm);
122 }
123
