1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (c) 2020 Intel Corporation
3
4 /*
5 * sof_sdw_rt700 - Helpers to handle RT700 from generic machine driver
6 */
7
8 #include <linux/device.h>
9 #include <linux/errno.h>
10 #include <linux/input.h>
11 #include <sound/control.h>
12 #include <sound/soc.h>
13 #include <sound/soc-acpi.h>
14 #include <sound/soc-dapm.h>
15 #include <sound/jack.h>
16 #include "sof_sdw_common.h"
17
18 static const struct snd_soc_dapm_widget rt700_widgets[] = {
19 SND_SOC_DAPM_HP("Headphones", NULL),
20 SND_SOC_DAPM_MIC("AMIC", NULL),
21 SND_SOC_DAPM_SPK("Speaker", NULL),
22 };
23
24 static const struct snd_soc_dapm_route rt700_map[] = {
25 /* Headphones */
26 { "Headphones", NULL, "rt700 HP" },
27 { "Speaker", NULL, "rt700 SPK" },
28 { "rt700 MIC2", NULL, "AMIC" },
29 };
30
31 static const struct snd_kcontrol_new rt700_controls[] = {
32 SOC_DAPM_PIN_SWITCH("Headphones"),
33 SOC_DAPM_PIN_SWITCH("AMIC"),
34 SOC_DAPM_PIN_SWITCH("Speaker"),
35 };
36
37 static struct snd_soc_jack_pin rt700_jack_pins[] = {
38 {
39 .pin = "Headphones",
40 .mask = SND_JACK_HEADPHONE,
41 },
42 {
43 .pin = "AMIC",
44 .mask = SND_JACK_MICROPHONE,
45 },
46 };
47
rt700_rtd_init(struct snd_soc_pcm_runtime * rtd)48 static int rt700_rtd_init(struct snd_soc_pcm_runtime *rtd)
49 {
50 struct snd_soc_card *card = rtd->card;
51 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
52 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
53 struct snd_soc_component *component = codec_dai->component;
54 struct snd_soc_jack *jack;
55 int ret;
56
57 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
58 "%s hs:rt700",
59 card->components);
60 if (!card->components)
61 return -ENOMEM;
62
63 ret = snd_soc_add_card_controls(card, rt700_controls,
64 ARRAY_SIZE(rt700_controls));
65 if (ret) {
66 dev_err(card->dev, "rt700 controls addition failed: %d\n", ret);
67 return ret;
68 }
69
70 ret = snd_soc_dapm_new_controls(&card->dapm, rt700_widgets,
71 ARRAY_SIZE(rt700_widgets));
72 if (ret) {
73 dev_err(card->dev, "rt700 widgets addition failed: %d\n", ret);
74 return ret;
75 }
76
77 ret = snd_soc_dapm_add_routes(&card->dapm, rt700_map,
78 ARRAY_SIZE(rt700_map));
79
80 if (ret) {
81 dev_err(card->dev, "rt700 map addition failed: %d\n", ret);
82 return ret;
83 }
84
85 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
86 SND_JACK_HEADSET | SND_JACK_BTN_0 |
87 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
88 SND_JACK_BTN_3,
89 &ctx->sdw_headset,
90 rt700_jack_pins,
91 ARRAY_SIZE(rt700_jack_pins));
92 if (ret) {
93 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
94 ret);
95 return ret;
96 }
97
98 jack = &ctx->sdw_headset;
99
100 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
101 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
102 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
103 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
104
105 ret = snd_soc_component_set_jack(component, jack, NULL);
106 if (ret)
107 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
108 ret);
109
110 return ret;
111 }
112
sof_sdw_rt700_init(struct snd_soc_card * card,const struct snd_soc_acpi_link_adr * link,struct snd_soc_dai_link * dai_links,struct sof_sdw_codec_info * info,bool playback)113 int sof_sdw_rt700_init(struct snd_soc_card *card,
114 const struct snd_soc_acpi_link_adr *link,
115 struct snd_soc_dai_link *dai_links,
116 struct sof_sdw_codec_info *info,
117 bool playback)
118 {
119 /*
120 * headset should be initialized once.
121 * Do it with dai link for playback.
122 */
123 if (!playback)
124 return 0;
125
126 dai_links->init = rt700_rtd_init;
127
128 return 0;
129 }
130