1 // SPDX-License-Identifier: GPL-2.0-only
2 // This file incorporates work covered by the following copyright notice:
3 // Copyright (c) 2023 Intel Corporation
4 // Copyright (c) 2024 Advanced Micro Devices, Inc.
5 /*
6 * soc_sdw_cs42l42 - Helpers to handle CS42L42 from generic machine driver
7 */
8
9 #include <linux/device.h>
10 #include <linux/errno.h>
11 #include <linux/input.h>
12 #include <linux/soundwire/sdw.h>
13 #include <linux/soundwire/sdw_type.h>
14 #include <sound/control.h>
15 #include <sound/soc.h>
16 #include <sound/soc-acpi.h>
17 #include <sound/soc-dapm.h>
18 #include <sound/jack.h>
19 #include <sound/soc_sdw_utils.h>
20
21 static const struct snd_soc_dapm_route cs42l42_map[] = {
22 /* HP jack connectors - unknown if we have jack detection */
23 {"Headphone", NULL, "cs42l42 HP"},
24
25 /* other jacks */
26 {"cs42l42 HS", NULL, "Headset Mic"},
27 };
28
29 static struct snd_soc_jack_pin cs42l42_jack_pins[] = {
30 {
31 .pin = "Headphone",
32 .mask = SND_JACK_HEADPHONE,
33 },
34 {
35 .pin = "Headset Mic",
36 .mask = SND_JACK_MICROPHONE,
37 },
38 };
39
40 int asoc_sdw_cs42l42_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
41 {
42 struct snd_soc_card *card = rtd->card;
43 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
44 struct snd_soc_component *component;
45 struct snd_soc_jack *jack;
46 int ret;
47
48 component = dai->component;
49 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
50 "%s hs:cs42l42",
51 card->components);
52 if (!card->components)
53 return -ENOMEM;
54
55 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l42_map,
56 ARRAY_SIZE(cs42l42_map));
57
58 if (ret) {
59 dev_err(card->dev, "cs42l42 map addition failed: %d\n", ret);
60 return ret;
61 }
62
63 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
64 SND_JACK_HEADSET | SND_JACK_BTN_0 |
65 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
66 SND_JACK_BTN_3,
67 &ctx->sdw_headset,
68 cs42l42_jack_pins,
69 ARRAY_SIZE(cs42l42_jack_pins));
70 if (ret) {
71 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
72 ret);
73 return ret;
74 }
75
76 jack = &ctx->sdw_headset;
77
78 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
79 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
80 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
81 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
82
83 ret = snd_soc_component_set_jack(component, jack, NULL);
84
85 if (ret)
86 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
87 ret);
88
89 return ret;
90 }
91 EXPORT_SYMBOL_NS(asoc_sdw_cs42l42_rtd_init, SND_SOC_SDW_UTILS);
92
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.