xref: /linux/sound/soc/sdw_utils/soc_sdw_cs42l42.c (revision a6021aa24f6417416d93318bbfa022ab229c33c8)
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