1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (c) 2023 Intel Corporation
5 * sof_sdw_cs42l42 - Helpers to handle CS42L42 from generic machine driver
8 #include <linux/device.h>
9 #include <linux/errno.h>
10 #include <linux/input.h>
11 #include <linux/soundwire/sdw.h>
12 #include <linux/soundwire/sdw_type.h>
13 #include <sound/control.h>
14 #include <sound/soc.h>
15 #include <sound/soc-acpi.h>
16 #include <sound/soc-dapm.h>
17 #include <sound/jack.h>
18 #include "sof_sdw_common.h"
20 static const struct snd_soc_dapm_widget cs42l42_widgets[] = {
21 SND_SOC_DAPM_HP("Headphone", NULL),
22 SND_SOC_DAPM_MIC("Headset Mic", NULL),
25 static const struct snd_soc_dapm_route cs42l42_map[] = {
26 /* HP jack connectors - unknown if we have jack detection */
27 {"Headphone", NULL, "cs42l42 HP"},
30 {"cs42l42 HS", NULL, "Headset Mic"},
33 static const struct snd_kcontrol_new cs42l42_controls[] = {
34 SOC_DAPM_PIN_SWITCH("Headphone"),
35 SOC_DAPM_PIN_SWITCH("Headset Mic"),
38 static struct snd_soc_jack_pin cs42l42_jack_pins[] = {
41 .mask = SND_JACK_HEADPHONE,
45 .mask = SND_JACK_MICROPHONE,
49 static int cs42l42_rtd_init(struct snd_soc_pcm_runtime *rtd)
51 struct snd_soc_card *card = rtd->card;
52 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
53 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
54 struct snd_soc_component *component = codec_dai->component;
55 struct snd_soc_jack *jack;
58 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
61 if (!card->components)
64 ret = snd_soc_add_card_controls(card, cs42l42_controls,
65 ARRAY_SIZE(cs42l42_controls));
67 dev_err(card->dev, "cs42l42 control addition failed: %d\n", ret);
71 ret = snd_soc_dapm_new_controls(&card->dapm, cs42l42_widgets,
72 ARRAY_SIZE(cs42l42_widgets));
74 dev_err(card->dev, "cs42l42 widgets addition failed: %d\n", ret);
78 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l42_map,
79 ARRAY_SIZE(cs42l42_map));
82 dev_err(card->dev, "cs42l42 map addition failed: %d\n", ret);
86 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
87 SND_JACK_HEADSET | SND_JACK_BTN_0 |
88 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
92 ARRAY_SIZE(cs42l42_jack_pins));
94 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
99 jack = &ctx->sdw_headset;
101 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
102 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
103 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
104 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
106 ret = snd_soc_component_set_jack(component, jack, NULL);
109 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
115 int sof_sdw_cs42l42_init(struct snd_soc_card *card,
116 const struct snd_soc_acpi_link_adr *link,
117 struct snd_soc_dai_link *dai_links,
118 struct sof_sdw_codec_info *info,
122 * headset should be initialized once.
123 * Do it with dai link for playback.
128 dai_links->init = cs42l42_rtd_init;