1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright (c) 2023 Intel Corporation
3
4/*
5 *  sof_sdw_cs42l42 - Helpers to handle CS42L42 from generic machine driver
6 */
7
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_board_helpers.h"
19#include "sof_sdw_common.h"
20
21static const struct snd_soc_dapm_widget cs42l42_widgets[] = {
22	SND_SOC_DAPM_HP("Headphone", NULL),
23	SND_SOC_DAPM_MIC("Headset Mic", NULL),
24};
25
26static const struct snd_soc_dapm_route cs42l42_map[] = {
27	/* HP jack connectors - unknown if we have jack detection */
28	{"Headphone", NULL, "cs42l42 HP"},
29
30	/* other jacks */
31	{"cs42l42 HS", NULL, "Headset Mic"},
32};
33
34static const struct snd_kcontrol_new cs42l42_controls[] = {
35	SOC_DAPM_PIN_SWITCH("Headphone"),
36	SOC_DAPM_PIN_SWITCH("Headset Mic"),
37};
38
39static struct snd_soc_jack_pin cs42l42_jack_pins[] = {
40	{
41		.pin    = "Headphone",
42		.mask   = SND_JACK_HEADPHONE,
43	},
44	{
45		.pin    = "Headset Mic",
46		.mask   = SND_JACK_MICROPHONE,
47	},
48};
49
50static const char * const jack_codecs[] = {
51	"cs42l42"
52};
53
54int cs42l42_rtd_init(struct snd_soc_pcm_runtime *rtd)
55{
56	struct snd_soc_card *card = rtd->card;
57	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
58	struct snd_soc_dai *codec_dai;
59	struct snd_soc_component *component;
60	struct snd_soc_jack *jack;
61	int ret;
62
63	codec_dai = get_codec_dai_by_name(rtd, jack_codecs, ARRAY_SIZE(jack_codecs));
64	if (!codec_dai)
65		return -EINVAL;
66
67	component = codec_dai->component;
68	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
69					  "%s hs:cs42l42",
70					  card->components);
71	if (!card->components)
72		return -ENOMEM;
73
74	ret = snd_soc_add_card_controls(card, cs42l42_controls,
75					ARRAY_SIZE(cs42l42_controls));
76	if (ret) {
77		dev_err(card->dev, "cs42l42 control addition failed: %d\n", ret);
78		return ret;
79	}
80
81	ret = snd_soc_dapm_new_controls(&card->dapm, cs42l42_widgets,
82					ARRAY_SIZE(cs42l42_widgets));
83	if (ret) {
84		dev_err(card->dev, "cs42l42 widgets addition failed: %d\n", ret);
85		return ret;
86	}
87
88	ret = snd_soc_dapm_add_routes(&card->dapm, cs42l42_map,
89				      ARRAY_SIZE(cs42l42_map));
90
91	if (ret) {
92		dev_err(card->dev, "cs42l42 map addition failed: %d\n", ret);
93		return ret;
94	}
95
96	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
97					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
98					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
99					 SND_JACK_BTN_3,
100					 &ctx->sdw_headset,
101					 cs42l42_jack_pins,
102					 ARRAY_SIZE(cs42l42_jack_pins));
103	if (ret) {
104		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
105			ret);
106		return ret;
107	}
108
109	jack = &ctx->sdw_headset;
110
111	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
112	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
113	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
114	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
115
116	ret = snd_soc_component_set_jack(component, jack, NULL);
117
118	if (ret)
119		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
120			ret);
121
122	return ret;
123}
124MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);
125