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
18static 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
24static 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
31static 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
37static 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
48static 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
113int sof_sdw_rt700_init(const struct snd_soc_acpi_link_adr *link,
114		       struct snd_soc_dai_link *dai_links,
115		       struct sof_sdw_codec_info *info,
116		       bool playback)
117{
118	/*
119	 * headset should be initialized once.
120	 * Do it with dai link for playback.
121	 */
122	if (!playback)
123		return 0;
124
125	dai_links->init = rt700_rtd_init;
126
127	return 0;
128}
129