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