1// SPDX-License-Identifier: GPL-2.0-only
  2// Copyright (c) 2020 Intel Corporation
  3
  4/*
  5 *  sof_sdw_rt711_sdca - Helpers to handle RT711-SDCA 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_sdw_common.h"
 19
 20/*
 21 * Note this MUST be called before snd_soc_register_card(), so that the props
 22 * are in place before the codec component driver's probe function parses them.
 23 */
 24static int rt711_sdca_add_codec_device_props(struct device *sdw_dev)
 25{
 26	struct property_entry props[MAX_NO_PROPS] = {};
 27	struct fwnode_handle *fwnode;
 28	int ret;
 29
 30	if (!SOF_RT711_JDSRC(sof_sdw_quirk))
 31		return 0;
 32
 33	props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_RT711_JDSRC(sof_sdw_quirk));
 34
 35	fwnode = fwnode_create_software_node(props, NULL);
 36	if (IS_ERR(fwnode))
 37		return PTR_ERR(fwnode);
 38
 39	ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
 40
 41	fwnode_handle_put(fwnode);
 42
 43	return ret;
 44}
 45
 46static const struct snd_soc_dapm_widget rt711_sdca_widgets[] = {
 47	SND_SOC_DAPM_HP("Headphone", NULL),
 48	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 49};
 50
 51static const struct snd_soc_dapm_route rt711_sdca_map[] = {
 52	/* Headphones */
 53	{ "Headphone", NULL, "rt711 HP" },
 54	{ "rt711 MIC2", NULL, "Headset Mic" },
 55};
 56
 57static const struct snd_kcontrol_new rt711_sdca_controls[] = {
 58	SOC_DAPM_PIN_SWITCH("Headphone"),
 59	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 60};
 61
 62static struct snd_soc_jack_pin rt711_sdca_jack_pins[] = {
 63	{
 64		.pin    = "Headphone",
 65		.mask   = SND_JACK_HEADPHONE,
 66	},
 67	{
 68		.pin    = "Headset Mic",
 69		.mask   = SND_JACK_MICROPHONE,
 70	},
 71};
 72
 73static int rt711_sdca_rtd_init(struct snd_soc_pcm_runtime *rtd)
 74{
 75	struct snd_soc_card *card = rtd->card;
 76	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
 77	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 78	struct snd_soc_component *component = codec_dai->component;
 79	struct snd_soc_jack *jack;
 80	int ret;
 81
 82	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
 83					  "%s hs:rt711-sdca",
 84					  card->components);
 85	if (!card->components)
 86		return -ENOMEM;
 87
 88	ret = snd_soc_add_card_controls(card, rt711_sdca_controls,
 89					ARRAY_SIZE(rt711_sdca_controls));
 90	if (ret) {
 91		dev_err(card->dev, "rt711-sdca controls addition failed: %d\n", ret);
 92		return ret;
 93	}
 94
 95	ret = snd_soc_dapm_new_controls(&card->dapm, rt711_sdca_widgets,
 96					ARRAY_SIZE(rt711_sdca_widgets));
 97	if (ret) {
 98		dev_err(card->dev, "rt711-sdca widgets addition failed: %d\n", ret);
 99		return ret;
100	}
101
102	ret = snd_soc_dapm_add_routes(&card->dapm, rt711_sdca_map,
103				      ARRAY_SIZE(rt711_sdca_map));
104
105	if (ret) {
106		dev_err(card->dev, "rt711-sdca map addition failed: %d\n", ret);
107		return ret;
108	}
109
110	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
111					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
112					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
113					 SND_JACK_BTN_3,
114					 &ctx->sdw_headset,
115					 rt711_sdca_jack_pins,
116					 ARRAY_SIZE(rt711_sdca_jack_pins));
117	if (ret) {
118		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
119			ret);
120		return ret;
121	}
122
123	jack = &ctx->sdw_headset;
124
125	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
126	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
127	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
128	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
129
130	ret = snd_soc_component_set_jack(component, jack, NULL);
131
132	if (ret)
133		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
134			ret);
135
136	return ret;
137}
138
139int sof_sdw_rt711_sdca_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
140{
141	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
142
143	if (!ctx->headset_codec_dev)
144		return 0;
145
146	device_remove_software_node(ctx->headset_codec_dev);
147	put_device(ctx->headset_codec_dev);
148
149	return 0;
150}
151
152int sof_sdw_rt711_sdca_init(struct snd_soc_card *card,
153			    const struct snd_soc_acpi_link_adr *link,
154			    struct snd_soc_dai_link *dai_links,
155			    struct sof_sdw_codec_info *info,
156			    bool playback)
157{
158	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
159	struct device *sdw_dev;
160	int ret;
161
162	/*
163	 * headset should be initialized once.
164	 * Do it with dai link for playback.
165	 */
166	if (!playback)
167		return 0;
168
169	sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
170	if (!sdw_dev)
171		return -EPROBE_DEFER;
172
173	ret = rt711_sdca_add_codec_device_props(sdw_dev);
174	if (ret < 0) {
175		put_device(sdw_dev);
176		return ret;
177	}
178	ctx->headset_codec_dev = sdw_dev;
179
180	dai_links->init = rt711_sdca_rtd_init;
181
182	return 0;
183}