1// SPDX-License-Identifier: GPL-2.0-only
  2// Copyright (c) 2020 Intel Corporation
  3
  4/*
  5 *  sof_sdw_rt711 - Helpers to handle RT711 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_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_JACK_JDSRC(sof_sdw_quirk))
 31		return 0;
 32	props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_JACK_JDSRC(sof_sdw_quirk));
 33
 34	fwnode = fwnode_create_software_node(props, NULL);
 35	if (IS_ERR(fwnode))
 36		return PTR_ERR(fwnode);
 37
 38	ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
 39
 40	fwnode_handle_put(fwnode);
 41
 42	return ret;
 43}
 44
 45static const struct snd_soc_dapm_widget rt711_widgets[] = {
 46	SND_SOC_DAPM_HP("Headphone", NULL),
 47	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 48};
 49
 50static const struct snd_soc_dapm_route rt711_map[] = {
 51	/* Headphones */
 52	{ "Headphone", NULL, "rt711 HP" },
 53	{ "rt711 MIC2", NULL, "Headset Mic" },
 54};
 55
 56static const struct snd_kcontrol_new rt711_controls[] = {
 57	SOC_DAPM_PIN_SWITCH("Headphone"),
 58	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 59};
 60
 61static struct snd_soc_jack_pin rt711_jack_pins[] = {
 62	{
 63		.pin    = "Headphone",
 64		.mask   = SND_JACK_HEADPHONE,
 65	},
 66	{
 67		.pin    = "Headset Mic",
 68		.mask   = SND_JACK_MICROPHONE,
 69	},
 70};
 71
 72static int rt711_rtd_init(struct snd_soc_pcm_runtime *rtd)
 73{
 74	struct snd_soc_card *card = rtd->card;
 75	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
 76	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 77	struct snd_soc_component *component = codec_dai->component;
 78	struct snd_soc_jack *jack;
 79	int ret;
 80
 81	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
 82					  "%s hs:rt711",
 83					  card->components);
 84	if (!card->components)
 85		return -ENOMEM;
 86
 87	ret = snd_soc_add_card_controls(card, rt711_controls,
 88					ARRAY_SIZE(rt711_controls));
 89	if (ret) {
 90		dev_err(card->dev, "rt711 controls addition failed: %d\n", ret);
 91		return ret;
 92	}
 93
 94	ret = snd_soc_dapm_new_controls(&card->dapm, rt711_widgets,
 95					ARRAY_SIZE(rt711_widgets));
 96	if (ret) {
 97		dev_err(card->dev, "rt711 widgets addition failed: %d\n", ret);
 98		return ret;
 99	}
100
101	ret = snd_soc_dapm_add_routes(&card->dapm, rt711_map,
102				      ARRAY_SIZE(rt711_map));
103
104	if (ret) {
105		dev_err(card->dev, "rt711 map addition failed: %d\n", ret);
106		return ret;
107	}
108
109	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
110					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
111					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
112					 SND_JACK_BTN_3,
113					 &ctx->sdw_headset,
114					 rt711_jack_pins,
115					 ARRAY_SIZE(rt711_jack_pins));
116	if (ret) {
117		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
118			ret);
119		return ret;
120	}
121
122	jack = &ctx->sdw_headset;
123
124	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
125	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
126	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
127	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
128
129	ret = snd_soc_component_set_jack(component, jack, NULL);
130
131	if (ret)
132		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
133			ret);
134
135	return ret;
136}
137
138int sof_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
139{
140	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
141
142	if (!ctx->headset_codec_dev)
143		return 0;
144
145	device_remove_software_node(ctx->headset_codec_dev);
146	put_device(ctx->headset_codec_dev);
147
148	return 0;
149}
150
151int sof_sdw_rt711_init(struct snd_soc_card *card,
152		       const struct snd_soc_acpi_link_adr *link,
153		       struct snd_soc_dai_link *dai_links,
154		       struct sof_sdw_codec_info *info,
155		       bool playback)
156{
157	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
158	struct device *sdw_dev;
159	int ret;
160
161	/*
162	 * headset should be initialized once.
163	 * Do it with dai link for playback.
164	 */
165	if (!playback)
166		return 0;
167
168	sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
169	if (!sdw_dev)
170		return -EPROBE_DEFER;
171
172	ret = rt711_add_codec_device_props(sdw_dev);
173	if (ret < 0) {
174		put_device(sdw_dev);
175		return ret;
176	}
177	ctx->headset_codec_dev = sdw_dev;
178
179	dai_links->init = rt711_rtd_init;
180
181	return 0;
182}