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_board_helpers.h"
19#include "sof_sdw_common.h"
20
21/*
22 * Note this MUST be called before snd_soc_register_card(), so that the props
23 * are in place before the codec component driver's probe function parses them.
24 */
25static int rt711_add_codec_device_props(struct device *sdw_dev)
26{
27	struct property_entry props[MAX_NO_PROPS] = {};
28	struct fwnode_handle *fwnode;
29	int ret;
30
31	if (!SOF_JACK_JDSRC(sof_sdw_quirk))
32		return 0;
33	props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_JACK_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_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_map[] = {
52	/* Headphones */
53	{ "Headphone", NULL, "rt711 HP" },
54	{ "rt711 MIC2", NULL, "Headset Mic" },
55};
56
57static const struct snd_kcontrol_new rt711_controls[] = {
58	SOC_DAPM_PIN_SWITCH("Headphone"),
59	SOC_DAPM_PIN_SWITCH("Headset Mic"),
60};
61
62static struct snd_soc_jack_pin rt711_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 const char * const jack_codecs[] = {
74	"rt711"
75};
76
77int rt711_rtd_init(struct snd_soc_pcm_runtime *rtd)
78{
79	struct snd_soc_card *card = rtd->card;
80	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
81	struct snd_soc_dai *codec_dai;
82	struct snd_soc_component *component;
83	struct snd_soc_jack *jack;
84	int ret;
85
86	codec_dai = get_codec_dai_by_name(rtd, jack_codecs, ARRAY_SIZE(jack_codecs));
87	if (!codec_dai)
88		return -EINVAL;
89
90	component = codec_dai->component;
91	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
92					  "%s hs:rt711",
93					  card->components);
94	if (!card->components)
95		return -ENOMEM;
96
97	ret = snd_soc_add_card_controls(card, rt711_controls,
98					ARRAY_SIZE(rt711_controls));
99	if (ret) {
100		dev_err(card->dev, "rt711 controls addition failed: %d\n", ret);
101		return ret;
102	}
103
104	ret = snd_soc_dapm_new_controls(&card->dapm, rt711_widgets,
105					ARRAY_SIZE(rt711_widgets));
106	if (ret) {
107		dev_err(card->dev, "rt711 widgets addition failed: %d\n", ret);
108		return ret;
109	}
110
111	ret = snd_soc_dapm_add_routes(&card->dapm, rt711_map,
112				      ARRAY_SIZE(rt711_map));
113
114	if (ret) {
115		dev_err(card->dev, "rt711 map addition failed: %d\n", ret);
116		return ret;
117	}
118
119	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
120					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
121					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
122					 SND_JACK_BTN_3,
123					 &ctx->sdw_headset,
124					 rt711_jack_pins,
125					 ARRAY_SIZE(rt711_jack_pins));
126	if (ret) {
127		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
128			ret);
129		return ret;
130	}
131
132	jack = &ctx->sdw_headset;
133
134	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
135	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
136	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
137	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
138
139	ret = snd_soc_component_set_jack(component, jack, NULL);
140
141	if (ret)
142		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
143			ret);
144
145	return ret;
146}
147
148int sof_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
149{
150	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
151
152	if (!ctx->headset_codec_dev)
153		return 0;
154
155	device_remove_software_node(ctx->headset_codec_dev);
156	put_device(ctx->headset_codec_dev);
157
158	return 0;
159}
160
161int sof_sdw_rt711_init(struct snd_soc_card *card,
162		       const struct snd_soc_acpi_link_adr *link,
163		       struct snd_soc_dai_link *dai_links,
164		       struct sof_sdw_codec_info *info,
165		       bool playback)
166{
167	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
168	struct device *sdw_dev;
169	int ret;
170
171	/*
172	 * headset should be initialized once.
173	 * Do it with dai link for playback.
174	 */
175	if (!playback)
176		return 0;
177
178	sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
179	if (!sdw_dev)
180		return -EPROBE_DEFER;
181
182	ret = rt711_add_codec_device_props(sdw_dev);
183	if (ret < 0) {
184		put_device(sdw_dev);
185		return ret;
186	}
187	ctx->headset_codec_dev = sdw_dev;
188
189	return 0;
190}
191MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);
192