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 = asoc_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}
183