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  */
rt_sdca_jack_add_codec_device_props(struct device * sdw_dev)24 static int rt_sdca_jack_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 
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 
46 static const struct snd_soc_dapm_widget rt_sdca_jack_widgets[] = {
47 	SND_SOC_DAPM_HP("Headphone", NULL),
48 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
49 };
50 
51 static const struct snd_soc_dapm_route rt711_sdca_map[] = {
52 	{ "Headphone", NULL, "rt711 HP" },
53 	{ "rt711 MIC2", NULL, "Headset Mic" },
54 };
55 
56 static const struct snd_soc_dapm_route rt712_sdca_map[] = {
57 	{ "Headphone", NULL, "rt712 HP" },
58 	{ "rt712 MIC2", NULL, "Headset Mic" },
59 };
60 
61 static const struct snd_kcontrol_new rt_sdca_jack_controls[] = {
62 	SOC_DAPM_PIN_SWITCH("Headphone"),
63 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
64 };
65 
66 static struct snd_soc_jack_pin rt_sdca_jack_pins[] = {
67 	{
68 		.pin    = "Headphone",
69 		.mask   = SND_JACK_HEADPHONE,
70 	},
71 	{
72 		.pin    = "Headset Mic",
73 		.mask   = SND_JACK_MICROPHONE,
74 	},
75 };
76 
rt_sdca_jack_rtd_init(struct snd_soc_pcm_runtime * rtd)77 static int rt_sdca_jack_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 = asoc_rtd_to_codec(rtd, 0);
82 	struct snd_soc_component *component = codec_dai->component;
83 	struct snd_soc_jack *jack;
84 	int ret;
85 
86 	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
87 					  "%s hs:%s-sdca",
88 					  card->components, component->name_prefix);
89 	if (!card->components)
90 		return -ENOMEM;
91 
92 	ret = snd_soc_add_card_controls(card, rt_sdca_jack_controls,
93 					ARRAY_SIZE(rt_sdca_jack_controls));
94 	if (ret) {
95 		dev_err(card->dev, "rt sdca jack controls addition failed: %d\n", ret);
96 		return ret;
97 	}
98 
99 	ret = snd_soc_dapm_new_controls(&card->dapm, rt_sdca_jack_widgets,
100 					ARRAY_SIZE(rt_sdca_jack_widgets));
101 	if (ret) {
102 		dev_err(card->dev, "rt sdca jack widgets addition failed: %d\n", ret);
103 		return ret;
104 	}
105 
106 	if (strstr(component->name_prefix, "rt711")) {
107 		ret = snd_soc_dapm_add_routes(&card->dapm, rt711_sdca_map,
108 					      ARRAY_SIZE(rt711_sdca_map));
109 	} else if (strstr(component->name_prefix, "rt712")) {
110 		ret = snd_soc_dapm_add_routes(&card->dapm, rt712_sdca_map,
111 					      ARRAY_SIZE(rt712_sdca_map));
112 	} else {
113 		dev_err(card->dev, "%s is not supported\n", component->name_prefix);
114 		return -EINVAL;
115 	}
116 
117 	if (ret) {
118 		dev_err(card->dev, "rt sdca jack map addition failed: %d\n", ret);
119 		return ret;
120 	}
121 
122 	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
123 					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
124 					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
125 					 SND_JACK_BTN_3,
126 					 &ctx->sdw_headset,
127 					 rt_sdca_jack_pins,
128 					 ARRAY_SIZE(rt_sdca_jack_pins));
129 	if (ret) {
130 		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
131 			ret);
132 		return ret;
133 	}
134 
135 	jack = &ctx->sdw_headset;
136 
137 	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
138 	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
139 	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
140 	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
141 
142 	ret = snd_soc_component_set_jack(component, jack, NULL);
143 
144 	if (ret)
145 		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
146 			ret);
147 
148 	return ret;
149 }
150 
sof_sdw_rt_sdca_jack_exit(struct snd_soc_card * card,struct snd_soc_dai_link * dai_link)151 int sof_sdw_rt_sdca_jack_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
152 {
153 	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
154 
155 	if (!ctx->headset_codec_dev)
156 		return 0;
157 
158 	if (!SOF_JACK_JDSRC(sof_sdw_quirk))
159 		return 0;
160 
161 	device_remove_software_node(ctx->headset_codec_dev);
162 	put_device(ctx->headset_codec_dev);
163 
164 	return 0;
165 }
166 
sof_sdw_rt_sdca_jack_init(struct snd_soc_card * card,const struct snd_soc_acpi_link_adr * link,struct snd_soc_dai_link * dai_links,struct sof_sdw_codec_info * info,bool playback)167 int sof_sdw_rt_sdca_jack_init(struct snd_soc_card *card,
168 			      const struct snd_soc_acpi_link_adr *link,
169 			      struct snd_soc_dai_link *dai_links,
170 			      struct sof_sdw_codec_info *info,
171 			      bool playback)
172 {
173 	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
174 	struct device *sdw_dev;
175 	int ret;
176 
177 	/*
178 	 * headset should be initialized once.
179 	 * Do it with dai link for playback.
180 	 */
181 	if (!playback)
182 		return 0;
183 
184 	sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
185 	if (!sdw_dev)
186 		return -EPROBE_DEFER;
187 
188 	ret = rt_sdca_jack_add_codec_device_props(sdw_dev);
189 	if (ret < 0) {
190 		put_device(sdw_dev);
191 		return ret;
192 	}
193 	ctx->headset_codec_dev = sdw_dev;
194 
195 	dai_links->init = rt_sdca_jack_rtd_init;
196 
197 	return 0;
198 }
199