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_soc_dapm_route rt713_sdca_map[] = {
62 	{ "Headphone", NULL, "rt713 HP" },
63 	{ "rt713 MIC2", NULL, "Headset Mic" },
64 };
65 
66 static const struct snd_kcontrol_new rt_sdca_jack_controls[] = {
67 	SOC_DAPM_PIN_SWITCH("Headphone"),
68 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
69 };
70 
71 static struct snd_soc_jack_pin rt_sdca_jack_pins[] = {
72 	{
73 		.pin    = "Headphone",
74 		.mask   = SND_JACK_HEADPHONE,
75 	},
76 	{
77 		.pin    = "Headset Mic",
78 		.mask   = SND_JACK_MICROPHONE,
79 	},
80 };
81 
rt_sdca_jack_rtd_init(struct snd_soc_pcm_runtime * rtd)82 static int rt_sdca_jack_rtd_init(struct snd_soc_pcm_runtime *rtd)
83 {
84 	struct snd_soc_card *card = rtd->card;
85 	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
86 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
87 	struct snd_soc_component *component = codec_dai->component;
88 	struct snd_soc_jack *jack;
89 	int ret;
90 
91 	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
92 					  "%s hs:%s-sdca",
93 					  card->components, component->name_prefix);
94 	if (!card->components)
95 		return -ENOMEM;
96 
97 	ret = snd_soc_add_card_controls(card, rt_sdca_jack_controls,
98 					ARRAY_SIZE(rt_sdca_jack_controls));
99 	if (ret) {
100 		dev_err(card->dev, "rt sdca jack controls addition failed: %d\n", ret);
101 		return ret;
102 	}
103 
104 	ret = snd_soc_dapm_new_controls(&card->dapm, rt_sdca_jack_widgets,
105 					ARRAY_SIZE(rt_sdca_jack_widgets));
106 	if (ret) {
107 		dev_err(card->dev, "rt sdca jack widgets addition failed: %d\n", ret);
108 		return ret;
109 	}
110 
111 	if (strstr(component->name_prefix, "rt711")) {
112 		ret = snd_soc_dapm_add_routes(&card->dapm, rt711_sdca_map,
113 					      ARRAY_SIZE(rt711_sdca_map));
114 	} else if (strstr(component->name_prefix, "rt712")) {
115 		ret = snd_soc_dapm_add_routes(&card->dapm, rt712_sdca_map,
116 					      ARRAY_SIZE(rt712_sdca_map));
117 	} else if (strstr(component->name_prefix, "rt713")) {
118 		ret = snd_soc_dapm_add_routes(&card->dapm, rt713_sdca_map,
119 					      ARRAY_SIZE(rt713_sdca_map));
120 	} else {
121 		dev_err(card->dev, "%s is not supported\n", component->name_prefix);
122 		return -EINVAL;
123 	}
124 
125 	if (ret) {
126 		dev_err(card->dev, "rt sdca jack map addition failed: %d\n", ret);
127 		return ret;
128 	}
129 
130 	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
131 					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
132 					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
133 					 SND_JACK_BTN_3,
134 					 &ctx->sdw_headset,
135 					 rt_sdca_jack_pins,
136 					 ARRAY_SIZE(rt_sdca_jack_pins));
137 	if (ret) {
138 		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
139 			ret);
140 		return ret;
141 	}
142 
143 	jack = &ctx->sdw_headset;
144 
145 	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
146 	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
147 	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
148 	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
149 
150 	ret = snd_soc_component_set_jack(component, jack, NULL);
151 
152 	if (ret)
153 		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
154 			ret);
155 
156 	return ret;
157 }
158 
sof_sdw_rt_sdca_jack_exit(struct snd_soc_card * card,struct snd_soc_dai_link * dai_link)159 int sof_sdw_rt_sdca_jack_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
160 {
161 	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
162 
163 	if (!ctx->headset_codec_dev)
164 		return 0;
165 
166 	if (!SOF_JACK_JDSRC(sof_sdw_quirk))
167 		return 0;
168 
169 	device_remove_software_node(ctx->headset_codec_dev);
170 	put_device(ctx->headset_codec_dev);
171 	ctx->headset_codec_dev = NULL;
172 
173 	return 0;
174 }
175 
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)176 int sof_sdw_rt_sdca_jack_init(struct snd_soc_card *card,
177 			      const struct snd_soc_acpi_link_adr *link,
178 			      struct snd_soc_dai_link *dai_links,
179 			      struct sof_sdw_codec_info *info,
180 			      bool playback)
181 {
182 	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
183 	struct device *sdw_dev;
184 	int ret;
185 
186 	/*
187 	 * headset should be initialized once.
188 	 * Do it with dai link for playback.
189 	 */
190 	if (!playback)
191 		return 0;
192 
193 	sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
194 	if (!sdw_dev)
195 		return -EPROBE_DEFER;
196 
197 	ret = rt_sdca_jack_add_codec_device_props(sdw_dev);
198 	if (ret < 0) {
199 		put_device(sdw_dev);
200 		return ret;
201 	}
202 	ctx->headset_codec_dev = sdw_dev;
203 
204 	dai_links->init = rt_sdca_jack_rtd_init;
205 
206 	return 0;
207 }
208