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 */
rt711_sdca_add_codec_device_props(struct device * sdw_dev)24 static int rt711_sdca_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_RT711_JDSRC(sof_sdw_quirk))
31 return 0;
32
33 props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_RT711_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 rt711_sdca_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 /* Headphones */
53 { "Headphone", NULL, "rt711 HP" },
54 { "rt711 MIC2", NULL, "Headset Mic" },
55 };
56
57 static const struct snd_kcontrol_new rt711_sdca_controls[] = {
58 SOC_DAPM_PIN_SWITCH("Headphone"),
59 SOC_DAPM_PIN_SWITCH("Headset Mic"),
60 };
61
62 static struct snd_soc_jack_pin rt711_sdca_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
rt711_sdca_rtd_init(struct snd_soc_pcm_runtime * rtd)73 static int rt711_sdca_rtd_init(struct snd_soc_pcm_runtime *rtd)
74 {
75 struct snd_soc_card *card = rtd->card;
76 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
77 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
78 struct snd_soc_component *component = codec_dai->component;
79 struct snd_soc_jack *jack;
80 int ret;
81
82 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
83 "%s hs:rt711-sdca",
84 card->components);
85 if (!card->components)
86 return -ENOMEM;
87
88 ret = snd_soc_add_card_controls(card, rt711_sdca_controls,
89 ARRAY_SIZE(rt711_sdca_controls));
90 if (ret) {
91 dev_err(card->dev, "rt711-sdca controls addition failed: %d\n", ret);
92 return ret;
93 }
94
95 ret = snd_soc_dapm_new_controls(&card->dapm, rt711_sdca_widgets,
96 ARRAY_SIZE(rt711_sdca_widgets));
97 if (ret) {
98 dev_err(card->dev, "rt711-sdca widgets addition failed: %d\n", ret);
99 return ret;
100 }
101
102 ret = snd_soc_dapm_add_routes(&card->dapm, rt711_sdca_map,
103 ARRAY_SIZE(rt711_sdca_map));
104
105 if (ret) {
106 dev_err(card->dev, "rt711-sdca map addition failed: %d\n", ret);
107 return ret;
108 }
109
110 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
111 SND_JACK_HEADSET | SND_JACK_BTN_0 |
112 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
113 SND_JACK_BTN_3,
114 &ctx->sdw_headset,
115 rt711_sdca_jack_pins,
116 ARRAY_SIZE(rt711_sdca_jack_pins));
117 if (ret) {
118 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
119 ret);
120 return ret;
121 }
122
123 jack = &ctx->sdw_headset;
124
125 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
126 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
127 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
128 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
129
130 ret = snd_soc_component_set_jack(component, jack, NULL);
131
132 if (ret)
133 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
134 ret);
135
136 return ret;
137 }
138
sof_sdw_rt711_sdca_exit(struct snd_soc_card * card,struct snd_soc_dai_link * dai_link)139 int sof_sdw_rt711_sdca_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
140 {
141 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
142
143 device_remove_software_node(ctx->headset_codec_dev);
144 put_device(ctx->headset_codec_dev);
145
146 return 0;
147 }
148
sof_sdw_rt711_sdca_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)149 int sof_sdw_rt711_sdca_init(struct snd_soc_card *card,
150 const struct snd_soc_acpi_link_adr *link,
151 struct snd_soc_dai_link *dai_links,
152 struct sof_sdw_codec_info *info,
153 bool playback)
154 {
155 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
156 struct device *sdw_dev;
157 int ret;
158
159 /*
160 * headset should be initialized once.
161 * Do it with dai link for playback.
162 */
163 if (!playback)
164 return 0;
165
166 sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
167 if (!sdw_dev)
168 return -EPROBE_DEFER;
169
170 ret = rt711_sdca_add_codec_device_props(sdw_dev);
171 if (ret < 0) {
172 put_device(sdw_dev);
173 return ret;
174 }
175 ctx->headset_codec_dev = sdw_dev;
176
177 dai_links->init = rt711_sdca_rtd_init;
178
179 return 0;
180 }
181