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(const char * sdw_dev_name)24 static int rt711_sdca_add_codec_device_props(const char *sdw_dev_name)
25 {
26 struct property_entry props[MAX_NO_PROPS] = {};
27 struct device *sdw_dev;
28 int ret;
29
30 sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, sdw_dev_name);
31 if (!sdw_dev)
32 return -EPROBE_DEFER;
33
34 if (SOF_RT711_JDSRC(sof_sdw_quirk)) {
35 props[0] = PROPERTY_ENTRY_U32("realtek,jd-src",
36 SOF_RT711_JDSRC(sof_sdw_quirk));
37 }
38
39 ret = device_add_properties(sdw_dev, props);
40 put_device(sdw_dev);
41
42 return ret;
43 }
44
45 static const struct snd_soc_dapm_widget rt711_sdca_widgets[] = {
46 SND_SOC_DAPM_HP("Headphone", NULL),
47 SND_SOC_DAPM_MIC("Headset Mic", NULL),
48 };
49
50 static const struct snd_soc_dapm_route rt711_sdca_map[] = {
51 /* Headphones */
52 { "Headphone", NULL, "rt711 HP" },
53 { "rt711 MIC2", NULL, "Headset Mic" },
54 };
55
56 static const struct snd_kcontrol_new rt711_sdca_controls[] = {
57 SOC_DAPM_PIN_SWITCH("Headphone"),
58 SOC_DAPM_PIN_SWITCH("Headset Mic"),
59 };
60
61 static struct snd_soc_jack_pin rt711_sdca_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
rt711_sdca_rtd_init(struct snd_soc_pcm_runtime * rtd)72 static int rt711_sdca_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-sdca",
83 card->components);
84 if (!card->components)
85 return -ENOMEM;
86
87 ret = snd_soc_add_card_controls(card, rt711_sdca_controls,
88 ARRAY_SIZE(rt711_sdca_controls));
89 if (ret) {
90 dev_err(card->dev, "rt711-sdca controls addition failed: %d\n", ret);
91 return ret;
92 }
93
94 ret = snd_soc_dapm_new_controls(&card->dapm, rt711_sdca_widgets,
95 ARRAY_SIZE(rt711_sdca_widgets));
96 if (ret) {
97 dev_err(card->dev, "rt711-sdca widgets addition failed: %d\n", ret);
98 return ret;
99 }
100
101 ret = snd_soc_dapm_add_routes(&card->dapm, rt711_sdca_map,
102 ARRAY_SIZE(rt711_sdca_map));
103
104 if (ret) {
105 dev_err(card->dev, "rt711-sdca map addition failed: %d\n", ret);
106 return ret;
107 }
108
109 ret = snd_soc_card_jack_new(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_sdca_jack_pins,
115 ARRAY_SIZE(rt711_sdca_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
sof_sdw_rt711_sdca_exit(struct device * dev,struct snd_soc_dai_link * dai_link)138 int sof_sdw_rt711_sdca_exit(struct device *dev, struct snd_soc_dai_link *dai_link)
139 {
140 struct device *sdw_dev;
141
142 sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL,
143 dai_link->codecs[0].name);
144 if (!sdw_dev)
145 return -EINVAL;
146
147 device_remove_properties(sdw_dev);
148 put_device(sdw_dev);
149
150 return 0;
151 }
152
sof_sdw_rt711_sdca_init(const struct snd_soc_acpi_link_adr * link,struct snd_soc_dai_link * dai_links,struct sof_sdw_codec_info * info,bool playback)153 int sof_sdw_rt711_sdca_init(const struct snd_soc_acpi_link_adr *link,
154 struct snd_soc_dai_link *dai_links,
155 struct sof_sdw_codec_info *info,
156 bool playback)
157 {
158 int ret;
159
160 /*
161 * headset should be initialized once.
162 * Do it with dai link for playback.
163 */
164 if (!playback)
165 return 0;
166
167 ret = rt711_sdca_add_codec_device_props(dai_links->codecs[0].name);
168 if (ret < 0)
169 return ret;
170
171 dai_links->init = rt711_sdca_rtd_init;
172
173 return 0;
174 }
175