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 */
rt711_add_codec_device_props(struct device * sdw_dev)24 static 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_RT711_JDSRC(sof_sdw_quirk))
31 return 0;
32 props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_RT711_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
45 static 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
50 static const struct snd_soc_dapm_route rt711_map[] = {
51 /* Headphones */
52 { "Headphone", NULL, "rt711 HP" },
53 { "rt711 MIC2", NULL, "Headset Mic" },
54 };
55
56 static const struct snd_kcontrol_new rt711_controls[] = {
57 SOC_DAPM_PIN_SWITCH("Headphone"),
58 SOC_DAPM_PIN_SWITCH("Headset Mic"),
59 };
60
61 static 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
rt711_rtd_init(struct snd_soc_pcm_runtime * rtd)72 static 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(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
sof_sdw_rt711_exit(struct snd_soc_card * card,struct snd_soc_dai_link * dai_link)138 int 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 device_remove_software_node(ctx->headset_codec_dev);
143 put_device(ctx->headset_codec_dev);
144
145 return 0;
146 }
147
sof_sdw_rt711_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)148 int sof_sdw_rt711_init(struct snd_soc_card *card,
149 const struct snd_soc_acpi_link_adr *link,
150 struct snd_soc_dai_link *dai_links,
151 struct sof_sdw_codec_info *info,
152 bool playback)
153 {
154 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
155 struct device *sdw_dev;
156 int ret;
157
158 /*
159 * headset should be initialized once.
160 * Do it with dai link for playback.
161 */
162 if (!playback)
163 return 0;
164
165 sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
166 if (!sdw_dev)
167 return -EPROBE_DEFER;
168
169 ret = rt711_add_codec_device_props(sdw_dev);
170 if (ret < 0) {
171 put_device(sdw_dev);
172 return ret;
173 }
174 ctx->headset_codec_dev = sdw_dev;
175
176 dai_links->init = rt711_rtd_init;
177
178 return 0;
179 }
180