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 */
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_JACK_JDSRC(sof_sdw_quirk))
31 return 0;
32 props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_JACK_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_route rt711_map[] = {
46 /* Headphones */
47 { "Headphone", NULL, "rt711 HP" },
48 { "rt711 MIC2", NULL, "Headset Mic" },
49 };
50
51 static struct snd_soc_jack_pin rt711_jack_pins[] = {
52 {
53 .pin = "Headphone",
54 .mask = SND_JACK_HEADPHONE,
55 },
56 {
57 .pin = "Headset Mic",
58 .mask = SND_JACK_MICROPHONE,
59 },
60 };
61
62 int rt711_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
63 {
64 struct snd_soc_card *card = rtd->card;
65 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
66 struct snd_soc_component *component;
67 struct snd_soc_jack *jack;
68 int ret;
69
70 component = dai->component;
71 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
72 "%s hs:rt711",
73 card->components);
74 if (!card->components)
75 return -ENOMEM;
76
77 ret = snd_soc_dapm_add_routes(&card->dapm, rt711_map,
78 ARRAY_SIZE(rt711_map));
79
80 if (ret) {
81 dev_err(card->dev, "rt711 map addition failed: %d\n", ret);
82 return ret;
83 }
84
85 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
86 SND_JACK_HEADSET | SND_JACK_BTN_0 |
87 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
88 SND_JACK_BTN_3,
89 &ctx->sdw_headset,
90 rt711_jack_pins,
91 ARRAY_SIZE(rt711_jack_pins));
92 if (ret) {
93 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
94 ret);
95 return ret;
96 }
97
98 jack = &ctx->sdw_headset;
99
100 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
101 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
102 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
103 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
104
105 ret = snd_soc_component_set_jack(component, jack, NULL);
106
107 if (ret)
108 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
109 ret);
110
111 return ret;
112 }
113
114 int sof_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
115 {
116 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
117
118 if (!ctx->headset_codec_dev)
119 return 0;
120
121 device_remove_software_node(ctx->headset_codec_dev);
122 put_device(ctx->headset_codec_dev);
123
124 return 0;
125 }
126
127 int sof_sdw_rt711_init(struct snd_soc_card *card,
128 struct snd_soc_dai_link *dai_links,
129 struct sof_sdw_codec_info *info,
130 bool playback)
131 {
132 struct mc_private *ctx = snd_soc_card_get_drvdata(card);
133 struct device *sdw_dev;
134 int ret;
135
136 /*
137 * headset should be initialized once.
138 * Do it with dai link for playback.
139 */
140 if (!playback)
141 return 0;
142
143 sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
144 if (!sdw_dev)
145 return -EPROBE_DEFER;
146
147 ret = rt711_add_codec_device_props(sdw_dev);
148 if (ret < 0) {
149 put_device(sdw_dev);
150 return ret;
151 }
152 ctx->headset_codec_dev = sdw_dev;
153
154 return 0;
155 }
156 MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);
157
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