1 // SPDX-License-Identifier: GPL-2.0-only 2 // This file incorporates work covered by the following copyright notice: 3 // Copyright (c) 2020 Intel Corporation 4 // Copyright (c) 2024 Advanced Micro Devices, Inc. 5 6 /* 7 * soc_sdw_rt711 - Helpers to handle RT711 from generic machine driver 8 */ 9 10 #include <linux/device.h> 11 #include <linux/errno.h> 12 #include <linux/input.h> 13 #include <linux/soundwire/sdw.h> 14 #include <linux/soundwire/sdw_type.h> 15 #include <sound/control.h> 16 #include <sound/soc.h> 17 #include <sound/soc-acpi.h> 18 #include <sound/soc-dapm.h> 19 #include <sound/jack.h> 20 #include <sound/soc_sdw_utils.h> 21 22 /* 23 * Note this MUST be called before snd_soc_register_card(), so that the props 24 * are in place before the codec component driver's probe function parses them. 25 */ 26 static int rt711_add_codec_device_props(struct device *sdw_dev, unsigned long quirk) 27 { 28 struct property_entry props[SOC_SDW_MAX_NO_PROPS] = {}; 29 struct fwnode_handle *fwnode; 30 int ret; 31 32 if (!SOC_SDW_JACK_JDSRC(quirk)) 33 return 0; 34 props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOC_SDW_JACK_JDSRC(quirk)); 35 36 fwnode = fwnode_create_software_node(props, NULL); 37 if (IS_ERR(fwnode)) 38 return PTR_ERR(fwnode); 39 40 ret = device_add_software_node(sdw_dev, to_software_node(fwnode)); 41 42 fwnode_handle_put(fwnode); 43 44 return ret; 45 } 46 47 static const struct snd_soc_dapm_route rt711_map[] = { 48 /* Headphones */ 49 { "Headphone", NULL, "rt711 HP" }, 50 { "rt711 MIC2", NULL, "Headset Mic" }, 51 }; 52 53 static struct snd_soc_jack_pin rt711_jack_pins[] = { 54 { 55 .pin = "Headphone", 56 .mask = SND_JACK_HEADPHONE, 57 }, 58 { 59 .pin = "Headset Mic", 60 .mask = SND_JACK_MICROPHONE, 61 }, 62 }; 63 64 int asoc_sdw_rt711_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) 65 { 66 struct snd_soc_card *card = rtd->card; 67 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 68 struct snd_soc_component *component; 69 struct snd_soc_jack *jack; 70 int ret; 71 72 component = dai->component; 73 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 74 "%s hs:rt711", 75 card->components); 76 if (!card->components) 77 return -ENOMEM; 78 79 ret = snd_soc_dapm_add_routes(&card->dapm, rt711_map, 80 ARRAY_SIZE(rt711_map)); 81 82 if (ret) { 83 dev_err(card->dev, "rt711 map addition failed: %d\n", ret); 84 return ret; 85 } 86 87 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", 88 SND_JACK_HEADSET | SND_JACK_BTN_0 | 89 SND_JACK_BTN_1 | SND_JACK_BTN_2 | 90 SND_JACK_BTN_3, 91 &ctx->sdw_headset, 92 rt711_jack_pins, 93 ARRAY_SIZE(rt711_jack_pins)); 94 if (ret) { 95 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n", 96 ret); 97 return ret; 98 } 99 100 jack = &ctx->sdw_headset; 101 102 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 103 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 104 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 105 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 106 107 ret = snd_soc_component_set_jack(component, jack, NULL); 108 109 if (ret) 110 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n", 111 ret); 112 113 return ret; 114 } 115 EXPORT_SYMBOL_NS(asoc_sdw_rt711_rtd_init, SND_SOC_SDW_UTILS); 116 117 int asoc_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) 118 { 119 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 120 121 if (!ctx->headset_codec_dev) 122 return 0; 123 124 device_remove_software_node(ctx->headset_codec_dev); 125 put_device(ctx->headset_codec_dev); 126 127 return 0; 128 } 129 EXPORT_SYMBOL_NS(asoc_sdw_rt711_exit, SND_SOC_SDW_UTILS); 130 131 int asoc_sdw_rt711_init(struct snd_soc_card *card, 132 struct snd_soc_dai_link *dai_links, 133 struct asoc_sdw_codec_info *info, 134 bool playback) 135 { 136 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 137 struct device *sdw_dev; 138 int ret; 139 140 /* 141 * headset should be initialized once. 142 * Do it with dai link for playback. 143 */ 144 if (!playback) 145 return 0; 146 147 sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name); 148 if (!sdw_dev) 149 return -EPROBE_DEFER; 150 151 ret = rt711_add_codec_device_props(sdw_dev, ctx->mc_quirk); 152 if (ret < 0) { 153 put_device(sdw_dev); 154 return ret; 155 } 156 ctx->headset_codec_dev = sdw_dev; 157 158 return 0; 159 } 160 EXPORT_SYMBOL_NS(asoc_sdw_rt711_init, SND_SOC_SDW_UTILS); 161