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 snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card); 68 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 69 struct snd_soc_component *component; 70 struct snd_soc_jack *jack; 71 int ret; 72 73 component = dai->component; 74 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 75 "%s hs:rt711", 76 card->components); 77 if (!card->components) 78 return -ENOMEM; 79 80 ret = snd_soc_dapm_add_routes(dapm, rt711_map, 81 ARRAY_SIZE(rt711_map)); 82 83 if (ret) { 84 dev_err(card->dev, "rt711 map addition failed: %d\n", ret); 85 return ret; 86 } 87 88 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", 89 SND_JACK_HEADSET | SND_JACK_BTN_0 | 90 SND_JACK_BTN_1 | SND_JACK_BTN_2 | 91 SND_JACK_BTN_3, 92 &ctx->sdw_headset, 93 rt711_jack_pins, 94 ARRAY_SIZE(rt711_jack_pins)); 95 if (ret) { 96 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n", 97 ret); 98 return ret; 99 } 100 101 jack = &ctx->sdw_headset; 102 103 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 104 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 105 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 106 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 107 108 ret = snd_soc_component_set_jack(component, jack, NULL); 109 110 if (ret) 111 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n", 112 ret); 113 114 return ret; 115 } 116 EXPORT_SYMBOL_NS(asoc_sdw_rt711_rtd_init, "SND_SOC_SDW_UTILS"); 117 118 int asoc_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) 119 { 120 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 121 122 if (!ctx->headset_codec_dev) 123 return 0; 124 125 device_remove_software_node(ctx->headset_codec_dev); 126 put_device(ctx->headset_codec_dev); 127 128 return 0; 129 } 130 EXPORT_SYMBOL_NS(asoc_sdw_rt711_exit, "SND_SOC_SDW_UTILS"); 131 132 int asoc_sdw_rt711_init(struct snd_soc_card *card, 133 struct snd_soc_dai_link *dai_links, 134 struct asoc_sdw_codec_info *info, 135 bool playback) 136 { 137 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 138 struct device *sdw_dev; 139 int ret; 140 141 /* 142 * headset should be initialized once. 143 * Do it with dai link for playback. 144 */ 145 if (!playback) 146 return 0; 147 148 sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name); 149 if (!sdw_dev) 150 return -EPROBE_DEFER; 151 152 ret = rt711_add_codec_device_props(sdw_dev, ctx->mc_quirk); 153 if (ret < 0) { 154 put_device(sdw_dev); 155 return ret; 156 } 157 ctx->headset_codec_dev = sdw_dev; 158 159 return 0; 160 } 161 EXPORT_SYMBOL_NS(asoc_sdw_rt711_init, "SND_SOC_SDW_UTILS"); 162