1 // SPDX-License-Identifier: GPL-2.0-only 2 // This file incorporates work covered by the following copyright notice: 3 // Copyright (c) 2023 Intel Corporation 4 // Copyright (c) 2024 Advanced Micro Devices, Inc. 5 /* 6 * soc_sdw_cs42l42 - Helpers to handle CS42L42 from generic machine driver 7 */ 8 9 #include <linux/device.h> 10 #include <linux/errno.h> 11 #include <linux/input.h> 12 #include <linux/soundwire/sdw.h> 13 #include <linux/soundwire/sdw_type.h> 14 #include <sound/control.h> 15 #include <sound/soc.h> 16 #include <sound/soc-acpi.h> 17 #include <sound/soc-dapm.h> 18 #include <sound/jack.h> 19 #include <sound/soc_sdw_utils.h> 20 21 static const struct snd_soc_dapm_route cs42l42_map[] = { 22 /* HP jack connectors - unknown if we have jack detection */ 23 {"Headphone", NULL, "cs42l42 HP"}, 24 25 /* other jacks */ 26 {"cs42l42 HS", NULL, "Headset Mic"}, 27 }; 28 29 static struct snd_soc_jack_pin cs42l42_jack_pins[] = { 30 { 31 .pin = "Headphone", 32 .mask = SND_JACK_HEADPHONE, 33 }, 34 { 35 .pin = "Headset Mic", 36 .mask = SND_JACK_MICROPHONE, 37 }, 38 }; 39 40 int asoc_sdw_cs42l42_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) 41 { 42 struct snd_soc_card *card = rtd->card; 43 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card); 44 struct snd_soc_component *component; 45 struct snd_soc_jack *jack; 46 int ret; 47 48 component = dai->component; 49 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 50 "%s hs:cs42l42", 51 card->components); 52 if (!card->components) 53 return -ENOMEM; 54 55 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l42_map, 56 ARRAY_SIZE(cs42l42_map)); 57 58 if (ret) { 59 dev_err(card->dev, "cs42l42 map addition failed: %d\n", ret); 60 return ret; 61 } 62 63 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", 64 SND_JACK_HEADSET | SND_JACK_BTN_0 | 65 SND_JACK_BTN_1 | SND_JACK_BTN_2 | 66 SND_JACK_BTN_3, 67 &ctx->sdw_headset, 68 cs42l42_jack_pins, 69 ARRAY_SIZE(cs42l42_jack_pins)); 70 if (ret) { 71 dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n", 72 ret); 73 return ret; 74 } 75 76 jack = &ctx->sdw_headset; 77 78 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 79 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 80 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 81 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 82 83 ret = snd_soc_component_set_jack(component, jack, NULL); 84 85 if (ret) 86 dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n", 87 ret); 88 89 return ret; 90 } 91 EXPORT_SYMBOL_NS(asoc_sdw_cs42l42_rtd_init, SND_SOC_SDW_UTILS); 92