1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2018, Linaro Limited. 3 // Copyright (c) 2018, The Linux Foundation. All rights reserved. 4 5 #include <dt-bindings/sound/qcom,q6afe.h> 6 #include <linux/module.h> 7 #include <sound/jack.h> 8 #include <linux/input-event-codes.h> 9 #include "common.h" 10 11 static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = { 12 SND_SOC_DAPM_HP("Headphone Jack", NULL), 13 SND_SOC_DAPM_MIC("Mic Jack", NULL), 14 }; 15 16 int qcom_snd_parse_of(struct snd_soc_card *card) 17 { 18 struct device_node *np; 19 struct device_node *codec = NULL; 20 struct device_node *platform = NULL; 21 struct device_node *cpu = NULL; 22 struct device *dev = card->dev; 23 struct snd_soc_dai_link *link; 24 struct of_phandle_args args; 25 struct snd_soc_dai_link_component *dlc; 26 int ret, num_links; 27 28 ret = snd_soc_of_parse_card_name(card, "model"); 29 if (ret == 0 && !card->name) 30 /* Deprecated, only for compatibility with old device trees */ 31 ret = snd_soc_of_parse_card_name(card, "qcom,model"); 32 if (ret) { 33 dev_err(dev, "Error parsing card name: %d\n", ret); 34 return ret; 35 } 36 37 if (of_property_read_bool(dev->of_node, "widgets")) { 38 ret = snd_soc_of_parse_audio_simple_widgets(card, "widgets"); 39 if (ret) 40 return ret; 41 } 42 43 /* DAPM routes */ 44 if (of_property_read_bool(dev->of_node, "audio-routing")) { 45 ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); 46 if (ret) 47 return ret; 48 } 49 /* Deprecated, only for compatibility with old device trees */ 50 if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) { 51 ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing"); 52 if (ret) 53 return ret; 54 } 55 56 ret = snd_soc_of_parse_pin_switches(card, "pin-switches"); 57 if (ret) 58 return ret; 59 60 ret = snd_soc_of_parse_aux_devs(card, "aux-devs"); 61 if (ret) 62 return ret; 63 64 /* Populate links */ 65 num_links = of_get_available_child_count(dev->of_node); 66 67 /* Allocate the DAI link array */ 68 card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL); 69 if (!card->dai_link) 70 return -ENOMEM; 71 72 card->num_links = num_links; 73 link = card->dai_link; 74 75 for_each_available_child_of_node(dev->of_node, np) { 76 dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL); 77 if (!dlc) { 78 ret = -ENOMEM; 79 goto err_put_np; 80 } 81 82 link->cpus = &dlc[0]; 83 link->platforms = &dlc[1]; 84 85 link->num_cpus = 1; 86 link->num_platforms = 1; 87 88 ret = of_property_read_string(np, "link-name", &link->name); 89 if (ret) { 90 dev_err(card->dev, "error getting codec dai_link name\n"); 91 goto err_put_np; 92 } 93 94 cpu = of_get_child_by_name(np, "cpu"); 95 platform = of_get_child_by_name(np, "platform"); 96 codec = of_get_child_by_name(np, "codec"); 97 98 if (!cpu) { 99 dev_err(dev, "%s: Can't find cpu DT node\n", link->name); 100 ret = -EINVAL; 101 goto err; 102 } 103 104 ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0); 105 if (ret) { 106 dev_err_probe(card->dev, ret, 107 "%s: error getting cpu dai name\n", link->name); 108 goto err; 109 } 110 111 link->id = args.args[0]; 112 113 if (platform) { 114 link->platforms->of_node = of_parse_phandle(platform, 115 "sound-dai", 116 0); 117 if (!link->platforms->of_node) { 118 dev_err(card->dev, "%s: platform dai not found\n", link->name); 119 ret = -EINVAL; 120 goto err; 121 } 122 } else { 123 link->platforms->of_node = link->cpus->of_node; 124 } 125 126 if (codec) { 127 ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); 128 if (ret < 0) { 129 dev_err_probe(card->dev, ret, 130 "%s: codec dai not found\n", link->name); 131 goto err; 132 } 133 134 if (platform) { 135 /* DPCM backend */ 136 link->no_pcm = 1; 137 link->ignore_pmdown_time = 1; 138 } 139 } else { 140 /* DPCM frontend */ 141 link->codecs = &snd_soc_dummy_dlc; 142 link->num_codecs = 1; 143 link->dynamic = 1; 144 } 145 146 if (platform || !codec) { 147 /* DPCM */ 148 snd_soc_dai_link_set_capabilities(link); 149 link->ignore_suspend = 1; 150 link->nonatomic = 1; 151 } 152 153 link->stream_name = link->name; 154 link++; 155 156 of_node_put(cpu); 157 of_node_put(codec); 158 of_node_put(platform); 159 } 160 161 if (!card->dapm_widgets) { 162 card->dapm_widgets = qcom_jack_snd_widgets; 163 card->num_dapm_widgets = ARRAY_SIZE(qcom_jack_snd_widgets); 164 } 165 166 return 0; 167 err: 168 of_node_put(cpu); 169 of_node_put(codec); 170 of_node_put(platform); 171 err_put_np: 172 of_node_put(np); 173 return ret; 174 } 175 EXPORT_SYMBOL_GPL(qcom_snd_parse_of); 176 177 static struct snd_soc_jack_pin qcom_headset_jack_pins[] = { 178 /* Headset */ 179 { 180 .pin = "Mic Jack", 181 .mask = SND_JACK_MICROPHONE, 182 }, 183 { 184 .pin = "Headphone Jack", 185 .mask = SND_JACK_HEADPHONE, 186 }, 187 }; 188 189 int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd, 190 struct snd_soc_jack *jack, bool *jack_setup) 191 { 192 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 193 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 194 struct snd_soc_card *card = rtd->card; 195 int rval, i; 196 197 if (!*jack_setup) { 198 rval = snd_soc_card_jack_new_pins(card, "Headset Jack", 199 SND_JACK_HEADSET | SND_JACK_LINEOUT | 200 SND_JACK_MECHANICAL | 201 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 202 SND_JACK_BTN_2 | SND_JACK_BTN_3 | 203 SND_JACK_BTN_4 | SND_JACK_BTN_5, 204 jack, qcom_headset_jack_pins, 205 ARRAY_SIZE(qcom_headset_jack_pins)); 206 207 if (rval < 0) { 208 dev_err(card->dev, "Unable to add Headphone Jack\n"); 209 return rval; 210 } 211 212 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA); 213 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 214 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 215 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 216 *jack_setup = true; 217 } 218 219 switch (cpu_dai->id) { 220 case TX_CODEC_DMA_TX_0: 221 case TX_CODEC_DMA_TX_1: 222 case TX_CODEC_DMA_TX_2: 223 case TX_CODEC_DMA_TX_3: 224 for_each_rtd_codec_dais(rtd, i, codec_dai) { 225 rval = snd_soc_component_set_jack(codec_dai->component, 226 jack, NULL); 227 if (rval != 0 && rval != -ENOTSUPP) { 228 dev_warn(card->dev, "Failed to set jack: %d\n", rval); 229 return rval; 230 } 231 } 232 233 break; 234 default: 235 break; 236 } 237 238 239 return 0; 240 } 241 EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup); 242 MODULE_LICENSE("GPL"); 243