sound/soc/qcom/common.c

   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 #define NAME_SIZE       32
  12
  13 static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = {
  14         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  15         SND_SOC_DAPM_MIC("Mic Jack", NULL),
  16         SND_SOC_DAPM_SPK("DP0 Jack", NULL),
  17         SND_SOC_DAPM_SPK("DP1 Jack", NULL),
  18         SND_SOC_DAPM_SPK("DP2 Jack", NULL),
  19         SND_SOC_DAPM_SPK("DP3 Jack", NULL),
  20         SND_SOC_DAPM_SPK("DP4 Jack", NULL),
  21         SND_SOC_DAPM_SPK("DP5 Jack", NULL),
  22         SND_SOC_DAPM_SPK("DP6 Jack", NULL),
  23         SND_SOC_DAPM_SPK("DP7 Jack", NULL),
  24 };
  25
  26 int qcom_snd_parse_of(struct snd_soc_card *card)
  27 {
  28         struct device_node *np;
  29         struct device_node *codec = NULL;
  30         struct device_node *platform = NULL;
  31         struct device_node *cpu = NULL;
  32         struct device *dev = card->dev;
  33         struct snd_soc_dai_link *link;
  34         struct of_phandle_args args;
  35         struct snd_soc_dai_link_component *dlc;
  36         int ret, num_links;
  37
  38         ret = snd_soc_of_parse_card_name(card, "model");
  39         if (ret == 0 && !card->name)
  40                 /* Deprecated, only for compatibility with old device trees */
  41                 ret = snd_soc_of_parse_card_name(card, "qcom,model");
  42         if (ret) {
  43                 dev_err(dev, "Error parsing card name: %d\n", ret);
  44                 return ret;
  45         }
  46
  47         if (of_property_read_bool(dev->of_node, "widgets")) {
  48                 ret = snd_soc_of_parse_audio_simple_widgets(card, "widgets");
  49                 if (ret)
  50                         return ret;
  51         }
  52
  53         /* DAPM routes */
  54         if (of_property_read_bool(dev->of_node, "audio-routing")) {
  55                 ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
  56                 if (ret)
  57                         return ret;
  58         }
  59         /* Deprecated, only for compatibility with old device trees */
  60         if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
  61                 ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing");
  62                 if (ret)
  63                         return ret;
  64         }
  65
  66         ret = snd_soc_of_parse_pin_switches(card, "pin-switches");
  67         if (ret)
  68                 return ret;
  69
  70         ret = snd_soc_of_parse_aux_devs(card, "aux-devs");
  71         if (ret)
  72                 return ret;
  73
  74         /* Populate links */
  75         num_links = of_get_available_child_count(dev->of_node);
  76
  77         /* Allocate the DAI link array */
  78         card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
  79         if (!card->dai_link)
  80                 return -ENOMEM;
  81
  82         card->num_links = num_links;
  83         link = card->dai_link;
  84
  85         for_each_available_child_of_node(dev->of_node, np) {
  86                 dlc = devm_kcalloc(dev, 2, sizeof(*dlc), GFP_KERNEL);
  87                 if (!dlc) {
  88                         ret = -ENOMEM;
  89                         goto err_put_np;
  90                 }
  91
  92                 link->cpus      = &dlc[0];
  93                 link->platforms = &dlc[1];
  94
  95                 link->num_cpus          = 1;
  96                 link->num_platforms     = 1;
  97
  98                 ret = of_property_read_string(np, "link-name", &link->name);
  99                 if (ret) {
 100                         dev_err(card->dev, "error getting codec dai_link name\n");
 101                         goto err_put_np;
 102                 }
 103
 104                 cpu = of_get_child_by_name(np, "cpu");
 105                 platform = of_get_child_by_name(np, "platform");
 106                 codec = of_get_child_by_name(np, "codec");
 107
 108                 if (!cpu) {
 109                         dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
 110                         ret = -EINVAL;
 111                         goto err;
 112                 }
 113
 114                 ret = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0);
 115                 if (ret) {
 116                         dev_err_probe(card->dev, ret,
 117                                       "%s: error getting cpu dai name\n", link->name);
 118                         goto err;
 119                 }
 120
 121                 link->id = args.args[0];
 122
 123                 if (platform) {
 124                         link->platforms->of_node = of_parse_phandle(platform,
 125                                         "sound-dai",
 126                                         0);
 127                         if (!link->platforms->of_node) {
 128                                 dev_err(card->dev, "%s: platform dai not found\n", link->name);
 129                                 ret = -EINVAL;
 130                                 goto err;
 131                         }
 132                 } else {
 133                         link->platforms->of_node = link->cpus->of_node;
 134                 }
 135
 136                 if (codec) {
 137                         ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
 138                         if (ret < 0) {
 139                                 dev_err_probe(card->dev, ret,
 140                                               "%s: codec dai not found\n", link->name);
 141                                 goto err;
 142                         }
 143
 144                         if (platform) {
 145                                 /* DPCM backend */
 146                                 link->no_pcm = 1;
 147                                 link->ignore_pmdown_time = 1;
 148                         }
 149                 } else {
 150                         /* DPCM frontend */
 151                         link->codecs     = &snd_soc_dummy_dlc;
 152                         link->num_codecs = 1;
 153                         link->dynamic = 1;
 154                 }
 155
 156                 if (platform || !codec) {
 157                         /* DPCM */
 158                         link->ignore_suspend = 1;
 159                         link->nonatomic = 1;
 160                 }
 161
 162                 link->stream_name = link->name;
 163                 link++;
 164
 165                 of_node_put(cpu);
 166                 of_node_put(codec);
 167                 of_node_put(platform);
 168         }
 169
 170         if (!card->dapm_widgets) {
 171                 card->dapm_widgets = qcom_jack_snd_widgets;
 172                 card->num_dapm_widgets = ARRAY_SIZE(qcom_jack_snd_widgets);
 173         }
 174
 175         return 0;
 176 err:
 177         of_node_put(cpu);
 178         of_node_put(codec);
 179         of_node_put(platform);
 180 err_put_np:
 181         of_node_put(np);
 182         return ret;
 183 }
 184 EXPORT_SYMBOL_GPL(qcom_snd_parse_of);
 185
 186 static struct snd_soc_jack_pin qcom_headset_jack_pins[] = {
 187         /* Headset */
 188         {
 189                 .pin = "Mic Jack",
 190                 .mask = SND_JACK_MICROPHONE,
 191         },
 192         {
 193                 .pin = "Headphone Jack",
 194                 .mask = SND_JACK_HEADPHONE,
 195         },
 196 };
 197
 198 int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
 199                             struct snd_soc_jack *jack, bool *jack_setup)
 200 {
 201         struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
 202         struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 203         struct snd_soc_card *card = rtd->card;
 204         int rval, i;
 205
 206         if (!*jack_setup) {
 207                 rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
 208                                              SND_JACK_HEADSET | SND_JACK_LINEOUT |
 209                                              SND_JACK_MECHANICAL |
 210                                              SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 211                                              SND_JACK_BTN_2 | SND_JACK_BTN_3 |
 212                                              SND_JACK_BTN_4 | SND_JACK_BTN_5,
 213                                              jack, qcom_headset_jack_pins,
 214                                              ARRAY_SIZE(qcom_headset_jack_pins));
 215
 216                 if (rval < 0) {
 217                         dev_err(card->dev, "Unable to add Headphone Jack\n");
 218                         return rval;
 219                 }
 220
 221                 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
 222                 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 223                 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 224                 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 225                 *jack_setup = true;
 226         }
 227
 228         switch (cpu_dai->id) {
 229         case TX_CODEC_DMA_TX_0:
 230         case TX_CODEC_DMA_TX_1:
 231         case TX_CODEC_DMA_TX_2:
 232         case TX_CODEC_DMA_TX_3:
 233                 for_each_rtd_codec_dais(rtd, i, codec_dai) {
 234                         rval = snd_soc_component_set_jack(codec_dai->component,
 235                                                           jack, NULL);
 236                         if (rval != 0 && rval != -ENOTSUPP) {
 237                                 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
 238                                 return rval;
 239                         }
 240                 }
 241
 242                 break;
 243         default:
 244                 break;
 245         }
 246
 247
 248         return 0;
 249 }
 250 EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup);
 251
 252 int qcom_snd_dp_jack_setup(struct snd_soc_pcm_runtime *rtd,
 253                            struct snd_soc_jack *dp_jack, int dp_pcm_id)
 254 {
 255         struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 256         struct snd_soc_card *card = rtd->card;
 257         char jack_name[NAME_SIZE];
 258         int rval, i;
 259
 260         snprintf(jack_name, sizeof(jack_name), "DP%d Jack", dp_pcm_id);
 261         rval = snd_soc_card_jack_new(card, jack_name, SND_JACK_AVOUT, dp_jack);
 262         if (rval)
 263                 return rval;
 264
 265         for_each_rtd_codec_dais(rtd, i, codec_dai) {
 266                 rval = snd_soc_component_set_jack(codec_dai->component, dp_jack, NULL);
 267                 if (rval != 0 && rval != -ENOTSUPP) {
 268                         dev_warn(card->dev, "Failed to set jack: %d\n", rval);
 269                         return rval;
 270                 }
 271         }
 272
 273         return 0;
 274 }
 275 EXPORT_SYMBOL_GPL(qcom_snd_dp_jack_setup);
 276
 277 MODULE_DESCRIPTION("ASoC Qualcomm helper functions");
 278 MODULE_LICENSE("GPL");