sound/soc/intel/boards/sof_sdw_hdmi.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Copyright (c) 2020 Intel Corporation
   3
   4 /*
   5  *  sof_sdw_hdmi - Helpers to handle HDMI from generic machine driver
   6  */
   7
   8 #include <linux/device.h>
   9 #include <linux/errno.h>
  10 #include <linux/kernel.h>
  11 #include <linux/list.h>
  12 #include <sound/soc.h>
  13 #include <sound/soc-acpi.h>
  14 #include <sound/jack.h>
  15 #include "sof_sdw_common.h"
  16 #include "../../codecs/hdac_hdmi.h"
  17 #include "hda_dsp_common.h"
  18
  19 static struct snd_soc_jack hdmi[MAX_HDMI_NUM];
  20
  21 struct hdmi_pcm {
  22         struct list_head head;
  23         struct snd_soc_dai *codec_dai;
  24         int device;
  25 };
  26
  27 int sof_sdw_hdmi_init(struct snd_soc_pcm_runtime *rtd)
  28 {
  29         struct mc_private *ctx = snd_soc_card_get_drvdata(rtd->card);
  30         struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
  31         struct hdmi_pcm *pcm;
  32
  33         pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
  34         if (!pcm)
  35                 return -ENOMEM;
  36
  37         /* dai_link id is 1:1 mapped to the PCM device */
  38         pcm->device = rtd->dai_link->id;
  39         pcm->codec_dai = dai;
  40
  41         list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
  42
  43         return 0;
  44 }
  45
  46 #define NAME_SIZE       32
  47 int sof_sdw_hdmi_card_late_probe(struct snd_soc_card *card)
  48 {
  49         struct mc_private *ctx = snd_soc_card_get_drvdata(card);
  50         struct hdmi_pcm *pcm;
  51         struct snd_soc_component *component = NULL;
  52         int err, i = 0;
  53         char jack_name[NAME_SIZE];
  54
  55         if (!ctx->idisp_codec)
  56                 return 0;
  57
  58         if (list_empty(&ctx->hdmi_pcm_list))
  59                 return -EINVAL;
  60
  61         pcm = list_first_entry(&ctx->hdmi_pcm_list, struct hdmi_pcm,
  62                                head);
  63         component = pcm->codec_dai->component;
  64
  65         if (ctx->common_hdmi_codec_drv)
  66                 return hda_dsp_hdmi_build_controls(card, component);
  67
  68         list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
  69                 component = pcm->codec_dai->component;
  70                 snprintf(jack_name, sizeof(jack_name),
  71                          "HDMI/DP, pcm=%d Jack", pcm->device);
  72                 err = snd_soc_card_jack_new(card, jack_name,
  73                                             SND_JACK_AVOUT, &hdmi[i],
  74                                             NULL, 0);
  75
  76                 if (err)
  77                         return err;
  78
  79                 err = snd_jack_add_new_kctl(hdmi[i].jack,
  80                                             jack_name, SND_JACK_AVOUT);
  81                 if (err)
  82                         dev_warn(component->dev, "failed creating Jack kctl\n");
  83
  84                 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
  85                                           &hdmi[i]);
  86                 if (err < 0)
  87                         return err;
  88
  89                 i++;
  90         }
  91
  92         if (!component)
  93                 return -EINVAL;
  94
  95         return hdac_hdmi_jack_port_init(component, &card->dapm);
  96 }