1 // SPDX-License-Identifier: GPL-2.0-only
3 // Copyright(c) 2019 Intel Corporation. All rights reserved.
5 #include <linux/module.h>
8 #include <sound/hda_codec.h>
9 #include <sound/hda_i915.h>
10 #include "../../codecs/hdac_hda.h"
12 #include "hda_dsp_common.h"
14 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)
17 * Search card topology and return PCM device number
18 * matching Nth HDMI device (zero-based index).
20 static struct snd_pcm *hda_dsp_hdmi_pcm_handle(struct snd_soc_card *card,
23 struct snd_soc_pcm_runtime *rtd;
27 for_each_card_rtds(card, rtd) {
29 rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].pcm : NULL;
30 if (spcm && strstr(spcm->id, "HDMI")) {
41 * Search card topology and register HDMI PCM related controls
44 int hda_dsp_hdmi_build_controls(struct snd_soc_card *card,
45 struct snd_soc_component *comp)
47 struct hdac_hda_priv *hda_pvt;
48 struct hda_codec *hcodec;
56 hda_pvt = snd_soc_component_get_drvdata(comp);
57 hcodec = hda_pvt->codec;
59 list_for_each_entry(hpcm, &hcodec->pcm_list_head, list) {
60 spcm = hda_dsp_hdmi_pcm_handle(card, i);
63 hpcm->device = spcm->device;
65 "mapping HDMI converter %d to PCM %d (%p)\n",
66 i, hpcm->device, spcm);
69 hpcm->device = SNDRV_PCM_INVALID_DEVICE;
71 "%s: no PCM in topology for HDMI converter %d\n",
76 snd_hdac_display_power(hcodec->core.bus,
77 HDA_CODEC_IDX_CONTROLLER, true);
78 err = snd_hda_codec_build_controls(hcodec);
80 dev_err(card->dev, "unable to create controls %d\n", err);
81 snd_hdac_display_power(hcodec->core.bus,
82 HDA_CODEC_IDX_CONTROLLER, false);
86 EXPORT_SYMBOL_NS(hda_dsp_hdmi_build_controls, SND_SOC_INTEL_HDA_DSP_COMMON);
90 MODULE_DESCRIPTION("ASoC Intel HDMI helpers");
91 MODULE_LICENSE("GPL");