62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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// Copyright (c) 2020 Intel Corporation
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/*
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* sof_sdw_hdmi - Helpers to handle HDMI from generic machine driver
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*/
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <sound/soc.h>
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#include <sound/soc-acpi.h>
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#include <sound/jack.h>
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#include "sof_sdw_common.h"
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#include "hda_dsp_common.h"
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struct hdmi_pcm {
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struct list_head head;
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struct snd_soc_dai *codec_dai;
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int device;
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};
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int sof_sdw_hdmi_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct mc_private *ctx = snd_soc_card_get_drvdata(rtd->card);
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struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
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struct hdmi_pcm *pcm;
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pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
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if (!pcm)
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return -ENOMEM;
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/* dai_link id is 1:1 mapped to the PCM device */
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pcm->device = rtd->dai_link->id;
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pcm->codec_dai = dai;
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list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
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return 0;
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}
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#define NAME_SIZE 32
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int sof_sdw_hdmi_card_late_probe(struct snd_soc_card *card)
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{
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struct mc_private *ctx = snd_soc_card_get_drvdata(card);
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struct hdmi_pcm *pcm;
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struct snd_soc_component *component = NULL;
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if (!ctx->idisp_codec)
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return 0;
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if (list_empty(&ctx->hdmi_pcm_list))
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return -EINVAL;
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pcm = list_first_entry(&ctx->hdmi_pcm_list, struct hdmi_pcm,
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head);
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component = pcm->codec_dai->component;
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return hda_dsp_hdmi_build_controls(card, component);
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}
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