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61 lines
1.4 KiB
61 lines
1.4 KiB
// 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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