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