73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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// Copyright (c) 2023 Intel Corporation
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/*
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* sof_sdw_cs_amp - Helpers to handle CS35L56 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 <sound/soc.h>
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#include <sound/soc-acpi.h>
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#include <sound/soc-dai.h>
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#include "sof_sdw_common.h"
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#define CODEC_NAME_SIZE 8
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static const struct snd_soc_dapm_widget sof_widgets[] = {
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SND_SOC_DAPM_SPK("Speakers", NULL),
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};
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static int cs_spk_init(struct snd_soc_pcm_runtime *rtd)
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{
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const char *dai_name = rtd->dai_link->codecs->dai_name;
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struct snd_soc_card *card = rtd->card;
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char codec_name[CODEC_NAME_SIZE];
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char widget_name[16];
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struct snd_soc_dapm_route route = { "Speakers", NULL, widget_name };
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struct snd_soc_dai *codec_dai;
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int i, ret;
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snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
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card->components = devm_kasprintf(card->dev, GFP_KERNEL,
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"%s spk:%s",
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card->components, codec_name);
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if (!card->components)
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return -ENOMEM;
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ret = snd_soc_dapm_new_controls(&card->dapm, sof_widgets,
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ARRAY_SIZE(sof_widgets));
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if (ret) {
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dev_err(card->dev, "widgets addition failed: %d\n", ret);
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return ret;
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}
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for_each_rtd_codec_dais(rtd, i, codec_dai) {
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if (!strstr(codec_dai->name, "cs35l56"))
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continue;
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snprintf(widget_name, sizeof(widget_name), "%s SPK",
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codec_dai->component->name_prefix);
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ret = snd_soc_dapm_add_routes(&card->dapm, &route, 1);
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if (ret)
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return ret;
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}
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return 0;
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}
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int sof_sdw_cs_amp_init(struct snd_soc_card *card,
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const struct snd_soc_acpi_link_adr *link,
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struct snd_soc_dai_link *dai_links,
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struct sof_sdw_codec_info *info,
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bool playback)
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{
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/* Do init on playback link only. */
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if (!playback)
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return 0;
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info->amp_num++;
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dai_links->init = cs_spk_init;
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return 0;
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}
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