// 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_rt1316 - Helpers to handle RT1316 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/control.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-dapm.h>
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#include "sof_sdw_common.h"
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static const struct snd_soc_dapm_widget rt1316_widgets[] = {
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SND_SOC_DAPM_SPK("Speaker", NULL),
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};
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/*
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* dapm routes for rt1316 will be registered dynamically according
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* to the number of rt1316 used. The first two entries will be registered
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* for one codec case, and the last two entries are also registered
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* if two 1316s are used.
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*/
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static const struct snd_soc_dapm_route rt1316_map[] = {
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{ "Speaker", NULL, "rt1316-1 SPOL" },
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{ "Speaker", NULL, "rt1316-1 SPOR" },
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{ "Speaker", NULL, "rt1316-2 SPOL" },
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{ "Speaker", NULL, "rt1316-2 SPOR" },
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};
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static const struct snd_kcontrol_new rt1316_controls[] = {
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SOC_DAPM_PIN_SWITCH("Speaker"),
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};
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static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_card *card = rtd->card;
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int ret;
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card->components = devm_kasprintf(card->dev, GFP_KERNEL,
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"%s spk:rt1316",
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card->components);
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if (!card->components)
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return -ENOMEM;
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ret = snd_soc_add_card_controls(card, rt1316_controls,
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ARRAY_SIZE(rt1316_controls));
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if (ret) {
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dev_err(card->dev, "rt1316 controls addition failed: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dapm_new_controls(&card->dapm, rt1316_widgets,
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ARRAY_SIZE(rt1316_widgets));
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if (ret) {
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dev_err(card->dev, "rt1316 widgets addition failed: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dapm_add_routes(&card->dapm, rt1316_map, 2);
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if (ret)
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dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
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return ret;
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}
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static int second_spk_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_card *card = rtd->card;
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int ret;
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ret = snd_soc_dapm_add_routes(&card->dapm, rt1316_map + 2, 2);
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if (ret)
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dev_err(rtd->dev, "failed to add second SPK map: %d\n", ret);
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return ret;
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}
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static int all_spk_init(struct snd_soc_pcm_runtime *rtd)
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{
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int ret;
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ret = first_spk_init(rtd);
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if (ret)
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return ret;
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return second_spk_init(rtd);
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}
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int sof_sdw_rt1316_init(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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/* Count amp number and 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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if (info->amp_num == 1)
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dai_links->init = first_spk_init;
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if (info->amp_num == 2) {
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/*
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* if two 1316s are in one dai link, the init function
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* in this dai link will be first set for the first speaker,
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* and it should be reset to initialize all speakers when
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* the second speaker is found.
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*/
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if (dai_links->init)
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dai_links->init = all_spk_init;
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else
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dai_links->init = second_spk_init;
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}
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return 0;
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}
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