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120 lines
2.9 KiB
120 lines
2.9 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_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(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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/* 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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