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148 lines
3.5 KiB
148 lines
3.5 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_max98373 - Helpers to handle 2x MAX98373 |
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// codec devices from generic machine driver |
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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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#include "sof_maxim_common.h" |
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static const struct snd_soc_dapm_widget mx8373_widgets[] = { |
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SND_SOC_DAPM_SPK("Left Spk", NULL), |
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SND_SOC_DAPM_SPK("Right Spk", NULL), |
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}; |
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static const struct snd_kcontrol_new mx8373_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Left Spk"), |
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SOC_DAPM_PIN_SWITCH("Right Spk"), |
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}; |
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static int 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:mx8373", |
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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, mx8373_controls, |
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ARRAY_SIZE(mx8373_controls)); |
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if (ret) { |
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dev_err(card->dev, "mx8373 ctrls 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, mx8373_widgets, |
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ARRAY_SIZE(mx8373_widgets)); |
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if (ret) { |
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dev_err(card->dev, "mx8373 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, max_98373_dapm_routes, 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 mx8373_enable_spk_pin(struct snd_pcm_substream *substream, bool enable) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai; |
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struct snd_soc_dai *cpu_dai; |
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int ret; |
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int j; |
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/* set spk pin by playback only */ |
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if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
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return 0; |
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cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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for_each_rtd_codec_dais(rtd, j, codec_dai) { |
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struct snd_soc_dapm_context *dapm = |
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snd_soc_component_get_dapm(cpu_dai->component); |
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char pin_name[16]; |
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snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk", |
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codec_dai->component->name_prefix); |
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if (enable) |
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ret = snd_soc_dapm_enable_pin(dapm, pin_name); |
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else |
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ret = snd_soc_dapm_disable_pin(dapm, pin_name); |
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if (!ret) |
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snd_soc_dapm_sync(dapm); |
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} |
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return 0; |
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} |
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static int mx8373_sdw_prepare(struct snd_pcm_substream *substream) |
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{ |
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int ret; |
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/* according to soc_pcm_prepare dai link prepare is called first */ |
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ret = sdw_prepare(substream); |
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if (ret < 0) |
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return ret; |
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return mx8373_enable_spk_pin(substream, true); |
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} |
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static int mx8373_sdw_hw_free(struct snd_pcm_substream *substream) |
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{ |
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int ret; |
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/* according to soc_pcm_hw_free dai link free is called first */ |
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ret = sdw_hw_free(substream); |
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if (ret < 0) |
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return ret; |
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return mx8373_enable_spk_pin(substream, false); |
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} |
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static const struct snd_soc_ops max_98373_sdw_ops = { |
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.startup = sdw_startup, |
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.prepare = mx8373_sdw_prepare, |
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.trigger = sdw_trigger, |
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.hw_free = mx8373_sdw_hw_free, |
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.shutdown = sdw_shutdown, |
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}; |
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int sof_sdw_mx8373_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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info->amp_num++; |
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if (info->amp_num == 2) |
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dai_links->init = spk_init; |
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info->late_probe = true; |
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dai_links->ops = &max_98373_sdw_ops; |
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return 0; |
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} |
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int sof_sdw_mx8373_late_probe(struct snd_soc_card *card) |
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{ |
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struct snd_soc_dapm_context *dapm = &card->dapm; |
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/* Disable Left and Right Spk pin after boot */ |
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snd_soc_dapm_disable_pin(dapm, "Left Spk"); |
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snd_soc_dapm_disable_pin(dapm, "Right Spk"); |
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return snd_soc_dapm_sync(dapm); |
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}
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