121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Driver for generic Bluetooth SCO link
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* Copyright 2011 Lars-Peter Clausen <lars@metafoo.de>
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <sound/soc.h>
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static const struct snd_soc_dapm_widget bt_sco_widgets[] = {
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SND_SOC_DAPM_INPUT("RX"),
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SND_SOC_DAPM_OUTPUT("TX"),
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SND_SOC_DAPM_AIF_IN("BT_SCO_RX", "Playback", 0,
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SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_AIF_OUT("BT_SCO_TX", "Capture", 0,
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SND_SOC_NOPM, 0, 0),
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};
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static const struct snd_soc_dapm_route bt_sco_routes[] = {
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{ "BT_SCO_TX", NULL, "RX" },
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{ "TX", NULL, "BT_SCO_RX" },
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};
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static struct snd_soc_dai_driver bt_sco_dai[] = {
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{
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.name = "bt-sco-pcm",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 1,
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.rates = SNDRV_PCM_RATE_8000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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},
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 1,
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.rates = SNDRV_PCM_RATE_8000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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},
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},
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{
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.name = "bt-sco-pcm-wb",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 1,
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.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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},
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 1,
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.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
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.formats = SNDRV_PCM_FMTBIT_S16_LE,
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},
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}
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};
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static const struct snd_soc_component_driver soc_component_dev_bt_sco = {
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.dapm_widgets = bt_sco_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bt_sco_widgets),
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.dapm_routes = bt_sco_routes,
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.num_dapm_routes = ARRAY_SIZE(bt_sco_routes),
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.idle_bias_on = 1,
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.use_pmdown_time = 1,
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.endianness = 1,
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};
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static int bt_sco_probe(struct platform_device *pdev)
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{
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return devm_snd_soc_register_component(&pdev->dev,
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&soc_component_dev_bt_sco,
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bt_sco_dai, ARRAY_SIZE(bt_sco_dai));
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}
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static int bt_sco_remove(struct platform_device *pdev)
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{
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return 0;
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}
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static const struct platform_device_id bt_sco_driver_ids[] = {
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{
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.name = "dfbmcs320",
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},
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{
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.name = "bt-sco",
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},
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{},
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};
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MODULE_DEVICE_TABLE(platform, bt_sco_driver_ids);
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#if defined(CONFIG_OF)
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static const struct of_device_id bt_sco_codec_of_match[] = {
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{ .compatible = "delta,dfbmcs320", },
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{ .compatible = "linux,bt-sco", },
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{},
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};
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MODULE_DEVICE_TABLE(of, bt_sco_codec_of_match);
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#endif
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static struct platform_driver bt_sco_driver = {
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.driver = {
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.name = "bt-sco",
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.of_match_table = of_match_ptr(bt_sco_codec_of_match),
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},
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.probe = bt_sco_probe,
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.remove = bt_sco_remove,
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.id_table = bt_sco_driver_ids,
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};
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module_platform_driver(bt_sco_driver);
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MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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MODULE_DESCRIPTION("ASoC generic bluetooth sco link driver");
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MODULE_LICENSE("GPL");
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