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