diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/codecs/bt-sco.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/sound/soc/codecs/bt-sco.c b/sound/soc/codecs/bt-sco.c new file mode 100644 index 0000000000..3afcef2dfa --- /dev/null +++ b/sound/soc/codecs/bt-sco.c @@ -0,0 +1,114 @@ +// 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"); |