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-rw-r--r--sound/soc/codecs/bt-sco.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/sound/soc/codecs/bt-sco.c b/sound/soc/codecs/bt-sco.c
new file mode 100644
index 000000000..4086b6a53
--- /dev/null
+++ b/sound/soc/codecs/bt-sco.c
@@ -0,0 +1,120 @@
+// 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 int bt_sco_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+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,
+ .remove = bt_sco_remove,
+ .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");