2 * Driver for generic Bluetooth SCO link
3 * Copyright 2011 Lars-Peter Clausen <lars@metafoo.de>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
12 #include <linux/init.h>
13 #include <linux/module.h>
14 #include <linux/platform_device.h>
16 #include <sound/soc.h>
18 static const struct snd_soc_dapm_widget bt_sco_widgets[] = {
19 SND_SOC_DAPM_INPUT("RX"),
20 SND_SOC_DAPM_OUTPUT("TX"),
23 static const struct snd_soc_dapm_route bt_sco_routes[] = {
24 { "Capture", NULL, "RX" },
25 { "TX", NULL, "Playback" },
28 static struct snd_soc_dai_driver bt_sco_dai[] = {
32 .stream_name = "Playback",
35 .rates = SNDRV_PCM_RATE_8000,
36 .formats = SNDRV_PCM_FMTBIT_S16_LE,
39 .stream_name = "Capture",
42 .rates = SNDRV_PCM_RATE_8000,
43 .formats = SNDRV_PCM_FMTBIT_S16_LE,
47 .name = "bt-sco-pcm-wb",
49 .stream_name = "Playback",
52 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
53 .formats = SNDRV_PCM_FMTBIT_S16_LE,
56 .stream_name = "Capture",
59 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
60 .formats = SNDRV_PCM_FMTBIT_S16_LE,
65 static struct snd_soc_codec_driver soc_codec_dev_bt_sco = {
66 .dapm_widgets = bt_sco_widgets,
67 .num_dapm_widgets = ARRAY_SIZE(bt_sco_widgets),
68 .dapm_routes = bt_sco_routes,
69 .num_dapm_routes = ARRAY_SIZE(bt_sco_routes),
72 static int bt_sco_probe(struct platform_device *pdev)
74 return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_bt_sco,
75 bt_sco_dai, ARRAY_SIZE(bt_sco_dai));
78 static int bt_sco_remove(struct platform_device *pdev)
80 snd_soc_unregister_codec(&pdev->dev);
85 static const struct platform_device_id bt_sco_driver_ids[] = {
94 MODULE_DEVICE_TABLE(platform, bt_sco_driver_ids);
96 #if defined(CONFIG_OF)
97 static const struct of_device_id bt_sco_codec_of_match[] = {
98 { .compatible = "delta,dfbmcs320", },
99 { .compatible = "linux,bt-sco", },
102 MODULE_DEVICE_TABLE(of, bt_sco_codec_of_match);
105 static struct platform_driver bt_sco_driver = {
108 .of_match_table = of_match_ptr(bt_sco_codec_of_match),
110 .probe = bt_sco_probe,
111 .remove = bt_sco_remove,
112 .id_table = bt_sco_driver_ids,
115 module_platform_driver(bt_sco_driver);
117 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
118 MODULE_DESCRIPTION("ASoC generic bluetooth sco link driver");
119 MODULE_LICENSE("GPL");