1/*
2 * Driver for generic Bluetooth SCO link
3 * Copyright 2011 Lars-Peter Clausen <lars@metafoo.de>
4 *
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.
9 *
10 */
11
12#include <linux/init.h>
13#include <linux/module.h>
14#include <linux/platform_device.h>
15
16#include <sound/soc.h>
17
18static const struct snd_soc_dapm_widget bt_sco_widgets[] = {
19	SND_SOC_DAPM_INPUT("RX"),
20	SND_SOC_DAPM_OUTPUT("TX"),
21};
22
23static const struct snd_soc_dapm_route bt_sco_routes[] = {
24	{ "Capture", NULL, "RX" },
25	{ "TX", NULL, "Playback" },
26};
27
28static struct snd_soc_dai_driver bt_sco_dai = {
29	.name = "bt-sco-pcm",
30	.playback = {
31		.stream_name = "Playback",
32		.channels_min = 1,
33		.channels_max = 1,
34		.rates = SNDRV_PCM_RATE_8000,
35		.formats = SNDRV_PCM_FMTBIT_S16_LE,
36	},
37	.capture = {
38		 .stream_name = "Capture",
39		.channels_min = 1,
40		.channels_max = 1,
41		.rates = SNDRV_PCM_RATE_8000,
42		.formats = SNDRV_PCM_FMTBIT_S16_LE,
43	},
44};
45
46static struct snd_soc_codec_driver soc_codec_dev_bt_sco = {
47	.dapm_widgets = bt_sco_widgets,
48	.num_dapm_widgets = ARRAY_SIZE(bt_sco_widgets),
49	.dapm_routes = bt_sco_routes,
50	.num_dapm_routes = ARRAY_SIZE(bt_sco_routes),
51};
52
53static int bt_sco_probe(struct platform_device *pdev)
54{
55	return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_bt_sco,
56			&bt_sco_dai, 1);
57}
58
59static int bt_sco_remove(struct platform_device *pdev)
60{
61	snd_soc_unregister_codec(&pdev->dev);
62
63	return 0;
64}
65
66static struct platform_device_id bt_sco_driver_ids[] = {
67	{
68		.name		= "dfbmcs320",
69	},
70	{
71		.name		= "bt-sco",
72	},
73	{},
74};
75MODULE_DEVICE_TABLE(platform, bt_sco_driver_ids);
76
77static struct platform_driver bt_sco_driver = {
78	.driver = {
79		.name = "bt-sco",
80	},
81	.probe = bt_sco_probe,
82	.remove = bt_sco_remove,
83	.id_table = bt_sco_driver_ids,
84};
85
86module_platform_driver(bt_sco_driver);
87
88MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
89MODULE_DESCRIPTION("ASoC generic bluetooth sco link driver");
90MODULE_LICENSE("GPL");
91