1 /*
2 * SoC audio driver for EM-X270, eXeda and CM-X300
3 *
4 * Copyright 2007, 2009 CompuLab, Ltd.
5 *
6 * Author: Mike Rapoport <mike@compulab.co.il>
7 *
8 * Copied from tosa.c:
9 * Copyright 2005 Wolfson Microelectronics PLC.
10 * Copyright 2005 Openedhand Ltd.
11 *
12 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
13 * Richard Purdie <richard@openedhand.com>
14 *
15 * This program is free software; you can redistribute it and/or modify it
16 * under the terms of the GNU General Public License as published by the
17 * Free Software Foundation; either version 2 of the License, or (at your
18 * option) any later version.
19 *
20 */
21
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/device.h>
25
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/soc.h>
29
30 #include <asm/mach-types.h>
31 #include <mach/audio.h>
32
33 static struct snd_soc_dai_link em_x270_dai[] = {
34 {
35 .name = "AC97",
36 .stream_name = "AC97 HiFi",
37 .cpu_dai_name = "pxa2xx-ac97",
38 .codec_dai_name = "wm9712-hifi",
39 .platform_name = "pxa-pcm-audio",
40 .codec_name = "wm9712-codec",
41 },
42 {
43 .name = "AC97 Aux",
44 .stream_name = "AC97 Aux",
45 .cpu_dai_name = "pxa2xx-ac97-aux",
46 .codec_dai_name = "wm9712-aux",
47 .platform_name = "pxa-pcm-audio",
48 .codec_name = "wm9712-codec",
49 },
50 };
51
52 static struct snd_soc_card em_x270 = {
53 .name = "EM-X270",
54 .owner = THIS_MODULE,
55 .dai_link = em_x270_dai,
56 .num_links = ARRAY_SIZE(em_x270_dai),
57 };
58
59 static struct platform_device *em_x270_snd_device;
60
em_x270_init(void)61 static int __init em_x270_init(void)
62 {
63 int ret;
64
65 if (!(machine_is_em_x270() || machine_is_exeda()
66 || machine_is_cm_x300()))
67 return -ENODEV;
68
69 em_x270_snd_device = platform_device_alloc("soc-audio", -1);
70 if (!em_x270_snd_device)
71 return -ENOMEM;
72
73 platform_set_drvdata(em_x270_snd_device, &em_x270);
74 ret = platform_device_add(em_x270_snd_device);
75
76 if (ret)
77 platform_device_put(em_x270_snd_device);
78
79 return ret;
80 }
81
em_x270_exit(void)82 static void __exit em_x270_exit(void)
83 {
84 platform_device_unregister(em_x270_snd_device);
85 }
86
87 module_init(em_x270_init);
88 module_exit(em_x270_exit);
89
90 /* Module information */
91 MODULE_AUTHOR("Mike Rapoport");
92 MODULE_DESCRIPTION("ALSA SoC EM-X270, eXeda and CM-X300");
93 MODULE_LICENSE("GPL");
94
