1 /*
2 * Efika driver for the PSC of the Freescale MPC52xx
3 * configured as AC97 interface
4 *
5 * Copyright 2008 Jon Smirl, Digispeaker
6 * Author: Jon Smirl <jonsmirl@gmail.com>
7 *
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of any
10 * kind, whether express or implied.
11 */
12
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <linux/interrupt.h>
16 #include <linux/device.h>
17 #include <linux/delay.h>
18 #include <linux/of.h>
19 #include <linux/platform_device.h>
20 #include <linux/dma-mapping.h>
21
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/initval.h>
26 #include <sound/soc.h>
27
28 #include "mpc5200_dma.h"
29
30 #define DRV_NAME "efika-audio-fabric"
31
32 SND_SOC_DAILINK_DEFS(analog,
33 DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
34 DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
35 "stac9766-hifi-analog")),
36 DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
37
38 SND_SOC_DAILINK_DEFS(iec958,
39 DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
40 DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
41 "stac9766-hifi-IEC958")),
42 DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
43
44 static struct snd_soc_dai_link efika_fabric_dai[] = {
45 {
46 .name = "AC97",
47 .stream_name = "AC97 Analog",
48 SND_SOC_DAILINK_REG(analog),
49 },
50 {
51 .name = "AC97",
52 .stream_name = "AC97 IEC958",
53 SND_SOC_DAILINK_REG(iec958),
54 },
55 };
56
57 static struct snd_soc_card card = {
58 .name = "Efika",
59 .owner = THIS_MODULE,
60 .dai_link = efika_fabric_dai,
61 .num_links = ARRAY_SIZE(efika_fabric_dai),
62 };
63
64 static __init int efika_fabric_init(void)
65 {
66 struct platform_device *pdev;
67 int rc;
68
69 if (!of_machine_is_compatible("bplan,efika"))
70 return -ENODEV;
71
72 pdev = platform_device_alloc("soc-audio", 1);
73 if (!pdev) {
74 pr_err("efika_fabric_init: platform_device_alloc() failed\n");
75 return -ENODEV;
76 }
77
78 platform_set_drvdata(pdev, &card);
79
80 rc = platform_device_add(pdev);
81 if (rc) {
82 pr_err("efika_fabric_init: platform_device_add() failed\n");
83 platform_device_put(pdev);
84 return -ENODEV;
85 }
86 return 0;
87 }
88
89 module_init(efika_fabric_init);
90
91
92 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
93 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
94 MODULE_LICENSE("GPL");
95
96
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