1 /*
2 * phycore-ac97.c -- SoC audio for imx_phycore in AC97 mode
3 *
4 * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 */
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/device.h>
16 #include <linux/i2c.h>
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/soc.h>
20 #include <asm/mach-types.h>
21
22 #include "imx-audmux.h"
23
24 static struct snd_soc_card imx_phycore;
25
26 static const struct snd_soc_ops imx_phycore_hifi_ops = {
27 };
28
29 static struct snd_soc_dai_link imx_phycore_dai_ac97[] = {
30 {
31 .name = "HiFi",
32 .stream_name = "HiFi",
33 .codec_dai_name = "wm9712-hifi",
34 .codec_name = "wm9712-codec",
35 .cpu_dai_name = "imx-ssi.0",
36 .platform_name = "imx-ssi.0",
37 .ops = &imx_phycore_hifi_ops,
38 },
39 };
40
41 static struct snd_soc_card imx_phycore = {
42 .name = "PhyCORE-ac97-audio",
43 .owner = THIS_MODULE,
44 .dai_link = imx_phycore_dai_ac97,
45 .num_links = ARRAY_SIZE(imx_phycore_dai_ac97),
46 };
47
48 static struct platform_device *imx_phycore_snd_ac97_device;
49 static struct platform_device *imx_phycore_snd_device;
50
imx_phycore_init(void)51 static int __init imx_phycore_init(void)
52 {
53 int ret;
54
55 if (machine_is_pca100()) {
56 imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
57 IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
58 IMX_AUDMUX_V1_PCR_TFCSEL(3) |
59 IMX_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
60 IMX_AUDMUX_V1_PCR_RXDSEL(3));
61 imx_audmux_v1_configure_port(3,
62 IMX_AUDMUX_V1_PCR_SYN | /* 4wire mode */
63 IMX_AUDMUX_V1_PCR_TFCSEL(0) |
64 IMX_AUDMUX_V1_PCR_TFSDIR |
65 IMX_AUDMUX_V1_PCR_RXDSEL(0));
66 } else if (machine_is_pcm043()) {
67 imx_audmux_v2_configure_port(3,
68 IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
69 IMX_AUDMUX_V2_PTCR_TFSEL(0) |
70 IMX_AUDMUX_V2_PTCR_TFSDIR,
71 IMX_AUDMUX_V2_PDCR_RXDSEL(0));
72 imx_audmux_v2_configure_port(0,
73 IMX_AUDMUX_V2_PTCR_SYN | /* 4wire mode */
74 IMX_AUDMUX_V2_PTCR_TCSEL(3) |
75 IMX_AUDMUX_V2_PTCR_TCLKDIR, /* clock is output */
76 IMX_AUDMUX_V2_PDCR_RXDSEL(3));
77 } else {
78 /* return happy. We might run on a totally different machine */
79 return 0;
80 }
81
82 imx_phycore_snd_ac97_device = platform_device_alloc("soc-audio", -1);
83 if (!imx_phycore_snd_ac97_device)
84 return -ENOMEM;
85
86 platform_set_drvdata(imx_phycore_snd_ac97_device, &imx_phycore);
87 ret = platform_device_add(imx_phycore_snd_ac97_device);
88 if (ret)
89 goto fail1;
90
91 imx_phycore_snd_device = platform_device_alloc("wm9712-codec", -1);
92 if (!imx_phycore_snd_device) {
93 ret = -ENOMEM;
94 goto fail2;
95 }
96 ret = platform_device_add(imx_phycore_snd_device);
97
98 if (ret) {
99 printk(KERN_ERR "ASoC: Platform device allocation failed\n");
100 goto fail3;
101 }
102
103 return 0;
104
105 fail3:
106 platform_device_put(imx_phycore_snd_device);
107 fail2:
108 platform_device_del(imx_phycore_snd_ac97_device);
109 fail1:
110 platform_device_put(imx_phycore_snd_ac97_device);
111 return ret;
112 }
113
imx_phycore_exit(void)114 static void __exit imx_phycore_exit(void)
115 {
116 platform_device_unregister(imx_phycore_snd_device);
117 platform_device_unregister(imx_phycore_snd_ac97_device);
118 }
119
120 late_initcall(imx_phycore_init);
121 module_exit(imx_phycore_exit);
122
123 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
124 MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
125 MODULE_LICENSE("GPL");
126
