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
24static struct snd_soc_card imx_phycore;
25
26static struct snd_soc_ops imx_phycore_hifi_ops = {
27};
28
29static 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
41static 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
48static struct platform_device *imx_phycore_snd_ac97_device;
49static struct platform_device *imx_phycore_snd_device;
50
51static 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
105fail3:
106	platform_device_put(imx_phycore_snd_device);
107fail2:
108	platform_device_del(imx_phycore_snd_ac97_device);
109fail1:
110	platform_device_put(imx_phycore_snd_ac97_device);
111	return ret;
112}
113
114static 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
120late_initcall(imx_phycore_init);
121module_exit(imx_phycore_exit);
122
123MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
124MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
125MODULE_LICENSE("GPL");
126