1/*
2 * DB1200/DB1300/DB1550 ASoC audio fabric support code.
3 *
4 * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com>
5 *
6 */
7
8#include <linux/module.h>
9#include <linux/moduleparam.h>
10#include <linux/timer.h>
11#include <linux/interrupt.h>
12#include <linux/platform_device.h>
13#include <sound/core.h>
14#include <sound/pcm.h>
15#include <sound/soc.h>
16#include <asm/mach-au1x00/au1000.h>
17#include <asm/mach-au1x00/au1xxx_psc.h>
18#include <asm/mach-au1x00/au1xxx_dbdma.h>
19#include <asm/mach-db1x00/bcsr.h>
20
21#include "../codecs/wm8731.h"
22#include "psc.h"
23
24static const struct platform_device_id db1200_pids[] = {
25	{
26		.name		= "db1200-ac97",
27		.driver_data	= 0,
28	}, {
29		.name		= "db1200-i2s",
30		.driver_data	= 1,
31	}, {
32		.name		= "db1300-ac97",
33		.driver_data	= 2,
34	}, {
35		.name		= "db1300-i2s",
36		.driver_data	= 3,
37	}, {
38		.name		= "db1550-ac97",
39		.driver_data	= 4,
40	}, {
41		.name		= "db1550-i2s",
42		.driver_data	= 5,
43	},
44	{},
45};
46
47/*-------------------------  AC97 PART  ---------------------------*/
48
49static struct snd_soc_dai_link db1200_ac97_dai = {
50	.name		= "AC97",
51	.stream_name	= "AC97 HiFi",
52	.codec_dai_name	= "ac97-hifi",
53	.cpu_dai_name	= "au1xpsc_ac97.1",
54	.platform_name	= "au1xpsc-pcm.1",
55	.codec_name	= "ac97-codec.1",
56};
57
58static struct snd_soc_card db1200_ac97_machine = {
59	.name		= "DB1200_AC97",
60	.owner		= THIS_MODULE,
61	.dai_link	= &db1200_ac97_dai,
62	.num_links	= 1,
63};
64
65static struct snd_soc_dai_link db1300_ac97_dai = {
66	.name		= "AC97",
67	.stream_name	= "AC97 HiFi",
68	.codec_dai_name	= "wm9712-hifi",
69	.cpu_dai_name	= "au1xpsc_ac97.1",
70	.platform_name	= "au1xpsc-pcm.1",
71	.codec_name	= "wm9712-codec.1",
72};
73
74static struct snd_soc_card db1300_ac97_machine = {
75	.name		= "DB1300_AC97",
76	.owner		= THIS_MODULE,
77	.dai_link	= &db1300_ac97_dai,
78	.num_links	= 1,
79};
80
81static struct snd_soc_card db1550_ac97_machine = {
82	.name		= "DB1550_AC97",
83	.owner		= THIS_MODULE,
84	.dai_link	= &db1200_ac97_dai,
85	.num_links	= 1,
86};
87
88/*-------------------------  I2S PART  ---------------------------*/
89
90static int db1200_i2s_startup(struct snd_pcm_substream *substream)
91{
92	struct snd_soc_pcm_runtime *rtd = substream->private_data;
93	struct snd_soc_dai *codec_dai = rtd->codec_dai;
94
95	/* WM8731 has its own 12MHz crystal */
96	snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
97				12000000, SND_SOC_CLOCK_IN);
98
99	return 0;
100}
101
102static struct snd_soc_ops db1200_i2s_wm8731_ops = {
103	.startup	= db1200_i2s_startup,
104};
105
106static struct snd_soc_dai_link db1200_i2s_dai = {
107	.name		= "WM8731",
108	.stream_name	= "WM8731 PCM",
109	.codec_dai_name	= "wm8731-hifi",
110	.cpu_dai_name	= "au1xpsc_i2s.1",
111	.platform_name	= "au1xpsc-pcm.1",
112	.codec_name	= "wm8731.0-001b",
113	.dai_fmt	= SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF |
114			  SND_SOC_DAIFMT_CBM_CFM,
115	.ops		= &db1200_i2s_wm8731_ops,
116};
117
118static struct snd_soc_card db1200_i2s_machine = {
119	.name		= "DB1200_I2S",
120	.owner		= THIS_MODULE,
121	.dai_link	= &db1200_i2s_dai,
122	.num_links	= 1,
123};
124
125static struct snd_soc_dai_link db1300_i2s_dai = {
126	.name		= "WM8731",
127	.stream_name	= "WM8731 PCM",
128	.codec_dai_name	= "wm8731-hifi",
129	.cpu_dai_name	= "au1xpsc_i2s.2",
130	.platform_name	= "au1xpsc-pcm.2",
131	.codec_name	= "wm8731.0-001b",
132	.dai_fmt	= SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF |
133			  SND_SOC_DAIFMT_CBM_CFM,
134	.ops		= &db1200_i2s_wm8731_ops,
135};
136
137static struct snd_soc_card db1300_i2s_machine = {
138	.name		= "DB1300_I2S",
139	.owner		= THIS_MODULE,
140	.dai_link	= &db1300_i2s_dai,
141	.num_links	= 1,
142};
143
144static struct snd_soc_dai_link db1550_i2s_dai = {
145	.name		= "WM8731",
146	.stream_name	= "WM8731 PCM",
147	.codec_dai_name	= "wm8731-hifi",
148	.cpu_dai_name	= "au1xpsc_i2s.3",
149	.platform_name	= "au1xpsc-pcm.3",
150	.codec_name	= "wm8731.0-001b",
151	.dai_fmt	= SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF |
152			  SND_SOC_DAIFMT_CBM_CFM,
153	.ops		= &db1200_i2s_wm8731_ops,
154};
155
156static struct snd_soc_card db1550_i2s_machine = {
157	.name		= "DB1550_I2S",
158	.owner		= THIS_MODULE,
159	.dai_link	= &db1550_i2s_dai,
160	.num_links	= 1,
161};
162
163/*-------------------------  COMMON PART  ---------------------------*/
164
165static struct snd_soc_card *db1200_cards[] = {
166	&db1200_ac97_machine,
167	&db1200_i2s_machine,
168	&db1300_ac97_machine,
169	&db1300_i2s_machine,
170	&db1550_ac97_machine,
171	&db1550_i2s_machine,
172};
173
174static int db1200_audio_probe(struct platform_device *pdev)
175{
176	const struct platform_device_id *pid = platform_get_device_id(pdev);
177	struct snd_soc_card *card;
178
179	card = db1200_cards[pid->driver_data];
180	card->dev = &pdev->dev;
181	return devm_snd_soc_register_card(&pdev->dev, card);
182}
183
184static struct platform_driver db1200_audio_driver = {
185	.driver	= {
186		.name	= "db1200-ac97",
187		.pm	= &snd_soc_pm_ops,
188	},
189	.id_table	= db1200_pids,
190	.probe		= db1200_audio_probe,
191};
192
193module_platform_driver(db1200_audio_driver);
194
195MODULE_LICENSE("GPL");
196MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
197MODULE_AUTHOR("Manuel Lauss");
198