2 * DB1200/DB1300/DB1550 ASoC audio fabric support code.
4 * (c) 2008-2011 Manuel Lauss <manuel.lauss@googlemail.com>
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>
21 #include "../codecs/wm8731.h"
24 static struct platform_device_id db1200_pids[] = {
26 .name = "db1200-ac97",
32 .name = "db1300-ac97",
38 .name = "db1550-ac97",
47 /*------------------------- AC97 PART ---------------------------*/
49 static struct snd_soc_dai_link db1200_ac97_dai = {
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",
58 static struct snd_soc_card db1200_ac97_machine = {
59 .name = "DB1200_AC97",
61 .dai_link = &db1200_ac97_dai,
65 static struct snd_soc_dai_link db1300_ac97_dai = {
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",
74 static struct snd_soc_card db1300_ac97_machine = {
75 .name = "DB1300_AC97",
76 .dai_link = &db1300_ac97_dai,
80 static struct snd_soc_card db1550_ac97_machine = {
81 .name = "DB1550_AC97",
82 .dai_link = &db1200_ac97_dai,
86 /*------------------------- I2S PART ---------------------------*/
88 static int db1200_i2s_startup(struct snd_pcm_substream *substream)
90 struct snd_soc_pcm_runtime *rtd = substream->private_data;
91 struct snd_soc_dai *codec_dai = rtd->codec_dai;
92 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
95 /* WM8731 has its own 12MHz crystal */
96 snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
97 12000000, SND_SOC_CLOCK_IN);
99 /* codec is bitclock and lrclk master */
100 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
101 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
105 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
106 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
115 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
116 .startup = db1200_i2s_startup,
119 static struct snd_soc_dai_link db1200_i2s_dai = {
121 .stream_name = "WM8731 PCM",
122 .codec_dai_name = "wm8731-hifi",
123 .cpu_dai_name = "au1xpsc_i2s.1",
124 .platform_name = "au1xpsc-pcm.1",
125 .codec_name = "wm8731.0-001b",
126 .ops = &db1200_i2s_wm8731_ops,
129 static struct snd_soc_card db1200_i2s_machine = {
130 .name = "DB1200_I2S",
131 .owner = THIS_MODULE,
132 .dai_link = &db1200_i2s_dai,
136 static struct snd_soc_dai_link db1300_i2s_dai = {
138 .stream_name = "WM8731 PCM",
139 .codec_dai_name = "wm8731-hifi",
140 .cpu_dai_name = "au1xpsc_i2s.2",
141 .platform_name = "au1xpsc-pcm.2",
142 .codec_name = "wm8731.0-001b",
143 .ops = &db1200_i2s_wm8731_ops,
146 static struct snd_soc_card db1300_i2s_machine = {
147 .name = "DB1300_I2S",
148 .dai_link = &db1300_i2s_dai,
152 static struct snd_soc_dai_link db1550_i2s_dai = {
154 .stream_name = "WM8731 PCM",
155 .codec_dai_name = "wm8731-hifi",
156 .cpu_dai_name = "au1xpsc_i2s.3",
157 .platform_name = "au1xpsc-pcm.3",
158 .codec_name = "wm8731.0-001b",
159 .ops = &db1200_i2s_wm8731_ops,
162 static struct snd_soc_card db1550_i2s_machine = {
163 .name = "DB1550_I2S",
164 .dai_link = &db1550_i2s_dai,
168 /*------------------------- COMMON PART ---------------------------*/
170 static struct snd_soc_card *db1200_cards[] = {
171 &db1200_ac97_machine,
173 &db1300_ac97_machine,
175 &db1550_ac97_machine,
179 static int db1200_audio_probe(struct platform_device *pdev)
181 const struct platform_device_id *pid = platform_get_device_id(pdev);
182 struct snd_soc_card *card;
184 card = db1200_cards[pid->driver_data];
185 card->dev = &pdev->dev;
186 return snd_soc_register_card(card);
189 static int db1200_audio_remove(struct platform_device *pdev)
191 struct snd_soc_card *card = platform_get_drvdata(pdev);
192 snd_soc_unregister_card(card);
196 static struct platform_driver db1200_audio_driver = {
198 .name = "db1200-ac97",
199 .owner = THIS_MODULE,
200 .pm = &snd_soc_pm_ops,
202 .id_table = db1200_pids,
203 .probe = db1200_audio_probe,
204 .remove = db1200_audio_remove,
207 module_platform_driver(db1200_audio_driver);
209 MODULE_LICENSE("GPL");
210 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
211 MODULE_AUTHOR("Manuel Lauss");