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
24 static 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
49 static 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
58 static 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
65 static 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
74 static struct snd_soc_card db1300_ac97_machine = {
75 .name = "DB1300_AC97",
76 .dai_link = &db1300_ac97_dai,
77 .num_links = 1,
78 };
79
80 static struct snd_soc_card db1550_ac97_machine = {
81 .name = "DB1550_AC97",
82 .dai_link = &db1200_ac97_dai,
83 .num_links = 1,
84 };
85
86 /*------------------------- I2S PART ---------------------------*/
87
db1200_i2s_startup(struct snd_pcm_substream * substream)88 static int db1200_i2s_startup(struct snd_pcm_substream *substream)
89 {
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;
93 int ret;
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 /* 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);
102 if (ret < 0)
103 goto out;
104
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);
107 if (ret < 0)
108 goto out;
109
110 ret = 0;
111 out:
112 return ret;
113 }
114
115 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
116 .startup = db1200_i2s_startup,
117 };
118
119 static struct snd_soc_dai_link db1200_i2s_dai = {
120 .name = "WM8731",
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,
127 };
128
129 static struct snd_soc_card db1200_i2s_machine = {
130 .name = "DB1200_I2S",
131 .owner = THIS_MODULE,
132 .dai_link = &db1200_i2s_dai,
133 .num_links = 1,
134 };
135
136 static struct snd_soc_dai_link db1300_i2s_dai = {
137 .name = "WM8731",
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,
144 };
145
146 static struct snd_soc_card db1300_i2s_machine = {
147 .name = "DB1300_I2S",
148 .dai_link = &db1300_i2s_dai,
149 .num_links = 1,
150 };
151
152 static struct snd_soc_dai_link db1550_i2s_dai = {
153 .name = "WM8731",
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,
160 };
161
162 static struct snd_soc_card db1550_i2s_machine = {
163 .name = "DB1550_I2S",
164 .dai_link = &db1550_i2s_dai,
165 .num_links = 1,
166 };
167
168 /*------------------------- COMMON PART ---------------------------*/
169
170 static struct snd_soc_card *db1200_cards[] __devinitdata = {
171 &db1200_ac97_machine,
172 &db1200_i2s_machine,
173 &db1300_ac97_machine,
174 &db1300_i2s_machine,
175 &db1550_ac97_machine,
176 &db1550_i2s_machine,
177 };
178
db1200_audio_probe(struct platform_device * pdev)179 static int __devinit db1200_audio_probe(struct platform_device *pdev)
180 {
181 const struct platform_device_id *pid = platform_get_device_id(pdev);
182 struct snd_soc_card *card;
183
184 card = db1200_cards[pid->driver_data];
185 card->dev = &pdev->dev;
186 return snd_soc_register_card(card);
187 }
188
db1200_audio_remove(struct platform_device * pdev)189 static int __devexit db1200_audio_remove(struct platform_device *pdev)
190 {
191 struct snd_soc_card *card = platform_get_drvdata(pdev);
192 snd_soc_unregister_card(card);
193 return 0;
194 }
195
196 static struct platform_driver db1200_audio_driver = {
197 .driver = {
198 .name = "db1200-ac97",
199 .owner = THIS_MODULE,
200 .pm = &snd_soc_pm_ops,
201 },
202 .id_table = db1200_pids,
203 .probe = db1200_audio_probe,
204 .remove = __devexit_p(db1200_audio_remove),
205 };
206
207 module_platform_driver(db1200_audio_driver);
208
209 MODULE_LICENSE("GPL");
210 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
211 MODULE_AUTHOR("Manuel Lauss");
212