Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/sound/soc/au1x/db1200.c

  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         .owner          = THIS_MODULE,
 77         .dai_link       = &db1300_ac97_dai,
 78         .num_links      = 1,
 79 };
 80 
 81 static 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 
 90 static 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         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 95         int ret;
 96 
 97         /* WM8731 has its own 12MHz crystal */
 98         snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
 99                                 12000000, SND_SOC_CLOCK_IN);
100 
101         /* codec is bitclock and lrclk master */
102         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
103                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
104         if (ret < 0)
105                 goto out;
106 
107         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
108                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
109         if (ret < 0)
110                 goto out;
111 
112         ret = 0;
113 out:
114         return ret;
115 }
116 
117 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
118         .startup        = db1200_i2s_startup,
119 };
120 
121 static struct snd_soc_dai_link db1200_i2s_dai = {
122         .name           = "WM8731",
123         .stream_name    = "WM8731 PCM",
124         .codec_dai_name = "wm8731-hifi",
125         .cpu_dai_name   = "au1xpsc_i2s.1",
126         .platform_name  = "au1xpsc-pcm.1",
127         .codec_name     = "wm8731.0-001b",
128         .ops            = &db1200_i2s_wm8731_ops,
129 };
130 
131 static struct snd_soc_card db1200_i2s_machine = {
132         .name           = "DB1200_I2S",
133         .owner          = THIS_MODULE,
134         .dai_link       = &db1200_i2s_dai,
135         .num_links      = 1,
136 };
137 
138 static struct snd_soc_dai_link db1300_i2s_dai = {
139         .name           = "WM8731",
140         .stream_name    = "WM8731 PCM",
141         .codec_dai_name = "wm8731-hifi",
142         .cpu_dai_name   = "au1xpsc_i2s.2",
143         .platform_name  = "au1xpsc-pcm.2",
144         .codec_name     = "wm8731.0-001b",
145         .ops            = &db1200_i2s_wm8731_ops,
146 };
147 
148 static struct snd_soc_card db1300_i2s_machine = {
149         .name           = "DB1300_I2S",
150         .owner          = THIS_MODULE,
151         .dai_link       = &db1300_i2s_dai,
152         .num_links      = 1,
153 };
154 
155 static struct snd_soc_dai_link db1550_i2s_dai = {
156         .name           = "WM8731",
157         .stream_name    = "WM8731 PCM",
158         .codec_dai_name = "wm8731-hifi",
159         .cpu_dai_name   = "au1xpsc_i2s.3",
160         .platform_name  = "au1xpsc-pcm.3",
161         .codec_name     = "wm8731.0-001b",
162         .ops            = &db1200_i2s_wm8731_ops,
163 };
164 
165 static struct snd_soc_card db1550_i2s_machine = {
166         .name           = "DB1550_I2S",
167         .owner          = THIS_MODULE,
168         .dai_link       = &db1550_i2s_dai,
169         .num_links      = 1,
170 };
171 
172 /*-------------------------  COMMON PART  ---------------------------*/
173 
174 static struct snd_soc_card *db1200_cards[] = {
175         &db1200_ac97_machine,
176         &db1200_i2s_machine,
177         &db1300_ac97_machine,
178         &db1300_i2s_machine,
179         &db1550_ac97_machine,
180         &db1550_i2s_machine,
181 };
182 
183 static int db1200_audio_probe(struct platform_device *pdev)
184 {
185         const struct platform_device_id *pid = platform_get_device_id(pdev);
186         struct snd_soc_card *card;
187 
188         card = db1200_cards[pid->driver_data];
189         card->dev = &pdev->dev;
190         return snd_soc_register_card(card);
191 }
192 
193 static int db1200_audio_remove(struct platform_device *pdev)
194 {
195         struct snd_soc_card *card = platform_get_drvdata(pdev);
196         snd_soc_unregister_card(card);
197         return 0;
198 }
199 
200 static struct platform_driver db1200_audio_driver = {
201         .driver = {
202                 .name   = "db1200-ac97",
203                 .owner  = THIS_MODULE,
204                 .pm     = &snd_soc_pm_ops,
205         },
206         .id_table       = db1200_pids,
207         .probe          = db1200_audio_probe,
208         .remove         = db1200_audio_remove,
209 };
210 
211 module_platform_driver(db1200_audio_driver);
212 
213 MODULE_LICENSE("GPL");
214 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
215 MODULE_AUTHOR("Manuel Lauss");
216 

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