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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 
 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 
102 static struct snd_soc_ops db1200_i2s_wm8731_ops = {
103         .startup        = db1200_i2s_startup,
104 };
105 
106 static 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 
118 static 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 
125 static 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         .ops            = &db1200_i2s_wm8731_ops,
133 };
134 
135 static struct snd_soc_card db1300_i2s_machine = {
136         .name           = "DB1300_I2S",
137         .owner          = THIS_MODULE,
138         .dai_link       = &db1300_i2s_dai,
139         .num_links      = 1,
140 };
141 
142 static struct snd_soc_dai_link db1550_i2s_dai = {
143         .name           = "WM8731",
144         .stream_name    = "WM8731 PCM",
145         .codec_dai_name = "wm8731-hifi",
146         .cpu_dai_name   = "au1xpsc_i2s.3",
147         .platform_name  = "au1xpsc-pcm.3",
148         .codec_name     = "wm8731.0-001b",
149         .ops            = &db1200_i2s_wm8731_ops,
150 };
151 
152 static struct snd_soc_card db1550_i2s_machine = {
153         .name           = "DB1550_I2S",
154         .owner          = THIS_MODULE,
155         .dai_link       = &db1550_i2s_dai,
156         .num_links      = 1,
157 };
158 
159 /*-------------------------  COMMON PART  ---------------------------*/
160 
161 static struct snd_soc_card *db1200_cards[] = {
162         &db1200_ac97_machine,
163         &db1200_i2s_machine,
164         &db1300_ac97_machine,
165         &db1300_i2s_machine,
166         &db1550_ac97_machine,
167         &db1550_i2s_machine,
168 };
169 
170 static int db1200_audio_probe(struct platform_device *pdev)
171 {
172         const struct platform_device_id *pid = platform_get_device_id(pdev);
173         struct snd_soc_card *card;
174 
175         card = db1200_cards[pid->driver_data];
176         card->dev = &pdev->dev;
177         return snd_soc_register_card(card);
178 }
179 
180 static int db1200_audio_remove(struct platform_device *pdev)
181 {
182         struct snd_soc_card *card = platform_get_drvdata(pdev);
183         snd_soc_unregister_card(card);
184         return 0;
185 }
186 
187 static struct platform_driver db1200_audio_driver = {
188         .driver = {
189                 .name   = "db1200-ac97",
190                 .pm     = &snd_soc_pm_ops,
191         },
192         .id_table       = db1200_pids,
193         .probe          = db1200_audio_probe,
194         .remove         = db1200_audio_remove,
195 };
196 
197 module_platform_driver(db1200_audio_driver);
198 
199 MODULE_LICENSE("GPL");
200 MODULE_DESCRIPTION("DB1200/DB1300/DB1550 ASoC audio support");
201 MODULE_AUTHOR("Manuel Lauss");
202 

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