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Diffstat (limited to 'sound/soc/codecs/ac97.c')
-rw-r--r--sound/soc/codecs/ac97.c125
1 files changed, 51 insertions, 74 deletions
diff --git a/sound/soc/codecs/ac97.c b/sound/soc/codecs/ac97.c
index 1f5e57a4bb7a..3c087936aa57 100644
--- a/sound/soc/codecs/ac97.c
+++ b/sound/soc/codecs/ac97.c
@@ -21,17 +21,13 @@
21#include <sound/ac97_codec.h> 21#include <sound/ac97_codec.h>
22#include <sound/initval.h> 22#include <sound/initval.h>
23#include <sound/soc.h> 23#include <sound/soc.h>
24#include "ac97.h"
25
26#define AC97_VERSION "0.6"
27 24
28static int ac97_prepare(struct snd_pcm_substream *substream, 25static int ac97_prepare(struct snd_pcm_substream *substream,
29 struct snd_soc_dai *dai) 26 struct snd_soc_dai *dai)
30{ 27{
31 struct snd_pcm_runtime *runtime = substream->runtime; 28 struct snd_pcm_runtime *runtime = substream->runtime;
32 struct snd_soc_pcm_runtime *rtd = substream->private_data; 29 struct snd_soc_pcm_runtime *rtd = substream->private_data;
33 struct snd_soc_device *socdev = rtd->socdev; 30 struct snd_soc_codec *codec = rtd->codec;
34 struct snd_soc_codec *codec = socdev->card->codec;
35 31
36 int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? 32 int reg = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
37 AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE; 33 AC97_PCM_FRONT_DAC_RATE : AC97_PCM_LR_ADC_RATE;
@@ -46,8 +42,8 @@ static struct snd_soc_dai_ops ac97_dai_ops = {
46 .prepare = ac97_prepare, 42 .prepare = ac97_prepare,
47}; 43};
48 44
49struct snd_soc_dai ac97_dai = { 45static struct snd_soc_dai_driver ac97_dai = {
50 .name = "AC97 HiFi", 46 .name = "ac97-hifi",
51 .ac97_control = 1, 47 .ac97_control = 1,
52 .playback = { 48 .playback = {
53 .stream_name = "AC97 Playback", 49 .stream_name = "AC97 Playback",
@@ -63,7 +59,6 @@ struct snd_soc_dai ac97_dai = {
63 .formats = SND_SOC_STD_AC97_FMTS,}, 59 .formats = SND_SOC_STD_AC97_FMTS,},
64 .ops = &ac97_dai_ops, 60 .ops = &ac97_dai_ops,
65}; 61};
66EXPORT_SYMBOL_GPL(ac97_dai);
67 62
68static unsigned int ac97_read(struct snd_soc_codec *codec, 63static unsigned int ac97_read(struct snd_soc_codec *codec,
69 unsigned int reg) 64 unsigned int reg)
@@ -78,95 +73,41 @@ static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
78 return 0; 73 return 0;
79} 74}
80 75
81static int ac97_soc_probe(struct platform_device *pdev) 76static int ac97_soc_probe(struct snd_soc_codec *codec)
82{ 77{
83 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
84 struct snd_soc_card *card = socdev->card;
85 struct snd_soc_codec *codec;
86 struct snd_ac97_bus *ac97_bus; 78 struct snd_ac97_bus *ac97_bus;
87 struct snd_ac97_template ac97_template; 79 struct snd_ac97_template ac97_template;
88 int i; 80 int ret;
89 int ret = 0;
90
91 printk(KERN_INFO "AC97 SoC Audio Codec %s\n", AC97_VERSION);
92
93 socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
94 if (!socdev->card->codec)
95 return -ENOMEM;
96 codec = socdev->card->codec;
97 mutex_init(&codec->mutex);
98
99 codec->name = "AC97";
100 codec->owner = THIS_MODULE;
101 codec->dai = &ac97_dai;
102 codec->num_dai = 1;
103 codec->write = ac97_write;
104 codec->read = ac97_read;
105 INIT_LIST_HEAD(&codec->dapm_widgets);
106 INIT_LIST_HEAD(&codec->dapm_paths);
107
108 /* register pcms */
109 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
110 if (ret < 0)
111 goto err;
112 81
113 /* add codec as bus device for standard ac97 */ 82 /* add codec as bus device for standard ac97 */
114 ret = snd_ac97_bus(codec->card, 0, &soc_ac97_ops, NULL, &ac97_bus); 83 ret = snd_ac97_bus(codec->card->snd_card, 0, &soc_ac97_ops, NULL, &ac97_bus);
115 if (ret < 0) 84 if (ret < 0)
116 goto bus_err; 85 return ret;
117 86
118 memset(&ac97_template, 0, sizeof(struct snd_ac97_template)); 87 memset(&ac97_template, 0, sizeof(struct snd_ac97_template));
119 ret = snd_ac97_mixer(ac97_bus, &ac97_template, &codec->ac97); 88 ret = snd_ac97_mixer(ac97_bus, &ac97_template, &codec->ac97);
120 if (ret < 0) 89 if (ret < 0)
121 goto bus_err; 90 return ret;
122
123 for (i = 0; i < card->num_links; i++) {
124 if (card->dai_link[i].codec_dai->ac97_control) {
125 snd_ac97_dev_add_pdata(codec->ac97,
126 card->dai_link[i].cpu_dai->ac97_pdata);
127 }
128 }
129 91
130 return 0; 92 return 0;
131
132bus_err:
133 snd_soc_free_pcms(socdev);
134
135err:
136 kfree(socdev->card->codec);
137 socdev->card->codec = NULL;
138 return ret;
139} 93}
140 94
141static int ac97_soc_remove(struct platform_device *pdev) 95static int ac97_soc_remove(struct snd_soc_codec *codec)
142{ 96{
143 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
144 struct snd_soc_codec *codec = socdev->card->codec;
145
146 if (!codec)
147 return 0;
148
149 snd_soc_free_pcms(socdev);
150 kfree(socdev->card->codec);
151
152 return 0; 97 return 0;
153} 98}
154 99
155#ifdef CONFIG_PM 100#ifdef CONFIG_PM
156static int ac97_soc_suspend(struct platform_device *pdev, pm_message_t msg) 101static int ac97_soc_suspend(struct snd_soc_codec *codec, pm_message_t msg)
157{ 102{
158 struct snd_soc_device *socdev = platform_get_drvdata(pdev); 103 snd_ac97_suspend(codec->ac97);
159
160 snd_ac97_suspend(socdev->card->codec->ac97);
161 104
162 return 0; 105 return 0;
163} 106}
164 107
165static int ac97_soc_resume(struct platform_device *pdev) 108static int ac97_soc_resume(struct snd_soc_codec *codec)
166{ 109{
167 struct snd_soc_device *socdev = platform_get_drvdata(pdev); 110 snd_ac97_resume(codec->ac97);
168
169 snd_ac97_resume(socdev->card->codec->ac97);
170 111
171 return 0; 112 return 0;
172} 113}
@@ -175,14 +116,50 @@ static int ac97_soc_resume(struct platform_device *pdev)
175#define ac97_soc_resume NULL 116#define ac97_soc_resume NULL
176#endif 117#endif
177 118
178struct snd_soc_codec_device soc_codec_dev_ac97 = { 119static struct snd_soc_codec_driver soc_codec_dev_ac97 = {
120 .write = ac97_write,
121 .read = ac97_read,
179 .probe = ac97_soc_probe, 122 .probe = ac97_soc_probe,
180 .remove = ac97_soc_remove, 123 .remove = ac97_soc_remove,
181 .suspend = ac97_soc_suspend, 124 .suspend = ac97_soc_suspend,
182 .resume = ac97_soc_resume, 125 .resume = ac97_soc_resume,
183}; 126};
184EXPORT_SYMBOL_GPL(soc_codec_dev_ac97); 127
128static __devinit int ac97_probe(struct platform_device *pdev)
129{
130 return snd_soc_register_codec(&pdev->dev,
131 &soc_codec_dev_ac97, &ac97_dai, 1);
132}
133
134static int __devexit ac97_remove(struct platform_device *pdev)
135{
136 snd_soc_unregister_codec(&pdev->dev);
137 return 0;
138}
139
140static struct platform_driver ac97_codec_driver = {
141 .driver = {
142 .name = "ac97-codec",
143 .owner = THIS_MODULE,
144 },
145
146 .probe = ac97_probe,
147 .remove = __devexit_p(ac97_remove),
148};
149
150static int __init ac97_init(void)
151{
152 return platform_driver_register(&ac97_codec_driver);
153}
154module_init(ac97_init);
155
156static void __exit ac97_exit(void)
157{
158 platform_driver_unregister(&ac97_codec_driver);
159}
160module_exit(ac97_exit);
185 161
186MODULE_DESCRIPTION("Soc Generic AC97 driver"); 162MODULE_DESCRIPTION("Soc Generic AC97 driver");
187MODULE_AUTHOR("Liam Girdwood"); 163MODULE_AUTHOR("Liam Girdwood");
188MODULE_LICENSE("GPL"); 164MODULE_LICENSE("GPL");
165MODULE_ALIAS("platform:ac97-codec");