ASoc machine driver
ASoC machine driver 将所有的componentdriver联系起来。
struct snd_soc_card {
char *name;
...
int (*probe)(struct platform_device *pdev);
int (*remove)(struct platform_device *pdev);
/* the pre and post PM functions are used to do any PM work before and
* after the codec and DAIs do any PM work. */
int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
int (*resume_pre)(struct platform_device *pdev);
int (*resume_post)(struct platform_device *pdev);
...
/* CPU <--> Codec DAI links */
struct snd_soc_dai_link *dai_link;
int num_links;
...
};
Machine DAI Configuration
Machine DAI配置将CPU DAI和codec结合在一起。 struct snd_soc_dai_link用来设置machine中的每个DAI。
Machine Controls
Machine specific audio mixer controls可以在DAI的init函数总体按键。
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