/* SoC audio ops */
struct snd_soc_ops {
- int (*startup)(snd_pcm_substream_t *);
- void (*shutdown)(snd_pcm_substream_t *);
- int (*hw_params)(snd_pcm_substream_t *, snd_pcm_hw_params_t *);
- int (*hw_free)(snd_pcm_substream_t *);
- int (*prepare)(snd_pcm_substream_t *);
+ int (*startup)(struct snd_pcm_substream *);
+ void (*shutdown)(struct snd_pcm_substream *);
+ int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
+ int (*hw_free)(struct snd_pcm_substream *);
+ int (*prepare)(struct snd_pcm_substream *);
};
Please refer to the alsa driver PCM documentation for details.
/* SoC audio ops */
struct snd_soc_ops {
- int (*startup)(snd_pcm_substream_t *);
- void (*shutdown)(snd_pcm_substream_t *);
- int (*hw_params)(snd_pcm_substream_t *, snd_pcm_hw_params_t *);
- int (*hw_free)(snd_pcm_substream_t *);
- int (*prepare)(snd_pcm_substream_t *);
- int (*trigger)(snd_pcm_substream_t *, int);
+ int (*startup)(struct snd_pcm_substream *);
+ void (*shutdown)(struct snd_pcm_substream *);
+ int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
+ int (*hw_free)(struct snd_pcm_substream *);
+ int (*prepare)(struct snd_pcm_substream *);
+ int (*trigger)(struct snd_pcm_substream *, int);
};
The platform driver exports it's DMA functionailty via struct snd_soc_platform:-
int (*resume)(struct platform_device *pdev, struct snd_soc_cpu_dai *cpu_dai);
/* pcm creation and destruction */
- int (*pcm_new)(snd_card_t *, struct snd_soc_codec_dai *, snd_pcm_t *);
- void (*pcm_free)(snd_pcm_t *);
+ int (*pcm_new)(struct snd_card *, struct snd_soc_codec_dai *, struct snd_pcm *);
+ void (*pcm_free)(struct snd_pcm *);
/* platform stream ops */
- snd_pcm_ops_t *pcm_ops;
+ struct snd_pcm_ops *pcm_ops;
};
Please refer to the alsa driver documentation for details of audio DMA.