Eric Lee / smarc-ti-linux-kernel

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include/sound/pxa2xx-lib.h 1.74 KB
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9c6363422   Dmitry Eremin-Solenikov   ALSA: Separate co... 
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  #ifndef PXA2XX_LIB_H
  #define PXA2XX_LIB_H
  
  #include <linux/platform_device.h>
  #include <sound/ac97_codec.h>
a6d773176   Dmitry Eremin-Solenikov   ALSA: Separate co... 
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  /* PCM */
  
  struct pxa2xx_pcm_dma_params {
  	char *name;			/* stream identifier */
  	u32 dcmd;			/* DMA descriptor dcmd field */
  	volatile u32 *drcmr;		/* the DMA request channel to use */
  	u32 dev_addr;			/* device physical address for DMA */
  };
  
  extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
  				struct snd_pcm_hw_params *params);
  extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
  extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
  extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
  extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
  extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id);
  extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream);
  extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream);
  extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
  	struct vm_area_struct *vma);
  extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
  extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
  
  /* AC97 */
9c6363422   Dmitry Eremin-Solenikov   ALSA: Separate co... 
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  extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
  extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
  
  extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
  extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
  extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
  
  extern int pxa2xx_ac97_hw_suspend(void);
  extern int pxa2xx_ac97_hw_resume(void);
  
  extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
  extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
  
  #endif