Eric Lee / smarc-fsl-linux-kernel

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include/sound/pxa2xx-lib.h 1.5 KB
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81f7e3824   Eric Lee   Initial Release, ... 
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  /* SPDX-License-Identifier: GPL-2.0 */
  #ifndef PXA2XX_LIB_H
  #define PXA2XX_LIB_H
  
  #include <linux/platform_device.h>
  #include <sound/ac97_codec.h>
  
  /* PCM */
  
  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 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 */
  
  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