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Linux/include/sound/pxa2xx-lib.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef PXA2XX_LIB_H
  3 #define PXA2XX_LIB_H
  4 
  5 #include <uapi/sound/asound.h>
  6 #include <linux/platform_device.h>
  7 
  8 /* PCM */
  9 struct snd_pcm_substream;
 10 struct snd_pcm_hw_params;
 11 struct snd_pcm;
 12 
 13 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 14                                 struct snd_pcm_hw_params *params);
 15 extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
 16 extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
 17 extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
 18 extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
 19 extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream);
 20 extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream);
 21 extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
 22         struct vm_area_struct *vma);
 23 extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
 24 extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
 25 
 26 /* AC97 */
 27 
 28 extern int pxa2xx_ac97_read(int slot, unsigned short reg);
 29 extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
 30 
 31 extern bool pxa2xx_ac97_try_warm_reset(void);
 32 extern bool pxa2xx_ac97_try_cold_reset(void);
 33 extern void pxa2xx_ac97_finish_reset(void);
 34 
 35 extern int pxa2xx_ac97_hw_suspend(void);
 36 extern int pxa2xx_ac97_hw_resume(void);
 37 
 38 extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
 39 extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
 40 
 41 #endif
 42 

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