include/sound/pxa2xx-lib.h

   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_soc_pcm_runtime;
  12 struct snd_pcm;
  13
  14 extern int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
  15                                 struct snd_pcm_hw_params *params);
  16 extern int pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
  17 extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
  18 extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
  19 extern int pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
  20 extern int pxa2xx_pcm_open(struct snd_pcm_substream *substream);
  21 extern int pxa2xx_pcm_close(struct snd_pcm_substream *substream);
  22 extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
  23         struct vm_area_struct *vma);
  24 extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
  25 extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
  26 extern int pxa2xx_soc_pcm_new(struct snd_soc_pcm_runtime *rtd);
  27 extern const struct snd_pcm_ops pxa2xx_pcm_ops;
  28
  29 /* AC97 */
  30
  31 extern int pxa2xx_ac97_read(int slot, unsigned short reg);
  32 extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
  33
  34 extern bool pxa2xx_ac97_try_warm_reset(void);
  35 extern bool pxa2xx_ac97_try_cold_reset(void);
  36 extern void pxa2xx_ac97_finish_reset(void);
  37
  38 extern int pxa2xx_ac97_hw_suspend(void);
  39 extern int pxa2xx_ac97_hw_resume(void);
  40
  41 extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
  42 extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
  43
  44 #endif