include/sound/pxa2xx-lib.h

   1 #ifndef PXA2XX_LIB_H
   2 #define PXA2XX_LIB_H
   3
   4 #include <linux/platform_device.h>
   5 #include <sound/ac97_codec.h>
   6
   7 /* PCM */
   8
   9 struct pxa2xx_pcm_dma_params {
  10         char *name;                     /* stream identifier */
  11         u32 dcmd;                       /* DMA descriptor dcmd field */
  12         volatile u32 *drcmr;            /* the DMA request channel to use */
  13         u32 dev_addr;                   /* device physical address for DMA */
  14 };
  15
  16 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
  17                                 struct snd_pcm_hw_params *params);
  18 extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
  19 extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
  20 extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
  21 extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
  22 extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id);
  23 extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream);
  24 extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream);
  25 extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
  26         struct vm_area_struct *vma);
  27 extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
  28 extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
  29
  30 /* AC97 */
  31
  32 extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
  33 extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
  34
  35 extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
  36 extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
  37 extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
  38
  39 extern int pxa2xx_ac97_hw_suspend(void);
  40 extern int pxa2xx_ac97_hw_resume(void);
  41
  42 extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
  43 extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
  44
  45 #endif