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 9struct 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 16extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream, 17 struct snd_pcm_hw_params *params); 18extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream); 19extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd); 20extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream); 21extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream); 22extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id); 23extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream); 24extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream); 25extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream, 26 struct vm_area_struct *vma); 27extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream); 28extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm); 29 30/* AC97 */ 31 32extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg); 33extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val); 34 35extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97); 36extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97); 37extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97); 38 39extern int pxa2xx_ac97_hw_suspend(void); 40extern int pxa2xx_ac97_hw_resume(void); 41 42extern int pxa2xx_ac97_hw_probe(struct platform_device *dev); 43extern void pxa2xx_ac97_hw_remove(struct platform_device *dev); 44 45#endif 46