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