1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef PXA2XX_LIB_H 3 #define PXA2XX_LIB_H 4 5 #include <linux/platform_device.h> 6 #include <sound/ac97_codec.h> 7 8 /* PCM */ 9 10 extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream, 11 struct snd_pcm_hw_params *params); 12 extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream); 13 extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd); 14 extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream); 15 extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream); 16 extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream); 17 extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream); 18 extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream, 19 struct vm_area_struct *vma); 20 extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream); 21 extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm); 22 23 /* AC97 */ 24 25 extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg); 26 extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val); 27 28 extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97); 29 extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97); 30 extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97); 31 32 extern int pxa2xx_ac97_hw_suspend(void); 33 extern int pxa2xx_ac97_hw_resume(void); 34 35 extern int pxa2xx_ac97_hw_probe(struct platform_device *dev); 36 extern void pxa2xx_ac97_hw_remove(struct platform_device *dev); 37 38 #endif 39