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 45
