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