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 */
 9struct snd_pcm_substream;
10struct snd_pcm_hw_params;
11struct snd_soc_pcm_runtime;
12struct snd_pcm;
13
14extern int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
 
 
 
 
 
 
 
15				struct snd_pcm_hw_params *params);
16extern int pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
17extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
18extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
19extern int pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
20extern int pxa2xx_pcm_open(struct snd_pcm_substream *substream);
21extern int pxa2xx_pcm_close(struct snd_pcm_substream *substream);
 
22extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
23	struct vm_area_struct *vma);
24extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
25extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
26extern int pxa2xx_soc_pcm_new(struct snd_soc_pcm_runtime *rtd);
27extern const struct snd_pcm_ops pxa2xx_pcm_ops;
28
29/* AC97 */
30
31extern int pxa2xx_ac97_read(int slot, unsigned short reg);
32extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
33
34extern bool pxa2xx_ac97_try_warm_reset(void);
35extern bool pxa2xx_ac97_try_cold_reset(void);
36extern void pxa2xx_ac97_finish_reset(void);
37
38extern int pxa2xx_ac97_hw_suspend(void);
39extern int pxa2xx_ac97_hw_resume(void);
40
41extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
42extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
43
44#endif

 
 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