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;
13struct snd_soc_component;
14
15extern int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
16 struct snd_pcm_hw_params *params);
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_preallocate_dma_buffer(struct snd_pcm *pcm);
23extern int pxa2xx_soc_pcm_new(struct snd_soc_component *component,
24 struct snd_soc_pcm_runtime *rtd);
25extern int pxa2xx_soc_pcm_open(struct snd_soc_component *component,
26 struct snd_pcm_substream *substream);
27extern int pxa2xx_soc_pcm_close(struct snd_soc_component *component,
28 struct snd_pcm_substream *substream);
29extern int pxa2xx_soc_pcm_hw_params(struct snd_soc_component *component,
30 struct snd_pcm_substream *substream,
31 struct snd_pcm_hw_params *params);
32extern int pxa2xx_soc_pcm_prepare(struct snd_soc_component *component,
33 struct snd_pcm_substream *substream);
34extern int pxa2xx_soc_pcm_trigger(struct snd_soc_component *component,
35 struct snd_pcm_substream *substream, int cmd);
36extern snd_pcm_uframes_t
37pxa2xx_soc_pcm_pointer(struct snd_soc_component *component,
38 struct snd_pcm_substream *substream);
39
40/* AC97 */
41
42extern int pxa2xx_ac97_read(int slot, unsigned short reg);
43extern int pxa2xx_ac97_write(int slot, unsigned short reg, unsigned short val);
44
45extern bool pxa2xx_ac97_try_warm_reset(void);
46extern bool pxa2xx_ac97_try_cold_reset(void);
47extern void pxa2xx_ac97_finish_reset(void);
48
49extern int pxa2xx_ac97_hw_suspend(void);
50extern int pxa2xx_ac97_hw_resume(void);
51
52extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
53extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
54
55/* modem registers, used by touchscreen driver */
56u32 pxa2xx_ac97_read_modr(void);
57u32 pxa2xx_ac97_read_misr(void);
58
59#endif
60

source code of linux/include/sound/pxa2xx-lib.h