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-rw-r--r--include/sound/pxa2xx-lib.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
new file mode 100644
index 000000000000..2fd3d251d9a5
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+++ b/include/sound/pxa2xx-lib.h
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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