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https://github.com/torvalds/linux
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d65a14587a
Use snd_dmaengine_dai_dma_data for passing the dma parameters from clients to the pxa pcm lib. This does no functional change, it's just an intermedia step to migrate the pxa bits over to dmaengine. The calculation of dcmd is a transition hack which will be removed again in a later patch. It's just there to make the transition more readable. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Mark Brown <broonie@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
38 lines
1.5 KiB
C
38 lines
1.5 KiB
C
#ifndef PXA2XX_LIB_H
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#define PXA2XX_LIB_H
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#include <linux/platform_device.h>
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#include <sound/ac97_codec.h>
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/* PCM */
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extern int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params);
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extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
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extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
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extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
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extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
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extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id);
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extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream);
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extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream);
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extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
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struct vm_area_struct *vma);
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extern int pxa2xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream);
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extern void pxa2xx_pcm_free_dma_buffers(struct snd_pcm *pcm);
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/* AC97 */
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extern unsigned short pxa2xx_ac97_read(struct snd_ac97 *ac97, unsigned short reg);
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extern void pxa2xx_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val);
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extern bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97);
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extern bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97);
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extern void pxa2xx_ac97_finish_reset(struct snd_ac97 *ac97);
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extern int pxa2xx_ac97_hw_suspend(void);
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extern int pxa2xx_ac97_hw_resume(void);
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extern int pxa2xx_ac97_hw_probe(struct platform_device *dev);
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extern void pxa2xx_ac97_hw_remove(struct platform_device *dev);
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#endif
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