psc.h 1.6 KB

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  1. /*
  2. * Au12x0/Au1550 PSC ALSA ASoC audio support.
  3. *
  4. * (c) 2007-2008 MSC Vertriebsges.m.b.H.,
  5. * Manuel Lauss <manuel.lauss@gmail.com>
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License version 2 as
  9. * published by the Free Software Foundation.
  10. *
  11. */
  12. #ifndef _AU1X_PCM_H
  13. #define _AU1X_PCM_H
  14. /* DBDMA helpers */
  15. extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev);
  16. extern void au1xpsc_pcm_destroy(struct platform_device *dmapd);
  17. struct au1xpsc_audio_data {
  18. void __iomem *mmio;
  19. unsigned long cfg;
  20. unsigned long rate;
  21. struct snd_soc_dai_driver dai_drv;
  22. unsigned long pm[2];
  23. struct mutex lock;
  24. struct platform_device *dmapd;
  25. };
  26. #define PCM_TX 0
  27. #define PCM_RX 1
  28. #define SUBSTREAM_TYPE(substream) \
  29. ((substream)->stream == SNDRV_PCM_STREAM_PLAYBACK ? PCM_TX : PCM_RX)
  30. /* easy access macros */
  31. #define PSC_CTRL(x) ((unsigned long)((x)->mmio) + PSC_CTRL_OFFSET)
  32. #define PSC_SEL(x) ((unsigned long)((x)->mmio) + PSC_SEL_OFFSET)
  33. #define I2S_STAT(x) ((unsigned long)((x)->mmio) + PSC_I2SSTAT_OFFSET)
  34. #define I2S_CFG(x) ((unsigned long)((x)->mmio) + PSC_I2SCFG_OFFSET)
  35. #define I2S_PCR(x) ((unsigned long)((x)->mmio) + PSC_I2SPCR_OFFSET)
  36. #define AC97_CFG(x) ((unsigned long)((x)->mmio) + PSC_AC97CFG_OFFSET)
  37. #define AC97_CDC(x) ((unsigned long)((x)->mmio) + PSC_AC97CDC_OFFSET)
  38. #define AC97_EVNT(x) ((unsigned long)((x)->mmio) + PSC_AC97EVNT_OFFSET)
  39. #define AC97_PCR(x) ((unsigned long)((x)->mmio) + PSC_AC97PCR_OFFSET)
  40. #define AC97_RST(x) ((unsigned long)((x)->mmio) + PSC_AC97RST_OFFSET)
  41. #define AC97_STAT(x) ((unsigned long)((x)->mmio) + PSC_AC97STAT_OFFSET)
  42. #endif