imx-pcm.h 1.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0+ */
  2. /*
  3. * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
  4. *
  5. * This code is based on code copyrighted by Freescale,
  6. * Liam Girdwood, Javier Martin and probably others.
  7. */
  8. #ifndef _IMX_PCM_H
  9. #define _IMX_PCM_H
  10. #include <linux/platform_data/dma-imx.h>
  11. /*
  12. * Do not change this as the FIQ handler depends on this size
  13. */
  14. #define IMX_SSI_DMABUF_SIZE (64 * 1024)
  15. #define IMX_DEFAULT_DMABUF_SIZE (64 * 1024)
  16. #define IMX_SAI_DMABUF_SIZE (64 * 1024)
  17. #define IMX_SPDIF_DMABUF_SIZE (64 * 1024)
  18. #define IMX_ESAI_DMABUF_SIZE (256 * 1024)
  19. static inline void
  20. imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data,
  21. int dma, enum sdma_peripheral_type peripheral_type)
  22. {
  23. dma_data->dma_request = dma;
  24. dma_data->priority = DMA_PRIO_HIGH;
  25. dma_data->peripheral_type = peripheral_type;
  26. }
  27. struct imx_pcm_fiq_params {
  28. int irq;
  29. void __iomem *base;
  30. /* Pointer to original ssi driver to setup tx rx sizes */
  31. struct snd_dmaengine_dai_dma_data *dma_params_rx;
  32. struct snd_dmaengine_dai_dma_data *dma_params_tx;
  33. };
  34. #if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
  35. int imx_pcm_dma_init(struct platform_device *pdev, size_t size);
  36. #else
  37. static inline int imx_pcm_dma_init(struct platform_device *pdev, size_t size)
  38. {
  39. return -ENODEV;
  40. }
  41. #endif
  42. #if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
  43. int imx_pcm_fiq_init(struct platform_device *pdev,
  44. struct imx_pcm_fiq_params *params);
  45. void imx_pcm_fiq_exit(struct platform_device *pdev);
  46. #else
  47. static inline int imx_pcm_fiq_init(struct platform_device *pdev,
  48. struct imx_pcm_fiq_params *params)
  49. {
  50. return -ENODEV;
  51. }
  52. static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
  53. {
  54. }
  55. #endif
  56. #endif /* _IMX_PCM_H */