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spi-fsl-cpm.h

spi-fsl-cpm.h 1.4 KB
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  1. /* SPDX-License-Identifier: GPL-2.0-or-later */
    2. 

  2. /*
    3. 

  3.  * Freescale SPI controller driver cpm functions.
    4. 

  4.  *
    5. 

  5.  * Maintainer: Kumar Gala
    6. 

  6.  *
    7. 

  7.  * Copyright (C) 2006 Polycom, Inc.
    8. 

  8.  * Copyright 2010 Freescale Semiconductor, Inc.
    9. 

  9.  *
    10. 

  10.  * CPM SPI and QE buffer descriptors mode support:
    11. 

  11.  * Copyright (c) 2009  MontaVista Software, Inc.
    12. 

  12.  * Author: Anton Vorontsov <[email protected]>
    13. 

  13.  */
    14. 

  14. 

  15. #ifndef __SPI_FSL_CPM_H__
    16. 

  16. #define __SPI_FSL_CPM_H__
    17. 

  17. 

  18. #include "spi-fsl-lib.h"
    19. 

  19. 

  20. #ifdef CONFIG_FSL_SOC
    21. 

  21. extern void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi);
    22. 

  22. extern int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
    23. 

  23. 			    struct spi_transfer *t, bool is_dma_mapped);
    24. 

  24. extern void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi);
    25. 

  25. extern void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events);
    26. 

  26. extern int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi);
    27. 

  27. extern void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi);
    28. 

  28. #else
    29. 

  29. static inline void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi) { }
    30. 

  30. static inline int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
    31. 

  31. 				   struct spi_transfer *t,
    32. 

  32. 				   bool is_dma_mapped) { return 0; }
    33. 

  33. static inline void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi) { }
    34. 

  34. static inline void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events) { }
    35. 

  35. static inline int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) { return 0; }
    36. 

  36. static inline void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi) { }
    37. 

  37. #endif
    38. 

  38. 

  39. #endif /* __SPI_FSL_CPM_H__ */
    40.