LXR linux/drivers/spi/spi-fsl-cpm.h

   1/*
   2 * Freescale SPI controller driver cpm functions.
   3 *
   4 * Maintainer: Kumar Gala
   5 *
   6 * Copyright (C) 2006 Polycom, Inc.
   7 * Copyright 2010 Freescale Semiconductor, Inc.
   8 *
   9 * CPM SPI and QE buffer descriptors mode support:
  10 * Copyright (c) 2009  MontaVista Software, Inc.
  11 * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
  12 *
  13 * This program is free software; you can redistribute  it and/or modify it
  14 * under  the terms of  the GNU General  Public License as published by the
  15 * Free Software Foundation;  either version 2 of the  License, or (at your
  16 * option) any later version.
  17 */
  18
  19#ifndef __SPI_FSL_CPM_H__
  20#define __SPI_FSL_CPM_H__
  21
  22#include "spi-fsl-lib.h"
  23
  24#ifdef CONFIG_FSL_SOC
  25extern void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi);
  26extern int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
  27                            struct spi_transfer *t, bool is_dma_mapped);
  28extern void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi);
  29extern void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events);
  30extern int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi);
  31extern void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi);
  32#else
  33static inline void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi) { }
  34static inline int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi,
  35                                   struct spi_transfer *t,
  36                                   bool is_dma_mapped) { return 0; }
  37static inline void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi) { }
  38static inline void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events) { }
  39static inline int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) { return 0; }
  40static inline void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi) { }
  41#endif
  42
  43#endif /* __SPI_FSL_CPM_H__ */
  44