text: #ifndef _INC_PMCC4_SYSDEP_H_
  #define _INC_PMCC4_SYSDEP_H_
  
  /*-----------------------------------------------------------------------------
   * pmcc4_sysdep.h -
   *
   * Copyright (C) 2005  SBE, Inc.
   *
   *   This program is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU General Public License as published by
   *   the Free Software Foundation; either version 2 of the License, or
   *   (at your option) any later version.
   *
   *   This program is distributed in the hope that it will be useful,
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *   GNU General Public License for more details.
   */
  
  /* reduce multiple autoconf entries to a single definition */
  
  #ifdef CONFIG_SBE_PMCC4_HDLC_V7_MODULE
  #undef CONFIG_SBE_PMCC4_HDLC_V7
  #define CONFIG_SBE_PMCC4_HDLC_V7  1
  #endif
  
  #ifdef CONFIG_SBE_PMCC4_NCOMM_MODULE
  #undef CONFIG_SBE_PMCC4_NCOMM
  #define CONFIG_SBE_PMCC4_NCOMM  1
  #endif
  
  
  /* FLUSH MACROS - if using ioremap_nocache(), then these can be NOOPS,
   * otherwise a memory barrier needs to be inserted.
   */
  
  #define FLUSH_PCI_READ()     rmb()
  #define FLUSH_PCI_WRITE()    wmb()
  #define FLUSH_MEM_READ()     rmb()
  #define FLUSH_MEM_WRITE()    wmb()
  
  
  /*
   * System dependent callbacks routines, not inlined...
   * For inlined system dependent routines, see include/sbecom_inlinux_linux.h
   */
  
  /*
   * passes received memory token back to the system, <user> is parameter from
   * sd_new_chan() used to create the channel which the data arrived on
   */
  
  void sd_recv_consume(void *token, size_t len, void *user);
  
  void        sd_disable_xmit (void *user);
  void        sd_enable_xmit (void *user);
  int         sd_line_is_ok (void *user);
  void        sd_line_is_up (void *user);
  void        sd_line_is_down (void *user);
  int         sd_queue_stopped (void *user);
  
  #endif                          /*** _INC_PMCC4_SYSDEP_H_ ***/
  