text: /*
  Copyright (c) 2012, Broadcom Europe Ltd.
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are met:
      * Redistributions of source code must retain the above copyright
        notice, this list of conditions and the following disclaimer.
      * Redistributions in binary form must reproduce the above copyright
        notice, this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
      * Neither the name of the copyright holder nor the
        names of its contributors may be used to endorse or promote products
        derived from this software without specific prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
  
  #ifndef _V3DLIB_VC4_MAILBOX_H_
  #define _V3DLIB_VC4_MAILBOX_H_
  
  #include <linux/ioctl.h>
  
  #define MAJOR_NUM 100
  #define IOCTL_MBOX_PROPERTY _IOWR(MAJOR_NUM, 0, char *)
  #define DEVICE_FILE_NAME "/dev/vcio"
  
  namespace V3DLib {
  
  int mbox_open();
  void mbox_close(int file_desc);
  
  unsigned get_version(int file_desc);
  unsigned mem_alloc(int file_desc, unsigned size, unsigned align, unsigned flags);
  unsigned mem_free(int file_desc, unsigned handle);
  unsigned mem_lock(int file_desc, unsigned handle);
  unsigned mem_unlock(int file_desc, unsigned handle);
  void *mapmem(unsigned base, unsigned size);
  void unmapmem(void *addr, unsigned size);
  
  unsigned execute_code(int file_desc, unsigned code, unsigned r0, unsigned r1, unsigned r2, unsigned r3, unsigned r4, unsigned r5);
  unsigned execute_qpu(int file_desc, unsigned num_qpus, unsigned control, unsigned noflush, unsigned timeout);
  unsigned qpu_enable(int file_desc, unsigned enable);
  
  }  // namespace V3DLib
  
  #define BUS_TO_PHYS(addr) (((addr)) & ~0xC0000000)
  
  #endif  // _V3DLIB_VC4_H_
  