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kernel/linux-rt-4.4.41/drivers/media/usb/pvrusb2/pvrusb2-util.h 1.49 KB
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  /*
   *
   *
   *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
   *
   *  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
   *
   *  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.
   *
   *  You should have received a copy of the GNU General Public License
   *  along with this program; if not, write to the Free Software
   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   */
  #ifndef __PVRUSB2_UTIL_H
  #define __PVRUSB2_UTIL_H
  
  #define PVR2_DECOMPOSE_LE(t,i,d) \
      do {    \
  	(t)[i] = (d) & 0xff;\
  	(t)[i+1] = ((d) >> 8) & 0xff;\
  	(t)[i+2] = ((d) >> 16) & 0xff;\
  	(t)[i+3] = ((d) >> 24) & 0xff;\
      } while(0)
  
  #define PVR2_DECOMPOSE_BE(t,i,d) \
      do {    \
  	(t)[i+3] = (d) & 0xff;\
  	(t)[i+2] = ((d) >> 8) & 0xff;\
  	(t)[i+1] = ((d) >> 16) & 0xff;\
  	(t)[i] = ((d) >> 24) & 0xff;\
      } while(0)
  
  #define PVR2_COMPOSE_LE(t,i) \
      ((((u32)((t)[i+3])) << 24) | \
       (((u32)((t)[i+2])) << 16) | \
       (((u32)((t)[i+1])) << 8) | \
       ((u32)((t)[i])))
  
  #define PVR2_COMPOSE_BE(t,i) \
      ((((u32)((t)[i])) << 24) | \
       (((u32)((t)[i+1])) << 16) | \
       (((u32)((t)[i+2])) << 8) | \
       ((u32)((t)[i+3])))
  
  
  #endif /* __PVRUSB2_UTIL_H */