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kernel/linux-rt-4.4.41/drivers/media/pci/cx25821/cx25821-biffuncs.h 1.2 KB
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  /*
   *  Driver for the Conexant CX25821 PCIe bridge
   *
   *  Copyright (C) 2009 Conexant Systems Inc.
   *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.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, 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.
   *
   *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
   */
  
  #ifndef _BITFUNCS_H
  #define _BITFUNCS_H
  
  #define SetBit(Bit)  (1 << Bit)
  
  static inline u8 getBit(u32 sample, u8 index)
  {
  	return (u8) ((sample >> index) & 1);
  }
  
  static inline u32 clearBitAtPos(u32 value, u8 bit)
  {
  	return value & ~(1 << bit);
  }
  
  static inline u32 setBitAtPos(u32 sample, u8 bit)
  {
  	sample |= (1 << bit);
  	return sample;
  
  }
  
  #endif