[media] cx25821: get rid of warning: no previous prototype

[deliverable/linux.git] / drivers / media / pci / cx25821 / cx25821-biffuncs.h

/*
 *  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