xref: /OK3568_Linux_fs/kernel/drivers/media/pci/cx25821/cx25821-biffuncs.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  *  Driver for the Conexant CX25821 PCIe bridge
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  *  Copyright (C) 2009 Conexant Systems Inc.
6*4882a593Smuzhiyun  *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
7*4882a593Smuzhiyun  */
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #ifndef _BITFUNCS_H
10*4882a593Smuzhiyun #define _BITFUNCS_H
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun #define SetBit(Bit)  (1 << Bit)
13*4882a593Smuzhiyun 
getBit(u32 sample,u8 index)14*4882a593Smuzhiyun static inline u8 getBit(u32 sample, u8 index)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun 	return (u8) ((sample >> index) & 1);
17*4882a593Smuzhiyun }
18*4882a593Smuzhiyun 
clearBitAtPos(u32 value,u8 bit)19*4882a593Smuzhiyun static inline u32 clearBitAtPos(u32 value, u8 bit)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun 	return value & ~(1 << bit);
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun 
setBitAtPos(u32 sample,u8 bit)24*4882a593Smuzhiyun static inline u32 setBitAtPos(u32 sample, u8 bit)
25*4882a593Smuzhiyun {
26*4882a593Smuzhiyun 	sample |= (1 << bit);
27*4882a593Smuzhiyun 	return sample;
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun }
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun #endif
32