1 /* 2 * Driver for the Conexant CX25821 PCIe bridge 3 * 4 * Copyright (C) 2009 Conexant Systems Inc. 5 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 */ 22 23 #ifndef _BITFUNCS_H 24 #define _BITFUNCS_H 25 26 #define SetBit(Bit) (1 << Bit) 27 28 static inline u8 getBit(u32 sample, u8 index) 29 { 30 return (u8) ((sample >> index) & 1); 31 } 32 33 static inline u32 clearBitAtPos(u32 value, u8 bit) 34 { 35 return value & ~(1 << bit); 36 } 37 38 static inline u32 setBitAtPos(u32 sample, u8 bit) 39 { 40 sample |= (1 << bit); 41 return sample; 42 43 } 44 45 #endif 46