| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Support for Intel Camera Imaging ISP subsystem. |
| * Copyright (c) 2015, Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope 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. |
| */ |
| |
| #ifndef _IA_CSS_FRAC_H |
| #define _IA_CSS_FRAC_H |
| |
| /* @file |
| * This file contains typedefs used for fractional numbers |
| */ |
| |
| #include <type_support.h> |
| |
| /* Fixed point types. |
| * NOTE: the 16 bit fixed point types actually occupy 32 bits |
| * to save on extension operations in the ISP code. |
| */ |
| /* Unsigned fixed point value, 0 integer bits, 16 fractional bits */ |
| typedef u32 ia_css_u0_16; |
| /* Unsigned fixed point value, 5 integer bits, 11 fractional bits */ |
| typedef u32 ia_css_u5_11; |
| /* Unsigned fixed point value, 8 integer bits, 8 fractional bits */ |
| typedef u32 ia_css_u8_8; |
| /* Signed fixed point value, 0 integer bits, 15 fractional bits */ |
| typedef s32 ia_css_s0_15; |
| |
| #endif /* _IA_CSS_FRAC_H */ |
