diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/ia_css_frac.h')
| -rw-r--r-- | drivers/staging/media/atomisp/pci/ia_css_frac.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/ia_css_frac.h b/drivers/staging/media/atomisp/pci/ia_css_frac.h new file mode 100644 index 000000000000..59720370cb8e --- /dev/null +++ b/drivers/staging/media/atomisp/pci/ia_css_frac.h @@ -0,0 +1,37 @@ +/* + * 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 */ |