diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /drivers/media/sprd_gsp/sin_cos.h | |
Diffstat (limited to 'drivers/media/sprd_gsp/sin_cos.h')
| -rw-r--r-- | drivers/media/sprd_gsp/sin_cos.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/media/sprd_gsp/sin_cos.h b/drivers/media/sprd_gsp/sin_cos.h new file mode 100644 index 00000000..ce5e0035 --- /dev/null +++ b/drivers/media/sprd_gsp/sin_cos.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2012 Spreadtrum Communications Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + */ +#ifndef _SIN_COS_H_ +#define _SIN_COS_H_ +#include <linux/types.h> + +#define COSSIN_Q 30 +#define pi 3.14159265359 +#define PI_32 0x3243F6A88 +#define ARC_32_COEF 0x80000000 +#define ARC_32(arc) (int32_t)((arc) / (pi) * ARC_32_COEF); +int32_t sin_32(int32_t n); +int32_t cos_32(int32_t n); +#endif |