1 /*
2 * Copyright 2012-15 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26 #ifndef __DAL_CONVERSION_H__
27 #define __DAL_CONVERSION_H__
28
29 #include "include/fixed31_32.h"
30
31 uint16_t fixed_point_to_int_frac(
32 struct fixed31_32 arg,
33 uint8_t integer_bits,
34 uint8_t fractional_bits);
35
36 void convert_float_matrix(
37 uint16_t *matrix,
38 struct fixed31_32 *flt,
39 uint32_t buffer_size);
40
41 void reduce_fraction(uint32_t num, uint32_t den,
42 uint32_t *out_num, uint32_t *out_den);
43
44 void convert_hw_matrix(struct fixed31_32 *matrix,
45 uint16_t *reg,
46 uint32_t buffer_size);
47
log_2(unsigned int num)48 static inline unsigned int log_2(unsigned int num)
49 {
50 return ilog2(num);
51 }
52
53 #endif
54