Line data Source code
1 1 : /* Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
2 : * SPDX-License-Identifier: Apache-2.0
3 : */
4 :
5 : /**
6 : * @file zephyr/dsp/basicmath_f16.h
7 : *
8 : * @brief Public APIs for DSP basicmath for 16 bit floating point
9 : */
10 :
11 : #ifndef ZEPHYR_INCLUDE_DSP_BASICMATH_F16_H_
12 : #define ZEPHYR_INCLUDE_DSP_BASICMATH_F16_H_
13 :
14 : #ifndef CONFIG_FP16
15 : #error "Cannot use float16 DSP functionality without CONFIG_FP16 enabled"
16 : #endif /* CONFIG_FP16 */
17 :
18 : #include <zephyr/dsp/dsp.h>
19 :
20 : #ifdef __cplusplus
21 : extern "C" {
22 : #endif
23 :
24 : /**
25 : * @ingroup math_dsp_basic_mult
26 : * @brief Floating-point vector multiplication.
27 : * @param[in] src_a points to the first input vector
28 : * @param[in] src_b points to the second input vector
29 : * @param[out] dst points to the output vector
30 : * @param[in] block_size number of samples in each vector
31 : */
32 1 : DSP_FUNC_SCOPE void zdsp_mult_f16(const float16_t *src_a, const float16_t *src_b, float16_t *dst,
33 : uint32_t block_size);
34 :
35 : /**
36 : * @ingroup math_dsp_basic_add
37 : * @brief Floating-point vector addition.
38 : * @param[in] src_a points to the first input vector
39 : * @param[in] src_b points to the second input vector
40 : * @param[out] dst points to the output vector
41 : * @param[in] block_size number of samples in each vector
42 : */
43 1 : DSP_FUNC_SCOPE void zdsp_add_f16(const float16_t *src_a, const float16_t *src_b, float16_t *dst,
44 : uint32_t block_size);
45 :
46 : /**
47 : * @ingroup math_dsp_basic_sub
48 : * @brief Floating-point vector subtraction.
49 : * @param[in] src_a points to the first input vector
50 : * @param[in] src_b points to the second input vector
51 : * @param[out] dst points to the output vector
52 : * @param[in] block_size number of samples in each vector
53 : */
54 1 : DSP_FUNC_SCOPE void zdsp_sub_f16(const float16_t *src_a, const float16_t *src_b, float16_t *dst,
55 : uint32_t block_size);
56 :
57 : /**
58 : * @ingroup math_dsp_basic_scale
59 : * @brief Multiplies a floating-point vector by a scalar.
60 : * @param[in] src points to the input vector
61 : * @param[in] scale scale factor to be applied
62 : * @param[out] dst points to the output vector
63 : * @param[in] block_size number of samples in the vector
64 : */
65 1 : DSP_FUNC_SCOPE void zdsp_scale_f16(const float16_t *src, float16_t scale, float16_t *dst,
66 : uint32_t block_size);
67 :
68 : /**
69 : * @ingroup math_dsp_basic_abs
70 : * @brief Floating-point vector absolute value.
71 : * @param[in] src points to the input buffer
72 : * @param[out] dst points to the output buffer
73 : * @param[in] block_size number of samples in each vector
74 : */
75 1 : DSP_FUNC_SCOPE void zdsp_abs_f16(const float16_t *src, float16_t *dst, uint32_t block_size);
76 :
77 : /**
78 : * @ingroup math_dsp_basic_dot
79 : * @brief Dot product of floating-point vectors.
80 : * @param[in] src_a points to the first input vector
81 : * @param[in] src_b points to the second input vector
82 : * @param[in] block_size number of samples in each vector
83 : * @param[out] result output result returned here
84 : */
85 1 : DSP_FUNC_SCOPE void zdsp_dot_prod_f16(const float16_t *src_a, const float16_t *src_b,
86 : uint32_t block_size, float16_t *result);
87 :
88 : /**
89 : * @ingroup math_dsp_basic_offset
90 : * @brief Adds a constant offset to a floating-point vector.
91 : * @param[in] src points to the input vector
92 : * @param[in] offset is the offset to be added
93 : * @param[out] dst points to the output vector
94 : * @param[in] block_size number of samples in the vector
95 : */
96 1 : DSP_FUNC_SCOPE void zdsp_offset_f16(const float16_t *src, float16_t offset, float16_t *dst,
97 : uint32_t block_size);
98 :
99 : /**
100 : * @ingroup math_dsp_basic_negate
101 : * @brief Negates the elements of a floating-point vector.
102 : * @param[in] src points to the input vector
103 : * @param[out] dst points to the output vector
104 : * @param[in] block_size number of samples in the vector
105 : */
106 1 : DSP_FUNC_SCOPE void zdsp_negate_f16(const float16_t *src, float16_t *dst, uint32_t block_size);
107 :
108 : /**
109 : * @ingroup math_dsp_basic_clip
110 : * @brief Elementwise floating-point clipping
111 : * @param[in] src points to input values
112 : * @param[out] dst points to output clipped values
113 : * @param[in] low lower bound
114 : * @param[in] high higher bound
115 : * @param[in] num_samples number of samples to clip
116 : */
117 1 : DSP_FUNC_SCOPE void zdsp_clip_f16(const float16_t *src, float16_t *dst, float16_t low,
118 : float16_t high, uint32_t num_samples);
119 :
120 : #ifdef __cplusplus
121 : }
122 : #endif
123 :
124 : #endif /* ZEPHYR_INCLUDE_DSP_BASICMATH_F16_H_ */
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