b38445eaa0
Introduce an API mirroring the CMSIS-DSP's basicmath. If CMSIS_DSP is enabled, then it will by default be used as a backend. Developers may opt into a custom backend by setting CONFIG_DSP_BACKEND_CMSIS=n. If done, the application must provide `zdsp_backend/dsp.h` and optionally implement the functions in its own .c files. Signed-off-by: Yuval Peress <peress@google.com>
72 lines
1.1 KiB
C
72 lines
1.1 KiB
C
/* Copyright (c) 2022 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef INCLUDE_ZEPHYR_DSP_TYPES_H_
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#define INCLUDE_ZEPHYR_DSP_TYPES_H_
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#include <stdint.h>
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/**
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* @addtogroup math_dsp
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* @{
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @typedef q7_t
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* @brief 8-bit fractional data type in 1.7 format.
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*/
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typedef int8_t q7_t;
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/**
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* @typedef q15_t
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* @brief 16-bit fractional data type in 1.15 format.
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*/
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typedef int16_t q15_t;
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/**
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* @typedef q31_t
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* @brief 32-bit fractional data type in 1.31 format.
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*/
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typedef int32_t q31_t;
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/**
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* @typedef q63_t
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* @brief 64-bit fractional data type in 1.63 format.
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*/
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typedef int64_t q63_t;
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/**
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* @typedef float16_t
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* @brief 16-bit floating point type definition.
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*/
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#if defined(CONFIG_FP16)
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typedef __fp16 float16_t;
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#endif /* CONFIG_FP16 */
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/**
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* @typedef float32_t
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* @brief 32-bit floating-point type definition.
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*/
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typedef float float32_t;
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/**
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* @typedef float64_t
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* @brief 64-bit floating-point type definition.
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*/
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typedef double float64_t;
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#endif /* INCLUDE_ZEPHYR_DSP_TYPES_H_ */
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