# Copyright (c) 2016,2023 Intel Corporation
# Copyright (c) 2025 Renesas Electronics Corporation
# SPDX-License-Identifier: Apache-2.0

DT_CHOSEN_Z_CRC := zephyr,crc

menuconfig CRC
	bool "Cyclic redundancy check (CRC) Support"
	help
	  Enable use of CRC.

if CRC

module = CRC
module-str = CRC
source "subsys/logging/Kconfig.template.log_config"

config CRC_HW_HANDLER
	bool "CRC Hardware Accelerator"
	default y if $(dt_chosen_enabled,$(DT_CHOSEN_Z_CRC))
	select CRC_DRIVER
	help
	  Enable use of CRC hardware

config CRC4
	bool "CRC-4 (Generic)"
	depends on CRC_DRIVER_HAS_CRC4
	default y
	help
	  Implements a generic CRC-4 algorithm. This is suitable for platforms
	  without hardware CRC support. Offers flexibility but has lower performance
	  compared to hardware-based implementations.

config CRC4_TI
	bool "CRC-4 (TI Polynomial)"
	depends on CRC_DRIVER_HAS_CRC4_TI
	default y
	help
	  Implements the TI-specific CRC-4 algorithm. Commonly used in low-level
	  embedded communication where minimal CRC overhead is needed.

config CRC7_BE
	bool "CRC-7 (Big Endian)"
	depends on CRC_DRIVER_HAS_CRC7_BE
	default y
	help
	  Implements a CRC-7 algorithm with Big Endian bit order. Often used
	  in SD card protocols and other serial communication standards.

config CRC8
	bool "CRC-8 (Generic)"
	depends on CRC_DRIVER_HAS_CRC8
	default y
	help
	  Implements a generic CRC-8 algorithm. Useful for small data integrity
	  checks such as checksums and simple communication protocols.

config CRC8_ROHC
	bool "CRC-8 (ROHC)"
	depends on CRC_DRIVER_HAS_CRC8_ROHC
	default y
	help
	  Implements the CRC-8 ROHC (Robust Header Compression) algorithm,
	  typically used in compressed IP header protocols and networking.

config CRC8_CCITT
	bool "CRC-8 (CCITT)"
	depends on CRC_DRIVER_HAS_CRC8_CCITT
	default y
	help
	  Implements the CRC-8 CCITT polynomial. Commonly used in
	  telecommunications and low-power sensor protocols.

config CRC16
	bool "CRC-16 (Generic)"
	depends on CRC_DRIVER_HAS_CRC16
	default y
	help
	  Implements the generic CRC-16 algorithm. Frequently used in
	  storage, file transmission, and basic serial communication protocols.

config CRC16_ANSI
	bool "CRC-16 (ANSI)"
	depends on CRC_DRIVER_HAS_CRC16_ANSI
	default y
	help
	  Implements the ANSI variant of CRC-16, also known as CRC-16-IBM.
	  Commonly applied in legacy serial and file systems.

config CRC16_CCITT
	bool "CRC-16 (CCITT)"
	depends on CRC_DRIVER_HAS_CRC16_CCITT
	default y
	help
	  Implements the CCITT variant of CRC-16, widely used in
	  telecommunication systems such as XMODEM and HDLC protocols.

config CRC16_ITU_T
	bool "CRC-16 (ITU-T)"
	depends on CRC_DRIVER_HAS_CRC16_ITU_T
	default y
	help
	  Implements the ITU-T (formerly CCITT) CRC-16 variant.
	  Popular in modem protocols and wireless communication standards.

config CRC16_REFLECT
	bool "CRC-16 (Reflected)"
	depends on CRC_DRIVER_HAS_CRC16_REFLECT
	default y
	help
	  Implements the reflected (bit-reversed) variant of CRC-16-CCITT.
	  Useful in systems that process data in LSB-first order.

config CRC24_PGP
	bool "CRC-24 (PGP)"
	depends on CRC_DRIVER_HAS_CRC24_PGP
	default y
	help
	  Implements a CRC24 algorithm, used in applications like Bluetooth
	  and certain cryptographic protocols.

config CRC32_C
	bool "CRC-32C"
	depends on CRC_DRIVER_HAS_CRC32_C
	default y
	help
	  Implements the CRC32-C (Castagnoli) algorithm, optimized for
	  high-performance applications such as storage, networking,
	  and error detection in modern processors.

config CRC32_IEEE
	bool "CRC-32 (IEEE)"
	depends on CRC_DRIVER_HAS_CRC32_IEEE
	default y
	help
	  Implements the CRC32-IEEE (CRC-32) algorithm, commonly used
	  in Ethernet, ZIP file integrity checks, and other standard
	  networking and storage applications.


config CRC32_K_4_2
	bool "CRC-32K/4.2"
	depends on CRC_DRIVER_HAS_CRC32_K_4_2
	default y
	help
	  Implement the CRC-32K/4.2 algorithm, a variant of the standard
	  CRC32-IEEE used in Ethernet, ZIP files, and other data integrity
	  applications.

config CRC32_K_4_2_TABLE_256
	bool "CRC-32K/4.2 Table 256"
	help
	  Enables the software implementation of the CRC-32K/4.2 algorithm
	  using a 256-entry lookup table for faster computation.

config CRC_SHELL
	bool "CRC Shell"
	depends on SHELL
	select GETOPT
	help
	  Enable CRC checking for memory regions from the shell.

endif # CRC