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[AVR] Add ATxmega CRC register definition for lld driver. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15903 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Theodore Ateba 2022-12-22 22:13:49 +00:00
parent 2dbbbeb47a
commit d7cc12cbad
2 changed files with 142 additions and 0 deletions
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11
os/hal/ports/AVR/XMEGA/LLD/CRCv1/driver.mk Normal file
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ifeq ($(USE_SMART_BUILD),yes)
ifneq ($(findstring HAL_USE_CRC TRUE,$(HALCONF)),)
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/CRCv1/hal_crc_lld.c
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/CRCv1/hal_crc.c
endif
else
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/CRCv1/hal_crc_lld.c
PLATFORMSRC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/CRCv1/hal_crc.c
endif
PLATFORMINC += $(CHIBIOS)/os/hal/ports/AVR/XMEGA/LLD/CRCv1

131
os/hal/ports/AVR/XMEGA/LLD/CRCv1/xmega_crc.h Normal file
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/*
ChibiOS - Copyright (C) 2006..2022 Theodore Ateba
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file CRCv1/xmega_crc.h
* @brief XMEGA CRC units common header.
* @note This file requires definitions from the ATMEL XMEGA header file.
*
* @addtogroup XMEGA_CRCv1
* @{
*/
#ifndef XMEGA_CRC_H
#define XMEGA_CRC_H
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @brief CRC module base address.
*/
#define CRC_BASE 0x00D0
/**
* @note Discarded definition from Atmel ATxmega headers.
* The CRC driver uses its own definition in order to have an
* unified handling for all devices.
*/
#undef CRC
/**
* @name CRC Cyclic redondancy check definitions.
* @{
*/
#define CRC ((xmega_crc_t *)CRC_BASE)
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief XMEGA CRC registers block.
*/
typedef struct {
volatile union {
uint8_t reg;
struct {
uint8_t SOURCE : 4;
uint8_t : 1;
uint8_t CRC32 : 1;
uint8_t RESET : 2;
} bit;
} CTRL;
volatile union {
uint8_t reg;
struct {
uint8_t BUSY : 1;
uint8_t ZERO : 1;
uint8_t : 6;
} bit;
} STATUS;
uint8_t reserved1;
volatile union {
uint8_t reg;
struct {
uint8_t DATAIN : 8;
} bit;
} DATAIN;
volatile union {
uint8_t reg;
struct {
uint8_t CHECKSUM : 8;
} bit;
} CHECKSUM0;
volatile union {
uint8_t reg;
struct {
uint8_t CHECKSUM : 8;
} bit;
} CHECKSUM1;
volatile union {
uint8_t reg;
struct {
uint8_t CHECKSUM : 8;
} bit;
} CHECKSUM2;
volatile union {
uint8_t reg;
struct {
uint8_t CHECKSUM : 8;
} bit;
} CHECKSUM3;
} xmega_crc_t;
/** @} */
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#endif /* XMEGA_CRC_H */
/** @} */