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[AVR] Add CRC HAL file for CRC module. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@15909 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Theodore Ateba 2022-12-24 22:07:47 +00:00
parent 50e9ab03a3
commit 7773ef599d
3 changed files with 238 additions and 2 deletions
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156
os/hal/ports/AVR/XMEGA/LLD/CRCv1/hal_crc.c Normal file
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@ -0,0 +1,156 @@
/*
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 hal_crc.c
* @brief CRC Driver code.
*
* @addtogroup CRCv1
* @{
*/
#include "hal.h"
/* Custom Driver must directly include the low level driver. */
#include "hal_crc_lld.h"
#if HAL_USE_CRC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief CRC Driver initialization.
* @note This function is not implicitly invoked by @p halInit(). So we
* need to explicitly initialize the driver by calling this function.
*
* @init
*/
void crcInit(void) {
crc_lld_init();
}
/**
* @brief Initializes the standard part of a @p CRCDriver structure.
*
* @param[out] crcp pointer to the @p CRCDriver object
*
* @init
*/
void crcObjectInit(CRCDriver *crcp) {
crc_lld_object_init(crcp);
}
/**
* @brief Configures and activates the CRC peripheral.
*
* @param[in] crcp pointer to the @p CRCDriver object
* @param[in] config pointer to the @p CRCConfig object
* @return The operation status.
*
* @api
*/
msg_t crcStart(CRCDriver *crcp, CRCConfig *config) {
osalDbgCheck((crcp != NULL) && (config != NULL));
osalSysLock();
osalDbgAssert((crcp->state == CRC_STOP) || (crcp->state == CRC_READY),
"invalid state");
crcp->config = config;
crc_lld_start(crcp, config);
crcp->state = CRC_READY;
osalSysUnlock();
return HAL_RET_SUCCESS;
}
/**
* @brief Deactivates the CRC peripheral.
*
* @param[in] crcp pointer to the @p CRCDriver object
*
* @api
*/
void crcStop(CRCDriver *crcp) {
osalDbgCheck(crcp != NULL);
osalSysLock();
osalDbgAssert((crcp->state == CRC_STOP) || (crcp->state == CRC_READY),
"invalid state");
crc_lld_stop(crcp);
crcp->config = NULL;
crcp->state = CRC_STOP;
osalSysUnlock();
}
/**
* @brief Resets CRC module.
*
* @param[in] crcp pointer to the @p CRCDriver object
* @param[in] rt type of reset to perform, all to zeros or all to ones
*
* @api
*/
void crcReset(CRCDriver *crcp, crcreset_t rt) {
osalDbgCheck(crcp != NULL);
osalSysLock();
osalDbgAssert(crcp->state == CRC_READY, "not ready");
crc_lld_reset(crcp, rt);
osalSysUnlock();
}
uint16_t crcComputeCRC16OnData(CRCDriver *crcp, uint8_t *srcp, size_t size) {
uint16_t retVal = 0;
osalDbgCheck(crcp != NULL);
osalSysLock();
retVal = crc_lld_compute_crc16_on_data(crcp, srcp, size);
osalSysUnlock();
return retVal;
}
#endif /* HAL_USE_CRC */
/** @} */

82
os/hal/ports/AVR/XMEGA/LLD/CRCv1/hal_crc.h Normal file
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@ -0,0 +1,82 @@
/*
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 hal_crc.h
* @brief CRC Driver macros and structures.
*
* @addtogroup CRC
* @{
*/
#ifndef HAL_CRC_H
#define HAL_CRC_H
#include <stdint.h>
#include <stddef.h>
#if (HAL_USE_CRC == TRUE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
#include "hal_crc_lld.h"
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void crcInit(void);
void crcObjectInit(CRCDriver *crcp);
msg_t crcStart(CRCDriver *crcp, CRCConfig * config);
void crcStop(CRCDriver *crcp);
void crcReset(CRCDriver *crcp, crcreset_t rt);
/* @TODO: uint16_t crcComputeCRC16OnMemory(CRCDriver *crcp, uint8_t *src, size_t size); */
/* @TODO: uint32_t crcComputeCRC32OnMemory(CRCDriver *crcp, uint8_t *src, size_t size); */
/* @TODO: uint16_t crcComputeCRC16OnDMA(CRCDriver *crcp, uint8_t *src, size_t size); */
/* @TODO: uint32_t crcComputeCRC32OnDMA(CRCDriver *crcp, uint8_t *src, size_t size); */
uint16_t crcComputeCRC16OnData(CRCDriver *crcp, uint8_t *srcp, size_t size);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_CRC == TRUE */
#endif /* HAL_CRC_H */
/** @} */

2
os/hal/ports/AVR/XMEGA/LLD/CRCv1/xmega_crc.h
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@ -116,8 +116,6 @@ typedef struct {
} CHECKSUM3;
} xmega_crc_t;
/** @} */
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/