diff options
Diffstat (limited to 'ChibiOS_16.1.5/community/os/various/crcsw.h')
| -rw-r--r-- | ChibiOS_16.1.5/community/os/various/crcsw.h | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/ChibiOS_16.1.5/community/os/various/crcsw.h b/ChibiOS_16.1.5/community/os/various/crcsw.h deleted file mode 100644 index 4483a34..0000000 --- a/ChibiOS_16.1.5/community/os/various/crcsw.h +++ /dev/null @@ -1,215 +0,0 @@ -/* - ChibiOS - Copyright (C) 2015 Michael D. Spradling - - 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 crcsw.h - * @brief CRC software driver. - * - * @addtogroup CRC - * @{ - */ - -#include "hal.h" - -#if HAL_USE_CRC || defined(__DOXYGEN__) - -#if CRCSW_USE_CRC1 || defined(__DOXYGEN__) - -/*===========================================================================*/ -/* Driver pre-compile time settings. */ -/*===========================================================================*/ - -/** - * @name Configuration options - * @{ - */ -/** - * @brief CRC1 software driver enable switch. - * @details If set to @p TRUE the support for CRC1 is included. - * @note The default is @p FALSE - */ -#if !defined(CRCSW_USE_CRC1) || defined(__DOXYGEN__) -#define CRCSW_USE_CRC1 FALSE -#endif - -/** - * @brief Enables software CRC32 - */ -#if !defined(CRCSW_CRC32_TABLE) || defined(__DOXYGEN__) -#define CRCSW_CRC32_TABLE FALSE -#endif - -/** - * @brief Enables software CRC16 - */ -#if !defined(CRCSW_CRC16_TABLE) || defined(__DOXYGEN__) -#define CRCSW_CRC16_TABLE FALSE -#endif - -/*===========================================================================*/ -/* Derived constants and error checks. */ -/*===========================================================================*/ - -#if CRCSW_USE_CRC1 && CRC_USE_DMA -#error "Software CRC does not support DMA(CRC_USE_DMA)" -#endif - -#if CRCSW_CRC32_TABLE == FALSE && CRCSW_CRC16_TABLE == FALSE && \ - CRCSW_PROGRAMMABLE == FALSE -#error "At least one of CRCSW_PROGRAMMABLE, CRCSW_CRC32_TABLE, or CRCSW_CRC16_TABLE must be defined" -#endif - -/*===========================================================================*/ -/* Driver data structures and types. */ -/*===========================================================================*/ -/** - * @brief Type of a structure representing an CRC driver. - */ -typedef struct CRCDriver CRCDriver; - -/** - * @brief Driver configuration structure. - */ -typedef struct { - /** - * @brief The size of polynomial to be used for CRC. - */ - uint32_t poly_size; - /** - * @brief The coefficients of the polynomial to be used for CRC. - */ - uint32_t poly; - /** - * @brief The inital value - */ - uint32_t initial_val; - /** - * @brief The final XOR value - */ - uint32_t final_val; - /** - * @brief Reflect bit order data going into CRC - */ - bool reflect_data; - /** - * @brief Reflect bit order of final remainder - */ - bool reflect_remainder; - /* End of the mandatory fields.*/ - /** - * @brief The crc lookup table to use when calculating CRC. - */ - const uint32_t *table; -} CRCConfig; - - -/** - * @brief Structure representing an CRC driver. - */ -struct CRCDriver { - /** - * @brief Driver state. - */ - crcstate_t state; - /** - * @brief Current configuration data. - */ - const CRCConfig *config; -#if CRC_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__) - /** - * @brief Mutex protecting the peripheral. - */ - mutex_t mutex; -#endif /* CRC_USE_MUTUAL_EXCLUSION */ - /* End of the mandatory fields.*/ - /** - * @brief Current value of calculated CRC. - */ - uint32_t crc; -}; - -/*===========================================================================*/ -/* Driver macros. */ -/*===========================================================================*/ -#if CRCSW_CRC32_TABLE || defined(__DOXYGEN__) -/** - * @brief Configuration that represents CRC32 - */ -#define CRCSW_CRC32_TABLE_CONFIG (&crcsw_crc32_config) -#endif - -#if CRCSW_CRC16_TABLE || defined(__DOXYGEN__) -/** - * @brief Configuration that represents CRC16 - */ -#define CRCSW_CRC16_TABLE_CONFIG (&crcsw_crc16_config) -#endif - -/*===========================================================================*/ -/* Driver local definitions. */ -/*===========================================================================*/ - -/*===========================================================================*/ -/* Driver exported variables. */ -/*===========================================================================*/ - -/*===========================================================================*/ -/* Driver local variables and types. */ -/*===========================================================================*/ - -/*===========================================================================*/ -/* Driver local functions. */ -/*===========================================================================*/ - -/*===========================================================================*/ -/* Driver interrupt handlers. */ -/*===========================================================================*/ - -/*===========================================================================*/ -/* Driver exported functions. */ -/*===========================================================================*/ - -/*===========================================================================*/ -/* External declarations. */ -/*===========================================================================*/ - -extern CRCDriver CRCD1; - -#if CRCSW_CRC32_TABLE -extern const CRCConfig crcsw_crc32_config; -#endif - -#if CRCSW_CRC16_TABLE -extern const CRCConfig crcsw_crc16_config; -#endif - -#ifdef __cplusplus -extern "C" { -#endif - void crc_lld_init(void); - void crc_lld_start(CRCDriver *crcp); - void crc_lld_stop(CRCDriver *crcp); - void crc_lld_reset(CRCDriver *crcp); - uint32_t crc_lld_calc(CRCDriver *crcp, size_t n, const void *buf); -#ifdef __cplusplus -} -#endif - -#endif /* CRCSW_USE_CRC1 */ - -#endif /* HAL_USE_CRC */ - -/** @} */ |