Diff: TARGET_KW24D/TOOLCHAIN_GCC_ARM/fsl_crc.h

Revision:

171:3a7713b1edbc

Parent:

145:64910690c574

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_KW24D/TOOLCHAIN_GCC_ARM/fsl_crc.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,192 @@
+/*
+ * Copyright (c) 2015-2016, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _FSL_CRC_H_
+#define _FSL_CRC_H_
+
+#include "fsl_common.h"
+
+/*!
+ * @addtogroup crc
+ * @{
+ */
+
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief CRC driver version. Version 2.0.1.
+ *
+ * Current version: 2.0.1
+ *
+ * Change log:
+ * - Version 2.0.1
+ *   - move DATA and DATALL macro definition from header file to source file
+ */
+#define FSL_CRC_DRIVER_VERSION (MAKE_VERSION(2, 0, 1))
+/*@}*/
+
+#ifndef CRC_DRIVER_CUSTOM_DEFAULTS
+/*! @brief Default configuration structure filled by CRC_GetDefaultConfig(). Use CRC16-CCIT-FALSE as defeault. */
+#define CRC_DRIVER_USE_CRC16_CCIT_FALSE_AS_DEFAULT 1
+#endif
+
+/*! @brief CRC bit width */
+typedef enum _crc_bits
+{
+    kCrcBits16 = 0U, /*!< Generate 16-bit CRC code  */
+    kCrcBits32 = 1U  /*!< Generate 32-bit CRC code  */
+} crc_bits_t;
+
+/*! @brief CRC result type */
+typedef enum _crc_result
+{
+    kCrcFinalChecksum = 0U,       /*!< CRC data register read value is the final checksum.
+                                      Reflect out and final xor protocol features are applied. */
+    kCrcIntermediateChecksum = 1U /*!< CRC data register read value is intermediate checksum (raw value).
+                                      Reflect out and final xor protocol feature are not applied.
+                                      Intermediate checksum can be used as a seed for CRC_Init()
+                                      to continue adding data to this checksum. */
+} crc_result_t;
+
+/*!
+* @brief CRC protocol configuration.
+*
+* This structure holds the configuration for the CRC protocol.
+*
+*/
+typedef struct _crc_config
+{
+    uint32_t polynomial;     /*!< CRC Polynomial, MSBit first.
+                                  Example polynomial: 0x1021 = 1_0000_0010_0001 = x^12+x^5+1 */
+    uint32_t seed;           /*!< Starting checksum value */
+    bool reflectIn;          /*!< Reflect bits on input. */
+    bool reflectOut;         /*!< Reflect bits on output. */
+    bool complementChecksum; /*!< True if the result shall be complement of the actual checksum. */
+    crc_bits_t crcBits;      /*!< Selects 16- or 32- bit CRC protocol. */
+    crc_result_t crcResult;  /*!< Selects final or intermediate checksum return from CRC_Get16bitResult() or
+                                CRC_Get32bitResult() */
+} crc_config_t;
+
+/*******************************************************************************
+ * API
+ ******************************************************************************/
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @brief Enables and configures the CRC peripheral module.
+ *
+ * This functions enables the clock gate in the Kinetis SIM module for the CRC peripheral.
+ * It also configures the CRC module and starts checksum computation by writing the seed.
+ *
+ * @param base CRC peripheral address.
+ * @param config CRC module configuration structure
+ */
+void CRC_Init(CRC_Type *base, const crc_config_t *config);
+
+/*!
+ * @brief Disables the CRC peripheral module.
+ *
+ * This functions disables the clock gate in the Kinetis SIM module for the CRC peripheral.
+ *
+ * @param base CRC peripheral address.
+ */
+static inline void CRC_Deinit(CRC_Type *base)
+{
+    /* gate clock */
+    CLOCK_DisableClock(kCLOCK_Crc0);
+}
+
+/*!
+ * @brief Loads default values to CRC protocol configuration structure.
+ *
+ * Loads default values to CRC protocol configuration structure. The default values are:
+ * @code
+ *   config->polynomial = 0x1021;
+ *   config->seed = 0xFFFF;
+ *   config->reflectIn = false;
+ *   config->reflectOut = false;
+ *   config->complementChecksum = false;
+ *   config->crcBits = kCrcBits16;
+ *   config->crcResult = kCrcFinalChecksum;
+ * @endcode
+ *
+ * @param config CRC protocol configuration structure
+ */
+void CRC_GetDefaultConfig(crc_config_t *config);
+
+/*!
+ * @brief Writes data to the CRC module.
+ *
+ * Writes input data buffer bytes to CRC data register.
+ * The configured type of transpose is applied.
+ *
+ * @param base CRC peripheral address.
+ * @param data Input data stream, MSByte in data[0].
+ * @param dataSize Size in bytes of the input data buffer.
+ */
+void CRC_WriteData(CRC_Type *base, const uint8_t *data, size_t dataSize);
+
+/*!
+ * @brief Reads 32-bit checksum from the CRC module.
+ *
+ * Reads CRC data register (intermediate or final checksum).
+ * The configured type of transpose and complement are applied.
+ *
+ * @param base CRC peripheral address.
+ * @return intermediate or final 32-bit checksum, after configured transpose and complement operations.
+ */
+uint32_t CRC_Get32bitResult(CRC_Type *base);
+
+/*!
+ * @brief Reads 16-bit checksum from the CRC module.
+ *
+ * Reads CRC data register (intermediate or final checksum).
+ * The configured type of transpose and complement are applied.
+ *
+ * @param base CRC peripheral address.
+ * @return intermediate or final 16-bit checksum, after configured transpose and complement operations.
+ */
+uint16_t CRC_Get16bitResult(CRC_Type *base);
+
+#if defined(__cplusplus)
+}
+#endif
+
+/*!
+ *@}
+ */
+
+#endif /* _FSL_CRC_H_ */