Clean up crc16.[ch]

right/src/buspal/crc16.c

@@ -1,70 +1,6 @@
 #include "bootloader_common.h"
 #include "crc16.h"
 
-#if !defined(BOOTLOADER_HOST)
-#include "fsl_device_registers.h"
-#include "utilities/fsl_rtos_abstraction.h"
-#endif // !BOOTLOADER_HOST
-
-#if !defined(BOOTLOADER_HOST) && FSL_FEATURE_SOC_CRC_COUNT && !defined(BL_TARGET_RAM)
-#include "fsl_crc.h"
-
-/* Table of base addresses for crc instances. */
-static CRC_Type *const g_crcBase[1] = CRC_BASE_PTRS;
-
-void crc16_init(crc16_data_t *crc16Config)
-{
-    assert(crc16Config);
-
-    crc16Config->currentCrc = 0x0000U;
-}
-
-void crc16_update(crc16_data_t *crc16Config, const uint8_t *src, uint32_t lengthInBytes)
-{
-    assert(crc16Config);
-    assert(src);
-
-    crc_config_t crcUserConfigPtr;
-
-    CRC_GetDefaultConfig(&crcUserConfigPtr);
-
-    crcUserConfigPtr.crcBits = kCrcBits16;
-    crcUserConfigPtr.seed = crc16Config->currentCrc;
-    crcUserConfigPtr.polynomial = 0x1021U;
-    crcUserConfigPtr.complementChecksum = false;
-    crcUserConfigPtr.reflectIn = false;
-    crcUserConfigPtr.reflectOut = false;
-
-    // Init CRC module and then run it
-    //! Note: We must init CRC module here, As we may seperate one crc calculation into several times
-    //! Note: It is better to use lock to ensure the integrity of current updating operation of crc calculation
-    //        in case crc module is shared by multiple crc updating requests at the same time
-    if (lengthInBytes)
-    {
-        lock_acquire();
-        CRC_Init(g_crcBase[0], &crcUserConfigPtr);
-        CRC_WriteData(g_crcBase[0], src, lengthInBytes);
-        crcUserConfigPtr.seed = CRC_Get16bitResult(g_crcBase[0]);
-        lock_release();
-    }
-
-    crc16Config->currentCrc = crcUserConfigPtr.seed;
-}
-
-void crc16_finalize(crc16_data_t *crc16Config, uint16_t *hash)
-{
-    assert(crc16Config);
-    assert(hash);
-
-    *hash = crc16Config->currentCrc;
-
-    // De-init CRC module when we complete a full crc calculation
-    CRC_Deinit(g_crcBase[0]);
-}
-#else
-////////////////////////////////////////////////////////////////////////////////
-// Code
-////////////////////////////////////////////////////////////////////////////////
 void crc16_init(crc16_data_t *crc16Config)
 {
     assert(crc16Config);
@@ -107,4 +43,3 @@ void crc16_finalize(crc16_data_t *crc16Config, uint16_t *hash)
 
     *hash = crc16Config->currentCrc;
 }
-#endif

right/src/buspal/crc16.h

@@ -1,56 +1,23 @@
-#ifndef _CRC16_H_
+#ifndef __CRC16_H__
-#define _CRC16_H_
+#define __CRC16_H__
 
-#include <stdint.h>
+typedef struct Crc16Data {
-
+    uint16_t currentCrc;
-//! @addtogroup crc16
-//! @{
-
-////////////////////////////////////////////////////////////////////////////////
-// Definitions
-////////////////////////////////////////////////////////////////////////////////
-
-//! @brief State information for the CRC16 algorithm.
-typedef struct Crc16Data
-{
-    uint16_t currentCrc; //!< Current CRC value.
 } crc16_data_t;
 
-////////////////////////////////////////////////////////////////////////////////
-// API
-////////////////////////////////////////////////////////////////////////////////
-
-#if __cplusplus
-extern "C" {
-#endif
-
-//! @name CRC16
-//@{
-
 //! @brief Initializes the parameters of the crc function, must be called first.
-//!
 //! @param crc16Config Instantiation of the data structure of type crc16_data_t.
 void crc16_init(crc16_data_t *crc16Config);
 
 //! @brief A "running" crc calculator that updates the crc value after each call.
-//!
 //! @param crc16Config Instantiation of the data structure of type crc16_data_t.
 //! @param src Pointer to the source buffer of data.
 //! @param lengthInBytes The length, given in bytes (not words or long-words).
 void crc16_update(crc16_data_t *crc16Config, const uint8_t *src, uint32_t lengthInBytes);
 
 //! @brief Calculates the final crc value, padding with zeros if necessary, must be called last.
-//!
 //! @param crc16Config Instantiation of the data structure of type crc16_data_t.
 //! @param hash Pointer to the value returned for the final calculated crc value.
 void crc16_finalize(crc16_data_t *crc16Config, uint16_t *hash);
 
-//@}
-
-#if __cplusplus
-}
-#endif
-
-//! @}
-
 #endif