summaryrefslogtreecommitdiff
path: root/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_crc.c
diff options
context:
space:
mode:
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_crc.c')
-rw-r--r--tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_crc.c506
1 files changed, 506 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_crc.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_crc.c
new file mode 100644
index 0000000000..ba5e364b15
--- /dev/null
+++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_crc.c
@@ -0,0 +1,506 @@
+/**
+ ******************************************************************************
+ * @file stm32f0xx_hal_crc.c
+ * @author MCD Application Team
+ * @version V1.2.0
+ * @date 11-December-2014
+ * @brief CRC HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Cyclic Redundancy Check (CRC) peripheral:
+ * + Initialization and de-initialization functions
+ * + Peripheral Control functions
+ * + Peripheral State functions
+ *
+ @verbatim
+ ===============================================================================
+ ##### How to use this driver #####
+ ===============================================================================
+ [..]
+ (#) Enable CRC AHB clock using __CRC_CLK_ENABLE();
+ (#) Initialize CRC calculator
+ (++)specify generating polynomial (IP default or non-default one)
+ (++)specify initialization value (IP default or non-default one)
+ (++)specify input data format
+ (++)specify input or output data inversion mode if any
+ (#) Use HAL_CRC_Accumulate() function to compute the CRC value of the
+ input data buffer starting with the previously computed CRC as
+ initialization value
+ (#) Use HAL_CRC_Calculate() function to compute the CRC value of the
+ input data buffer starting with the defined initialization value
+ (default or non-default) to initiate CRC calculation
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. Neither the name of STMicroelectronics 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.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_hal.h"
+
+/** @addtogroup STM32F0xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup CRC CRC HAL module driver
+ * @brief CRC HAL module driver.
+ * @{
+ */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup CRC_Private_Functions CRC Private Functions
+ * @{
+ */
+static uint32_t CRC_Handle_8(CRC_HandleTypeDef *hcrc, uint8_t pBuffer[], uint32_t BufferLength);
+static uint32_t CRC_Handle_16(CRC_HandleTypeDef *hcrc, uint16_t pBuffer[], uint32_t BufferLength);
+/**
+ * @}
+ */
+
+/* Exported functions ---------------------------------------------------------*/
+/** @defgroup CRC_Exported_Functions CRC Exported Functions
+ * @{
+ */
+
+/** @defgroup CRC_Exported_Functions_Group1 Initialization/de-initialization functions
+ * @brief Initialization and Configuration functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization and Configuration functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Initialize the CRC according to the specified parameters
+ in the CRC_InitTypeDef and create the associated handle
+ (+) DeInitialize the CRC peripheral
+ (+) Initialize the CRC MSP
+ (+) DeInitialize CRC MSP
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initializes the CRC according to the specified
+ * parameters in the CRC_InitTypeDef and creates the associated handle.
+ * @param hcrc: CRC handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc)
+{
+ /* Check the CRC handle allocation */
+ if(hcrc == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
+
+ if(hcrc->State == HAL_CRC_STATE_RESET)
+ {
+ /* Init the low level hardware */
+ HAL_CRC_MspInit(hcrc);
+ }
+
+ hcrc->State = HAL_CRC_STATE_BUSY;
+
+ /* Extended initialization: if programmable polynomial feature is
+ applicable to device, set default or non-default generating
+ polynomial according to hcrc->Init parameters.
+ If feature is non-applicable to device in use, HAL_CRCEx_Init straight
+ away reports HAL_OK. */
+ if (HAL_CRCEx_Init(hcrc) != HAL_OK)
+ {
+ return HAL_ERROR;
+ }
+
+ /* check whether or not non-default CRC initial value has been
+ * picked up by user */
+ assert_param(IS_DEFAULT_INIT_VALUE(hcrc->Init.DefaultInitValueUse));
+ if (hcrc->Init.DefaultInitValueUse == DEFAULT_INIT_VALUE_ENABLE)
+ {
+ WRITE_REG(hcrc->Instance->INIT, DEFAULT_CRC_INITVALUE);
+ }
+ else
+ {
+ WRITE_REG(hcrc->Instance->INIT, hcrc->Init.InitValue);
+ }
+
+
+ /* set input data inversion mode */
+ assert_param(IS_CRC_INPUTDATA_INVERSION_MODE(hcrc->Init.InputDataInversionMode));
+ MODIFY_REG(hcrc->Instance->CR, CRC_CR_REV_IN, hcrc->Init.InputDataInversionMode);
+
+ /* set output data inversion mode */
+ assert_param(IS_CRC_OUTPUTDATA_INVERSION_MODE(hcrc->Init.OutputDataInversionMode));
+ MODIFY_REG(hcrc->Instance->CR, CRC_CR_REV_OUT, hcrc->Init.OutputDataInversionMode);
+
+ /* makes sure the input data format (bytes, halfwords or words stream)
+ * is properly specified by user */
+ assert_param(IS_CRC_INPUTDATA_FORMAT(hcrc->InputDataFormat));
+
+ /* Change CRC peripheral state */
+ hcrc->State = HAL_CRC_STATE_READY;
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitializes the CRC peripheral.
+ * @param hcrc: CRC handle
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_CRC_DeInit(CRC_HandleTypeDef *hcrc)
+{
+ /* Check the CRC handle allocation */
+ if(hcrc == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_CRC_ALL_INSTANCE(hcrc->Instance));
+
+ /* Check the CRC peripheral state */
+ if(hcrc->State == HAL_CRC_STATE_BUSY)
+ {
+ return HAL_BUSY;
+ }
+
+ /* Change CRC peripheral state */
+ hcrc->State = HAL_CRC_STATE_BUSY;
+
+ /* DeInit the low level hardware */
+ HAL_CRC_MspDeInit(hcrc);
+
+ /* Change CRC peripheral state */
+ hcrc->State = HAL_CRC_STATE_RESET;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hcrc);
+
+ /* Return function status */
+ return HAL_OK;
+}
+
+/**
+ * @brief Initializes the CRC MSP.
+ * @param hcrc: CRC handle
+ * @retval None
+ */
+__weak void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_CRC_MspInit can be implemented in the user file
+ */
+}
+
+/**
+ * @brief DeInitializes the CRC MSP.
+ * @param hcrc: CRC handle
+ * @retval None
+ */
+__weak void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_CRC_MspDeInit can be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Exported_Functions_Group2 Peripheral Control functions
+ * @brief management functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral Control functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer
+ using combination of the previous CRC value and the new one.
+
+ or
+
+ (+) Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer
+ independently of the previous CRC value.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer
+ * starting with the previously computed CRC as initialization value.
+ * @param hcrc: CRC handle
+ * @param pBuffer: pointer to the input data buffer, exact input data format is
+ * provided by hcrc->InputDataFormat.
+ * @param BufferLength: input data buffer length
+ * @retval uint32_t CRC (returned value LSBs for CRC shorter than 32 bits)
+ */
+uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
+{
+ uint32_t index = 0; /* CRC input data buffer index */
+ uint32_t temp = 0; /* CRC output (read from hcrc->Instance->DR register) */
+
+ /* Process locked */
+ __HAL_LOCK(hcrc);
+
+ /* Change CRC peripheral state */
+ hcrc->State = HAL_CRC_STATE_BUSY;
+
+ switch (hcrc->InputDataFormat)
+ {
+ case CRC_INPUTDATA_FORMAT_WORDS:
+ /* Enter Data to the CRC calculator */
+ for(index = 0; index < BufferLength; index++)
+ {
+ hcrc->Instance->DR = pBuffer[index];
+ }
+ temp = hcrc->Instance->DR;
+ break;
+
+ case CRC_INPUTDATA_FORMAT_BYTES:
+ temp = CRC_Handle_8(hcrc, (uint8_t*)pBuffer, BufferLength);
+ break;
+
+ case CRC_INPUTDATA_FORMAT_HALFWORDS:
+ temp = CRC_Handle_16(hcrc, (uint16_t*)pBuffer, BufferLength);
+ break;
+
+ default:
+ break;
+ }
+
+ /* Change CRC peripheral state */
+ hcrc->State = HAL_CRC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hcrc);
+
+ /* Return the CRC computed value */
+ return temp;
+}
+
+
+/**
+ * @brief Compute the 7, 8, 16 or 32-bit CRC value of an 8, 16 or 32-bit data buffer
+ * starting with hcrc->Instance->INIT as initialization value.
+ * @param hcrc: CRC handle
+ * @param pBuffer: pointer to the input data buffer, exact input data format is
+ * provided by hcrc->InputDataFormat.
+ * @param BufferLength: input data buffer length
+ * @retval uint32_t CRC (returned value LSBs for CRC shorter than 32 bits)
+ */
+uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength)
+{
+ uint32_t index = 0; /* CRC input data buffer index */
+ uint32_t temp = 0; /* CRC output (read from hcrc->Instance->DR register) */
+
+ /* Process locked */
+ __HAL_LOCK(hcrc);
+
+ /* Change CRC peripheral state */
+ hcrc->State = HAL_CRC_STATE_BUSY;
+
+ /* Reset CRC Calculation Unit (hcrc->Instance->INIT is
+ * written in hcrc->Instance->DR) */
+ __HAL_CRC_DR_RESET(hcrc);
+
+ switch (hcrc->InputDataFormat)
+ {
+ case CRC_INPUTDATA_FORMAT_WORDS:
+ /* Enter 32-bit input data to the CRC calculator */
+ for(index = 0; index < BufferLength; index++)
+ {
+ hcrc->Instance->DR = pBuffer[index];
+ }
+ temp = hcrc->Instance->DR;
+ break;
+
+ case CRC_INPUTDATA_FORMAT_BYTES:
+ /* Specific 8-bit input data handling */
+ temp = CRC_Handle_8(hcrc, (uint8_t*)pBuffer, BufferLength);
+ break;
+
+ case CRC_INPUTDATA_FORMAT_HALFWORDS:
+ /* Specific 16-bit input data handling */
+ temp = CRC_Handle_16(hcrc, (uint16_t*)pBuffer, BufferLength);
+ break;
+
+ default:
+ break;
+ }
+
+ /* Change CRC peripheral state */
+ hcrc->State = HAL_CRC_STATE_READY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hcrc);
+
+ /* Return the CRC computed value */
+ return temp;
+}
+/**
+ * @}
+ */
+
+/** @defgroup CRC_Exported_Functions_Group3 Peripheral State functions
+ * @brief Peripheral State functions.
+ *
+@verbatim
+ ===============================================================================
+ ##### Peripheral State functions #####
+ ===============================================================================
+ [..]
+ This subsection permits to get in run-time the status of the peripheral
+ and the data flow.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Returns the CRC state.
+ * @param hcrc: CRC handle
+ * @retval HAL state
+ */
+HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc)
+{
+ return hcrc->State;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup CRC_Private_Functions CRC Private Functions
+ * @{
+ */
+/**
+ * @brief Enter 8-bit input data to the CRC calculator.
+ * Specific data handling to optimize processing time.
+ * @param hcrc: CRC handle
+ * @param pBuffer: pointer to the input data buffer
+ * @param BufferLength: input data buffer length
+ * @retval uint32_t CRC (returned value LSBs for CRC shorter than 32 bits)
+ */
+static uint32_t CRC_Handle_8(CRC_HandleTypeDef *hcrc, uint8_t pBuffer[], uint32_t BufferLength)
+{
+ uint32_t i = 0; /* input data buffer index */
+
+ /* Processing time optimization: 4 bytes are entered in a row with a single word write,
+ * last bytes must be carefully fed to the CRC calculator to ensure a correct type
+ * handling by the IP */
+ for(i = 0; i < (BufferLength/4); i++)
+ {
+ hcrc->Instance->DR = ((uint32_t)pBuffer[4*i]<<24) | ((uint32_t)pBuffer[4*i+1]<<16) | ((uint32_t)pBuffer[4*i+2]<<8) | (uint32_t)pBuffer[4*i+3];
+ }
+ /* last bytes specific handling */
+ if ((BufferLength%4) != 0)
+ {
+ if (BufferLength%4 == 1)
+ {
+ *(uint8_t*) (&hcrc->Instance->DR) = pBuffer[4*i];
+ }
+ if (BufferLength%4 == 2)
+ {
+ *(uint16_t*) (&hcrc->Instance->DR) = ((uint16_t)pBuffer[4*i]<<8) | (uint16_t)pBuffer[4*i+1];
+ }
+ if (BufferLength%4 == 3)
+ {
+ *(uint16_t*) (&hcrc->Instance->DR) = ((uint16_t)pBuffer[4*i]<<8) | (uint16_t)pBuffer[4*i+1];
+ *(uint8_t*) (&hcrc->Instance->DR) = pBuffer[4*i+2];
+ }
+ }
+
+ /* Return the CRC computed value */
+ return hcrc->Instance->DR;
+}
+
+
+
+/**
+ * @brief Enter 16-bit input data to the CRC calculator.
+ * Specific data handling to optimize processing time.
+ * @param hcrc: CRC handle
+ * @param pBuffer: pointer to the input data buffer
+ * @param BufferLength: input data buffer length
+ * @retval uint32_t CRC (returned value LSBs for CRC shorter than 32 bits)
+ */
+static uint32_t CRC_Handle_16(CRC_HandleTypeDef *hcrc, uint16_t pBuffer[], uint32_t BufferLength)
+{
+ uint32_t i = 0; /* input data buffer index */
+
+ /* Processing time optimization: 2 HalfWords are entered in a row with a single word write,
+ * in case of odd length, last HalfWord must be carefully fed to the CRC calculator to ensure
+ * a correct type handling by the IP */
+ for(i = 0; i < (BufferLength/2); i++)
+ {
+ hcrc->Instance->DR = (pBuffer[2*i]<<16) | pBuffer[2*i+1];
+ }
+ if ((BufferLength%2) != 0)
+ {
+ *(uint16_t*) (&hcrc->Instance->DR) = pBuffer[2*i];
+ }
+
+ /* Return the CRC computed value */
+ return hcrc->Instance->DR;
+}
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+#endif /* HAL_CRC_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-28 18:34:35 +0000