Stuart Northfield
mbed library sources
Fork of
mbed-src
by 
mbed official
Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/stm32f4xx_hal_hash.c
- Revision:
- 384:ef87175507f1
- Parent:
- 383:0564d9840d0d
- Child:
- 385:be64abf45658
--- a/targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/stm32f4xx_hal_hash.c Mon Nov 03 11:00:07 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1826 +0,0 @@
-/**
- ******************************************************************************
- * @file stm32f4xx_hal_hash.c
- * @author MCD Application Team
- * @version V1.1.0
- * @date 19-June-2014
- * @brief HASH HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of the HASH peripheral:
- * + Initialization and de-initialization functions
- * + HASH/HMAC Processing functions by algorithm using polling mode
- * + HASH/HMAC functions by algorithm using interrupt mode
- * + HASH/HMAC functions by algorithm using DMA mode
- * + Peripheral State functions
- *
- @verbatim
- ==============================================================================
- ##### How to use this driver #####
- ==============================================================================
- [..]
- The HASH HAL driver can be used as follows:
- (#)Initialize the HASH low level resources by implementing the HAL_HASH_MspInit():
- (##) Enable the HASH interface clock using __HASH_CLK_ENABLE()
- (##) In case of using processing APIs based on interrupts (e.g. HAL_HMAC_SHA1_Start_IT())
- (+++) Configure the HASH interrupt priority using HAL_NVIC_SetPriority()
- (+++) Enable the HASH IRQ handler using HAL_NVIC_EnableIRQ()
- (+++) In HASH IRQ handler, call HAL_HASH_IRQHandler()
- (##) In case of using DMA to control data transfer (e.g. HAL_HMAC_SHA1_Start_DMA())
- (+++) Enable the DMAx interface clock using __DMAx_CLK_ENABLE()
- (+++) Configure and enable one DMA stream one for managing data transfer from
- memory to peripheral (input stream). Managing data transfer from
- peripheral to memory can be performed only using CPU
- (+++) Associate the initialized DMA handle to the HASH DMA handle
- using __HAL_LINKDMA()
- (+++) Configure the priority and enable the NVIC for the transfer complete
- interrupt on the DMA Stream using HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ()
- (#)Initialize the HASH HAL using HAL_HASH_Init(). This function configures mainly:
- (##) The data type: 1-bit, 8-bit, 16-bit and 32-bit.
- (##) For HMAC, the encryption key.
- (##) For HMAC, the key size used for encryption.
- (#)Three processing functions are available:
- (##) Polling mode: processing APIs are blocking functions
- i.e. they process the data and wait till the digest computation is finished
- e.g. HAL_HASH_SHA1_Start()
- (##) Interrupt mode: encryption and decryption APIs are not blocking functions
- i.e. they process the data under interrupt
- e.g. HAL_HASH_SHA1_Start_IT()
- (##) DMA mode: processing APIs are not blocking functions and the CPU is
- not used for data transfer i.e. the data transfer is ensured by DMA
- e.g. HAL_HASH_SHA1_Start_DMA()
- (#)When the processing function is called at first time after HAL_HASH_Init()
- the HASH peripheral is initialized and processes the buffer in input.
- After that, the digest computation is started.
- When processing multi-buffer use the accumulate function to write the
- data in the peripheral without starting the digest computation. In last
- buffer use the start function to input the last buffer ans start the digest
- computation.
- (##) e.g. HAL_HASH_SHA1_Accumulate() : write 1st data buffer in the peripheral without starting the digest computation
- (##) write (n-1)th data buffer in the peripheral without starting the digest computation
- (##) HAL_HASH_SHA1_Start() : write (n)th data buffer in the peripheral and start the digest computation
- (#)In HMAC mode, there is no Accumulate API. Only Start API is available.
- (#)In case of using DMA, call the DMA start processing e.g. HAL_HASH_SHA1_Start_DMA().
- After that, call the finish function in order to get the digest value
- e.g. HAL_HASH_SHA1_Finish()
- (#)Call HAL_HASH_DeInit() to deinitialize the HASH peripheral.
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© 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 "stm32f4xx_hal.h"
-
-/** @addtogroup STM32F4xx_HAL_Driver
- * @{
- */
-
-/** @defgroup HASH
- * @brief HASH HAL module driver.
- * @{
- */
-
-#ifdef HAL_HASH_MODULE_ENABLED
-
-#if defined(STM32F415xx) || defined(STM32F417xx) || defined(STM32F437xx) || defined(STM32F439xx)
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-static void HASH_DMAXferCplt(DMA_HandleTypeDef *hdma);
-static void HASH_DMAError(DMA_HandleTypeDef *hdma);
-static void HASH_GetDigest(uint8_t *pMsgDigest, uint8_t Size);
-static void HASH_WriteData(uint8_t *pInBuffer, uint32_t Size);
-
-/* Private functions ---------------------------------------------------------*/
-
-/** @defgroup HASH_Private_Functions
- * @{
- */
-
-/** @defgroup HASH_Group1 Initialization and de-initialization functions
- * @brief Initialization and Configuration functions.
- *
-@verbatim
- ===============================================================================
- ##### Initialization and de-initialization functions #####
- ===============================================================================
- [..] This section provides functions allowing to:
- (+) Initialize the HASH according to the specified parameters
- in the HASH_InitTypeDef and creates the associated handle.
- (+) DeInitialize the HASH peripheral.
- (+) Initialize the HASH MSP.
- (+) DeInitialize HASH MSP.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the HASH according to the specified parameters in the
- HASH_HandleTypeDef and creates the associated handle.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_Init(HASH_HandleTypeDef *hhash)
-{
- /* Check the hash handle allocation */
- if(hhash == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Check the parameters */
- assert_param(IS_HASH_DATATYPE(hhash->Init.DataType));
-
- if(hhash->State == HAL_HASH_STATE_RESET)
- {
- /* Init the low level hardware */
- HAL_HASH_MspInit(hhash);
- }
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Reset HashInCount, HashBuffSize and HashITCounter */
- hhash->HashInCount = 0;
- hhash->HashBuffSize = 0;
- hhash->HashITCounter = 0;
-
- /* Set the data type */
- HASH->CR |= (uint32_t) (hhash->Init.DataType);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Set the default HASH phase */
- hhash->Phase = HAL_HASH_PHASE_READY;
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief DeInitializes the HASH peripheral.
- * @note This API must be called before starting a new processing.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_DeInit(HASH_HandleTypeDef *hhash)
-{
- /* Check the HASH handle allocation */
- if(hhash == NULL)
- {
- return HAL_ERROR;
- }
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Set the default HASH phase */
- hhash->Phase = HAL_HASH_PHASE_READY;
-
- /* Reset HashInCount, HashBuffSize and HashITCounter */
- hhash->HashInCount = 0;
- hhash->HashBuffSize = 0;
- hhash->HashITCounter = 0;
-
- /* DeInit the low level hardware */
- HAL_HASH_MspDeInit(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_RESET;
-
- /* Release Lock */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH MSP.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval None
- */
-__weak void HAL_HASH_MspInit(HASH_HandleTypeDef *hhash)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_HASH_MspInit could be implemented in the user file
- */
-}
-
-/**
- * @brief DeInitializes HASH MSP.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval None
- */
-__weak void HAL_HASH_MspDeInit(HASH_HandleTypeDef *hhash)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_HASH_MspDeInit could be implemented in the user file
- */
-}
-
-/**
- * @brief Input data transfer complete callback.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval None
- */
- __weak void HAL_HASH_InCpltCallback(HASH_HandleTypeDef *hhash)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_HASH_InCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Data transfer Error callback.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval None
- */
- __weak void HAL_HASH_ErrorCallback(HASH_HandleTypeDef *hhash)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_HASH_ErrorCallback could be implemented in the user file
- */
-}
-
-/**
- * @brief Digest computation complete callback. It is used only with interrupt.
- * @note This callback is not relevant with DMA.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval None
- */
- __weak void HAL_HASH_DgstCpltCallback(HASH_HandleTypeDef *hhash)
-{
- /* NOTE: This function Should not be modified, when the callback is needed,
- the HAL_HASH_DgstCpltCallback could be implemented in the user file
- */
-}
-
-/**
- * @}
- */
-
-/** @defgroup HASH_Group2 HASH processing functions using polling mode
- * @brief processing functions using polling mode
- *
-@verbatim
- ===============================================================================
- ##### HASH processing using polling mode functions#####
- ===============================================================================
- [..] This section provides functions allowing to calculate in polling mode
- the hash value using one of the following algorithms:
- (+) MD5
- (+) SHA1
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the HASH peripheral in MD5 mode then processes pInBuffer.
- The digest is available in pOutBuffer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is multiple of 64 bytes, appending the input buffer is possible.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware
- * and appending the input buffer is no more possible.
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 16 bytes.
- * @param Timeout: Timeout value
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_MD5_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the MD5 mode and reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_AlgoSelection_MD5 | HASH_CR_INIT;
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Write input buffer in data register */
- HASH_WriteData(pInBuffer, Size);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
-
- /* Read the message digest */
- HASH_GetDigest(pOutBuffer, 16);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH peripheral in MD5 mode then writes the pInBuffer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is multiple of 64 bytes, appending the input buffer is possible.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware
- * and appending the input buffer is no more possible.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_MD5_Accumulate(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
-{
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the MD5 mode and reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_AlgoSelection_MD5 | HASH_CR_INIT;
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Write input buffer in data register */
- HASH_WriteData(pInBuffer, Size);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH peripheral in SHA1 mode then processes pInBuffer.
- The digest is available in pOutBuffer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
- * @param Timeout: Timeout value
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_SHA1_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the SHA1 mode and reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_AlgoSelection_SHA1 | HASH_CR_INIT;
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Write input buffer in data register */
- HASH_WriteData(pInBuffer, Size);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
-
- /* Read the message digest */
- HASH_GetDigest(pOutBuffer, 20);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH peripheral in SHA1 mode then processes pInBuffer.
- The digest is available in pOutBuffer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_SHA1_Accumulate(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
-{
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the SHA1 mode and reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_AlgoSelection_SHA1 | HASH_CR_INIT;
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Write input buffer in data register */
- HASH_WriteData(pInBuffer, Size);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @}
- */
-
-/** @defgroup HASH_Group3 HASH processing functions using interrupt mode
- * @brief processing functions using interrupt mode.
- *
-@verbatim
- ===============================================================================
- ##### HASH processing using interrupt mode functions #####
- ===============================================================================
- [..] This section provides functions allowing to calculate in interrupt mode
- the hash value using one of the following algorithms:
- (+) MD5
- (+) SHA1
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the HASH peripheral in MD5 mode then processes pInBuffer.
- * The digest is available in pOutBuffer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pOutBuffer: Pointer to the Output buffer (hashed buffer).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 16 bytes.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_MD5_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer)
-{
- uint32_t inputaddr;
- uint32_t outputaddr;
- uint32_t buffercounter;
- uint32_t inputcounter;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- if(hhash->HashITCounter == 0)
- {
- hhash->HashITCounter = 1;
- }
- else
- {
- hhash->HashITCounter = 0;
- }
- if(hhash->State == HAL_HASH_STATE_READY)
- {
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- hhash->HashInCount = Size;
- hhash->pHashInBuffPtr = pInBuffer;
- hhash->pHashOutBuffPtr = pOutBuffer;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the SHA1 mode */
- HASH->CR |= HASH_AlgoSelection_MD5;
- /* Reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_CR_INIT;
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Enable Interrupts */
- HASH->IMR = (HASH_IT_DINI | HASH_IT_DCI);
-
- /* Return function status */
- return HAL_OK;
- }
- if(__HAL_HASH_GET_FLAG(HASH_FLAG_DCIS))
- {
- outputaddr = (uint32_t)hhash->pHashOutBuffPtr;
- /* Read the Output block from the Output FIFO */
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[0]);
- outputaddr+=4;
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[1]);
- outputaddr+=4;
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[2]);
- outputaddr+=4;
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[3]);
-
- if(hhash->HashInCount == 0)
- {
- /* Disable Interrupts */
- HASH->IMR = 0;
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
- /* Call digest computation complete callback */
- HAL_HASH_DgstCpltCallback(hhash);
- }
- }
- if(__HAL_HASH_GET_FLAG(HASH_FLAG_DINIS))
- {
- if(hhash->HashInCount > 64)
- {
- inputaddr = (uint32_t)hhash->pHashInBuffPtr;
- /* Write the Input block in the Data IN register */
- for(buffercounter = 0; buffercounter < 64; buffercounter+=4)
- {
- HASH->DIN = *(uint32_t*)inputaddr;
- }
- if(hhash->HashITCounter == 0)
- {
- HASH->DIN = *(uint32_t*)inputaddr;
-
- if(hhash->HashInCount >= 68)
- {
- /* Decrement buffer counter */
- hhash->HashInCount -= 68;
- hhash->pHashInBuffPtr+= 68;
- }
- else
- {
- hhash->HashInCount -= 64;
- }
- }
- else
- {
- /* Decrement buffer counter */
- hhash->HashInCount -= 64;
- hhash->pHashInBuffPtr+= 64;
- }
- }
- else
- {
- /* Get the buffer address */
- inputaddr = (uint32_t)hhash->pHashInBuffPtr;
- /* Get the buffer counter */
- inputcounter = hhash->HashInCount;
- /* Disable Interrupts */
- HASH->IMR &= ~(HASH_IT_DINI);
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(inputcounter);
-
- if((inputcounter > 4) && (inputcounter%4))
- {
- inputcounter = (inputcounter+4-inputcounter%4);
- }
-
- /* Write the Input block in the Data IN register */
- for(buffercounter = 0; buffercounter < inputcounter/4; buffercounter++)
- {
- HASH->DIN = *(uint32_t*)inputaddr;
- inputaddr+=4;
- }
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
- /* Reset buffer counter */
- hhash->HashInCount = 0;
- }
- /* Call Input data transfer complete callback */
- HAL_HASH_InCpltCallback(hhash);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH peripheral in SHA1 mode then processes pInBuffer.
- * The digest is available in pOutBuffer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_SHA1_Start_IT(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer)
-{
- uint32_t inputaddr;
- uint32_t outputaddr;
- uint32_t buffercounter;
- uint32_t inputcounter;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- if(hhash->HashITCounter == 0)
- {
- hhash->HashITCounter = 1;
- }
- else
- {
- hhash->HashITCounter = 0;
- }
- if(hhash->State == HAL_HASH_STATE_READY)
- {
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- hhash->HashInCount = Size;
- hhash->pHashInBuffPtr = pInBuffer;
- hhash->pHashOutBuffPtr = pOutBuffer;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the SHA1 mode */
- HASH->CR |= HASH_AlgoSelection_SHA1;
- /* Reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_CR_INIT;
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Enable Interrupts */
- HASH->IMR = (HASH_IT_DINI | HASH_IT_DCI);
-
- /* Return function status */
- return HAL_OK;
- }
- if(__HAL_HASH_GET_FLAG(HASH_FLAG_DCIS))
- {
- outputaddr = (uint32_t)hhash->pHashOutBuffPtr;
- /* Read the Output block from the Output FIFO */
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[0]);
- outputaddr+=4;
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[1]);
- outputaddr+=4;
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[2]);
- outputaddr+=4;
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[3]);
- outputaddr+=4;
- *(uint32_t*)(outputaddr) = __REV(HASH->HR[4]);
- if(hhash->HashInCount == 0)
- {
- /* Disable Interrupts */
- HASH->IMR = 0;
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
- /* Call digest computation complete callback */
- HAL_HASH_DgstCpltCallback(hhash);
- }
- }
- if(__HAL_HASH_GET_FLAG(HASH_FLAG_DINIS))
- {
- if(hhash->HashInCount > 64)
- {
- inputaddr = (uint32_t)hhash->pHashInBuffPtr;
- /* Write the Input block in the Data IN register */
- for(buffercounter = 0; buffercounter < 64; buffercounter+=4)
- {
- HASH->DIN = *(uint32_t*)inputaddr;
- inputaddr+=4;
- }
- if(hhash->HashITCounter == 0)
- {
- HASH->DIN = *(uint32_t*)inputaddr;
-
- if(hhash->HashInCount >= 68)
- {
- /* Decrement buffer counter */
- hhash->HashInCount -= 68;
- hhash->pHashInBuffPtr+= 68;
- }
- else
- {
- hhash->HashInCount -= 64;
- }
- }
- else
- {
- /* Decrement buffer counter */
- hhash->HashInCount -= 64;
- hhash->pHashInBuffPtr+= 64;
- }
- }
- else
- {
- /* Get the buffer address */
- inputaddr = (uint32_t)hhash->pHashInBuffPtr;
- /* Get the buffer counter */
- inputcounter = hhash->HashInCount;
- /* Disable Interrupts */
- HASH->IMR &= ~(HASH_IT_DINI);
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(inputcounter);
-
- if((inputcounter > 4) && (inputcounter%4))
- {
- inputcounter = (inputcounter+4-inputcounter%4);
- }
-
- /* Write the Input block in the Data IN register */
- for(buffercounter = 0; buffercounter < inputcounter/4; buffercounter++)
- {
- HASH->DIN = *(uint32_t*)inputaddr;
- inputaddr+=4;
- }
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
- /* Reset buffer counter */
- hhash->HashInCount = 0;
- }
- /* Call Input data transfer complete callback */
- HAL_HASH_InCpltCallback(hhash);
- }
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief This function handles HASH interrupt request.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval None
- */
-void HAL_HASH_IRQHandler(HASH_HandleTypeDef *hhash)
-{
- switch(HASH->CR & HASH_CR_ALGO)
- {
- case HASH_AlgoSelection_MD5:
- HAL_HASH_MD5_Start_IT(hhash, NULL, 0, NULL);
- break;
-
- case HASH_AlgoSelection_SHA1:
- HAL_HASH_SHA1_Start_IT(hhash, NULL, 0, NULL);
- break;
-
- default:
- break;
- }
-}
-
-/**
- * @}
- */
-
-/** @defgroup HASH_Group4 HASH processing functions using DMA mode
- * @brief processing functions using DMA mode.
- *
-@verbatim
- ===============================================================================
- ##### HASH processing using DMA mode functions #####
- ===============================================================================
- [..] This section provides functions allowing to calculate in DMA mode
- the hash value using one of the following algorithms:
- (+) MD5
- (+) SHA1
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the HASH peripheral in MD5 mode then enables DMA to
- control data transfer. Use HAL_HASH_MD5_Finish() to get the digest.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_MD5_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
-{
- uint32_t inputaddr = (uint32_t)pInBuffer;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the MD5 mode and reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_AlgoSelection_MD5 | HASH_CR_INIT;
- }
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Set the HASH DMA transfer complete callback */
- hhash->hdmain->XferCpltCallback = HASH_DMAXferCplt;
- /* Set the DMA error callback */
- hhash->hdmain->XferErrorCallback = HASH_DMAError;
-
- /* Enable the DMA In DMA Stream */
- HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4 ? (Size+3)/4:Size/4));
-
- /* Enable DMA requests */
- HASH->CR |= (HASH_CR_DMAE);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Returns the computed digest in MD5 mode
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 16 bytes.
- * @param Timeout: Timeout value
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_MD5_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change HASH peripheral state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_CLR(HASH->SR, HASH_FLAG_DCIS))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
-
- /* Read the message digest */
- HASH_GetDigest(pOutBuffer, 16);
-
- /* Change HASH peripheral state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH peripheral in SHA1 mode then enables DMA to
- control data transfer. Use HAL_HASH_SHA1_Finish() to get the digest.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_SHA1_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
-{
- uint32_t inputaddr = (uint32_t)pInBuffer;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Select the SHA1 mode and reset the HASH processor core, so that the HASH will be ready to compute
- the message digest of a new message */
- HASH->CR |= HASH_AlgoSelection_SHA1;
- HASH->CR |= HASH_CR_INIT;
- }
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Set the HASH DMA transfer complete callback */
- hhash->hdmain->XferCpltCallback = HASH_DMAXferCplt;
- /* Set the DMA error callback */
- hhash->hdmain->XferErrorCallback = HASH_DMAError;
-
- /* Enable the DMA In DMA Stream */
- HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (Size%4 ? (Size+3)/4:Size/4));
-
- /* Enable DMA requests */
- HASH->CR |= (HASH_CR_DMAE);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Returns the computed digest in SHA1 mode.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
- * @param Timeout: Timeout value
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HASH_SHA1_Finish(HASH_HandleTypeDef *hhash, uint8_t* pOutBuffer, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change HASH peripheral state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Get tick */
- tickstart = HAL_GetTick();
- while(HAL_IS_BIT_CLR(HASH->SR, HASH_FLAG_DCIS))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
-
- /* Read the message digest */
- HASH_GetDigest(pOutBuffer, 20);
-
- /* Change HASH peripheral state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process UnLock */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-
-/**
- * @}
- */
-
-/** @defgroup HASH_Group5 HASH-MAC (HMAC) processing functions using polling mode
- * @brief HMAC processing functions using polling mode .
- *
-@verbatim
- ===============================================================================
- ##### HMAC processing using polling mode functions #####
- ===============================================================================
- [..] This section provides functions allowing to calculate in polling mode
- the HMAC value using one of the following algorithms:
- (+) MD5
- (+) SHA1
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the HASH peripheral in HMAC MD5 mode
- * then processes pInBuffer. The digest is available in pOutBuffer
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
- * @param Timeout: Timeout value
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HMAC_MD5_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Check if key size is greater than 64 bytes */
- if(hhash->Init.KeySize > 64)
- {
- /* Select the HMAC MD5 mode */
- HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey | HASH_CR_INIT);
- }
- else
- {
- /* Select the HMAC MD5 mode */
- HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HMAC | HASH_CR_INIT);
- }
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /************************** STEP 1 ******************************************/
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
-
- /* Write input buffer in data register */
- HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
- /************************** STEP 2 ******************************************/
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Write input buffer in data register */
- HASH_WriteData(pInBuffer, Size);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((HAL_GetTick() - tickstart ) > Timeout)
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
- /************************** STEP 3 ******************************************/
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
-
- /* Write input buffer in data register */
- HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((HAL_GetTick() - tickstart ) > Timeout)
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
-
- /* Read the message digest */
- HASH_GetDigest(pOutBuffer, 16);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH peripheral in HMAC SHA1 mode
- * then processes pInBuffer. The digest is available in pOutBuffer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @param pOutBuffer: Pointer to the computed digest. Its size must be 20 bytes.
- * @param Timeout: Timeout value
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HMAC_SHA1_Start(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size, uint8_t* pOutBuffer, uint32_t Timeout)
-{
- uint32_t tickstart = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Check if key size is greater than 64 bytes */
- if(hhash->Init.KeySize > 64)
- {
- /* Select the HMAC SHA1 mode */
- HASH->CR |= (HASH_AlgoSelection_SHA1 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey | HASH_CR_INIT);
- }
- else
- {
- /* Select the HMAC SHA1 mode */
- HASH->CR |= (HASH_AlgoSelection_SHA1 | HASH_AlgoMode_HMAC | HASH_CR_INIT);
- }
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /************************** STEP 1 ******************************************/
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
-
- /* Write input buffer in data register */
- HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout))
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
- /************************** STEP 2 ******************************************/
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(Size);
-
- /* Write input buffer in data register */
- HASH_WriteData(pInBuffer, Size);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((HAL_GetTick() - tickstart ) > Timeout)
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
- /************************** STEP 3 ******************************************/
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
-
- /* Write input buffer in data register */
- HASH_WriteData(hhash->Init.pKey, hhash->Init.KeySize);
-
- /* Start the digest calculation */
- __HAL_HASH_START_DIGEST();
-
- /* Get tick */
- tickstart = HAL_GetTick();
-
- while(HAL_IS_BIT_SET(HASH->SR, HASH_FLAG_BUSY))
- {
- /* Check for the Timeout */
- if(Timeout != HAL_MAX_DELAY)
- {
- if((HAL_GetTick() - tickstart ) > Timeout)
- {
- /* Change state */
- hhash->State = HAL_HASH_STATE_TIMEOUT;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- return HAL_TIMEOUT;
- }
- }
- }
- /* Read the message digest */
- HASH_GetDigest(pOutBuffer, 20);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @}
- */
-
-/** @defgroup HASH_Group6 HASH-MAC (HMAC) processing functions using DMA mode
- * @brief HMAC processing functions using DMA mode .
- *
-@verbatim
- ===============================================================================
- ##### HMAC processing using DMA mode functions #####
- ===============================================================================
- [..] This section provides functions allowing to calculate in DMA mode
- the HMAC value using one of the following algorithms:
- (+) MD5
- (+) SHA1
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initializes the HASH peripheral in HMAC MD5 mode
- * then enables DMA to control data transfer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HMAC_MD5_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
-{
- uint32_t inputaddr = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Save buffer pointer and size in handle */
- hhash->pHashInBuffPtr = pInBuffer;
- hhash->HashBuffSize = Size;
- hhash->HashInCount = 0;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Check if key size is greater than 64 bytes */
- if(hhash->Init.KeySize > 64)
- {
- /* Select the HMAC MD5 mode */
- HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey | HASH_CR_INIT);
- }
- else
- {
- /* Select the HMAC MD5 mode */
- HASH->CR |= (HASH_AlgoSelection_MD5 | HASH_AlgoMode_HMAC | HASH_CR_INIT);
- }
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
-
- /* Get the key address */
- inputaddr = (uint32_t)(hhash->Init.pKey);
-
- /* Set the HASH DMA transfer complete callback */
- hhash->hdmain->XferCpltCallback = HASH_DMAXferCplt;
- /* Set the DMA error callback */
- hhash->hdmain->XferErrorCallback = HASH_DMAError;
-
- /* Enable the DMA In DMA Stream */
- HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4 ? (hhash->Init.KeySize+3)/4:hhash->Init.KeySize/4));
- /* Enable DMA requests */
- HASH->CR |= (HASH_CR_DMAE);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Initializes the HASH peripheral in HMAC SHA1 mode
- * then enables DMA to control data transfer.
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @param pInBuffer: Pointer to the input buffer (buffer to be hashed).
- * @param Size: Length of the input buffer in bytes.
- * If the Size is not multiple of 64 bytes, the padding is managed by hardware.
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_HMAC_SHA1_Start_DMA(HASH_HandleTypeDef *hhash, uint8_t *pInBuffer, uint32_t Size)
-{
- uint32_t inputaddr = 0;
-
- /* Process Locked */
- __HAL_LOCK(hhash);
-
- /* Change the HASH state */
- hhash->State = HAL_HASH_STATE_BUSY;
-
- /* Save buffer pointer and size in handle */
- hhash->pHashInBuffPtr = pInBuffer;
- hhash->HashBuffSize = Size;
- hhash->HashInCount = 0;
-
- /* Check if initialization phase has already been performed */
- if(hhash->Phase == HAL_HASH_PHASE_READY)
- {
- /* Check if key size is greater than 64 bytes */
- if(hhash->Init.KeySize > 64)
- {
- /* Select the HMAC SHA1 mode */
- HASH->CR |= (HASH_AlgoSelection_SHA1 | HASH_AlgoMode_HMAC | HASH_HMACKeyType_LongKey | HASH_CR_INIT);
- }
- else
- {
- /* Select the HMAC SHA1 mode */
- HASH->CR |= (HASH_AlgoSelection_SHA1 | HASH_AlgoMode_HMAC | HASH_CR_INIT);
- }
- }
-
- /* Set the phase */
- hhash->Phase = HAL_HASH_PHASE_PROCESS;
-
- /* Configure the number of valid bits in last word of the message */
- __HAL_HASH_SET_NBVALIDBITS(hhash->Init.KeySize);
-
- /* Get the key address */
- inputaddr = (uint32_t)(hhash->Init.pKey);
-
- /* Set the HASH DMA transfer complete callback */
- hhash->hdmain->XferCpltCallback = HASH_DMAXferCplt;
- /* Set the DMA error callback */
- hhash->hdmain->XferErrorCallback = HASH_DMAError;
-
- /* Enable the DMA In DMA Stream */
- HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (hhash->Init.KeySize%4 ? (hhash->Init.KeySize+3)/4:hhash->Init.KeySize/4));
- /* Enable DMA requests */
- HASH->CR |= (HASH_CR_DMAE);
-
- /* Process Unlocked */
- __HAL_UNLOCK(hhash);
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @}
- */
-
-/** @defgroup HASH_Group7 Peripheral State functions
- * @brief Peripheral State functions.
- *
-@verbatim
- ===============================================================================
- ##### Peripheral State functions #####
- ===============================================================================
- [..]
- This subsection permits to get in run-time the status of the peripheral.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief return the HASH state
- * @param hhash: pointer to a HASH_HandleTypeDef structure that contains
- * the configuration information for HASH module
- * @retval HAL state
- */
-HAL_HASH_STATETypeDef HAL_HASH_GetState(HASH_HandleTypeDef *hhash)
-{
- return hhash->State;
-}
-
-/**
- * @}
- */
-
-/**
- * @brief DMA HASH Input Data complete callback.
- * @param hdma: DMA handle
- * @retval None
- */
-static void HASH_DMAXferCplt(DMA_HandleTypeDef *hdma)
-{
- HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
- uint32_t inputaddr = 0;
- uint32_t buffersize = 0;
-
- if((HASH->CR & HASH_CR_MODE) != HASH_CR_MODE)
- {
- /* Disable the DMA transfer */
- HASH->CR &= (uint32_t)(~HASH_CR_DMAE);
-
- /* Change HASH peripheral state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Call Input data transfer complete callback */
- HAL_HASH_InCpltCallback(hhash);
- }
- else
- {
- /* Increment Interrupt counter */
- hhash->HashInCount++;
- /* Disable the DMA transfer before starting the next transfer */
- HASH->CR &= (uint32_t)(~HASH_CR_DMAE);
-
- if(hhash->HashInCount <= 2)
- {
- /* In case HashInCount = 1, set the DMA to transfer data to HASH DIN register */
- if(hhash->HashInCount == 1)
- {
- inputaddr = (uint32_t)hhash->pHashInBuffPtr;
- buffersize = hhash->HashBuffSize;
- }
- /* In case HashInCount = 2, set the DMA to transfer key to HASH DIN register */
- else if(hhash->HashInCount == 2)
- {
- inputaddr = (uint32_t)hhash->Init.pKey;
- buffersize = hhash->Init.KeySize;
- }
- /* Configure the number of valid bits in last word of the message */
- HASH->STR |= 8 * (buffersize % 4);
-
- /* Set the HASH DMA transfer complete */
- hhash->hdmain->XferCpltCallback = HASH_DMAXferCplt;
-
- /* Enable the DMA In DMA Stream */
- HAL_DMA_Start_IT(hhash->hdmain, inputaddr, (uint32_t)&HASH->DIN, (buffersize%4 ? (buffersize+3)/4:buffersize/4));
-
- /* Enable DMA requests */
- HASH->CR |= (HASH_CR_DMAE);
- }
- else
- {
- /* Disable the DMA transfer */
- HASH->CR &= (uint32_t)(~HASH_CR_DMAE);
-
- /* Reset the InCount */
- hhash->HashInCount = 0;
-
- /* Change HASH peripheral state */
- hhash->State = HAL_HASH_STATE_READY;
-
- /* Call Input data transfer complete callback */
- HAL_HASH_InCpltCallback(hhash);
- }
- }
-}
-
-/**
- * @brief DMA HASH communication error callback.
- * @param hdma: DMA handle
- * @retval None
- */
-static void HASH_DMAError(DMA_HandleTypeDef *hdma)
-{
- HASH_HandleTypeDef* hhash = ( HASH_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
- hhash->State= HAL_HASH_STATE_READY;
- HAL_HASH_ErrorCallback(hhash);
-}
-
-/**
- * @brief Writes the input buffer in data register.
- * @param pInBuffer: Pointer to input buffer
- * @param Size: The size of input buffer
- * @retval None
- */
-static void HASH_WriteData(uint8_t *pInBuffer, uint32_t Size)
-{
- uint32_t buffercounter;
- uint32_t inputaddr = (uint32_t) pInBuffer;
-
- for(buffercounter = 0; buffercounter < Size; buffercounter+=4)
- {
- HASH->DIN = *(uint32_t*)inputaddr;
- inputaddr+=4;
- }
-}
-
-/**
- * @brief Provides the message digest result.
- * @param pMsgDigest: Pointer to the message digest
- * @param Size: The size of the message digest in bytes
- * @retval None
- */
-static void HASH_GetDigest(uint8_t *pMsgDigest, uint8_t Size)
-{
- uint32_t msgdigest = (uint32_t)pMsgDigest;
-
- switch(Size)
- {
- case 16:
- /* Read the message digest */
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
- break;
- case 20:
- /* Read the message digest */
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]);
- break;
- case 28:
- /* Read the message digest */
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6]);
- break;
- case 32:
- /* Read the message digest */
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[0]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[1]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[2]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[3]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH->HR[4]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[5]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[6]);
- msgdigest+=4;
- *(uint32_t*)(msgdigest) = __REV(HASH_DIGEST->HR[7]);
- break;
- default:
- break;
- }
-}
-
-/**
- * @}
- */
-#endif /* STM32F415xx || STM32F417xx || STM32F437xx || STM32F439xx */
-#endif /* HAL_HASH_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
