1 files changed, 171 insertions, 0 deletions
diff --git a/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Device_Firmware_Upgrade/src/flash_if.c b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Device_Firmware_Upgrade/src/flash_if.c
new file mode 100644
index 0000000..e6caf41
--- /dev/null
+++ b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Device_Firmware_Upgrade/src/flash_if.c
@@ -0,0 +1,171 @@
+/**
+  ******************************************************************************
+  * @file    flash_if.c
+  * @author  MCD Application Team
+  * @version V4.0.0
+  * @date    21-January-2013
+  * @brief   specific media access Layer for internal flash
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (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.st.com/software_license_agreement_liberty_v2
+  *
+  * 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.
+  *
+  ******************************************************************************
+  */
+
+
+/* Includes ------------------------------------------------------------------*/
+#include "flash_if.h"
+#include "dfu_mal.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+
+#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
+  uint32_t tHalfPage1[128/4];
+  uint32_t tHalfPage2[128/4];
+#endif /* STM32L1XX_XD */  
+
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/*******************************************************************************
+* Function Name  : FLASH_If_Init
+* Description    : Initializes the Media on the STM32
+* Input          : None
+* Output         : None
+* Return         : None
+*******************************************************************************/
+uint16_t FLASH_If_Init(void)
+{
+  return MAL_OK;
+}
+
+/*******************************************************************************
+* Function Name  : FLASH_If_Erase
+* Description    : Erase sector
+* Input          : None
+* Output         : None
+* Return         : None
+*******************************************************************************/
+uint16_t FLASH_If_Erase(uint32_t SectorAddress)
+{
+#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
+  FLASH_ClearFlag(FLASH_FLAG_PGAERR | FLASH_FLAG_OPTVERR);
+  FLASH_ErasePage(SectorAddress);
+#else
+  FLASH_ErasePage(SectorAddress);
+#endif /* STM32L1XX_XD */
+  
+  return MAL_OK;
+}
+
+/*******************************************************************************
+* Function Name  : FLASH_If_Write
+* Description    : Write sectors
+* Input          : None
+* Output         : None
+* Return         : None
+*******************************************************************************/
+uint16_t FLASH_If_Write(uint32_t SectorAddress, uint32_t DataLength)
+{
+  uint32_t idx = 0;
+#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
+  __IO uint32_t* malPointer = (uint32_t *)MAL_Buffer;
+  __IO uint32_t* memPointer = (uint32_t *)SectorAddress;
+  __IO uint32_t memBuffer[32]; /* Temporary buffer holding data that will be written in a half-page space */
+  __IO uint32_t* mempBuffer = memBuffer;  
+  __IO uint32_t* tmp;
+#endif /* STM32L1XX_XD */      
+  
+  if  (DataLength & 0x3) /* Not an aligned data */
+  {
+    for (idx = DataLength; idx < ((DataLength & 0xFFFC) + 4); idx++)
+    {
+      MAL_Buffer[idx] = 0xFF;
+    }
+  } 
+  
+#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS) 
+  /* Reinitialize the intermediate buffer pointer */
+  mempBuffer = memBuffer;
+  
+  /* If the address is not aligned to half-page fill the first location with existing data */
+  if (((uint32_t)memPointer & 0x7F) != 0)
+  {
+    /* get the aligned address */
+    tmp = (uint32_t *)((uint32_t)memPointer & 0xFFFFFF80);
+    
+    /* Read the first part from the memory */
+    while (tmp < memPointer)
+    {
+      *(uint32_t *)(mempBuffer++) = *(uint32_t *)(tmp++);
+    }
+  }    
+  
+  while (malPointer < (uint32_t*)(MAL_Buffer + DataLength))
+  {    
+    /* Fill with the received buffer */
+    while (mempBuffer < (memBuffer + 32))
+    {
+      /* If there are still data available in the received buffer */
+      if (malPointer < ((uint32_t *)MAL_Buffer + DataLength))
+      {
+        *(uint32_t *)(mempBuffer++) = *(uint32_t *)(malPointer++);
+      }
+      else /* no more data available in the received buffer: fill remaining with dummy 0 */
+      {
+        *(uint32_t *)(mempBuffer++) = 0;
+      }
+    }
+   
+    /* Write the buffer to the memory*/    
+    FLASH_ProgramHalfPage(((uint32_t)memPointer & 0xFFFFFF80), (uint32_t *)(memBuffer));    
+    
+    /* Increment the memory pointer */ 
+    memPointer = (uint32_t *)(((uint32_t)memPointer & 0xFFFFFF80) + (32*4));
+    
+    /* Reinitialize the intermediate buffer pointer */
+    mempBuffer = memBuffer;
+  }
+  
+#else
+  
+  /* Data received are Word multiple */    
+  for (idx = 0; idx <  DataLength; idx = idx + 4)
+  {
+    FLASH_ProgramWord(SectorAddress, *(uint32_t *)(MAL_Buffer + idx));  
+    SectorAddress += 4;
+  } 
+#endif /* STM32L1XX_XD */
+ 
+  return MAL_OK;
+}
+
+/*******************************************************************************
+* Function Name  : FLASH_If_Read
+* Description    : Read sectors
+* Input          : None
+* Output         : None
+* Return         : buffer address pointer
+*******************************************************************************/
+uint8_t *FLASH_If_Read (uint32_t SectorAddress, uint32_t DataLength)
+{
+  return  (uint8_t*)(SectorAddress);
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/