1 files changed, 175 insertions, 0 deletions
diff --git a/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Composite_Example/src/memory.c b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Composite_Example/src/memory.c
new file mode 100644
index 0000000..e574c55
--- /dev/null
+++ b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Composite_Example/src/memory.c
@@ -0,0 +1,175 @@
+/**
+  ******************************************************************************
+  * @file    memory.c
+  * @author  MCD Application Team
+  * @version V4.0.0
+  * @date    21-January-2013
+  * @brief   Memory management layer
+  ******************************************************************************
+  * @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 "memory.h"
+#include "usb_scsi.h"
+#include "usb_bot.h"
+#include "usb_regs.h"
+#include "usb_mem.h"
+#include "usb_conf.h"
+#include "hw_config.h"
+#include "mass_mal.h"
+#include "usb_lib.h"
+
+#define BULK_MAX_PACKET_SIZE 64
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+__IO uint32_t Block_Read_count = 0;
+__IO uint32_t Block_offset;
+__IO uint32_t Counter = 0;
+uint32_t  Idx;
+uint32_t Data_Buffer[64 *2]; /* 512 bytes*/
+uint8_t TransferState = TXFR_IDLE;
+/* Extern variables ----------------------------------------------------------*/
+extern uint8_t Bulk_Data_Buff[64];  /* data buffer*/
+extern uint16_t Data_Len;
+extern uint8_t Bot_State;
+extern Bulk_Only_CBW CBW;
+extern Bulk_Only_CSW CSW;
+extern uint32_t Mass_Memory_Size[2];
+extern uint32_t Mass_Block_Size[2];
+
+/* Private function prototypes -----------------------------------------------*/
+/* Extern function prototypes ------------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/*******************************************************************************
+* Function Name  : Read_Memory
+* Description    : Handle the Read operation from the microSD card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+void Read_Memory(uint8_t lun, uint32_t Memory_Offset, uint32_t Transfer_Length)
+{
+  static uint32_t Offset, Length;
+
+  if (TransferState == TXFR_IDLE )
+  {
+    Offset = Memory_Offset * Mass_Block_Size[lun];
+    Length = Transfer_Length * Mass_Block_Size[lun];
+    TransferState = TXFR_ONGOING;
+  }
+
+  if (TransferState == TXFR_ONGOING )
+  {
+    if (!Block_Read_count)
+    {
+      MAL_Read(lun ,
+               Offset ,
+               Data_Buffer,
+               Mass_Block_Size[lun]);
+
+      USB_SIL_Write(EP2_IN, (uint8_t *)Data_Buffer, BULK_MAX_PACKET_SIZE);
+
+      Block_Read_count = Mass_Block_Size[lun] - BULK_MAX_PACKET_SIZE;
+      Block_offset = BULK_MAX_PACKET_SIZE;
+    }
+    else
+    {
+      USB_SIL_Write(EP2_IN, (uint8_t *)Data_Buffer + Block_offset, BULK_MAX_PACKET_SIZE);
+
+      Block_Read_count -= BULK_MAX_PACKET_SIZE;
+      Block_offset += BULK_MAX_PACKET_SIZE;
+    }
+
+    SetEPTxCount(ENDP2, BULK_MAX_PACKET_SIZE);
+    SetEPTxStatus(ENDP2, EP_TX_VALID);  
+    Offset += BULK_MAX_PACKET_SIZE;
+    Length -= BULK_MAX_PACKET_SIZE;
+
+    CSW.dDataResidue -= BULK_MAX_PACKET_SIZE;
+  }
+  if (Length == 0)
+  {
+    Block_Read_count = 0;
+    Block_offset = 0;
+    Offset = 0;
+    Bot_State = BOT_DATA_IN_LAST;
+    TransferState = TXFR_IDLE;
+  }
+}
+
+/*******************************************************************************
+* Function Name  : Write_Memory
+* Description    : Handle the Write operation to the microSD card.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+void Write_Memory (uint8_t lun, uint32_t Memory_Offset, uint32_t Transfer_Length)
+{
+
+  static uint32_t W_Offset, W_Length;
+
+  uint32_t temp =  Counter + 64;
+
+  if (TransferState == TXFR_IDLE )
+  {
+    W_Offset = Memory_Offset * Mass_Block_Size[lun];
+    W_Length = Transfer_Length * Mass_Block_Size[lun];
+    TransferState = TXFR_ONGOING;
+  }
+
+  if (TransferState == TXFR_ONGOING )
+  {
+
+    for (Idx = 0 ; Counter < temp; Counter++)
+    {
+      *((uint8_t *)Data_Buffer + Counter) = Bulk_Data_Buff[Idx++];
+    }
+
+    W_Offset += Data_Len;
+    W_Length -= Data_Len;
+
+    if (!(W_Length % Mass_Block_Size[lun]))
+    {
+      Counter = 0;
+      MAL_Write(lun ,
+                W_Offset - Mass_Block_Size[lun],
+                Data_Buffer,
+                Mass_Block_Size[lun]);
+    }
+
+    CSW.dDataResidue -= Data_Len;
+    SetEPRxStatus(ENDP2, EP_RX_VALID); /* enable the next transaction*/   
+  }
+
+  if ((W_Length == 0) || (Bot_State == BOT_CSW_Send))
+  {
+    Counter = 0;
+    Set_CSW (CSW_CMD_PASSED, SEND_CSW_ENABLE);
+    TransferState = TXFR_IDLE;
+  }
+}
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+