From 6ab94e0b318884bbcb95e2ea3835f951502e1d99 Mon Sep 17 00:00:00 2001
From: jaseg <git@jaseg.net>
Date: Wed, 14 Oct 2020 12:47:28 +0200
Subject: Move firmware into subdirectory

---
 .../STM32_USB_Device_Library/Core/Inc/usbd_core.h  | 167 +++++
 .../Core/Inc/usbd_ctlreq.h                         | 113 +++
 .../STM32_USB_Device_Library/Core/Inc/usbd_def.h   | 330 +++++++++
 .../STM32_USB_Device_Library/Core/Inc/usbd_ioreq.h | 128 ++++
 .../STM32_USB_Device_Library/Core/Src/usbd_core.c  | 565 +++++++++++++++
 .../Core/Src/usbd_ctlreq.c                         | 782 +++++++++++++++++++++
 .../STM32_USB_Device_Library/Core/Src/usbd_ioreq.c | 236 +++++++
 fw/midi-dials/Middlewares/USBMIDI/Inc/usbd_midi.h  |  59 ++
 fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c  | 199 ++++++
 9 files changed, 2579 insertions(+)
 create mode 100644 fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h
 create mode 100644 fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ctlreq.h
 create mode 100644 fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h
 create mode 100644 fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ioreq.h
 create mode 100644 fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c
 create mode 100644 fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.c
 create mode 100644 fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.c
 create mode 100644 fw/midi-dials/Middlewares/USBMIDI/Inc/usbd_midi.h
 create mode 100644 fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c

(limited to 'fw/midi-dials/Middlewares')

diff --git a/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h
new file mode 100644
index 0000000..6550cd7
--- /dev/null
+++ b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_core.h
@@ -0,0 +1,167 @@
+/**
+  ******************************************************************************
+  * @file    usbd_core.h
+  * @author  MCD Application Team
+  * @version V2.4.2
+  * @date    11-December-2015
+  * @brief   Header file for usbd_core.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2015 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.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_CORE_H
+#define __USBD_CORE_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_conf.h"
+#include "usbd_def.h"
+#include "usbd_ioreq.h"
+#include "usbd_ctlreq.h"
+
+/** @addtogroup STM32_USB_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_CORE
+  * @brief This file is the Header file for usbd_core.c file
+  * @{
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_CORE_Exported_TypesDefinitions
+  * @{
+  */
+ 
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_CORE_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_Variables
+  * @{
+  */ 
+#define USBD_SOF          USBD_LL_SOF
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_CORE_Exported_FunctionsPrototype
+  * @{
+  */ 
+USBD_StatusTypeDef USBD_Init(USBD_HandleTypeDef *pdev, USBD_DescriptorsTypeDef *pdesc, uint8_t id);
+USBD_StatusTypeDef USBD_DeInit(USBD_HandleTypeDef *pdev);
+USBD_StatusTypeDef USBD_Start  (USBD_HandleTypeDef *pdev);
+USBD_StatusTypeDef USBD_Stop   (USBD_HandleTypeDef *pdev);
+USBD_StatusTypeDef USBD_RegisterClass(USBD_HandleTypeDef *pdev, USBD_ClassTypeDef *pclass);
+
+USBD_StatusTypeDef USBD_RunTestMode (USBD_HandleTypeDef  *pdev); 
+USBD_StatusTypeDef USBD_SetClassConfig(USBD_HandleTypeDef  *pdev, uint8_t cfgidx);
+USBD_StatusTypeDef USBD_ClrClassConfig(USBD_HandleTypeDef  *pdev, uint8_t cfgidx);
+
+USBD_StatusTypeDef USBD_LL_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup);
+USBD_StatusTypeDef USBD_LL_DataOutStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata);
+USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata);
+
+USBD_StatusTypeDef USBD_LL_Reset(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_LL_SetSpeed(USBD_HandleTypeDef  *pdev, USBD_SpeedTypeDef speed);
+USBD_StatusTypeDef USBD_LL_Suspend(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_LL_Resume(USBD_HandleTypeDef  *pdev);
+
+USBD_StatusTypeDef USBD_LL_SOF(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_LL_IsoINIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum);
+USBD_StatusTypeDef USBD_LL_IsoOUTIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum);
+
+USBD_StatusTypeDef USBD_LL_DevConnected(USBD_HandleTypeDef  *pdev);
+USBD_StatusTypeDef USBD_LL_DevDisconnected(USBD_HandleTypeDef  *pdev);
+
+/* USBD Low Level Driver */
+USBD_StatusTypeDef  USBD_LL_Init (USBD_HandleTypeDef *pdev);
+USBD_StatusTypeDef  USBD_LL_DeInit (USBD_HandleTypeDef *pdev);
+USBD_StatusTypeDef  USBD_LL_Start(USBD_HandleTypeDef *pdev);
+USBD_StatusTypeDef  USBD_LL_Stop (USBD_HandleTypeDef *pdev);
+USBD_StatusTypeDef  USBD_LL_OpenEP  (USBD_HandleTypeDef *pdev, 
+                                      uint8_t  ep_addr,                                      
+                                      uint8_t  ep_type,
+                                      uint16_t ep_mps);
+
+USBD_StatusTypeDef  USBD_LL_CloseEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr);   
+USBD_StatusTypeDef  USBD_LL_FlushEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr);   
+USBD_StatusTypeDef  USBD_LL_StallEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr);   
+USBD_StatusTypeDef  USBD_LL_ClearStallEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr);   
+uint8_t             USBD_LL_IsStallEP (USBD_HandleTypeDef *pdev, uint8_t ep_addr);   
+USBD_StatusTypeDef  USBD_LL_SetUSBAddress (USBD_HandleTypeDef *pdev, uint8_t dev_addr);   
+USBD_StatusTypeDef  USBD_LL_Transmit (USBD_HandleTypeDef *pdev, 
+                                      uint8_t  ep_addr,                                      
+                                      uint8_t  *pbuf,
+                                      uint16_t  size);
+
+USBD_StatusTypeDef  USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev, 
+                                           uint8_t  ep_addr,                                      
+                                           uint8_t  *pbuf,
+                                           uint16_t  size);
+
+uint32_t USBD_LL_GetRxDataSize  (USBD_HandleTypeDef *pdev, uint8_t  ep_addr);  
+void  USBD_LL_Delay (uint32_t Delay);
+
+/**
+  * @}
+  */ 
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USBD_CORE_H */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
+
+
diff --git a/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ctlreq.h b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ctlreq.h
new file mode 100644
index 0000000..66380fd
--- /dev/null
+++ b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ctlreq.h
@@ -0,0 +1,113 @@
+/**
+  ******************************************************************************
+  * @file    usbd_req.h
+  * @author  MCD Application Team
+  * @version V2.4.2
+  * @date    11-December-2015
+  * @brief   Header file for the usbd_req.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2015 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.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_REQUEST_H
+#define __USB_REQUEST_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include  "usbd_def.h"
+
+
+/** @addtogroup STM32_USB_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_REQ
+  * @brief header file for the usbd_req.c file
+  * @{
+  */ 
+
+/** @defgroup USBD_REQ_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Exported_Types
+  * @{
+  */
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_REQ_Exported_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_REQ_Exported_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_REQ_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+USBD_StatusTypeDef  USBD_StdDevReq (USBD_HandleTypeDef  *pdev, USBD_SetupReqTypedef  *req);
+USBD_StatusTypeDef  USBD_StdItfReq (USBD_HandleTypeDef  *pdev, USBD_SetupReqTypedef  *req);
+USBD_StatusTypeDef  USBD_StdEPReq  (USBD_HandleTypeDef  *pdev, USBD_SetupReqTypedef  *req);
+
+
+void USBD_CtlError  (USBD_HandleTypeDef  *pdev, USBD_SetupReqTypedef *req);
+
+void USBD_ParseSetupRequest (USBD_SetupReqTypedef *req, uint8_t *pdata);
+
+void USBD_GetString         (uint8_t *desc, uint8_t *unicode, uint16_t *len);
+/**
+  * @}
+  */ 
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USB_REQUEST_H */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h
new file mode 100644
index 0000000..969e324
--- /dev/null
+++ b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_def.h
@@ -0,0 +1,330 @@
+/**
+  ******************************************************************************
+  * @file    usbd_def.h
+  * @author  MCD Application Team
+  * @version V2.4.2
+  * @date    11-December-2015
+  * @brief   General defines for the usb device library 
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2015 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.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_DEF_H
+#define __USBD_DEF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_conf.h"
+
+/** @addtogroup STM32_USBD_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USB_DEF
+  * @brief general defines for the usb device library file
+  * @{
+  */ 
+
+/** @defgroup USB_DEF_Exported_Defines
+  * @{
+  */ 
+
+#ifndef NULL
+#define NULL  0
+#endif
+
+
+#define  USB_LEN_DEV_QUALIFIER_DESC                     0x0A
+#define  USB_LEN_DEV_DESC                               0x12
+#define  USB_LEN_CFG_DESC                               0x09
+#define  USB_LEN_IF_DESC                                0x09
+#define  USB_LEN_EP_DESC                                0x07
+#define  USB_LEN_OTG_DESC                               0x03
+#define  USB_LEN_LANGID_STR_DESC                        0x04
+#define  USB_LEN_OTHER_SPEED_DESC_SIZ                   0x09
+
+#define  USBD_IDX_LANGID_STR                            0x00 
+#define  USBD_IDX_MFC_STR                               0x01 
+#define  USBD_IDX_PRODUCT_STR                           0x02
+#define  USBD_IDX_SERIAL_STR                            0x03 
+#define  USBD_IDX_CONFIG_STR                            0x04 
+#define  USBD_IDX_INTERFACE_STR                         0x05 
+
+#define  USB_REQ_TYPE_STANDARD                          0x00
+#define  USB_REQ_TYPE_CLASS                             0x20
+#define  USB_REQ_TYPE_VENDOR                            0x40
+#define  USB_REQ_TYPE_MASK                              0x60
+
+#define  USB_REQ_RECIPIENT_DEVICE                       0x00
+#define  USB_REQ_RECIPIENT_INTERFACE                    0x01
+#define  USB_REQ_RECIPIENT_ENDPOINT                     0x02
+#define  USB_REQ_RECIPIENT_MASK                         0x03
+
+#define  USB_REQ_GET_STATUS                             0x00
+#define  USB_REQ_CLEAR_FEATURE                          0x01
+#define  USB_REQ_SET_FEATURE                            0x03
+#define  USB_REQ_SET_ADDRESS                            0x05
+#define  USB_REQ_GET_DESCRIPTOR                         0x06
+#define  USB_REQ_SET_DESCRIPTOR                         0x07
+#define  USB_REQ_GET_CONFIGURATION                      0x08
+#define  USB_REQ_SET_CONFIGURATION                      0x09
+#define  USB_REQ_GET_INTERFACE                          0x0A
+#define  USB_REQ_SET_INTERFACE                          0x0B
+#define  USB_REQ_SYNCH_FRAME                            0x0C
+
+#define  USB_DESC_TYPE_DEVICE                              1
+#define  USB_DESC_TYPE_CONFIGURATION                       2
+#define  USB_DESC_TYPE_STRING                              3
+#define  USB_DESC_TYPE_INTERFACE                           4
+#define  USB_DESC_TYPE_ENDPOINT                            5
+#define  USB_DESC_TYPE_DEVICE_QUALIFIER                    6
+#define  USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION           7
+#define  USB_DESC_TYPE_BOS                                 0x0F
+
+#define USB_CONFIG_REMOTE_WAKEUP                           2
+#define USB_CONFIG_SELF_POWERED                            1
+
+#define USB_FEATURE_EP_HALT                                0
+#define USB_FEATURE_REMOTE_WAKEUP                          1
+#define USB_FEATURE_TEST_MODE                              2
+
+#define USB_DEVICE_CAPABITY_TYPE                           0x10
+
+#define USB_HS_MAX_PACKET_SIZE                            512
+#define USB_FS_MAX_PACKET_SIZE                            64
+#define USB_MAX_EP0_SIZE                                  64
+
+/*  Device Status */
+#define USBD_STATE_DEFAULT                                1
+#define USBD_STATE_ADDRESSED                              2
+#define USBD_STATE_CONFIGURED                             3
+#define USBD_STATE_SUSPENDED                              4
+
+
+/*  EP0 State */    
+#define USBD_EP0_IDLE                                     0
+#define USBD_EP0_SETUP                                    1
+#define USBD_EP0_DATA_IN                                  2
+#define USBD_EP0_DATA_OUT                                 3
+#define USBD_EP0_STATUS_IN                                4
+#define USBD_EP0_STATUS_OUT                               5
+#define USBD_EP0_STALL                                    6    
+
+#define USBD_EP_TYPE_CTRL                                 0
+#define USBD_EP_TYPE_ISOC                                 1
+#define USBD_EP_TYPE_BULK                                 2
+#define USBD_EP_TYPE_INTR                                 3
+
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_DEF_Exported_TypesDefinitions
+  * @{
+  */
+
+typedef  struct  usb_setup_req 
+{
+    
+    uint8_t   bmRequest;                      
+    uint8_t   bRequest;                           
+    uint16_t  wValue;                             
+    uint16_t  wIndex;                             
+    uint16_t  wLength;                            
+}USBD_SetupReqTypedef;
+
+struct _USBD_HandleTypeDef;
+    
+typedef struct _Device_cb
+{
+  uint8_t  (*Init)             (struct _USBD_HandleTypeDef *pdev , uint8_t cfgidx);
+  uint8_t  (*DeInit)           (struct _USBD_HandleTypeDef *pdev , uint8_t cfgidx);
+ /* Control Endpoints*/
+  uint8_t  (*Setup)            (struct _USBD_HandleTypeDef *pdev , USBD_SetupReqTypedef  *req);  
+  uint8_t  (*EP0_TxSent)       (struct _USBD_HandleTypeDef *pdev );    
+  uint8_t  (*EP0_RxReady)      (struct _USBD_HandleTypeDef *pdev );  
+  /* Class Specific Endpoints*/
+  uint8_t  (*DataIn)           (struct _USBD_HandleTypeDef *pdev , uint8_t epnum);   
+  uint8_t  (*DataOut)          (struct _USBD_HandleTypeDef *pdev , uint8_t epnum); 
+  uint8_t  (*SOF)              (struct _USBD_HandleTypeDef *pdev); 
+  uint8_t  (*IsoINIncomplete)  (struct _USBD_HandleTypeDef *pdev , uint8_t epnum); 
+  uint8_t  (*IsoOUTIncomplete) (struct _USBD_HandleTypeDef *pdev , uint8_t epnum);   
+
+  uint8_t  *(*GetHSConfigDescriptor)(uint16_t *length); 
+  uint8_t  *(*GetFSConfigDescriptor)(uint16_t *length);   
+  uint8_t  *(*GetOtherSpeedConfigDescriptor)(uint16_t *length);
+  uint8_t  *(*GetDeviceQualifierDescriptor)(uint16_t *length);
+#if (USBD_SUPPORT_USER_STRING == 1)
+  uint8_t  *(*GetUsrStrDescriptor)(struct _USBD_HandleTypeDef *pdev ,uint8_t index,  uint16_t *length);   
+#endif  
+  
+} USBD_ClassTypeDef;
+
+/* Following USB Device Speed */
+typedef enum 
+{
+  USBD_SPEED_HIGH  = 0,
+  USBD_SPEED_FULL  = 1,
+  USBD_SPEED_LOW   = 2,  
+}USBD_SpeedTypeDef;
+
+/* Following USB Device status */
+typedef enum {
+  USBD_OK   = 0,
+  USBD_BUSY,
+  USBD_FAIL,
+}USBD_StatusTypeDef;
+
+/* USB Device descriptors structure */
+typedef struct
+{
+  uint8_t  *(*GetDeviceDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length);  
+  uint8_t  *(*GetLangIDStrDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length); 
+  uint8_t  *(*GetManufacturerStrDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length);  
+  uint8_t  *(*GetProductStrDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length);  
+  uint8_t  *(*GetSerialStrDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length);  
+  uint8_t  *(*GetConfigurationStrDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length);  
+  uint8_t  *(*GetInterfaceStrDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length); 
+#if (USBD_LPM_ENABLED == 1)
+  uint8_t  *(*GetBOSDescriptor)( USBD_SpeedTypeDef speed , uint16_t *length); 
+#endif  
+} USBD_DescriptorsTypeDef;
+
+/* USB Device handle structure */
+typedef struct
+{ 
+  uint32_t                status;
+  uint32_t                total_length;    
+  uint32_t                rem_length; 
+  uint32_t                maxpacket;   
+} USBD_EndpointTypeDef;
+
+/* USB Device handle structure */
+typedef struct _USBD_HandleTypeDef
+{
+  uint8_t                 id;
+  uint32_t                dev_config;
+  uint32_t                dev_default_config;
+  uint32_t                dev_config_status; 
+  USBD_SpeedTypeDef       dev_speed; 
+  USBD_EndpointTypeDef    ep_in[15];
+  USBD_EndpointTypeDef    ep_out[15];  
+  uint32_t                ep0_state;  
+  uint32_t                ep0_data_len;     
+  uint8_t                 dev_state;
+  uint8_t                 dev_old_state;
+  uint8_t                 dev_address;
+  uint8_t                 dev_connection_status;  
+  uint8_t                 dev_test_mode;
+  uint32_t                dev_remote_wakeup;
+
+  USBD_SetupReqTypedef    request;
+  USBD_DescriptorsTypeDef *pDesc;
+  USBD_ClassTypeDef       *pClass;
+  void                    *pClassData;  
+  void                    *pUserData;    
+  void                    *pData;    
+} USBD_HandleTypeDef;
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_DEF_Exported_Macros
+  * @{
+  */ 
+#define  SWAPBYTE(addr)        (((uint16_t)(*((uint8_t *)(addr)))) + \
+                               (((uint16_t)(*(((uint8_t *)(addr)) + 1))) << 8))
+
+#define LOBYTE(x)  ((uint8_t)(x & 0x00FF))
+#define HIBYTE(x)  ((uint8_t)((x & 0xFF00) >>8))
+#define MIN(a, b)  (((a) < (b)) ? (a) : (b))
+#define MAX(a, b)  (((a) > (b)) ? (a) : (b))
+
+
+#if  defined ( __GNUC__ )
+  #ifndef __weak
+    #define __weak   __attribute__((weak))
+  #endif /* __weak */
+  #ifndef __packed
+    #define __packed __attribute__((__packed__))
+  #endif /* __packed */
+#endif /* __GNUC__ */
+
+
+/* In HS mode and when the DMA is used, all variables and data structures dealing
+   with the DMA during the transaction process should be 4-bytes aligned */    
+
+#if defined   (__GNUC__)        /* GNU Compiler */
+  #define __ALIGN_END    __attribute__ ((aligned (4)))
+  #define __ALIGN_BEGIN         
+#else                           
+  #define __ALIGN_END
+  #if defined   (__CC_ARM)      /* ARM Compiler */
+    #define __ALIGN_BEGIN    __align(4)  
+  #elif defined (__ICCARM__)    /* IAR Compiler */
+    #define __ALIGN_BEGIN 
+  #elif defined  (__TASKING__)  /* TASKING Compiler */
+    #define __ALIGN_BEGIN    __align(4) 
+  #endif /* __CC_ARM */  
+#endif /* __GNUC__ */ 
+  
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_DEF_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_DEF_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USBD_DEF_H */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ioreq.h b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ioreq.h
new file mode 100644
index 0000000..dbf8ca1
--- /dev/null
+++ b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Inc/usbd_ioreq.h
@@ -0,0 +1,128 @@
+/**
+  ******************************************************************************
+  * @file    usbd_ioreq.h
+  * @author  MCD Application Team
+  * @version V2.4.2
+  * @date    11-December-2015
+  * @brief   Header file for the usbd_ioreq.c file
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2015 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.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USBD_IOREQ_H
+#define __USBD_IOREQ_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include  "usbd_def.h"
+#include  "usbd_core.h"
+
+/** @addtogroup STM32_USB_DEVICE_LIBRARY
+  * @{
+  */
+  
+/** @defgroup USBD_IOREQ
+  * @brief header file for the usbd_ioreq.c file
+  * @{
+  */ 
+
+/** @defgroup USBD_IOREQ_Exported_Defines
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Exported_Types
+  * @{
+  */
+
+
+/**
+  * @}
+  */ 
+
+
+
+/** @defgroup USBD_IOREQ_Exported_Macros
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_IOREQ_Exported_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+/** @defgroup USBD_IOREQ_Exported_FunctionsPrototype
+  * @{
+  */ 
+
+USBD_StatusTypeDef  USBD_CtlSendData (USBD_HandleTypeDef  *pdev, 
+                               uint8_t *buf,
+                               uint16_t len);
+
+USBD_StatusTypeDef  USBD_CtlContinueSendData (USBD_HandleTypeDef  *pdev, 
+                               uint8_t *pbuf,
+                               uint16_t len);
+
+USBD_StatusTypeDef USBD_CtlPrepareRx (USBD_HandleTypeDef  *pdev, 
+                               uint8_t *pbuf,                                 
+                               uint16_t len);
+
+USBD_StatusTypeDef  USBD_CtlContinueRx (USBD_HandleTypeDef  *pdev, 
+                              uint8_t *pbuf,                                          
+                              uint16_t len);
+
+USBD_StatusTypeDef  USBD_CtlSendStatus (USBD_HandleTypeDef  *pdev);
+
+USBD_StatusTypeDef  USBD_CtlReceiveStatus (USBD_HandleTypeDef  *pdev);
+
+uint16_t  USBD_GetRxCount (USBD_HandleTypeDef  *pdev , 
+                           uint8_t epnum);
+
+/**
+  * @}
+  */ 
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USBD_IOREQ_H */
+
+/**
+  * @}
+  */ 
+
+/**
+* @}
+*/ 
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c
new file mode 100644
index 0000000..86fc2de
--- /dev/null
+++ b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_core.c
@@ -0,0 +1,565 @@
+/**
+  ******************************************************************************
+  * @file    usbd_core.c
+  * @author  MCD Application Team
+  * @version V2.4.2
+  * @date    11-December-2015
+  * @brief   This file provides all the USBD core functions.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2015 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 "usbd_core.h"
+
+/** @addtogroup STM32_USBD_DEVICE_LIBRARY
+* @{
+*/
+
+
+/** @defgroup USBD_CORE 
+* @brief usbd core module
+* @{
+*/ 
+
+/** @defgroup USBD_CORE_Private_TypesDefinitions
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBD_CORE_Private_Defines
+* @{
+*/ 
+
+/**
+* @}
+*/ 
+
+
+/** @defgroup USBD_CORE_Private_Macros
+* @{
+*/ 
+/**
+* @}
+*/ 
+
+
+
+
+/** @defgroup USBD_CORE_Private_FunctionPrototypes
+* @{
+*/ 
+
+/**
+* @}
+*/ 
+
+/** @defgroup USBD_CORE_Private_Variables
+* @{
+*/ 
+
+/**
+* @}
+*/ 
+
+/** @defgroup USBD_CORE_Private_Functions
+* @{
+*/ 
+
+/**
+* @brief  USBD_Init
+*         Initializes the device stack and load the class driver
+* @param  pdev: device instance
+* @param  pdesc: Descriptor structure address
+* @param  id: Low level core index
+* @retval None
+*/
+USBD_StatusTypeDef USBD_Init(USBD_HandleTypeDef *pdev, USBD_DescriptorsTypeDef *pdesc, uint8_t id)
+{
+  /* Check whether the USB Host handle is valid */
+  if(pdev == NULL)
+  {
+    USBD_ErrLog("Invalid Device handle");
+    return USBD_FAIL; 
+  }
+  
+  /* Unlink previous class*/
+  if(pdev->pClass != NULL)
+  {
+    pdev->pClass = NULL;
+  }
+  
+  /* Assign USBD Descriptors */
+  if(pdesc != NULL)
+  {
+    pdev->pDesc = pdesc;
+  }
+  
+  /* Set Device initial State */
+  pdev->dev_state  = USBD_STATE_DEFAULT;
+  pdev->id = id;
+  /* Initialize low level driver */
+  USBD_LL_Init(pdev);
+  
+  return USBD_OK; 
+}
+
+/**
+* @brief  USBD_DeInit 
+*         Re-Initialize th device library
+* @param  pdev: device instance
+* @retval status: status
+*/
+USBD_StatusTypeDef USBD_DeInit(USBD_HandleTypeDef *pdev)
+{
+  /* Set Default State */
+  pdev->dev_state  = USBD_STATE_DEFAULT;
+  
+  /* Free Class Resources */
+  pdev->pClass->DeInit(pdev, pdev->dev_config);  
+  
+    /* Stop the low level driver  */
+  USBD_LL_Stop(pdev); 
+  
+  /* Initialize low level driver */
+  USBD_LL_DeInit(pdev);
+  
+  return USBD_OK;
+}
+
+
+/**
+  * @brief  USBD_RegisterClass 
+  *         Link class driver to Device Core.
+  * @param  pDevice : Device Handle
+  * @param  pclass: Class handle
+  * @retval USBD Status
+  */
+USBD_StatusTypeDef  USBD_RegisterClass(USBD_HandleTypeDef *pdev, USBD_ClassTypeDef *pclass)
+{
+  USBD_StatusTypeDef   status = USBD_OK;
+  if(pclass != 0)
+  {
+    /* link the class to the USB Device handle */
+    pdev->pClass = pclass;
+    status = USBD_OK;
+  }
+  else
+  {
+    USBD_ErrLog("Invalid Class handle");
+    status = USBD_FAIL; 
+  }
+  
+  return status;
+}
+
+/**
+  * @brief  USBD_Start 
+  *         Start the USB Device Core.
+  * @param  pdev: Device Handle
+  * @retval USBD Status
+  */
+USBD_StatusTypeDef  USBD_Start  (USBD_HandleTypeDef *pdev)
+{
+  
+  /* Start the low level driver  */
+  USBD_LL_Start(pdev); 
+  
+  return USBD_OK;  
+}
+
+/**
+  * @brief  USBD_Stop 
+  *         Stop the USB Device Core.
+  * @param  pdev: Device Handle
+  * @retval USBD Status
+  */
+USBD_StatusTypeDef  USBD_Stop   (USBD_HandleTypeDef *pdev)
+{
+  /* Free Class Resources */
+  pdev->pClass->DeInit(pdev, pdev->dev_config);  
+
+  /* Stop the low level driver  */
+  USBD_LL_Stop(pdev); 
+  
+  return USBD_OK;  
+}
+
+/**
+* @brief  USBD_RunTestMode 
+*         Launch test mode process
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_RunTestMode (USBD_HandleTypeDef  *pdev) 
+{
+  return USBD_OK;
+}
+
+
+/**
+* @brief  USBD_SetClassConfig 
+*        Configure device and start the interface
+* @param  pdev: device instance
+* @param  cfgidx: configuration index
+* @retval status
+*/
+
+USBD_StatusTypeDef USBD_SetClassConfig(USBD_HandleTypeDef  *pdev, uint8_t cfgidx)
+{
+  USBD_StatusTypeDef   ret = USBD_FAIL;
+  
+  if(pdev->pClass != NULL)
+  {
+    /* Set configuration  and Start the Class*/
+    if(pdev->pClass->Init(pdev, cfgidx) == 0)
+    {
+      ret = USBD_OK;
+    }
+  }
+  return ret; 
+}
+
+/**
+* @brief  USBD_ClrClassConfig 
+*         Clear current configuration
+* @param  pdev: device instance
+* @param  cfgidx: configuration index
+* @retval status: USBD_StatusTypeDef
+*/
+USBD_StatusTypeDef USBD_ClrClassConfig(USBD_HandleTypeDef  *pdev, uint8_t cfgidx)
+{
+  /* Clear configuration  and De-initialize the Class process*/
+  pdev->pClass->DeInit(pdev, cfgidx);  
+  return USBD_OK;
+}
+
+
+/**
+* @brief  USBD_SetupStage 
+*         Handle the setup stage
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_SetupStage(USBD_HandleTypeDef *pdev, uint8_t *psetup)
+{
+
+  USBD_ParseSetupRequest(&pdev->request, psetup);
+  
+  pdev->ep0_state = USBD_EP0_SETUP;
+  pdev->ep0_data_len = pdev->request.wLength;
+  
+  switch (pdev->request.bmRequest & 0x1F) 
+  {
+  case USB_REQ_RECIPIENT_DEVICE:   
+    USBD_StdDevReq (pdev, &pdev->request);
+    break;
+    
+  case USB_REQ_RECIPIENT_INTERFACE:     
+    USBD_StdItfReq(pdev, &pdev->request);
+    break;
+    
+  case USB_REQ_RECIPIENT_ENDPOINT:        
+    USBD_StdEPReq(pdev, &pdev->request);   
+    break;
+    
+  default:           
+    USBD_LL_StallEP(pdev , pdev->request.bmRequest & 0x80);
+    break;
+  }  
+  return USBD_OK;  
+}
+
+/**
+* @brief  USBD_DataOutStage 
+*         Handle data OUT stage
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_DataOutStage(USBD_HandleTypeDef *pdev , uint8_t epnum, uint8_t *pdata)
+{
+  USBD_EndpointTypeDef    *pep;
+  
+  if(epnum == 0) 
+  {
+    pep = &pdev->ep_out[0];
+    
+    if ( pdev->ep0_state == USBD_EP0_DATA_OUT)
+    {
+      if(pep->rem_length > pep->maxpacket)
+      {
+        pep->rem_length -=  pep->maxpacket;
+       
+        USBD_CtlContinueRx (pdev, 
+                            pdata,
+                            MIN(pep->rem_length ,pep->maxpacket));
+      }
+      else
+      {
+        if((pdev->pClass->EP0_RxReady != NULL)&&
+           (pdev->dev_state == USBD_STATE_CONFIGURED))
+        {
+          pdev->pClass->EP0_RxReady(pdev); 
+        }
+        USBD_CtlSendStatus(pdev);
+      }
+    }
+  }
+  else if((pdev->pClass->DataOut != NULL)&&
+          (pdev->dev_state == USBD_STATE_CONFIGURED))
+  {
+    pdev->pClass->DataOut(pdev, epnum); 
+  }  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_DataInStage 
+*         Handle data in stage
+* @param  pdev: device instance
+* @param  epnum: endpoint index
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum, uint8_t *pdata)
+{
+  USBD_EndpointTypeDef    *pep;
+    
+  if(epnum == 0) 
+  {
+    pep = &pdev->ep_in[0];
+    
+    if ( pdev->ep0_state == USBD_EP0_DATA_IN)
+    {
+      if(pep->rem_length > pep->maxpacket)
+      {
+        pep->rem_length -=  pep->maxpacket;
+        
+        USBD_CtlContinueSendData (pdev, 
+                                  pdata, 
+                                  pep->rem_length);
+        
+        /* Prepare endpoint for premature end of transfer */
+        USBD_LL_PrepareReceive (pdev,
+                                0,
+                                NULL,
+                                0);  
+      }
+      else
+      { /* last packet is MPS multiple, so send ZLP packet */
+        if((pep->total_length % pep->maxpacket == 0) &&
+           (pep->total_length >= pep->maxpacket) &&
+             (pep->total_length < pdev->ep0_data_len ))
+        {
+          
+          USBD_CtlContinueSendData(pdev , NULL, 0);
+          pdev->ep0_data_len = 0;
+          
+        /* Prepare endpoint for premature end of transfer */
+        USBD_LL_PrepareReceive (pdev,
+                                0,
+                                NULL,
+                                0);
+        }
+        else
+        {
+          if((pdev->pClass->EP0_TxSent != NULL)&&
+             (pdev->dev_state == USBD_STATE_CONFIGURED))
+          {
+            pdev->pClass->EP0_TxSent(pdev); 
+          }          
+          USBD_CtlReceiveStatus(pdev);
+        }
+      }
+    }
+    if (pdev->dev_test_mode == 1)
+    {
+      USBD_RunTestMode(pdev); 
+      pdev->dev_test_mode = 0;
+    }
+  }
+  else if((pdev->pClass->DataIn != NULL)&& 
+          (pdev->dev_state == USBD_STATE_CONFIGURED))
+  {
+    pdev->pClass->DataIn(pdev, epnum); 
+  }  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_LL_Reset 
+*         Handle Reset event
+* @param  pdev: device instance
+* @retval status
+*/
+
+USBD_StatusTypeDef USBD_LL_Reset(USBD_HandleTypeDef  *pdev)
+{
+  /* Open EP0 OUT */
+  USBD_LL_OpenEP(pdev,
+              0x00,
+              USBD_EP_TYPE_CTRL,
+              USB_MAX_EP0_SIZE);
+  
+  pdev->ep_out[0].maxpacket = USB_MAX_EP0_SIZE;
+  
+  /* Open EP0 IN */
+  USBD_LL_OpenEP(pdev,
+              0x80,
+              USBD_EP_TYPE_CTRL,
+              USB_MAX_EP0_SIZE);
+  
+  pdev->ep_in[0].maxpacket = USB_MAX_EP0_SIZE;
+  /* Upon Reset call user call back */
+  pdev->dev_state = USBD_STATE_DEFAULT;
+  
+  if (pdev->pClassData) 
+    pdev->pClass->DeInit(pdev, pdev->dev_config);  
+ 
+  
+  return USBD_OK;
+}
+
+
+
+
+/**
+* @brief  USBD_LL_Reset 
+*         Handle Reset event
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_SetSpeed(USBD_HandleTypeDef  *pdev, USBD_SpeedTypeDef speed)
+{
+  pdev->dev_speed = speed;
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_Suspend 
+*         Handle Suspend event
+* @param  pdev: device instance
+* @retval status
+*/
+
+USBD_StatusTypeDef USBD_LL_Suspend(USBD_HandleTypeDef  *pdev)
+{
+  pdev->dev_old_state =  pdev->dev_state;
+  pdev->dev_state  = USBD_STATE_SUSPENDED;
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_Resume 
+*         Handle Resume event
+* @param  pdev: device instance
+* @retval status
+*/
+
+USBD_StatusTypeDef USBD_LL_Resume(USBD_HandleTypeDef  *pdev)
+{
+  pdev->dev_state = pdev->dev_old_state;  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_SOF 
+*         Handle SOF event
+* @param  pdev: device instance
+* @retval status
+*/
+
+USBD_StatusTypeDef USBD_LL_SOF(USBD_HandleTypeDef  *pdev)
+{
+  if(pdev->dev_state == USBD_STATE_CONFIGURED)
+  {
+    if(pdev->pClass->SOF != NULL)
+    {
+      pdev->pClass->SOF(pdev);
+    }
+  }
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_IsoINIncomplete 
+*         Handle iso in incomplete event
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_IsoINIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum)
+{
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_IsoOUTIncomplete 
+*         Handle iso out incomplete event
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_IsoOUTIncomplete(USBD_HandleTypeDef  *pdev, uint8_t epnum)
+{
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_DevConnected 
+*         Handle device connection event
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_DevConnected(USBD_HandleTypeDef  *pdev)
+{
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_DevDisconnected 
+*         Handle device disconnection event
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef USBD_LL_DevDisconnected(USBD_HandleTypeDef  *pdev)
+{
+  /* Free Class Resources */
+  pdev->dev_state = USBD_STATE_DEFAULT;
+  pdev->pClass->DeInit(pdev, pdev->dev_config);  
+   
+  return USBD_OK;
+}
+/**
+* @}
+*/ 
+
+
+/**
+* @}
+*/ 
+
+
+/**
+* @}
+*/ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+
diff --git a/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.c b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.c
new file mode 100644
index 0000000..7701a6d
--- /dev/null
+++ b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ctlreq.c
@@ -0,0 +1,782 @@
+/**
+  ******************************************************************************
+  * @file    usbd_req.c
+  * @author  MCD Application Team
+  * @version V2.4.2
+  * @date    11-December-2015 
+  * @brief   This file provides the standard USB requests following chapter 9.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2015 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 "usbd_ctlreq.h"
+#include "usbd_ioreq.h"
+
+
+/** @addtogroup STM32_USBD_STATE_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup USBD_REQ 
+  * @brief USB standard requests module
+  * @{
+  */ 
+
+/** @defgroup USBD_REQ_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Variables
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_FunctionPrototypes
+  * @{
+  */ 
+static void USBD_GetDescriptor(USBD_HandleTypeDef *pdev , 
+                               USBD_SetupReqTypedef *req);
+
+static void USBD_SetAddress(USBD_HandleTypeDef *pdev , 
+                            USBD_SetupReqTypedef *req);
+
+static void USBD_SetConfig(USBD_HandleTypeDef *pdev , 
+                           USBD_SetupReqTypedef *req);
+
+static void USBD_GetConfig(USBD_HandleTypeDef *pdev , 
+                           USBD_SetupReqTypedef *req);
+
+static void USBD_GetStatus(USBD_HandleTypeDef *pdev , 
+                           USBD_SetupReqTypedef *req);
+
+static void USBD_SetFeature(USBD_HandleTypeDef *pdev , 
+                            USBD_SetupReqTypedef *req);
+
+static void USBD_ClrFeature(USBD_HandleTypeDef *pdev , 
+                            USBD_SetupReqTypedef *req);
+
+static uint8_t USBD_GetLen(uint8_t *buf);
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_REQ_Private_Functions
+  * @{
+  */ 
+
+
+/**
+* @brief  USBD_StdDevReq
+*         Handle standard usb device requests
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_StdDevReq (USBD_HandleTypeDef *pdev , USBD_SetupReqTypedef  *req)
+{
+  USBD_StatusTypeDef ret = USBD_OK;  
+  
+  switch (req->bRequest) 
+  {
+  case USB_REQ_GET_DESCRIPTOR: 
+    
+    USBD_GetDescriptor (pdev, req) ;
+    break;
+    
+  case USB_REQ_SET_ADDRESS:                      
+    USBD_SetAddress(pdev, req);
+    break;
+    
+  case USB_REQ_SET_CONFIGURATION:                    
+    USBD_SetConfig (pdev , req);
+    break;
+    
+  case USB_REQ_GET_CONFIGURATION:                 
+    USBD_GetConfig (pdev , req);
+    break;
+    
+  case USB_REQ_GET_STATUS:                                  
+    USBD_GetStatus (pdev , req);
+    break;
+    
+    
+  case USB_REQ_SET_FEATURE:   
+    USBD_SetFeature (pdev , req);    
+    break;
+    
+  case USB_REQ_CLEAR_FEATURE:                                   
+    USBD_ClrFeature (pdev , req);
+    break;
+    
+  default:  
+    USBD_CtlError(pdev , req);
+    break;
+  }
+  
+  return ret;
+}
+
+/**
+* @brief  USBD_StdItfReq
+*         Handle standard usb interface requests
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_StdItfReq (USBD_HandleTypeDef *pdev , USBD_SetupReqTypedef  *req)
+{
+  USBD_StatusTypeDef ret = USBD_OK; 
+  
+  switch (pdev->dev_state) 
+  {
+  case USBD_STATE_CONFIGURED:
+    
+    if (LOBYTE(req->wIndex) <= USBD_MAX_NUM_INTERFACES) 
+    {
+      pdev->pClass->Setup (pdev, req); 
+      
+      if((req->wLength == 0)&& (ret == USBD_OK))
+      {
+         USBD_CtlSendStatus(pdev);
+      }
+    } 
+    else 
+    {                                               
+       USBD_CtlError(pdev , req);
+    }
+    break;
+    
+  default:
+     USBD_CtlError(pdev , req);
+    break;
+  }
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_StdEPReq
+*         Handle standard usb endpoint requests
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_StdEPReq (USBD_HandleTypeDef *pdev , USBD_SetupReqTypedef  *req)
+{
+  
+  uint8_t   ep_addr;
+  USBD_StatusTypeDef ret = USBD_OK; 
+  USBD_EndpointTypeDef   *pep;
+  ep_addr  = LOBYTE(req->wIndex);   
+  
+  /* Check if it is a class request */
+  if ((req->bmRequest & 0x60) == 0x20)
+  {
+    pdev->pClass->Setup (pdev, req);
+    
+    return USBD_OK;
+  }
+  
+  switch (req->bRequest) 
+  {
+    
+  case USB_REQ_SET_FEATURE :
+    
+    switch (pdev->dev_state) 
+    {
+    case USBD_STATE_ADDRESSED:          
+      if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+      {
+        USBD_LL_StallEP(pdev , ep_addr);
+      }
+      break;	
+      
+    case USBD_STATE_CONFIGURED:   
+      if (req->wValue == USB_FEATURE_EP_HALT)
+      {
+        if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+        { 
+          USBD_LL_StallEP(pdev , ep_addr);
+          
+        }
+      }
+      pdev->pClass->Setup (pdev, req);   
+      USBD_CtlSendStatus(pdev);
+      
+      break;
+      
+    default:                         
+      USBD_CtlError(pdev , req);
+      break;    
+    }
+    break;
+    
+  case USB_REQ_CLEAR_FEATURE :
+    
+    switch (pdev->dev_state) 
+    {
+    case USBD_STATE_ADDRESSED:          
+      if ((ep_addr != 0x00) && (ep_addr != 0x80)) 
+      {
+        USBD_LL_StallEP(pdev , ep_addr);
+      }
+      break;	
+      
+    case USBD_STATE_CONFIGURED:   
+      if (req->wValue == USB_FEATURE_EP_HALT)
+      {
+        if ((ep_addr & 0x7F) != 0x00) 
+        {        
+          USBD_LL_ClearStallEP(pdev , ep_addr);
+          pdev->pClass->Setup (pdev, req);
+        }
+        USBD_CtlSendStatus(pdev);
+      }
+      break;
+      
+    default:                         
+      USBD_CtlError(pdev , req);
+      break;    
+    }
+    break;
+    
+  case USB_REQ_GET_STATUS:                  
+    switch (pdev->dev_state) 
+    {
+    case USBD_STATE_ADDRESSED:          
+      if ((ep_addr & 0x7F) != 0x00) 
+      {
+        USBD_LL_StallEP(pdev , ep_addr);
+      }
+      break;	
+      
+    case USBD_STATE_CONFIGURED:
+      pep = ((ep_addr & 0x80) == 0x80) ? &pdev->ep_in[ep_addr & 0x7F]:\
+                                         &pdev->ep_out[ep_addr & 0x7F];
+      if(USBD_LL_IsStallEP(pdev, ep_addr))
+      {
+        pep->status = 0x0001;     
+      }
+      else
+      {
+        pep->status = 0x0000;  
+      }
+      
+      USBD_CtlSendData (pdev,
+                        (uint8_t *)&pep->status,
+                        2);
+      break;
+      
+    default:                         
+      USBD_CtlError(pdev , req);
+      break;
+    }
+    break;
+    
+  default:
+    break;
+  }
+  return ret;
+}
+/**
+* @brief  USBD_GetDescriptor
+*         Handle Get Descriptor requests
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_GetDescriptor(USBD_HandleTypeDef *pdev , 
+                               USBD_SetupReqTypedef *req)
+{
+  uint16_t len;
+  uint8_t *pbuf;
+  
+    
+  switch (req->wValue >> 8)
+  { 
+#if (USBD_LPM_ENABLED == 1)
+  case USB_DESC_TYPE_BOS:
+    pbuf = pdev->pDesc->GetBOSDescriptor(pdev->dev_speed, &len);
+    break;
+#endif    
+  case USB_DESC_TYPE_DEVICE:
+    pbuf = pdev->pDesc->GetDeviceDescriptor(pdev->dev_speed, &len);
+    break;
+    
+  case USB_DESC_TYPE_CONFIGURATION:     
+    if(pdev->dev_speed == USBD_SPEED_HIGH )   
+    {
+      pbuf   = (uint8_t *)pdev->pClass->GetHSConfigDescriptor(&len);
+      pbuf[1] = USB_DESC_TYPE_CONFIGURATION;
+    }
+    else
+    {
+      pbuf   = (uint8_t *)pdev->pClass->GetFSConfigDescriptor(&len);
+      pbuf[1] = USB_DESC_TYPE_CONFIGURATION;
+    }
+    break;
+    
+  case USB_DESC_TYPE_STRING:
+    switch ((uint8_t)(req->wValue))
+    {
+    case USBD_IDX_LANGID_STR:
+     pbuf = pdev->pDesc->GetLangIDStrDescriptor(pdev->dev_speed, &len);        
+      break;
+      
+    case USBD_IDX_MFC_STR:
+      pbuf = pdev->pDesc->GetManufacturerStrDescriptor(pdev->dev_speed, &len);
+      break;
+      
+    case USBD_IDX_PRODUCT_STR:
+      pbuf = pdev->pDesc->GetProductStrDescriptor(pdev->dev_speed, &len);
+      break;
+      
+    case USBD_IDX_SERIAL_STR:
+      pbuf = pdev->pDesc->GetSerialStrDescriptor(pdev->dev_speed, &len);
+      break;
+      
+    case USBD_IDX_CONFIG_STR:
+      pbuf = pdev->pDesc->GetConfigurationStrDescriptor(pdev->dev_speed, &len);
+      break;
+      
+    case USBD_IDX_INTERFACE_STR:
+      pbuf = pdev->pDesc->GetInterfaceStrDescriptor(pdev->dev_speed, &len);
+      break;
+      
+    default:
+#if (USBD_SUPPORT_USER_STRING == 1)
+      pbuf = pdev->pClass->GetUsrStrDescriptor(pdev, (req->wValue) , &len);
+      break;
+#else      
+       USBD_CtlError(pdev , req);
+      return;
+#endif   
+    }
+    break;
+  case USB_DESC_TYPE_DEVICE_QUALIFIER:                   
+
+    if(pdev->dev_speed == USBD_SPEED_HIGH  )   
+    {
+      pbuf   = (uint8_t *)pdev->pClass->GetDeviceQualifierDescriptor(&len);
+      break;
+    }
+    else
+    {
+      USBD_CtlError(pdev , req);
+      return;
+    } 
+
+  case USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION:
+    if(pdev->dev_speed == USBD_SPEED_HIGH  )   
+    {
+      pbuf   = (uint8_t *)pdev->pClass->GetOtherSpeedConfigDescriptor(&len);
+      pbuf[1] = USB_DESC_TYPE_OTHER_SPEED_CONFIGURATION;
+      break; 
+    }
+    else
+    {
+      USBD_CtlError(pdev , req);
+      return;
+    }
+
+  default: 
+     USBD_CtlError(pdev , req);
+    return;
+  }
+  
+  if((len != 0)&& (req->wLength != 0))
+  {
+    
+    len = MIN(len , req->wLength);
+    
+    USBD_CtlSendData (pdev, 
+                      pbuf,
+                      len);
+  }
+  
+}
+
+/**
+* @brief  USBD_SetAddress
+*         Set device address
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_SetAddress(USBD_HandleTypeDef *pdev , 
+                            USBD_SetupReqTypedef *req)
+{
+  uint8_t  dev_addr; 
+  
+  if ((req->wIndex == 0) && (req->wLength == 0)) 
+  {
+    dev_addr = (uint8_t)(req->wValue) & 0x7F;     
+    
+    if (pdev->dev_state == USBD_STATE_CONFIGURED) 
+    {
+      USBD_CtlError(pdev , req);
+    } 
+    else 
+    {
+      pdev->dev_address = dev_addr;
+      USBD_LL_SetUSBAddress(pdev, dev_addr);               
+      USBD_CtlSendStatus(pdev);                         
+      
+      if (dev_addr != 0) 
+      {
+        pdev->dev_state  = USBD_STATE_ADDRESSED;
+      } 
+      else 
+      {
+        pdev->dev_state  = USBD_STATE_DEFAULT; 
+      }
+    }
+  } 
+  else 
+  {
+     USBD_CtlError(pdev , req);                        
+  } 
+}
+
+/**
+* @brief  USBD_SetConfig
+*         Handle Set device configuration request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_SetConfig(USBD_HandleTypeDef *pdev , 
+                           USBD_SetupReqTypedef *req)
+{
+  
+  static uint8_t  cfgidx;
+  
+  cfgidx = (uint8_t)(req->wValue);                 
+  
+  if (cfgidx > USBD_MAX_NUM_CONFIGURATION ) 
+  {            
+     USBD_CtlError(pdev , req);                              
+  } 
+  else 
+  {
+    switch (pdev->dev_state) 
+    {
+    case USBD_STATE_ADDRESSED:
+      if (cfgidx) 
+      {                                			   							   							   				
+        pdev->dev_config = cfgidx;
+        pdev->dev_state = USBD_STATE_CONFIGURED;
+        if(USBD_SetClassConfig(pdev , cfgidx) == USBD_FAIL)
+        {
+          USBD_CtlError(pdev , req);  
+          return;
+        }
+        USBD_CtlSendStatus(pdev);
+      }
+      else 
+      {
+         USBD_CtlSendStatus(pdev);
+      }
+      break;
+      
+    case USBD_STATE_CONFIGURED:
+      if (cfgidx == 0) 
+      {                           
+        pdev->dev_state = USBD_STATE_ADDRESSED;
+        pdev->dev_config = cfgidx;          
+        USBD_ClrClassConfig(pdev , cfgidx);
+        USBD_CtlSendStatus(pdev);
+        
+      } 
+      else  if (cfgidx != pdev->dev_config) 
+      {
+        /* Clear old configuration */
+        USBD_ClrClassConfig(pdev , pdev->dev_config);
+        
+        /* set new configuration */
+        pdev->dev_config = cfgidx;
+        if(USBD_SetClassConfig(pdev , cfgidx) == USBD_FAIL)
+        {
+          USBD_CtlError(pdev , req);  
+          return;
+        }
+        USBD_CtlSendStatus(pdev);
+      }
+      else
+      {
+        USBD_CtlSendStatus(pdev);
+      }
+      break;
+      
+    default:					
+       USBD_CtlError(pdev , req);                     
+      break;
+    }
+  }
+}
+
+/**
+* @brief  USBD_GetConfig
+*         Handle Get device configuration request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_GetConfig(USBD_HandleTypeDef *pdev , 
+                           USBD_SetupReqTypedef *req)
+{
+
+  if (req->wLength != 1) 
+  {                   
+     USBD_CtlError(pdev , req);
+  }
+  else 
+  {
+    switch (pdev->dev_state )  
+    {
+    case USBD_STATE_ADDRESSED:                     
+      pdev->dev_default_config = 0;
+      USBD_CtlSendData (pdev, 
+                        (uint8_t *)&pdev->dev_default_config,
+                        1);
+      break;
+      
+    case USBD_STATE_CONFIGURED:   
+      
+      USBD_CtlSendData (pdev, 
+                        (uint8_t *)&pdev->dev_config,
+                        1);
+      break;
+      
+    default:
+       USBD_CtlError(pdev , req);
+      break;
+    }
+  }
+}
+
+/**
+* @brief  USBD_GetStatus
+*         Handle Get Status request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_GetStatus(USBD_HandleTypeDef *pdev , 
+                           USBD_SetupReqTypedef *req)
+{
+  
+    
+  switch (pdev->dev_state) 
+  {
+  case USBD_STATE_ADDRESSED:
+  case USBD_STATE_CONFIGURED:
+    
+#if ( USBD_SELF_POWERED == 1)
+    pdev->dev_config_status = USB_CONFIG_SELF_POWERED;                                  
+#else
+    pdev->dev_config_status = 0;                                   
+#endif
+                      
+    if (pdev->dev_remote_wakeup) 
+    {
+       pdev->dev_config_status |= USB_CONFIG_REMOTE_WAKEUP;                                
+    }
+    
+    USBD_CtlSendData (pdev, 
+                      (uint8_t *)& pdev->dev_config_status,
+                      2);
+    break;
+    
+  default :
+    USBD_CtlError(pdev , req);                        
+    break;
+  }
+}
+
+
+/**
+* @brief  USBD_SetFeature
+*         Handle Set device feature request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_SetFeature(USBD_HandleTypeDef *pdev , 
+                            USBD_SetupReqTypedef *req)
+{
+
+  if (req->wValue == USB_FEATURE_REMOTE_WAKEUP)
+  {
+    pdev->dev_remote_wakeup = 1;  
+    pdev->pClass->Setup (pdev, req);   
+    USBD_CtlSendStatus(pdev);
+  }
+
+}
+
+
+/**
+* @brief  USBD_ClrFeature
+*         Handle clear device feature request
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval status
+*/
+static void USBD_ClrFeature(USBD_HandleTypeDef *pdev , 
+                            USBD_SetupReqTypedef *req)
+{
+  switch (pdev->dev_state)
+  {
+  case USBD_STATE_ADDRESSED:
+  case USBD_STATE_CONFIGURED:
+    if (req->wValue == USB_FEATURE_REMOTE_WAKEUP) 
+    {
+      pdev->dev_remote_wakeup = 0; 
+      pdev->pClass->Setup (pdev, req);   
+      USBD_CtlSendStatus(pdev);
+    }
+    break;
+    
+  default :
+     USBD_CtlError(pdev , req);
+    break;
+  }
+}
+
+/**
+* @brief  USBD_ParseSetupRequest 
+*         Copy buffer into setup structure
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval None
+*/
+
+void USBD_ParseSetupRequest(USBD_SetupReqTypedef *req, uint8_t *pdata)
+{
+  req->bmRequest     = *(uint8_t *)  (pdata);
+  req->bRequest      = *(uint8_t *)  (pdata +  1);
+  req->wValue        = SWAPBYTE      (pdata +  2);
+  req->wIndex        = SWAPBYTE      (pdata +  4);
+  req->wLength       = SWAPBYTE      (pdata +  6);
+
+}
+
+/**
+* @brief  USBD_CtlError 
+*         Handle USB low level Error
+* @param  pdev: device instance
+* @param  req: usb request
+* @retval None
+*/
+
+void USBD_CtlError( USBD_HandleTypeDef *pdev ,
+                            USBD_SetupReqTypedef *req)
+{
+  USBD_LL_StallEP(pdev , 0x80);
+  USBD_LL_StallEP(pdev , 0);
+}
+
+
+/**
+  * @brief  USBD_GetString
+  *         Convert Ascii string into unicode one
+  * @param  desc : descriptor buffer
+  * @param  unicode : Formatted string buffer (unicode)
+  * @param  len : descriptor length
+  * @retval None
+  */
+void USBD_GetString(uint8_t *desc, uint8_t *unicode, uint16_t *len)
+{
+  uint8_t idx = 0;
+  
+  if (desc != NULL) 
+  {
+    *len =  USBD_GetLen(desc) * 2 + 2;    
+    unicode[idx++] = *len;
+    unicode[idx++] =  USB_DESC_TYPE_STRING;
+    
+    while (*desc != '\0') 
+    {
+      unicode[idx++] = *desc++;
+      unicode[idx++] =  0x00;
+    }
+  } 
+}
+
+/**
+  * @brief  USBD_GetLen
+  *         return the string length
+   * @param  buf : pointer to the ascii string buffer
+  * @retval string length
+  */
+static uint8_t USBD_GetLen(uint8_t *buf)
+{
+    uint8_t  len = 0;
+
+    while (*buf != '\0') 
+    {
+        len++;
+        buf++;
+    }
+
+    return len;
+}
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.c b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.c
new file mode 100644
index 0000000..d66d777
--- /dev/null
+++ b/fw/midi-dials/Middlewares/ST/STM32_USB_Device_Library/Core/Src/usbd_ioreq.c
@@ -0,0 +1,236 @@
+/**
+  ******************************************************************************
+  * @file    usbd_ioreq.c
+  * @author  MCD Application Team
+  * @version V2.4.2
+  * @date    11-December-2015
+  * @brief   This file provides the IO requests APIs for control endpoints.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2015 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 "usbd_ioreq.h"
+
+/** @addtogroup STM32_USB_DEVICE_LIBRARY
+  * @{
+  */
+
+
+/** @defgroup USBD_IOREQ 
+  * @brief control I/O requests module
+  * @{
+  */ 
+
+/** @defgroup USBD_IOREQ_Private_TypesDefinitions
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Defines
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Macros
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Variables
+  * @{
+  */ 
+
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_FunctionPrototypes
+  * @{
+  */ 
+/**
+  * @}
+  */ 
+
+
+/** @defgroup USBD_IOREQ_Private_Functions
+  * @{
+  */ 
+
+/**
+* @brief  USBD_CtlSendData
+*         send data on the ctl pipe
+* @param  pdev: device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be sent
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_CtlSendData (USBD_HandleTypeDef  *pdev, 
+                               uint8_t *pbuf,
+                               uint16_t len)
+{
+  /* Set EP0 State */
+  pdev->ep0_state          = USBD_EP0_DATA_IN;                                      
+  pdev->ep_in[0].total_length = len;
+  pdev->ep_in[0].rem_length   = len;
+ /* Start the transfer */
+  USBD_LL_Transmit (pdev, 0x00, pbuf, len);  
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_CtlContinueSendData
+*         continue sending data on the ctl pipe
+* @param  pdev: device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be sent
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_CtlContinueSendData (USBD_HandleTypeDef  *pdev, 
+                                       uint8_t *pbuf,
+                                       uint16_t len)
+{
+ /* Start the next transfer */
+  USBD_LL_Transmit (pdev, 0x00, pbuf, len);   
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_CtlPrepareRx
+*         receive data on the ctl pipe
+* @param  pdev: device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be received
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_CtlPrepareRx (USBD_HandleTypeDef  *pdev,
+                                  uint8_t *pbuf,                                  
+                                  uint16_t len)
+{
+  /* Set EP0 State */
+  pdev->ep0_state = USBD_EP0_DATA_OUT; 
+  pdev->ep_out[0].total_length = len;
+  pdev->ep_out[0].rem_length   = len;
+  /* Start the transfer */
+  USBD_LL_PrepareReceive (pdev,
+                          0,
+                          pbuf,
+                         len);
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_CtlContinueRx
+*         continue receive data on the ctl pipe
+* @param  pdev: device instance
+* @param  buff: pointer to data buffer
+* @param  len: length of data to be received
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_CtlContinueRx (USBD_HandleTypeDef  *pdev, 
+                                          uint8_t *pbuf,                                          
+                                          uint16_t len)
+{
+
+  USBD_LL_PrepareReceive (pdev,
+                          0,                     
+                          pbuf,                         
+                          len);
+  return USBD_OK;
+}
+/**
+* @brief  USBD_CtlSendStatus
+*         send zero lzngth packet on the ctl pipe
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_CtlSendStatus (USBD_HandleTypeDef  *pdev)
+{
+
+  /* Set EP0 State */
+  pdev->ep0_state = USBD_EP0_STATUS_IN;
+  
+ /* Start the transfer */
+  USBD_LL_Transmit (pdev, 0x00, NULL, 0);   
+  
+  return USBD_OK;
+}
+
+/**
+* @brief  USBD_CtlReceiveStatus
+*         receive zero lzngth packet on the ctl pipe
+* @param  pdev: device instance
+* @retval status
+*/
+USBD_StatusTypeDef  USBD_CtlReceiveStatus (USBD_HandleTypeDef  *pdev)
+{
+  /* Set EP0 State */
+  pdev->ep0_state = USBD_EP0_STATUS_OUT; 
+  
+ /* Start the transfer */  
+  USBD_LL_PrepareReceive ( pdev,
+                    0,
+                    NULL,
+                    0);  
+
+  return USBD_OK;
+}
+
+
+/**
+* @brief  USBD_GetRxCount
+*         returns the received data length
+* @param  pdev: device instance
+* @param  ep_addr: endpoint address
+* @retval Rx Data blength
+*/
+uint16_t  USBD_GetRxCount (USBD_HandleTypeDef  *pdev , uint8_t ep_addr)
+{
+  return USBD_LL_GetRxDataSize(pdev, ep_addr);
+}
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+
+/**
+  * @}
+  */ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/fw/midi-dials/Middlewares/USBMIDI/Inc/usbd_midi.h b/fw/midi-dials/Middlewares/USBMIDI/Inc/usbd_midi.h
new file mode 100644
index 0000000..5b84a5a
--- /dev/null
+++ b/fw/midi-dials/Middlewares/USBMIDI/Inc/usbd_midi.h
@@ -0,0 +1,59 @@
+/**
+  ******************************************************************************
+  * @file    usbd_midi.h
+  ******************************************************************************
+
+  (CC at)2016 by D.F.Mac. @TripArts Music
+
+*/
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USB_MIDI_H
+#define __USB_MIDI_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include  "usbd_ioreq.h"
+
+#define MIDI_IN_EP                                   0x81  /* EP1 for data IN */
+#define MIDI_OUT_EP                                  0x01  /* EP1 for data OUT */
+// #define MIDI_DATA_HS_MAX_PACKET_SIZE                 512  /* Endpoint IN & OUT Packet size */
+#define MIDI_DATA_FS_MAX_PACKET_SIZE                 64  /* Endpoint IN & OUT Packet size */
+#define MIDI_CMD_PACKET_SIZE                         8  /* Control Endpoint Packet size */
+
+#define USB_MIDI_CONFIG_DESC_SIZ                    133//default is 101
+#define MIDI_DATA_IN_PACKET_SIZE                    MIDI_DATA_FS_MAX_PACKET_SIZE
+#define MIDI_DATA_OUT_PACKET_SIZE                   MIDI_DATA_FS_MAX_PACKET_SIZE
+#define APP_RX_DATA_SIZE               				((MIDI_DATA_FS_MAX_PACKET_SIZE) * 4) //2048->256
+
+#define MIDI_IN_FRAME_INTERVAL		1
+
+#define MIDI_OUT_JACK_NUM (1)
+#define MIDI_IN_JACK_NUM (1)
+
+
+typedef struct _USBD_MIDI_ItfTypeDef{
+  uint16_t (*pIf_MidiRx)    (uint8_t *msg, uint16_t length);
+  uint16_t (*pIf_MidiTx)    (uint8_t *msg, uint16_t length);
+}USBD_MIDI_ItfTypeDef;
+
+extern uint8_t APP_Rx_Buffer   [APP_RX_DATA_SIZE];
+extern uint32_t APP_Rx_ptr_in;
+extern uint32_t APP_Rx_ptr_out;
+extern uint32_t APP_Rx_length;
+extern uint8_t  USB_Tx_State;
+
+extern USBD_ClassTypeDef  USBD_MIDI;
+#define USBD_MIDI_CLASS    &USBD_MIDI
+
+uint8_t  USBD_MIDI_RegisterInterface  (USBD_HandleTypeDef   *pdev,
+                                      USBD_MIDI_ItfTypeDef *fops);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* __USB_MIDI_H */
diff --git a/fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c b/fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c
new file mode 100644
index 0000000..b43229c
--- /dev/null
+++ b/fw/midi-dials/Middlewares/USBMIDI/Src/usbd_midi.c
@@ -0,0 +1,199 @@
+/**
+  ******************************************************************************
+  * @file    usbd_midi.c
+  ******************************************************************************
+
+    (CC at)2016 by D.F.Mac. @TripArts Music
+
+*/ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "usbd_midi.h"
+#include "usbd_desc.h"
+#include "stm32f0xx_hal_conf.h"
+#include "usbd_ctlreq.h"
+#include "stm32f0xx_hal.h"
+
+static uint8_t  USBD_MIDI_Init (USBD_HandleTypeDef *pdev, uint8_t cfgidx);
+static uint8_t  USBD_MIDI_DeInit (USBD_HandleTypeDef *pdev, uint8_t cfgidx);
+static uint8_t  USBD_MIDI_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum);
+static uint8_t  USBD_MIDI_DataOut (USBD_HandleTypeDef *pdev, uint8_t epnum);
+
+static uint8_t  *USBD_MIDI_GetCfgDesc (uint16_t *length);
+//uint8_t  *USBD_MIDI_GetDeviceQualifierDescriptor (uint16_t *length);
+USBD_HandleTypeDef *pInstance = NULL; 
+
+uint32_t APP_Rx_ptr_in  = 0;
+uint32_t APP_Rx_ptr_out = 0;
+uint32_t APP_Rx_length  = 0;
+uint8_t  USB_Tx_State = 0;
+
+__ALIGN_BEGIN uint8_t USB_Rx_Buffer[MIDI_DATA_OUT_PACKET_SIZE] __ALIGN_END ;
+__ALIGN_BEGIN uint8_t APP_Rx_Buffer[APP_RX_DATA_SIZE] __ALIGN_END ;
+
+/* USB Standard Device Descriptor */
+/*
+__ALIGN_BEGIN static uint8_t USBD_MIDI_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC] __ALIGN_END =
+{
+  USB_LEN_DEV_QUALIFIER_DESC,
+  USB_DESC_TYPE_DEVICE_QUALIFIER,
+  0x00,
+  0x02,
+  0x00,
+  0x00,
+  0x00,
+  0x40,
+  0x01,
+  0x00,
+};
+*/
+
+/* USB MIDI interface class callbacks structure */
+USBD_ClassTypeDef  USBD_MIDI = 
+{
+  USBD_MIDI_Init,
+  USBD_MIDI_DeInit,
+  NULL,
+  NULL,
+  NULL,
+  USBD_MIDI_DataIn,
+  USBD_MIDI_DataOut,
+  NULL,
+  NULL,
+  NULL,
+  NULL,// HS
+  USBD_MIDI_GetCfgDesc,// FS
+  NULL,// OTHER SPEED
+  NULL,// DEVICE_QUALIFIER
+};
+
+/* USB MIDI device Configuration Descriptor */
+__ALIGN_BEGIN uint8_t USBD_MIDI_CfgDesc[USB_MIDI_CONFIG_DESC_SIZ] __ALIGN_END =
+{
+  // configuration descriptor
+  0x09, 0x02, 0x65 + 6+6+9+9+1+1, 0x00, 0x02, 0x01, 0x00, 0x80, 0x0A,
+
+  // The Audio Interface Collection
+  0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
+  0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
+  0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
+  0x07, 0x24, 0x01, 0x00, 0x01, 0x25 + 6+6+9+9, 0x00,   // Class-Specific MS Interface Header Descriptor
+
+  // MIDI IN JACKS
+  0x06, 0x24, 0x02, 0x01, 0x01, 0x00,//MIDI-IN 1 (embedded)
+  0x06, 0x24, 0x02, 0x02, 0x02, 0x00,//MIDI-IN 1 (external)
+
+  0x06, 0x24, 0x02, 0x01, 0x11, 0x00,//MIDI-IN 2 (embedded)
+  0x06, 0x24, 0x02, 0x02, 0x12, 0x00,//MIDI-IN 2 (external)
+
+  // MIDI OUT JACKS
+  0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,//MIDI-OUT 1 (embedded)
+  0x09, 0x24, 0x03, 0x02, 0x04, 0x01, 0x01, 0x01, 0x00,//MIDI-OUT 1 (external)
+
+  0x09, 0x24, 0x03, 0x01, 0x13, 0x01, 0x12, 0x01, 0x00,//MIDI-OUT 2 (embedded)
+  0x09, 0x24, 0x03, 0x02, 0x14, 0x01, 0x11, 0x01, 0x00,//MIDI-OUT 2 (external)
+
+  // OUT endpoint descriptor
+  0x09, 0x05, MIDI_OUT_EP, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
+  0x06, 0x25, 0x01, 0x02, 0x01, 0x11,
+
+  // IN endpoint descriptor
+  0x09, 0x05, MIDI_IN_EP, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
+  0x06, 0x25, 0x01, 0x02, 0x03, 0x13,
+};
+
+static uint8_t USBD_MIDI_Init(USBD_HandleTypeDef *pdev, uint8_t cfgidx){
+  pInstance = pdev;
+  USBD_LL_OpenEP(pdev,MIDI_IN_EP,USBD_EP_TYPE_BULK,MIDI_DATA_IN_PACKET_SIZE);
+  USBD_LL_OpenEP(pdev,MIDI_OUT_EP,USBD_EP_TYPE_BULK,MIDI_DATA_OUT_PACKET_SIZE);
+  USBD_LL_PrepareReceive(pdev,MIDI_OUT_EP,(uint8_t*)(USB_Rx_Buffer),MIDI_DATA_OUT_PACKET_SIZE);
+  return 0;
+}
+
+static uint8_t USBD_MIDI_DeInit (USBD_HandleTypeDef *pdev, uint8_t cfgidx){
+  pInstance = NULL;
+  USBD_LL_CloseEP(pdev,MIDI_IN_EP);
+  USBD_LL_CloseEP(pdev,MIDI_OUT_EP);
+  return 0;
+}
+
+static uint8_t USBD_MIDI_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum){
+
+  if (USB_Tx_State == 1){
+    USB_Tx_State = 0;
+  }
+  return USBD_OK;
+}
+
+static uint8_t  USBD_MIDI_DataOut (USBD_HandleTypeDef *pdev, uint8_t epnum)
+{      
+  uint16_t USB_Rx_Cnt;
+
+  USBD_MIDI_ItfTypeDef *pmidi;
+  pmidi = (USBD_MIDI_ItfTypeDef *)(pdev->pUserData);
+
+  USB_Rx_Cnt = ((PCD_HandleTypeDef*)pdev->pData)->OUT_ep[epnum].xfer_count;
+
+  pmidi->pIf_MidiRx((uint8_t *)&USB_Rx_Buffer, USB_Rx_Cnt);
+
+  USBD_LL_PrepareReceive(pdev,MIDI_OUT_EP,(uint8_t*)(USB_Rx_Buffer),MIDI_DATA_OUT_PACKET_SIZE);
+  return USBD_OK;
+}
+
+void USBD_MIDI_SendPacket (){
+  uint16_t USB_Tx_ptr;
+  uint16_t USB_Tx_length;
+
+  if(USB_Tx_State != 1){
+    if (APP_Rx_ptr_out == APP_RX_DATA_SIZE){
+      APP_Rx_ptr_out = 0;
+    }
+
+    if(APP_Rx_ptr_out == APP_Rx_ptr_in){
+      USB_Tx_State = 0;
+      return;
+    }
+
+    if(APP_Rx_ptr_out > APP_Rx_ptr_in){
+      APP_Rx_length = APP_RX_DATA_SIZE - APP_Rx_ptr_out;
+    }else{
+      APP_Rx_length = APP_Rx_ptr_in - APP_Rx_ptr_out;
+    }
+
+    if (APP_Rx_length > MIDI_DATA_IN_PACKET_SIZE){
+      USB_Tx_ptr = APP_Rx_ptr_out;
+      USB_Tx_length = MIDI_DATA_IN_PACKET_SIZE;
+      APP_Rx_ptr_out += MIDI_DATA_IN_PACKET_SIZE;
+      APP_Rx_length -= MIDI_DATA_IN_PACKET_SIZE;
+    }else{
+      USB_Tx_ptr = APP_Rx_ptr_out;
+      USB_Tx_length = APP_Rx_length;
+      APP_Rx_ptr_out += APP_Rx_length;
+      APP_Rx_length = 0;
+    }
+    USB_Tx_State = 1;
+    USBD_LL_Transmit (pInstance, MIDI_IN_EP,(uint8_t*)&APP_Rx_Buffer[USB_Tx_ptr],USB_Tx_length);
+  }
+}
+
+static uint8_t *USBD_MIDI_GetCfgDesc (uint16_t *length){
+  *length = sizeof (USBD_MIDI_CfgDesc);
+  return USBD_MIDI_CfgDesc;
+}
+
+//uint8_t *USBD_MIDI_GetDeviceQualifierDescriptor (uint16_t *length){
+//  *length = sizeof (USBD_MIDI_DeviceQualifierDesc);
+//  return USBD_MIDI_DeviceQualifierDesc;
+//}
+
+uint8_t USBD_MIDI_RegisterInterface(USBD_HandleTypeDef *pdev, USBD_MIDI_ItfTypeDef *fops)
+{
+  uint8_t ret = USBD_FAIL;
+  
+  if(fops != NULL){
+    pdev->pUserData= fops;
+    ret = USBD_OK;    
+  }
+  
+  return ret;
+}
-- 
cgit