STM32 USB Virtual Com Port driver v1.2.0

This commit is contained in:
Solomon Peachy 2019-12-11 00:40:49 -05:00
parent 0b8473a7bc
commit 7b9b359c2d
5 changed files with 1077 additions and 0 deletions

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/**
******************************************************************************
* @file usb_conf.h
* @author MCD Application Team
* @version V1.2.0
* @date 09-November-2015
* @brief General low level driver configuration
******************************************************************************
* @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_CONF__H__
#define __USB_CONF__H__
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"
#define USE_USB_OTG_FS
/** @addtogroup USB_OTG_DRIVER
* @{
*/
/** @defgroup USB_CONF
* @brief USB low level driver configuration file
* @{
*/
/** @defgroup USB_CONF_Exported_Defines
* @{
*/
/* USB Core and PHY interface configuration.
Tip: To avoid modifying these defines each time you need to change the USB
configuration, you can declare the needed define in your toolchain
compiler preprocessor.
*/
/****************** USB OTG FS PHY CONFIGURATION *******************************
* The USB OTG FS Core supports one on-chip Full Speed PHY.
*
* The USE_EMBEDDED_PHY symbol is defined in the project compiler preprocessor
* when FS core is used.
*******************************************************************************/
#ifndef USE_USB_OTG_FS
/* #define USE_USB_OTG_FS */
#endif /* USE_USB_OTG_FS */
#ifdef USE_USB_OTG_FS
#define USB_OTG_FS_CORE
#endif
/****************** USB OTG HS PHY CONFIGURATION *******************************
* The USB OTG HS Core supports two PHY interfaces:
* (i) An ULPI interface for the external High Speed PHY: the USB HS Core will
* operate in High speed mode
* (ii) An on-chip Full Speed PHY: the USB HS Core will operate in Full speed mode
*
* You can select the PHY to be used using one of these two defines:
* (i) USE_ULPI_PHY: if the USB OTG HS Core is to be used in High speed mode
* (ii) USE_EMBEDDED_PHY: if the USB OTG HS Core is to be used in Full speed mode
*
* Notes:
* - The USE_ULPI_PHY symbol is defined in the project compiler preprocessor as
* default PHY when HS core is used.
* - On STM322xG-EVAL and STM324xG-EVAL boards, only configuration(i) is available.
* Configuration (ii) need a different hardware, for more details refer to your
* STM32 device datasheet.
*******************************************************************************/
#ifndef USE_USB_OTG_HS
/* #define USE_USB_OTG_HS */
#endif /* USE_USB_OTG_HS */
#ifndef USE_ULPI_PHY
/* #define USE_ULPI_PHY */
#endif /* USE_ULPI_PHY */
#ifndef USE_EMBEDDED_PHY
/* #define USE_EMBEDDED_PHY */
#endif /* USE_EMBEDDED_PHY */
#ifdef USE_USB_OTG_HS
#define USB_OTG_HS_CORE
#endif
/*******************************************************************************
* FIFO Size Configuration in Device mode
*
* (i) Receive data FIFO size = RAM for setup packets +
* OUT endpoint control information +
* data OUT packets + miscellaneous
* Space = ONE 32-bits words
* --> RAM for setup packets = 10 spaces
* (n is the nbr of CTRL EPs the device core supports)
* --> OUT EP CTRL info = 1 space
* (one space for status information written to the FIFO along with each
* received packet)
* --> data OUT packets = (Largest Packet Size / 4) + 1 spaces
* (MINIMUM to receive packets)
* --> OR data OUT packets = at least 2*(Largest Packet Size / 4) + 1 spaces
* (if high-bandwidth EP is enabled or multiple isochronous EPs)
* --> miscellaneous = 1 space per OUT EP
* (one space for transfer complete status information also pushed to the
* FIFO with each endpoint's last packet)
*
* (ii)MINIMUM RAM space required for each IN EP Tx FIFO = MAX packet size for
* that particular IN EP. More space allocated in the IN EP Tx FIFO results
* in a better performance on the USB and can hide latencies on the AHB.
*
* (iii) TXn min size = 16 words. (n : Transmit FIFO index)
* (iv) When a TxFIFO is not used, the Configuration should be as follows:
* case 1 : n > m and Txn is not used (n,m : Transmit FIFO indexes)
* --> Txm can use the space allocated for Txn.
* case2 : n < m and Txn is not used (n,m : Transmit FIFO indexes)
* --> Txn should be configured with the minimum space of 16 words
* (v) The FIFO is used optimally when used TxFIFOs are allocated in the top
* of the FIFO.Ex: use EP1 and EP2 as IN instead of EP1 and EP3 as IN ones.
* (vi) In HS case 12 FIFO locations should be reserved for internal DMA registers
* so total FIFO size should be 1012 Only instead of 1024
*******************************************************************************/
/****************** USB OTG HS CONFIGURATION **********************************/
#ifdef USB_OTG_HS_CORE
#define RX_FIFO_HS_SIZE 512
#define TX0_FIFO_HS_SIZE 64
#define TX1_FIFO_HS_SIZE 372
#define TX2_FIFO_HS_SIZE 64
#define TX3_FIFO_HS_SIZE 0
#define TX4_FIFO_HS_SIZE 0
#define TX5_FIFO_HS_SIZE 0
/* #define USB_OTG_HS_SOF_OUTPUT_ENABLED */
#ifdef USE_ULPI_PHY
#define USB_OTG_ULPI_PHY_ENABLED
#endif
#ifdef USE_EMBEDDED_PHY
#define USB_OTG_EMBEDDED_PHY_ENABLED
/* wakeup is working only when HS core is configured in FS mode */
/* #define USB_OTG_HS_LOW_PWR_MGMT_SUPPORT */
#endif
/* #define USB_OTG_HS_INTERNAL_DMA_ENABLED */ /* Be aware that enabling DMA mode will result in data being sent only by
multiple of 4 packet sizes. This is due to the fact that USB DMA does
not allow sending data from non word-aligned addresses.
For this specific application, it is advised to not enable this option
unless required. */
#define USB_OTG_HS_DEDICATED_EP1_ENABLED
#endif
/****************** USB OTG FS CONFIGURATION **********************************/
#ifdef USB_OTG_FS_CORE
#define RX_FIFO_FS_SIZE 128
#define TX0_FIFO_FS_SIZE 32
#define TX1_FIFO_FS_SIZE 128
#define TX2_FIFO_FS_SIZE 32
#define TX3_FIFO_FS_SIZE 0
/* #define USB_OTG_FS_LOW_PWR_MGMT_SUPPORT */
/* #define USB_OTG_FS_SOF_OUTPUT_ENABLED */
#endif
/****************** USB OTG MISC CONFIGURATION ********************************/
// #define VBUS_SENSING_ENABLED
/****************** USB OTG MODE CONFIGURATION ********************************/
/* #define USE_HOST_MODE */
#define USE_DEVICE_MODE
/* #define USE_OTG_MODE */
#ifndef USB_OTG_FS_CORE
#ifndef USB_OTG_HS_CORE
#error "USB_OTG_HS_CORE or USB_OTG_FS_CORE should be defined"
#endif
#endif
#ifndef USE_DEVICE_MODE
#ifndef USE_HOST_MODE
#error "USE_DEVICE_MODE or USE_HOST_MODE should be defined"
#endif
#endif
#ifndef USE_USB_OTG_HS
#ifndef USE_USB_OTG_FS
#error "USE_USB_OTG_HS or USE_USB_OTG_FS should be defined"
#endif
#else /* USE_USB_OTG_HS */
#ifndef USE_ULPI_PHY
#ifndef USE_EMBEDDED_PHY
#error "USE_ULPI_PHY or USE_EMBEDDED_PHY should be defined"
#endif
#endif
#endif
/****************** C Compilers dependant keywords ****************************/
/* 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 */
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#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__ */
#else
#define __ALIGN_BEGIN
#define __ALIGN_END
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
/* __packed keyword used to decrease the data type alignment to 1-byte */
#if defined (__CC_ARM) /* ARM Compiler */
#define __packed __packed
#elif defined (__ICCARM__) /* IAR Compiler */
#define __packed __packed
#elif defined ( __GNUC__ ) /* GNU Compiler */
#ifndef __packed
#define __packed __attribute__ ((__packed__))
#endif
#elif defined (__TASKING__) /* TASKING Compiler */
#define __packed __unaligned
#endif /* __CC_ARM */
/**
* @}
*/
/** @defgroup USB_CONF_Exported_Types
* @{
*/
/**
* @}
*/
/** @defgroup USB_CONF_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USB_CONF_Exported_Variables
* @{
*/
/**
* @}
*/
/** @defgroup USB_CONF_Exported_FunctionsPrototype
* @{
*/
/**
* @}
*/
#endif /* __USB_CONF__H__ */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file usbd_conf.h
* @author MCD Application Team
* @version V1.2.0
* @date 09-November-2015
* @brief USB Device configuration 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_CONF__H__
#define __USBD_CONF__H__
/* Includes ------------------------------------------------------------------*/
#include "usb_conf.h"
/** @defgroup USB_CONF_Exported_Defines
* @{
*/
#define USBD_CFG_MAX_NUM 1
#define USBD_ITF_MAX_NUM 1
#define USBD_SELF_POWERED
#define USB_MAX_STR_DESC_SIZ 255
/** @defgroup USB_VCP_Class_Layer_Parameter
* @{
*/
#define CDC_IN_EP 0x81 /* EP1 for data IN */
#define CDC_OUT_EP 0x01 /* EP1 for data OUT */
#define CDC_CMD_EP 0x82 /* EP2 for CDC commands */
/* CDC Endpoints parameters: you can fine tune these values depending on the needed baudrates and performance. */
#ifdef USE_USB_OTG_HS
#define CDC_DATA_MAX_PACKET_SIZE 512 /* Endpoint IN & OUT Packet size */
#define CDC_CMD_PACKET_SZE 8 /* Control Endpoint Packet size */
#define CDC_IN_FRAME_INTERVAL 40 /* Number of micro-frames between IN transfers */
#define APP_RX_DATA_SIZE 2048 /* Total size of IN buffer:
APP_RX_DATA_SIZE*8/MAX_BAUDARATE*1000 should be > CDC_IN_FRAME_INTERVAL*8 */
#else
#define CDC_DATA_MAX_PACKET_SIZE 64 /* Endpoint IN & OUT Packet size */
#define CDC_CMD_PACKET_SZE 8 /* Control Endpoint Packet size */
#ifndef CDC_IN_FRAME_INTERVAL
#define CDC_IN_FRAME_INTERVAL 5 /* Number of frames between IN transfers */
#endif // CDC_IN_FRAME_INTERVAL
#ifndef APP_RX_DATA_SIZE
#define APP_RX_DATA_SIZE 2048 /* Total size of IN buffer:
APP_RX_DATA_SIZE*8/MAX_BAUDARATE*1000 should be > CDC_IN_FRAME_INTERVAL */
#endif // APP_RX_DATA_SIZE
#endif /* USE_USB_OTG_HS */
#define APP_FOPS VCP_fops
/**
* @}
*/
/** @defgroup USB_CONF_Exported_Types
* @{
*/
/**
* @}
*/
/** @defgroup USB_CONF_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USB_CONF_Exported_Variables
* @{
*/
/**
* @}
*/
/** @defgroup USB_CONF_Exported_FunctionsPrototype
* @{
*/
/**
* @}
*/
#endif //__USBD_CONF__H__
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file usbd_desc.h
* @author MCD Application Team
* @version V1.2.0
* @date 09-November-2015
* @brief header file for the usbd_desc.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_DESC_H
#define __USB_DESC_H
/* Includes ------------------------------------------------------------------*/
#include "usbd_req.h"
/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* @{
*/
/** @defgroup USB_DESC
* @brief general defines for the usb device library file
* @{
*/
/** @defgroup USB_DESC_Exported_Defines
* @{
*/
#define USB_DEVICE_DESCRIPTOR_TYPE 0x01
#define USB_CONFIGURATION_DESCRIPTOR_TYPE 0x02
#define USB_STRING_DESCRIPTOR_TYPE 0x03
#define USB_INTERFACE_DESCRIPTOR_TYPE 0x04
#define USB_ENDPOINT_DESCRIPTOR_TYPE 0x05
#define USB_SIZ_DEVICE_DESC 18
#define USB_SIZ_STRING_LANGID 4
#define DEVICE_ID ((__IO uint32_t *)0x1FFF7A10)
#define USB_SIZ_STRING_SERIAL 0x1A
/**
* @}
*/
/** @defgroup USBD_DESC_Exported_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_DESC_Exported_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_DESC_Exported_Variables
* @{
*/
extern uint8_t USBD_DeviceDesc[USB_SIZ_DEVICE_DESC];
extern uint8_t USBD_StrDesc[USB_MAX_STR_DESC_SIZ];
extern uint8_t USBD_OtherSpeedCfgDesc[USB_LEN_CFG_DESC];
extern uint8_t USBD_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC];
extern uint8_t USBD_LangIDDesc[USB_SIZ_STRING_LANGID];
extern USBD_DEVICE USR_desc;
/**
* @}
*/
/** @defgroup USBD_DESC_Exported_FunctionsPrototype
* @{
*/
uint8_t *USBD_USR_DeviceDescriptor(uint8_t speed, uint16_t *length);
uint8_t *USBD_USR_LangIDStrDescriptor(uint8_t speed, uint16_t *length);
uint8_t *USBD_USR_ManufacturerStrDescriptor(uint8_t speed, uint16_t *length);
uint8_t *USBD_USR_ProductStrDescriptor(uint8_t speed, uint16_t *length);
uint8_t *USBD_USR_SerialStrDescriptor(uint8_t speed, uint16_t *length);
uint8_t *USBD_USR_ConfigStrDescriptor(uint8_t speed, uint16_t *length);
uint8_t *USBD_USR_InterfaceStrDescriptor(uint8_t speed, uint16_t *length);
#ifdef USB_SUPPORT_USER_STRING_DESC
uint8_t *USBD_USR_USRStringDesc (uint8_t speed, uint8_t idx, uint16_t *length);
#endif /* USB_SUPPORT_USER_STRING_DESC */
/**
* @}
*/
#endif /* __USBD_DESC_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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/**
******************************************************************************
* @file usbd_desc.c
* @author MCD Application Team
* @version V1.2.0
* @date 09-November-2015
* @brief This file provides the USBD descriptors and string formating method.
******************************************************************************
* @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"
#include "usbd_desc.h"
#include "usbd_req.h"
#include "usbd_conf.h"
#include "usb_regs.h"
/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_DESC
* @brief USBD descriptors module
* @{
*/
/** @defgroup USBD_DESC_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_DESC_Private_Defines
* @{
*/
#ifndef USBD_VID
#define USBD_VID 0x0483
#endif
#ifndef USBD_PID
#define USBD_PID 0x5740
#endif
/** @defgroup USB_String_Descriptors
* @{
*/
#define USBD_LANGID_STRING 0x409
#ifndef USBD_MANUFACTURER_STRING
#define USBD_MANUFACTURER_STRING "STMicroelectronics"
#endif
#ifndef USBD_PRODUCT_STRING
#define USBD_PRODUCT_STRING "STM32 Virtual ComPort"
#endif
#define USBD_CONFIGURATION_STRING "VCP Config"
#define USBD_INTERFACE_STRING "VCP Interface"
/**
* @}
*/
/** @defgroup USBD_DESC_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_DESC_Private_Variables
* @{
*/
USBD_DEVICE USR_desc =
{
USBD_USR_DeviceDescriptor,
USBD_USR_LangIDStrDescriptor,
USBD_USR_ManufacturerStrDescriptor,
USBD_USR_ProductStrDescriptor,
USBD_USR_SerialStrDescriptor,
USBD_USR_ConfigStrDescriptor,
USBD_USR_InterfaceStrDescriptor,
};
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
/* USB Standard Device Descriptor */
__ALIGN_BEGIN uint8_t USBD_DeviceDesc[USB_SIZ_DEVICE_DESC] __ALIGN_END =
{
0x12, /*bLength */
USB_DEVICE_DESCRIPTOR_TYPE, /*bDescriptorType*/
0x00, /*bcdUSB */
0x02,
0x00, /*bDeviceClass*/
0x00, /*bDeviceSubClass*/
0x00, /*bDeviceProtocol*/
USB_OTG_MAX_EP0_SIZE, /*bMaxPacketSize*/
LOBYTE(USBD_VID), /*idVendor*/
HIBYTE(USBD_VID), /*idVendor*/
LOBYTE(USBD_PID), /*idVendor*/
HIBYTE(USBD_PID), /*idVendor*/
0x00, /*bcdDevice rel. 2.00*/
0x02,
USBD_IDX_MFC_STR, /*Index of manufacturer string*/
USBD_IDX_PRODUCT_STR, /*Index of product string*/
USBD_IDX_SERIAL_STR, /*Index of serial number string*/
USBD_CFG_MAX_NUM /*bNumConfigurations*/
} ; /* USB_DeviceDescriptor */
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
/* USB Standard Device Descriptor */
__ALIGN_BEGIN uint8_t USBD_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,
};
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
/* USB Standard Device Descriptor */
__ALIGN_BEGIN uint8_t USBD_LangIDDesc[USB_SIZ_STRING_LANGID] __ALIGN_END =
{
USB_SIZ_STRING_LANGID,
USB_DESC_TYPE_STRING,
LOBYTE(USBD_LANGID_STRING),
HIBYTE(USBD_LANGID_STRING),
};
uint8_t USBD_StringSerial[USB_SIZ_STRING_SERIAL] =
{
USB_SIZ_STRING_SERIAL,
USB_DESC_TYPE_STRING,
};
#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma data_alignment=4
#endif
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */
__ALIGN_BEGIN uint8_t USBD_StrDesc[USB_MAX_STR_DESC_SIZ] __ALIGN_END ;
/**
* @}
*/
/** @defgroup USBD_DESC_Private_FunctionPrototypes
* @{
*/
static void IntToUnicode(uint32_t value, uint8_t *pbuf, uint8_t len);
static void Get_SerialNum(void);
/**
* @}
*/
/** @defgroup USBD_DESC_Private_Functions
* @{
*/
/**
* @brief USBD_USR_DeviceDescriptor
* return the device descriptor
* @param speed : current device speed
* @param length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_USR_DeviceDescriptor(uint8_t speed, uint16_t *length)
{
*length = sizeof(USBD_DeviceDesc);
return (uint8_t *) USBD_DeviceDesc;
}
/**
* @brief USBD_USR_LangIDStrDescriptor
* return the LangID string descriptor
* @param speed : current device speed
* @param length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_USR_LangIDStrDescriptor(uint8_t speed, uint16_t *length)
{
*length = sizeof(USBD_LangIDDesc);
return (uint8_t *) USBD_LangIDDesc;
}
/**
* @brief USBD_USR_ProductStrDescriptor
* return the product string descriptor
* @param speed : current device speed
* @param length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_USR_ProductStrDescriptor(uint8_t speed, uint16_t *length)
{
USBD_GetString((uint8_t *)(uint8_t *)USBD_PRODUCT_STRING, USBD_StrDesc, length);
return USBD_StrDesc;
}
/**
* @brief USBD_USR_ManufacturerStrDescriptor
* return the manufacturer string descriptor
* @param speed : current device speed
* @param length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_USR_ManufacturerStrDescriptor(uint8_t speed, uint16_t *length)
{
USBD_GetString((uint8_t *)(uint8_t *) USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
return USBD_StrDesc;
}
/**
* @brief USBD_USR_SerialStrDescriptor
* return the serial number string descriptor
* @param speed : current device speed
* @param length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_USR_SerialStrDescriptor(uint8_t speed, uint16_t *length)
{
*length = USB_SIZ_STRING_SERIAL;
/* Update the serial number string descriptor with the data from the unique ID*/
Get_SerialNum();
return (uint8_t *) USBD_StringSerial;
}
/**
* @brief USBD_USR_ConfigStrDescriptor
* return the configuration string descriptor
* @param speed : current device speed
* @param length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_USR_ConfigStrDescriptor(uint8_t speed, uint16_t *length)
{
USBD_GetString((uint8_t *)(uint8_t *) USBD_CONFIGURATION_STRING, USBD_StrDesc, length);
return USBD_StrDesc;
}
/**
* @brief USBD_USR_InterfaceStrDescriptor
* return the interface string descriptor
* @param speed : current device speed
* @param length : pointer to data length variable
* @retval pointer to descriptor buffer
*/
uint8_t *USBD_USR_InterfaceStrDescriptor(uint8_t speed, uint16_t *length)
{
USBD_GetString((uint8_t *)(uint8_t *) USBD_INTERFACE_STRING, USBD_StrDesc, length);
return USBD_StrDesc;
}
/**
* @brief Create the serial number string descriptor
* @param None
* @retval None
*/
static void Get_SerialNum(void)
{
uint32_t deviceserial;
deviceserial = DEVICE_ID[0];
deviceserial += DEVICE_ID[2];
if (deviceserial != 0)
{
IntToUnicode (deviceserial, &USBD_StringSerial[2] ,8);
IntToUnicode (DEVICE_ID[1], &USBD_StringSerial[18] ,4);
}
}
/**
* @brief Convert Hex 32Bits value into char
* @param value: value to convert
* @param pbuf: pointer to the buffer
* @param len: buffer length
* @retval None
*/
static void IntToUnicode(uint32_t value, uint8_t *pbuf , uint8_t len)
{
uint8_t idx = 0;
for ( idx = 0 ; idx < len ; idx ++)
{
if ( ((value >> 28)) < 0xA )
{
pbuf[2 * idx] = (value >> 28) + '0';
}
else
{
pbuf[2 * idx] = (value >> 28) + 'A' - 10;
}
value = value << 4;
pbuf[2 * idx + 1] = 0;
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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@ -0,0 +1,193 @@
/**
******************************************************************************
* @file usbd_usr.c
* @author MCD Application Team
* @version V1.2.0
* @date 09-November-2015
* @brief This file includes the user application layer
******************************************************************************
* @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_usr.h"
/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* @{
*/
/** @defgroup USBD_USR
* @brief This file includes the user application layer
* @{
*/
/** @defgroup USBD_USR_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup USBD_USR_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup USBD_USR_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup USBD_USR_Private_Variables
* @{
*/
USBD_Usr_cb_TypeDef USR_cb =
{
USBD_USR_Init,
USBD_USR_DeviceReset,
USBD_USR_DeviceConfigured,
USBD_USR_DeviceSuspended,
USBD_USR_DeviceResumed,
USBD_USR_DeviceConnected,
USBD_USR_DeviceDisconnected,
};
/**
* @}
*/
/** @defgroup USBD_USR_Private_Constants
* @{
*/
/**
* @}
*/
/** @defgroup USBD_USR_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup USBD_USR_Private_Functions
* @{
*/
/**
* @brief USBD_USR_Init
* Displays the message on LCD for host lib initialization
* @param None
* @retval None
*/
void USBD_USR_Init(void)
{
}
/**
* @brief USBD_USR_DeviceReset
* Displays the message on LCD on device Reset Event
* @param speed : device speed
* @retval None
*/
void USBD_USR_DeviceReset(uint8_t speed)
{
}
/**
* @brief USBD_USR_DeviceConfigured
* Displays the message on LCD on device configuration Event
* @param None
* @retval Status
*/
void USBD_USR_DeviceConfigured(void)
{
}
/**
* @brief USBD_USR_DeviceSuspended
* Displays the message on LCD on device suspend Event
* @param None
* @retval None
*/
void USBD_USR_DeviceSuspended(void)
{
}
/**
* @brief USBD_USR_DeviceResumed
* Displays the message on LCD on device resume Event
* @param None
* @retval None
*/
void USBD_USR_DeviceResumed(void)
{
}
/**
* @brief USBD_USR_DeviceConnected
* Displays the message on LCD on device connection Event
* @param None
* @retval Status
*/
void USBD_USR_DeviceConnected(void)
{
}
/**
* @brief USBD_USR_DeviceDisonnected
* Displays the message on LCD on device disconnection Event
* @param None
* @retval Status
*/
void USBD_USR_DeviceDisconnected(void)
{
}
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/