stm32 HSUSB
/
stm32f407xx.h
#define USB_OTG_HS_PERIPH_BASE 0x40040000UL
#define USB_OTG_HS ((USB_OTG_GlobalTypeDef *) USB_OTG_HS_PERIPH_BASE)
//
//
定义全局变量 USBD_HandleTypeDef hUsbDeviceHS;并默认全零初始化
/* 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[16];
USBD_EndpointTypeDef ep_out[16];
__IO uint32_t ep0_state;
uint32_t ep0_data_len;
__IO uint8_t dev_state;
__IO uint8_t dev_old_state;
uint8_t dev_address;
uint8_t dev_connection_status;
uint8_t dev_test_mode;
uint32_t dev_remote_wakeup;
uint8_t ConfIdx;
USBD_SetupReqTypedef request;
USBD_DescriptorsTypeDef *pDesc;
USBD_ClassTypeDef *pClass[USBD_MAX_SUPPORTED_CLASS];
void *pClassData;
void *pClassDataCmsit[USBD_MAX_SUPPORTED_CLASS];
void *pUserData[USBD_MAX_SUPPORTED_CLASS];
void *pData;
void *pBosDesc;
void *pConfDesc;
uint32_t classId;
uint32_t NumClasses;
#ifdef USE_USBD_COMPOSITE
USBD_CompositeElementTypeDef tclasslist[USBD_MAX_SUPPORTED_CLASS];
#endif /* USE_USBD_COMPOSITE */
} USBD_HandleTypeDef;
//
//
定义全局变量USBD_DescriptorsTypeDef HS_Desc，并赋值初始化
/** @defgroup USBD_DESC_Private_Variables USBD_DESC_Private_Variables
* @brief Private variables.
* @{
*/
USBD_DescriptorsTypeDef HS_Desc =
{
USBD_HS_DeviceDescriptor
, USBD_HS_LangIDStrDescriptor
, USBD_HS_ManufacturerStrDescriptor
, USBD_HS_ProductStrDescriptor
, USBD_HS_SerialStrDescriptor
, USBD_HS_ConfigStrDescriptor
, USBD_HS_InterfaceStrDescriptor
#if (USBD_LPM_ENABLED == 1)
, USBD_HS_USR_BOSDescriptor
#endif /* (USBD_LPM_ENABLED == 1) */
};
//=====================================================//
//=====================================================//
/* 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_CLASS_USER_STRING_DESC == 1)
uint8_t *(*GetUserStrDescriptor)(USBD_SpeedTypeDef speed, uint8_t idx, uint16_t *length);
#endif /* USBD_CLASS_USER_STRING_DESC */
#if ((USBD_LPM_ENABLED == 1U) || (USBD_CLASS_BOS_ENABLED == 1))
uint8_t *(*GetBOSDescriptor)(USBD_SpeedTypeDef speed, uint16_t *length);
#endif /* (USBD_LPM_ENABLED == 1U) || (USBD_CLASS_BOS_ENABLED == 1) */
} USBD_DescriptorsTypeDef;
//=====================================================//
//=====================================================//
/**
* @brief Return the device descriptor
* @param speed : Current device speed
* @param length : Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
uint8_t * USBD_HS_DeviceDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
UNUSED(speed);
*length = sizeof(USBD_HS_DeviceDesc);
return USBD_HS_DeviceDesc;
}
/**
* @brief 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_HS_LangIDStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
UNUSED(speed);
*length = sizeof(USBD_LangIDDesc);
return USBD_LangIDDesc;
}
/**
* @brief 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_HS_ProductStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
if(speed == 0)
{
USBD_GetString((uint8_t *)USBD_PRODUCT_STRING_HS, USBD_StrDesc, length);
}
else
{
USBD_GetString((uint8_t *)USBD_PRODUCT_STRING_HS, USBD_StrDesc, length);
}
return USBD_StrDesc;
}
/**
* @brief 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_HS_ManufacturerStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
UNUSED(speed);
USBD_GetString((uint8_t *)USBD_MANUFACTURER_STRING, USBD_StrDesc, length);
return USBD_StrDesc;
}
/**
* @brief 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_HS_SerialStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
UNUSED(speed);
*length = USB_SIZ_STRING_SERIAL;
/* Update the serial number string descriptor with the data from the unique
* ID */
Get_SerialNum();
/* USER CODE BEGIN USBD_HS_SerialStrDescriptor */
/* USER CODE END USBD_HS_SerialStrDescriptor */
return (uint8_t *) USBD_StringSerial;
}
/**
* @brief 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_HS_ConfigStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
if(speed == USBD_SPEED_HIGH)
{
USBD_GetString((uint8_t *)USBD_CONFIGURATION_STRING_HS, USBD_StrDesc, length);
}
else
{
USBD_GetString((uint8_t *)USBD_CONFIGURATION_STRING_HS, USBD_StrDesc, length);
}
return USBD_StrDesc;
}
/**
* @brief 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_HS_InterfaceStrDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
if(speed == 0)
{
USBD_GetString((uint8_t *)USBD_INTERFACE_STRING_HS, USBD_StrDesc, length);
}
else
{
USBD_GetString((uint8_t *)USBD_INTERFACE_STRING_HS, USBD_StrDesc, length);
}
return USBD_StrDesc;
}
#if (USBD_LPM_ENABLED == 1)
/**
* @brief Return the BOS descriptor
* @param speed : Current device speed
* @param length : Pointer to data length variable
* @retval Pointer to descriptor buffer
*/
uint8_t * USBD_HS_USR_BOSDescriptor(USBD_SpeedTypeDef speed, uint16_t *length)
{
UNUSED(speed);
*length = sizeof(USBD_HS_BOSDesc);
return (uint8_t*)USBD_HS_BOSDesc;
}
#endif /* (USBD_LPM_ENABLED == 1) */
全局宏定义，区分高速和全速USB
/* #define for FS and HS identification */
#define DEVICE_FS 0
#define DEVICE_HS 1
//
//
定义全局变量USBD_CDC，并赋值初始化
/* CDC interface class callbacks structure */
USBD_ClassTypeDef USBD_CDC =
{
USBD_CDC_Init,
USBD_CDC_DeInit,
USBD_CDC_Setup,
NULL, /* EP0_TxSent */
USBD_CDC_EP0_RxReady,
USBD_CDC_DataIn,
USBD_CDC_DataOut,
NULL,
NULL,
NULL,
#ifdef USE_USBD_COMPOSITE
NULL,
NULL,
NULL,
NULL,
#else
USBD_CDC_GetHSCfgDesc,
USBD_CDC_GetFSCfgDesc,
USBD_CDC_GetOtherSpeedCfgDesc,
USBD_CDC_GetDeviceQualifierDescriptor,
#endif /* USE_USBD_COMPOSITE */
};
//=====================================================//
//=====================================================//
/**
* @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)
{
uint16_t len = 0U;
if (pclass == NULL)
{
#if (USBD_DEBUG_LEVEL > 1U)
USBD_ErrLog("Invalid Class handle");
#endif /* (USBD_DEBUG_LEVEL > 1U) */
return USBD_FAIL;
}
/* link the class to the USB Device handle */
pdev->pClass[0] = pclass;
/* Get Device Configuration Descriptor */
#ifdef USE_USB_HS
if (pdev->pClass[pdev->classId]->GetHSConfigDescriptor != NULL)
{
pdev->pConfDesc = (void *)pdev->pClass[pdev->classId]->GetHSConfigDescriptor(&len);
}
#else /* Default USE_USB_FS */
if (pdev->pClass[pdev->classId]->GetFSConfigDescriptor != NULL)
{
pdev->pConfDesc = (void *)pdev->pClass[pdev->classId]->GetFSConfigDescriptor(&len);
}
#endif /* USE_USB_FS */
/* Increment the NumClasses */
pdev->NumClasses ++;
return USBD_OK;
}
//=====================================================//
//=====================================================//
/**
* @brief USBD_LL_DataOutStage
* Handle data OUT stage
* @param pdev: device instance
* @param epnum: endpoint index
* @param pdata: data pointer
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DataOutStage(USBD_HandleTypeDef *pdev,
uint8_t epnum, uint8_t *pdata)
{
USBD_EndpointTypeDef *pep;
USBD_StatusTypeDef ret = USBD_OK;
uint8_t idx;
if (epnum == 0U)
{
pep = &pdev->ep_out[0];
if (pdev->ep0_state == USBD_EP0_DATA_OUT)
{
if (pep->rem_length > pep->maxpacket)
{
pep->rem_length -= pep->maxpacket;
(void)USBD_CtlContinueRx(pdev, pdata, MIN(pep->rem_length, pep->maxpacket));
}
else
{
/* Find the class ID relative to the current request */
switch (pdev->request.bmRequest & 0x1FU)
{
case USB_REQ_RECIPIENT_DEVICE:
/* Device requests must be managed by the first instantiated class
(or duplicated by all classes for simplicity) */
idx = 0U;
break;
case USB_REQ_RECIPIENT_INTERFACE:
idx = USBD_CoreFindIF(pdev, LOBYTE(pdev->request.wIndex));
break;
case USB_REQ_RECIPIENT_ENDPOINT:
idx = USBD_CoreFindEP(pdev, LOBYTE(pdev->request.wIndex));
break;
default:
/* Back to the first class in case of doubt */
idx = 0U;
break;
}
if (idx < USBD_MAX_SUPPORTED_CLASS)
{
/* Setup the class ID and route the request to the relative class function */
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[idx]->EP0_RxReady != NULL)
{
pdev->classId = idx;
pdev->pClass[idx]->EP0_RxReady(pdev);
}
}
}
(void)USBD_CtlSendStatus(pdev);
}
}
else
{
#if 0
if (pdev->ep0_state == USBD_EP0_STATUS_OUT)
{
/*
* STATUS PHASE completed, update ep0_state to idle
*/
pdev->ep0_state = USBD_EP0_IDLE;
(void)USBD_LL_StallEP(pdev, 0U);
}
#endif
}
}//if (epnum == 0U)
else
{
/* Get the class index relative to this interface */
idx = USBD_CoreFindEP(pdev, (epnum & 0x7FU));
if (((uint16_t)idx != 0xFFU) && (idx < USBD_MAX_SUPPORTED_CLASS))
{
/* Call the class data out function to manage the request */
if (pdev->dev_state == USBD_STATE_CONFIGURED)
{
if (pdev->pClass[idx]->DataOut != NULL)
{
pdev->classId = idx;
ret = (USBD_StatusTypeDef)pdev->pClass[idx]->DataOut(pdev, epnum);//***//
}
}
if (ret != USBD_OK)
{
return ret;
}
}
}
return USBD_OK;
}/