usb_prop.c

usb+源代码

#endif

#endif

  /* Set this device to response on default address */
  SetDeviceAddress(0);

  bDeviceState = ATTACHED;
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_SetConfiguration.
* Description    : Udpade the device state to configured.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
void Virtual_Com_Port_SetConfiguration(void)
{
  DEVICE_INFO *pInfo = &Device_Info;

  if (pInfo->Current_Configuration != 0)
  {
    /* Device configured */
    bDeviceState = CONFIGURED;
  }
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_SetConfiguration.
* Description    : Udpade the device state to addressed.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
void Virtual_Com_Port_SetDeviceAddress (void)
{
  bDeviceState = ADDRESSED;
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_Status_In.
* Description    : Virtual COM Port Status In Routine.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
void Virtual_Com_Port_Status_In(void)
{
  if (Request == SET_LINE_CODING)
  {
    USART_Config();
    Request = 0;
  }
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_Status_Out
* Description    : Virtual COM Port Status OUT Routine.
* Input          : None.
* Output         : None.
* Return         : None.
*******************************************************************************/
void Virtual_Com_Port_Status_Out(void)
{}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_Data_Setup
* Description    : handle the data class specific requests
* Input          : Request Nb.
* Output         : None.
* Return         : USB_UNSUPPORT or USB_SUCCESS.
*******************************************************************************/
RESULT Virtual_Com_Port_Data_Setup(uint8_t RequestNo)
{
  uint8_t    *(*CopyRoutine)(uint16_t);

  CopyRoutine = NULL;

  if (RequestNo == GET_LINE_CODING)
  {
    if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT))
    {
      CopyRoutine = Virtual_Com_Port_GetLineCoding;
    }
  }
  else if (RequestNo == SET_LINE_CODING)
  {
    if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT))
    {
      CopyRoutine = Virtual_Com_Port_SetLineCoding;
    }
    Request = SET_LINE_CODING;
  }

  if (CopyRoutine == NULL)
  {
    return USB_UNSUPPORT;
  }

  pInformation->Ctrl_Info.CopyData = CopyRoutine;
  pInformation->Ctrl_Info.Usb_wOffset = 0;
  (*CopyRoutine)(0);
  return USB_SUCCESS;
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_NoData_Setup.
* Description    : handle the no data class specific requests.
* Input          : Request Nb.
* Output         : None.
* Return         : USB_UNSUPPORT or USB_SUCCESS.
*******************************************************************************/
RESULT Virtual_Com_Port_NoData_Setup(uint8_t RequestNo)
{

  if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT))
  {
    if (RequestNo == SET_COMM_FEATURE)
    {
      return USB_SUCCESS;
    }
    else if (RequestNo == SET_CONTROL_LINE_STATE)
    {
      return USB_SUCCESS;
    }
  }

  return USB_UNSUPPORT;
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_GetDeviceDescriptor.
* Description    : Gets the device descriptor.
* Input          : Length.
* Output         : None.
* Return         : The address of the device descriptor.
*******************************************************************************/
uint8_t *Virtual_Com_Port_GetDeviceDescriptor(uint16_t Length)
{
  return Standard_GetDescriptorData(Length, &Device_Descriptor);
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_GetConfigDescriptor.
* Description    : get the configuration descriptor.
* Input          : Length.
* Output         : None.
* Return         : The address of the configuration descriptor.
*******************************************************************************/
uint8_t *Virtual_Com_Port_GetConfigDescriptor(uint16_t Length)
{
  return Standard_GetDescriptorData(Length, &Config_Descriptor);
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_GetStringDescriptor
* Description    : Gets the string descriptors according to the needed index
* Input          : Length.
* Output         : None.
* Return         : The address of the string descriptors.
*******************************************************************************/
uint8_t *Virtual_Com_Port_GetStringDescriptor(uint16_t Length)
{
  uint8_t wValue0 = pInformation->USBwValue0;
  if (wValue0 > 4)
  {
    return NULL;
  }
  else
  {
    return Standard_GetDescriptorData(Length, &String_Descriptor[wValue0]);
  }
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_Get_Interface_Setting.
* Description    : test the interface and the alternate setting according to the
*                  supported one.
* Input1         : uint8_t: Interface : interface number.
* Input2         : uint8_t: AlternateSetting : Alternate Setting number.
* Output         : None.
* Return         : The address of the string descriptors.
*******************************************************************************/
RESULT Virtual_Com_Port_Get_Interface_Setting(uint8_t Interface, uint8_t AlternateSetting)
{
  if (AlternateSetting > 0)
  {
    return USB_UNSUPPORT;
  }
  else if (Interface > 1)
  {
    return USB_UNSUPPORT;
  }
  return USB_SUCCESS;
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_GetLineCoding.
* Description    : send the linecoding structure to the PC host.
* Input          : Length.
* Output         : None.
* Return         : Inecoding structure base address.
*******************************************************************************/
uint8_t *Virtual_Com_Port_GetLineCoding(uint16_t Length)
{
  if (Length == 0)
  {
    pInformation->Ctrl_Info.Usb_wLength = sizeof(linecoding);
    return NULL;
  }
  return(uint8_t *)&linecoding;
}

/*******************************************************************************
* Function Name  : Virtual_Com_Port_SetLineCoding.
* Description    : Set the linecoding structure fields.
* Input          : Length.
* Output         : None.
* Return         : Linecoding structure base address.
*******************************************************************************/
uint8_t *Virtual_Com_Port_SetLineCoding(uint16_t Length)
{
  if (Length == 0)
  {
    pInformation->Ctrl_Info.Usb_wLength = sizeof(linecoding);
    return NULL;
  }
  return(uint8_t *)&linecoding;
}

/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/