uint8_t USBH_Disconnected (USB_OTG_CORE_HANDLE *pdev)
{
USB_OTG_BSP_DriveVBUS(pdev,0);
/* Disable all interrupts. */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTMSK, 0);
/* Clear any pending interrupts. */
USB_OTG_WRITE_REG32(&pdev->regs.GREGS->GINTSTS, 0xFFFFFFFF);
USB_OTG_DisableGlobalInt(pdev);
pdev->host.ConnSts = 0;
return 0;
}
void USB_OTG_BSP_ConfigVBUS(USB_OTG_CORE_HANDLE *pdev)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOH , ENABLE);
GPIO_InitStructure.GPIO_Pin = HOST_POWERSW_VBUS;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;
GPIO_Init(HOST_POWERSW_PORT,&GPIO_InitStructure);
/* By Default, DISABLE is needed on output of the Power Switch */
USB_OTG_BSP_DriveVBUS (pdev, 0);
USB_OTG_BSP_mDelay(200); /* Delay is need for stabilising the Vbus Low
in Reset Condition, when Vbus=1 and Reset-button is pressed by user */
}
//--------------------------------------------------------------
void USB_OTG_DriveVbus (USB_OTG_CORE_HANDLE *pdev, uint8_t state)
{
USB_OTG_HPRT0_TypeDef hprt0;
hprt0.d32 = 0;
/* enable disable the external charge pump */
USB_OTG_BSP_DriveVBUS(pdev, state);
/* Turn on the Host port power. */
hprt0.d32 = USB_OTG_ReadHPRT0(pdev);
if ((hprt0.b.prtpwr == 0 ) && (state == 1 ))
{
hprt0.b.prtpwr = 1;
USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
}
if ((hprt0.b.prtpwr == 1 ) && (state == 0 ))
{
hprt0.b.prtpwr = 0;
USB_OTG_WRITE_REG32(pdev->regs.HPRT0, hprt0.d32);
}
USB_OTG_BSP_mDelay(200);
}