void USB_ShutDown(void)
{
USB_ResetInterface();
USB_Detach();
USB_Controller_Disable();
USB_INT_DisableAllInterrupts();
USB_INT_ClearAllInterrupts();
#if defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
UHWCON &= ~(1 << UIMOD);
#endif
if (!(USB_Options & USB_OPT_MANUAL_PLL))
USB_PLL_Off();
USB_REG_Off();
#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
USB_OTGPAD_Off();
#endif
#if defined(USB_CAN_BE_BOTH)
UHWCON &= ~(1 << UIDE);
#endif
USB_IsInitialized = false;
#if defined(USB_CAN_BE_BOTH)
USB_CurrentMode = USB_MODE_NONE;
#endif
}
void USB_ResetInterface(void)
{
#if defined(USB_CAN_BE_BOTH)
bool UIDModeSelectEnabled = ((UHWCON & (1 << UIDE)) != 0);
#endif
USB_INT_DisableAllInterrupts();
USB_INT_ClearAllInterrupts();
USB_Controller_Reset();
#if defined(USB_CAN_BE_BOTH)
if (UIDModeSelectEnabled)
USB_INT_Enable(USB_INT_IDTI);
#endif
USB_CLK_Unfreeze();
if (USB_CurrentMode == USB_MODE_Device)
{
#if defined(USB_CAN_BE_DEVICE)
#if (defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR))
UHWCON |= (1 << UIMOD);
#endif
if (!(USB_Options & USB_OPT_MANUAL_PLL))
{
#if defined(USB_SERIES_2_AVR)
USB_PLL_On();
while (!(USB_PLL_IsReady()));
#else
USB_PLL_Off();
#endif
}
USB_Init_Device();
#endif
}
else if (USB_CurrentMode == USB_MODE_Host)
{
#if defined(USB_CAN_BE_HOST)
UHWCON &= ~(1 << UIMOD);
if (!(USB_Options & USB_OPT_MANUAL_PLL))
{
#if defined(USB_CAN_BE_HOST)
USB_PLL_On();
while (!(USB_PLL_IsReady()));
#endif
}
USB_Init_Host();
#endif
}
#if (defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR))
USB_OTGPAD_On();
#endif
}
void USB_ShutDown(void)
{
if (USB_IsConnected)
RAISE_EVENT(USB_Disconnect);
USB_INT_DisableAllInterrupts();
USB_INT_ClearAllInterrupts();
USB_IsConnected = false;
USB_IsInitialized = false;
#if defined(USB_CAN_BE_HOST)
USB_HostState = HOST_STATE_Unattached;
#endif
#if defined(USB_CAN_BE_DEVICE)
USB_ConfigurationNumber = 0;
#endif
#if (!defined(USB_HOST_ONLY) && !defined(USB_DEVICE_ONLY))
USB_CurrentMode = USB_MODE_NONE;
#endif
#if !defined(USE_STATIC_OPTIONS)
USB_Options = 0;
#endif
USB_Interface_Disable();
USB_PLL_Off();
#if defined(USB_FULL_CONTROLLER) || defined(USB_MODIFIED_FULL_CONTROLLER)
USB_OTGPAD_Off();
#endif
#if defined(USB_CAN_BE_BOTH)
UHWCON &= ~(1 << UIDE);
#endif
}
void USB_Disable(void)
{
USB_INT_DisableAllInterrupts();
USB_INT_ClearAllInterrupts();
USB_Detach();
USB_Controller_Disable();
if (!(USB_Options & USB_OPT_MANUAL_PLL))
USB_PLL_Off();
USB_REG_Off();
#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
USB_OTGPAD_Off();
#endif
#if defined(USB_CAN_BE_BOTH)
USB_CurrentMode = USB_MODE_None;
#endif
USB_IsInitialized = false;
}
ISR(USB_GEN_vect, ISR_BLOCK)
{
#if defined(USB_CAN_BE_DEVICE)
#if !defined(NO_SOF_EVENTS)
if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
{
USB_INT_Clear(USB_INT_SOFI);
EVENT_USB_Device_StartOfFrame();
}
#endif
#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR)
if (USB_INT_HasOccurred(USB_INT_VBUSTI) && USB_INT_IsEnabled(USB_INT_VBUSTI))
{
USB_INT_Clear(USB_INT_VBUSTI);
if (USB_VBUS_GetStatus())
{
if (!(USB_Options & USB_OPT_MANUAL_PLL))
{
USB_PLL_On();
while (!(USB_PLL_IsReady()));
}
USB_DeviceState = DEVICE_STATE_Powered;
EVENT_USB_Device_Connect();
}
else
{
if (!(USB_Options & USB_OPT_MANUAL_PLL))
USB_PLL_Off();
USB_DeviceState = DEVICE_STATE_Unattached;
EVENT_USB_Device_Disconnect();
}
}
#endif
if (USB_INT_HasOccurred(USB_INT_SUSPI) && USB_INT_IsEnabled(USB_INT_SUSPI))
{
USB_INT_Disable(USB_INT_SUSPI);
USB_INT_Enable(USB_INT_WAKEUPI);
USB_CLK_Freeze();
if (!(USB_Options & USB_OPT_MANUAL_PLL))
USB_PLL_Off();
#if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
USB_DeviceState = DEVICE_STATE_Unattached;
EVENT_USB_Device_Disconnect();
#else
USB_DeviceState = DEVICE_STATE_Suspended;
EVENT_USB_Device_Suspend();
#endif
}
if (USB_INT_HasOccurred(USB_INT_WAKEUPI) && USB_INT_IsEnabled(USB_INT_WAKEUPI))
{
if (!(USB_Options & USB_OPT_MANUAL_PLL))
{
USB_PLL_On();
while (!(USB_PLL_IsReady()));
}
USB_CLK_Unfreeze();
USB_INT_Clear(USB_INT_WAKEUPI);
USB_INT_Disable(USB_INT_WAKEUPI);
USB_INT_Enable(USB_INT_SUSPI);
if (USB_Device_ConfigurationNumber)
USB_DeviceState = DEVICE_STATE_Configured;
else
USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
#if defined(USB_SERIES_2_AVR) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
EVENT_USB_Device_Connect();
#else
EVENT_USB_Device_WakeUp();
#endif
}
if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
{
USB_INT_Clear(USB_INT_EORSTI);
USB_DeviceState = DEVICE_STATE_Default;
USB_Device_ConfigurationNumber = 0;
USB_INT_Clear(USB_INT_SUSPI);
USB_INT_Disable(USB_INT_SUSPI);
USB_INT_Enable(USB_INT_WAKEUPI);
Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
ENDPOINT_DIR_OUT, USB_Device_ControlEndpointSize,
ENDPOINT_BANK_SINGLE);
#if defined(INTERRUPT_CONTROL_ENDPOINT)
USB_INT_Enable(USB_INT_RXSTPI);
#endif
EVENT_USB_Device_Reset();
}
#endif
#if defined(USB_CAN_BE_HOST)
#if !defined(NO_SOF_EVENTS)
if (USB_INT_HasOccurred(USB_INT_HSOFI) && USB_INT_IsEnabled(USB_INT_HSOFI))
{
USB_INT_Clear(USB_INT_HSOFI);
EVENT_USB_Host_StartOfFrame();
}
#endif
if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
{
USB_INT_Clear(USB_INT_DDISCI);
USB_INT_Clear(USB_INT_DCONNI);
USB_INT_Disable(USB_INT_DDISCI);
EVENT_USB_Host_DeviceUnattached();
USB_ResetInterface();
}
if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
{
USB_INT_Clear(USB_INT_VBERRI);
USB_Host_VBUS_Manual_Off();
USB_Host_VBUS_Auto_Off();
EVENT_USB_Host_HostError(HOST_ERROR_VBusVoltageDip);
EVENT_USB_Host_DeviceUnattached();
USB_HostState = HOST_STATE_Unattached;
}
if (USB_INT_HasOccurred(USB_INT_SRPI) && USB_INT_IsEnabled(USB_INT_SRPI))
{
USB_INT_Clear(USB_INT_SRPI);
USB_INT_Disable(USB_INT_SRPI);
EVENT_USB_Host_DeviceAttached();
USB_INT_Enable(USB_INT_DDISCI);
USB_HostState = HOST_STATE_Powered;
}
if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
{
USB_INT_Clear(USB_INT_BCERRI);
EVENT_USB_Host_DeviceEnumerationFailed(HOST_ENUMERROR_NoDeviceDetected, 0);
EVENT_USB_Host_DeviceUnattached();
USB_ResetInterface();
}
#endif
#if defined(USB_CAN_BE_BOTH)
if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
{
USB_INT_Clear(USB_INT_IDTI);
if (USB_DeviceState != DEVICE_STATE_Unattached)
EVENT_USB_Device_Disconnect();
if (USB_HostState != HOST_STATE_Unattached)
EVENT_USB_Host_DeviceUnattached();
USB_CurrentMode = USB_GetUSBModeFromUID();
USB_ResetInterface();
EVENT_USB_UIDChange();
}
#endif
}
ISR(USB_GEN_vect, ISR_BLOCK)
{
#if defined(USB_CAN_BE_DEVICE)
#if defined(USB_FULL_CONTROLLER) || defined(USB_MODIFIED_FULL_CONTROLLER)
if (USB_INT_HasOccurred(USB_INT_VBUS) && USB_INT_IsEnabled(USB_INT_VBUS))
{
USB_INT_Clear(USB_INT_VBUS);
RAISE_EVENT(USB_VBUSChange);
if (USB_VBUS_GetStatus())
{
RAISE_EVENT(USB_VBUSConnect);
if (USB_IsConnected)
RAISE_EVENT(USB_Disconnect);
USB_ResetInterface();
USB_IsConnected = true;
RAISE_EVENT(USB_Connect);
}
else
{
RAISE_EVENT(USB_Disconnect);
USB_Detach();
USB_CLK_Freeze();
USB_PLL_Off();
USB_REG_Off();
USB_IsConnected = false;
RAISE_EVENT(USB_VBUSDisconnect);
USB_INT_Clear(USB_INT_VBUS);
}
}
#endif
if (USB_INT_HasOccurred(USB_INT_SUSPEND) && USB_INT_IsEnabled(USB_INT_SUSPEND))
{
USB_INT_Clear(USB_INT_SUSPEND);
USB_INT_Disable(USB_INT_SUSPEND);
USB_INT_Enable(USB_INT_WAKEUP);
USB_CLK_Freeze();
if (!(USB_Options & USB_OPT_MANUAL_PLL))
USB_PLL_Off();
USB_IsSuspended = true;
RAISE_EVENT(USB_Suspend);
#if defined(USB_LIMITED_CONTROLLER) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
if (USB_IsConnected)
{
USB_IsConnected = false;
RAISE_EVENT(USB_Disconnect);
}
#endif
}
if (USB_INT_HasOccurred(USB_INT_WAKEUP) && USB_INT_IsEnabled(USB_INT_WAKEUP))
{
if (!(USB_Options & USB_OPT_MANUAL_PLL))
{
USB_PLL_On();
while (!(USB_PLL_IsReady()));
}
USB_CLK_Unfreeze();
USB_INT_Clear(USB_INT_WAKEUP);
USB_INT_Disable(USB_INT_WAKEUP);
USB_INT_Enable(USB_INT_SUSPEND);
#if defined(USB_LIMITED_CONTROLLER) && !defined(NO_LIMITED_CONTROLLER_CONNECT)
if (!(USB_IsConnected))
{
USB_IsConnected = true;
RAISE_EVENT(USB_Connect);
}
#endif
USB_IsSuspended = false;
RAISE_EVENT(USB_WakeUp);
}
if (USB_INT_HasOccurred(USB_INT_EORSTI) && USB_INT_IsEnabled(USB_INT_EORSTI))
{
USB_INT_Clear(USB_INT_EORSTI);
USB_ConfigurationNumber = 0;
USB_INT_Clear(USB_INT_SUSPEND);
USB_INT_Disable(USB_INT_SUSPEND);
USB_INT_Enable(USB_INT_WAKEUP);
Endpoint_ClearEndpoints();
Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
ENDPOINT_DIR_OUT, USB_ControlEndpointSize,
ENDPOINT_BANK_SINGLE);
RAISE_EVENT(USB_Reset);
}
#endif
#if defined(USB_CAN_BE_HOST)
if (USB_INT_HasOccurred(USB_INT_DDISCI) && USB_INT_IsEnabled(USB_INT_DDISCI))
{
USB_INT_Clear(USB_INT_DDISCI);
USB_INT_Clear(USB_INT_DCONNI);
USB_INT_Disable(USB_INT_DDISCI);
RAISE_EVENT(USB_DeviceUnattached);
RAISE_EVENT(USB_Disconnect);
USB_ResetInterface();
}
if (USB_INT_HasOccurred(USB_INT_VBERRI) && USB_INT_IsEnabled(USB_INT_VBERRI))
{
USB_INT_Clear(USB_INT_VBERRI);
USB_Host_VBUS_Manual_Off();
USB_Host_VBUS_Auto_Off();
RAISE_EVENT(USB_HostError, HOST_ERROR_VBusVoltageDip);
RAISE_EVENT(USB_DeviceUnattached);
USB_HostState = HOST_STATE_Unattached;
}
if (USB_INT_HasOccurred(USB_INT_SRPI) && USB_INT_IsEnabled(USB_INT_SRPI))
{
USB_INT_Clear(USB_INT_SRPI);
USB_INT_Disable(USB_INT_SRPI);
RAISE_EVENT(USB_DeviceAttached);
USB_INT_Enable(USB_INT_DDISCI);
USB_HostState = HOST_STATE_Attached;
}
if (USB_INT_HasOccurred(USB_INT_BCERRI) && USB_INT_IsEnabled(USB_INT_BCERRI))
{
USB_INT_Clear(USB_INT_BCERRI);
RAISE_EVENT(USB_DeviceEnumerationFailed, HOST_ENUMERROR_NoDeviceDetected, 0);
RAISE_EVENT(USB_DeviceUnattached);
if (USB_IsConnected)
RAISE_EVENT(USB_Disconnect);
USB_ResetInterface();
}
#endif
#if defined(USB_CAN_BE_BOTH)
if (USB_INT_HasOccurred(USB_INT_IDTI) && USB_INT_IsEnabled(USB_INT_IDTI))
{
USB_INT_Clear(USB_INT_IDTI);
if (USB_IsConnected)
{
if (USB_CurrentMode == USB_MODE_HOST)
RAISE_EVENT(USB_DeviceUnattached);
else
RAISE_EVENT(USB_Disconnect);
}
RAISE_EVENT(USB_UIDChange);
USB_ResetInterface();
}
#endif
}