void USBD_IRQHandler(void)
{
uint32_t u32IntSts = USBD_GET_INT_FLAG();
uint32_t u32State = USBD_GET_BUS_STATE();
//------------------------------------------------------------------
if (u32IntSts & USBD_INTSTS_FLDET)
{
// Floating detect
USBD_CLR_INT_FLAG(USBD_INTSTS_FLDET);
if (USBD_IS_ATTACHED())
{
/* USB Plug In */
USBD_ENABLE_USB();
}
else
{
/* USB Un-plug */
USBD_DISABLE_USB();
}
}
//------------------------------------------------------------------
if (u32IntSts & USBD_INTSTS_BUS)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_BUS);
if (u32State & USBD_STATE_USBRST)
{
/* Bus reset */
USBD_ENABLE_USB();
USBD_SwReset();
}
if (u32State & USBD_STATE_SUSPEND)
{
/* Enable USB but disable PHY */
USBD_DISABLE_PHY();
}
if (u32State & USBD_STATE_RESUME)
{
/* Enable USB and enable PHY */
USBD_ENABLE_USB();
}
}
//------------------------------------------------------------------
if(u32IntSts & USBD_INTSTS_WAKEUP)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_WAKEUP);
}
if (u32IntSts & USBD_INTSTS_USB)
{
extern uint8_t g_usbd_SetupPacket[];
// USB event
if (u32IntSts & USBD_INTSTS_SETUP)
{
// Setup packet
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_SETUP);
/* Clear the data IN/OUT ready flag of control end-points */
USBD_STOP_TRANSACTION(EP0);
USBD_STOP_TRANSACTION(EP1);
USBD_ProcessSetupPacket();
}
// EP events
if (u32IntSts & USBD_INTSTS_EP0)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP0);
// control IN
USBD_CtrlIn();
}
if (u32IntSts & USBD_INTSTS_EP1)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP1);
// control OUT
USBD_CtrlOut();
if(g_usbd_SetupPacket[1] == SET_LINE_CODE)
{
if(g_usbd_SetupPacket[4] == 0) /* VCOM-1 */
VCOM_LineCoding(0); /* Apply UART settings */
}
}
if (u32IntSts & USBD_INTSTS_EP2)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP2);
// Bulk IN
EP2_Handler();
}
if (u32IntSts & USBD_INTSTS_EP3)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP3);
// Bulk OUT
EP3_Handler();
}
if (u32IntSts & USBD_INTSTS_EP4)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP4);
}
if (u32IntSts & USBD_INTSTS_EP5)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP5);
// Interrupt IN
EP5_Handler();
}
}
}
/*--------------------------------------------------------------------------*/
void USBD_IRQHandler(void)
{
uint32_t u32IntSts = USBD_GET_INT_FLAG();
uint32_t u32State = USBD_GET_BUS_STATE();
//------------------------------------------------------------------
if (u32IntSts & USBD_INTSTS_FLDET)
{
// Floating detect
USBD_CLR_INT_FLAG(USBD_INTSTS_FLDET);
if (USBD_IS_ATTACHED())
{
/* USB Plug In */
USBD_ENABLE_USB();
}
else
{
/* USB Un-plug */
USBD_DISABLE_USB();
}
}
//------------------------------------------------------------------
if (u32IntSts & USBD_INTSTS_BUS)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_BUS);
if (u32State & USBD_STATE_USBRST)
{
/* Bus reset */
USBD_ENABLE_USB();
USBD_SwReset();
}
if (u32State & USBD_STATE_SUSPEND)
{
/* Enable USB but disable PHY */
USBD_DISABLE_PHY();
}
if (u32State & USBD_STATE_RESUME)
{
/* Enable USB and enable PHY */
USBD_ENABLE_USB();
}
}
//------------------------------------------------------------------
if(u32IntSts & USBD_INTSTS_WAKEUP)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_WAKEUP);
}
if (u32IntSts & USBD_INTSTS_USB)
{
// USB event
if (u32IntSts & USBD_INTSTS_SETUP)
{
// Setup packet
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_SETUP);
/* Clear the data IN/OUT ready flag of control end-points */
USBD_STOP_TRANSACTION(EP0);
USBD_STOP_TRANSACTION(EP1);
USBD_ProcessSetupPacket();
}
// EP events
if (u32IntSts & USBD_INTSTS_EP0)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP0);
// control IN
USBD_CtrlIn();
}
if (u32IntSts & USBD_INTSTS_EP1)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP1);
// control OUT
USBD_CtrlOut();
}
if (u32IntSts & USBD_INTSTS_EP2)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP2);
}
if (u32IntSts & USBD_INTSTS_EP3)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP3);
// Bulk Out -> receive printer data
PTR_Data_Receive();
}
if (u32IntSts & USBD_INTSTS_EP4)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP4);
}
if (u32IntSts & USBD_INTSTS_EP5)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP5);
// Interrupt IN
EP5_Handler();
}
if (u32IntSts & USBD_INTSTS_EP6)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP6);
// Interrupt OUT
EP6_Handler();
}
if (u32IntSts & USBD_INTSTS_EP7)
{
/* Clear event flag */
USBD_CLR_INT_FLAG(USBD_INTSTS_EP7);
}
}
}
/**
* USB virtual COM interrupt handler.
* This is an internal function.
*/
static void USB_VirtualCOM_IRQHandler() {
uint32_t intSts, busState;
intSts = USBD_GET_INT_FLAG();
busState = USBD_GET_BUS_STATE();
if(intSts & USBD_INTSTS_FLDET) {
if(USBD_IS_ATTACHED()) {
// USB plugged in
USBD_ENABLE_USB();
}
else {
// USB unplugged
USBD_DISABLE_USB();
}
}
else if(intSts & USBD_INTSTS_BUS) {
if(busState & USBD_STATE_USBRST) {
// Bus reset
USBD_ENABLE_USB();
USBD_SwReset();
}
else if(busState & USBD_STATE_SUSPEND) {
// Suspend: USB enabled, PHY disabled
USBD_DISABLE_PHY();
}
else if(busState & USBD_STATE_RESUME) {
// Resume: USB enabled, PHY enabled
USBD_ENABLE_USB();
}
}
else if(intSts & USBD_INTSTS_USB) {
if(intSts & USBD_INTSTS_SETUP) {
// Clear IN/OUT data ready flag for control endpoints
USBD_STOP_TRANSACTION(USB_VCOM_CTRL_IN_EP);
USBD_STOP_TRANSACTION(USB_VCOM_CTRL_OUT_EP);
// Handle setup packet
USBD_ProcessSetupPacket();
}
else if(intSts & USB_VCOM_CTRL_IN_INTSTS) {
// Handle control IN
USBD_CtrlIn();
}
else if(intSts & USB_VCOM_CTRL_OUT_INTSTS) {
// Handle control OUT
USBD_CtrlOut();
}
else if(intSts & USB_VCOM_BULK_IN_INTSTS) {
// Handle bulk IN
USB_VirtualCOM_HandleBulkIn();
}
else if(intSts & USB_VCOM_BULK_OUT_INTSTS) {
// Handle bulk OUT
USB_VirtualCOM_HandleBulkOut();
}
}
// Clear flag
USBD_CLR_INT_FLAG(intSts);
}