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 HID_ClassRequest(void)
{
uint8_t buf[8];
USBD_GetSetupPacket(buf);
if (buf[0] & 0x80) { /* request data transfer direction */
// Device to host
switch (buf[1]) {
case GET_LINE_CODE: {
if (buf[4] == 0) { /* VCOM-1 */
USBD_MemCopy((uint8_t *)(USBD_BUF_BASE + USBD_GET_EP_BUF_ADDR(EP0)), (uint8_t *)&gLineCoding, 7);
}
/* Data stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 7);
/* Status stage */
USBD_PrepareCtrlOut(0,0);
break;
}
case GET_REPORT:
case GET_IDLE:
case GET_PROTOCOL:
default: {
/* Setup error, stall the device */
USBD_SetStall(0);
break;
}
}
} else {
// Host to device
switch (buf[1]) {
case SET_CONTROL_LINE_STATE: {
if (buf[4] == 0) { /* VCOM-1 */
gCtrlSignal = buf[3];
gCtrlSignal = (gCtrlSignal << 8) | buf[2];
//printf("RTS=%d DTR=%d\n", (gCtrlSignal0 >> 1) & 1, gCtrlSignal0 & 1);
}
/* Status stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 0);
break;
}
case SET_LINE_CODE: {
//g_usbd_UsbConfig = 0100;
if (buf[4] == 0) /* VCOM-1 */
USBD_PrepareCtrlOut((uint8_t *)&gLineCoding, 7);
/* Status stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 0);
/* UART setting */
if (buf[4] == 0) /* VCOM-1 */
VCOM_LineCoding(0);
break;
}
case SET_REPORT: {
if(buf[3] == 2)
{
/* Request Type = Output */
USBD_SET_DATA1(EP1);
USBD_SET_PAYLOAD_LEN(EP1, buf[6]);
/* Trigger for HID Int in */
USBD_SET_PAYLOAD_LEN(EP5, 0);
/* Status stage */
USBD_PrepareCtrlIn(0, 0);
}
break;
}
case SET_IDLE: {
/* Status stage */
USBD_SET_DATA1(EP0);
USBD_SET_PAYLOAD_LEN(EP0, 0);
break;
}
case SET_PROTOCOL:
default: {
// Stall
/* Setup error, stall the device */
USBD_SetStall(0);
break;
}
}
}
}
