/***************************************************************************//** * @brief Handle USB port suspend interrupt * @details After receiving a USB reset, set the device state and * call @ref USBD_Suspend() if configured to do so in * @ref SLAB_USB_PWRSAVE_MODE ******************************************************************************/ static void handleUsbSuspendInt(void) { if (myUsbDevice.state >= USBD_STATE_POWERED) { USBD_SetUsbState(USBD_STATE_SUSPENDED); #if (SLAB_USB_PWRSAVE_MODE & USB_PWRSAVE_MODE_ONSUSPEND) USBD_Suspend(); #endif } }
void USB_LP_CAN1_RX0_IRQHandler(void) { U32 istr, num, val; istr = ISTR; /* USB Reset Request */ if (istr & ISTR_RESET) { USBD_Reset(); usbd_reset_core(); #ifdef __RTX if (USBD_RTX_DevTask) { isr_evt_set(USBD_EVT_RESET, USBD_RTX_DevTask); } #else if (USBD_P_Reset_Event) { USBD_P_Reset_Event(); } #endif ISTR = ~ISTR_RESET; } /* USB Suspend Request */ if (istr & ISTR_SUSP) { USBD_Suspend(); #ifdef __RTX if (USBD_RTX_DevTask) { isr_evt_set(USBD_EVT_SUSPEND, USBD_RTX_DevTask); } #else if (USBD_P_Suspend_Event) { USBD_P_Suspend_Event(); } #endif ISTR = ~ISTR_SUSP; } /* USB Wakeup */ if (istr & ISTR_WKUP) { USBD_WakeUp(); #ifdef __RTX if (USBD_RTX_DevTask) { isr_evt_set(USBD_EVT_RESUME, USBD_RTX_DevTask); } #else if (USBD_P_Resume_Event) { USBD_P_Resume_Event(); } #endif ISTR = ~ISTR_WKUP; } /* Start of Frame */ if (istr & ISTR_SOF) { #ifdef __RTX if (USBD_RTX_DevTask) { isr_evt_set(USBD_EVT_SOF, USBD_RTX_DevTask); } #else if (USBD_P_SOF_Event) { USBD_P_SOF_Event(); } #endif ISTR = ~ISTR_SOF; } /* PMA Over/underrun */ if (istr & ISTR_PMAOVR) { #ifdef __RTX LastError = 2; if (USBD_RTX_DevTask) { isr_evt_set(USBD_EVT_ERROR, USBD_RTX_DevTask); } #else if (USBD_P_Error_Event) { USBD_P_Error_Event(2); } #endif ISTR = ~ISTR_PMAOVR; } /* Error: No Answer, CRC Error, Bit Stuff Error, Frame Format Error */ if (istr & ISTR_ERR) { #ifdef __RTX LastError = 1; if (USBD_RTX_DevTask) { isr_evt_set(USBD_EVT_ERROR, USBD_RTX_DevTask); } #else if (USBD_P_Error_Event) { USBD_P_Error_Event(1); } #endif ISTR = ~ISTR_ERR; } /* Endpoint Interrupts */ while ((istr = ISTR) & ISTR_CTR) { ISTR = ~ISTR_CTR; num = istr & ISTR_EP_ID; val = EPxREG(num); if (val & EP_CTR_RX) { EPxREG(num) = val & ~EP_CTR_RX & EP_MASK; #ifdef __RTX if (USBD_RTX_EPTask[num]) { isr_evt_set((val & EP_SETUP) ? USBD_EVT_SETUP : USBD_EVT_OUT, USBD_RTX_EPTask[num]); } #else if (USBD_P_EP[num]) { USBD_P_EP[num]((val & EP_SETUP) ? USBD_EVT_SETUP : USBD_EVT_OUT); } #endif } if (val & EP_CTR_TX) { EPxREG(num) = val & ~EP_CTR_TX & EP_MASK; #ifdef __RTX if (USBD_RTX_EPTask[num]) { isr_evt_set(USBD_EVT_IN, USBD_RTX_EPTask[num]); } #else if (USBD_P_EP[num]) { USBD_P_EP[num](USBD_EVT_IN); } #endif } } }