Diff: USBDevice/USBHAL_NUC472.cpp

Revision:

71:53949e6131f6

Parent:

70:2c525a50f1b6

Child:

72:092f8c67730c

--- a/USBDevice/USBHAL_NUC472.cpp	Thu Jul 20 10:14:36 2017 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,730 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2015-2016 Nuvoton
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#if defined(TARGET_NUMAKER_PFM_NUC472)
-
-#include "USBHAL.h"
-#include "NUC472_442.h"
-#include "pinmap.h"
-
-/**
- * EP: mbed USBD defined endpoint, e.g. EP0OUT/IN, EP1OUT/IN, EP2OUT/IN.
- * EPX: BSP defined endpoint, e.g. CEP, EPA, EPB, EPC.
- */
-
-USBHAL * USBHAL::instance;
-
-static volatile uint32_t s_ep_compl = 0;
-static volatile uint32_t s_ep_buf_ind = 0;
-static volatile uint8_t s_usb_addr = 0;
-static volatile S_USBD_CMD_T s_setup;
-static volatile uint16_t s_ctrlin_packetsize;
-static uint8_t *g_usbd_CtrlInPointer = 0;
-static uint32_t g_usbd_CtrlMaxPktSize = 64;
-static uint32_t g_usbd_ShortPkt = 0;
-static uint32_t gEpRead = 0;
-static uint32_t gEpReadCnt = 0;
-
-void USBD_CtrlInput(void)
-{
-    int volatile i;
-    uint32_t volatile count;
-
-    // Process remained data
-    if (g_usbd_CtrlInSize >= g_usbd_CtrlMaxPktSize)
-    {
-        // Data size > MXPLD
-        for (i=0; i<(g_usbd_CtrlMaxPktSize >> 2); i++, g_usbd_CtrlInPointer+=4)
-            USBD->CEPDAT = *(uint32_t *)g_usbd_CtrlInPointer;
-        USBD_START_CEP_IN(g_usbd_CtrlMaxPktSize);
-        g_usbd_CtrlInSize -= g_usbd_CtrlMaxPktSize;
-    }
-    else
-    {
-        // Data size <= MXPLD
-        for (i=0; i<(g_usbd_CtrlInSize >> 2); i++, g_usbd_CtrlInPointer+=4)
-            USBD->CEPDAT = *(uint32_t *)g_usbd_CtrlInPointer;
-
-        count = g_usbd_CtrlInSize % 4;
-        for (i=0; i<count; i++)
-            USBD->CEPDAT_BYTE = *(uint8_t *)(g_usbd_CtrlInPointer + i);
-
-        USBD_START_CEP_IN(g_usbd_CtrlInSize);
-        g_usbd_CtrlInPointer = 0;
-        g_usbd_CtrlInSize = 0;
-    }
-}
-
-USBHAL::USBHAL(void)
-{
-    SYS_UnlockReg();
-
-    s_ep_buf_ind = 0;
-
-    memset(epCallback, 0x00, sizeof (epCallback));
-    epCallback[0] = &USBHAL::EP1_OUT_callback;
-    epCallback[1] = &USBHAL::EP2_IN_callback;
-    epCallback[2] = &USBHAL::EP3_OUT_callback;
-    epCallback[3] = &USBHAL::EP4_IN_callback;
-    epCallback[4] = &USBHAL::EP5_OUT_callback;
-    epCallback[5] = &USBHAL::EP6_IN_callback;
-    epCallback[6] = &USBHAL::EP7_OUT_callback;
-    epCallback[7] = &USBHAL::EP8_IN_callback;
-    epCallback[8] = &USBHAL::EP9_OUT_callback;
-    epCallback[9] = &USBHAL::EP10_IN_callback;
-    epCallback[10] = &USBHAL::EP11_OUT_callback;
-    epCallback[11] = &USBHAL::EP12_IN_callback;
-
-    instance = this;
-
-    /* Enable USBD module clock */
-    CLK_EnableModuleClock(USBD_MODULE);
-
-    /* Enable USB PHY's LDO33. Run as USB device. */
-    SYS->USBPHY = SYS_USBPHY_USBROLE_OTG_V33_EN | SYS_USBPHY_USBROLE_STD_USBD;
-
-    /* Enable USB PHY and wait for it ready */
-    USBD_ENABLE_PHY();
-    while (1)
-    {
-        USBD->EPAMPS = 0x20;
-        if (USBD->EPAMPS == 0x20)
-            break;
-    }
-
-    /* Force to full-speed */
-    USBD->OPER = 0;//USBD_OPER_HISPDEN_Msk;
-
-    /* Set SE0 (disconnect) */
-    USBD_SET_SE0();
-
-    NVIC_SetVector(USBD_IRQn, (uint32_t) &_usbisr);
-    NVIC_EnableIRQ(USBD_IRQn);
-}
-
-USBHAL::~USBHAL(void)
-{
-    NVIC_DisableIRQ(USBD_IRQn);
-    USBD_SET_SE0();
-    USBD_DISABLE_PHY();
-}
-
-void USBHAL::connect(void)
-{
-    USBD_ResetDMA();
-    USBD_SET_ADDR(0);
-
-    /**
-      * Control Transfer Packet Size Constraints
-      * low-speed: 8
-      * full-speed: 8, 16, 32, 64
-      * high-speed: 64
-      */
-    /* Control endpoint */
-    USBD_SetEpBufAddr(CEP, s_ep_buf_ind, MAX_PACKET_SIZE_EP0);
-    s_ep_buf_ind = MAX_PACKET_SIZE_EP0;
-
-    /* Enable USB/CEP interrupt */
-    USBD_ENABLE_USB_INT(USBD_GINTEN_USBIE_Msk | USBD_GINTEN_CEPIE_Msk);
-    USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk|USBD_CEPINTEN_STSDONEIEN_Msk);
-
-    /* Enable BUS interrupt */
-    USBD_ENABLE_BUS_INT(
-        USBD_BUSINTEN_DMADONEIEN_Msk |
-        USBD_BUSINTEN_RESUMEIEN_Msk |
-        USBD_BUSINTEN_RSTIEN_Msk |
-        USBD_BUSINTEN_VBUSDETIEN_Msk |
-        USBD_BUSINTEN_SOFIEN_Msk
-    );
-
-    /* Clear SE0 (connect) */
-    USBD_CLR_SE0();
-}
-
-void USBHAL::disconnect(void)
-{
-    /* Set SE0 (disconnect) */
-    USBD_SET_SE0();
-}
-
-void USBHAL::configureDevice(void)
-{
-    /**
-     * In USBDevice.cpp > USBDevice::requestSetConfiguration, configureDevice() is called after realiseEndpoint() (in USBCallback_setConfiguration()).
-     * So we have the following USB buffer management policy:
-     *  1. Allocate for CEP on connect().
-     *  2. Allocate for EPX in realiseEndpoint().
-     *  3. Deallocate all except for CEP in unconfigureDevice().
-     */
-}
-
-void USBHAL::unconfigureDevice(void)
-{
-    s_ep_buf_ind = MAX_PACKET_SIZE_EP0;
-}
-
-void USBHAL::setAddress(uint8_t address)
-{
-    // NOTE: Delay address setting; otherwise, USB controller won't ack.
-    s_usb_addr = address;
-}
-
-void USBHAL::remoteWakeup(void)
-{
-    USBD->OPER |= USBD_OPER_RESUMEEN_Msk;
-}
-
-bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t options)
-{
-    uint32_t ep_type;
-    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
-
-    USBD_SetEpBufAddr(ep_hw_index, s_ep_buf_ind, maxPacket);
-    s_ep_buf_ind += maxPacket;
-    USBD_SET_MAX_PAYLOAD(ep_hw_index, maxPacket);
-
-    switch (NU_EP2EPL(endpoint))
-    {
-    case 1:    case 2:
-        ep_type = USB_EP_CFG_TYPE_INT;
-        break;
-
-    case 3:    case 4:
-        ep_type = USB_EP_CFG_TYPE_ISO;
-        break;
-
-    default:
-        ep_type = USB_EP_CFG_TYPE_BULK;
-    }
-    uint32_t ep_dir = (NU_EP_DIR(endpoint) == NU_EP_DIR_IN) ? USB_EP_CFG_DIR_IN : USB_EP_CFG_DIR_OUT;
-    USBD_ConfigEp(ep_hw_index, NU_EP2EPL(endpoint), ep_type, ep_dir);
-
-    /* Enable USB/EPX interrupt */
-    // NOTE: Require USBD_GINTEN_EPAIE_Pos, USBD_GINTEN_EPBIE_Pos, ... USBD_GINTEN_EPLIE_Pos to be consecutive.
-    USBD_ENABLE_USB_INT(USBD->GINTEN | USBD_GINTEN_USBIE_Msk |
-                        USBD_GINTEN_CEPIE_Msk |
-                        1 << (ep_hw_index + USBD_GINTEN_EPAIE_Pos));  // Added USB/EPX interrupt
-
-    if (ep_dir == 0)
-        USBD_ENABLE_EP_INT(ep_hw_index, USBD_EPINTEN_RXPKIEN_Msk);
-    else
-        USBD_ENABLE_EP_INT(ep_hw_index, USBD_EPINTEN_TXPKIEN_Msk);
-    return true;
-}
-
-void USBHAL::EP0setup(uint8_t *buffer)
-{
-    uint32_t sz;
-    endpointReadResult(EP0OUT, buffer, &sz);
-}
-
-void USBHAL::EP0read(void)
-{
-    if (s_setup.wLength && ! (s_setup.bmRequestType & 0x80))
-    {
-        // Control OUT
-        USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk | USBD_CEPINTEN_RXPKIEN_Msk);
-    }
-    else
-    {
-        // Status stage
-        USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk);
-        USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR);
-        USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk);
-    }
-}
-
-void USBHAL::EP0readStage(void)
-{
-    // N/A
-}
-
-uint32_t USBHAL::EP0getReadResult(uint8_t *buffer)
-{
-    uint32_t i;
-    uint32_t ceprxcnt = USBD->CEPRXCNT;
-    for (i = 0; i < ceprxcnt; i ++)
-        *buffer ++ = USBD->CEPDAT_BYTE;
-    return ceprxcnt;
-}
-
-void USBHAL::EP0write(uint8_t *buffer, uint32_t size)
-{
-    if (buffer && size)
-    {
-        g_usbd_CtrlInPointer = buffer;
-        g_usbd_CtrlInSize = size;
-        USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk);
-        USBD_ENABLE_CEP_INT(USBD_CEPINTEN_INTKIEN_Msk);
-    }
-    else
-    {
-        /* Status stage */
-        s_ctrlin_packetsize = 0;
-        USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk);
-        USBD_SET_CEP_STATE(USB_CEPCTL_NAKCLR);
-        USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk);
-    }
-}
-
-void USBHAL::EP0getWriteResult(void)
-{
-    // N/A
-}
-
-void USBHAL::EP0stall(void)
-{
-    stallEndpoint(EP0OUT);
-}
-
-EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize)
-{
-    return EP_PENDING;
-}
-
-EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t * buffer, uint32_t *bytesRead) //spcheng
-{
-    if (endpoint == EP0OUT)
-    {
-        if (buffer) {
-            *((uint16_t *) (buffer + 0)) = (uint16_t) USBD->SETUP1_0;
-            *((uint16_t *) (buffer + 2)) = (uint16_t) USBD->SETUP3_2;
-            *((uint16_t *) (buffer + 4)) = (uint16_t) USBD->SETUP5_4;
-            *((uint16_t *) (buffer + 6)) = (uint16_t) USBD->SETUP7_6;
-        }
-
-        s_setup.bmRequestType = (uint8_t) (USBD->SETUP1_0 & 0xff);
-        s_setup.bRequest = (int8_t) (USBD->SETUP1_0 >> 8) & 0xff;
-        s_setup.wValue = (uint16_t) USBD->SETUP3_2;
-        s_setup.wIndex = (uint16_t) USBD->SETUP5_4;
-        s_setup.wLength = (uint16_t) USBD->SETUP7_6;
-    }
-    else
-    {
-        if (!(s_ep_compl & (1 << NU_EP2EPL(endpoint))))
-        {
-            while (1)
-            {
-                if (!(USBD->DMACTL & USBD_DMACTL_DMAEN_Msk))
-                    break;
-                else
-                    if (!USBD_IS_ATTACHED())
-                        break;
-            }
-            gEpReadCnt = USBD_GET_EP_DATA_COUNT(NU_EP2EPH(endpoint));
-            if (gEpReadCnt == 0)
-            {
-                *bytesRead = 0;
-                return EP_COMPLETED;
-            }
-            s_ep_compl |= (1 << NU_EP2EPL(endpoint));
-            USBD_SET_DMA_LEN(gEpReadCnt);
-            USBD_SET_DMA_ADDR((uint32_t)buffer);
-            USBD_SET_DMA_WRITE(NU_EP2EPL(endpoint));
-            USBD_ENABLE_DMA();
-            return EP_PENDING;;
-
-        }
-        else
-        {
-            if ((USBD->DMACTL & USBD_DMACTL_DMAEN_Msk))
-                return EP_PENDING;;
-
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_DMADONEIF_Msk);
-            s_ep_compl &= ~(1 << NU_EP2EPL(endpoint));
-            *bytesRead = gEpReadCnt;
-        }
-    }
-    return EP_COMPLETED;
-}
-
-
-uint32_t USBHAL::endpointReadcore(uint8_t endpoint, uint8_t *buffer)
-{
-    return 0;
-}
-
-EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size)
-{
-    uint32_t ep_logic_index = NU_EP2EPL(endpoint);
-    if (ep_logic_index == 0)
-        return EP_INVALID;
-    else
-    {
-        uint32_t ep_hw_index = NU_EP2EPH(endpoint);
-        uint32_t mps = USBD_GET_EP_MAX_PAYLOAD(ep_hw_index);
-        if (size > mps) {
-            return EP_INVALID;
-        }
-        if (size < mps)
-            g_usbd_ShortPkt = 1;
-        if (!(s_ep_compl & (1 << NU_EP2EPL(endpoint))))
-        {
-            s_ep_compl |= (1 << ep_logic_index);
-
-            while (1)
-            {
-                if (!(USBD->DMACTL & USBD_DMACTL_DMAEN_Msk))
-                    break;
-                else
-                    if (!USBD_IS_ATTACHED())
-                        break;
-            }
-            USBD_SET_DMA_LEN(size);
-            USBD_SET_DMA_ADDR((uint32_t)data);
-            USBD_SET_DMA_READ(ep_logic_index);
-            USBD_ENABLE_DMA();
-        }
-    }
-    return EP_PENDING;
-}
-
-EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint)
-{
-    if (!(s_ep_compl & (1 << NU_EP2EPL(endpoint))))
-        return EP_COMPLETED;
-    else
-    {
-        if ((USBD_GET_EP_DATA_COUNT(NU_EP2EPH(endpoint))) == 0 && !(USBD->DMACTL & USBD_DMACTL_DMAEN_Msk))
-        {
-            s_ep_compl &= ~(s_ep_compl & (1 << NU_EP2EPL(endpoint)));
-            return EP_COMPLETED;
-        }
-    }
-    return EP_PENDING;
-}
-
-void USBHAL::stallEndpoint(uint8_t endpoint)
-{
-    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
-    if (ep_hw_index >= NUMBER_OF_PHYSICAL_ENDPOINTS)
-        return;
-    USBD_SetStall(ep_hw_index);
-}
-
-void USBHAL::unstallEndpoint(uint8_t endpoint)
-{
-    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
-    if (ep_hw_index >= NUMBER_OF_PHYSICAL_ENDPOINTS)
-        return;
-    USBD_ClearStall(ep_hw_index);
-}
-
-bool USBHAL::getEndpointStallState(uint8_t endpoint)
-{
-    uint32_t ep_hw_index = NU_EP2EPH(endpoint);
-    if (ep_hw_index >= NUMBER_OF_PHYSICAL_ENDPOINTS)
-        return false;
-    return USBD_GetStall(ep_hw_index) ? 1 : 0;
-}
-
-void USBHAL::_usbisr(void)
-{
-    MBED_ASSERT(instance);
-    instance->usbisr();
-}
-
-void USBHAL::usbisr(void)
-{
-    uint32_t gintsts = USBD->GINTSTS & USBD->GINTEN;
-    if (! gintsts)
-        return;
-
-    if (gintsts & USBD_GINTSTS_USBIF_Msk)
-    {
-        uint32_t busintsts = USBD->BUSINTSTS & USBD->BUSINTEN;
-
-        /* SOF */
-        if (busintsts & USBD_BUSINTSTS_SOFIF_Msk)
-        {
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_SOFIF_Msk);
-            // TODO
-            SOF(USBD->FRAMECNT >> 3);
-        }
-
-        /* Reset */
-        if (busintsts & USBD_BUSINTSTS_RSTIF_Msk)
-        {
-            connect();
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_RSTIF_Msk);
-            USBD_CLR_CEP_INT_FLAG(0x1ffc);
-        }
-
-        /* Resume */
-        if (busintsts & USBD_BUSINTSTS_RESUMEIF_Msk)
-        {
-            USBD_ENABLE_BUS_INT(USBD_BUSINTEN_RSTIEN_Msk|USBD_BUSINTEN_SUSPENDIEN_Msk | USBD_BUSINTEN_SOFIEN_Msk | USBD_BUSINTEN_SOFIEN_Msk);
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_RESUMEIF_Msk);
-        }
-
-        /* Suspend */
-        if (busintsts & USBD_BUSINTSTS_SUSPENDIF_Msk)
-        {
-            USBD_ENABLE_BUS_INT(USBD_BUSINTEN_RSTIEN_Msk | USBD_BUSINTEN_RESUMEIEN_Msk |USBD_BUSINTEN_SOFIEN_Msk);
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_SUSPENDIF_Msk);
-        }
-
-        /* High-speed */
-        if (busintsts & USBD_BUSINTSTS_HISPDIF_Msk)
-        {
-            USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk);
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_HISPDIF_Msk);
-        }
-
-        /* DMA */
-        if (busintsts & USBD_BUSINTSTS_DMADONEIF_Msk)
-        {
-            if (USBD->DMACTL & 0x10) /* IN - Read */
-            {
-                if (g_usbd_ShortPkt)
-                {
-                    uint32_t ep_hw_index = NU_EPL2EPH((USBD->DMACTL & 0xF));
-                    USBD_SET_EP_SHORT_PACKET(ep_hw_index);
-                    g_usbd_ShortPkt = 0;
-                }
-            }
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_DMADONEIF_Msk);
-        }
-
-        /* PHY clock available */
-        if (busintsts & USBD_BUSINTSTS_PHYCLKVLDIF_Msk)
-        {
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_PHYCLKVLDIF_Msk);
-        }
-
-        /* VBUS plug-in */
-        if (busintsts & USBD_BUSINTSTS_VBUSDETIF_Msk)
-        {
-            if (USBD_IS_ATTACHED())
-            {
-                // USB plug-in
-                USBD_ENABLE_USB();
-            }
-            else
-            {
-                // USB unplug-out
-                USBD_DISABLE_USB();
-            }
-            USBD_CLR_BUS_INT_FLAG(USBD_BUSINTSTS_VBUSDETIF_Msk);
-        }
-    }
-
-    /* CEP interrupts */
-    if (gintsts & USBD_GINTSTS_CEPIF_Msk)
-    {
-        uint32_t cepintsts =  USBD->CEPINTSTS & USBD->CEPINTEN;
-
-        /* SETUP token packet */
-        if (cepintsts & USBD_CEPINTSTS_SETUPTKIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_SETUPTKIF_Msk);
-            return;
-        }
-
-        /* SETUP transaction */
-        if (cepintsts & USBD_CEPINTSTS_SETUPPKIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_SETUPPKIF_Msk);
-            EP0setupCallback();
-            return;
-        }
-
-        /* OUT token packet */
-        if (cepintsts & USBD_CEPINTSTS_OUTTKIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_OUTTKIF_Msk);
-            USBD_ENABLE_CEP_INT(USBD_CEPINTEN_STSDONEIEN_Msk);
-            return;
-        }
-
-        /* IN token packet */
-        if (cepintsts & USBD_CEPINTSTS_INTKIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_INTKIF_Msk);
-            if (!(cepintsts & USBD_CEPINTSTS_STSDONEIF_Msk))
-            {
-                USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_TXPKIF_Msk);
-                USBD_ENABLE_CEP_INT(USBD_CEPINTEN_TXPKIEN_Msk);
-                USBD_CtrlInput();
-            }
-            else
-            {
-                USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_TXPKIF_Msk);
-                USBD_ENABLE_CEP_INT(USBD_CEPINTEN_TXPKIEN_Msk|USBD_CEPINTEN_STSDONEIEN_Msk);
-            }
-            return;
-        }
-
-        /* PING packet */
-        if (cepintsts & USBD_CEPINTSTS_PINGIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_PINGIF_Msk);
-            return;
-        }
-
-        /* IN transaction */
-        if (cepintsts & USBD_CEPINTSTS_TXPKIF_Msk)
-        {
-            EP0in();
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_TXPKIF_Msk);
-            return;
-        }
-
-        /* OUT transaction */
-        if (cepintsts & USBD_CEPINTSTS_RXPKIF_Msk)
-        {
-            EP0out();
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_RXPKIF_Msk);
-            return;
-        }
-
-        /* NAK handshake packet */
-        if (cepintsts & USBD_CEPINTSTS_NAKIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_NAKIF_Msk);
-            return;
-        }
-
-        /* STALL handshake packet */
-        if (cepintsts & USBD_CEPINTSTS_STALLIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STALLIF_Msk);
-            return;
-        }
-
-        /* ERR special packet */
-        if (cepintsts & USBD_CEPINTSTS_ERRIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_ERRIF_Msk);
-            return;
-        }
-
-        /* Status stage transaction */
-        if (cepintsts & USBD_CEPINTSTS_STSDONEIF_Msk)
-        {
-            if (s_usb_addr)
-            {
-                USBD_SET_ADDR(s_usb_addr);
-                s_usb_addr = 0;
-            }
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_STSDONEIF_Msk);
-            USBD_ENABLE_CEP_INT(USBD_CEPINTEN_SETUPPKIEN_Msk);
-            return;
-        }
-
-        /* Buffer Full */
-        if (cepintsts & USBD_CEPINTSTS_BUFFULLIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_BUFFULLIF_Msk);
-            return;
-        }
-
-        /* Buffer Empty */
-        if (cepintsts & USBD_CEPINTSTS_BUFEMPTYIF_Msk)
-        {
-            USBD_CLR_CEP_INT_FLAG(USBD_CEPINTSTS_BUFEMPTYIF_Msk);
-            return;
-        }
-    }
-    /* EPA, EPB, EPC, ... EPL interrupts */
-    uint32_t gintsts_epx = gintsts >> 2;
-    uint32_t ep_hw_index = 0;
-    while (gintsts_epx) {
-        if (gintsts_epx & 0x01)
-        {
-            uint32_t epxintsts = USBD_GET_EP_INT_FLAG(ep_hw_index) & USBD_GET_EP_INT_EN(ep_hw_index);
-
-            USBD_CLR_EP_INT_FLAG(ep_hw_index, epxintsts);
-
-            /* Buffer Full */
-            if (epxintsts & USBD_EPINTSTS_BUFFULLIF_Msk)
-            {
-            }
-
-            /* Buffer Empty */
-            if (epxintsts & USBD_EPINTSTS_BUFEMPTYIF_Msk)
-            {
-            }
-
-            /* Short Packet Transferred */
-            if (epxintsts & USBD_EPINTSTS_SHORTTXIF_Msk)
-            {
-            }
-
-            /* Data Packet Transmitted */
-            if (epxintsts & USBD_EPINTSTS_TXPKIF_Msk)
-            {
-                s_ep_compl &= ~(1 << (NU_EPH2EPL(ep_hw_index)));
-                if ((instance->*(epCallback[ep_hw_index]))())
-                {
-                }
-            }
-
-            /* Data Packet Received */
-            if (epxintsts & USBD_EPINTSTS_RXPKIF_Msk)
-            {
-                if ((instance->*(epCallback[ep_hw_index]))())
-                {
-
-                }
-            }
-
-            /* OUT token packet */
-            if (epxintsts & USBD_EPINTSTS_OUTTKIF_Msk)
-            {
-            }
-
-            /* IN token packet */
-            if (epxintsts & USBD_EPINTSTS_INTKIF_Msk)
-            {
-            }
-
-            /* PING packet */
-            if (epxintsts & USBD_EPINTSTS_PINGIF_Msk)
-            {
-            }
-
-            /* NAK handshake packet sent to Host */
-            if (epxintsts & USBD_EPINTSTS_NAKIF_Msk)
-            {
-            }
-
-            /* STALL handshake packet sent to Host */
-            if (epxintsts & USBD_EPINTSTS_STALLIF_Msk)
-            {
-            }
-
-            /* NYET handshake packet sent to Host */
-            if (epxintsts & USBD_EPINTSTS_NYETIF_Msk)
-            {
-            }
-
-            /* ERR packet sent to Host */
-            if (epxintsts & USBD_EPINTSTS_ERRIF_Msk)
-            {
-            }
-
-            /* Bulk Out Short Packet Received */
-            if (epxintsts & USBD_EPINTSTS_SHORTRXIF_Msk)
-            {
-            }
-        }
-        gintsts_epx = gintsts_epx >> 1;
-        ep_hw_index++;
-    }
-}
-#endif
-