Diff: targets/TARGET_NUVOTON/TARGET_NUC472/USBHAL_NUC472.cpp

Revision:

71:53949e6131f6

diff -r 2c525a50f1b6 -r 53949e6131f6 targets/TARGET_NUVOTON/TARGET_NUC472/USBHAL_NUC472.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_NUC472/USBHAL_NUC472.cpp	Thu Jul 27 12:14:04 2017 +0100
@@ -0,0 +1,730 @@
+/* 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
+