Diff: USBDevice/USBHAL_EFM32.cpp

Revision:

71:53949e6131f6

Parent:

70:2c525a50f1b6

--- a/USBDevice/USBHAL_EFM32.cpp	Thu Jul 20 10:14:36 2017 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,775 +0,0 @@
-/* Copyright 2015 Silicon Labs, http://www.silabs.com
- *
- * 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_EFM32GG_STK3700 || \
-    defined TARGET_EFM32LG_STK3600 || \
-    defined TARGET_EFM32WG_STK3800 || \
-    defined TARGET_EFM32HG_STK3400
-
-#include "USBHAL.h"
-#include "em_usb.h"
-#include "em_usbtypes.h"
-#include "em_usbhal.h"
-#include "em_usbd.h"
-
-#include "sleepmodes.h"
-
-enum USBISRCommand {
-    CMD_HANDLED = 0,
-    CMD_EP0SETUP,
-    CMD_EP0IN,
-    CMD_EP0OUT,
-    CMD_EP_XFER_COMPLETED,
-    CMD_SOF,
-    CMD_BUSRESET,
-    CMD_SUSPEND_STATE_CHANGED,
-    CMD_ENUM_END_MARKER
-};
-
-enum IEPStatus {
-    NOT_CONFIGURED = 0,
-    IDLE = 1,
-    READ_PENDING = 2,
-    WRITE_PENDING = 3,
-    READ_COMPLETE = 4,
-    WRITE_COMPLETE = 5,
-    FAILED_INVALID = 6,
-    FAILED_STALLED = 7
-};
-
-typedef struct {
-    IEPStatus status;
-    uint32_t byte_count;
-    uint32_t max_packet;
-    USB_XferCompleteCb_TypeDef intern_cb;
-    uint8_t *data_buf;
-} ep_state_t;
-
-USBHAL * USBHAL::instance;
-static uint8_t ep0setupdata[8];
-static ep_state_t ep_state[NUMBER_OF_ENDPOINTS];
-#ifdef USB_USE_DYNAMIC_MEMORY
-static uint8_t ep0in_data_buf[MAX_PACKET_SIZE_EP0] __attribute__ ((aligned (4)));
-static uint8_t ep0out_data_buf[MAX_PACKET_SIZE_EP0]; // FIXME: does this need to be this big?
-#else
-static uint8_t ep_data_buf[NUMBER_OF_ENDPOINTS][64] __attribute__ ((aligned (4)));
-#endif
-
-static void run_cmd(USBISRCommand cmd, uint32_t param);
-static void (*isrptr)() = NULL;
-static USBISRCommand usb_isrcmd = CMD_HANDLED;
-static uint32_t usb_isrcmd_param = 0;
-
-extern "C" void usbhal_allow_em2(bool allow_em2);
-
-#ifdef DEBUG_USB_API
-#define TRACE(fmt,...)            printf("USB:   %s: " fmt "\n", __func__, __VA_ARGS__);
-#define TRACE_FUNC_IN             printf("USB: > %s\n",__func__);
-#define TRACE_FUNC_IN_P(fmt, ...) printf("USB: > %s: " fmt "\n", __func__, __VA_ARGS__);
-#else
-#define TRACE(fmt,...)
-#define TRACE_FUNC_IN
-#define TRACE_FUNC_IN_P(fmt, ...)
-#endif
-
-static EP_STATUS internEndpointRead(uint8_t ep, uint32_t maxSize);
-
-static int usbhal_xfer_complete_cb(uint8_t epaddr, USB_Status_TypeDef status,
-                                   uint32_t xferred, uint32_t remaining);
-static void usbhal_free_buffers(void);
-
-/* Internal EP transfer complete callbacks */
-#define EPCB(n) static int usbhal_xfer_complete_cb_##n(USB_Status_TypeDef status,              \
-                                                       uint32_t xferred, uint32_t remaining) { \
-        return usbhal_xfer_complete_cb(n, status, xferred, remaining);                         \
-}
-/*   ------^   */
-EPCB(EP0OUT)
-EPCB(EP0IN)
-EPCB(EP1OUT)
-EPCB(EP1IN)
-EPCB(EP2OUT)
-EPCB(EP2IN)
-EPCB(EP3OUT)
-EPCB(EP3IN)
-#ifndef TARGET_EFM32HG_STK3400
-EPCB(EP4OUT)
-EPCB(EP4IN)
-EPCB(EP5OUT)
-EPCB(EP5IN)
-EPCB(EP6OUT)
-EPCB(EP6IN)
-#endif
-
-static inline bool is_aligned(const void *pointer, size_t byte_count)
-{
-    return ((uintptr_t)pointer % byte_count == 0);
-}
-
-USBHAL::USBHAL(void)
-{
-    TRACE_FUNC_IN;
-
-    isrptr = &USBHAL::_usbisr;
-
-    if (instance) {
-        TRACE("Assert self failed! instance=%p", instance);
-        abort();
-    }
-    instance = this;
-
-    // When USB is active, we can't go below EM1. This block may
-    // be dynamically removed/reinstated to allow deeper sleep.
-    usbhal_allow_em2(false);
-
-    // When in suspend / Vbus off we can go to EM2, but never below
-    // that as long as USB is being used. Despite the name the call here
-    // blocks entering modes _below_ EM2, but allows EM2.
-    blockSleepMode(EM2);
-
-    epCallback[EP0OUT] = NULL;
-    epCallback[EP0IN ] = NULL;
-    epCallback[EP1OUT] = &USBHAL::EP1_OUT_callback;
-    epCallback[EP1IN ] = &USBHAL::EP1_IN_callback;
-    epCallback[EP2OUT] = &USBHAL::EP2_OUT_callback;
-    epCallback[EP2IN ] = &USBHAL::EP2_IN_callback;
-    epCallback[EP3OUT] = &USBHAL::EP3_OUT_callback;
-    epCallback[EP3IN ] = &USBHAL::EP3_IN_callback;
-#ifndef TARGET_EFM32HG_STK3400
-    epCallback[EP4OUT] = &USBHAL::EP4_OUT_callback;
-    epCallback[EP4IN ] = &USBHAL::EP4_IN_callback;
-    epCallback[EP5OUT] = &USBHAL::EP5_OUT_callback;
-    epCallback[EP5IN ] = &USBHAL::EP5_IN_callback;
-    epCallback[EP6OUT] = &USBHAL::EP6_OUT_callback;
-    epCallback[EP6IN ] = &USBHAL::EP6_IN_callback;
-#endif
-
-    memset(ep_state, 0, sizeof(ep_state));
-
-    ep_state[EP0OUT].intern_cb = usbhal_xfer_complete_cb_EP0OUT;
-    ep_state[EP0IN ].intern_cb = usbhal_xfer_complete_cb_EP0IN;
-    ep_state[EP1OUT].intern_cb = usbhal_xfer_complete_cb_EP1OUT;
-    ep_state[EP1IN ].intern_cb = usbhal_xfer_complete_cb_EP1IN;
-    ep_state[EP2OUT].intern_cb = usbhal_xfer_complete_cb_EP2OUT;
-    ep_state[EP2IN ].intern_cb = usbhal_xfer_complete_cb_EP2IN;
-    ep_state[EP3OUT].intern_cb = usbhal_xfer_complete_cb_EP3OUT;
-    ep_state[EP3IN ].intern_cb = usbhal_xfer_complete_cb_EP3IN;
-#ifndef TARGET_EFM32HG_STK3400
-    ep_state[EP4OUT].intern_cb = usbhal_xfer_complete_cb_EP4OUT;
-    ep_state[EP4IN ].intern_cb = usbhal_xfer_complete_cb_EP4IN;
-    ep_state[EP5OUT].intern_cb = usbhal_xfer_complete_cb_EP5OUT;
-    ep_state[EP5IN ].intern_cb = usbhal_xfer_complete_cb_EP5IN;
-    ep_state[EP6OUT].intern_cb = usbhal_xfer_complete_cb_EP6OUT;
-    ep_state[EP6IN ].intern_cb = usbhal_xfer_complete_cb_EP6IN;
-#endif
-
-#ifdef USB_USE_DYNAMIC_MEMORY
-    ep_state[EP0OUT].data_buf = ep0out_data_buf;
-    ep_state[EP0IN].data_buf = ep0in_data_buf;
-#else
-    for (int i=0 ; i<NUMBER_OF_ENDPOINTS ; i++) {
-        ep_state[i].data_buf = ep_data_buf[i];
-    }
-#endif
-}
-
-USBHAL::~USBHAL(void)
-{
-    TRACE_FUNC_IN;
-    USBD_AbortAllTransfers();
-    USBD_Disconnect();
-    usbhal_free_buffers();
-
-    usbhal_allow_em2(true);
-    unblockSleepMode(EM2);
-}
-
-extern "C" void usbhal_allow_em2(bool allow_em2)
-{
-    if (allow_em2) {
-        // unblockSleepMode is safe to call even if we would unblock
-        // an already unblocked mode, so no checks here.
-        unblockSleepMode(EM1);
-    } else {
-        blockSleepMode(EM1);
-    }
-}
-
-static void usbhal_reset_cb(void)
-{
-    TRACE_FUNC_IN;
-    run_cmd(CMD_BUSRESET, 0);
-}
-
-#ifdef DEBUG_USB_API
-static const char *usbstate[] = { "NONE", "ATTACHED", "POWERED", "DEFAULT",
-                                  "ADDRESSED", "CONFIGURED", "SUSPENDED", "???" };
-#endif
-
-static void usbhal_state_change_cb(USBD_State_TypeDef oldState,
-                                   USBD_State_TypeDef newState)
-{
-    TRACE("state changed %s -> %s", usbstate[oldState], usbstate[newState]);
-
-    if (oldState == USBD_STATE_SUSPENDED) {
-        run_cmd(CMD_SUSPEND_STATE_CHANGED, 0);
-    }
-
-    if (newState == USBD_STATE_SUSPENDED) {
-        run_cmd(CMD_SUSPEND_STATE_CHANGED, 1);
-    }
-
-    // Should call connectStateChanged from here as well but there is
-    // no documentation on when to actually do so. (And the implementation
-    // in USBDevice.cpp is a stub)
-
-    // HACK! Since connectStateChanged is not used, indicate the loss
-    // off connection by reporting a bus reset. This causes USBDevice
-    // to realise that at least it's not in CONFIGURED anymore, and
-    // stop trying to read/write in a busyloop.
-    if (newState == USBD_STATE_NONE) {
-        run_cmd(CMD_BUSRESET, 0);
-    }
-}
-
-static int usbhal_setupcmd_cb(const USB_Setup_TypeDef *setup)
-{
-    TRACE_FUNC_IN;
-    if (!setup) {
-        EFM_ASSERT(false);
-        return USB_STATUS_REQ_ERR;
-    }
-
-    memcpy(ep0setupdata, setup, 8);
-    run_cmd(CMD_EP0SETUP, 0);
-
-    return USB_STATUS_OK;
-}
-
-static void usbhal_sof_cb(uint16_t frameNum)
-{
-    run_cmd(CMD_SOF, frameNum);
-}
-
-static void usbhal_free_buffers(void)
-{
-#ifdef USB_USE_DYNAMIC_MEMORY
-    TRACE_FUNC_IN;
-
-    for (int i=EP1OUT ; i<NUMBER_OF_ENDPOINTS ; i++ ) {
-        if (ep_state[i].data_buf) {
-            free(ep_state[i].data_buf);
-            ep_state[i].data_buf = NULL;
-        }
-    }
-#endif
-}
-
-void USBHAL::connect(void)
-{
-    TRACE_FUNC_IN;
-
-    // Init datastructures must be static - driver will use these even after the init function exits!
-
-    static const uint8_t buffer_multiplier[] = { 1 }; // Mult 1 for control EP
-    static const USBD_Callbacks_TypeDef usbd_callbacks = {
-        .usbReset = usbhal_reset_cb,
-        .usbStateChange = usbhal_state_change_cb,
-        .setupCmd = usbhal_setupcmd_cb,
-        .isSelfPowered = NULL,
-        .sofInt = usbhal_sof_cb
-    };
-
-    USBD_Init_TypeDef initdata = {
-        .deviceDescriptor = NULL,
-        .configDescriptor = NULL,
-        .stringDescriptors = NULL,
-        .numberOfStrings = 0,
-        .bufferingMultiplier = buffer_multiplier,
-        .callbacks = &usbd_callbacks,
-        .reserved = 0
-    };
-
-    int ret = USBD_Init(&initdata);
-
-    TRACE("init = %d, devicedesc = %lx, configdesc = %lx", ret,
-          (uint32_t) initdata.deviceDescriptor,
-          (uint32_t) initdata.configDescriptor);
-
-    EFM_ASSERT(ret == USB_STATUS_OK);
-}
-
-void USBHAL::disconnect(void)
-{
-    TRACE_FUNC_IN;
-    USBD_Disconnect();
-}
-
-void USBHAL::configureDevice(void)
-{
-    TRACE_FUNC_IN;
-    USBD_SetUsbState(USBD_STATE_CONFIGURED);
-}
-
-void USBHAL::unconfigureDevice(void)
-{
-    TRACE_FUNC_IN;
-    USBD_SetUsbState(USBD_STATE_DEFAULT);
-    usbhal_free_buffers();
-}
-
-void USBHAL::setAddress(uint8_t address)
-{
-    TRACE_FUNC_IN_P("addr 0x%x", (unsigned)address);
-    USBD_SetAddress(address);
-}
-
-void USBHAL::remoteWakeup(void)
-{
-    TRACE_FUNC_IN;
-    USBD_RemoteWakeup();
-}
-
-void USBHAL::EP0setup(uint8_t *buffer)
-{
-    TRACE_FUNC_IN;
-    EFM_ASSERT(buffer);
-    if (buffer) {
-        memcpy(buffer, ep0setupdata, 8);
-    }
-}
-
-void USBHAL::EP0read(void)
-{
-    TRACE_FUNC_IN;
-    (void)internEndpointRead(0, MAX_PACKET_SIZE_EP0);
-}
-
-void USBHAL::EP0readStage(void)
-{
-    TRACE_FUNC_IN;
-    // Not needed
-}
-
-uint32_t USBHAL::EP0getReadResult(uint8_t *buffer)
-{
-    TRACE_FUNC_IN;
-    EFM_ASSERT(buffer);
-
-    uint32_t read = 0;
-    endpointReadResult(0, buffer, &read);
-    return read;
-}
-
-static int usbhal_xfer_complete_cb(uint8_t ep, USB_Status_TypeDef status,
-                                   uint32_t xferred, uint32_t remaining)
-{
-    TRACE_FUNC_IN_P("ep 0x%x, status %u, xferred %lu, rem %lu",
-                    ep, status, xferred, remaining);
-
-    if (ep >= NUMBER_OF_ENDPOINTS) {
-        EFM_ASSERT(false);
-        return USB_STATUS_REQ_ERR;
-    }
-
-    switch (ep) {
-        case EP0OUT:
-            if (ep_state[EP0OUT].status == READ_PENDING) {
-                ep_state[EP0OUT].status = READ_COMPLETE;
-                ep_state[EP0OUT].byte_count = xferred;
-                // drop zlp
-                if (xferred == 0) {
-                    break;
-                }
-            }
-            run_cmd(CMD_EP0OUT, 0);
-            break;
-
-        case EP0IN:
-            run_cmd(CMD_EP0IN, 0);
-            break;
-
-        default:
-            bool write = ep & 1;
-
-            if (status == USB_STATUS_OK) {
-                if (!write && ep_state[ep].status == READ_PENDING) {
-                    ep_state[ep].status = READ_COMPLETE;
-                    ep_state[ep].byte_count = xferred;
-                } else if (write && ep_state[ep].status == WRITE_PENDING) {
-                    ep_state[ep].status = WRITE_COMPLETE;
-                } else {
-                    ep_state[ep].status = FAILED_INVALID;
-                }
-            } else {
-                ep_state[ep].status = FAILED_INVALID;
-            }
-
-            if (ep_state[ep].status != FAILED_INVALID) {
-                run_cmd(CMD_EP_XFER_COMPLETED, ep);
-            }
-            break;
-    }
-
-    return USB_STATUS_OK;
-}
-
-void USBHAL::EP0write(uint8_t *buffer, uint32_t size)
-{
-    //TRACE_FUNC_IN_P("buffer %lx, size %lu", (uint32_t) buffer, size);
-
-    int ret;
-    USB_XferCompleteCb_TypeDef cb = ep_state[EP0IN].intern_cb;
-
-    EFM_ASSERT((buffer != NULL) || (size == 0));
-    EFM_ASSERT(size <= MAX_PACKET_SIZE_EP0);
-
-    if (!buffer || size == 0) {
-        // No callback after writing EP0 ZLP
-        cb = NULL;
-    }
-
-    if (buffer && !is_aligned(buffer,4)) {
-        // Copy unaligned data to write-buffer before USBD_Write
-        memcpy(ep_state[EP0IN].data_buf, buffer, size);
-        ret = USBD_Write(0, ep_state[EP0IN].data_buf, size, cb);
-    } else {
-        ret = USBD_Write(0, buffer, size, cb);
-    }
-
-    if (ret != USB_STATUS_OK) {
-        TRACE("FAILED - ret %d", ret);
-    }
-}
-
-void USBHAL::EP0stall(void)
-{
-    TRACE_FUNC_IN;
-    USBD_StallEp0();
-}
-
-static EP_STATUS internEndpointRead(uint8_t ep, uint32_t maxSize)
-{
-    //TRACE_FUNC_IN_P("endpoint 0x%x, size %ld, cb %d", (unsigned)ep, maxSize, useCallback);
-
-    if (ep >= NUMBER_OF_ENDPOINTS) {
-        EFM_ASSERT(false);
-        return EP_INVALID;
-    }
-
-    ep_state[ep].status = READ_PENDING;
-
-    int ret = USBD_Read(USB_EP_TO_ADDR(ep), ep_state[ep].data_buf, maxSize,
-                        ep_state[ep].intern_cb);
-
-    if (ret == USB_STATUS_OK) {
-        return EP_PENDING;
-    } else {
-        TRACE("FAILED - ret %d", ret);
-
-        if (ret == USB_STATUS_EP_STALLED) {
-            return EP_STALLED;
-        } else {
-            return EP_INVALID;
-        }
-    }
-}
-
-EP_STATUS USBHAL::endpointRead(uint8_t endpoint, uint32_t maximumSize)
-{
-    return internEndpointRead(endpoint, maximumSize);
-}
-
-EP_STATUS USBHAL::endpointReadResult(uint8_t endpoint, uint8_t *data, uint32_t *bytesRead)
-{
-    TRACE_FUNC_IN;
-
-    if (endpoint >= NUMBER_OF_ENDPOINTS) {
-        EFM_ASSERT(false);
-        return EP_INVALID;
-    }
-
-    EFM_ASSERT(data);
-    EFM_ASSERT(bytesRead);
-    if (!data || !bytesRead) {
-        return EP_INVALID;
-    }
-
-    switch (ep_state[endpoint].status) {
-        case READ_PENDING:
-            return EP_PENDING;
-
-        case READ_COMPLETE:
-            memcpy(data, ep_state[endpoint].data_buf, ep_state[endpoint].byte_count);
-            *bytesRead = ep_state[endpoint].byte_count;
-            ep_state[endpoint].status = IDLE;
-            return EP_COMPLETED;
-
-        case FAILED_STALLED:
-            ep_state[endpoint].status = IDLE;
-            return EP_STALLED;
-
-        default:
-            ep_state[endpoint].status = IDLE;
-            return EP_INVALID;
-    }
-}
-
-EP_STATUS USBHAL::endpointWrite(uint8_t endpoint, uint8_t *data, uint32_t size)
-{
-    TRACE_FUNC_IN_P("endpoint 0x%x, data 0x%lx, size %lu", (unsigned )endpoint, (uint32_t)data, size);
-
-    EFM_ASSERT(endpoint < NUMBER_OF_ENDPOINTS);
-    EFM_ASSERT(endpoint > EP0IN);
-    EFM_ASSERT(size <= ep_state[endpoint].max_packet);
-    EFM_ASSERT(data);
-
-    uint8_t ep = USB_EP_TO_INDEX(endpoint);
-
-    if (endpoint >= NUMBER_OF_ENDPOINTS || endpoint <= EP0IN) {
-        return EP_INVALID;
-    }
-
-    if (size > ep_state[endpoint].max_packet) {
-        return EP_INVALID;
-    }
-
-    if (!data) {
-        return EP_INVALID;
-    }
-
-    memcpy(ep_state[ep].data_buf, data, size);
-
-    ep_state[ep].status = WRITE_PENDING;
-    int ret = USBD_Write(USB_EP_TO_ADDR(endpoint), ep_state[ep].data_buf, size, ep_state[ep].intern_cb);
-
-    if (ret == USB_STATUS_EP_STALLED) {
-        ep_state[ep].status = IDLE;
-        return EP_STALLED;
-    } else if (ret != USB_STATUS_OK) {
-        ep_state[ep].status = IDLE;
-        return EP_INVALID;
-    }
-
-    return EP_PENDING;
-}
-
-EP_STATUS USBHAL::endpointWriteResult(uint8_t endpoint)
-{
-    if (endpoint >= NUMBER_OF_ENDPOINTS) {
-        EFM_ASSERT(false);
-        return EP_INVALID;
-    }
-
-    switch (ep_state[endpoint].status) {
-        case WRITE_PENDING:
-            return EP_PENDING;
-
-        case WRITE_COMPLETE:
-            ep_state[endpoint].status = IDLE;
-            return EP_COMPLETED;
-
-        case FAILED_STALLED:
-            ep_state[endpoint].status = IDLE;
-            return EP_STALLED;
-
-        default:
-            ep_state[endpoint].status = IDLE;
-            return EP_INVALID;
-    }
-}
-
-void USBHAL::stallEndpoint(uint8_t endpoint)
-{
-    TRACE_FUNC_IN;
-
-    EFM_ASSERT(endpoint < NUMBER_OF_ENDPOINTS);
-    EFM_ASSERT((endpoint != EP0OUT) && (endpoint != EP0IN));
-
-    USBD_StallEp(USB_EP_TO_ADDR(endpoint));
-}
-
-void USBHAL::unstallEndpoint(uint8_t endpoint)
-{
-    TRACE_FUNC_IN;
-
-    EFM_ASSERT(endpoint < NUMBER_OF_ENDPOINTS);
-    EFM_ASSERT((endpoint != EP0OUT) && (endpoint != EP0IN));
-
-    USBD_UnStallEp(USB_EP_TO_ADDR(endpoint));
-}
-
-bool USBHAL::realiseEndpoint(uint8_t endpoint, uint32_t maxPacket, uint32_t options)
-{
-    TRACE_FUNC_IN_P("endpoint %d, packetsize %ld, options 0x%lx", endpoint,
-                    maxPacket, options);
-
-    int mult = 1; // RX/TX buffer size multiplier
-    int type = USB_EPTYPE_INTR;
-
-    if (endpoint >= NUMBER_OF_ENDPOINTS) {
-        EFM_ASSERT(false);
-        return false;
-    }
-
-    if (endpoint == EP0IN || endpoint == EP0OUT) {
-        EFM_ASSERT(false);
-        return false;
-    }
-
-    ep_state[endpoint].max_packet = 0;
-
-    if (endpoint == EPISO_OUT || endpoint ==  EPISO_IN) {
-        if (maxPacket > MAX_PACKET_SIZE_EPISO) {
-            EFM_ASSERT(false);
-            return false;
-        }
-    } else if ((maxPacket > MAX_PACKET_SIZE_EPBULK) || (maxPacket > MAX_PACKET_SIZE_EPINT)) {
-        EFM_ASSERT(false);
-        return false;
-    }
-
-    // USBDevice performs a read right after creating the endpoints,
-    // before calling configureDevice. The read will fail since
-    // at that point the device state is still ADDRESSED. Workaround
-    // is to force configured state here.
-    //
-    // This relies on USBDevice to not call realiseEndpoint unless
-    // it is transitioning to the CONFIGURED state.
-    USBD_SetUsbState(USBD_STATE_CONFIGURED);
-
-    // Why doesn't this function have a type param? This is silly...
-    switch (endpoint) {
-        case EPBULK_OUT:
-        case EPBULK_IN:
-            type = USB_EPTYPE_BULK;
-            mult = 2;
-            break;
-        case EPINT_OUT:
-        case EPINT_IN:
-            type = USB_EPTYPE_INTR;
-            mult = 1;
-            break;
-        case EPISO_OUT:
-        case EPISO_IN:
-            type = USB_EPTYPE_ISOC;
-            mult = 2; // ?
-            break;
-    }
-
-    // Some options force the endpoint to a specific type
-    if( options & ISOCHRONOUS ) {
-        type = USB_EPTYPE_ISOC;
-        mult = 2; // ?
-    } else if ( options & RATE_FEEDBACK_MODE ) {
-        // No support for whatever rate feedback is, but for interrupt only
-        type = USB_EPTYPE_INTR;
-        mult = 1;
-    }
-
-#ifdef USB_USE_DYNAMIC_MEMORY
-    if (ep_state[endpoint].data_buf) {
-        free(ep_state[endpoint].data_buf);
-    }
-
-    ep_state[endpoint].data_buf = (uint8_t *)malloc(maxPacket);
-
-    if (!ep_state[endpoint].data_buf) {
-        EFM_ASSERT(false);
-        return false;
-    }
-#endif
-
-    int ret = USBD_AddEndpoint(USB_EP_TO_ADDR(endpoint), type, maxPacket, mult);
-
-    if (ret == USB_STATUS_OK) {
-        ep_state[endpoint].status = IDLE;
-        ep_state[endpoint].max_packet = maxPacket;
-        return true;
-    } else {
-        return false;
-    }
-}
-
-bool USBHAL::getEndpointStallState(unsigned char endpoint)
-{
-    TRACE_FUNC_IN;
-    if (endpoint >= NUMBER_OF_ENDPOINTS) {
-        EFM_ASSERT(false);
-        return false;
-    }
-    return USBD_EpIsStalled(USB_EP_TO_ADDR(endpoint));
-}
-
-static void run_cmd(USBISRCommand cmd, uint32_t param)
-{
-    if (usb_isrcmd != CMD_HANDLED || cmd >= CMD_ENUM_END_MARKER) {
-        EFM_ASSERT(false);
-        abort();
-    }
-
-    usb_isrcmd = cmd;
-    usb_isrcmd_param = param;
-    isrptr();
-}
-
-void USBHAL::_usbisr(void)
-{
-    EFM_ASSERT(instance);
-    instance->usbisr();
-}
-
-void USBHAL::usbisr(void)
-{
-    //TRACE_FUNC_IN;
-
-    // This "ISR" is used just to route callbacks from SiL USB driver
-    // callback context (which can not call protected/private USBHAL
-    // methods), to the actual USBHAL.
-
-    EFM_ASSERT(usb_isrcmd != CMD_HANDLED);
-    switch (usb_isrcmd) {
-        case CMD_EP0SETUP:
-            this->EP0setupCallback();
-            break;
-        case CMD_EP0IN:
-            this->EP0in();
-            break;
-        case CMD_EP0OUT:
-            this->EP0out();
-            break;
-        case CMD_BUSRESET:
-            this->busReset();
-            break;
-        case CMD_EP_XFER_COMPLETED:
-            if (epCallback[usb_isrcmd_param] && instance) {
-                (instance->*(epCallback[usb_isrcmd_param]))();
-            }
-            break;
-        case CMD_SOF:
-            this->SOF(usb_isrcmd_param);
-            break;
-        case CMD_SUSPEND_STATE_CHANGED:
-            this->suspendStateChanged(usb_isrcmd_param);
-            break;
-        default:
-            EFM_ASSERT(false);
-            break;
-    }
-    usb_isrcmd = CMD_HANDLED;
-}
-#endif
-
-// End of file