73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
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/****************************************************************************
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* drivers/usbdev/usbdev_desc.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include <nuttx/usb/usbdev.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: usbdev_copy_epdesc
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*
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* Description:
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* Copies the requested Endpoint Description into the buffer given.
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* Returns the number of Bytes filled in ( sizeof(struct usb_epdesc_s) ).
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* This function is provided by various classes.
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*
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****************************************************************************/
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void usbdev_copy_epdesc(FAR struct usb_epdesc_s *epdesc,
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uint8_t epno, bool hispeed,
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FAR const struct usbdev_epinfo_s *epinfo)
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{
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#ifndef CONFIG_USBDEV_DUALSPEED
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UNUSED(hispeed);
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#endif
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memcpy(epdesc, &epinfo->desc, sizeof(struct usb_epdesc_s));
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epdesc->addr |= epno;
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#ifdef CONFIG_USBDEV_DUALSPEED
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if (hispeed)
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{
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/* Maximum packet size (high speed) */
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epdesc->mxpacketsize[0] = LSBYTE(epinfo->hssize);
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epdesc->mxpacketsize[1] = MSBYTE(epinfo->hssize);
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}
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else
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#endif
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{
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/* Maximum packet size (full speed) */
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epdesc->mxpacketsize[0] = LSBYTE(epinfo->fssize);
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epdesc->mxpacketsize[1] = MSBYTE(epinfo->fssize);
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}
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}
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