0efd4d0e12
The class device only handles descriptor information specific to the class, and shared descriptor information is passed through parameters and handled by the composite driver. Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
/****************************************************************************
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* drivers/usbdev/composite.h
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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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#ifndef __DRIVERS_USBDEV_COMPOSITE_H
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#define __DRIVERS_USBDEV_COMPOSITE_H
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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 <sys/param.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <nuttx/usb/usb.h>
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#include <nuttx/usb/usbdev.h>
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#include <nuttx/usb/usbdev_trace.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifdef CONFIG_USBDEV_COMPOSITE
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# define NUM_DEVICES_TO_HANDLE (CONFIG_COMPOSITE_DEVICES)
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#else
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# define NUM_DEVICES_TO_HANDLE (1)
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#endif
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/* These settings are not modifiable via the NuttX configuration */
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#define COMPOSITE_CONFIGIDNONE (0) /* Config ID = 0 means to return to address mode */
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#define COMPOSITE_CONFIGID (1) /* The only supported configuration ID */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct composite_devobj_s
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{
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/* Device description given by the user code in the dynamic
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* configuration.
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*/
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struct composite_devdesc_s compdesc;
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/* Pointer to device class */
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FAR struct usbdevclass_driver_s *dev;
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};
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/* This structure describes the internal state of the driver */
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struct composite_dev_s
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{
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FAR struct usbdev_s *usbdev; /* usbdev driver pointer */
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FAR struct usbdev_req_s *ctrlreq; /* Allocated control request */
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int cfgdescsize; /* Total size of the configuration descriptor */
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int ninterfaces; /* The total number of interfaces in this composite device */
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uint8_t config; /* Configuration number */
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uint8_t ndevices; /* Num devices in this composite device */
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struct composite_devobj_s device[NUM_DEVICES_TO_HANDLE]; /* Device class object */
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FAR const struct usbdev_devdescs_s *descs; /* Device descriptors */
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};
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#endif /* __DRIVERS_USBDEV_COMPOSITE_H */
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