The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/usb_ethersubr.h

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    1 /*-
    2  * Copyright (c) 1997, 1998, 1999, 2000
    3  *      Bill Paul <wpaul@ee.columbia.edu>.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 3. All advertising materials mentioning features or use of this software
   14  *    must display the following acknowledgement:
   15  *      This product includes software developed by Bill Paul.
   16  * 4. Neither the name of the author nor the names of any co-contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGE.
   31  *
   32  * $FreeBSD: releng/7.3/sys/dev/usb/usb_ethersubr.h 165901 2007-01-08 23:21:06Z alfred $
   33  */
   34 
   35 #ifndef _USB_ETHERSUBR_H_
   36 #define _USB_ETHERSUBR_H_
   37 
   38 #include <sys/bus.h>
   39 #include <sys/module.h>
   40 
   41 #include <dev/usb/usbdi.h>
   42 
   43 #define UE_TX_LIST_CNT          1
   44 #define UE_RX_LIST_CNT          1
   45 #define UE_BUFSZ                1536
   46 
   47 struct usb_qdat {
   48         struct ifnet            *ifp;
   49         void (*if_rxstart)      (struct ifnet *);
   50 };
   51 
   52 struct ue_chain {
   53         void                    *ue_sc;
   54         usbd_xfer_handle        ue_xfer;
   55         char                    *ue_buf;
   56         struct mbuf             *ue_mbuf;
   57         int                     ue_idx;
   58         usbd_status             ue_status;
   59 };
   60 
   61 struct ue_cdata {
   62         struct ue_chain         ue_tx_chain[UE_TX_LIST_CNT];
   63         struct ue_chain         ue_rx_chain[UE_RX_LIST_CNT];
   64         void                    *ue_ibuf;
   65         int                     ue_tx_prod;
   66         int                     ue_tx_cons;
   67         int                     ue_tx_cnt;
   68         int                     ue_rx_prod;
   69 };
   70 
   71 void usb_register_netisr        (void);
   72 void usb_ether_input            (struct mbuf *);
   73 void usb_tx_done                (struct mbuf *);
   74 struct mbuf *usb_ether_newbuf   (void);
   75 int usb_ether_rx_list_init      (void *, struct ue_cdata *,
   76     usbd_device_handle);
   77 int usb_ether_tx_list_init      (void *, struct ue_cdata *,
   78     usbd_device_handle);
   79 void usb_ether_rx_list_free     (struct ue_cdata *);
   80 void usb_ether_tx_list_free     (struct ue_cdata *);
   81 
   82 struct usb_taskqueue {
   83         int dummy;
   84 };
   85 
   86 void usb_ether_task_init(device_t, int, struct usb_taskqueue *);
   87 void usb_ether_task_enqueue(struct usb_taskqueue *, struct task *);
   88 void usb_ether_task_drain(struct usb_taskqueue *, struct task *);
   89 void usb_ether_task_destroy(struct usb_taskqueue *);
   90 
   91 #endif /* _USB_ETHERSUBR_H_ */

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