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_pf.h

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    1 /*-
    2  * Copyright (c) 1990, 1991, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * This code is derived from the Stanford/CMU enet packet filter,
    6  * (net/enet.c) distributed as part of 4.3BSD, and code contributed
    7  * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
    8  * Berkeley Laboratory.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 4. Neither the name of the University nor the names of its contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  * $FreeBSD: releng/11.2/sys/dev/usb/usb_pf.h 331722 2018-03-29 02:50:57Z eadler $
   35  */
   36 
   37 #ifndef _DEV_USB_PF_H
   38 #define _DEV_USB_PF_H
   39 
   40 struct usbpf_pkthdr {
   41         uint32_t        up_totlen;      /* Total length including all headers */
   42         uint32_t        up_busunit;     /* Host controller unit number */
   43         uint8_t         up_address;     /* USB device index */
   44         uint8_t         up_mode;        /* Mode of transfer */
   45 #define USBPF_MODE_HOST         0
   46 #define USBPF_MODE_DEVICE       1
   47         uint8_t         up_type;        /* points SUBMIT / DONE */
   48         uint8_t         up_xfertype;    /* Transfer type, see USB2.0 spec. */
   49         uint32_t        up_flags;       /* Transfer flags */
   50 #define USBPF_FLAG_FORCE_SHORT_XFER     (1 << 0)
   51 #define USBPF_FLAG_SHORT_XFER_OK        (1 << 1)
   52 #define USBPF_FLAG_SHORT_FRAMES_OK      (1 << 2)
   53 #define USBPF_FLAG_PIPE_BOF             (1 << 3)
   54 #define USBPF_FLAG_PROXY_BUFFER         (1 << 4)
   55 #define USBPF_FLAG_EXT_BUFFER           (1 << 5)
   56 #define USBPF_FLAG_MANUAL_STATUS        (1 << 6)
   57 #define USBPF_FLAG_NO_PIPE_OK           (1 << 7)
   58 #define USBPF_FLAG_STALL_PIPE           (1 << 8)
   59         uint32_t        up_status;      /* Transfer status */
   60 #define USBPF_STATUS_OPEN               (1 << 0)
   61 #define USBPF_STATUS_TRANSFERRING       (1 << 1)
   62 #define USBPF_STATUS_DID_DMA_DELAY      (1 << 2)
   63 #define USBPF_STATUS_DID_CLOSE          (1 << 3)
   64 #define USBPF_STATUS_DRAINING           (1 << 4)
   65 #define USBPF_STATUS_STARTED            (1 << 5)
   66 #define USBPF_STATUS_BW_RECLAIMED       (1 << 6)
   67 #define USBPF_STATUS_CONTROL_XFR        (1 << 7)
   68 #define USBPF_STATUS_CONTROL_HDR        (1 << 8)
   69 #define USBPF_STATUS_CONTROL_ACT        (1 << 9)
   70 #define USBPF_STATUS_CONTROL_STALL      (1 << 10)
   71 #define USBPF_STATUS_SHORT_FRAMES_OK    (1 << 11)
   72 #define USBPF_STATUS_SHORT_XFER_OK      (1 << 12)
   73 #define USBPF_STATUS_BDMA_ENABLE        (1 << 13)
   74 #define USBPF_STATUS_BDMA_NO_POST_SYNC  (1 << 14)
   75 #define USBPF_STATUS_BDMA_SETUP         (1 << 15)
   76 #define USBPF_STATUS_ISOCHRONOUS_XFR    (1 << 16)
   77 #define USBPF_STATUS_CURR_DMA_SET       (1 << 17)
   78 #define USBPF_STATUS_CAN_CANCEL_IMMED   (1 << 18)
   79 #define USBPF_STATUS_DOING_CALLBACK     (1 << 19)
   80         uint32_t        up_error;       /* USB error, see USB_ERR_XXX */
   81         uint32_t        up_interval;    /* For interrupt and isoc (ms) */
   82         uint32_t        up_frames;      /* Number of following frames */
   83         uint32_t        up_packet_size; /* Packet size used */
   84         uint32_t        up_packet_count;        /* Packet count used */
   85         uint32_t        up_endpoint;    /* USB endpoint / stream ID */
   86         uint8_t         up_speed;       /* USB speed, see USB_SPEED_XXX */
   87         /* sizeof(struct usbpf_pkthdr) == 128 bytes */
   88         uint8_t         up_reserved[83];
   89 };
   90 
   91 struct usbpf_framehdr {
   92         /*
   93          * The frame length field excludes length of frame header and
   94          * any alignment.
   95          */
   96         uint32_t length;
   97 #define USBPF_FRAME_ALIGN(x)            (((x) + 3) & ~3)
   98         uint32_t flags;
   99 #define USBPF_FRAMEFLAG_READ            (1 << 0)
  100 #define USBPF_FRAMEFLAG_DATA_FOLLOWS    (1 << 1)
  101 };
  102 
  103 #define USBPF_HDR_LEN           128     /* bytes */
  104 #define USBPF_FRAME_HDR_LEN     8       /* bytes */
  105 
  106 extern uint8_t usbpf_pkthdr_size_ok[
  107     (sizeof(struct usbpf_pkthdr) == USBPF_HDR_LEN) ? 1 : -1];
  108 extern uint8_t usbpf_framehdr_size_ok[
  109     (sizeof(struct usbpf_framehdr) == USBPF_FRAME_HDR_LEN) ? 1 : -1];
  110 
  111 #define USBPF_XFERTAP_SUBMIT    0
  112 #define USBPF_XFERTAP_DONE      1
  113 
  114 #ifdef _KERNEL
  115 void    usbpf_attach(struct usb_bus *);
  116 void    usbpf_detach(struct usb_bus *);
  117 void    usbpf_xfertap(struct usb_xfer *, int);
  118 #endif
  119 
  120 #endif

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