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

     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * Copyright (c) 1990, 1991, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * This code is derived from the Stanford/CMU enet packet filter,
      * (net/enet.c) distributed as part of 4.3BSD, and code contributed
      * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence
     * Berkeley Laboratory.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _DEV_USB_PF_H
    #define _DEV_USB_PF_H
    
    struct usbpf_pkthdr {
            uint32_t        up_totlen;      /* Total length including all headers */
            uint32_t        up_busunit;     /* Host controller unit number */
            uint8_t         up_address;     /* USB device index */
            uint8_t         up_mode;        /* Mode of transfer */
    #define USBPF_MODE_HOST         0
    #define USBPF_MODE_DEVICE       1
            uint8_t         up_type;        /* points SUBMIT / DONE */
            uint8_t         up_xfertype;    /* Transfer type, see USB2.0 spec. */
            uint32_t        up_flags;       /* Transfer flags */
    #define USBPF_FLAG_FORCE_SHORT_XFER     (1 << 0)
    #define USBPF_FLAG_SHORT_XFER_OK        (1 << 1)
    #define USBPF_FLAG_SHORT_FRAMES_OK      (1 << 2)
    #define USBPF_FLAG_PIPE_BOF             (1 << 3)
    #define USBPF_FLAG_PROXY_BUFFER         (1 << 4)
    #define USBPF_FLAG_EXT_BUFFER           (1 << 5)
    #define USBPF_FLAG_MANUAL_STATUS        (1 << 6)
    #define USBPF_FLAG_NO_PIPE_OK           (1 << 7)
    #define USBPF_FLAG_STALL_PIPE           (1 << 8)
            uint32_t        up_status;      /* Transfer status */
    #define USBPF_STATUS_OPEN               (1 << 0)
    #define USBPF_STATUS_TRANSFERRING       (1 << 1)
    #define USBPF_STATUS_DID_DMA_DELAY      (1 << 2)
    #define USBPF_STATUS_DID_CLOSE          (1 << 3)
    #define USBPF_STATUS_DRAINING           (1 << 4)
    #define USBPF_STATUS_STARTED            (1 << 5)
    #define USBPF_STATUS_BW_RECLAIMED       (1 << 6)
    #define USBPF_STATUS_CONTROL_XFR        (1 << 7)
    #define USBPF_STATUS_CONTROL_HDR        (1 << 8)
    #define USBPF_STATUS_CONTROL_ACT        (1 << 9)
    #define USBPF_STATUS_CONTROL_STALL      (1 << 10)
    #define USBPF_STATUS_SHORT_FRAMES_OK    (1 << 11)
    #define USBPF_STATUS_SHORT_XFER_OK      (1 << 12)
    #define USBPF_STATUS_BDMA_ENABLE        (1 << 13)
    #define USBPF_STATUS_BDMA_NO_POST_SYNC  (1 << 14)
    #define USBPF_STATUS_BDMA_SETUP         (1 << 15)
    #define USBPF_STATUS_ISOCHRONOUS_XFR    (1 << 16)
    #define USBPF_STATUS_CURR_DMA_SET       (1 << 17)
    #define USBPF_STATUS_CAN_CANCEL_IMMED   (1 << 18)
    #define USBPF_STATUS_DOING_CALLBACK     (1 << 19)
            uint32_t        up_error;       /* USB error, see USB_ERR_XXX */
            uint32_t        up_interval;    /* For interrupt and isoc (ms) */
            uint32_t        up_frames;      /* Number of following frames */
            uint32_t        up_packet_size; /* Packet size used */
            uint32_t        up_packet_count;        /* Packet count used */
            uint32_t        up_endpoint;    /* USB endpoint / stream ID */
            uint8_t         up_speed;       /* USB speed, see USB_SPEED_XXX */
            /* sizeof(struct usbpf_pkthdr) == 128 bytes */
            uint8_t         up_reserved[83];
    };
    
    struct usbpf_framehdr {
            /*
             * The frame length field excludes length of frame header and
             * any alignment.
             */
            uint32_t length;
    #define USBPF_FRAME_ALIGN(x)            (((x) + 3) & ~3)
           uint32_t flags;
   #define USBPF_FRAMEFLAG_READ            (1 << 0)
   #define USBPF_FRAMEFLAG_DATA_FOLLOWS    (1 << 1)
   };
   
   #define USBPF_HDR_LEN           128     /* bytes */
   #define USBPF_FRAME_HDR_LEN     8       /* bytes */
   
   extern uint8_t usbpf_pkthdr_size_ok[
       (sizeof(struct usbpf_pkthdr) == USBPF_HDR_LEN) ? 1 : -1];
   extern uint8_t usbpf_framehdr_size_ok[
       (sizeof(struct usbpf_framehdr) == USBPF_FRAME_HDR_LEN) ? 1 : -1];
   
   #define USBPF_XFERTAP_SUBMIT    0
   #define USBPF_XFERTAP_DONE      1
   
   #if defined(_KERNEL) || defined(_STANDALONE)
   void    usbpf_attach(struct usb_bus *);
   void    usbpf_detach(struct usb_bus *);
   void    usbpf_xfertap(struct usb_xfer *, int);
   #endif  /* _KERNEL || _STANDALONE */
   #endif  /* _DEV_USB_PF_H */
   

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