sys/bus/u4b/usb_hub.h

   1 /* $FreeBSD: head/sys/dev/usb/usb_hub.h 267240 2014-06-08 20:10:29Z hselasky $ */
   2 /*-
   3  * Copyright (c) 2008 Hans Petter Selasky. 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  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #ifndef _USB_HUB_H_
  28 #define _USB_HUB_H_
  29
  30 /*
  31  * The following structure defines an USB port.
  32  */
  33 struct usb_port {
  34         uint8_t restartcnt;
  35 #define USB_RESTART_MAX 5
  36         uint8_t device_index;           /* zero means not valid */
  37         enum usb_hc_mode usb_mode;      /* host or device mode */
  38 #if USB_HAVE_TT_SUPPORT
  39         struct usb_device_request req_reset_tt __aligned(4);
  40 #endif
  41 };
  42
  43 /*
  44  * The following structure defines an USB HUB.
  45  */
  46 struct usb_hub {
  47         struct usb_device *hubudev;     /* the HUB device */
  48         usb_error_t (*explore) (struct usb_device *hub);
  49         void   *hubsoftc;
  50 #if USB_HAVE_TT_SUPPORT
  51         struct usb_udev_msg tt_msg[2];
  52 #endif
  53         usb_size_t uframe_usage[USB_HS_MICRO_FRAMES_MAX];
  54         uint16_t portpower;             /* mA per USB port */
  55         uint8_t isoc_last_time;
  56         uint8_t nports;
  57 #if (USB_HAVE_FIXED_PORT == 0)
  58         struct usb_port ports[0];
  59 #else
  60         struct usb_port ports[USB_MAX_PORTS];
  61 #endif
  62 };
  63
  64 /* function prototypes */
  65
  66 void    usb_hs_bandwidth_alloc(struct usb_xfer *xfer);
  67 void    usb_hs_bandwidth_free(struct usb_xfer *xfer);
  68 void    usb_bus_port_set_device(struct usb_bus *bus, struct usb_port *up,
  69             struct usb_device *udev, uint8_t device_index);
  70 struct usb_device *usb_bus_port_get_device(struct usb_bus *bus,
  71             struct usb_port *up);
  72 void    usb_needs_explore(struct usb_bus *bus, uint8_t do_probe);
  73 void    usb_needs_explore_all(void);
  74 void    usb_bus_power_update(struct usb_bus *bus);
  75 void    usb_bus_powerd(struct usb_bus *bus);
  76 void    uhub_root_intr(struct usb_bus *, const uint8_t *, uint8_t);
  77 usb_error_t uhub_query_info(struct usb_device *, uint8_t *, uint8_t *);
  78 void    uhub_explore_handle_re_enumerate(struct usb_device *);
  79
  80 #endif                                  /* _USB_HUB_H_ */