3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
31 * The following structure defines the USB explore message sent to the USB
36 struct usb_proc_msg hdr;
41 * The following structure defines the USB statistics structure.
44 uint32_t uds_requests[4];
48 * The following structure defines an USB BUS. There is one USB BUS
49 * for every Host or Device controller.
52 struct usb_bus_stat stats_err;
53 struct usb_bus_stat stats_ok;
54 #if USB_HAVE_ROOT_MOUNT_HOLD
55 struct root_hold_token *bus_roothold;
58 #if USB_HAVE_PER_BUS_PROCESS
59 #define USB_BUS_GIANT_PROC(bus) (&(bus)->giant_callback_proc)
60 #define USB_BUS_NON_GIANT_PROC(bus) (&(bus)->non_giant_callback_proc)
61 #define USB_BUS_EXPLORE_PROC(bus) (&(bus)->explore_proc)
62 #define USB_BUS_CONTROL_XFER_PROC(bus) (&(bus)->control_xfer_proc)
65 * There are two callback processes. One for Giant locked
66 * callbacks. One for non-Giant locked callbacks. This should
67 * avoid congestion and reduce response time in most cases.
69 struct usb_process giant_callback_proc;
70 struct usb_process non_giant_callback_proc;
73 struct usb_process explore_proc;
75 /* Control request process */
76 struct usb_process control_xfer_proc;
79 struct usb_bus_msg explore_msg[2];
80 struct usb_bus_msg detach_msg[2];
81 struct usb_bus_msg attach_msg[2];
82 struct usb_bus_msg suspend_msg[2];
83 struct usb_bus_msg resume_msg[2];
84 struct usb_bus_msg reset_msg[2];
85 struct usb_bus_msg shutdown_msg[2];
87 * This mutex protects the USB hardware:
90 struct usb_xfer_queue intr_q;
91 struct usb_callout power_wdog; /* power management */
94 device_t bdev; /* filled by HC driver */
97 struct usb_dma_parent_tag dma_parent_tag[1];
98 struct usb_dma_tag dma_tags[USB_BUS_DMA_TAG_MAX];
100 const struct usb_bus_methods *methods; /* filled by HC driver */
101 struct usb_device **devices;
103 struct ifnet *ifp; /* only for USB Packet Filter */
105 usb_power_mask_t hw_power_state; /* see USB_HW_POWER_XXX */
106 usb_size_t uframe_usage[USB_HS_MICRO_FRAMES_MAX];
108 uint16_t isoc_time_last; /* in milliseconds */
110 uint8_t alloc_failed; /* Set if memory allocation failed. */
111 uint8_t driver_added_refcount; /* Current driver generation count */
112 enum usb_revision usbrev; /* USB revision. See "USB_REV_XXX". */
114 uint8_t devices_max; /* maximum number of USB devices */
116 uint8_t do_probe; /* set if USB should be re-probed */
117 uint8_t no_explore; /* don't explore USB ports */
120 #endif /* _USB_BUS_H_ */