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
32 * USB explore process.
36 struct usb2_proc_msg hdr;
41 * The following structure defines the USB statistics structure.
43 struct usb2_bus_stat {
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 usb2_bus_stat stats_err;
53 struct usb2_bus_stat stats_ok;
54 struct usb2_process explore_proc;
55 struct usb2_process roothub_proc;
56 struct root_hold_token *bus_roothold;
58 * There are two callback processes. One for Giant locked
59 * callbacks. One for non-Giant locked callbacks. This should
60 * avoid congestion and reduce response time in most cases.
62 struct usb2_process giant_callback_proc;
63 struct usb2_process non_giant_callback_proc;
64 struct usb2_bus_msg explore_msg[2];
65 struct usb2_bus_msg detach_msg[2];
66 struct usb2_bus_msg attach_msg[2];
67 struct usb2_bus_msg roothub_msg[2];
69 * This mutex protects the USB hardware:
72 struct usb2_xfer_queue intr_q;
73 struct usb2_callout power_wdog; /* power management */
76 device_t bdev; /* filled by HC driver */
78 struct usb2_dma_parent_tag dma_parent_tag[1];
79 struct usb2_dma_tag dma_tags[USB_BUS_DMA_TAG_MAX];
81 struct usb2_bus_methods *methods; /* filled by HC driver */
82 struct usb2_device **devices;
84 uint32_t hw_power_state; /* see USB_HW_POWER_XXX */
85 uint32_t uframe_usage[USB_HS_MICRO_FRAMES_MAX];
86 uint32_t transfer_count[4];
87 uint16_t isoc_time_last; /* in milliseconds */
89 uint8_t alloc_failed; /* Set if memory allocation failed. */
90 uint8_t driver_added_refcount; /* Current driver generation count */
91 uint8_t usbrev; /* USB revision. See "USB_REV_XXX". */
93 uint8_t devices_max; /* maximum number of USB devices */
94 uint8_t do_probe; /* set if USB BUS should be re-probed */
97 struct usb2_hw_ep_scratch hw_ep_scratch[1];
98 struct usb2_temp_setup temp_setup[1];
103 #endif /* _USB2_BUS_H_ */