2e14174893
This patch should remove the need for kldunload of USB controller drivers at suspend and kldload of USB controller drivers at resume. This patch also fixes some build issues in avr32dci.c MFC after: 2 weeks
119 lines
3.8 KiB
C
119 lines
3.8 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _USB_BUS_H_
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#define _USB_BUS_H_
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/*
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* The following structure defines the USB explore message sent to the USB
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* explore process.
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*/
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struct usb_bus_msg {
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struct usb_proc_msg hdr;
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struct usb_bus *bus;
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};
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/*
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* The following structure defines the USB statistics structure.
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*/
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struct usb_bus_stat {
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uint32_t uds_requests[4];
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};
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/*
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* The following structure defines an USB BUS. There is one USB BUS
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* for every Host or Device controller.
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*/
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struct usb_bus {
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struct usb_bus_stat stats_err;
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struct usb_bus_stat stats_ok;
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struct root_hold_token *bus_roothold;
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/*
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* There are two callback processes. One for Giant locked
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* callbacks. One for non-Giant locked callbacks. This should
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* avoid congestion and reduce response time in most cases.
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*/
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struct usb_process giant_callback_proc;
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struct usb_process non_giant_callback_proc;
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/* Explore process */
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struct usb_process explore_proc;
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/* Control request process */
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struct usb_process control_xfer_proc;
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struct usb_bus_msg explore_msg[2];
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struct usb_bus_msg detach_msg[2];
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struct usb_bus_msg attach_msg[2];
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struct usb_bus_msg suspend_msg[2];
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struct usb_bus_msg resume_msg[2];
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struct usb_bus_msg shutdown_msg[2];
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/*
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* This mutex protects the USB hardware:
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*/
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struct mtx bus_mtx;
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struct usb_xfer_queue intr_q;
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struct usb_callout power_wdog; /* power management */
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device_t parent;
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device_t bdev; /* filled by HC driver */
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#if USB_HAVE_BUSDMA
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struct usb_dma_parent_tag dma_parent_tag[1];
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struct usb_dma_tag dma_tags[USB_BUS_DMA_TAG_MAX];
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#endif
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struct usb_bus_methods *methods; /* filled by HC driver */
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struct usb_device **devices;
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struct ifnet *ifp; /* only for USB Packet Filter */
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usb_power_mask_t hw_power_state; /* see USB_HW_POWER_XXX */
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usb_size_t uframe_usage[USB_HS_MICRO_FRAMES_MAX];
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uint16_t isoc_time_last; /* in milliseconds */
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uint8_t alloc_failed; /* Set if memory allocation failed. */
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uint8_t driver_added_refcount; /* Current driver generation count */
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enum usb_revision usbrev; /* USB revision. See "USB_REV_XXX". */
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uint8_t devices_max; /* maximum number of USB devices */
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uint8_t do_probe; /* set if USB should be re-probed */
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uint8_t no_explore; /* don't explore USB ports */
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/*
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* The scratch area can only be used inside the explore thread
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* belonging to the give serial bus.
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*/
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union {
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struct usb_hw_ep_scratch hw_ep_scratch[1];
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struct usb_temp_setup temp_setup[1];
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uint8_t data[255];
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} scratch[1];
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};
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#endif /* _USB_BUS_H_ */
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