freebsd-dev/sys/dev/usb/usb_if.m
Hans Petter Selasky 2e14174893 Implement better support for USB controller suspend and resume.
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
2011-12-14 00:28:54 +00:00

67 lines
2.3 KiB
Objective-C

#-
# Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
#
# 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,
# without modification, immediately at the beginning of the file.
# 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. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
#
# $FreeBSD$
#
# USB interface description
#
#include <sys/bus.h>
INTERFACE usb;
# The device received a control request
#
# The value pointed to by "pstate" can be updated to
# "USB_HR_COMPLETE_OK" to indicate that the control
# read transfer is complete, in case of short USB
# control transfers.
#
# Return values:
# 0: Success
# ENOTTY: Transaction stalled
# Else: Use builtin request handler
#
METHOD int handle_request {
device_t dev;
const void *req; /* pointer to the device request */
void **pptr; /* data pointer */
uint16_t *plen; /* maximum transfer length */
uint16_t offset; /* data offset */
uint8_t *pstate; /* set if transfer is complete, see USB_HR_XXX */
};
# Take controller from BIOS
#
# Return values:
# 0: Success
# Else: Failure
#
METHOD int take_controller {
device_t dev;
};