Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Use string literals in string descriptors for marginally
better readability.

Submitted by: Christoph Mallon

Provide one global language string descriptor for
american english instead of giving each module its
own.

Submitted by: Christoph Mallon

Modify the FreeBSD USB kernel code so that it can be compiled directly
into the FreeBSD boot loader, typically for non-USB aware BIOSes, EFI systems
or embedded platforms. This is also useful for out of the system compilation
of the FreeBSD USB stack for various purposes. The USB kernel files can
now optionally include a global header file which should include all needed
definitions required to compile the FreeBSD USB stack. When the global USB
header file is included, no other USB header files will be included by
default.

Add new file containing the USB stack configuration for the
FreeBSD loader build.

Replace some __FBSDID()'s by /* $FreeBSD$ */ comments. Now all
USB files follow the same style.

Use cases:
- console in loader via USB
- loading kernel via USB

Discussed with: Hiroki Sato, hrs @ EuroBSDCon

Inherit USB mode from RootHUB port where the USB device is connected.
Only RootHUB ports can be dual mode. Disallow OTG ports on external HUBs.
This simplifies some checks in the USB controller drivers.

MFC after: 1 week

Add support for the so-called streams feature of BULK endpoints
in SUPER-speed mode, USB 3.0.

This feature has not been tested yet, due to lack of hardware.

This feature is useful when implementing protocols like UASP,
USB attached SCSI which promises higher USB mass storage throughput.

This patch also implements support for hardware processing of endpoints
for increased performance. The switching to hardware processing
of an endpoint is done via a callback to the USB controller driver. The
stream feature is implemented like a variant of a hardware USB protocol.

USB controller drivers implementing device mode needs to be updated to
implement the new "xfer_stall" USB controller method and remove the
"xfer" argument from the "set_stall" method.

The API's toward existing USB drivers are preserved. To setup a USB transfer
in stream mode, set the "stream_id" field of the USB config structure to
the desired value.

The maximum number of BULK streams is currently hardcoded and limited to 8
via a define in usb_freebsd.h.

All USB drivers should be re-compiled after this change.

LibUSB will be updated next week to support streams mode. A new IOCTL to
setup BULK streams as already been implemented. The ugen device nodes
currently only supports stream ID zero.

The FreeBSD version has been bumped.

MFC after: 2 weeks

Fix compiler warnings, mostly signed issues,
when USB modules are compiled with WARNS=9.

MFC after: 1 weeks

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

Style change.
- Make it easier to port the USB code to other platforms by only using
one set of memory functions for clearing and copying memory. None of
the memory copies are overlapping. This means using bcopy() is not
required.
- Fix a compile warning when USB_HAVE_BUSDMA=0
- Add missing semicolon in avr32dci.
- Update some comments.

MFC after: 1 week

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.

Remove unneeded includes of <sys/linker_set.h>. Other headers that use
it internally contain nested includes.

Reviewed by: bde

Correct some root HUB descriptor fields in multiple controller drivers.
Remove an unused structure.

Approved by: thompsa (mentor)

Remove overuse of exclamation marks in kernel printfs, there mere fact a
message has been printed is enough to get someones attention. Also remove the
line number for DPRINTF/DPRINTFN, it already prints the funtion name and a
unique message.

Initialise variable before use.

Submitted by: Hans Petter Selasky

USB CORE:
- Add minimum polling support to drive UMASS
and UKBD in case of panic.
- Add extra check to ukbd probe to fix problem about
mouse devices attaching like keyboards.
- P4 ID: 166148

Submitted by: hps
Approved by: re

Sync to p4

- Add support for devices that handle set and clear stall in hardware.
- Add missing get timestamp function
- Add more xfer flags

Submitted by: Hans Petter Selasky
Approved by: re (kib)

- Make struct usb_xfer opaque so that drivers can not access the internals
- Reduce the number of headers needed for a usb driver, the common case is just usb.h and usbdi.h

s/usb2_/usb_|usbd_/ on all function names for the USB stack.

Rename usb pipes to endpoints as it better represents what they are, and struct
usb_pipe may be used for a different purpose later on.

s/usb2_/usb_/ on all typedefs for the USB stack.

s/usb2_/usb_/ on all C structs for the USB stack.

Add a driver for the AVR32 series USB Device Controller. Not hooked up as
FreeBSD does not yet support this platform but it makes it easier to stay in
sync.

Submitted by: Hans Petter Selasky