- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC r294235:

Make PPS ASSERT/CLEAR events match the RS-232 signal levels as per RFC 2783.
Previously the polarity was for TTL levels, which are the reverse of RS-232.

Also add handling of the UART_PPS_INVERT_PULSE option bit in the sysctl
value, the same as was recently added to uart(4), so that people using TTL
level connections can request a logical inverting of the signal.

Use the named constants from the new dev/uart/uart_ppstypes.h for the pps
capture modes and option bits.

MFC r279728, r279729, r279756, r279773, r282424, r281367:

Add mutex support to the pps_ioctl() API in the kernel.

Add PPS support to USB serial drivers.

Use correct mode variable for PPS support.

Switch polarity of USB serial PPS events.

The ftdi "get latency" and "get bitmode" device commands are read
operations, not writes.

Implement a mechanism for making changes in the kernel<->driver PPS
interface without breaking ABI or API compatibility with existing drivers.

Bump version number to indicate the new PPS ABI version changes in the
pps_state structure.

MFC r268078 and r268080:
Fix for memory use after free() and mtx_destroy().

MFC r263289: Update NetBSD Foundation copyrights to 2-clause BSD

The NetBSD Foundation states "Third parties are encouraged to change the
license on any files which have a 4-clause license contributed to the
NetBSD Foundation to a 2-clause license."

This change removes clauses 3 and 4 from copyright / license blocks that
list The NetBSD Foundation as the only copyright holder.

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

Fix several typos

PR: kern/176054
Submitted by: Christoph Mallon <christoph.mallon@gmx.de>
MFC after: 3 days

Make sure we block recursion on TTY's inwakeup callback

Suggested by: davide
MFC after: 1 week

Add lock asserts instead of "auto-locking".

MFC after: 1 weeks
Suggested by: ed @

The tty_inwakeup callback appears to be called both locked and unlocked.
Handle the required locking automatically for now.

MFC after: 1 weeks

Patch to improve USB serial console.

MFC after: 1 weeks
Submitted by: Bruce Evans

Add a jitter buffer in the common USB serial driver code which
temporarily stores characters if the TTY buffer is full when
used a as a console. This can happen when a console is suspended.
Also properly do the flow stop signalling when this happens and
flow start when the condition changes back to normal again.

Bump __FreeBSD_version to force external kernel modules
to be recompiled. No kernel API changes.

MFC after: 1 week
Suggested by: ed @

Add missing CTLFLAG_TUN flag to tunable sysctls in USB stack.
Rearrange the tunables and belonging sysctl declarations, so
that they are next to eachother.

Submitted by: n_hibma @
MFC after: 1 week

Revert r239178 and implement two new functions, namely
"device_free_softc()" and "device_claim_softc()",
to allow USB serial drivers refcounting the softc.
These functions are used to grab the softc from
auto-free and to free the softc back to the correct
malloc type, respectivly.

Discussed with: jhb
MFC after: 2 weeks

Switch unit management in UCOM to unrhdr.

Extend the callback table of UCOM to include a
"ucom_free" function pointer which is called when
all refs on a UCOM super structure is gone.

Implement various helper functions to handle
refcounting and draining on the UCOM super
structure.

Implement macro which can be used in device
drivers to avoid module unload before all
pending TTY references are gone.

The UCOM API is backwards compatible after this
change and device drivers require no changes
to function with this change. Only a recompilation
of UCOM device drivers is required. The FreeBSD
version has been bumped in that regard.

Discussed with: kib, ed
MFC after: 2 weeks

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

MFC after: 1 weeks

Export ttyname instead of ttyunit via the sysctl interface.

Submitted by: Mykhaylo Yehorov
PR: usb/164090
MFC after: 1 week

Export information about USB serial port unit and port numbers
directly via the sysctl interface.

Submitted by: Mykhaylo Yehorov
PR: usb/164090
MFC after: 1 week

kern cons: introduce infrastructure for console grabbing by kernel

At the moment grab and ungrab methods of all console drivers are no-ops.

Current intended meaning of the calls is that the kernel takes control of
console input. In the future the semantics may be extended to mean that
the calling thread takes full ownership of the console (e.g. console
output from other threads could be suspended).

Inspired by: bde
MFC after: 2 months

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.

Bugfix: The ucom detach function is sometimes called on zeroed structures.
Check for this case and just return, so that the UCOM unit number zero is
not accidentially freed.

Submitted by: Danish FreeBSD user at EuroBSDcon 2011
MFC after: 3 days

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

Reviewed by: bde

Bugfix: Set the bit that marks a device number in use.
This would cause a panic when disconnecting the second serial device.

Submitted by: Lucius Windschuh

Implement ucom_set_pnpinfo_usb() providing ttyname and port number
information through devd. My E220 now produces the notification (1 line):

+u3g0 at bus=1 hubaddr=1 port=0 devaddr=2 interface=0 \
vendor=0x12d1 product=0x1003 devclass=0x00 devsubclass=0x00 \
sernum="" release=0x0000 intclass=0xff intsubclass=0xff \
ttyname=U0 ttyports=2 on uhub0

Note: serial/ufoma and net/uhso still provide port number and tty name
(uhso only) information through sysctls, which should now be removed.

Reviewed by: hpselasky

- Remove an unused entry from the softc (only used in a debugging printf).
- Fix the loop count on detach (causing a panic on detaching a serial
dongle).
- Increase a buffer in case some driver want extra long tty device names
(postfixing the purpose of the tty for example, e.g. u3g.ppp).

- Simplify the way unit/subunit allocation is done in ucom.
- hw.usb.ucom.cons_unit is now split into
hw.usb.ucom.cons_unit/...cons_subunit.

Note: The tunable/sysctl hw.usb.ucom.cons_unit needs to be reviewed if

a) a console was defined a USB serial devices, and a USB device with
more than 1 subunit is present, and this device is attached before the
device functioning as a console

or

b) a console was defined on a USB device with more than 1 subunit

Reviewed by: hps
MFC after: 2 weeks

Fix forwarding of Line Register Status changes to TTY layer.

PR: usb/149675
Approved by: thompsa (mentor)

Change USB_DEBUG to #ifdef and allow it to be turned off. Previously this had
the illusion of a tunable setting but was always turned on regardless.

MFC after: 1 week

Check unit number and provide string name for consdev.

Submitted by: HPS

Add experimental support for usb serial console and polled mode during DDB.

Submitted by: Hans Petter Selasky

Purge mergeinfo from files that were temporarily renamed while USB2 was
imported into the tree alongside USB.

Approved by: re (mergeinfo blanket)

Don't pick up Giant inside ucom(4).

Giant was only used here to lock down a bit mask of allocated unit
numbers. Change the code to use its own mutex.

Reviewed by: hselasky
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.

Remove usb2_cv_* and just use the kernel condvar implementation, it was needed
earlier since condition variables didnt work with Giant but this was fixed 10
months ago.

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

Last minute TTY API change: remove mutex argument from tty_alloc().

I don't want people to override the mutex when allocating a TTY. It has
to be there, to keep drivers like syscons happy. So I'm creating a
tty_alloc_mutex() which can be used in those cases. tty_alloc_mutex()
should eventually be removed.

The advantage of this approach, is that we can just remove a function,
without breaking the regular API in the future.

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

Do not forcefully close the write transfer when closing the tty, it needs to
run to completion and drain the tty queue.

Rename the usb sysctl tree from hw.usb2.* back to hw.usb.*.

Submitted by: Hans Petter Selasky

Remove pointeless mergeinfo that crept in from r190633.

MFp4 //depot/projects/usb@160052

Wait until line configuration is complete before starting data transfers.

Submitted by: Hans Petter Selasky

Implement an ipfw action to reassemble ip packets: reass.

Integrate user/mav/ata branch:

Add ch_suspend/ch_resume methods for PCI controllers and implement them
for AHCI. Refactor AHCI channel initialization according to it.

Fix Port Multipliers operation. It is far from perfect yet, but works now.
Tested with JMicron JMB363 AHCI + SiI 3726 PMP pair.
Previous version was also tested with SiI 4726 PMP.

Hardware sponsored by: Vitsch Electronics / VEHosting.nl

Move the new USB stack into its new home.

MFp4 //depot/projects/usb; 157069, 157136, 157143, 157145, 157429

- USB serial drivers cleanup, factor out code
- Simplify line state programming
- Integrate uslcom from old USB stack

Submitted by: Hans Petter Selasky

MFp4: //depot/projects/usb@155917

Remove dependancy towards the USB config thread in
the USB serial core. Use USB process msignalling
instead. Saves a little memory and hopefully makes
the code more understandable.

Submitted by: Hans Petter Selasky

Make ufoma2 driver work.
1.Sync TD on close to ensure USB request in close callback issued.
2.Add sysctls to indicate device role.
3.Enable handsfree port support.

Now modem port and obex port works well.
Handsfree port works but not with good response.

Remove superfluous return statements from the end of void functions.

Format and wrap function declarations.

Bring in http://perforce.freebsd.org/chv.cgi?CH=152584 from hps.

Submitted by: hps

Bring in USB4BSD, Hans Petter Selasky rework of the USB stack
that includes significant features and SMP safety.

This commit includes a more or less complete rewrite of the *BSD USB
stack, including Host Controller and Device Controller drivers and
updating all existing USB drivers to use the new USB API:

1) A brief feature list:

- A new and mutex enabled USB API.

- Many USB drivers are now running Giant free.

- Linux USB kernel compatibility layer.

- New UGEN backend and libusb library, finally solves the "driver
unloading" problem. The new BSD licensed libusb20 library is fully
compatible with libusb-0.1.12 from sourceforge.

- New "usbconfig" utility, for easy configuration of USB.

- Full support for Split transactions, which means you can use your
full speed USB audio device on a high speed USB HUB.

- Full support for HS ISOC transactions, which makes writing drivers
for various HS webcams possible, for example.

- Full support for USB on embedded platforms, mostly cache flushing
and buffer invalidating stuff.

- Safer parsing of USB descriptors.

- Autodetect of annoying USB install disks.

- Support for USB device side mode, also called USB gadget mode,
using the same API like the USB host side. In other words the new
USB stack is symmetric with regard to host and device side.

- Support for USB transfers like I/O vectors, means more throughput
and less interrupts.

- ... see the FreeBSD quarterly status reports under "USB project"

2) To enable the driver in the default kernel build:

2.a) Remove all existing USB device options from your kernel config
file.

2.b) Add the following USB device options to your kernel configuration
file:

# USB core support
device usb2_core

# USB controller support
device usb2_controller
device usb2_controller_ehci
device usb2_controller_ohci
device usb2_controller_uhci

# USB mass storage support
device usb2_storage
device usb2_storage_mass

# USB ethernet support, requires miibus
device usb2_ethernet
device usb2_ethernet_aue
device usb2_ethernet_axe
device usb2_ethernet_cdce
device usb2_ethernet_cue
device usb2_ethernet_kue
device usb2_ethernet_rue
device usb2_ethernet_dav

# USB wireless LAN support
device usb2_wlan
device usb2_wlan_rum
device usb2_wlan_ral
device usb2_wlan_zyd

# USB serial device support
device usb2_serial
device usb2_serial_ark
device usb2_serial_bsa
device usb2_serial_bser
device usb2_serial_chcom
device usb2_serial_cycom
device usb2_serial_foma
device usb2_serial_ftdi
device usb2_serial_gensa
device usb2_serial_ipaq
device usb2_serial_lpt
device usb2_serial_mct
device usb2_serial_modem
device usb2_serial_moscom
device usb2_serial_plcom
device usb2_serial_visor
device usb2_serial_vscom

# USB bluetooth support
device usb2_bluetooth
device usb2_bluetooth_ng

# USB input device support
device usb2_input
device usb2_input_hid
device usb2_input_kbd
device usb2_input_ms

# USB sound and MIDI device support
device usb2_sound

2) To enable the driver at runtime:

2.a) Unload all existing USB modules. If USB is compiled into the
kernel then you might have to build a new kernel.

2.b) Load the "usb2_xxx.ko" modules under /boot/kernel having the same
base name like the kernel device option.

Submitted by: Hans Petter Selasky hselasky at c2i dot net
Reviewed by: imp, alfred