This is very useful for low level link testing where
we might not have a USB Host stack, only a scope to
verify signal integrity.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Most link changes will, of course, happen with
the help of a matching host HW, but in some cases
we might want to debug very low level details about
the link and exposing this to debugfs sounds like
a good plan.

This is a preparation for such setup.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This is very useful for low level Link Testing where
we might not have a USB Host stack, only a scope to
verify signal integrity.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

There are some situations were we might need to
enable USB Test Modes without having access to a
Host stack. In such situations we cannot rely
solely on USB Control Messages to enable test
features.

For those cases, we will also allow test mode
to be enabled via debugfs and this patch is a
preparation for that.
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Fix UWB/WUSB kconfig error by changing 'select' to 'depends on'.

drivers/usb/wusbcore/Kconfig:4:error: recursive dependency detected!
drivers/usb/wusbcore/Kconfig:4:	symbol USB_WUSB is selected by USB_HWA_HCD
drivers/usb/host/Kconfig:559:	symbol USB_HWA_HCD depends on UWB
drivers/uwb/Kconfig:5:	symbol UWB is selected by USB_WUSB
Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=784345Reported-by: NFrancis Moreau <francis.moro@gmail.com>
Reported-and-tested-by: NChristian D <chrisudeussen@gmail.com>
Reported-and-tested-by: NJimmy Dorff <jdorff@phy.duke.edu>
Reported-and-tested-by: collura@ieee.org
Cc: stable@vger.kernel.org # 3.2+
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

0x04d8, 0x000a: Hornby Elite
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

When a TD length mismatch is found during isoc TRB enqueue, it directly
returns -EINVAL. However, isoc transfer is partially enqueued at this time,
and the ring should be cleared.

This should be backported to kernels as old as 2.6.36, which contain the
commit 522989a2 "xhci: Fix failed
enqueue in the middle of isoch TD."
Signed-off-by: NAndiry Xu <andiry.xu@amd.com>
Signed-off-by: NSarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org

1/ remove incorrect comment (it is a non-blocking notifier)
2/ Use correct symbolic return value for notifier
3/ Make sure otg_notifier_work is cancelled before module exit.
Signed-off-by: NNeilBrown <neilb@suse.de>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

More ports we now know how to talk to.
Signed-off-by: NDan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This reverts commit 0dd2b62a.

It causes a bunch of Kconfig errors:

drivers/usb/host/Kconfig:559:error: recursive dependency detected!
drivers/usb/host/Kconfig:559:	symbol USB_HWA_HCD depends on UWB
drivers/uwb/Kconfig:5:	symbol UWB is selected by USB_WUSB
drivers/usb/wusbcore/Kconfig:4:	symbol USB_WUSB is selected by USB_HWA_HCD

showing that this really wasn't the correct fix at all.

Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

ERROR: "usb_remove_hcd" [drivers/usb/otg/mv_otg.ko] undefined!
ERROR: "usb_add_hcd" [drivers/usb/otg/mv_otg.ko] undefined!
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
--
Inpired by drivers/usb/otg/msm_otg.c. Is this correct?

 drivers/usb/otg/mv_otg.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The probe does not strictly require the USB_CDC_DMM_TYPE
descriptor, which is a good thing as it makes the driver
usable on non-conforming interfaces.  A user could e.g.
bind to it to a CDC ECM interface by using the new_id and
bind sysfs files.  But this would fail with a 0 buffer length
due to the missing descriptor.

Fix by defining a reasonable fallback size: The minimum
device receive buffer size required by the CDC WMC standard,
revision 1.1
Signed-off-by: NBjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Acked-by: NGiancarlo Asnaghi <giancarlo.asnaghi@st.com>
Cc: Alan Cox <alan@linux.intel.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Fix the following build warning:

warning: (USB_HWA_HCD) selects UWB_HWA which has unmet direct dependencies (UWB && USB)
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch (as1515) fixes some unavoidably dumb compiler warnings:

  CC [M]  drivers/usb/renesas_usbhs/mod.o
In file included from drivers/usb/host/ohci-hcd.c:101:0:
drivers/usb/host/ohci-dbg.c: In function ‘fill_registers_buffer’:
drivers/usb/host/ohci-dbg.c:656:2: warning: the comparison will always evaluate as ‘true’ for the address of ‘next’ will never be NULL [-Waddress]
drivers/usb/host/ohci-dbg.c:675:3: warning: the comparison will always evaluate as ‘true’ for the address of ‘next’ will never be NULL [-Waddress]

Instead of trying to fix the macro to work under all cirumstances,
just add a second macro for use in cases where the "next" argument is
the address of a local variable.

Unfortunately the macro cannot be replaced by a real subroutine,
because there's no va_list version of ohci_dbg() or dev_dbg().
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Fix the following compile warning:

drivers/usb/serial/kobil_sct.c: In function ‘__check_debug’:
drivers/usb/serial/kobil_sct.c:719:1: warning: return from incompatible
pointer type [enabled by default]
Signed-off-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add missing iounmap in error handling code, in a case where the function
already preforms iounmap on some other execution path.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
statement S,S1;
int ret;
@@
e = \(ioremap\|ioremap_nocache\)(...)
... when != iounmap(e)
if (<+...e...+>) S
... when any
    when != iounmap(e)
*if (...)
   { ... when != iounmap(e)
     return ...; }
... when any
iounmap(e);
// </smpl>
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

As it turns out, there was a mismatch between the allocated inbuf size
(desc->bMaxPacketSize0, typically something like 64) and the length we
specified in the URB (desc->wMaxCommand, typically something like 2048)
Signed-off-by: NBjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

wdm_disconnect() waits for the mutex held by wdm_read() before
calling wake_up_all().  This causes a deadlock, preventing device removal
to complete.  Do the wake_up_all() before we start waiting for the locks.
Signed-off-by: NBjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

using a separate read and write mutex for locking is sufficient to make the
driver accept simultaneous read and write. This improves useability a lot.
Signed-off-by: NBjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Cc: Oliver Neukum <oneukum@suse.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

wdm_in_callback() will also touch this field, so we cannot change it without locking

Cc: stable@vger.kernel.org
Signed-off-by: NBjørn Mork <bjorn@mork.no>
Acked-by: NOliver Neukum <oneukum@suse.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This changes the max length for the usb seven segment delcom device to 8
from 6. Delcom has both 6 and 8 variants and having 8 works fine with
devices which are only 6.
Signed-off-by: NHarrison Metzger <harrisonmetz@gmail.com>
Signed-off-by: NStuart Pook <stuart@acm.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add vendor and product ID for USB 3G/LTE modem of docomo L-02C
Signed-off-by: NKentaro Matsuyama <kentaro.matsuyama@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Calling edge_remove_sysfs_attrs from edge_disconnect is too late
as the device has already been removed from sysfs.

Do the simple and obvious thing and make edge_remove_sysfs_attrs
the port_remove method.
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
Reported-by: NWolfgang Frisch <wfpub@roembden.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This reverts commit 26c71a79.

It's not needed, to quote Ming Lei:
	Looks you have queued the patch into your tree, but just now I
	find the patch is not needed at all, since we have had
	minor_rwsem(drivers/usb/core/file.c) for this purpose, please
	drop the patch, sorry for it.

Cc: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Allow more baud rates to be set in [1M,2M] baud.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The newer cp2104 devices require the baud rate to be initialised after
power on. Make sure it is set when port is opened.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Clean up and refactor speed handling.
Document baud rate handling for CP210{1,2,4,5,10}.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

We do not implement B0 hangup yet so map low baudrates to 300bps.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

[Based on a patch from Johan, mangled by gregkh to keep things in line]

Fix up the variable usage in the set_termios call.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This fix changes the way baudrates are set on the CP210x devices from
Silicon Labs. The CP2101/2/3 will respond to both a GET/SET_BAUDDIV
command, and GET/SET_BAUDRATE command, while CP2104 and higher devices
only respond to GET/SET_BAUDRATE. The current cp210x.ko driver in
kernel version 3.2.0 only implements the GET/SET_BAUDDIV command.

This patch implements the two new codes for the GET/SET_BAUDRATE
commands. Then there is a change in the way that the baudrate is
assigned or retrieved. This is done according to the CP210x USB
specification in AN571. This document can be found here:
http://www.silabs.com/pages/DownloadDoc.aspx?FILEURL=Support%20Documents/TechnicalDocs/AN571.pdf&src=DocumentationWebPart

Sections 5.3/5.4 describe the USB packets for the old baudrate method.
Sections 5.5/5.6 describe the USB packets for the new method. This
patch also implements the new request scheme, and eliminates the
unnecessary baudrate calculations since it uses the "actual baudrate"
method.

This patch solves the problem reported for the CP2104 in bug 42586,
and also keeps support for all other devices (CP2101/2/3).

This patchfile is also attached to the bug report on
bugzilla.kernel.org. This patch has been developed and test on the
3.2.0 mainline kernel version under Ubuntu 10.11.
Signed-off-by: NPreston Fick <preston.fick@silabs.com>
[duplicate patch also sent by Johan - gregkh]
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Make sure port is fully initialised before calling generic open.
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This device is a Oscilloscope/Logic Analizer/Pattern Generator/TDR,
using a Silabs CP2103 USB to UART Bridge.
Signed-off-by: NRenato Caldas <rmsc@fe.up.pt>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I tested this against 2.6.39 in the Ubuntu kernel, however I see the IDs
are not in latest 3.2 git.

This adds IDs for the FTDI controller in the Rainforest Automation
Zigbee dongle.
Signed-off-by: NPeter Naulls <peter@chocky.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Port A for JTAG, port B for serial.
Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Fix regression introduced by commit b1ffb4c8 ("USB: Fix Corruption
issue in USB ftdi driver ftdi_sio.c") which caused the termios settings
to no longer be initialised at open. Consequently it was no longer
possible to set the port to the default speed of 9600 baud without first
changing to another baud rate and back again.
Reported-by: NRoland Ramthun <mail@roland-ramthun.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Tested-by: NRoland Ramthun <mail@roland-ramthun.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Return EINVAL if new baud_base does not match the current one.

The baud_base is device specific and can not be changed. This restores
the old (pre-2005) behaviour which was changed due to a
misunderstanding regarding this fact (see
https://lkml.org/lkml/2005/1/20/84).
Reported-by: NTorbjörn Lofterud <torbjorn@pi.nxs.se>
Signed-off-by: NJohan Hovold <jhovold@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/misc/emi26.c:40: warning: 'emi26_init' declared 'static' but never defined
drivers/usb/misc/emi26.c:41: warning: 'emi26_exit' declared 'static' but never defined
drivers/usb/misc/emi62.c:49: warning: 'emi62_init' declared 'static' but never defined
drivers/usb/misc/emi62.c:50: warning: 'emi62_exit' declared 'static' but never defined
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

num_sgs contains the number of sgs assigned by the gadget.
num_mapped_sgs contains the number of mapped sgs which may differ from
the gadget's values. For dma_unmap_sg() we have to provide the value
which was returned by dma_map_sg().
Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: NFelipe Balbi <balbi@ti.com>