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Use helper functions to determine the type and direction of an endpoint
instead of fiddling with bEndpointAddress and bmAttributes
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Use helper functions to determine the type and direction of an endpoint
instead of fiddling with bEndpointAddress and bmAttributes
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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direction
Use helper functions to determine the type and direction of an endpoint
instead of fiddling with bEndpointAddress and bmAttributes
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Use helper functions to determine the type and direction of an endpoint
instead of fiddling with bEndpointAddress and bmAttributes
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fix 3 sparse warning in drivers/usb/core/sysfs.c.
warning: symbol '__mptr' shadows an earlier one
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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D-Link DWN-652 in Modem mode exposes 3 interfaces
- First one is the USB storage one
- Second one is for both control and connection
- Third one is unknown
This patch avoids usb-storage trying to switch again when already in
modem mode, and exposes only 2 ttyUSB instead of 3 by not attaching
to the storage interface
Signed-off-by: Pascal Terjan <pterjan@mandriva.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Modern systems do not use usbfs; the entries within it are files,
not device nodes, and do not support ACLs which are the default way to
provide access to USB devices to untrusted users.
It is replaced by device-nodes maintained by udev in /dev/bus/usb,
libusb uses this device nodes.
Mark the option as deprecated, and hide entirely for non-embedded builds
(which may not be using udev but require raw USB device access).
Signed-off-by: Scott James Remnant <scott@canonical.com>
Acked-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as1230) consolidates code in usb_unbind_interface() and
usb_driver_release_interface(). In fact, it makes release_interface
call unbind_interface, thereby removing the need for duplicated code.
It works like this: If the interface has already been registered with
the driver core when a driver releases it, then the usual driver-core
mechanism will call unbind_interface. If it hasn't been unregistered
then we will make the call ourselves.
As a nice bonus, drivers now don't have to worry about whether their
disconnect method will get called when they release an interface -- it
always will. Previously it would be called only if the interface was
registered.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Added a function to set the packet size to be used based on the value from the
device endpoint descriptor. The FT2232H and FT4232H hi-speed devices will have
wMaxPacketSize of 512 bytes when connected to a USB 2.0 hi-speed host, but will
use alternative descriptors with wMaxPacketSize of 64 bytes if connected to a
USB 1.1 host or hub. All other FTDI devices have wMaxPacketSize of 64 bytes,
except some FT232R and FT245R devices which customers have mistakenly
programmed to have wMaxPacketSize of 0 - this is an error and will be
overridden to use wMaxPacketSize of 64 bytes. The packet size used is
important as it determines where the driver removes the status bytes from the
incoming data. If it is incorrect, it will lead to data corruption.
Signed-off-by: Mark J. Adamson <mark.adamson@ftdichip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Added support for FTDI's USB 2.0 hi-speed devices - FT2232H (2
interfaces) and FT4232H (4 interfaces), including a new baud rate
calculation for these devices which can now achieve up to 12Mbaud by
turning off a divide by 2.5 in the baud rate generator of the chips. In
order to achieve baud rates of <1200 baud, the divide by 2.5 must be
active. The default product ID of the FT2232H is 0x6010 (same as the
FT2232C IC). The default PID of the FT4232H is 0x6011.
Signed-off-by: Mark J. Adamson <mark.adamson@ftdichip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Tested on OMAP3 host side with Creative (Live! Cam Optia) USB camera
which uses high bandwidth isochronous IN endpoints. FIFO mode 4 is
updated to provide the needed 4K endpoint buffer without breaking
the g_nokia composite gadget configuration. (This is the only
gadget driver known to use enough endpoints to notice the change.)
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Currently, with Inventra DMA, we use Mode 0 if transfer size is less
than or equal to the endpoint's maxpacket size. This requires that
we explicitly set TXPKTRDY for that transfer.
However the musb_g_tx code will not set TXPKTRDY twice if the last
transfer is exactly equal to maxpacket, even if request->zero is set.
Using Mode 1 will solve this; a better fix might be in musb_g_tx().
Without this change, musb will not correctly send out a ZLP if the
last transfer is the maxpacket size and request->zero is set.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Adjust HNP state machines in MUSB driver so that they handle the
case where the cable is disconnected. The A-side machine was
very wrong (unrecoverable); the B-Side was much less so.
- A_PERIPHERAL ... as usual, the non-observability of the ID
pin through Mentor's registers makes trouble. We can't go
directly to A_WAIT_VFALL to end the session and start the
disconnect processing. We can however sense link suspending,
go to A_WAIT_BCON, and from there use OTG timeouts to finally
trigger that A_WAIT_VFALL transition. (Hoping that nobody
reconnects quickly to that port and notices the wrong state.)
- B_HOST ... actually clear the Host Request (HR) bit as the
messages say, disconnect the peripheral from the root hub,
and don't detour through a suspend state. (In some cases
this would eventually have cleaned up.)
Also adjust the A_SUSPEND transition to respect the A_AIDL_BDIS
timeout, so if HNP doesn't trigger quickly enough the A_WAIT_VFALL
transition happens as it should.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Minor HNP bugfixes, so the initial role switch works:
- A-Device:
* disconnect-during-suspend enters A_PERIPHERAL state
* kill OTG timer after reset as A_PERIPHERAL ...
* ... and also pass that reset to the gadget
* once HNP succeeds, clear the "ignore_disconnect" flag
* from A_PERIPHERAL, disconnect transitions to A_WAIT_BCON
- B-Device:
* kill OTG timer on entry to B_HOST state (HNP succeeded)
* once HNP succeeds, clear "ignore_disconnect" flag
* kick the root hub only _after_ the state is adjusted
Other state transitions are left alone. Notably, exit paths from
the "roles have switched" state ... A_PERIPHERAL handling of that
stays seriously broken.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Minor cleanup of OTG timer handling:
* unify decls for OTG time constants, in the core header
* set up and use that timer in a more normal way
* move to the driver struct, so it's usable outside core
And tighten use and setup of T(a_wait_bcon) so that if it's used,
it's always valid. (If that timer expires, the A-device will
stop powering VBUS. For non-OTG systems, that will be a surprise.)
No behavioral changes, other than more consistency when applying
that core HNP timeout.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Let the otg_transceiver in MUSB be managed by an external driver;
don't assume it's integrated. OMAP3 chips need it to be external,
and there may be ways to interact with the transceiver which add
functionality to the system.
Platform init code is responsible for setting up the transeciver,
probably using the NOP transceiver for integrated transceivers.
External ones will use whatever the board init code provided,
such as twl4030 or something more hands-off.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The NOP OTG transceiver driver needs to be usable from modules.
Make sure its symbols are always accessible at both compile and
link time, and make sure the device instance is allocated from
the heap so that device lifetime rules are obeyed.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Fix a reporting glitch in the twl4030 USB transceiver code.
It wasn't properly distinguishing the two types of active
USB link: ID grounded, vs not. In the current code that
distinction doesn't much matter; in the future this bugfix
should help support better USB controller communications.
Provide a comment sorting out some of the cryptic bits of
the manual: different sections use different names for
key signals, and the register definitions don't help much
without the explanations and diagrams.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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A pointer to ehci_orion_drv_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded. Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.
An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Ronen Shitrit <rshitrit@marvell.com>
Cc: Lennert Buytenhek <buytenh@marvell.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Cc: Nicolas Pitre <nico@marvell.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Tzachi Perelstein <tzachi@marvell.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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A pointer to r8a66597_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded. Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.
An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Cc: Magnus Damm <damm@igel.co.jp>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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A pointer to twl4030_usb_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded. Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.
An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Jouni Hogander <jouni.hogander@nokia.com>
Cc: Kalle Jokiniemi <kalle.jokiniemi@digia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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As DaVinci DM646x has a dedicated CPPI DMA interrupt, replace
cppi_completion() (which has always been kind of layering
violation) by a complete CPPI interrupt handler.
[ dbrownell@users.sourceforge.net: only cppi_dma.c needs platform
device header, not cppi_dma.h ]
Signed-off-by: Dmitry Krivoschekov <dkrivoschekov@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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As musb_advance_schedule() is now the only remaning
caller of musb_giveback() (and the only valid context
of such call), just fold the latter into the former
and then rename __musb_giveback() into musb_giveback().
This is a net minor shrink.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The argument for the 'is_in' parameter of musb_cleanup_urb()
is always extracted from an URB that's passed to the function.
So that parameter is superfluous; remove it.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The existance of the scheduling list shouldn't matter in
determining whether there's currectly an URB executing on a
hardware endpoint. What should actually matter is the 'in_qh'
or 'out_qh' fields of the 'struct musb_hw_ep' -- those are
set in musb_start_urb() and cleared in musb_giveback() when
the endpoint's URB list drains. Hence we should be able to
replace the big *switch* statements in musb_urb_dequeue()
and musb_h_disable() with mere musb_ep_get_qh() calls...
While at it, do some more changes:
- add 'is_in' variable to musb_urb_dequeue();
- remove the unnecessary 'epnum' variable from musb_h_disable();
- fix the comment style in the vicinity.
This is a minor shrink of source and object code.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Factor out the often used code to get/set the active 'qh'
pointer for the hardware endpoint. Change the way the case
of a shared FIFO is handled by setting *both* 'in_qh' and
'out_qh' fields of 'struct musb_hw_ep'. That seems more
consistent and makes getting to the current 'qh' easy when
the code knows the direction beforehand.
While at it, turn some assignments into intializers and
fix declaration style in the vicinity.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Refactor musb_save_toggle() as follows:
- replace 'struct musb_hw_ep *ep' parameter by 'struct
musb_qh *qh' to avoid re-calculating this value
- move usb_settogle() call out of the *if* operator.
This is a net minor shrink of source and object code.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Suppress "parasitic" endpoint interrupts in the DMA mode
when using CPPI DMA driver; they're caused by the MUSB gadget
driver using the DMA request mode 0 instead of the mode 1.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The gadget EP0 code routinely ignores an interrupt at end of
the data phase because of musb_g_ep0_giveback() resetting the
state machine to "idle, waiting for SETUP" phase prematurely.
The driver also prematurely leaves the status phase on
receiving the SetupEnd interrupt.
As there were still unhandled endpoint 0 interrupts happening
from time to time after fixing these issues, there turned to
be yet another culprit: two distinct gadget states collapsed
into one.
The (missing) state that comes after STATUS IN/OUT states was
typically indiscernible from them since the corresponding
interrupts tend to happen within too little period of time
(due to only a zero-length status packet in between) and so
they got coalesced; yet this state is not the same as the next
one which is associated with the reception of a SETUP packet.
Adding this extra state seems to have fixed the rest of the
unhandled interrupts that generic_interrupt() and
davinci_interrupt() hid by faking their result and only
emitting a debug message -- so, stop doing that.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Acked-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adds support for the Toshiba HSDPA Minicard (which is just a
rebranded Novatel EU870D) used in some Toshiba laptops.
This is my first patch attempt, I hope I got the conventions right.
Signed-off-by: Michele Valzelli <valz@messagenet.it>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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I would like to have added new device to usbserial/ftdi_sio driver.
These ids used USB track device (http://www.l-and-b.dk/access_alt.html).
They use differend device IDs, but it works as standard usb-serial
conventer.
From: Daniel Suchy <danny@danysek.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/scsi/fcoe/fcoe.c
net/core/drop_monitor.c
net/core/net-traces.c
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (31 commits)
trivial: remove the trivial patch monkey's name from SubmittingPatches
trivial: Fix a typo in comment of addrconf_dad_start()
trivial: usb: fix missing space typo in doc
trivial: pci hotplug: adding __init/__exit macros to sgi_hotplug
trivial: Remove the hyphen from git commands
trivial: fix ETIMEOUT -> ETIMEDOUT typos
trivial: Kconfig: .ko is normally not included in module names
trivial: SubmittingPatches: fix typo
trivial: Documentation/dell_rbu.txt: fix typos
trivial: Fix Pavel's address in MAINTAINERS
trivial: ftrace:fix description of trace directory
trivial: unnecessary (void*) cast removal in sound/oss/msnd.c
trivial: input/misc: Fix typo in Kconfig
trivial: fix grammo in bus_for_each_dev() kerneldoc
trivial: rbtree.txt: fix rb_entry() parameters in sample code
trivial: spelling fix in ppc code comments
trivial: fix typo in bio_alloc kernel doc
trivial: Documentation/rbtree.txt: cleanup kerneldoc of rbtree.txt
trivial: Miscellaneous documentation typo fixes
trivial: fix typo milisecond/millisecond for documentation and source comments.
...
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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits)
MAINTAINERS: EB110ATX is not ebsa110
MAINTAINERS: update Eric Miao's email address and status
fb: add support of LCD display controller on pxa168/910 (base layer)
[ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN
[ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines
[ARM] 5544/1: Trust PrimeCell resource sizes
[ARM] pxa/sharpsl_pm: cleanup of gpio-related code.
[ARM] pxa/sharpsl_pm: drop set_irq_type calls
[ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one
[ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific
[ARM] sa1100: remove unused collie_pm.c
[ARM] pxa: fix the conflicting non-static declarations of global_gpios[]
[ARM] 5550/1: Add default configure file for w90p910 platform
[ARM] 5549/1: Add clock api for w90p910 platform.
[ARM] 5548/1: Add gpio api for w90p910 platform
[ARM] 5551/1: Add multi-function pin api for w90p910 platform.
[ARM] Make ARM_VIC_NR depend on ARM_VIC
[ARM] 5546/1: ARM PL022 SSP/SPI driver v3
ARM: OMAP4: SMP: Update defconfig for OMAP4430
ARM: OMAP4: SMP: Enable SMP support for OMAP4430
...
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Convert magic values 1 and -1 to NETDEV_TX_BUSY and NETDEV_TX_LOCKED respectively.
0 (NETDEV_TX_OK) is not changed to keep the noise down, except in very few cases
where its in direct proximity to one of the other values.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (55 commits)
microblaze: Don't use access_ok for unaligned
microblaze: remove unused flat_stack_align() definition
microblaze: Fix problem with early_printk in startup
microblaze_mmu_v2: Makefiles
microblaze_mmu_v2: Kconfig update
microblaze_mmu_v2: stat.h MMU update
microblaze_mmu_v2: Elf update
microblaze_mmu_v2: Update dma.h for MMU
microblaze_mmu_v2: Update cacheflush.h
microblaze_mmu_v2: Update signal returning address
microblaze_mmu_v2: Traps MMU update
microblaze_mmu_v2: Enable fork syscall for MMU and add fork as vfork for noMMU
microblaze_mmu_v2: Update linker script for MMU
microblaze_mmu_v2: Add MMU related exceptions handling
microblaze_mmu_v2: uaccess MMU update
microblaze_mmu_v2: Update exception handling - MMU exception
microblaze_mmu_v2: entry.S, entry.h
microblaze_mmu_v2: Add CURRENT_TASK for entry.S
microblaze_mmu_v2: MMU asm offset update
microblaze_mmu_v2: Update tlb.h and tlbflush.h
...
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Signed-off-by: Martin Olsson <martin@minimum.se>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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[xfs, btrfs, capifs, shmem don't need BKL, exempt]
Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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* 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block: (153 commits)
block: add request clone interface (v2)
floppy: fix hibernation
ramdisk: remove long-deprecated "ramdisk=" boot-time parameter
fs/bio.c: add missing __user annotation
block: prevent possible io_context->refcount overflow
Add serial number support for virtio_blk, V4a
block: Add missing bounce_pfn stacking and fix comments
Revert "block: Fix bounce limit setting in DM"
cciss: decode unit attention in SCSI error handling code
cciss: Remove no longer needed sendcmd reject processing code
cciss: change SCSI error handling routines to work with interrupts enabled.
cciss: separate error processing and command retrying code in sendcmd_withirq_core()
cciss: factor out fix target status processing code from sendcmd functions
cciss: simplify interface of sendcmd() and sendcmd_withirq()
cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code
cciss: Use schedule_timeout_uninterruptible in SCSI error handling code
block: needs to set the residual length of a bidi request
Revert "block: implement blkdev_readpages"
block: Fix bounce limit setting in DM
Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt
...
Manually fix conflicts with tracing updates in:
block/blk-sysfs.c
drivers/ide/ide-atapi.c
drivers/ide/ide-cd.c
drivers/ide/ide-floppy.c
drivers/ide/ide-tape.c
include/trace/events/block.h
kernel/trace/blktrace.c
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Interface blacklisting is necessary for non-serial interfaces that are handled
by a different driver. The interface blacklisting is implemented in sierra
driver per device. Each device in need of a blacklist has a static information
array kept in the driver. This array contains the interface numbers that are
blacklisted. The pointer for each blacklist array and the length
of that blacklist are 'bundled' in data structure sierra_iface_info. A pointer
to this information is set in id_table when the device is added to the id_table.
The following is summary of changes we have made to sierra.c driver in
this patch dealing with interface blacklisting support:
- Added data structure sierra_iface_info and function is_blacklisted()
to support blacklisting
- Modified sierra_probe() to handle blacklisted interfaces accordingly
- Improved comments in id_table
- Added new device in id_table with blacklist interface support
Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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[Folded from eight patches into one as the original set according to the
author "All of the patches need to be applied to obtain a working product"
so keeping them split seems unhelpful
Merge fixes done versus other conflicting changes and moved the
spin_lock_init from open to setup time -- Alan]
Summary of the changes and code re-organization in this patch:
- The memory for urbs is allocated and urbs are submitted only for the active
interfaces (instead of pre-allocating these for all interfaces). This will
save memory especially in the case of using composite devices.
- The code has been re-organized and functionality has been extracted from
sierra_startup(), sierra_shutdown(), sierra_open(), sierra_close() and added
in helper functions sierra_release_urb(), sierra_stop_rx_urbs(),
sierra_submit_rx_urbs() and sierra_setup_urb()
- Added function sierra_release_urb() to free an urb and its transfer
buffer.
- Removed unecessary include file reference and comment.
- Added function sierra_stop_rx_urbs() that takes care of the release of
receive and interrupt urbs. This function is to be called by sierra_close()
whenever an interface is de-activated.
- Added new function sierra_submit_rx_urbs() that handles the submission of
receive urbs and interrupt urbs (if any) during the interface activation.
This function is to be called by sierra_open(). Added a second parameter to
pass the memory allocation (as suggested by Oliver Neukum) so that this
function can be used in post_reset() and resume().
- Added new function sierra_setup_urb() that contains the functionality to
allocate an urb, fill bulk urb using the supplied memory allocation flag
and release urb upon error. Added parameter so that the caller pass the
memory allocation flag for flexibility.
- Moved sierra_close() before sierra_open() to resolve dependencies
introduced by the code reorganization.
- Modified sierra_close() to call sierra_stop_rx_urbs() and
sierra_release_urb() functions added in previous patch.
- Modified sierra_open() to call sierra_setup_urb() and sierra_submit_rx_urbs()
functions; note urbs are allocated and submitted for each activated interface.
- Modified sierra_startup() so that allocation of urbs happens whenever an
interface is activated (urb allocation is moved to sierra_open()).
- Modified sierra_shutdown() so that urbs are freed whenever an interface is
de-activated (urb freeing moved to sierra_close() as shown in previous patch
from the series)
- Removed unecessary data structure from sierra_port_private_data
- Suppress an entry in logs by not re-submitting an urb when usb_submit_urb()
returns -EPERM, as this shows that usb_kill_urb() is running (as suggested by
Oliver Neukum)
Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Alan Cox <alan.cox@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The various merges into the sierra driver inadvertently undid
commit 212b8f0c3f5a2280bfa1d6ab13a6fe98552becaa by Elina Pasheva
<epasheva@sierrawireless.com>. Put it back so the OBEX port works again.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The new open/close logic handles DTR and friends, so don't do it in our own
open routine as well.
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This allows users to use the standard setserial command with this FT232
feature as well as obscure chip specific interfaces we have now. We keep
track of and respect the sysfs value for non-low-latency cases. In theory we
could do smart stuff with VTIME and the like but this seems of questionable
worth.
Closes-bug: http://bugzilla.kernel.org/show_bug.cgi?id=9120
Signed-off-by: Alan Cox <alan@linux.intel.com)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch replaces the string "CP2101" with "CP210x" within cp210x.c
This is to reduce confusion about the fact that the driver is actually
compatible with CP2101, CP2102 and CP2103 devices.
Signed-off-by: Craig Shelley <craig@microtron.org.uk>
(Fixed some collisions merging)
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The CP210X driver was developed without official device specifications.
This has lead to an incorrect assumption that all GET request codes are
equal to the corresponding SET request code +1.
This patch removes this incorrect assumption, and uses request code
definitions based on the updated GPL driver from SiLabs.
This modification is needed before extended functionality such as GPIO
on CP2103 can be supported.
Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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set_termios can now be used for setting the parity and the stopbits. This is
needed to use with cards which use a different parity then the parity used at
start (even).
If the iuu_uart_baud function return an error, we will return the old_termios
instead of the new one.
Signed-off-by: Olivier Bornet <Olivier.Bornet@puck.ch>
This was then revamped to use the various helpers, not copy non-hardware
bits any to add mark/space parity and csize reporting
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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