- 01 Feb, 2008 40 commits
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Dmitry Baryshkov authored
Use debugfs instead of /proc/driver/udc Signed-off-by:
Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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David Brownell authored
Various small at91_udc cleanups: - Use generic GPIO calls, not older platform-specific ones - Use gpio_request()/gpio_free() - Use VERBOSE_DEBUG convention, not older VERBOSE - Fix sparse complaint about parameter type (changed to gfp_t) - Add missing newline to some rarely-seen debug messages - Fix some old cleanup bugs on probe() fault paths Also add a mechanism whereby rm9200 gpios can drive the D+ pullup through an inverting transistor, based on a patch from Steve Birtles. Most UDC drivers supporting a GPIO based pullup should probably have such an option, but testing it requries such a board in hand! Signed-off-by:
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David Brownell authored
Update the ohci-at91 bus glue to start understanding about the per-port power switch GPIOs it's given (on the sam9263-ek and potentially other boards). For the moment this just claims them and forces them active (assuming active-low power enables) whenever the HCD is loaded. The assumption is still that board setup configures the GPIOs. Using gpio_request() tracks actual usage and guards against conflict. Signed-off-by:
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Sarah Sharp authored
This documents two newly created files: /sys/bus/usb/device/.../power/connected_duration /sys/bus/usb/device/.../power/active_duration Documentation was placed in Documentation/ABI/testing, since that's where the documentation is for the other USB sysfs power files. Signed-off-by:
Sarah Sharp <sarah.a.sharp@intel.com> Signed-off-by:
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Sarah Sharp authored
This patch exports two statistics to userspace: /sys/bus/usb/device/.../power/connected_duration /sys/bus/usb/device/.../power/active_duration connected_duration is the total time (in msec) that the device has been connected. active_duration is the total time the device has not been suspended. With these two statistics, tools like PowerTOP can calculate the percentage time that a device is active, i.e. not suspended or auto-suspended. Users can also use the active_duration to check if a device is actually autosuspended. Currently, they can set power/level to auto and power/autosuspend to a positive timeout, but there's no way to know from userspace if a device was actually autosuspended without looking at the dmesg output. These statistics will be useful in creating an automated userspace script to test autosuspend for USB devices. Signed-off-by:
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Kevin Lloyd authored
The following improvements were made: - Fixed control line issue where asserting DTR on ep5 would close ep2 - Added support for calc_num_ports (will help support future composite devices) Signed-off-by:
Kevin Lloyd <linux@sierrawireless.com> Signed-off-by:
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Harald Welte authored
[PATCH] ftdi_sio: add support for more FTDI based JTAG adaptors There are more devices similar to the Olimex JTAG adaptor, in that the first port of the FT2232C is used for JTAG, and only the second port is available as UART. I have thus renamed ftdi_olimex_{probe,quirk} to ftdi_jtag_{probe,quirk} and added vendor/product ID's for the OpenMoko Neo1973 Debug Board as well as the OOCDlink device. I've also updated the KERN_INFO message sent to userspace to remove the word 'olimex' and an extra '\n' that was causing an empty line in dmesg. Signed-off-by:Harald Welte <laforge@openmoko.org> Signed-off-by:
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Alan Cox authored
Don't pass NULL into termios functions when calling them internally Remove all the crap which then checks for NULL which can't occur now Clear CMSPAR as it is not supported Report the baud rate back to the caller properly (See FIXME someone with the docs) Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Alan Cox authored
Remove internal NULL passing in termios code Remove all the if checks it causes Encode the baud rate back properly Clear CMSPAR as it is not supported Signed-off-by:
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Alan Cox authored
Remove lots of NULL checks that can no longer occur Encode the baud rate back into the termios (again someone with docs see FIXME to improve this further) Signed-off-by:
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Dmitry Baryshkov authored
Use gpio_vbus instead of udc_is_connected for udc on tosa. Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
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David Brownell authored
Add a missing dependency which goofs up the xconfig display. Signed-off-by:
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David Brownell authored
Fix a small glitch noted by Yannick Cote. There is no endpoint number six, so if a (broken) host wrongly tried to change or read status of that endpoint, the driver could access reserved register space. Signed-off-by:
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Oliver Neukum authored
Am Sonntag, 16. Dezember 2007 05:23:47 schrieb Andrew Morton: > On Sat, 15 Dec 2007 07:08:52 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote: > > > http://bugzilla.kernel.org/show_bug.cgi?id=9573 > > There's a null pointer dereference on drivers/usb/serial/whiteheat.c as > > follows: > > > > (1) line 613: the test "if (port->tty)" implies that null is a legal value > > for "port->tty" at that point > > > > (2) neither firm_open nor firm_purge initialize "port->tty" drivers/usb/serial/usb-serial::serial_open() sets port->tty The check for NULL is bogus. This patch removes the check. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Acked-by:
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David Brownell authored
Fix potential (never-observed) oops on rare error path, bugzilla #9594. Fix uses the same test as used earlier. Also make the adjacent "else" block look like an "else" block instead of hiding like a bug. Signed-off-by:
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David Brownell authored
Kernel bugzilla entry #9569 reports a potential OOPS in some code supporting the integrated root hub TT support used on ARC/TDI derived cores. (This seems to have been a longstanding issue.) This patch cleans up usage of urb->dev->tt to avoid that potential oops and also fixes some overly long lines. Signed-off-by:
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Tzachi Perelstein authored
Some glue bits for the on-chip USB host controller in the Marvell Orion family of ARM SoCs, which is basically EHCI compatible. Signed-off-by:
Tzachi Perelstein <tzachi@marvell.com> Reviewed-by:
Lennert Buytenhek <buytenh@marvell.com> Signed-off-by:
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Marcin Slusarz authored
fix warning: drivers/usb/host/ehci-hcd.c:832:8: warning: symbol 'status' shadows an earlier one drivers/usb/host/ehci-hcd.c:790:71: originally declared here Signed-off-by:
Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by:
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Marcin Slusarz authored
fix warning: drivers/usb/core/devio.c:1226:20: warning: incorrect type in assignment (different address spaces) drivers/usb/core/devio.c:1226:20: expected void *usercontext drivers/usb/core/devio.c:1226:20: got void [noderef] <asn:1>* Signed-off-by:
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Marcin Slusarz authored
fix warnings: drivers/usb/storage/initializers.c:83:26: warning: incorrect type in argument 5 (different signedness) drivers/usb/storage/initializers.c:83:26: expected unsigned int *act_len drivers/usb/storage/initializers.c:83:26: got int *<noident> drivers/usb/storage/initializers.c:89:26: warning: incorrect type in argument 5 (different signedness) drivers/usb/storage/initializers.c:89:26: expected unsigned int *act_len drivers/usb/storage/initializers.c:89:26: got int *<noident> Signed-off-by:
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David Brownell authored
This adds a workaround for an issue reported with ISO transfers on some EHCI controllers, most recently with VIA KT800 and PS3 EHCI silicon. The issue is that the silicon doesn't necessarily seem to be done using ISO DMA descriptors (itd, sitd) when it marks them inactive. (One theory is that the ill-defined mechanism where hardware caches periodic transfer descriptors isn't invalidating their state...) With such silicon, quick re-use of those descriptors makes trouble. Waiting until the next frame seems to be a sufficient workaround. This patch ensures that the relevant descriptors aren't available for immediate re-use. It does so by not recycling them until after issuing the completion callback which would reuse them by enqueueing an URB and thus (re)allocating ISO DMA descriptors. Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Cc: Masashi Kimoto <Masashi_Kimoto@hq.scei.sony.co.jp> Signed-off-by:
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Joe Perches authored
Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Dmitry Baryshkov authored
Some boards (like e.g. Tosa) invert the VBUS-detection signal: it's low when a host is supplying VBUS, and high otherwise. Allow specifying whether gpio_vbus value is inverted. Signed-off-by:
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Andrew Morton authored
Dopey thing to do and lockdep will (or should) warn. Spotted by Daniel Walker. Cc: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Cc: Daniel Walker <dwalker@mvista.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Matthias Kaehlcke authored
USB testing driver: convert semaphore dev->sem to the mutex API Signed-off-by:
Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by:
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Nick Piggin authored
Convert USB mon driver from nopage to fault. Signed-off-by:
Nick Piggin <npiggin@suse.de> Acked-by:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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Alan Cox authored
Signed-off-by:
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Alan Cox authored
Signed-off-by:
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Alan Cox authored
A tester with actual hardware would be useful Signed-off-by:
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Sarah Sharp authored
Signed-off-by:
Sarah Sharp <saharabeara@gmail.com> Signed-off-by:
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Sarah Sharp authored
Without this fix, the pl2303 usb-serial adapter would not suspend properly unless it had been opened first. A pl2303 type_1 chip will still break if the system is hibernated while the RS-232 connector is powered by another system. This was broken before, and a reset resume does not fix it. All other suspend and autosuspend scenarios work with ATEN pl2303 adaptors with HX and type_1 chips. Signed-off-by:
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Sarah Sharp authored
Replace the FISH and SOUP macros that violated the macro guidelines in CodingStyle. Turn them into function calls with clearer variable names. Signed-off-by:
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Alan Stern authored
This patch (as1025) changes the default power budget for dummy-hcd to 500 mA and makes it a preprocessor parameter for easier testing. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
This patch (as1028) was mostly written by David Brownell; I made only a few changes (extra log info and a small bug fix -- which might account for why David's version had to be reverted). It adds a new watchdog timer to the ehci-hcd driver to be used exclusively for detecting lost or missing IAA notifications. Previously a shared timer had been used, which may have led to some problems as reported by Christian Hoffmann. Signed-off-by:
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Alan Stern authored
This patch (as1022b) adds stub methods for suspend and resume to the usbfs driver. There isn't much they can do since there's no way to inform a user task about the events. But it's important to have the stubs, because an upcoming change to usbcore will automatically unbind drivers that don't have those methods when a suspend occurs. Signed-off-by:
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Matthias Kaehlcke authored
Edgeport USB Serial Converter: convert semaphore es_sem to the mutex API Signed-off-by:
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Alan Stern authored
This patch (as1023) updates the code in usb_reset_composite_device(): Some local variable declarations are moved to inner loops. The interface locks are not acquired. This isn't necessary any more; its only reason was to prevent an interface from being suspended or resumed during the reset. But now interface power management is controlled by the USB device lock, not by the interface lock. The check for whether the interface is registered is removed. There doesn't seem to be any reason for checking; a driver for a non-registered interface deserves to be informed of device resets just as much as any other. Signed-off-by:
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Alan Stern authored
For as long as I've known about it, the USBDEVFS_CONNECT ioctl hasn't done what it's supposed to. The current code reprobes _all_ the unbound USB interfaces; this patch (as1021) makes it reprobe only the interface for which it was called. Signed-off-by:
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Benjamin Herrenschmidt authored
The OHCI driver's IRQ handler, while processing a WDH interrupt, masks and unmasks it. I believe this is both broken (the write may still be posted during the donelist processing it's trying to safeguard) and useless as this IRQ may not be reissued until it's acked (unless this legacy code is an uncommented workaround for some chip erratum). Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Tony Jones authored
We should not have multiple line files in sysfs, this moves the data to debugfs instead, like the UHCI driver. Signed-off-by:
Tony Jones <tonyj@suse.de> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by:
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