- 08 Sep, 2005 40 commits
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david-b@pacbell.net authored
This adds the field tt_usecs to ehci_qh and ehci_iso_stream, and sets it appropriately when setting them up as periodic endpoints. It records the transation translator's think_time (added in last patch) plus the downstream (i.e. low or full speed) bustime of the transfer associated with each interrupt or iso frame, as calculated by usb_calc_bus_time. Signed-off-by:
Dan Streetman <ddstreet@ieee.org> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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david-b@pacbell.net authored
This adds think_time to the usb_tt struct and sets it appropriately (measured in ns); this can help us implement better split transaction scheduling. Signed-off-by:
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David Brownell authored
This wraps up the conversion of the "usbnet" driver structure, by moving the Prolific PL-2201/2302 minidriver to a module of its own. It also includes some minor cleanups to the remaining "usbnet" file, notably removing that long changelog at the top. Minor historical note: Linux 2.2 first called the driver for this hardware "plusb". Signed-off-by:
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David Brownell authored
This adds host-side RNDIS support to the "usbnet" driver, so Linux can talk to various devices (often based on WinCE) that otherwise only Windows could talk to. Tested with little-endian Linux talking to a Linux-USB Ethernet/RNDIS based peripheral. This also includes updates from Eddie C. Dost <ecd@brainaid.de> for big-endian SPARC Linux talking to a Nokia 9500 Communicator. It's still marked as EXPERIMENTAL because this code is so young. This ought to let Linux to work with various cable modems that previously would have been "Windows Only". Signed-off-by:
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David Brownell authored
Makes the CDC Ethernet support live in a separate driver module. This module is a bit special since it exports utility functions that are reused by the the Zaurus and RNDIS drivers, but it's not "core" like usbnet itself. Signed-off-by:
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David Brownell authored
This moves usbnet support for Zaurus and compatibles into its own module. Other than exporting a couple of helper functions, this just involved shuffling some code and updating the comments. Signed-off-by:
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David Brownell authored
This moves the GeneSys GL620USB-A support into its own driver file. It also fixes a "return wrong skb" glitch in the rx unbatching, as recently reported, and adds some missing byteswaps in the special "genelink" headers (so it might now work on big-endian Linux). Signed-off-by:
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David Brownell authored
As with the "cdc_subset" and "asix" drivers, this just moves the net1080 support into its one driver module. In this case there's a small bit of extra cleanup involved, moving some funky framing logic into the tx_fixup() routine (resolving a long overdue FIXME). Minor historical note: "usbnet" started out as "net1080", then got generalized to make it easier for other network drivers to reuse the urb queueing and fault management code here. Signed-off-by:
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David Brownell authored
This patch moves the ASIX AX8817x driver into its own file, just using the "usbnet" infrastructure as a utility library. - As with "cdc_subset" this involved minor Kconfig/kbuild tweaks, moving code from one file to another, and exporting a few functions. - This includes updates from Jamie Painter to add (and use) a new hook to handle the different maximum transfer sizes for rx and tx sides. - Also from Jamie, some bugfixes: * MDIO byteorder (to address some PPC media negotiation problems); * Force alignment at key spots when using ax88772 framing (on some embedded hardware, the network stack will break otherwise); * Address some link reset problems. It also makes this driver use the standard (5 seconds vs half second) control timeouts used elsewhere in USB; and wraps a few lines before the 80th column (which previously needed it). Signed-off-by: -
David Brownell authored
This patch creates the first of several separate "minidriver" modules for "usbnet". This one handles only the very simplest hardware, which can be handled almost entirely by the "usbnet" core. - Move device-specific bits into new "cdc_subset.c" driver, shrinking "usbnet" by a bunch; - Export the functions needed to support this minidriver (with EXPORT_SYMBOL_GPL); - Update Kconfig and kbuild accordingly. This one handles about a dozen different device types, with the most notable ones being Gumstix and most Linux-based PDAs (except Zaurus running that ancient code from Sharp). Signed-off-by: -
David Brownell authored
This starts to prepare the core of "usbnet" to know less about various framing protocols that map Ethernet packets onto USB, so "minidrivers" can be modules that just plug into the core. - Remove some framing-specific code that cluttered the core: * net->hard_header_len records how much space to preallocate; now drivers that add their own framing (Net1080, GeneLink, Zaurus, and RNDIS) will have smoother TX paths. Even for the drivers (Zaurus, Net1080) that need trailers. * defines new dev->hard_mtu, using this "hardware" limit to check changes to the link's settable "software" mtu. * now net->hard_header_len and dev->hard_mtu are set up in the driver bind() routines, if needed. - Transaction ID is no longer specific to the Net1080 framing; RNDIS needs one too. - Creates a new "usbnet.h" header with declarations that are shared between the core and what will be separate modules. - Plus a couple other minor tweaks, like recognizing -ESHUTDOWN means the keventd work should just shut itself down asap. The core code is only about 1/3 of this large file. Splitting out the minidrivers into separate modules (e.g. ones for ASIX adapters, Zaurii and similar, CDC Ethernet, etc), in later patches, will improve maintainability and shrink typical runtime footprints. Signed-off-by: -
Alexey Dobriyan authored
Fix drivers/usb/misc/ldusb.c: In function `ld_usb_read': drivers/usb/misc/ldusb.c:467: warning: int format, different type arg (arg 4) drivers/usb/misc/ldusb.c: In function `ld_usb_write': drivers/usb/misc/ldusb.c:531: warning: int format, different type arg (arg 4) drivers/usb/misc/ldusb.c:532: warning: int format, different type arg (arg 5) drivers/usb/misc/ldusb.c:532: warning: int format, different type arg (arg 6) Signed-off-by:
Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by:
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Adrian Bunk authored
Deprecate the OSS USB drivers. This patch includes spelling fixes by Lee Revell. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Dale Farnsworth authored
ohci-ppc-soc.c provides for a platform-specific callback mechanism for when the HC is successfully probed or removed. It turned out that none of the 3 platforms using it need this facility. Also the required include/asm-ppc/usb.h has never been accepted. This patch removes the callback feature and the include of <asm/usb.h>. Signed-off-by:
Dale Farnsworth <dale@farnsworth.org> Signed-off-by:
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david-b@pacbell.net authored
Avoid an annoying message that can appear if devices are disconnected in the middle of a USB scatterlist operation. Message noted in http://bugzilla.kernel.org/show_bug.cgi?id=4373 (but the real issue there seems to be a SCSI level hang). Signed-off-by:
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david-b@pacbell.net authored
Use a more correct calculation for highspeed bit times. http://bugzilla.kernel.org/show_bug.cgi?id=3604 This sort if thing might start to make a difference now that the high speed periodic scheduler is more complete -- and even getting used. Signed-off-by:
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Alan Stern authored
This patch (as556) adds support for unbinding the usb_generic "driver". That driver only binds to USB devices, as opposed to interfaces, and it does nothing much besides marking which struct device's go with an overall USB device plus providing suspend/resume methods. Now that users can unbind drivers at will using the sysfs "unbind" attribute, we need a rational way of dealing with USB devices that are no longer under full control of the USB stack. The patch handles this by unconfiguring the device, thereby removing all the interfaces and their associated drivers and children. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
This patch (as555) modifies the already-awkward usb_lock_device_for_reset routine in usbcore by adding a timeout. The whole point of the routine is that the caller wants to acquire some semaphores in the wrong order; protecting against the possibility of deadlock by timing out seems only prudent. Signed-off-by:
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Dale Farnsworth authored
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Ben Dooks authored
Fix the port numbering confusion for the S3C24XX platform device information as reported by Rudy <rudyboy168@gmail.com> This patch ensurs that the the ports are numbered 0 and 1. Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Alan Stern authored
This patch (as554) makes the hub driver disconnect any child USB devices when it is unbound from a hub. Normally this will never happen, but there are a few oddball ways to unbind the hub driver while leaving the children intact. For example, the new "unbind" sysfs attribute can be used for this purpose. Given that unbinding hubs with children is now safe, the patch also removes the code that prevented people from doing so using usbfs. Signed-off-by:
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Alan Stern authored
This patch (as553) merely moves some code and deletes an unneeded test in the hub driver. This is in preparation for the patch that follows. Signed-off-by:
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Daniel Drake authored
Adding flash-device support to the shuttle_usbat driver in 2.6.11 introduced the need to detect which type of device we are dealing with: CDRW drive, or flash media reader. The detection routine used turned out to not work for HP8200 CDRW users, who saw their devices being detected as a flash disk. This patch (which has been tested on both flash and cdrom) removes some unnecessary code, moves device detection to much later during initialization, and introduces a new detection routine which appears to work. Signed-off-by:
Daniel Drake <dsd@gentoo.org> Signed-off-by:
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Greg Kroah-Hartman authored
Signed-off-by: -
Alan Stern authored
29 July 2005, Cambridge, MA: This afternoon Alan Stern submitted a patch to remove the URB_ASYNC_UNLINK flag from the Linux kernel. Mr. Stern explained, "This flag is a relic from an earlier, less-well-designed system. For over a year it hasn't been used for anything other than printing warning messages." An anonymous spokesman for the Linux kernel development community commented, "This is exactly the sort of thing we see happening all the time. As the kernel evolves, support for old techniques and old code can be jettisoned and replaced by newer, better approaches. Proprietary operating systems do not have the freedom or flexibility to change so quickly." Mr. Stern, a staff member at Harvard University's Rowland Institute who works on Linux only as a hobby, noted that the patch (labelled as548) did not update two files, keyspan.c and option.c, in the USB drivers' "serial" subdirectory. "Those files need more extensive changes," he remarked. "They examine the status field of several URBs at times when they're not supposed to. That will need to be fixed before the URB_ASYNC_UNLINK flag is removed." Greg Kroah-Hartman, the kernel maintainer responsible for overseeing all of Linux's USB drivers, did not respond to our inquiries or return our calls. His only comment was "Applied, thanks." Signed-off-by:
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Matthew Dharm authored
This patch started life as as479b, and has been rediffed. Please note the order of submission of this latest patch series -- even tho this has an older original number, it is the last patch I'll be sending today. This patch changes the reported SCSI revision level to 2 for all disk-type devices. This is needed in a few cases because the device reports a level of 3 or higher but then crashes when given a REPORT LUNS command (for which support is supposed to be mandatory at those levels). This shouldn't harm us, since it only matters for sparse LUNs and we have separate ways of coping with that. Signed-off-by:
Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by:
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Matthew Dharm authored
This patch is originally from Nick Sillik, and has been rediffed against the latest tree. This patch adds usability to the OneTouch Button on Maxtor External USB Hard Drives. Using an unusual device entry it declares an extra init function which claims the interrupt endpoint associated with this button. The button is connected to the input system. Signed-off-by:
Nick Sillik <n.sillik@temple.edu> Signed-off-by:
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Matthew Dharm authored
This patch started life as as534, and has been re-diffed against the latest tree. usb-storage has a small loophole, a window between the time queuecommand accepts a new command and the time the control thread starts to execute it. If disconnect is called during that window, the driver won't cancel the pending command -- we've been relying on the SCSI core to cancel it for us during host removal. But it's better for usb-storage to cancel it; this avoids races and reduces reliance on the SCSI core. Fortunately cancelling these commands is easy to do; the key is to do it _before_ calling scsi_remove_host. Signed-off-by:
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Matthew Dharm authored
This patch started life as as533, and has been re-diffed against the current tree. Disconnect processing in usb-storage naturally divides into two parts: one to quiesce the driver (make sure no commands are executing or queued) and remove the host, and the other to deallocate all the USB and non-USB resources. This patch creates two subroutines to handle those two parts. Mostly it's just code movement, but there is one significant change. If the scsi-scanning thread fails to initialize but the host has successfully been added, we need to quiesce the driver before removing the host. After all, it's possible that scanning could have been initiated from somewhere else, such as userspace -- very low probability, but it's easily handled by calling the new subroutine. Signed-off-by:
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Matthew Dharm authored
This patch started life as as531 from Alan Stern. It has been rediffed against the latest tree. The SCSI people have deprecated the use of scsi_cmnd.serial_number for anything other than printk. Worse than that, the SCSI core doesn't always increment the number (when the error handler is running, for example). So this patch creates a locally-stored value for use in bulk-only tags. The net result is a simplification, since we no longer have to save & restore the serial_number value while autosensing. Signed-off-by:
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Olav Kongas authored
Switch isp116x-hcd over from root hub polling to interrupt. This change closes also a race that was present with the old polling scheme: status polling could happen in a time window, where root hub status bits were not stable. Signed-off-by:
Olav Kongas <ok@artecdesign.ee> Signed-off-by:
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Olav Kongas authored
This patch removes support for user-provided platform-specific hardware reset and clock starting/stopping functions. Hardware reset was needed earlier as getting the software reset working was tricky due to the lack of documentation. Recently, a number of people using isp116x have said the software reset is working for them. I haven't heard of anybody using the clock starting/stopping. Signed-off-by:
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Olav Kongas authored
This patch sets the isp116x to report overcurrent always per-port. Signed-off-by:
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Olav Kongas authored
The isp116x chip will now always be in per-port power switching mode. Remove conf options to set any other mode. Signed-off-by:
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Olav Kongas authored
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Olav Kongas authored
This patch removes the power-on-to-power-good-time configuration option for isp116x-hcd. Signed-off-by:
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david-b@pacbell.net authored
This just fixes some gfp flags warnings that joined us recently. Signed-off-by:
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Randy Dunlap authored
Rate-limit usblp printer error status messages. I unplugged my USB printer and almost instantly got several hundred of these in my kernel message log: drivers/usb/class/usblp.c: usblp0: error -19 reading printer status Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Pete Zaitcev authored
Back out Axboe-style quasi-S/G and replace it with one command and repeated URBs. This is similar to what usb-storage does, only instead of a few URBs allocated together, one URB is reused. Jens's idea was very nice, but it collapsed when I had to support packet commads for CD burning. I cannot issue two or more packet commands where application expected only one. However, burning does not work completely yet. The cdrecord starts, recognizes the device, then aborts without writing a TOC. Signed-off-by:
Pete Zaitcev <zaitcev@yahoo.com> Signed-off-by:
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Pete Zaitcev authored
When Al Viro saw the ub.c, he observed that it was a proof positive of Linus not reading patches anymore: names like fo_ob_ar_ba_2 used to cause serious fireworks. In my defence, any good scheme can be pushed to the realm of absurd if pushed far enough. Signed-off-by:
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