- 22 Oct, 2010 37 commits
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Alan Stern authored
This patch (as1417) fixes a problem affecting some (or all) nVidia chipsets. When the computer is shut down, the OHCI controllers continue to power the USB buses and evidently they drive a Reset signal out all their ports. This prevents attached devices from going to low power. Mouse LEDs stay on, for example, which is disconcerting for users and a drain on laptop batteries. The fix involves leaving each OHCI controller in the OPERATIONAL state during system shutdown rather than putting it in the RESET state. Although this nominally means the controller is running, in fact it's not doing very much since all the schedules are all disabled. However there is ongoing DMA to the Host Controller Communications Area, so the patch also disables the bus-master capability of all PCI USB controllers after the shutdown routine runs. The fix is applied only to nVidia-based PCI OHCI controllers, so it shouldn't cause problems on systems using other hardware. As an added safety measure, in case the kernel encounters one of these running controllers during boot, the patch changes quirk_usb_handoff_ohci() (which runs early on during PCI discovery) to reset the controller before anything bad can happen. Reported-by:
Pali Rohár <pali.rohar@gmail.com> Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Tested-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Dan Carpenter authored
This ioremap() was leaked on an error path. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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Praveena Nadahally authored
The protocol code is set 00 in IAD and it's set to 01 in ACM control interface descriptor in f_acm.c file. Due to this, windows is unable to install the modem(ACM) driver based on class-subclass-protocol matching. This patch corrects the protocol code in ACM IAD to the same as in acm_control_interface_desc protocol code. Acked-by:
Linus Walleij <linus.walleij@stericsson.com> Signed-off-by:
Praveena Nadahally <praveen.nadahally@stericsson.com> Cc: stable <stable@kernel.org> Signed-off-by:
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Javier Martinez Canillas authored
In today linux-next I got a compile warning due a possible uninitialized variable This patch solves the issue initializing the variable Signed-off-by:
Javier Martinez Canillas <martinez.javier@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <damm@opensource.se> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
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Hao Wu authored
This patch updated Kconfig for langwell otg transceiver driver. Add ipc driver(INTEL_SCU_IPC) as a dependency. Driver version is updated too. Signed-off-by:
Hao Wu <hao.wu@intel.com> Signed-off-by:
Alan Cox <alan@linux.intel.com> Signed-off-by:
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Hao Wu authored
This patch adds one new header file for the common data structure used in Intel Penwell/Langwell MID Platform OTG Transceiver drivers. After switched to the common data structure, Langwell/Penwell OTG Transceiver driver will provide an unified interface to host/client driver. Reported-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Thomas Gleixner authored
The "mutex" ftdi->sw_lock is used as a lock and a completion. Convert it to a real semaphore which allows both. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Mihai Donțu authored
Corrected the coding style. Signed-off-by:
Mihai Dontu <mihai.dontu@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Matthieu CASTET authored
tdi_reset is already taking care of setting host mode for tdi devices. Don't duplicate code in platform driver. Make ehci_halt a nop if the controller is not in host mode (otherwise it will fail), and let's ehci_reset do the tdi_reset. We need to move hcd->has_tt flags before ehci_halt, in order ehci_halt knows we are a tdi device. Before the setup routine was doing : - put controller in host mode - ehci_halt - ehci_init - hcd->has_tt = 1; - ehci_reset Now we do : - hcd->has_tt = 1; - ehci_halt - ehci_init - ehci_reset PS : now we handle correctly the device -> host transition. Signed-off-by:
Matthieu CASTET <matthieu.castet@parrot.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Michael Prokop authored
It's spelled "Function Filesystem" / "FunctionFS". This patch fixes some typos (FunctioFS->FunctionFS, Funcion->Function, funcion->function, redundant "as") in the Kconfig description of USB_FUNCTIONFS*. Signed-off-by:
Michael Prokop <mika@grml.org> Acked-by:
Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by:
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Alan Stern authored
This patch (as1413) changes g_file_storage to avoid generating a bogus automatic serial-number string descriptor. If the user doesn't provide a valid serial number via a module parameter then a warning is logged and the gadget won't have any serial string descriptor at all. Signed-off-by:
David Brownell <david-b@pacbell.net> CC: Michal Nazarewicz <m.nazarewicz@samsung.com> Signed-off-by:
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Joe Perches authored
There are about 2500 void functions in drivers/usb Only a few used return; at end of function. Standardize them a bit. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Simon Arlott authored
Commit f661c6f8 adds a check of the pipe type if CONFIG_USB_DEBUG is enabled, but it doesn't output anything if this scenario occurs. Signed-off-by:
Simon Arlott <simon@fire.lp0.eu> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Julia Lawall authored
The same expression is tested twice and the result is the same each time. Instead test for use_dma_ppb as in the test above. The sematic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @expression@ expression E; @@ ( * E || ... || E | * E && ... && E ) // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Michal Nazarewicz authored
The __ref* tags may have been confusing for new kernel developers (I was confused by them for sure) so adding a few more sentences to comment to clear things up for people who see those for the first time. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Uwe Kleine-König authored
The bind function is most of the time only called at init time so there is no need to save a pointer to it in the configuration structure. This fixes many section mismatches reported by modpost. Signed-off-by:
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Michal Nazarewicz authored
The bind function is most of the time only called at init time so there is no need to save a pointer to it in the composite driver structure. This fixes many section mismatches reported by modpost. Signed-off-by:
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Uwe Kleine-König authored
To accomplish this the function to register a gadget driver takes the bind function as a second argument. To make things clearer rename the function to resemble platform_driver_probe. This fixes many section mismatches like WARNING: drivers/usb/gadget/g_printer.o(.data+0xc): Section mismatch in reference from the variable printer_driver to the function .init.text:printer_bind() The variable printer_driver references the function __init printer_bind() All callers are fixed. Signed-off-by:
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Michal Nazarewicz authored
This reverts a commit which proposed an invalid solution for a section mismatch. Next 3 commits will fix it correctly. Conflicts: drivers/usb/gadget/mass_storage.c Signed-off-by:
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Michal Nazarewicz authored
This patch removes some of the string registration from the Multifunction Composite Gadget as composite layer can handle the iManufacturer and iProduct for us. This also adds the "needs_serial" so that composite layer will issue a warning if user space fails to provide the iSerialNumber module parameter. Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Michal Nazarewicz authored
This patch removes string registration from the Mass Storage Gadget. With recent changes to the composite framework, all that we need is handled by the composite layer. This means composite registers a string ID for manufacturer and product. This also adds the "needs_serial" so that composite layer will issue a warning if user space fails to provide the iSerialNumber module parameter. Signed-off-by:
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Michal Nazarewicz authored
The iManufatcurer, iProduct and iSerialNumber composite module parameters were only used when the gadget driver registers strings for manufacturer, product and serial number. If the gadget never bothered to set corresponding fields in USB device descriptors those module parameters are ignored. This commit makes the parameters work even if the strings ID have not been assigned. It also changes the way IDs are overridden -- what IDs are overridden is now saved in usb_composite_dev structure -- which makes it unnecessary to modify the string tables the way previous code did. The commit also adds a iProduct and iManufatcurer fields to the usb_composite_device structure. If they are set, appropriate strings are reserved and added to device descriptor. This makes it unnecessary for gadget drivers to maintain code for setting those. If iProduct is not set it defaults to usb_composite_device::name; if iManufatcurer is not set a default "<system> <release> with <gadget-name>" is used. The last thing is that if needs_serial field of usb_composite_device is set and user failed to provided iSerialNumber parameter a warning is issued. Signed-off-by:
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Michal Nazarewicz authored
This patch removes some of the string registration from the FunctionFS Gadget as composite layer can handle the iManufacturer and iProduct for us. It also removes some of the module parameters which were redundant as well as changes the name of others to better much the module parameter of the composite layer. Other then that, it also fixes formatting of multiline comments to match the coding style. Signed-off-by:
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Michal Nazarewicz authored
The nofua parameter (optionally ignore SCSI WRITE FUA) was added to the File Storage Gadget some time ago. This patch adds the same functionality to the Mass Storage Function. Signed-off-by:
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Michal Nazarewicz authored
The dev_attr_nofua file was created during fsg_bind() but was never removed. Made it a bit more symmetrical and added code to remove the file in fsg_unbind(). Signed-off-by:
Andy Shevchenko <ext-andriy.shevchenko@nokia.com> Signed-off-by:
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Michal Nazarewicz authored
This patch fixes the vendor and product ID the gadget uses by replacing the temporary IDs that were used during development (which should never get into mainline) with proper IDs. Signed-off-by:
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Michal Nazarewicz authored
This patch fixes the vendor and product ID the gadget uses by replacing the temporary IDs that were used during development (which should never get into mainline) with proper IDs. Signed-off-by:
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Wolfram Sang authored
Found while debugging a USB problem and trying to find the mentioned function. Signed-off-by:
Wolfram Sang <w.sang@pengutronix.de> Signed-off-by:
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Parirajan Muthalagu authored
Acked-by:
David Brownell <dbrownell@users.sourceforge.net> Acked-by:
Parirajan Muthalagu <parirajan.muthalagu@stericsson.com> Signed-off-by:
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Johan Hovold authored
Add new driver to access the SAM-BA boot application of Atmel AT91SAM devices. The SAM-BA firmware cannot handle merged write requests so we cannot use the generic write implementation (which uses the port write fifo). Tested with the SAM-BA 2.10 tools and an Atmel at91sam9260-ek. Signed-off-by:
Johan Hovold <jhovold@gmail.com> Tested-by:
Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by:
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Dan Carpenter authored
len is always greater than or equal to zero here. First of all, it's type is unsigned and also we only assign it numbers which are greater than or equal to zero. Removing the check lets us pull everything in an indent level. Signed-off-by:
Stephane duverger <stephane.duverger@gmail.com> Signed-off-by:
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JiebingLi authored
SRAM Memory handling for USB client function Signed-off-by:
JiebingLi <jiebing.li@intel.com> Signed-off-by:
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JiebingLi authored
Remote wakeup support in client driver. Made non-debug only this time. Signed-off-by:
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JiebingLi authored
PHY low power mode setting with a static function Signed-off-by:
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JiebingLi authored
Endpoint software structure initialization Signed-off-by:
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JiebingLi authored
Code cleanup by using standard debugging API's and USB inline functions Signed-off-by:
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Hao Wu authored
This adds support for the USB transceiver driver in the Langwell chipset used on the Intel MID platforms. It folds up the original patch set which includes basic support for the device, PHY low power mode (Please notice that there is a limitation, after we drive VBus down, 2ms delay is required from SCU FW to sync up OTGSC register with USBCFG register), software timers (the hardware timers do not work in low power mode), HNP, SRP. Signed-off-by:
Alek Du <alek.du@intel.com> Signed-off-by:
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- 20 Oct, 2010 3 commits
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Linus Torvalds authored
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git://git.linux-mips.org/pub/scm/upstream-linusLinus Torvalds authored
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: MIPS: O32 compat/N32: Fix to use compat syscall wrappers for AIO syscalls. MAINTAINERS: Change list for ioc_serial to linux-serial. SERIAL: ioc3_serial: Return -ENOMEM on memory allocation failure MIPS: jz4740: Fix Kbuild Platform file. MIPS: Repair Kbuild make clean breakage.
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Amit Shah authored
If the host is slow in reading data or doesn't read data at all, blocking write calls not only blocked the program that called write() but the entire guest itself. To overcome this, let's not block till the host signals it has given back the virtio ring element we passed it. Instead, send the buffer to the host and return to userspace. This operation then becomes similar to how non-blocking writes work, so let's use the existing code for this path as well. This code change also ensures blocking write calls do get blocked if there's not enough room in the virtio ring as well as they don't return -EAGAIN to userspace. Signed-off-by:
Amit Shah <amit.shah@redhat.com> Acked-by:
Hans de Goede <hdegoede@redhat.com> CC: stable@kernel.org Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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