- 12 Oct, 2007 40 commits
-
-
Pete Zaitcev authored
If submit fails, slab hits a BUG() because of a double kfree. The today's lesson is, you cannot just slap USB_FREE_BUFFER on code without adjusting the error paths. The patch is made bigger by opportunistic refactoring. Signed-Off-By:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
-
Pete Zaitcev authored
Two things: - mbus can be NULL (in case of bus removal while reader is reading) - Remove a useless assignment Signed-off-by:
-
Pete Zaitcev authored
Setup packet must be visible in virtual space. There's absolutely no good reason to implement any kind of zero-copy transfer of 8 bytes, and the documentation in usb.h is explicit about it. So, drop DMA remapping. Signed-off-by:
-
Pete Zaitcev authored
This is a set of small updates to Alan's work to make the code more to my liking. Mostly premature optimizations, but also direction of control transfers in the binary interface was always out. Signed-off-by:
-
Pete Zaitcev authored
This is a small bunch of cosmetic fixes: - Timeout is not a write timeout anymore, rename - Condition in poll was confusingly backwards, invert and simplify - The comment log gave a wrong impression of version 0.13, terminate it. Signed-off-by:
-
Pete Zaitcev authored
Add a mutex to protect the ->statusbuf. Not really an issue, because CUPS is single-threaded when it talks to the printer, but I feel safer this way. This should be deadlock-free, but I kept this as a separate patch in case someone ends running a git bisect. Signed-off-by:
-
Felipe Balbi authored
This patch convert printk entries to dev_* macros, this provide better debugging and better readability to the code. Signed-off-by:
Felipe Balbi <felipe.lima@indt.org.br> Cc: Thomas <thomas@winischhofer.net> Signed-off-by:
-
Felipe Balbi authored
Better indentation Signed-off-by:
-
Felipe Balbi authored
Better indentation Signed-off-by:
-
Felipe Balbi authored
Better indentation Signed-off-by:
-
Felipe Balbi authored
Better indentation Signed-off-by:
-
Felipe Balbi authored
Trivial fix Signed-off-by:
-
Felipe Balbi authored
Unused code should be removed. We don't need to increase the size of the file with dead code inside if 0 statements. Signed-off-by:
-
Felipe Balbi authored
This patches clean some trailing whitespaces in sisusb2vga driver. Signed-off-by:
-
Alan Stern authored
This patch (as957) makes some minor cleanups to the g_file_storage driver: Update the copyright date and version string; Uniformize the logging macros for the gadget and the LUNs; Remove "inline" markers -- nowadays we rely on the compiler to decide which routines are best inlined; Use the print_hex_dump() library routines; Remove some unnecessary assignments within conditionals and fix some close-brace indenting levels; Fix some column-80 violations. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
-
Alan Stern authored
This patch (as955) prevents the interface-related sysfs files and endpoint pseudo-devices from being deleted and recreated when a call to usb_set_interface() specifies the current altsetting. Since the altsetting doesn't get changed, there's no need to do anything. Furthermore, avoiding changes to the endpoint devices will be necessary in the future. This code is called from usb_reset_device(), which gets invoked for reset-resume processing, but upcoming changes to the PM and driver cores will make it impossible to register devices while a suspend/resume transition is in progress. Since we don't need to re-register those endpoint devices anyhow, it's best to skip the whole thing. Signed-off-by:
-
Alan Stern authored
This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by:
-
Greg Kroah-Hartman authored
No one else calls it, this makes sparse happy. Signed-off-by: -
Greg Kroah-Hartman authored
As it is global, give it a usb specific name in the global namespace. Cc: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: -
Inaky Perez-Gonzalez authored
Signed-off-by:
Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by:
-
Inaky Perez-Gonzalez authored
Makes it possible to control the authorization of USB devices through sysfs's /sys/usb/devices/*/authorize. Update: per Adrian Bunk's suggestion, make dev_attr_authorized_default static Signed-off-by:
-
Inaky Perez-Gonzalez authored
These USB API functions will do the full authorization/deauthorization to be used for a device. When authorized we effectively allow a configuration to be set. Reverse that when deauthorized. Effectively this means that we have to clean all the configuration descriptors on deauthorize and reload them when we authorized. We could do without throwing them out for wired devices, but for wireless, we can read them only after authenticating, and thus, when authorizing an authenticated device we would need to read them. So to simplify, always release them on deauthorize(), re-read them on authorize(). Also fix leak reported by Ragner Magalhaes; in usb_deauthorize_device(), bNumConfigurations was being set to zero before the for loop, and thus the different raw descriptors where never being freed. Signed-off-by:
-
Inaky Perez-Gonzalez authored
This patch takes hub.c:usb_new_device() and splits it in three parts: - The actual actions of adding a new device (quirk detection, announcement and autoresume tracking) - Actual discovery and probing of the configuration and interfaces (split into __usb_configure_device()) - Configuration of the On-the-go parameters (split into __usb_configure_device_otg()). The fundamental reasons for doing this split are clarity (smaller functions are easier to maintain) and to allow part of the code to be reused when authorizing devices to connect. When a device is authorized connection, we need to run through the hoops we didn't run when it was connected but not authorized, which is basically parsing the configurations and probing them. usb_configure_device() will do that for us. Signed-off-by:
-
Inaky Perez-Gonzalez authored
If called and the device is not authorized to be used, then we won't choose a configuration (as they are not a concept that exists for an unauthorized device). However, the device is added to the system. Signed-off-by:
-
Inaky Perez-Gonzalez authored
If called and the device is not authorized to be used, it won't configure the interface and print a message saying so. Signed-off-by:
-
Inaky Perez-Gonzalez authored
If called and the device is not authorized to be used, then we don't allow reading the configurations. Signed-off-by:
-
Inaky Perez-Gonzalez authored
Will refuse to configure a non-authorized device. Update: simplified if statement--thanks to Ragner Magalhaes for the heads up. Signed-off-by:
-
Inaky Perez-Gonzalez authored
Signed-off-by:
-
Inaky Perez-Gonzalez authored
This path cleans the exit paths of usb_register_bus() [to use a goto schema], maximum line length (keeping it under ~75). Signed-off-by:
-
Inaky Perez-Gonzalez authored
This introduces /sys/bus/devices/usb*/authorized_default; it dictates what is going to be the default authorization state for devices connected to the host. User space can set that using the sysfs file. We hook to the root hub instead of to the device controller as it is quite easy to get to it in sysfs from the device structure (device 5-4.3 is usb5) vs. backtracking to the controller device. By default it is set to be 'authorized' (!0) for normal, wired USB devices and 'unauthorized' (0) for Wireless USB devices. As suggested by Adrian Bunk, make authorized_default static Signed-off-by:
-
Inaky Perez-Gonzalez authored
This just modifies 'struct usb_device' to contain the 'authorized' bit. It also adds a 'wusb' bit. This is needed because nonauthorized (and thus non-authenticated) wusb devices will fail certain kind of simple requests (such as string descriptors). By knowing the device is WUSB, we just avoid them. Signed-off-by:
-
David Brownell authored
Clean up gadget zero, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the VERBOSE_DEBUG convention - Some whitespace fixes. - A few comment updates - Plus a few other small cleanups: don't pass gfp_t around when it's always going to be GFP_ATOMIC, and do static init of serial number. Also go to straight GPL; there's no real point in dual licensing this stuff any more. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
-
David Brownell authored
Clean up the file storage gadget, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the DEBUG (from Kconfig+Makefile) and VERBOSE_DEBUG conventions. - Remove some "sparse" warnings (it still dislikes the __user annotations) This gave only a minor object code shrinkage. Signed-off-by:
-
David Brownell authored
Clean up the serial gadget, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the DEBUG and VERBOSE_DEBUG conventions; turned up a bug in the original debug messaging - Various whitespace fixes. This gave only a minor object code shrinkage, but the source looks much cleaner in various places. Signed-off-by:
-
David Brownell authored
Clean up the midi gadget, using newer APIs and conventions: - Remove many now-needless #includes - Use the DEBUG (from Kconfig+Makefile) and VERBOSE_DEBUG conventions. - Whitespace fixes There should be no effect on object code size. Signed-off-by:
-
David Brownell authored
Clean up the ethernet gadget, using newer APIs and conventions: - gadget_is_dualspeed() and gadget_is_otg() ... #ifdef removal - Remove many now-needless #includes - Use the VERBOSE_DEBUG convention - Minor whitespace fixes. - Fix a warning from "sparse". Surprisingly, this saved about 2K of code (16%) on a fullspeed-only ARMv4 platform. I'm bit puzzled by that (it's so much!), but approve of the result. Signed-off-by:
-
David Brownell authored
This adds two small inlines to the gadget stack, which will often evaluate to compile-time constants. That can help shrink object code and remove #ifdeffery. - gadget_is_dualspeed(), currently always a compile-time constant (depending on which controller is selected). - gadget_is_otg(), usually a compile time "false", but this is a runtime test if the platform enables OTG (since it's reasonable to populate boards with different USB sockets). It also updates two peripheral controller drivers to use these: - fsl_usb2_udc, mostly OTG-related bugfixes: non-OTG devices must follow the rules about drawing VBUS power, and OTG ones need to reject invalid SET_FEATURE requests. - omap_udc, just scrubbing a bit of #ifdeffery. And also gadgetfs, which lost some #ifdefs and moved to a more standard handling of DEBUG and VERBOSE_DEBUG. The main benefits come from patches which will follow. Signed-off-by:
-
Nico Erfurth authored
This patch adds the new iowarrior module to the Makefile in drivers/usb. Currently the module isn't build unless another driver from usb/misc is selected. Signed-off-by:
Nico Erfurth <masta@perlgolf.de> Signed-off-by:
-
Alan Stern authored
This patch (as953) separates out three key portions from usb_hcd_submit_urb(), usb_hcd_unlink_urb(), and usb_hcd_giveback_urb() and puts them in separate functions of their own. In the next patch, these functions will be called directly by host controller drivers while holding their private spinlocks, which will remove the possibility of some unpleasant races. The code responsible for mapping and unmapping DMA buffers is also placed into a couple of separate subroutines, for the sake of cleanliness and consistency. Signed-off-by:
-
Alan Stern authored
This patch (as952) adjusts the spinlock usage in the root-hub emulation part of usbcore, to make it match more closely the pattern used by regular host controller drivers. To wit: The private lock (usb_hcd_root_hub_lock) is held throughout the important parts, and it is dropped temporarily without re-enabling interrupts around the call to usb_hcd_giveback_urb(). A nice side effect is that the code now avoids calling local_irq_save(), thereby becoming more RT-friendly. Signed-off-by:
-
