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* [PATCH] Generic HID layer - pb_fnmodeJiri Kosina2006-12-08
| | | | | | | | | | | | pb_fnmode parameter has to be passed to usbhid, both for compatibility reasons and also because it logically belongs there. Also removes empty hid-input.c file in drivers/usb/input. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Generic HID layer - input and event reportingJiri Kosina2006-12-08
| | | | | | | | | | | hid_input_report() was needlessly USB-specific in USB HID. This patch makes the function independent of HID implementation and fixes all the current users. Bluetooth patches comply with this prototype. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Generic HID layer - hiddevJiri Kosina2006-12-08
| | | | | | | | | | | | | - hiddev is USB-only (agreed with Marcel Holtmann that Bluetooth currently doesn't need it, and future planned interface (rawhid) will be more flexible and usable) - both HID and USB-hid can be now compiled as modules (wasn't possible before hiddev was fully separated from generic HID layer) Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Generic HID layer - USB APIJiri Kosina2006-12-08
| | | | | | | | | | | | | | | | | | - 'dev' in struct hid_device changed from struct usb_device to struct device and fixed all the users - renamed functions which are part of USB HID API from 'hid_*' to 'usbhid_*' - force feedback initialization moved from common part into USB-specific driver - added usbhid.h header for USB HID API users - removed USB-specific fields from struct hid_device and moved them to new usbhid_device, which is pointed to by hid_device->driver_data - fixed all USB users to use this new structure Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Generic HID layer - APIJiri Kosina2006-12-08
| | | | | | | | | | | | | - fixed generic API (added neccessary EXPORT_SYMBOL, fixed hid.h to provide correct prototypes) - extended hid_device with open/close/event function pointers to driver-specific functions - added driver specific driver_data to hid_device Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Generic HID layer - code splitJiri Kosina2006-12-08
| | | | | | | | | | The "big main" split of USB HID code into generic HID code and USB-transport specific HID handling. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Generic HID layer - disable USB HIDJiri Kosina2006-12-08
| | | | | | | | | | | | | This patch is a part of generic HID layer introduction. USB HID is disabled, so that the code split and changes could be introduced in a way that is reviewable (i.e. separate patches), but not to break git bisect by uncompilable kernel throughout different stages of the code splitup and changes. The last patch of this series enables HID again. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Dmitry Torokhov2006-12-08
|\ | | | | | | | | | | Conflicts: drivers/usb/input/hid.h
| * [PATCH] slab: remove SLAB_KERNELChristoph Lameter2006-12-07
| | | | | | | | | | | | | | | | SLAB_KERNEL is an alias of GFP_KERNEL. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] slab: remove SLAB_ATOMICChristoph Lameter2006-12-07
| | | | | | | | | | | | | | | | SLAB_ATOMIC is an alias of GFP_ATOMIC Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * Merge branch 'master' of ↵David Howells2006-12-05
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/infiniband/core/iwcm.c drivers/net/chelsio/cxgb2.c drivers/net/wireless/bcm43xx/bcm43xx_main.c drivers/net/wireless/prism54/islpci_eth.c drivers/usb/core/hub.h drivers/usb/input/hid-core.c net/core/netpoll.c Fix up merge failures with Linus's head and fix new compilation failures. Signed-Off-By: David Howells <dhowells@redhat.com>
| | * USB: hid-core: canonical defines for Apple USB device IDsJulien BLACHE2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use canonical defines for the Apple USB device IDs. Also add the Geyser IV devices missing in my previous patch. Signed-off-by: Julien BLACHE <jb@jblache.org> Acked-by: Dmitry Torokhov <dtor@insightbb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * usbtouchscreen: add support for DMC TSC-10/25 devicesHolger Schurig2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support for the DMC TSC-10 and TSC-25 usb touchscreen controllers. Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * usb: usbkbd free urb cleanupMariusz Kozlowski2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | - usb_free_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * usb: hid-core free urb cleanupMariusz Kozlowski2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | - usb_free_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * usb: ati_remote2 free urb cleanupMariusz Kozlowski2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hello, - usb_free_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * usb: ati_remote free urb cleanupMariusz Kozlowski2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | - usb_free_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: make drivers/usb/input/wacom_sys.c:wacom_sys_irq() staticAdrian Bunk2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the needlessly global wacom_sys_irq() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: yealink: Use usb_endpoint_* functionsLuiz Fernando N. Capitulino2006-12-01
| | | | | | | | | | | | | | | | | | Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: usbmouse: Use usb_endpoint_* functionsLuiz Fernando N. Capitulino2006-12-01
| | | | | | | | | | | | | | | | | | Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: usbkbd: Use usb_endpoint_* functionsLuiz Fernando N. Capitulino2006-12-01
| | | | | | | | | | | | | | | | | | Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB: hid-core: Use usb_endpoint_* functionsLuiz Fernando N. Capitulino2006-12-01
| | | | | | | | | | | | | | | | | | Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * USB HID: Handle STALL on interrupt endpointAlan Stern2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The USB HID driver doesn't include any code to handle a STALL on the interrupt endpoint. While this may be uncommon, it does happen sometimes. This patch (as805) adds a fix. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * [PATCH] usb: ati remote memleak fixMariusz Kozlowski2006-11-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a bug. When checking for ati_remote->outbuf we free freeing ati_remote->inbuf so we end up freeing ati_remote->inbuf twice. Also the checks for 'ati_remote->inbuf != NULL' and 'ati_remote->outbuf != NULL' are redundant as usb_buffer_free() does this. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Acked-by: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | WorkStruct: make allyesconfigDavid Howells2006-11-22
| |/ | | | | | | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
| * USB: hid-core: Add quirk for new Apple keyboard/trackpadJulien BLACHE2006-11-16
| | | | | | | | | | | | | | | | | | | | | | The new Core2 Duo MacBook Pro have a new keyboard+trackpad device. The following patch adds the needed HID quirk for the Fn key. Signed-off-by: Julien BLACHE <jb@jblache.org> Signed-off-by: Vojtech Pavlik <vojtech@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * USB: correct keymapping on Powerbook built-in USB ISO keyboardsOlaf Hering2006-11-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | similar to the version in adbhid_input_register(): The '<>' key and the '^°' key on a german keyboard is swapped. Provide correct keys to userland, external USB keyboards will not work correctly when the 'badmap'/'goodmap' workarounds from xkeyboard-config are used. It is expected that distributions drop the badmap/goodmap part from keycodes/macintosh in the xkeyboard-config package. This is probably 2.6.18.x material, if major distros settle on 2.6.18. Signed-off-by: Olaf Hering <olh@suse.de> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | Input: appletouch - use canonical names in USB IDsJulien BLACHE2006-11-17
| | | | | | | | | | | | | | | | Small readability improvement for appletouch: use canonical names instead of raw USB IDs for some of the devices. Signed-off-by: Julien BLACHE <jb@jblache.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* | Input: appletouch - add Geyser IV supportJulien BLACHE2006-11-17
| | | | | | | | | | | | | | | | | | | | | | | | The new Core2 Duo MacBook Pro has a new keyboard+trackpad named "Geyser IV". According to the Info.plist in the OS X kext, it looks like the Geyser IV trackpad is identical to the Geyser III trackpad: same IOClass (AppleUSBGrIIITrackpad), same acceleration tables. Signed-off-by: Julien BLACHE <jb@jblache.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* | Input: appletouch - verious updates for MacBooksJason Parekh2006-11-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change a bit the finger detection method used by the appletouch driver to reduce touchpad "jumpiness": - Adjust the method for detecting multiple fingers. Previously, it recognized a new finger when a low sensor reading is followed by a high sensor reading. The new method checks for 'humps' in the sensor readings, so there doesn't necessarily have to be a low sensor between two high sensors for two fingers to be triggered. This allows detecting presence of two fingers on the touchpad even when they touch each other. - Change absolute coordinate calculation to us to get rid of "jumps". Instead of using full value from a sensor once it passes the threshold subtract theshold value from the reading. - Allow adjusting threshold value via module parameter. The patch doesn't seem to affect the Powerbooks but does greatly improve the touchpad behaviour on the MacBooks. Signed-off-by: Jason Parekh <jasonparekh@gmail.com> Signed-off-by: Stelian Pop <stelian@popies.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* | Input: HID - add a quirk for the Logitech USB ReceiverAnssi Hannula2006-11-04
|/ | | | | | | | | | | | | | | | | | | | | | | | | Logitech USB Receiver (046d:c101) has two interfaces. The first one contains fields from HID_UP_KEYBOARD and HID_UP_LED, and the other one contains fields from HID_UP_CONSUMER and HID_UP_LOGIVENDOR. This device is used with multiple wireless Logitech products, including UltraX Media Remote. All fields on both interfaces are either keys or leds. All fields in the first interface are marked as Absolute, while the fields in the second interface are marked as Relative. Marking the keys as relative causes hidinput_hid_event() to send release events right after key press events. The device has EV_REP set, so the userspace expects the device to send repeat events if a key is held down. However, as hidinput_hid_event() sends release events immediately, repeat events are not sent at all. In fact, the userspace has no way of knowing if a key is being held down. Fix this by adding a quirk for 046d:c101 which changes relative keys to absolute ones. Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
* USB: xpad: additional USB id's addedDominic Cerquetti2006-11-03
| | | | | | | | | | Adding additional USB vendor/product ID's for XBOX pads provided by the XBOX Linux team. Signed-off-by: Dominic Cerquetti <binary1230@yahoo.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: HID: add blacklist AIRcable USB, little beautificationNaranjo Manuel Francisco2006-11-03
| | | | | | | | | | | | This patch add AIRcable USBto USB-HID blacklist, makes some little changes things in the Kconfig to make AIRcable USB look as all the rest of drivers. And it removes the readme part that was on Documentation/usb/usb-serial.txt because it is not needed anymore. Signed-off-by: Naranjo Manuel Francisco <naranjo.manuel@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usbtouchscreen: use endpoint address from endpoint descriptorDaniel Ritz2006-11-03
| | | | | | | | | | | | use the endpoint address from the endpoint descriptor instead of the hardcoding it to 0x81. at least some ITM based screen use a different address and don't work without this. Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Cc: Ralf Lehmann <ralf@lehmann.cc> Cc: J.P. Delport <jpdelport@csir.co.za> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* hid-core: big-endian fix fixGrant Grundler2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adam Kropelin had posted 32-bit fix in June 2005 about two weeks after I originally had posted my fixes for big endian support. Adam has a UPS device which reports LINEV using 32-bits. Added comments to describe the limitations of the code. extract() is the same version I posted earlier and tested in user space. Made similar changes to implement() routine. I've written (and will shortly post) a test for implement(). Code tested on C3600 (parisc) with USB keyboard/mouse attached. I've dropped test_implement.c and a few other user space test programs on http://iou.parisc-linux.org/~grundler/tests/ -rw-r--r-- 1 grundler grundler 1750 Oct 18 09:13 test_extract.c -rw-r--r-- 1 grundler grundler 561 Jan 25 2006 test_ffs.c -rw-r--r-- 1 grundler users 7175 Apr 8 2005 test_fls.c -rw-r--r-- 1 grundler grundler 206 Sep 1 15:52 test_gettimeofday.c -rw-r--r-- 1 grundler grundler 1886 Oct 19 09:20 test_implement.c -rw-r--r-- 1 grundler users 2707 Jun 4 2005 test_unaligned.c I would appreciate if someone else would look at the output of test_implement.c to make it does The Right Thing. Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Dmitry Torokhov <dtor@mail.ru> Acked-By: Adam Kropelin <akropel1@rochester.rr.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [hid-core] TurboX Keyboard needs NOGET quirk.Ben Collins2006-10-18
| | | | Signed-off-by: Ben Collins <bcollins@ubuntu.com>
* usbtouchscreen: fix data reading for ITM touchscreensDaniel Ritz2006-10-17
| | | | | | | | | ITM devices seem to report only garbage when not touched. update usbtouchscreen to do data reading like itmtouch. also fix wrong mask on pressure bits. Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: xpad: dance pad supportDominic Cerquetti2006-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | Adds support for dance pads to the xpad driver. Dance pads require the d-pad to be mapped to four buttons instead of two axes, so that combinations of up/down and left/right can be hit simultaneously. Known dance pads are detected, and there is a module parameter added to default unknown xpad devices to map the d-pad to buttons if this is desired. (dpad_to_buttons). Minor modifications were made to port the changes in the original patch to a newer kernel version. This patch was originally from Dominic Cerquetti originally written for kernel 2.6.11.4, with minor modifications (API changes for USB, spelling fixes to the documentation added in the original patch) made to apply to the current kernel. I have modified Dominic's original patch per some suggestions from Dmitry Torokhov. (There was nothing in the patch format description about multiple From: lines, so I haven't added myself.) [akpm@osdl.org: cleanups] Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: input: extract() and implement() are bit field manipulation routinesGrant Grundler2006-10-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | extract() and implement() have brain damaged attempts to handle 32-bit wide "fields". The problem is the index math in the original code didn't clear all the relevant bits. (offset >> 5) only compensated for 32-bit index. We need (offset >> 6) if we want to use 64-bit loads. But it was also wrong in that it tried to use quasi-aligned loads. Ie "report" was only incremented in multiples of 4 bytes and then the offset was masked off for values greater than 4 bytes. The right way is to pretend "report" points at a byte array. And offset is then only minor adjustment for < 8 bits of offset. "n" (field width) can then be as big as 24 (assuming 32-bit loads) since "offset" will never be bigger than 7. If someone needs either function to handle more than 24-bits, please document why - point at a specification or specific USB hid device - in comments in the code. extract/implement() are also an eyesore to read. Please banish whoever wrote it to read CodingStyle 3 times in a row to a classroom full of 1st graders armed with rubberbands. Or just flame them. Whatever. Globbing all the code together on two lines does NOT make it faster and is Just Wrong. I've tested this patch on j6000 (dual 750Mhz PA-RISC, 32-bit 2.6.12-rc5). Kyle McMartin tested on c3000 (up 400Mhz PA-RISC, same kernel). "p2-mate" (Peter De Schrijver?) tested on sb1250 (dual core Mips, broadcom "swarm" eval board). Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Matthew Wilcox <matthew@wil.cx> Cc: Vojtech Pavlik <vojtech@suse.cz> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: move trancevibrator.c to the proper usb directoryGreg Kroah-Hartman2006-10-17
| | | | | | | | | | It's not a input driver, so it doesn't belong in the input directory. Cc: Sam Hocevar <sam@zoy.org> Cc: Dmitry Torokhov <dtor@insightbb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: fix use after free in wacom_sys.cEric Sesterhenn2006-10-17
| | | | | | | | | | | the following commit added a use after free http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3D3bea733ab21247290bd552dd6a2cd3049af9adef Found by coverity (cid #1441) Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: "Ping Cheng" <pingc@wacom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: BUG_ON conversion for wacom.cEric Sesterhenn2006-10-17
| | | | | | | | | | | this patch converts two if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Acked-by: "Ping Cheng" <pingc@wacom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Wacom driver updatesPing Cheng2006-10-17
| | | | | | | | | This fixes some issues with the current wacom driver due to the split of the driver into different pieces and adds support for the Intuos3 4x6 Signed-off-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [PATCH] itmtouch: fix inverted flag to indicate touch location correctly, ↵Mark Assad2006-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | correct white space There is a bug in the current version of the itmtouch USB touchscreen driver. The if statment that checks if pressure is being applied to the touch screen is now missing a ! (not), so events are no longer being reported correctly. The original source code for this line was as follows: #define UCP(x) ((unsigned char*)(x)) #define UCOM(x,y,z) ((UCP((x)->transfer_buffer)[y]) & (z)) ... if (!UCOM(urb, 7, 0x20)) { And was cleaned to: unsigned char *data = urb->transfer_buffer; .... if (data[7] & 0x20) { (note the lack of '!') This has been tested on an LG L1510BF and an LG1510SF touch screen. Signed-off-by: Mark Assad <massad@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove all inclusions of <linux/config.h>Dave Jones2006-10-04
| | | | | | kbuild explicitly includes this at build time. Signed-off-by: Dave Jones <davej@redhat.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2006-10-02
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits) Input: wistron - add support for Acer TravelMate 2424NWXCi Input: wistron - fix setting up special buttons Input: add KEY_BLUETOOTH and KEY_WLAN definitions Input: add new BUS_VIRTUAL bus type Input: add driver for stowaway serial keyboards Input: make input_register_handler() return error codes Input: remove cruft that was needed for transition to sysfs Input: fix input module refcounting Input: constify input core Input: libps2 - rearrange exports Input: atkbd - support Microsoft Natural Elite Pro keyboards Input: i8042 - disable MUX mode on Toshiba Equium A110 Input: i8042 - get rid of polling timer Input: send key up events at disconnect Input: constify psmouse driver Input: i8042 - add Amoi to the MUX blacklist Input: logips2pp - add sugnature 56 (Cordless MouseMan Wheel), cleanup Input: add driver for Touchwin serial touchscreens Input: add driver for Touchright serial touchscreens Input: add driver for Penmount serial touchscreens ...
| * Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Dmitry Torokhov2006-09-19
| |\
| * | Input: hid - #if 0 the no longer used hid_find_field_by_usage()Adrian Bunk2006-08-04
| | | | | | | | | | | | | | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
| * | Input: add force feedback driver for PSX-style Zeroplus devicesAnssi Hannula2006-07-19
| | | | | | | | | | | | | | | Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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