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path: root/drivers/hid/hid-magicmouse.c
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* HID: magicmouse: sanity check report size in raw_event() callbackJiri Kosina2014-08-271-0/+10
| | | | | | | | | | The report passed to us from transport driver could potentially be arbitrarily large, therefore we better sanity-check it so that magicmouse_emit_touch() gets only valid values of raw_id. Cc: stable@vger.kernel.org Reported-by: Steven Vittitoe <scvitti@google.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: replace hid_output_raw_report with hid_hw_raw_request for feature requestsBenjamin Tissoires2014-02-171-2/+2
| | | | | | | | | | | | ret = hid_output_raw_report(A, B, C, HID_FEATURE_REPORT); is equivalent to ret = hid_hw_raw_request(A, B[0], B, C, HID_FEATURE_REPORT, HID_REQ_SET_REPORT); whatever the transport layer is. So use the new API where available Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: introduce helper to access hid_output_raw_report()Benjamin Tissoires2014-02-171-1/+1
| | | | | | | | | | | | | | | | | Add a helper to access hdev->hid_output_raw_report(). To convert the drivers, use the following snippets: for i in drivers/hid/*.c do sed -i.bak "s/[^ \t]*->hid_output_raw_report(/hid_output_raw_report(/g" $i done Then manually fix for checkpatch.pl Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
*-. Merge branches 'for-3.12/devm', 'for-3.12/i2c-hid', 'for-3.12/i2c-hid-dt', ↵Jiri Kosina2013-09-061-15/+4
|\ \ | | | | | | | | | 'for-3.12/logitech', 'for-3.12/multitouch-win8', 'for-3.12/trasnport-driver-cleanup', 'for-3.12/uhid', 'for-3.12/upstream' and 'for-3.12/wiimote' into for-linus
| | * HID: replace strict_strtoul() with kstrtoul()Jingoo Han2013-07-231-1/+1
| |/ |/| | | | | | | | | | | | | | | The usage of strict_strtoul() is not preferred, because strict_strtoul() is obsolete. Thus, kstrtoul() should be used. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * HID: trivial devm conversion for special hid driversBenjamin Tissoires2013-07-311-14/+3
|/ | | | | | | | | | | | | | | | | | | It is safe to use devres allocation within the hid subsystem: - the devres release is called _after_ the call to .remove(), meaning that no freed pointers will exists while removing the device - if a .probe() fails, devres releases all the allocated ressources before going to the next driver: there will not be ghost ressources attached to a hid device if several drivers are probed. Given that, we can clean up a little some of the HID drivers. These ones are trivial: - there is only one kzalloc in the driver - the .remove() callback contains only one kfree on top of hid_hw_stop() - the error path in the probe is easy enough to be manually checked Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
*-. Merge branches 'for-3.10/appleir', 'for-3.10/hid-debug', ↵Jiri Kosina2013-04-301-1/+0
|\ \ | | | | | | | | | 'for-3.10/hid-driver-transport-cleanups', 'for-3.10/i2c-hid' and 'for-3.10/logitech' into for-linus
| * | HID: Kconfig: Remove explicit transport layer dependenciesBenjamin Tissoires2013-02-251-1/+0
| |/ | | | | | | | | | | | | | | | | | | Most HID drivers (rightfully) only depend on the HID bus, not the specific transport layer. Remove such dependencies where applicable. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Acked-by: Henrik Rydberg <rydberg@euromail.se> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* / HID: magicmouse: fix race between input_register() and probe()Benjamin Tissoires2013-04-041-9/+20
|/ | | | | | | | | | | | | | | | | | | | Since kernel 3.7, it appears that the input registration occured before the end of magicmouse_setup_input(). This is shown by receiving a lot of "EV_SYN SYN_REPORT 1" instead of normal "EV_SYN SYN_REPORT 0". This value means that the output buffer is full, and the user space is loosing events. Using .input_configured guarantees that the race is not occuring, and that the call of "input_set_events_per_packet(input, 60)" is taken into account by input_register(). Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=908604 Cc: stable@vger.kernel.org Reported-and-Tested-By: Clarke Wixon <cwixon@usa.net> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: Use module_hid_driver macroH Hartley Sweeten2013-01-031-18/+1
| | | | | | | | | | | | Use the new module_hid_driver macro in all HID drivers that have a simple register/unregister init/exit. This also converts the hid drivers that test for a failure of hid_register_driver() and report the failure. Using module_hid_driver in those drivers removes the failure message. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Input: MT - Add flags to input_mt_init_slots()Henrik Rydberg2012-09-191-1/+1
| | | | | | | | | | Preparing to move more repeated code into the mt core, add a flags argument to the input_mt_slots_init() function. Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Tested-by: Ping Cheng <pingc@wacom.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
* HID: magicmouse: Implement Multi-touch Protocol B (MT-B)Yufeng Shen2012-07-041-44/+22
| | | | | | | | | | | | | | | | | The driver for Apple Magic Trackpad/Mouse currently uses Multi-touch Protocol A (MT-A) to report touch events and uses ABS_MT_TRACKING_ID to do finger tracking. The fact of the device being able to track individual finger makes it possible to report touch events using MT-B. This patch converts the driver to use MT-B as it is preferred to MT-A. V4: Removed BTN_TOUCH evnet. V3: Removed the single touch related logic. V2: Converting entirely to MT-B as Henrik Rydberg suggested. Signed-off-by: Yufeng Shen <miletus@chromium.org> Reviewed-and-tested-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: Removing report_touches switchYufeng Shen2012-07-041-50/+45
| | | | | | | | | | | | Remove the report_touches switch as it is not so useful to turn off reporting touch events for a touch device. Let the userspace to do the filtering if the turning off is needed. V2: Remove report_touches as suggeted by Chase Douglas Signed-off-by: Yufeng Shen <miletus@chromium.org> Reviewed-and-tested-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: Correct report range of major / minor axesYufeng Shen2012-06-251-2/+4
| | | | | | | | | | | | In patch "HID: magicmouse: Adjust major / minor axes to scale", touch_major and touch_minor axes are scaled by a factor of four when reported but the max touch_major/minor is not scaled accordingly. This patch scales the max touch_major/minor to be consistent with the reported value. Signed-off-by: Yufeng Shen <miletus@chromium.org> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: hid-magicmouse: Add pointer and buttonpad properties for Magic TrackpadChase Douglas2012-02-211-0/+2
| | | | | Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: hid-magicmouse: Magic Trackpad has 1 button, not 2Daniel van Vugt2011-10-211-0/+7
| | | | | | | | | | | | | | | | | | | hid-magicmouse was advertising the Apple Magic Trackpad as having 2 buttons (left and right) when it actually only has 1 button. Advertising multiple buttons makes Xorg disable all button 2 and 3 emulation (using multi-finger clicks). So Xorg users don't get working right/middle-click emulation out of the box. This patch makes hid-magicmouse correctly only report one real button for Magic Trackpad, which in turn makes Xorg enable multi-finger click support to emulate right/middle buttons. [http://launchpad.net/bugs/862094] Signed-off-by: Daniel van Vugt <vanvugt@gmail.com> Reviewed-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: ignore 'ivalid report id' while switching modes, v2Jiri Kosina2011-08-251-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is basically a more generic respin of 23746a6 ("HID: magicmouse: ignore 'ivalid report id' while switching modes") which got reverted later by c3a492. It turns out that on some configurations, this is actually still the case and we are not able to detect in runtime. The device reponds with 'invalid report id' when feature report switching it into multitouch mode is sent to it. This has been silently ignored before 0825411ade ("HID: bt: Wait for ACK on Sent Reports"), but since this commit, it propagates -EIO from the _raw callback . So let the driver ignore -EIO as response to 0xd7,0x01 report, as that's how the device reacts in normal mode. Sad, but following reality. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=35022 Reported-by: Chase Douglas <chase.douglas@canonical.com> Reported-by: Jaikumar Ganesh <jaikumarg@android.com> Tested-by: Chase Douglas <chase.douglas@canonical.com> Tested-by: Jaikumar Ganesh <jaikumarg@android.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: Set resolution of touch surfacesChase Douglas2011-08-101-10/+46
| | | | | | | | | | | | | Add touch surface resolution information. The size of the touch surfaces has been determined to the hundredth of a mm. Cc: Jiri Kosina <jkosina@suse.cz> Cc: Michael Poole <mdpoole@troilus.org> Cc: linux-input@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Chase Douglas <chase.douglas@canonical.com> [jkosina@suse.cz: update comments and commit message] Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Revert "HID: magicmouse: ignore 'ivalid report id' while switching modes"Jiri Kosina2011-06-161-9/+1
| | | | | | | | | | | | | This reverts commit 23746a66d7d9e73402c68ef00d708796b97ebd72. It turned out that the actual reason for failure is not the device firmware, but bug in Bluetooth stack, which will be fixed by patch by Ville Tervo which corrects the mask handling for CSR 1.1 Dongles. Reported-and-tested-by: Ed Tomlinson <edt@aei.ca> Reported-and-tested-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
*-. Merge branches 'doc', 'multitouch', 'upstream' and 'upstream-fixes' into ↵Jiri Kosina2011-05-231-2/+12
|\ \ | | | | | | | | | for-linus
| | * HID: magicmouse: ignore 'ivalid report id' while switching modesJiri Kosina2011-05-201-1/+9
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The device reponds with 'invalid report id' when feature report switching it into multitouch mode is sent to it. This has been silently ignored before 0825411ade ("HID: bt: Wait for ACK on Sent Reports"), but since this commit, it propagates -EIO from the _raw callback . So let the driver ignore -EIO as response to 0xd7,0x01 report, as that's how the device reacts in normal mode. Sad, but following reality. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=35022 Tested-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds2011-04-071-1/+1
| |\ | | | | | | | | | | | | * 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
| | * Fix common misspellingsLucas De Marchi2011-03-311-1/+1
| |/ |/| | | | | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
| * HID: hid-magicmouse: Increase evdev buffer sizeChase Douglas2011-04-061-0/+2
|/ | | | | | | | | | | | | | | The evdev buffer isn't big enough when you get many fingers on the device. Bump up the buffer to a reasonable size, matching what other multitouch devices use. Without this change, events may be discarded in the evdev buffer before they are read. Reported-by: Simon Budig <simon@budig.de> Cc: Henrik Rydberg <rydberg@euromail.se> Cc: Jiri Kosina <jkosina@suse.cz> Cc: stable@kernel.org Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: hid-magicmouse: Correct touch orientation directionHenrik Rydberg2011-03-101-2/+2
| | | | | | | | | | | | | | | | | The magic trackpad and mouse both report touch orientation in opposite direction to the bcm5974 driver and what is written in Documents/input/multi-touch-protocol.txt. This patch reverts the direction, so that all in-kernel devices with this feature behave the same way. Since no known application has been utilizing this information yet, it seems appropriate also for stable. Cc: stable@kernel.org Cc: Michael Poole <mdpoole@troilus.org> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Acked-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Merge branches 'upstream' and 'upstream-fixes' into for-linusJiri Kosina2011-01-081-0/+5
|\
| * HID: magicmouse: Don't report REL_{X,Y} for Magic TrackpadChase Douglas2010-12-091-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | With the recent switch to having the hid layer handle standard axis initialization, the Magic Trackpad now reports relative axes. This would be fine in the normal mode, but the driver puts the device in multitouch mode where no relative events are generated. Also, userspace software depends on accurate axis information for device type detection. Thus, ignoring the relative axes from the Magic Trackpad is best. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | HID: Add and use hid_<level>: dev_<level> equivalentsJoe Perches2010-12-101-7/+8
|/ | | | | | | | | | | | | | | | | | | | | | | | | Neaten current uses of dev_<level> by adding and using hid specific hid_<level> macros. Convert existing uses of dev_<level> uses to hid_<level>. Convert hid-pidff printk uses to hid_<level>. Remove err_hid and use hid_err instead. Add missing newlines to logging messages where necessary. Coalesce format strings. Add and use pr_fmt(fmt) KBUILD_MODNAME ": " fmt Other miscellaneous changes: Add const struct hid_device * argument to hid-core functions extract() and implement() so hid_<level> can be used by them. Fix bad indentation in hid-core hid_input_field function that calls extract() function above. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: Adjust major / minor axes to scaleHenrik Rydberg2010-10-011-2/+2
| | | | | | | | | | | | | By visual inspection, the reported touch_major and touch_minor axes are roughly a factor of four too small. The factor is approximate, since the protocol is not known and the HID report encodes touch size with fewer bits than positions. This patch scales the reported values by a factor of four. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: Use hid-input parsing rather than bypassing itMichael Poole2010-09-241-63/+18
| | | | | | | | | Let the HID core handle input device setup and HID-compliant reports. This driver then only has to worry about the non-standard reports. Signed-off-by: Michael Poole <mdpoole@troilus.org> Acked-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: enable Magic Trackpad supportChase Douglas2010-09-031-39/+153
| | | | | | | | | | | | | | | | | | | | | | The trackpad speaks a similar, but different, protocol from the magic mouse. However, only small code tweaks here and there are needed to make basic multitouch work. Extra logic is required for single-touch emulation of the touchpad. The changes made here take the approach that only one finger may emulate the single pointer when multiple fingers have touched the screen. Once that finger is raised, all touches must be raised before any further single touch events can be sent. Sometimes the magic trackpad sends two distinct touch reports as one big report. Simply splitting the packet in two and resending them through magicmouse_raw_event ensures they are handled properly. I also added myself to the copyright statement. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: simplify touch data bit manipulationChase Douglas2010-09-031-12/+13
| | | | | | | | | | | | | | The new format should be easier to read to determine which bits correspond to which data. It also brings all the manipulation logic to the top of the function. This makes size and orientation reading more clear. Note that the impetus for this change is the forthcoming support for the Magic Trackpad, which has a different touch data protocol. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: simplify multitouch feature requestChase Douglas2010-09-031-12/+4
| | | | | | | | | | Only the first feature request is required to put the Magic Mouse into multitouch mode. This is also the case for the Magic Trackpad, for which support will be added in a later commit. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: remove timestamp logicChase Douglas2010-09-021-11/+7
| | | | | | | | | | The timestamps from the device are currently stored in the private data structure. These aren't used, so remove them. I've left a comment detailing the protocol for future reference. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: simplify touch down logicChase Douglas2010-09-021-18/+9
| | | | | | | | | | For the MT protocol, we need to properly keep track of each down touch. This change simplifies the logic, and should make things easier when support for the Magic Trackpad is added. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: Correct parsing of large X and Y motions.Michael Poole2010-07-111-2/+2
| | | | | | | | | | The X and Y values have two more significant bits in the same byte that contains click status. Include these in the reported value. Thanks to Iain Hibbert of NetBSD for pointing this out. Signed-off-by: Michael Poole <mdpoole@troilus.org> Acked-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: report last touch upChase Douglas2010-07-111-2/+20
| | | | | | | | | | | | The evdev multitouch protocol requires that a last MT sync event must be sent after all touches are up. This change adds the last MT sync event to the hid-magicmouse driver. Also, don't send events when a touch leaves. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: enable horizontal scrollingChase Douglas2010-06-241-6/+19
| | | | | | | Mimicks OS X behavior. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: add param for scroll speedChase Douglas2010-06-241-15/+28
| | | | | | | | | | | | | | | | | | | | | The new scroll_speed param takes an integer value from 0 to 63, where 0 is slowest and 63 is fastest. The default of 32 remains the same. This parameter also affects scroll acceleration linearly. A second part of this change is a tightly coupled modification to the scroll acceleration. Previously, scroll acceleration could be reset without lifting the scroll finger. This is rather unintuitive and hard to control in the case where a user wants faster scrolling, but wants to hold the scroll touch for longer than a moment. Note that scroll acceleration levels are now 1-7, where 7 is slowest. In the previous implementation, there were 8 levels defined, but it was impossible to start at the slowest level. In order to keep the default scroll speed unchanged, only 7 levels are used now. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: properly account for scroll movement in stateChase Douglas2010-06-241-1/+2
| | | | | | | | | | | Before this change, sequential scroll events would take a variable amount of movement due to incorrect accounting. This change ensures all scroll movements require a deterministic touch movement for an action to occur. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: disable and add module param for scroll accelerationChase Douglas2010-06-041-1/+7
| | | | | | | | | | | Scroll acceleration is unique to the magicmouse driver, and is unintuitive to a user who is unaware of the functionality. Thus, disable it by default, but add a module parameter to enable it for power users who want it. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: scroll on entire surface, not just middle of mouseChase Douglas2010-06-041-3/+2
| | | | | | | | | | | | Previously, scroll events only occurred when the user moved a touch along the middle of the touch surface. This is unintuitive for a normal user who is not aware of this. The device has a uniform surface, so the distinction is artificial. This change removes the touch area check for a scroll event, which replicates the OS X behavior. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: fix input registrationJiri Kosina2010-05-121-1/+4
| | | | | | | | | | | | | | | | | When HIDRAW is not set, hid_hw_start() returns ENODEV as no subsystem has claimed the magicmouse device, and probe routine bails out. Which is not what we want. This happens because magicmouse driver is instantiating the connection to Input subsystem itself, and since commit 28918c211d86b ("HID: magicmouse: fix oops after device removal") the HID core is not registering input device itself. Fix this by letting HID core register the input device (so that hid_hw_start() succeeds, as the device is claimed by at least one subsystem) and de-register it again later before proceeding with proper input setup. Reported-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* HID: magicmouse: fix oops after device removalMichael Poole2010-03-091-2/+5
| | | | | | | | | Ask the HID core not to register an input device for the mouse. Fix an oops after removing the device, due to leaving the new input device registered. Signed-off-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: magicmouse: coding style and probe failure fixesMichael Poole2010-02-111-60/+40
| | | | | | | | | | | Use proper values to initialize bool configuration variables, tabs rather than spaces, no braces for one-line else clause, __set_bit() when the operation doesn't have to be atomic, input_set_abs_params() rather than writing the fields directly, and call hid_hw_stop() when appropriate to handle failures in the probe. Signed-off-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: add a device driver for the Apple Magic Mouse.Michael Poole2010-02-101-0/+469
The Magic Mouse requires that a driver send an unlock Report(Feature) command, similar to the Wacom wireless tablet and Sixaxis controller quirks. This turns on an Input Report that isn't published in the input Report descriptor that contains touch data (and usually overrides the normal motion and click Report). Because the mouse has only one switch and no scroll wheel, the driver (under control of parameters) emulates a middle button and scroll wheel. User space could also ignore and/or re-synthesize those events based on the reported events. Some user-space tools to talk to the mouse directly (that is, when it is not associated with the host's HIDP stack) are at http://github.com/entrope/linux-magicmouse Signed-off-by: Michael Poole <mdpoole@troilus.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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