Currently HID layer only allows to remap keycodes for known usages,
and responds with -EINVAL when user tries to map new usage code.
This precludes us form relying on udev/keymap for establishing correct
mappings and forces us to write dummy HID drivers responsible only for
setting up keymaps.
Let's allow remapping not only usages that have been set up as keys
(usage->type == EV_KEY) but also yet-unmapped usages (usage->type == 0).
Input: ati_remote2 - switch to using new keycode interface
Switch the code to use new style of getkeycode and setkeycode
methods to allow retrieving and setting keycodes not only by
their scancodes but also by index.
Acked-by: Ville Syrjälä <syrjala@sci.fi> Tested-by: Jarod Wilson <jarod@wilsonet.com> Tested-by: Ville Syrjälä <syrjala@sci.fi> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Chris Bagwell [Sun, 12 Sep 2010 07:08:40 +0000 (00:08 -0700)]
Input: wacom - request tablet data for Bamboo Pens
Bamboo P&T need to use second form of usb_set_report() to
ask to report tablet data.
With previous addition of Bamboo Touch, BTN_TOOL_TRIPLETAP is now used
for both TABLETPC2FG and BAMBOO_PT types. So reduced check to
match type=TABLETPC2FG.
This change shows redundant check for !TABLETPC2FG in else statement.
Input: hid-input - switch to using new keycode interface
Switch HID code to use new style of getkeycode and setkeycode
methods to allow retrieving and setting keycodes not only by
their scancodes but also by index.
Input: media/IR - switch to using new keycode interface
Switch the code to use new style of getkeycode and setkeycode
methods to allow retrieving and setting keycodes not only by
their scancodes but also by index.
Input: sparse-keymap - switch to using new keycode interface
Switch sparse keymap library to use new style of getkeycode and
setkeycode methods to allow retrieving and setting keycodes not
only by their scancodes but also by index.
Several devices use a high number of bits for scancodes. One important
group is the Remote Controllers. Some new protocols like RC-6 define a
scancode space of 64 bits.
The current EVIO[CS]GKEYCODE ioctls allow replace the scancode/keycode
translation tables, but it is limited to up to 32 bits for scancode.
Also, if userspace wants to clean the existing table, replacing it by
a new one, it needs to run a loop calling the ioctls over the entire
sparse scancode space.
To solve those problems, this patch extends the ioctls to allow drivers
handle scancodes up to 32 bytes long (the length could be extended in
the future should such need arise) and allow userspace to query and set
scancode to keycode mappings not only by scancode but also by index.
Compatibility code were also added to handle the old format of
EVIO[CS]GKEYCODE ioctls.
Folded fixes by:
- Dan Carpenter: locking fixes for the original implementation
- Jarod Wilson: fix crash when setting keycode and wiring up get/set
handlers in original implementation.
- Dmitry Torokhov: rework to consolidate old and new scancode handling,
provide options to act either by index or scancode.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Henrik Rydberg [Sun, 5 Sep 2010 19:57:13 +0000 (12:57 -0700)]
Input: wacom - add a quirk for low resolution Bamboo devices
The Bamboo Touch reports a sub-screen resolution of 480x320. The
signal-to-noise ratio is only about 100, so filtering is needed in
order to reduce the jitter to a usable level. However, the low
resolution leads to round-off errors in the EWMA filter, resulting in
extremely jerky pointer motion. This patch explicitly sets a higher
resolution for those devices, and tells this to the completion handler
via a low-resolution quirk.
Henrik Rydberg [Sun, 5 Sep 2010 19:53:16 +0000 (12:53 -0700)]
Input: wacom - add support for the Bamboo Touch trackpad
Add support for the Bamboo Touch trackpad, and make it work with
both the Synaptics X Driver and the Multitouch X Driver. The device
uses MT slots internally, so the choice of protocol is a given.
Henrik Rydberg [Sun, 5 Sep 2010 19:25:11 +0000 (12:25 -0700)]
Input: wacom - add fuzz parameters to features
The signal-to-noise ratio varies between devices, but currently all
devices are treated the same way. Add fuzz parameters to the feature
struct, allowing for tailored treatment of devices.
Eric Millbrandt [Fri, 3 Sep 2010 17:31:05 +0000 (10:31 -0700)]
Input: wm97xx-core - add retries to wm97xx_read_aux_adc
Add logic to wm97xx_read_aux_adc() to retry reading the adc if the
sample failed. This could occur if the previous sample was still in
the return register or the sample timed-out. Also avoid a pathologic
failure mode by disabling the digitizer and returning -EBUSY after 5
retries.
Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Axel Lin [Fri, 3 Sep 2010 17:31:04 +0000 (10:31 -0700)]
Input: wm97xx-core - simplify error path in wm97xx_probe()
Use platform_device_del() instead of platform_device_unregister() in error
handling path.
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensoruce.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Andy Ross [Wed, 1 Sep 2010 06:00:41 +0000 (23:00 -0700)]
Staging: mrst-touchscreen - simplify en/disable of interrupts for NEC
Use 8 bit update commands instead of a 16 bit unaligned read/write
pair which fails after the first few calls; the voodoo in the original
doesn't seem to be required with this mechanism.
Tested-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andy Ross <andy.ross@windriver.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The touch screen driver tries to find a range of free channels (which
are an array of bytes), by scanning for the "end of used channel" marker.
However it tries to be WAAAAY too smart and does 32 bit logic on 8 bit
quantities, and in the process completely gets it wrong
(repeatedly read the same register instead of incrementing in the loop,
assuming that if any of the 4 bytes in the 32 byte quantity is free,
all four are free, returning the channel number divided by 4 rather than
the actual first free channel number)
On the setting side, the same mistakes are made by and large; changed
this to just use the byte SCU write functions....
With these fixes we go from a completely non detected touchscreen to
something that appears to completely get detected.
(after also fixing the ordering issue that Jacobs patch should solve)
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
- switch to use threaded IRQ
- more __devinit/__devexit annotations
- rely on input core to remove jitter from events
- global pointer removed
- NEC/MAXIM/Freescale handling factored out
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Kevin Wells [Sun, 29 Aug 2010 05:45:22 +0000 (22:45 -0700)]
Input: add LPC32xx touchscreen controller driver
This patch set introduces support for the LPC32xx touchscreen
controller driver. The LPC32xx touchscreen controller supports
automated event detection and X/Y data conversion for resistive
touchscreens.
Peter Hutterer [Sun, 29 Aug 2010 05:00:47 +0000 (22:00 -0700)]
Input: wacom_w8001 - add multitouch slot support
Some serial wacom devices support two-finger touch. Test for this during
init and parse the touch packets accordingly. Touch packets are
processed using Protocol B (MT Slots).
Note: there are several wacom versions that do touch but not two-finger
touch. These are not catered for here, touch events for these are simply
discarded.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Peter Hutterer [Sun, 29 Aug 2010 05:00:47 +0000 (22:00 -0700)]
Input: wacom_w8001 - support (and ignore) touch tablets
Tablets that support touch input may report different sized packages,
depending on the touch sensor in the tablet. For now, discard the
packages until we report them as touch input proper.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Peter Hutterer [Sun, 29 Aug 2010 05:00:05 +0000 (22:00 -0700)]
Input: wacom_w8001 - send BTN_TOOL_PEN/RUBBER and BTN_STYLUS events
The protocol used by the w8001 supports status fields for tip, side
switch and eraser as well as a RDY field for proximity.
The protocol has a double usage for the f2 bit in the packet. If set,
the data is either pen + side2 button or eraser. Assume eraser if the
device comes into proximity with the f2 bit set, otherwise trigger the
side2 button. If the device comes into proximity with the f2 bit and
that bit disappears afterwards, fake proximity out for the eraser and
proximity in for the pen.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Henrik Rydberg [Sun, 29 Aug 2010 04:33:50 +0000 (21:33 -0700)]
Input: MT - initialize slots to unused
For MT slots, the ABS_MT_TRACKING_ID determines whether a slot is in use,
but currently leaves initialization up to the drivers. This patch sets the
slot state to unused upon creation.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Arnd Bergmann [Sun, 29 Aug 2010 03:35:17 +0000 (20:35 -0700)]
Input: use PIT_TICK_RATE in vt beep ioctl
The KIOCSOUND and KDMKTONE ioctls are based on the CLOCK_TICK_RATE,
which is architecture and sometimes configuration specific.
In practice, most user applications assume that it is actually defined
as the i8253 PIT base clock of 1193182 Hz, which is true on some
architectures but not on others.
This patch makes the vt code use the PIT frequency on all
architectures, which is much more well-defined. It will change the
behavior of user applications sending the beep ioctl on all
architectures that define CLOCK_TICK_RATE different from
PIT_TICK_RATE.
The original breakage was introduced in commit bcc8ca099 "Adapt
drivers/char/vt_ioctl.c to non-x86". Hopefully, reverting this change
will make the frequency correct in more cases than it will make it
incorrect.
The data[6] byte contains either 1 or -1 depending on the whether the
mouse wheel on older wacom tablets is moved down (1) or up (-1). The
patch introduced in the above commit changed the cast from (signed char)
to (signed). When cast as a signed integer and negated, the value of -1
(stored in the byte as 0xff) became -255 rather than 1. This patch
reverts the cast to a (signed char) and also removes an unnecessary
(signed) cast, as all the values operated on are bitmasked.
Reported-by: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Kay Sievers [Thu, 19 Aug 2010 16:52:28 +0000 (09:52 -0700)]
Input: uinput - add devname alias to allow module on-demand load
Recent modprobe and udev versions allow to create device nodes
for modules which are not loaded. Only the first access will cause
the in-kernel module loader to pull-in the module. Systems which
never access the device node will not needlessly load the module,
and no longer need init scripts or other facilities to unconditionally
load it.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Linus Torvalds [Mon, 16 Aug 2010 00:37:07 +0000 (17:37 -0700)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
gcc-4.6: ACPI: fix unused but set variables in ACPI
ACPI thermal: make procfs I/F depend on CONFIG_ACPI_PROCFS
ACPI video: make procfs I/F depend on CONFIG_ACPI_PROCFS
ACPI processor: remove deprecated ACPI procfs I/F
ACPI power_resource: remove unused procfs I/F
ACPI: remove deprecated ACPI procfs I/F
ACPI: introduce drivers/acpi/sysfs.c
ACPI: introduce module parameter acpi.aml_debug_output
ACPI: introduce drivers/acpi/debugfs.c
ACPI, APEI, ERST debug support
ACPI, APEI, Manage GHES as platform devices
ACPI, APEI, Rename CPER and GHES severity constants
ACPI, APEI, Fix a typo of error path of apei_resources_request
ACPI / ACPICA: Fix reference counting problems with GPE handlers
ACPI: Add the check of ADR flag in course of finding ACPI handle for PCI device
ACPI / Sleep: Drop acpi_suspend_finish()
ACPI / Sleep: Consolidate suspend and hibernation routines
ACPI / Wakeup: Simplify enabling of wakeup devices
ACPI / Sleep: Rework enabling wakeup devices
ACPI / Sleep: Free NVS copy if suspending of devices fails
Fixed up totally buggered "ACPI: fix unused but set variables in ACPI"
patch that doesn't even compile in the merge.
Thanks to Sedat Dilek <sedat.dilek@googlemail.com> for noticing the
breakage before I even pulled. And a big "Grrr.." at Len for not even
bothering to compile the tree before asking me to pull.
Linus Torvalds [Mon, 16 Aug 2010 00:32:47 +0000 (17:32 -0700)]
Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6:
mtd/nand_ids: Fix buswidth
mtd/m25p80: fix test for end of loop
mtd/m25p80: retlen is never NULL
MIPS: Fix gen_nand probe structures contents
gen_nand: Test if nr_chips field is valid
BFIN: Fix gen_nand probe structures contents
nand/denali: move all hardware initialization work to denali_hw_init
nand/denali: Add a page check in denali_read_page & denali_read_page_raw
nand/denali: use cpu_relax() while waiting for hardware interrupt
nand/denali: change read_status function method
nand/denali: Fixed check patch warnings
ARM: Fix gen_nand probe structures contents
mtd/nand_base: fix kernel-doc warnings & typos
nand/denali: use dev_xx debug function to replace nand_dbg_print and some printk
nand/denali: Fixed handle ECC error bugs
nand/denali: use iowrite32() to replace denali_write32()
nand/denali: Fixed probe function bugs
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: don't validate CROSS_COMPILE needlessly
arch/tile: export only COMMAND_LINE_SIZE to userspace.
arch/tile: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN
arch/tile: Rename the hweight() implementations to __arch_hweight()
arch/tile: extend syscall ABI to set r1 on return as well.
arch/tile: Various cleanups.
arch/tile: support backtracing on TILE-Gx
arch/tile: Fix a couple of issues with the COMPAT code for TILE-Gx.
arch/tile: Use separate, better minsec values for clocksource and sched_clock.
arch/tile: correct a bug in freeing bootmem by VA for the optional second initrd.
arch: tile: mm: pgtable.c: Removed duplicated #include
arch: tile: kernel/proc.c Removed duplicated #include
Add fanotify syscalls to <asm-generic/unistd.h>.
arch/tile: support new kunmap_atomic() naming convention.
tile: remove unused ISA_DMA_THRESHOLD define
Conflicts in arch/tile/configs/tile_defconfig (pick the mainline version
with the reduced defconfig).
With this change, the arch/tile Makefile will only check for a valid
combination of CROSS_COMPILE vs "uname -m" for a few common targets
that are typically the ones we get wrong (vmlinux, all, and modules).
The change handles the case of an empty "make" goal like "make all".
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Linus Torvalds [Sun, 15 Aug 2010 18:35:52 +0000 (11:35 -0700)]
mm: fix up some user-visible effects of the stack guard page
This commit makes the stack guard page somewhat less visible to user
space. It does this by:
- not showing the guard page in /proc/<pid>/maps
It looks like lvm-tools will actually read /proc/self/maps to figure
out where all its mappings are, and effectively do a specialized
"mlockall()" in user space. By not showing the guard page as part of
the mapping (by just adding PAGE_SIZE to the start for grows-up
pages), lvm-tools ends up not being aware of it.
- by also teaching the _real_ mlock() functionality not to try to lock
the guard page.
That would just expand the mapping down to create a new guard page,
so there really is no point in trying to lock it in place.
It would perhaps be nice to show the guard page specially in
/proc/<pid>/maps (or at least mark grow-down segments some way), but
let's not open ourselves up to more breakage by user space from programs
that depends on the exact deails of the 'maps' file.
Special thanks to Henrique de Moraes Holschuh for diving into lvm-tools
source code to see what was going on with the whole new warning.
Reported-and-tested-by: François Valenduc <francois.valenduc@tvcablenet.be Reported-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 15 Aug 2010 18:22:00 +0000 (11:22 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: sound/usb/format: silence uninitialized variable warnings
MAINTAINERS: Add Ian Lartey as comaintaner for Wolfson devices
MAINTAINERS: Make Wolfson entry also cover CODEC drivers
ASoC: Only tweak WM8994 chip configuration on devices up to rev D
ASoC: Optimise DSP performance for WM8994
ALSA: hda - Fix dynamic ADC change working again
ALSA: hda - Restrict PCM parameters per ELD information over HDMI
sound: oss: sh_dac_audio.c removed duplicated #include
Linus Torvalds [Sun, 15 Aug 2010 18:17:52 +0000 (11:17 -0700)]
Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
intel_idle: recognize Lincroft Atom Processor
intel_idle: no longer EXPERIMENTAL
intel_idle: disable module support
intel_idle: add support for Westmere-EX
intel_idle: delete power_policy modparam, and choose substate functions
intel_idle: delete substates DEBUG modparam
Gcc complains that ret might be used uninitialized:
sound/usb/format.c: In function ‘snd_usb_parse_audio_format’:
sound/usb/format.c:354: warning: ‘ret’ may be used uninitialized in this function
sound/usb/format.c:354: note: ‘ret’ was declared here
sound/usb/format.c:414: warning: ‘ret’ may be used uninitialized in this function
sound/usb/format.c:414: note: ‘ret’ was declared here
I suppose it could be uninitialized if there is ever a UAC_VERSION_3
released. Anyway this patch is worthwhile if only to silence the gcc
warning.
Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
ACPI video: make procfs I/F depend on CONFIG_ACPI_PROCFS
Mark ACPI video driver procfs I/F deprecated, including:
/proc/acpi/video/*/info
/proc/acpi/video/*/DOS
/proc/acpi/video/*/ROM
/proc/acpi/video/*/POST
/proc/acpi/video/*/POST_info
/proc/acpi/video/*/*/info
/proc/acpi/video/*/*/state
/proc/acpi/video/*/*/EDID
and
/proc/acpi/video/*/*/brightness, because
1. we already have the sysfs I/F /sysclass/backlight/ as the replacement
of /proc/acpi/video/*/*/brightness.
2. the other procfs I/F is not useful for userspace.
Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
code for ACPI sysfs I/F, including
#ifdef ACPI_DEBUG
/sys/module/acpi/parameters/debug_layer
/sys/module/acpi/parameters/debug_level
/sys/module/acpi/parameters/trace_method_name
/sys/module/acpi/parameters/trace_debug_layer
/sys/module/acpi/parameters/trace_debug_level
/sys/module/acpi/parameters/trace_state
#endif
/sys/module/acpi/parameters/acpica_version
/sys/firmware/acpi/tables/
/sys/firmware/acpi/interrupts/
is moved to this file.
No function change in this patch.
Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Huang Ying [Thu, 12 Aug 2010 03:55:17 +0000 (11:55 +0800)]
ACPI, APEI, ERST debug support
This patch adds debugging/testing support to ERST. A misc device is
implemented to export raw ERST read/write/clear etc operations to user
space. With this patch, we can add ERST testing support to
linuxfirmwarekit ISO (linuxfirmwarekit.org) to verify the kernel
support and the firmware implementation.
Signed-off-by: Huang Ying <ying.huang@intel.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/cleanup:
defconfig reduction
kbuild: drop unifdef-y support
archs: replace unifdef-y with header-y
include: replace unifdef-y with header-y
Randy Dunlap [Sat, 14 Aug 2010 20:05:57 +0000 (13:05 -0700)]
fusion: add function parameter names to kernel-doc
Fix fusion missing kernel-doc:
Warning(drivers/message/fusion/mptbase.c:649): No description found for parameter 'func_name'
Warning(drivers/message/fusion/mptbase.c:8010): No description found for parameter 'cb_idx'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 14 Aug 2010 21:57:58 +0000 (14:57 -0700)]
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: (22 commits)
hwmon: (via-cputemp) Remove bogus "SHOW" global variable
hwmon: jc42 depends on I2C
hwmon: (pc87427) Add a maintainer
hwmon: (pc87427) Move sysfs file removal to a separate function
hwmon: (pc87427) Add temperature monitoring support
hwmon: (pc87427) Add support for the second logical device
hwmon: (pc87427) Add support for manual fan speed control
hwmon: (pc87427) Minor style cleanups
hwmon: (pc87427) Handle disabled fan inputs properly
hwmon: (w83627ehf) Add support for W83667HG-B
hwmon: (w83627ehf) Driver cleanup
hwmon: Add driver for SMSC EMC2103 temperature monitor and fan controller
hwmon: Remove in[0-*]_fault from sysfs-interface
hwmon: Add 4 current alarm/beep attributes to sysfs-interface
hwmon: Add 3 critical limit attributes to sysfs-interface
hwmon: (asc7621) Clean up and improve detect function
hwmon: (it87) Export labels for internal sensors
hwmon: (lm75) Add suspend/resume feature
hwmon: (emc1403) Add power support
hwmon: (ltc4245) Expose all GPIO pins as analog voltages
...
projects / linux-beck.git / log