Commit Graph

2172 Commits

Author SHA1 Message Date
Linus Torvalds a21c1ea656 power supply and reset changes for the v4.1 series
* new API for safe access of power supply function attrs
  * devres support for power supply (un)registration
  * new drivers / chips
   - generic syscon based poweroff driver
   - iio & charger driver for da9150
   - fuel gauge driver for axp288
   - bq27x00: add support for bq27510
   - bq2415x: add support for bq24157s
  * twl4030-madc-battery: convert to iio consumer
  * misc fixes
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Merge tag 'for-v4.1' of git://git.infradead.org/battery-2.6

Pull power supply and reset changes from Sebastian Reichel:

 - new API for safe access of power supply function attrs

 - devres support for power supply (un)registration

 - new drivers / chips:
     - generic syscon based poweroff driver
     - iio & charger driver for da9150
     - fuel gauge driver for axp288
     - bq27x00: add support for bq27510
     - bq2415x: add support for bq24157s

 - twl4030-madc-battery: convert to iio consumer

 - misc fixes

* tag 'for-v4.1' of git://git.infradead.org/battery-2.6: (66 commits)
  power: twl4030_madc_battery: Add missing MODULE_ALIAS
  power: twl4030-madc-battery: Convert to iio consumer.
  dt: power: Add docs for generic SYSCON poweroff driver.
  power: reset: Add generic SYSCON register mapped poweroff.
  power: max17042_battery: add missed blank
  power: max17042_battery: Use reg type instead of chip type
  power/reset: at91: big endian fixes for atsama5d3x
  power_supply: charger-manager: Fix dereferencing of ERR_PTR
  HID: input: Fix NULL pointer dereference when power_supply_register fails
  power: constify of_device_id array
  power/reset/rmobile-reset.c: Fix !HAS_IOMEM build
  power_supply: 88pm860x_charger: Fix possible NULL pointer dereference and use of initialized variable
  arm: mach-pxa: Decrement the power supply's device reference counter
  mfd: ab8500: Decrement the power supply's device reference counter
  power_supply: bq2415x_charger: Decrement the power supply's device reference counter
  power_supply: 88pm860x_charger: Decrement the power supply's device reference counter
  x86/olpc/xo15/sci: Use newly added power_supply_put API
  x86/olpc/xo1/sci: Use newly added power_supply_put API
  power_supply: charger-manager: Decrement the power supply's device reference counter
  power_supply: Increment power supply use counter when obtaining references
  ...
2015-04-13 15:21:34 -07:00
Krzysztof Kozlowski fbea947c7d HID: input: Fix NULL pointer dereference when power_supply_register fails
Do not call power_supply_powers() if power_supply_register() failed
earlier. This fixes possible NULL pointer dereference by
power_supply_powers() in such case.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-03-24 13:38:16 +01:00
Benjamin Tissoires e2c7d8877e HID: wacom: check for wacom->shared before following the pointer
486b908 (HID: wacom: do not send pen events before touch is up/forced out)
introduces a kernel oops when plugging a tablet without touch.

wacom->shared is null for these devices so this leads to a null pointer
exception.

Change the condition to make it clear that what we need is wacom->shared
not NULL.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-03-17 20:59:55 +01:00
Forest Wilkinson 9b028649b9 HID: tivo: enable all buttons on the TiVo Slide Pro remote
The linux kernel has supported the TiVo Slide remote control for some time, but
does not recognize the USB ID of the newer Slide Pro. This patch adds the
missing data structures so the newer remote will be recognized by the driver,
thereby allowing the TiVo, LiveTV, and Thumbs Up/Down buttons to be
mapped with a hwdb file.

Signed-off-by: Forest Wilkinson <web11.forest@tibit.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-03-15 10:04:27 -04:00
Krzysztof Kozlowski 297d716f62 power_supply: Change ownership from driver to core
Change the ownership of power_supply structure from each driver
implementing the class to the power supply core.

The patch changes power_supply_register() function thus all drivers
implementing power supply class are adjusted.

Each driver provides the implementation of power supply. However it
should not be the owner of power supply class instance because it is
exposed by core to other subsystems with power_supply_get_by_name().
These other subsystems have no knowledge when the driver will unregister
the power supply. This leads to several issues when driver is unbound -
mostly because user of power supply accesses freed memory.

Instead let the core own the instance of struct 'power_supply'.  Other
users of this power supply will still access valid memory because it
will be freed when device reference count reaches 0. Currently this
means "it will leak" but power_supply_put() call in next patches will
solve it.

This solves invalid memory references in following race condition
scenario:

Thread 1: charger manager
Thread 2: power supply driver, used by charger manager

THREAD 1 (charger manager)         THREAD 2 (power supply driver)
==========================         ==============================
psy = power_supply_get_by_name()
                                   Driver unbind, .remove
                                     power_supply_unregister()
                                     Device fully removed
psy->get_property()

The 'get_property' call is executed in invalid context because the driver was
unbound and struct 'power_supply' memory was freed.

This could be observed easily with charger manager driver (here compiled
with max17040 fuel gauge):

$ cat /sys/devices/virtual/power_supply/cm-battery/capacity &
$ echo "1-0036" > /sys/bus/i2c/drivers/max17040/unbind
[   55.725123] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[   55.732584] pgd = d98d4000
[   55.734060] [00000000] *pgd=5afa2831, *pte=00000000, *ppte=00000000
[   55.740318] Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
[   55.746210] Modules linked in:
[   55.749259] CPU: 1 PID: 2936 Comm: cat Tainted: G        W       3.19.0-rc1-next-20141226-00048-gf79f475f3c44-dirty #1496
[   55.760190] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[   55.766270] task: d9b76f00 ti: daf54000 task.ti: daf54000
[   55.771647] PC is at 0x0
[   55.774182] LR is at charger_get_property+0x2f4/0x36c
[   55.779201] pc : [<00000000>]    lr : [<c034b0b4>]    psr: 60000013
[   55.779201] sp : daf55e90  ip : 00000003  fp : 00000000
[   55.790657] r10: 00000000  r9 : c06e2878  r8 : d9b26c68
[   55.795865] r7 : dad81610  r6 : daec7410  r5 : daf55ebc  r4 : 00000000
[   55.802367] r3 : 00000000  r2 : daf55ebc  r1 : 0000002a  r0 : d9b26c68
[   55.808879] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   55.815994] Control: 10c5387d  Table: 598d406a  DAC: 00000015
[   55.821723] Process cat (pid: 2936, stack limit = 0xdaf54210)
[   55.827451] Stack: (0xdaf55e90 to 0xdaf56000)
[   55.831795] 5e80:                                     60000013 c01459c4 0000002a c06f8ef8
[   55.839956] 5ea0: db651000 c06f8ef8 daebac00 c04cb668 daebac08 c0346864 00000000 c01459c4
[   55.848115] 5ec0: d99eaa80 c06f8ef8 00000fff 00001000 db651000 c027f25c c027f240 d99eaa80
[   55.856274] 5ee0: d9a06c00 c0146218 daf55f18 00001000 d99eaa80 db4c18c0 00000001 00000001
[   55.864468] 5f00: daf55f80 c0144c78 c0144c54 c0107f90 00015000 d99eaab0 00000000 00000000
[   55.872603] 5f20: 000051c7 00000000 db4c18c0 c04a9370 00015000 00001000 daf55f80 00001000
[   55.880763] 5f40: daf54000 00015000 00000000 c00e53dc db4c18c0 c00e548c 0000000d 00008124
[   55.888937] 5f60: 00000001 00000000 00000000 db4c18c0 db4c18c0 00001000 00015000 c00e5550
[   55.897099] 5f80: 00000000 00000000 00001000 00001000 00015000 00000003 00000003 c000f364
[   55.905239] 5fa0: 00000000 c000f1a0 00001000 00015000 00000003 00015000 00001000 0001333c
[   55.913399] 5fc0: 00001000 00015000 00000003 00000003 00000002 00000000 00000000 00000000
[   55.921560] 5fe0: 7fffe000 be999850 0000a225 b6f3c19c 60000010 00000003 00000000 00000000
[   55.929744] [<c034b0b4>] (charger_get_property) from [<c0346864>] (power_supply_show_property+0x48/0x20c)
[   55.939286] [<c0346864>] (power_supply_show_property) from [<c027f25c>] (dev_attr_show+0x1c/0x48)
[   55.948130] [<c027f25c>] (dev_attr_show) from [<c0146218>] (sysfs_kf_seq_show+0x84/0x104)
[   55.956298] [<c0146218>] (sysfs_kf_seq_show) from [<c0144c78>] (kernfs_seq_show+0x24/0x28)
[   55.964536] [<c0144c78>] (kernfs_seq_show) from [<c0107f90>] (seq_read+0x1b0/0x484)
[   55.972172] [<c0107f90>] (seq_read) from [<c00e53dc>] (__vfs_read+0x18/0x4c)
[   55.979188] [<c00e53dc>] (__vfs_read) from [<c00e548c>] (vfs_read+0x7c/0x100)
[   55.986304] [<c00e548c>] (vfs_read) from [<c00e5550>] (SyS_read+0x40/0x8c)
[   55.993164] [<c00e5550>] (SyS_read) from [<c000f1a0>] (ret_fast_syscall+0x0/0x48)
[   56.000626] Code: bad PC value
[   56.011652] ---[ end trace 7b64343fbdae8ef1 ]---

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

[for the nvec part]
Reviewed-by: Marc Dietrich <marvin24@gmx.de>

[for compal-laptop.c]
Acked-by: Darren Hart <dvhart@linux.intel.com>

[for the mfd part]
Acked-by: Lee Jones <lee.jones@linaro.org>

[for the hid part]
Acked-by: Jiri Kosina <jkosina@suse.cz>

[for the acpi part]
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-03-13 23:15:51 +01:00
Krzysztof Kozlowski 2dc9215d7c power_supply: Move run-time configuration to separate structure
Add new structure 'power_supply_config' for holding run-time
initialization data like of_node, supplies and private driver data.

The power_supply_register() function is changed so all power supply
drivers need updating.

When registering the power supply this new 'power_supply_config' should be
used instead of directly initializing 'struct power_supply'. This allows
changing the ownership of power_supply structure from driver to the
power supply core in next patches.

When a driver does not use of_node or supplies then it should use NULL
as config. If driver uses of_node or supplies then it should allocate
config on stack and initialize it with proper values.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Pavel Machek <pavel@ucw.cz>

[for the nvec part]
Reviewed-by: Marc Dietrich <marvin24@gmx.de>

[for drivers/platform/x86/compal-laptop.c]
Reviewed-by: Darren Hart <dvhart@linux.intel.com>

[for drivers/hid/*]
Reviewed-by: Jiri Kosina <jkosina@suse.cz>

Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-03-13 23:15:12 +01:00
oliver@neukum.org a415457733 HID: add ALWAYS_POLL quirk for a Logitech 0xc007
This device disconnects every 60s without X

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-03-11 12:12:37 -04:00
Ping Cheng e0d41fd435 HID: wacom: rely on actual touch down count to decide touch_down
touch_down is a flag to indicate if there are touches on tablet
or not. Since one set of touch events may be posted over more
than one data packet/touch frame, and pen may come in proximity
while touch events are partially sent, counting all touch events
for the set reflects the actual status of touch_down.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-03-03 00:27:10 +01:00
Ping Cheng 486b908d44 HID: wacom: do not send pen events before touch is up/forced out
If pen comes in proximity while touch is down, we force touch up
before sending pen events. Otherwise, there can be unfinished
touch events compete with pen events. This idea has been fully
implemented for Tablet PCs. But other tablets that support both
pen and touch are not fully considered.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-03-03 00:27:09 +01:00
Jakub Sitnicki ef567cf9dd HID: microsoft: Add ID for NE7K wireless keyboard
Microsoft Natural Wireless Ergonomic Keyboard 7000 has special My
Favorites 1..5 keys which are handled through a vendor-defined usage
page (0xff05).

Apply MS_ERGONOMY quirks handling to USB PID 0x071d (Microsoft Microsoft
2.4GHz Transceiver V1.0) so that the My Favorites 1..5 keys are reported
as KEY_F14..18 events.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=52841
Signed-off-by: Jakub Sitnicki <jsitnicki@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 15:28:40 +01:00
Seth Forshee 6d00f37e49 HID: i2c-hid: Limit reads to wMaxInputLength bytes for input events
d1c7e29e8d (HID: i2c-hid: prevent buffer overflow in early IRQ)
changed hid_get_input() to read ihid->bufsize bytes, which can be
more than wMaxInputLength. This is the case with the Dell XPS 13
9343, and it is causing events to be missed. In some cases the
missed events are releases, which can cause the cursor to jump or
freeze, among other problems. Limit the number of bytes read to
min(wMaxInputLength, ihid->bufsize) to prevent such problems.

Fixes: d1c7e29e8d "HID: i2c-hid: prevent buffer overflow in early IRQ"
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 15:10:04 +01:00
Frank Praznik b94993f6fb HID: sony: fix uninitialized per-controller spinlock
Per-controller spinlock needs to be properly initialized during device probe.

[jkosina@suse.cz: massage changelog]
[jkosina@suse.cz: drop hunk that has already been applied by previous
 patch]
Signed-off-by: Frank Praznik <frank.praznik@oh.rr.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 13:01:15 +01:00
Jiri Kosina 8b402c929d HID: sony: initialize sony_dev_list_lock properly
sony_dev_list_lock spinlock (which was introduced in d2d782fcce ("HID: sony:
Prevent duplicate controller connections") is not being initialized properly.
Fix that.

Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-23 11:15:44 +01:00
Antonio Ospite 6c40065fc1 HID: sony: Fix a WARNING shown when rmmod-ing the driver
ida_destroy() must be called _after_ all the devices have been
unregistered; otherwise, when calling "rmmod hid_sony" with devices
still plugged in, the following warning would show up because of calls
to ida_simple_remove() on a destroyed ID allocator:

------------[ cut here ]------------
WARNING: CPU: 0 PID: 5509 at lib/idr.c:1052 ida_simple_remove+0x26/0x50()
ida_remove called for id=0 which is not allocated.
Modules linked in: ...
CPU: 0 PID: 5509 Comm: rmmod Not tainted 3.19.0-rc6-ao2 #35
Hardware name: System manufacturer System Product Name/M2N-MX SE, BIOS 0501    03/20/2008
 0000000000000000 ffffffff8176320d ffffffff815b3a88 ffff880036f7fdd8
 ffffffff8106ce01 0000000000000000 ffffffffa07658e0 0000000000000246
 ffff88005077d8b8 ffff88005077d8d0 ffffffff8106ce7a ffffffff81763260
Call Trace:
 [<ffffffff815b3a88>] ? dump_stack+0x40/0x50
 [<ffffffff8106ce01>] ? warn_slowpath_common+0x81/0xb0
 [<ffffffff8106ce7a>] ? warn_slowpath_fmt+0x4a/0x50
 [<ffffffff812ccb86>] ? ida_simple_remove+0x26/0x50
 [<ffffffffa0762dc8>] ? sony_remove+0x58/0xe0 [hid_sony]
 [<ffffffffa00fff15>] ? hid_device_remove+0x65/0xd0 [hid]
 [<ffffffff8140425e>] ? __device_release_driver+0x7e/0x100
 [<ffffffff81404c70>] ? driver_detach+0xa0/0xb0
 [<ffffffff81403ee5>] ? bus_remove_driver+0x55/0xe0
 [<ffffffffa01000ff>] ? hid_unregister_driver+0x2f/0xa0 [hid]
 [<ffffffff810e45bf>] ? SyS_delete_module+0x1bf/0x270
 [<ffffffff81014089>] ? do_notify_resume+0x69/0xa0
 [<ffffffff815b952d>] ? system_call_fastpath+0x16/0x1b
---[ end trace bc794b3d22c30ede ]---

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Acked-by: Frank Praznik <frank.praznik@oh.rr.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-18 21:18:22 +01:00
Srinivas Pandruvada ed11977095 HID: sensor-hub: correct dyn_callback_lock IRQ-safe change
Commit 0ccf091d1f ("HID: sensor-hub:
make dyn_callback_lock IRQ-safe) was supposed to change locks
in sensor_hub_get_callback(), but missed.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-17 13:34:45 +01:00
Darren Salt afe98939b3 HID: saitek: add USB ID for older R.A.T. 7
Signed-off-by: Darren Salt <devspam@moreofthesa.me.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-17 13:28:00 +01:00
Mika Westerberg f2de746c3f HID: i2c-hid: The interrupt should be level sensitive
The Microsoft HID over I2C specification says two things regarding the
interrupt:

 1) The interrupt should be level sensitive
 2) The device keeps the interrupt asserted as long as it has more reports
    available.

We've seen that at least some Atmel and N-Trig panels keep the line low as
long as they have something to send. The current version of the driver only
detects the first edge but then fails to read rest of the reports (as the
line is still asserted).

Make the driver follow the specification and configure the HID interrupt to
be level sensitive.

The Windows HID over I2C driver also seems to do the same.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-17 13:23:13 +01:00
Ping Cheng a7e6645ee3 HID: wacom: Add missing ABS_MISC event and feature declaration for 27QHD
27QHD has the same x_min/y_min (WACOM_CINTIQ_OFFSET) as other Cintiqs.

ABS_MISC event is required for PAD packet to work properly with
xf86-input-wacom.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-02-12 11:47:37 +01:00
Jiri Kosina 988b7fb0bf Merge branches 'for-3.19/upstream-fixes', 'for-3.20/apple', 'for-3.20/betop', 'for-3.20/lenovo', 'for-3.20/logitech', 'for-3.20/rmi', 'for-3.20/upstream' and 'for-3.20/wacom' into for-linus 2015-02-09 11:17:45 +01:00
Ping Cheng 500d4160ab HID: wacom: add support for Cintiq 27QHD and 27QHD touch
These devices have accelerometers. To report accelerometer coordinates, a new
property, INPUT_PROP_ACCELEROMETER, is added.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-29 14:05:05 +01:00
Ping Cheng a2f71c6c87 HID: wacom: consolidate input capability settings for pen and touch
After PAD moved to its own interface, there were duplicated statements in
wacom_setup_pentouch_input_capabilities. Merge them together to reduce future
maintenance effort.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-29 14:05:04 +01:00
Ping Cheng 9b61aa864a HID: wacom: make sure touch arbitration is applied consistently
stylus_in_proximity is used to make sure no touch event is sent while pen is in
proximity. touch_down is used to make sure a touch up event is sent when pen
comes into proximity while touch is down.

Two touch routines didn't store touch_down. One touch routine forgot to check
stylus_in_proximity before sending touch events. This patch fixes those issues.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-29 14:05:04 +01:00
Jim Keir afd700d933 HID: pidff: Fix initialisation forMicrosoft Sidewinder FF Pro 2
The FF2 driver (usbhid/hid-pidff.c) sends commands to the stick during ff_init.
However, this is called inside a block where driver_input_lock is locked, so
the results of these initial commands are discarded. This behavior is the
"killer", without this nothing else works.

ff_init issues commands using "hid_hw_request". This eventually goes to
hid_input_report, which returns -EBUSY because driver_input_lock is locked. The
change is to delay the ff_init call in hid-core.c until after this lock has
been released.

Calling hid_device_io_start() releases the lock so the device can be
configured.  We also need to call hid_device_io_stop() on exit for the lock to
remain locked while ending the init of the drivers.

[ benjamin.tissoires@redhat.com: imrpoved the changelog a lot ]

Signed-off-by: Jim Keir <jimkeir@oracledbadirect.com>
Reviewed-by: Benjamin.tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-26 21:26:30 +01:00
Nicholas Mc Guire 3458e4c0e5 HID: hyperv: match wait_for_completion_timeout return type
The return type of wait_for_completion_timeout is unsigned long not
int. This patch fixes up the declarations only.

Patch was compile tested only for x86_64_defconfig + CONFIG_X86_VSMP=y
CONFIG_HYPERV=m, CONFIG_HID_HYPERV_MOUSE=m

Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-26 14:25:41 +01:00
Jason Gerecke 33e5df0e0e HID: wacom: Report ABS_MISC event for Cintiq Companion Hybrid
It appears that the Cintiq Companion Hybrid does not send an ABS_MISC event to
userspace when any of its ExpressKeys are pressed. This is not strictly
necessary now that the pad exists on its own device, but should be fixed for
consistency's sake.

Traditionally both the stylus and pad shared the same device node, and
xf86-input-wacom would use ABS_MISC for disambiguation. Not sending this causes
the Hybrid to behave incorrectly with xf86-input-wacom beginning with its
8f44f3 commit.

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-23 15:06:24 +01:00
Michal Marek 86312e4b78 HID: Use Kbuild idiom in Makefiles
Use <driver>-$(CONFIG_FOO) syntax to build multipart objects with
optional parts, since all the config options are bool. Also, delete the
obvious comments in the usbhid Makefile.

Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-21 22:23:20 +01:00
Kristian Evensen a8c8316b11 HID: do not bind to Microchip Pick16F1454
The Microchip Pick16F1454 is exported as a HID device and is used by for
example the Yepkit YKUSH three-port switchable USB hub. However, it is not an
actual HID-device. On the Yepkit, it is used to power up/down the ports on the
hub. The HID driver should ignore this device.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-20 20:13:25 +01:00
Vivien Didelot 2f1cec3250 HID: hid-lg4ff: use DEVICE_ATTR_RW macro
Use the DEVICE_ATTR_RW macro to reduce boiler plate and move the
attribute declaration to get rid of function signatures.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-19 13:58:47 +01:00
Vivien Didelot fcf80e597c HID: hid-lg4ff: fix sysfs attribute permission
There is no reason to set the range attribute executable to the user and
group, and writable to the group. Fix the permission to 0644.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-19 13:58:47 +01:00
Ping Cheng b3bd7ef397 HID: wacom: peport In Range event according to the spec
Some Cintiq and Intuos tablets report In Range event. This event is sent before
valid data is reported when tool enters proximity; or before out of proximity
event is reported when tool exits.

While entering proximity, In Range means a pen is detected. This information
can be used for palm/touch rejection on both pen and touch enabled devices.
While exiting, it means the tool has reached its maximum detectable distance.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-12 10:16:32 +01:00
Ping Cheng 373a5356df HID: wacom: process invalid Cintiq and Intuos data in wacom_intuos_inout()
Users may use unsupported tools on Cintiq or Intuos. When invalid tools or data
are detected, they should be ignored. That is, no event from those tools should
be reported.

Consolidating that code in wacom_intuos_inout simplifies the logic and make it
easier for future code change.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-12 10:16:32 +01:00
Andrew Duggan e9287099ba HID: rmi: Add support for the touchpad in the Razer Blade 14 laptop
Have hid-rmi handle all of the Razer Blade HID devices that are part of the
composite USB device. This will allow hid-rmi to operate the touchpad in rmi
mode while passing events from the other devices to hid-input.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-12 10:12:00 +01:00
Andrew Duggan 79364d87af HID: rmi: Support touchpads with external buttons
The external buttons on HID touchpads are connected as pass through devices and
button events are not reported in the rmi registers. As a result on these
devices we need to allow the HID generic desktop button events to be processed
by hid-input. Unfortunately, there is no way to query the touchpad to determine
that it has pass through buttons so the RMI_DEVICE_HAS_PHYS_BUTTONS should be
set manually when adding the device to rmi_id[].

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-12 10:12:00 +01:00
Andrew Duggan b8aed6ea39 HID: rmi: Use hid_report_len to compute the size of reports
Now that hid_report_len is in hid.h we can use this function instead of
duplicating the code which computes it.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-12 10:11:59 +01:00
Dan Carpenter 606185b20c HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
This is a static checker fix.  We write some binary settings to the
sysfs file.  One of the settings is the "->startup_profile".  There
isn't any checking to make sure it fits into the
pyra->profile_settings[] array in the profile_activated() function.

I added a check to pyra_sysfs_write_settings() in both places because
I wasn't positive that the other callers were correct.

Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-09 14:41:01 +01:00
Benjamin Tissoires 005b3f574a HID: logitech-hidpp: store the name of the device in struct hidpp
If a disconnect occurs while getting the actual name of the device
(which can take several HID transactions), the name of the device will
be the hid name, provided by the Unifying Receiver.
This means that in some cases, the user space will see a different
name that what it usually sees when there is no disconnect.

We should store the name of the device in the struct hidpp. That way,
if a disconnect occurs while we are accessing the name,
hidpp_connect_event() can fail, and the input node is not created.

The input node will be created only if we have a connection which
lasts long enough to retrieve all the requested information:
name, protocol, and specific configuration.

Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Tested-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-09 11:29:39 +01:00
Alan Wu 5e7e9e90b5 HID: microsoft: add support for Japanese Surface Type Cover 3
Based on code for the US Surface Type Cover 3
from commit be3b16341d
("HID: add support for MS Surface Pro 3 Type Cover"):

Signed-off-by: Alan Wu <alan.c.wu@gmail.com>
Tested-by: Karlis Dreizis <karlisdreizis@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-07 10:12:51 +01:00
Jiri Kosina 8e7b341037 HID: fixup the conflicting keyboard mappings quirk
The ignore check that got added in 6ce901eb61 ("HID: input: fix confusion
on conflicting mappings") needs to properly check for VARIABLE reports
as well (ARRAY reports should be ignored), otherwise legitimate keyboards
might break.

Cc: <stable@vger.kernel.org>
Fixes: 6ce901eb61 ("HID: input: fix confusion on conflicting mappings")
Reported-by: Fredrik Hallenberg <megahallon@gmail.com>
Reported-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-06 22:40:13 +01:00
Ross Skaliotis cbd366bea2 HID: apple: fix battery support for the 2009 ANSI wireless keyboard
Enabled quirks necessary for correct battery capacity reporting. Cleaned up
surrounding style.

Signed-off-by: Ross Skaliotis <rskaliotis@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-06 22:21:30 +01:00
Geert Uytterhoeven 79bc33bd60 HID: fix Kconfig text
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-06 22:19:43 +01:00
David Herrmann 6ce901eb61 HID: input: fix confusion on conflicting mappings
On an PC-101/103/104 keyboard (American layout) the 'Enter' key and its
neighbours look like this:

           +---+ +---+ +-------+
           | 1 | | 2 | |   5   |
           +---+ +---+ +-------+
             +---+ +-----------+
             | 3 | |     4     |
             +---+ +-----------+

On a PC-102/105 keyboard (European layout) it looks like this:

           +---+ +---+ +-------+
           | 1 | | 2 | |       |
           +---+ +---+ +-+  4  |
             +---+ +---+ |     |
             | 3 | | 5 | |     |
             +---+ +---+ +-----+

(Note that the number of keys is the same, but key '5' is moved down and
 the shape of key '4' is changed. Keys '1' to '3' are exactly the same.)

The keys 1-4 report the same scan-code in HID in both layouts, even though
the keysym they produce is usually different depending on the XKB-keymap
used by user-space.
However, key '5' (US 'backslash'/'pipe') reports 0x31 for the upper layout
and 0x32 for the lower layout, as defined by the HID spec. This is highly
confusing as the linux-input API uses a single keycode for both.

So far, this was never a problem as there never has been a keyboard with
both of those keys present at the same time. It would have to look
something like this:

           +---+ +---+ +-------+
           | 1 | | 2 | |  x31  |
           +---+ +---+ +-------+
             +---+ +---+ +-----+
             | 3 | |x32| |  4  |
             +---+ +---+ +-----+

HID can represent such a keyboard, but the linux-input API cannot.
Furthermore, any user-space mapping would be confused by this and,
luckily, no-one ever produced such hardware.

Now, the HID input layer fixed this mess by mapping both 0x31 and 0x32 to
the same keycode (KEY_BACKSLASH==0x2b). As only one of both physical keys
is present on a hardware, this works just fine.

Lets introduce hardware-vendors into this:
------------------------------------------

Unfortunately, it seems way to expensive to produce a different device for
American and European layouts. Therefore, hardware-vendors put both keys,
(0x31 and 0x32) on the same keyboard, but only one of them is hooked up
to the physical button, the other one is 'dead'.
This means, they can use the same hardware, with a different button-layout
and automatically produce the correct HID events for American *and*
European layouts. This is unproblematic for normal keyboards, as the
'dead' key will never report any KEY-DOWN events. But RollOver keyboards
send the whole matrix on each key-event, allowing n-key roll-over mode.
This means, we get a 0x31 and 0x32 event on each key-press. One of them
will always be 0, the other reports the real state. As we map both to the
same keycode, we will get spurious key-events, even though the real
key-state never changed.

The easiest way would be to blacklist 'dead' keys and never handle those.
We could simply read the 'country' tag of USB devices and blacklist either
key according to the layout. But... hardware vendors... want the same
device for all countries and thus many of them set 'country' to 0 for all
devices. Meh..

So we have to deal with this properly. As we cannot know which of the keys
is 'dead', we either need a heuristic and track those keys, or we simply
make use of our value-tracking for HID fields. We simply ignore HID events
for absolute data if the data didn't change. As HID tracks events on the
HID level, we haven't done the keycode translation, yet. Therefore, the
'dead' key is tracked independently of the real key, therefore, any events
on it will be ignored.

This patch simply discards any HID events for absolute data if it didn't
change compared to the last report. We need to ignore relative and
buffered-byte reports for obvious reasons. But those cannot be affected by
this bug, so we're fine.

Preferably, we'd do this filtering on the HID-core level. But this might
break a lot of custom drivers, if they do not follow the HID specs.
Therefore, we do this late in hid-input just before we inject it into the
input layer (which does the exact same filtering, but on the keycode
level).

If this turns out to break some devices, we might have to limit filtering
to EV_KEY events. But lets try to do the Right Thing first, and properly
filter any absolute data that didn't change.

This patch is tagged for 'stable' as it fixes a lot of n-key RollOver
hardware. We might wanna wait with backporting for a while, before we know
it doesn't break anything else, though.

Cc: <stable@vger.kernel.org>
Reported-by: Adam Goode <adam@spicenitz.org>
Reported-by: Fredrik Hallenberg <megahallon@gmail.com>
Tested-by: Fredrik Hallenberg <megahallon@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-06 22:18:13 +01:00
Benjamin Tissoires 61e9e7e40a HID: wacom: add support of the Pen of the Bamboo Pad
Bamboo Pads are using the generic processing but their report descriptors
differ from the ISDv* line. The pen fields are marked with the .physical
as Digitizer_Pen, which makes also sense.

Add this field to the checks and enable for free Bamboo Pads.

Reported-by: Josep Sanchez Ferreres <josep.sanchez.ferreres@est.fib.upc.edu>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-06 10:08:44 +01:00
Benjamin Tissoires d97a552210 HID: wacom: use WACOM_*_FIELD macros in wacom_usage_mapping()
We introduced nice macros in wacom_wac.c to check whether a field is
a pen or a touch one.

wacom_usage_mapping() still uses it's own tests, which are not in sync with
the wacom_wac tests (.application is not checked).

That means that some legitimate fields might be filtered out from the
usage mapping, and thus will not be used properly while receiving the
events.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-01-06 10:08:44 +01:00
Giedrius Statkevičius 2bacedada6 HID: Add a new id 0x501a for Genius MousePen i608X
New Genius MousePen i608X devices have a new id 0x501a instead of the
old 0x5011 so add a new #define with "_2" appended and change required
places.

The remaining two checkpatch warnings about line length
being over 80 characters are present in the original files too and this
patch was made in the same style (no line break).

Just adding a new id and changing the required places should make the
new device work without any issues according to the bug report in the
following url.

This patch was made according to and fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=67111

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-29 11:12:37 +01:00
Jiri Kosina 52cd7785f3 HID: betop: add drivers/hid/hid-betopff.c
Commit fc38a8a66e ("HID: add BETOP game controller force feedback support")
is missing the actual addition of drivers/hid/hid-betopff.c due to my
mistake (I forgot to add the file after fixing conflicts).

Fixes: fc38a8a66e ("HID: add BETOP game controller force feedback support")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-22 15:00:25 +01:00
Huang Bo fc38a8a66e HID: add BETOP game controller force feedback support
Adds force feedback support for BETOP USB game controllers.
These devices are mass produced in China.

Signed-off-by: Huang Bo <huangbobupt@163.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-22 14:42:39 +01:00
Andrew Duggan 2f43de605e HID: rmi: Support non rmi devices by passing events to hid-input
Allowing hid-rmi to bind to non rmi devices allows us to support composite USB
devices which contain several HID devices one of which is a HID touchpad.
Since all of the devices have the same VID and PID we can add the device
to the hid_have_special_driver list and have hid-rmi handle all of the devices.
Then hid-rmi's probe can look for the rmi specific HID report IDs and decide if
it should handle the device as a rmi device or simply report that the events
needs additional processing.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-22 14:22:57 +01:00
Benjamin Tissoires a0e625f8b7 HID: logitech-hidpp: prefix the name with "Logitech"
Current names are reported as "K750", "M705", and it can be misleading
for the users when they look at their input device list.

Prefixing the names with "Logitech " makes things better.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-19 11:53:05 +01:00
Peter Wu 8abd820503 HID: logitech-hidpp: avoid unintended fall-through
Add a return to avoid a fall-through. Introduced in commit
57ac86cf52 ("HID: logitech-hidpp: add
support of the first Logitech Wireless Touchpad").

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-19 11:45:36 +01:00
Peter Wu f677bb150c HID: logitech-hidpp: detect HID++ 2.0 errors too
Devices speaking HID++ 2.0 report a different error code (0xff). Detect
these errors too to avoid 5 second delays when the device reports an
error. Caught by... well, a bug in the QEMU emulation of this receiver.

Renamed fap to rap for HID++ 1.0 errors because it is more logical,
it has no functional difference.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-19 11:44:11 +01:00