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2019-01-09HID: sony: Fix SHANWAN PS3 GamePad rumble and led settings supportHongye Yuan1-3/+8
Rumble support on SHANWAN PS3 gamepad is not working when a user program has asked it to. If a HID Output Reports is sent via Control Channel then it will be discard by gamepad, thus rumble motor and led settings in Output Report are ignored. This patch therefore sends HID Output Report via Interrupt Channel to SHANWAN gamepad instead of Control Channel, fixing rumble motor and led settings. Signed-off-by: Hongye Yuan <outmatch@gmail.com> Reviewed-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2019-01-09HID: sony: Transform one-time SHANWAN check into quirkHongye Yuan1-7/+13
Transform the one-time check for a SHANWAN PS3 clone gamepad into a quirk, to avoid doing the same string comparison in multiple places. Signed-off-by: Hongye Yuan <outmatch@gmail.com> Reviewed-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-07-09HID: hid-sony.c: Use devm_ api to simplify sc->output_report_dmabufHanno Zulla1-7/+8
HID: hid-sony.c: Use devm_ api to simplify sc->output_report_dmabuf Using devm_ calls, the resources of the Sony game devices's features are tied to the main device handle, making it easier to handle errors and teardown inside the device driver. Altogether, this reduces complexity of the driver source. Signed-off-by: Hanno Zulla <kontakt@hanno.de> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-09HID: hid-sony.c: Use devm_ api to simplify sony_battery_probe()Hanno Zulla1-24/+4
HID: hid-sony.c: Use devm_ api to simplify sony_battery_probe() Using devm_ calls, the resources of the Sony game devices's features are tied to the main device handle, making it easier to handle errors and teardown inside the device driver. Altogether, this reduces complexity of the driver source. Signed-off-by: Hanno Zulla <kontakt@hanno.de> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-09HID: hid-sony.c: Use devm_ api to simplify sony_leds_init()Hanno Zulla1-37/+5
[PATCH 3/5] HID: hid-sony.c: Use devm_ api to simplify sony_leds_init() Using devm_ calls, the resources of the Sony game devices's features are tied to the main device handle, making it easier to handle errors and teardown inside the device driver. Altogether, this reduces complexity of the driver source. Signed-off-by: Hanno Zulla <kontakt@hanno.de> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-09HID: hid-sony.c: Use devm_ api to simplify sony_register_sensors()Hanno Zulla1-34/+5
[PATCH 2/5] HID: hid-sony.c: Use devm_ api to simplify sony_register_sensors() Using devm_ calls, the resources of the Sony game devices's features are tied to the main device handle, making it easier to handle errors and teardown inside the device driver. Altogether, this reduces complexity of the driver source. Signed-off-by: Hanno Zulla <kontakt@hanno.de> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-07-09HID: hid-sony.c: Use devm_ api to simplify sony_register_touchpad()Hanno Zulla1-34/+6
HID: hid-sony.c: Use devm_ api to simplify sony_register_touchpad() Using devm_ calls, the resources of the Sony game devices's features are tied to the main device handle, making it easier to handle errors and teardown inside the device driver. Altogether, this reduces complexity of the driver source. Signed-off-by: Hanno Zulla <kontakt@hanno.de> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-03-06HID: sony: Add touchpad support for NSG-MR5U and NSG-MR7U remotesTodd Kelner1-6/+125
Sony's NSG-MR5U and NSG-MR7U remote controls have a full keyboard and a touchpad. The keyboard is already supported by the existing Linux kernel and drivers but the touchpad is not recognized. This patch adds the coded needed to bring full functionality to the touchpad. Note that these remotes use the vendor code for SMK even though they are Sony branded. Known limitations - The built-in accelerometers are not supported by these changes - When the Drag (Fn) key is used as a mouse button, the button is automatically released when the key begins repeating. There are two workarounds for this 1) Use the button behind the touchpad instead of the Drag (Fn) key or 2) Disable the key repeat functionality or increase the key repeat delay. Signed-off-by: Todd Kelner <tsopdump@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-01-31Merge branches 'for-4.16/upstream' and 'for-4.15/upstream-fixes' into for-linusJiri Kosina1-8/+2
Pull assorted small fixes queued for merge window.
2018-01-23HID: sony: Report DS4 version info through sysfsRoderick Colenbrander1-0/+83
Report DS4 firmware and hardware version through sysfs for both USB and Bluetooth. This information is important for userspace in particular for device specific quirks (e.g. in Bluetooth stacks). Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-01-23HID: sony: Print reversed MAC address via %pMRAndy Shevchenko1-8/+2
Reversed MAC addresses can be printed directly using %pMR specifier. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Roderick Colenbrander <roderick.colenbranderer@sony.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-11-09HID: sony: Fix SHANWAN pad rumbling on USBBastien Nocera1-4/+10
The SHANWAN PS3 clone joypad will start its rumble motors as soon as it is plugged in via USB. As the additional USB interrupt does nothing on the original PS3 Sixaxis joypads, and makes a number of other clone joypads actually start sending data, disable that call for the SHANWAN so the rumble motors aren't started on plug. Signed-off-by: Bastien Nocera <hadess@hadess.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-05-02Merge branch 'for-4.12/sony' into for-linusJiri Kosina1-810/+864
2017-04-06HID: sony: remove redundant check for -ve errColin Ian King1-3/+0
err is being checked for failure each time it is being updated so this err check is totally redundant and can be removed Detected with CoverityScan, CID#1420665 ("Logically dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-06HID: sony: Make sure to unregister sensors on failureRoderick Colenbrander1-3/+2
Make sure we sure register any sensor when sony_input_configured failes. Somehow this line got lost during resolving of merge conflicts in the motion sensor patch series and a redudant remove was added as well later on. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-06HID: sony: Make DS4 bt poll interval adjustableRoderick Colenbrander1-10/+69
By default when using bluetooth the DS4 reports data at about 1kHz, which is quite fast especially on weak devices. We now make the device use the USB poll interval, which is a fixed 4ms. In addition we make the value adjustable through sysfs. The error handling in sony_input_configured is a little tricky. It is not easy to add other goto's as not all codepaths have logic for adding this attribute. Luckily we are setting the value for the attribute to a default value, so we can use that to detect if we need to remove the file. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-06HID: sony: Set proper bit flags on DS4 output reportRoderick Colenbrander1-2/+2
Only set bit flags for the portions of the DS4 output report for which we have data. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-06HID: sony: DS4 use brighter LED colorsRoderick Colenbrander1-4/+4
These colors are more the default colors normally used on the DS4. The previous ones were faint and not so noticeable. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-06HID: sony: Improve navigation controller axis/button mappingRoderick Colenbrander1-101/+85
The navigation controller is a DS3 (sixaxis) with fewer physical axes and buttons. It utilizes the same HID report as the DS3 and thus reports axes/buttons which aren't physically present. Currently many non-existing buttons and axes are reported, which we are now removing. For the axes/buttons which do exist, we make the axis/button mapping similar to the DS3. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-06HID: sony: Use DS3 MAC address as unique identifier on USBRoderick Colenbrander1-0/+6
The DS3 MAC address is reported as a unique identified when using Bluetooth. For USB there is no unique identifier reported yet, so use the MAC address. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Perform duplicate device check earlier onRoderick Colenbrander1-4/+4
Game controllers can be connected twice through USB and BT. Only one connection is allowed. Currently we perform a check for duplicate controllers halfway through device initialization. To prevent 'transient' devices, we should do this check as early as we can. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Expose DS3 motion sensors through separate deviceRoderick Colenbrander1-25/+105
This patch adds a separate evdev node for the DS3 its motion sensors. We only expose the accelerometers as the gyroscope is extremely difficult to manage and behavior varies a lot between hardware revisions. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Print error on failure to active DS3 / Navigation controllersRoderick Colenbrander1-0/+12
This patch adds printing when we failed to activate DS3 / Nagivation controllers and checks the return value for these failures earlier in sony_input_configured. This paves the way for other configuration logic for these devices, which we don't want to call if for example the activation failed. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: DS3 comply to Linux gamepad specRoderick Colenbrander1-95/+81
The axis and button mapping for the DS3 is strange. This is mostly due to the device reporting many axes as for every digital button it also has an analog button. Due to amount of analog values it is even leaking well into the MT axes range. We felt it is best to remove the many analog buttons and just report digital and comply to the Linux gamepad spec. The analog buttons are rarely used on the official platform, let alone on Linux. This patch does remove motion sensor support (added back in another patch). Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Mark DS4 touchpad device as a pointerRoderick Colenbrander1-1/+1
Currently the DS4 touchpad device is neither classified as a direct input device nor as a pointer device. It makes most sense to mark it as a pointer device. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Support motion sensor calibration on dongleRoderick Colenbrander1-7/+89
The DualShock 4 dongle isn't connected to a real DualShock 4 at time of driver loading. When a DualShock 4 is plugged in, we need to obtain calibration data (the dongle would have zeros). This patch adds calibration logic, which we schedule on a hotplug from sony_raw_event. In addition this patch adds dongle state handling. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Make work handling more genericRoderick Colenbrander1-11/+19
The driver currently uses sony_schedule_work to submit output reports for the different devices for LEDs or rumble. This patch adds a new parameter to sony_schedule_work to allow scheduling for other types of work. The next patch in this series will utilize this functionality. Considering the driver structure and all error handling it felt best to reuse sony_schedule_work and sony_cancel_work. The idea was inspired by the wacom driver which does something similar. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Treat the ds4 dongle as a separate deviceRoderick Colenbrander1-48/+51
This patch adds a new quirk, which allows us to differentiate between the DualShock 4 USB and the dongle. So far they have been treated the same, but handling of calibration data differs as the dongle behaves like Bluetooth, for other requests it behaves like USB. In addition this patches changes usb/dongle/bt handling in sony_raw_event, which makes the code cleaner to read. In addition another patch in this series will add more dongle logic, so this change paves the road for that. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Remove report descriptor fixup for DS4Roderick Colenbrander1-202/+59
The DS4 in BT mode sends initial input reports through report 1, which is described in the HID report descriptors. When activated after sending a certain feature report, the device uses report 17. Currently the hid-sony driver fixes up the BT HID report descriptors, so the HID layer can manage input reports for report 17. We think it is best to eliminate this fixup and do the handling ourselves, which is what this patch does. The main motivation is that there are various users of DS4 through hidraw, including various cross-platform applications/games, which have their own HID parsing across Linux/Win/OSX. Due to the fixup the descriptors differ, which is causing pain for many developers including major game publishers (who reached out privately). Without the fixup, the Windows titles also have a fighting chance for working on Wine, which provides HID support now. Overall it felt best because of these reasons to remove the fixup. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Report hardware timestamp for DS4 sensor valuesRoderick Colenbrander1-0/+27
Report the hardware timestamp inside each HID report through MSC_TIMESTAMP for motion sensor values. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Calibrate DS4 motion sensorsRoderick Colenbrander1-28/+184
The DS4 motion sensors require calibration for accurate operation. This patch adds calibration for both the accelerometer and the gyroscope. Calibration requires reading device specific scaling factors and offsets. For precision reasons we store these values as a numerator and denominator and apply the values when processing the data. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-21HID: sony: Report DS4 motion sensors through a separate deviceRoderick Colenbrander1-292/+105
The DS4 motion sensors are currently mapped by the hid-core driver to non-existing axes in between ABS_MISC and ABS_MT_SLOT, because the device already exhausted ABS_X-ABS_RZ. For a part the mapping by hid-core is accomplished by a fixup in hid-sony as the motion axes actually use vendor specific usage pages. This patch makes the DS4 use a separate input device for the motion sensors and reports acceleration data through ABS_X-ABS_Z and gyroscope data through ABS_RX-ABS_RZ. In addition it extends the event spec to allow gyroscope data through ABS_RX-ABS_RZ when INPUT_PROP_ACCELEROMETER is set. This change was suggested by Peter Hutterer during a discussion on linux-input. [jkosina@suse.cz: rebase onto slightly newer codebase] Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-06HID: sony: Fix input device leak when connecting a DS4 twice using USB/BTRoderick Colenbrander1-0/+2
When a user connects a DS4 twice using USB and BT, we reject the second device connection after the setup work. We then perform a cleanup, but during cleanup we are not removing the touchpad device. This leads to leakage of an input device, which we would never remove. It can likely result into a kernel oops as well when the touchpad evdev node is accessed and the underlaying HID device has been removed from the system. [jkosina@suse.cz: added stable annotation] Fixes: ac797b95f532 ("HID: sony: Make the DS4 touchpad a separate device") Cc: stable@vger.kernel.org Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-06HID: sony: Use LED_CORE_SUSPENDRESUMEFrank Praznik1-30/+15
The LED subsystem provides the LED_CORE_SUSPENDRESUME flag to handle automatically turning off and restoring the state of device LEDs during suspend/resume. Use this flag instead of saving and restoring the state locally. Signed-off-by: Frank Praznik <frank.praznik@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-12-19HID: sony: Ignore DS4 dongle reports when no device is connectedRoderick Colenbrander1-0/+28
When the DS4 dongle is connected, it always generates HID reports even when no DS4 is paired to it. This patch adds logic to ignore HID reports from the dongle if there is no DS4 currently attached. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-12-19HID: sony: Use DS4 MAC address as unique identifier on USBRoderick Colenbrander1-0/+6
The DS4 MAC address is reported as a unique identified when using Bluetooth. For USB there is no unique identifier reported yet, so use the MAC address. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-12-19HID: sony: Fix error handling bug when touchpad registration failsRoderick Colenbrander1-1/+1
The error handling code in sony_input_configured in general uses goto based cleanup. Recently we migrated code from sony_probe to here, but we didn't update the existing touchpad registration code, which was already here to use the goto. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-11-29HID: sony: Support DS4 dongleRoderick Colenbrander1-0/+2
Add support for USB based DS4 dongle device, which allows connecting a DS4 through Bluetooth, but hides Bluetooth from the host system. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-11-28HID: sony: Comply to Linux gamepad spec for DS4Roderick Colenbrander1-0/+70
The DS4 side of hid-sony used the hid-core layer to assign buttons and axes based on the HID report descriptors. The default mapping was strange e.g. right stick using ABS_Z/ABS_RZ or the physical 'south button' being reported as BTN_EAST etcetera. This patch makes the DS4 side ofi the hid-sony driver comply to the Linux game controller spec as suggested in a discussion with Dmitry on the linux-input list. Currently the main user of the DS4 is the SDL2 library, which has a mapping table using vendor/device/version as a key. In order to not break SDL2 we discussed adjusting the version number, so it can have both mappings. This was discust on linux-input and we discussed privately with SDL2 developers. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-11-28HID: sony: Make the DS4 touchpad a separate deviceRoderick Colenbrander1-21/+84
The dualshock 4 supports both analog sticks of which one uses ABS_X/_Y and a touchpad. In a recent discussion with Dmitry about some input-mt changes we proposed for disabling pointer emulation from input_mt_sync_frame, Dmitry mentioned ABS_X/_Y should report the same data as ABS_MT_POSITION_X/_Y. The current driver is mixing axes for different subdevices. It was suggested to make the touchpad its own sub-device. This patch turns the touchpad into its own device. In addition this patch also moves the button underneath the touchpad into the new device. It felt like this button should be part of the device. No known user space application (not even SDL2) seems to be using it. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-11-28HID: sony: Fix memory issue when connecting device using both Bluetooth and USBRoderick Colenbrander1-0/+13
A previous patch moved most input initialization from sony_probe to sony_input_configured to avoid some race conditions. The driver has some special logic to prevent the device to get registered twice in case the user connects it both over Bluetooth and USB. When this condition happens sony_input_configured returns a failure, but sony_probe continues as hid_hw_start doesn't fail. As was discussed on linux-input, it is acceptable for this function to fail. This patch adds a check for the HID_CLAIMED_INPUT flag within sony_probe to determine whether initialization succeeded correctly. The flag is not set by the HID layer when sony_input_configured fails. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10HID: sony: Update device idsRoderick Colenbrander1-0/+4
Support additional DS4 model. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10HID: sony: Adjust value range for motion sensorsRoderick Colenbrander1-6/+6
The motion sensor values are 16-bit, so make the value range match. It is hard to reach the upper values, but they can be reached. At least the current accelerometer value of 8192 is very easy to pass. It is still not nice that the motion sensors live in no man's land in between ABS_MISC and ABS_MT_SLOT, but that's something for another time, which the proposed ABS_ACCEL_*/ABS_GYRO_* were meant for. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10HID: sony: Handle multiple touch events input recordRoderick Colenbrander1-26/+52
Read the touch history field in the HID descriptor and use this value to determine how many touch events to read from the report. As part of this patch, we did a first attempt of making the offset calculation code less magical. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10HID: sony: Send ds4 output reports on output end-pointRoderick Colenbrander1-9/+11
Add a CRC value to each output report. This removes the need for the 'no output reports on interrupt end-point' quirk. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10HID: sony: Perform CRC check on bluetooth input packetsRoderick Colenbrander1-0/+18
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10HID: sony: Adjust HID report size name definitionsRoderick Colenbrander1-15/+15
Put the report type (feature / output) in the report size definitions. This prevents name collisions later on for other different reports, which use the same report id, but have a different size. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-10HID: sony: Fix race condition in sony_probeRoderick Colenbrander1-59/+58
Early on the sony_probe function calls hid_hw_start to start the hardware. Afterwards it issues some hardware requests, initializes other functionality like Force Feedback, power classes and others. However by the time hid_hw_start returns, the device nodes have already been created, which leads to a race condition by user space applications which may detect the device prior to completion of initialization. We have observed this problem many times, this patch fixes the problem. This patch moves most of sony_probe to sony_input_configured, which is called prior to device registration. This fixes the race condition and the same approach is used in other HID drivers. Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-10-07Merge branches 'for-4.8/upstream-fixes', 'for-4.9/alps', 'for-4.9/hid-input', 'for-4.9/intel-ish', 'for-4.9/kye-uclogic-waltop-fixes', 'for-4.9/logitech', 'for-4.9/sony', 'for-4.9/upstream' and 'for-4.9/wacom' into for-linusJiri Kosina1-13/+69
2016-09-26HID: sony: Update copyright and add Dualshock 4 rate control noteFrank Praznik1-1/+12
Update the copyright notice with the current year and add a note about values for controlling the Dualshock 4 reporting rate. Processing reports at the default full rate of 1000hz can be too demanding for some low-power embedded processors so noting alternate values for people working with this hardware can be useful. Thanks to Rostislav Pehlivanov for finding these values. Signed-off-by: Frank Praznik <frank.praznik@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>