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path: root/drivers/hid/hid-multitouch.c
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2013-02-21Merge branches 'for-3.9/logitech', 'for-3.9/multitouch', 'for-3.9/ntrig', ↵Jiri Kosina1-49/+114
'for-3.9/thingm' and 'for-3.9/upstream' into for-linus
2013-02-07HID: multitouch: do not use pointers towards hid-coreBenjamin Tissoires1-6/+13
The previous implementation registered a pointer towards hid-core to the value of contact count. This is not safe and may be difficult to debug if hid-core ever changes its implementation. The use of regular indexes is a better choice. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: make MT_CLS_ALWAYS_TRUE the new default classBenjamin Tissoires1-27/+27
By running a test on all the traces of the devices I have, I noticed that the class MT_CLS_ALWAYS_TRUE could handle all the devices I've seen so far without any other quirks. I guess this is the behavior Win 7 requires in its driver. We can change the default class then and keep the existing classes for backward compatibility and performances for some of them. Two operations have been done: * replaced MT_CLS_DEFAULT by MT_CLS_NSMU * then replaced MT_CLS_ALWAYS_TRUE by MT_CLS_DEFAULT Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: fix protocol for Elo panelsBenjamin Tissoires1-1/+7
The previous protocol was nearly working, but when several fingers were present on the sensor, those that were not moving were not updated in the next report, introducing a lot of releases. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Conflicts: drivers/hid/hid-multitouch.c Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: fix protocol for Cando 2087:0a02Benjamin Tissoires1-1/+7
Cando 2087:0a02 was broken, this fixes it. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: fix protocol for Sitronix 1403:5001Benjamin Tissoires1-1/+1
Since the inclusion of this device in hid-multitouch, the device did not forward any events. Using the serial class makes it working again. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: ensure that serial devices make no use of contact countBenjamin Tissoires1-0/+1
The serial protocol makes contact count a redondant information, and sometimes it is not reliable (TRS-Star are in this case). Disabling the use of contact count for these devices is thus safer. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: fix Win8 protocol for Sharp like devicesBenjamin Tissoires1-0/+1
The Sharp LC-20FE1-W screen (04dd:9681) behaves like the Nexio 42". It may report out of ranges values that are filtered out by relying on the Contact Count HID field. Adding the quirk MT_QUIRK_CONTACT_CNT_ACCURATE makes hid-multitouch strongest against this kind of device, without breaking the current devices. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: add support for Nexio 42" panelBenjamin Tissoires1-6/+30
This device is the worst device I saw. It keeps TipSwitch and InRange at 1 for fingers that are not touching the panel. The solution is to rely on the field ContactCount, which is accurate as the correct information are packed at the begining of the frame. Unfortunately, CountactCount is most of the time at the end of the report. The solution is to pick it when we have the whole report in raw_event. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-02-05HID: multitouch: use the callback "report" instead of sequential eventsBenjamin Tissoires1-6/+38
Nexio 42" devices requires to rely on the HID field Contact Count to compute the valid values. However, this field is most of the time at the end of the report, meaning that we need to get the all report parsed before processing it. This patch does not introduce functional changes. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-01-03HID: Use module_hid_driver macroH Hartley Sweeten1-13/+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>
2012-11-15HID: multitouch: fix Win 8 protocolBenjamin Tissoires1-0/+12
The Win 8 protocol specify the fact that each valid touch must be reported within a frame until it is released. We can therefore use the always_valid quirk and dismiss reports when we see duplicate contacts ID. We recognize Win8 certified devices from their vendor feature 0xff0000c5 where Microsoft put a signed blob in the report to check if the device passed the certification. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-15HID: multitouch: support for hovering devicesBenjamin Tissoires1-3/+15
Win8 devices supporting hovering must provides InRange HID field. The information that the finger is here but is not touching the surface is sent to the user space through ABS_MT_DISTANCE as required by the multitouch protocol. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-15HID: multitouch: add MT_QUIRK_IGNORE_DUPLICATESBenjamin Tissoires1-0/+9
This quirk allows a device to reuse a contact id when sending garbage inactive contacts at the end of a report. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-15HID: multitouch: move ALWAYS_VALID quirk checkBenjamin Tissoires1-4/+2
Win 8 device specification changed the requirements for the hid usages of the multitouch devices. Now InRange is optional and must be only used when the device supports hovering. This ensures that the quirk ALWAYS_VALID is taken into account and also ensures its precedence over the other VALID* quirks. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-15HID: multitouch: support T and C for win8 devicesBenjamin Tissoires1-9/+37
Win8 input specification clarifies the X and Y sent by devices. It distincts the position where the user wants to Touch (T) from the center of the ellipsoide (C). This patch enable supports for this distinction in hid-multitouch. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-15HID: multitouch: get maxcontacts also from logical_max valueBenjamin Tissoires1-0/+4
Win8 devices are required to present the feature "Maximum Contact Number". Fortunately all win7 devices I've seen presents this feature. If the current value is 0, then, the driver can get the actual supported contact count by refering to the logical_max. This win8 specification ensures that logical_max may not be above 250. This also allows us to detect when devices like irtouch or stantum reports an obviously wrong value of 255. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-15HID: multitouch: support arrays for the split of the touches in a reportBenjamin Tissoires1-6/+9
Win8 certification introduced the ability to transmit two X and two Y per touch. The specification precises that it must be used in an array. This test guarantees that we split the touches on the last element in this array. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Reviewed-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-15HID: export hidinput_calc_abs_resBenjamin Tissoires1-0/+1
Exporting the function allows us to calculate the resolution in third party drivers like hid-multitouch. This patch also complete the function with additional valid axes. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-31HID: multitouch: fix maxcontacts problem on GeneralTouchXianhan Yu1-2/+1
Fix maxcontacts problem for PWT GeneralTouch multi-touchscreen. Our device didn't contain HID_DG_CONTACTMAX usage. This usage use to describe touchscreen's maxcontacts for hid-multitouch.c to get maxcontacts automatic. We fix the device that driver can get maxcontact from our device, hence it doesn't need .maxcontact=10. Now there is just one device class can fix all our PWT touchscreen. Signed-off-by: Xianhan Yu <aroundight77@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-31HID: multitouch: put the case in the right switch statementAlan Cox1-1/+1
Signed-off-by: Alan Cox <alan@linux.intel.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-10-01Merge branch 'multitouch' into for-linusJiri Kosina1-7/+60
Conflicts: drivers/hid/hid-multitouch.c
2012-10-01HID: multitouch: add support for GeneralTouch multi-touchscreenXianhan Yu1-1/+17
Fix the touch-up no response problem on GeneralTouch twofingers touchscreen and modify the driver for new GeneralTouch PWT touchscreen. Signed-off-by: Xianhan Yu <aroundight77@gmail.com> Reviewed-by Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-09-19HID: hid-multitouch: Add Flatfrog supportHenrik Rydberg1-5/+21
Add support for the Flatfrog Multitouch 3200 panel. This panel advertises some fields that it does not use, hence the new quirk. Cc: Pablo Cases <pablo.cases@flatfrog.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-09-19HID: hid-multitouch: Fix contact count on 3M panelsHenrik Rydberg1-1/+3
Some devices report the number of contacts via the unreliable CONTACTCOUNT usage, rather than using the CONTACTMAX feature. Without this patch, the 3M devices are constrained to the default maximum of ten fingers. Cc: Benjamin Tissoires <benjamin.tissoires@enac.fr> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-09-19HID: hid-multitouch: Remove the redundant touch stateHenrik Rydberg1-65/+23
With the input_mt_sync_frame() function in place, there is no longer any need to keep the full touch state in the driver. This patch removes the slot state and replaces the lookup code with the input-mt equivalent. Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-09-19HID: hid-multitouch: Simplify setup and frame synchronizationHenrik Rydberg1-29/+38
With the input_configured() callback in place, the setup and frame synchronization can be simplified. The input device initialization is moved to mt_input_configured(), to make sure the full HID report has been seen. Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2012-09-19Input: MT - Add flags to input_mt_init_slots()Henrik Rydberg1-1/+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>
2012-08-15HID: multitouch: Add ELAN production request when resume.Scott Liu1-0/+27
Add ELAN production request when resume. Some Elan legacy devices require SET_IDLE to be set on resume. It should be safe to send it to other devices too. Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. Suggested by Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Scott Liu <scott.liu@emc.com.tw> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-08-15HID: multitouch: Add support for eGalax 0x73f7Thierry Reding1-0/+3
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-08-15HID: hid-multitouch: Remove misleading null testHenrik Rydberg1-6/+4
A null test was left behind during the autoloading work; the test was introduced by 8d179a9e, but was never completely reverted. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-08-15HID: multitouch: add support for Touch Revolution touchscreensJiri Kosina1-0/+9
Reported-by: Tom Mealey <thecompwiz@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-06-28HID: hid-multitouch: add support for Zytronic panelsBenjamin Tissoires1-0/+5
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-06-28HID: hid-multitouch: fix input mode feature commandBenjamin Tissoires1-1/+12
Zytronic panels shows a new way of setting the Input Mode feature. This feature is put in the second usage in the HID feature, instead of the first, as the majority of the multitouch devices. This patch adds a detection step when the feature is presented to know where the feature is located in the report. We can then trigger the right command to the device. This removes the magic number "0" in the function mt_set_input_mode. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-06-06HID: multitouch: fix entry for Novatek TouchscreenJiri Kosina1-1/+1
Since Henrik's autoloading changes, the proper macro for device entry is MT_USB_DEVICE(). Reported-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-06-06HID: multitouch: add support for Novatek touchscreenAustin Hendrix1-0/+5
Add support for a Novatek touchscreen panel as a generic HID multitouch panel. Signed-off-by: Austin Hendrix <ahendrix@willowgarage.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-05-10HID: hid-multitouch: fix wrong protocol detectionBenjamin Tissoires1-12/+46
The previous implementation introduced a randomness in the splitting of the different touches reported by the device. This version is more robust as we don't rely on hi->input->absbit, but on our own structure. This also prepares hid-multitouch to better support Win8 devices. [Jiri Kosina <jkosina@suse.cz>: fix build] Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-05-05HID: multitouch: MT interface matching for BaantoJiri Kosina1-1/+1
Baanto device entry needs to be altered in the same way other device entries have been changed in 2c2110e90b5 ("HID: hid-multitouch: Only match MT interfaces"). Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-05-05Merge branch 'multitouch' into device-groupsJiri Kosina1-0/+4
I am merging multitouch branch into device-groups so that support for Baanto device can be adjusted accordingly to the new autoloading patches. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-05-05HID: hid-multitouch: Only match MT interfacesHenrik Rydberg1-70/+73
All known hid-multitouch devices currently match any device group. However, some devices present interfaces belonging to different groups, resulting in a race between the hid-generic and hid-multitouch modules. This patch narrows the MT device list to match only HID_GROUP_MULTITOUCH, which solves the problem. As an exception, the USB_DEVICE_ID_CYPRESS_TRUETOUCH panel is not modified, in order to suppress the unwanted extra interfaces of the device. Reported-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-05-01HID: hid-multitouch: Switch to device groupsHenrik Rydberg1-9/+19
Switch the driver over to device group handling. By adding the HID_GROUP_MULTITOUCH group to hid-core, hid-generic will no longer match multitouch devices. By adding the HID_GROUP_MULTITOUCH entry to the device list, hid-multitouch will match all unknown multitouch devices, and udev will automatically load the module. Since HID_QUIRK_MULTITOUCH never gets set, the special quirks handling can be removed. Since all HID MT devices have HID_DG_CONTACTID, they can be removed from the hid_have_special_driver list. With this patch, the unknown device ids are no longer NULL, so the code is modified to check for the generic entry instead. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-04-20HID: multitouch: Add support for Baanto touchscreenJiri Kosina1-0/+4
Reported-by: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk> Tested-by: Tvrtko Ursulin <tvrtko.ursulin@onelan.co.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-20Merge branch 'upstream' into for-linusJiri Kosina1-0/+5
Conflicts: drivers/hid/Makefile
2012-03-20HID: multitouch: add PID for Fructel productAndreas Nielsen1-0/+5
Adds multitouch support for the Gametel Android game controller. The multitouch events are emulated by the Gametel device. Each physical button is configured to generate a MT event on a specific coordinate. This seems to be the only way for us to support Android games that doesn't support HID gamepads. It is possible to inject MT events at Android level, but this requires root on the phone. Signed-off-by: Andreas Nielsen <eas@svep.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-12HID: multitouch: detect serial protocolBenjamin Tissoires1-0/+13
Microsoft's documentation about multitouch protocols tells that if a device presents one touch per report, then it should be treated as a serial protocol. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-12HID: handle all multitouch devices through hid-multitouchBenjamin Tissoires1-4/+7
When the quirk HID_QUIRK_MULTITOUCH is present and when hid-multitouch is loaded, let's pass the device to hid-multitouch even if it has not been registered in hid-multitouch. If any other driver wants to take precedence over hid-multitouch, the usual way of adding it to hid_have_special_driver will work as the quirk HID_QUIRK_MULTITOUCH won't be set by the generic hid layer. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-12HID: multitouch: fix handling of buggy reports descriptors for Dell ST2220TBenjamin Tissoires1-39/+25
LG multitouch panels, such as the one found in Dell ST2220T, has buggy reports descriptors. With the previous implementation, it was impossible to rely on the reports descriptors to determine how the different touches are emitted from the device. This patch changes the splitting of the different touches in the report in a more robust way. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-09HID: multitouch: add support for eGalax 0x722aBenjamin Tissoires1-0/+3
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-06HID: multitouch: add more eGalax devicesBenjamin Tissoires1-0/+18
This is a list of devices that should be handled by hid-multitouch. They all present the HID usage "Contact ID" and won't be handled by hid-input. Some of them have _not_ been tested (though I have their report descriptors), but I've been guaranted by eeti that they follow the same protocol. The tested ones are also blacklisted in hid-core.c. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-06HID: multitouch: add new PID from IdeacomBenjamin Tissoires1-0/+3
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr> Acked-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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