src/sys/dev/usb/input/wmt.c, branch release/12.3.0

MFC r358824:

2020-03-17T23:57:06Z

wmt(4): Fix Synaptics Touch Digitizer V04 attachment Touch Digitizer V04 report descriptor declares 'Contact Count Maximum' usage as constant. That was not supported by descriptor parser. PR: 232040 Reported by: Sergei Akhmatdinov

MFC r358895

2020-03-14T22:03:49Z

wmt(4): Reapply r358872 (by hselasky) modified to use maximal input report size instead of wMaxPacketSize. If the USB frame length is set to 1024 bytes, WMT_BSIZE, the EETI controller will pack multiple touch events in the packet and the current code will only process the first touch event. As a result some important events are lost like releasing the finger from the touchscreen. Use the maximal input report size as buffer size instead. PR: 244718 Tested by: Oskar Holmlund , wulf Discussed with: hselasky

MFC r340338:

2019-01-18T20:59:06Z

wmt(4): Add PNP record so it could be picked by devd/devmatch. Fix uhid(4) conflict with blacklisting of multitouch HID-usages in uhid(4) probe handler. Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D17689

wmt(4): Fix regression introduced in r337289

2018-09-04T19:22:31Z

r337289 has a side effect of reducing usb frame 0 buffer size down to touch report size. That broke some devices e.g. "Raydium Touch System" which are capable of generating non-touch frames of bigger length. Fix it with enlarging frame 0 buffer up to internal wmt(4) buffer size. Reported by: Roberto Fernandez Cueto Tested by: Roberto Fernandez Cueto Approved by: re (gjb) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D16772

evdev: remove soft context from evdev methods parameter list.

2018-08-13T19:00:42Z

Now softc should be retrieved from struct edvev * pointer with evdev_get_softc() helper. wmt(4) is a sample of driver that support both KPI. Reviewed by: hselasky, gonzo Differential Revision: https://reviews.freebsd.org/D16614

wmt(4): Use internal function to calculate input report size

2018-08-04T12:31:19Z

Usbhid's hid_report_size() calculates integral size of all reports of given kind found in the HID descriptor rather then exact size of report with given ID as its userland counterpart does. As all input data processed by the driver is located within the same report, calculate required driver's buffer size with userland version, imported in one of the previous commits. This allows us to skip zeroing of buffer on processing of each report. While here do some minor refactoring. MFC after: 2 weeks

wmt(4): Read Microsoft's "Touch Hardware Quality Assurance" certificate blob

2018-08-04T12:29:08Z

if present to enable some devices like WaveShare touchscreens. Unlike Windows we discard content of the blob. We try mimic Windows driver behaviour from the USB device point of view. Submitted by: glebius (initial version)

wmt(4): Read 'Contact count maximum' usage value from feature report

2018-08-04T12:24:37Z

rather than from HID descriptor to match Microsoft documentation. Fall back to HID descriptor provided value if 'Get Report' request failed. MFC after: 2 weeks

Add support for generic MS Windows 7/8/10-compatible USB HID touchscreens

2017-08-19T17:00:10Z

found in many laptops. Reviewed by: hps, gonzo, bcr (manpages) Approved by: gonzo (mentor) Differential Revision: https://reviews.freebsd.org/D12017