src/sys/dev/evdev/evdev.c, branch release/12.3.0

MFC r366533:

2020-10-20T08:29:28Z

Allow evdev's rcpt_mask and sysmouse_t_axis parameters to be specified in /boot/loader.conf . Sponsored by: Mellanox Technologies // NVIDIA Networking

MFC r360126, r360132: Change kern.evdev.rcpt_mask to 12 by default

2020-05-04T18:40:56Z

Original commit messages: Change kern.evdev.rcpt_mask from 3 to 12 by default. This makes us much more evdev-friendly, and will prevent everyone using xorg and wayland with evdev devices (the default) from needing to change this locally. powerpc32 still uses the old value for the keyboard part, becaues the adb keyboard driver used there is not evdev compatible. In r360126, I meant to have a different mask only on powerpc, not powerpc64. Update the check to check that we're not compiling for powerpc64. Approved by: wulf (implicit, mfc) Relnotes: yes Differential Revision: https://reviews.freebsd.org/D24370

MFC r359905:

2020-04-26T19:42:40Z

[evdev] Use proper mutex reference in autorepeat callout initialization. This fixes panic occuring when evdev key autorepeat is enabled by driver which initializes evdev with external mutex.

MFC r360104: Use LIST_FOREACH_SAFE instead of LIST_FOREACH as we are

2020-04-22T05:08:42Z

removing elements in the middle. This fixes a panic when detaching USB mouse. PR: 245732 Reviewed by: wulf

MFC r344494,r344495:

2019-03-10T20:43:08Z

evdev: export event device properties through sysctl interface A big security advantage of Wayland is not allowing applications to read input devices all the time. Having /dev/input/* accessible to the user account subverts this advantage. libudev-devd was opening the evdev devices to detect their types (mouse, keyboard, touchpad, etc). This don't work if /dev/input/* is inaccessible. With the kernel exposing this information as sysctls (kern.evdev.input.*), we can work w/o /dev/input/* access, preserving the Wayland security model. Submitted by: Greg V Reviewed by: wulf, imp Differential Revision: https://reviews.freebsd.org/D18694

MFC r339823:

2018-11-17T20:18:15Z

evdev: Use console lock as evdev lock for all supported keyboard drivers. Now evdev part of keyboard drivers does not take any locks if corresponding input/eventN device node is not opened by userland consumers. Do not assert console lock inside evdev to handle the cases when keyboard driver is called from some special single-threaded context like shutdown thread. MFC r339824: evdev: disable evdev if it is invoked from KDB or panic context This allow to prevent deadlock on entering KDB if one of evdev locks is already taken by userspace process. Also this change discards all but LED console events produced by KDB as unrelated to userspace.

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

evdev: Export EVDEV_SUPPORT kernel option through feature facility

2017-11-20T19:17:43Z

Suggested by: netchild Reviewed by: gonzo Approved by: gonzo (mentor) MFC after: 1 week

evdev: Do not start/stop softrepeat callout if no clients attached

2017-11-01T22:37:43Z

Reviewed by: gonzo Approved by: gonzo (mentor) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D12676

evdev: Disable value normalization and state filtering for SND events.

2017-11-01T22:33:44Z

Some events can take sound pitch as a value so can not be represented as binary on/off events. Tracking for on/off state is left in place as it is a part of the evdev API. Reviewed by: gonzo Approved by: gonzo (mentor) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D12676