CVS commit: src/sys/dev/i2c

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sun Dec 22 16:44:35 UTC 2019

Modified Files:
        src/sys/dev/i2c: ihidev.c ihidev.h

Log Message:
The hid-over-i2c spec specifies that compliant devices use level-sensitive
interrupts.  However, it's not safe to do i2c bus access in hard interrupt
context, and we must read the event data off the device in order to clear
the interrupt condition.

Address this by using acpi_intr_mask() to mask off the interrupt source
while a softint is pending to service the events, re-enabling it once
servicing is completed.

While here, re-factor the interrupt setup / tear-down code a bit to
eventually once day simplify supporting the FDT bindings for hid-over-i2c.


To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/sys/dev/i2c/ihidev.c
cvs rdiff -u -r1.1 -r1.2 src/sys/dev/i2c/ihidev.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.