CVS commit: src

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

Module Name:    src
Committed By:   thorpej
Date:           Sat May 19 13:59:07 UTC 2018

Modified Files:
        src/share/man/man4: gpio.4
        src/sys/dev/gpio: gpio.c gpiovar.h
        src/sys/sys: gpio.h
        src/usr.sbin/gpioctl: gpioctl.c

Log Message:
Overhaul of GPIO interrupt support (that wasn't even used by anything).
- Remove the old, not-expressive-enough interrupt flags, and replace them
  with a new set of interrupt-specific flags that can express a wide
  variety of interrupt configurations (pos, neg, and double-edge, high
  and low level).
- Remove old, unused gpio_pin_ctl_intr() and gpio_pin_irqen(), and
  replace them with gpio_intr_establish(), gpio_intr_disestablish(),
  and gpio_intr_str().  Corresponding fields in the gpio_chipset_tag
  are also added for back-end controllers, which now handle the actual
  dispatch of GPIO interrupts in order to properly support level-triggered
  interrupts as well as interoperate properly with FDT-registered
  interrupts.

Piggy-back on the 8.99.18 version bump.

Inspired by initial work from Brad Spencer.
PR kern/51676


To generate a diff of this commit:
cvs rdiff -u -r1.32 -r1.33 src/share/man/man4/gpio.4
cvs rdiff -u -r1.60 -r1.61 src/sys/dev/gpio/gpio.c
cvs rdiff -u -r1.17 -r1.18 src/sys/dev/gpio/gpiovar.h
cvs rdiff -u -r1.15 -r1.16 src/sys/sys/gpio.h
cvs rdiff -u -r1.23 -r1.24 src/usr.sbin/gpioctl/gpioctl.c

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