Date: Wed, 29 Aug 2018 17:30:03 +0000 (UTC) From: Steve Wills <swills@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r478362 - in head/misc: . raspberrypi-gpioshutdown raspberrypi-gpioshutdown/files Message-ID: <201808291730.w7THU3E6011895@repo.freebsd.org>
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Author: swills Date: Wed Aug 29 17:30:03 2018 New Revision: 478362 URL: https://svnweb.freebsd.org/changeset/ports/478362 Log: misc/raspberrypi-gpioshutdown: create port GPIO 'shutdown' Kernel module for the Raspberry Pi Model 1B and Model 2 The purpose of this module is to shut down all GPIOs prior to powering off or rebooting a Raspberry Pi. PR: 226787 Submitted by: Bob Frazier <bobf@mrp3.com> Added: head/misc/raspberrypi-gpioshutdown/ head/misc/raspberrypi-gpioshutdown/Makefile (contents, props changed) head/misc/raspberrypi-gpioshutdown/distinfo (contents, props changed) head/misc/raspberrypi-gpioshutdown/files/ head/misc/raspberrypi-gpioshutdown/files/gpioshutdown.in (contents, props changed) head/misc/raspberrypi-gpioshutdown/pkg-descr (contents, props changed) head/misc/raspberrypi-gpioshutdown/pkg-message (contents, props changed) head/misc/raspberrypi-gpioshutdown/pkg-plist (contents, props changed) Modified: head/misc/Makefile Modified: head/misc/Makefile ============================================================================== --- head/misc/Makefile Wed Aug 29 16:49:57 2018 (r478361) +++ head/misc/Makefile Wed Aug 29 17:30:03 2018 (r478362) @@ -457,6 +457,7 @@ SUBDIR += qt5-l10n SUBDIR += qt5ct SUBDIR += qtchooser + SUBDIR += raspberrypi-gpioshutdown SUBDIR += raspberrypi-userland SUBDIR += raspbsd-led SUBDIR += ree Added: head/misc/raspberrypi-gpioshutdown/Makefile ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/misc/raspberrypi-gpioshutdown/Makefile Wed Aug 29 17:30:03 2018 (r478362) @@ -0,0 +1,26 @@ +# $FreeBSD$ + +PORTNAME= raspberrypi-gpioshutdown +DISTVERSION= 1.0 +CATEGORIES= misc +MASTER_SITES= http://mrp3.com/ + +MAINTAINER= bobf@mrp3.com +COMMENT= Kernel driver to reset GPIO pins on shutdown for Raspberry Pi + +LICENSE= BSD2CLAUSE + +ONLY_FOR_ARCHS= armv6 armv7 + +KMODNAME= gpioshutdown +USES= kmod +USE_RC_SUBR= ${KMODNAME} + +.include <bsd.port.options.mk> + +do-install: + ${INSTALL_KLD} ${WRKSRC}/${KMODNAME}.ko ${STAGEDIR}${KMODDIR} + ${GZIP_CMD} ${WRKSRC}/gpioshutdown.4 + ${INSTALL} ${WRKSRC}/gpioshutdown.4.gz ${STAGEDIR}${LOCALBASE}/man/man4/gpioshutdown.4.gz + +.include <bsd.port.mk> Added: head/misc/raspberrypi-gpioshutdown/distinfo ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/misc/raspberrypi-gpioshutdown/distinfo Wed Aug 29 17:30:03 2018 (r478362) @@ -0,0 +1,3 @@ +TIMESTAMP = 1521490257 +SHA256 (raspberrypi-gpioshutdown-1.0.tar.gz) = 25d647309b54d253a11e7ae74998a7d382ce3a9fddb6bd7adace67f0d4f83c9f +SIZE (raspberrypi-gpioshutdown-1.0.tar.gz) = 7320 Added: head/misc/raspberrypi-gpioshutdown/files/gpioshutdown.in ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/misc/raspberrypi-gpioshutdown/files/gpioshutdown.in Wed Aug 29 17:30:03 2018 (r478362) @@ -0,0 +1,129 @@ +#!/bin/sh +# +# $FreeBSD$ +# +# PROVIDE: gpioshutdown +# REQUIRE: syslogd +# BEFORE: LOGIN +# KEYWORD: shutdown + +. /etc/rc.subr + +name="gpioshutdown" +start_cmd=${name}_start +unload_cmd=${name}_unload +reload_cmd=${name}_reload +stop_cmd=${name}_stop +rcvar=${name}_enable +extra_commands="unload reload" + +## Set defaults + +load_rc_config $name +: ${gpioshutdown_enable:="NO"} +: ${gpioshutdown_led_pin:="auto"} +: ${gpioshutdown_led_pin_set:="1"} + + +gpioshutdown_get_led_pin() +{ + if test "${gpioshutdown_led_pin}" == "auto" ; then + if test -e /dev/led/pwr -o -e /dev/led/PWR ; then + __led_pin=`ofwdump -P gpios /leds/pwr | grep -v "gpios:" | grep -v "Node" | \ + awk 'function hexdigit(x) { xx = index("0123456789ABCDEF",toupper(x)) - 1; return xx; } + function hexval(x) { return hexdigit(substr(x,1,1)) * 16 + hexdigit(substr(x,2,1)); } + { print hexval($5) * 65536 * 256 + hexval($6) * 65536 + hexval($7) * 256 + hexval($8); }'` + __led_pin_set="1" + elif test -e /dev/led/ok -o -e /dev/led/OK ; then + __led_pin=`ofwdump -P gpios /leds/ok | grep -v "gpios:" | grep -v "Node" | \ + awk 'function hexdigit(x) { xx = index("0123456789ABCDEF",toupper(x)) - 1; return xx; } + function hexval(x) { return hexdigit(substr(x,1,1)) * 16 + hexdigit(substr(x,2,1)); } + { print hexval($5) * 65536 * 256 + hexval($6) * 65536 + hexval($7) * 256 + hexval($8); }'` + __led_pin_set="0" + else + __led_pin="" + __led_pin_set="" + fi + else + if test -z "${gpioshutdown_led_pin}" ; then + __led_pin="" + __led_pin_set="" + else + __led_pin=`expr "${gpioshutdown_led_pin}" + 0` + __led_pin_set=`expr "${gpioshutdown_led_pin_set}" + 0` + fi + fi + + if test -z "$__led_pin" ; then + echo "" + else + echo "$__led_pin $__led_pin_set" + fi +} + +gpioshutdown_enable_led_pin() +{ + led_pin="$1" + led_pin_set="$2" + + sysctl kern.gpioshutdown.led_gpio=${led_pin} + sysctl kern.gpioshutdown.led_gpio_set=${led_pin_set} + + gpioctl -c ${led_pin} OUT + gpioctl ${led_pin} ${led_pin_set} +} + +gpioshutdown_start() +{ + if ( kldstat -q -m gpioshutdown ) ; then + echo "gpioshutdown installed" ; + else + echo "installing gpioshutdown" + kldload gpioshutdown.ko + fi + + led_pin=`gpioshutdown_get_led_pin` + + if test -n "$led_pin" ; then + gpioshutdown_enable_led_pin ${led_pin} + fi +} + +# 'stop' assumes system shutdown and does NOT +gpioshutdown_stop() +{ + echo "gpioshutdown - system shutdown" + echo "(kernel module NOT unloading; use 'unload' if you want to unload it)" +} + +gpioshutdown_unload() +{ + led_pin=`sysctl kern.gpioshutdown.led_gpio | awk '{ print $2; }'` + + if test -n "$led_pin" ; then + # disable the pin [this is a 'safe mode' way of doing it] + sysctl kern.gpioshutdown.led_gpio=-1 + + # LED was enabled - turn it back into an input + if test -n "$led_pin" ; then + if test "$led_pin" -ge 0 ; then + gpioctl -c ${led_pin} IN + fi + fi + fi + + if ( kldstat -q -m gpioshutdown ) ; then + echo "unloading gpioshutdown" ; + kldunload gpioshutdown + else + echo "gpioshutdown module not loaded" + fi +} + +gpioshutdown_reload() +{ + gpioshutdown_unload + gpioshutdown_start +} + +run_rc_command "$1" Added: head/misc/raspberrypi-gpioshutdown/pkg-descr ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/misc/raspberrypi-gpioshutdown/pkg-descr Wed Aug 29 17:30:03 2018 (r478362) @@ -0,0 +1,12 @@ +GPIO 'shutdown' Kernel module for the Raspberry Pi Model 1B and Model 2 + +The purpose of this module is to shut down all GPIOs prior to powering off +or rebooting a Raspberry Pi. + +The main reason for this is due to there being no real indicators that the +shutdown process has completed. By doing a shutdown of all of the GPIOs (such +that they act like inputs without pullup resistors), you can detect the 'high +impedence' state either with an LED or using some kind of exernal board (such +as an 'ATX Raspi' board). An external board could then detect the shutdown, +and power off the Raspberry Pi safely, and you won't have to fix the file +system due to problems caused by powering it down before it's safe to do so. Added: head/misc/raspberrypi-gpioshutdown/pkg-message ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/misc/raspberrypi-gpioshutdown/pkg-message Wed Aug 29 17:30:03 2018 (r478362) @@ -0,0 +1,20 @@ +raspberrypi-gpioshutdown kernel module: + +This port installs a startup script in your ${LOCALBASE} etc/rc.d directory +called 'gpioshutdown'. + +Once installed, either load the kernel module at boot time (using +/boot/loader.conf) or by adding the following entry to the /etc/rc.conf file +(recommended) by running this command: + + sysrc gpioshutdown_enable="YES" + +Or, you can simply load the module using the 'rc' system, by adding this +line to /etc/rc.conf instead: + + kld_list=gpioshutdown + +If you have other modules in 'kld_list' just add 'gpioshutdown' to the end of +that list. + +For more detailed information, type 'man 4 gpioshutdown'. Added: head/misc/raspberrypi-gpioshutdown/pkg-plist ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/misc/raspberrypi-gpioshutdown/pkg-plist Wed Aug 29 17:30:03 2018 (r478362) @@ -0,0 +1,2 @@ +/%%KMODDIR%%/gpioshutdown.ko +man/man4/gpioshutdown.4.gz
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