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authorJan-Simon Moeller <jsmoeller@linuxfoundation.org>2019-12-14 02:40:33 +0100
committerScott Murray <scott.murray@konsulko.com>2019-12-15 18:01:07 +0000
commit144da2be604c583117fd397028920a8cf4eb0b6c (patch)
treeb931b7346ffe3d28c1918bc48a1103a81f0f67f8 /recipes-core/udev/demo-i2c-udev-conf
parentc9276183ce123bd11d0b36ec60fc93386da9ccb8 (diff)
Add udev rules and scripts for demo platform configuration
Add recipes for udev rules and associated scripts 1) Support USB attached I2C devices for RTC and HVAC LED support. The RTC support loads and configures the required rtc-ds1307 driver, and sets the time from the RTC clock. The HVAC LED support configures the LED device names for use by the HVAC binding. The new demo-i2c-udev-conf recipe is added to DEMO_PLATFORM_CONF variable in packagegroup-agl-demo-platform to have them added to the agl-demo-platform image. Since they use udev rules to detect the corresponding hardware, this should be safe for all platforms. Change-Id: Id08571b43c7ae9275496980e0a5568e145a1f653 Signed-off-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org> (cherry picked from commit d412114c0cf132a77f3b3482c5440b1a1c961b77)
Diffstat (limited to 'recipes-core/udev/demo-i2c-udev-conf')
-rw-r--r--recipes-core/udev/demo-i2c-udev-conf/99-agl-led-rtc.rules20
-rwxr-xr-xrecipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite.sh22
-rw-r--r--recipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite@.service8
-rw-r--r--recipes-core/udev/demo-i2c-udev-conf/hvac.json.in7
-rwxr-xr-xrecipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach.sh11
-rw-r--r--recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach@.service4
6 files changed, 72 insertions, 0 deletions
diff --git a/recipes-core/udev/demo-i2c-udev-conf/99-agl-led-rtc.rules b/recipes-core/udev/demo-i2c-udev-conf/99-agl-led-rtc.rules
new file mode 100644
index 000000000..34fa06784
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf/99-agl-led-rtc.rules
@@ -0,0 +1,20 @@
+# skip instantiation of rtc in this processing
+ACTION=="add", SUBSYSTEM=="i2c", DRIVER=="rtc-ds1307", GOTO="hwclock_end"
+
+# load the required drivers (if not already present) - your job to make sure they are there !
+ACTION=="add", ENV{DEVTYPE}=="usb_interface", ENV{DRIVER}=="i2c-tiny-usb", RUN+="/usr/bin/logger 'Loading leds-blinkm'", RUN+="/sbin/modprobe leds-blinkm"
+ACTION=="add", ENV{DEVTYPE}=="usb_interface", ENV{DRIVER}=="i2c-tiny-usb", RUN+="/usr/bin/logger 'Loading rtc driver'", RUN+="/sbin/modprobe rtc-ds1307"
+
+# %k is the blinkm i2c device e.g. 6-0009
+ACTION=="add", ENV{DRIVER}=="blinkm", SUBSYSTEM=="i2c", RUN+="/usr/bin/logger 'the blinkm device is %k'", TAG+="systemd", ENV{SYSTEMD_WANTS}="hvac-json-in-rewrite@%k.service", GOTO="very_end"
+# FIXME: We do not exclude the blinkm on the next lines, yet. The rule is too broad, but that is all we know already. Above is actually later in time.
+# For now this is not critical as the rtc init will just fail and we're done.
+
+# %k is the i2c bus e.g. i2c-6
+ACTION=="add", SUBSYSTEM=="i2c", ATTRS{idProduct}=="c631", TAG+="systemd", ENV{SYSTEMD_WANTS}="rtc-i2c-attach@%k.service"
+
+# GOTO EXIT
+LABEL="hwclock_end"
+ACTION=="add", SUBSYSTEM=="rtc", RUN+="/bin/sleep 1", RUN+="/sbin/hwclock -f /dev/%k --hctosys --utc", TAG+="systemd"
+
+LABEL="very_end"
diff --git a/recipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite.sh b/recipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite.sh
new file mode 100755
index 000000000..555766015
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# (C) 2018 Jan-Simon Möller, dl9pf@gmx.de, jsmoeller@linuxfoundation.org
+# License: Apache License 2.0
+
+#set -x
+set -e
+
+if [ $1 ] ; then
+ # The device is always 0009 -> 9 . Only change is the i2c IF .
+ LED=`echo $1 | sed -e "s#0009#9#g"`
+ if [ $? -eq 0 ] ; then
+ echo "$LED"
+ sed -e "s#@DEVICE@#$LED#" /etc/hvac.json.in > /etc/hvac.json
+ else
+ echo "Invalid argument"
+ exit 1
+ fi
+else
+ echo "Need argument"
+ exit 1
+fi \ No newline at end of file
diff --git a/recipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite@.service b/recipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite@.service
new file mode 100644
index 000000000..2fb099593
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf/hvac-json-in-rewrite@.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=AGL hvac LED write /etc/hvac.json
+#Before= todo: add dependency of hvac service ?
+
+[Service]
+Type=oneshot
+ExecStartPre=/usr/bin/logger '#hvac i2c device has been attached - %i'
+ExecStart=/usr/sbin/hvac-json-in-rewrite.sh %i
diff --git a/recipes-core/udev/demo-i2c-udev-conf/hvac.json.in b/recipes-core/udev/demo-i2c-udev-conf/hvac.json.in
new file mode 100644
index 000000000..01541a600
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf/hvac.json.in
@@ -0,0 +1,7 @@
+{
+ "ledtemp": {
+ "red": "/sys/class/leds/blinkm-@DEVICE@-red/brightness",
+ "green": "/sys/class/leds/blinkm-@DEVICE@-green/brightness",
+ "blue": "/sys/class/leds/blinkm-@DEVICE@-blue/brightness"
+ }
+}
diff --git a/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach.sh b/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach.sh
new file mode 100755
index 000000000..b45d83aae
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# ds1307
+echo "ds1307 0x68" > /sys/class/i2c-dev/$1/device/new_device
+
+#ds3231
+#echo "ds1307 0x57" > /sys/class/i2c-dev/$1/device/new_device
+
+#pcf85063
+#echo "pcf85063 0x51" > /sys/class/i2c-dev/$1/device/new_device
+
diff --git a/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach@.service b/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach@.service
new file mode 100644
index 000000000..8788a25d4
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach@.service
@@ -0,0 +1,4 @@
+[Service]
+Type=oneshot
+ExecStartPre=/bin/echo '#i2c rtc device has been attached'
+ExecStart=/usr/sbin/rtc-i2c-attach.sh %i