Add udev rules and scripts for demo platform configurationicefish_8.99.3icefish/8.99.38.99.3

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>

1 files changed, 20 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"