Add udev rules and scripts for demo platform configuration

Add recipes for udev rules and associated scripts provided by
Jan-Simon Möller to:
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.
2) Detect Fiberdyne MOST attached amp and install the required 4A
   HAL.

The new demo-i2c-udev-conf and demo-most-udev-conf recipes are
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: I9dc78b8e63418079d14e1d1e2a832840a0c97ea8
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

11 files changed, 152 insertions, 3 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 00000000..34fa0678
--- /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 00000000..55576601
--- /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 00000000..2fb09959
--- /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 00000000..01541a60
--- /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 00000000..b45d83aa
--- /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/$1/device/new_device
+
diff --git a/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach@.service b/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach@.service
new file mode 100644
index 00000000..8788a25d
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf/rtc-i2c-attach@.service
@@ -0,0 +1,4 @@
+[Service]
+Type=oneshot
+ExecStartPre=/bin/echo '#i2c rtc device has been attached'
+ExecStart=/usr/sbin/rtc-i2c-attach.sh %i
diff --git a/recipes-core/udev/demo-i2c-udev-conf_1.0.bb b/recipes-core/udev/demo-i2c-udev-conf_1.0.bb
new file mode 100644
index 00000000..04101cf3
--- /dev/null
+++ b/recipes-core/udev/demo-i2c-udev-conf_1.0.bb
@@ -0,0 +1,35 @@
+SUMMARY = "USB attached I2C demo hardware udev configuration"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+SRC_URI = "file://hvac-json-in-rewrite.sh \
+           file://rtc-i2c-attach.sh \
+           file://hvac-json-in-rewrite@.service \
+           file://rtc-i2c-attach@.service \
+           file://99-agl-led-rtc.rules \
+           file://hvac.json.in \
+"
+
+do_compile[noexec] = "1"
+
+do_install() {
+    install -d ${D}${sysconfdir}
+    install -m 0644 ${WORKDIR}/hvac.json.in ${D}${sysconfdir}
+
+    install -d ${D}${sbindir}
+    install -m 0755 ${WORKDIR}/hvac-json-in-rewrite.sh ${D}${sbindir}
+    install -m 0755 ${WORKDIR}/rtc-i2c-attach.sh ${D}${sbindir}
+
+    if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false', d)}; then
+        install -d ${D}${systemd_system_unitdir}
+        install -m 0644 ${WORKDIR}/hvac-json-in-rewrite@.service ${D}${systemd_system_unitdir}
+        install -m 0644 ${WORKDIR}/rtc-i2c-attach@.service ${D}${systemd_system_unitdir}
+
+        install -d ${D}${sysconfdir}/udev/rules.d
+        install -m 0644 ${WORKDIR}/99-agl-led-rtc.rules ${D}${sysconfdir}/udev/rules.d/
+    fi
+}
+
+FILES_${PN} += "${systemd_unitdir}"
+
+RDEPENDS_${PN} += "bash"
diff --git a/recipes-core/udev/demo-most-udev-conf/99-agl-fibredyne-amp.rules b/recipes-core/udev/demo-most-udev-conf/99-agl-fibredyne-amp.rules
new file mode 100644
index 00000000..5385a6a7
--- /dev/null
+++ b/recipes-core/udev/demo-most-udev-conf/99-agl-fibredyne-amp.rules
@@ -0,0 +1,8 @@
+# Smallest rule, we might get more specific
+ACTION=="add", SUBSYSTEM=="sound", ENV{ID_VENDOR}=="Microchip-SMSC", ENV{ID_MODEL}=="OS8*", RUN+="/usr/sbin/enable-agl-demo-hal.sh"
+#, ENV{ID_MODEL}=="OS81210"
+#, ENV{ID_SERIAL}=="Microchip-SMSC_OS81210_0200-0000000C"
+#, ENV{ID_SERIAL}=="Microchip-SMSC_OS81210_0200-0000000C-02"
+#                   Microchip-SMSC_OS81118_0000-0000004C
+# Note: this will not work for a SOTA filesystem !!
+
diff --git a/recipes-core/udev/demo-most-udev-conf/enable-agl-demo-hal.sh b/recipes-core/udev/demo-most-udev-conf/enable-agl-demo-hal.sh
new file mode 100644
index 00000000..dd0fa231
--- /dev/null
+++ b/recipes-core/udev/demo-most-udev-conf/enable-agl-demo-hal.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+rm -f /usr/libexec/agl/4a-hal/etc/*.json || true
+
+cp /usr/libexec/agl/4a-hal/etc.available/hal-4a-greenbox.json /usr/libexec/agl/4a-hal/etc/
+
+
diff --git a/recipes-core/udev/demo-most-udev-conf_1.0.bb b/recipes-core/udev/demo-most-udev-conf_1.0.bb
new file mode 100644
index 00000000..ab71f96b
--- /dev/null
+++ b/recipes-core/udev/demo-most-udev-conf_1.0.bb
@@ -0,0 +1,19 @@
+SUMMARY = "MOST demo hardware udev configuration"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+SRC_URI = "file://99-agl-fibredyne-amp.rules \
+           file://enable-agl-demo-hal.sh \
+"
+
+do_compile[noexec] = "1"
+
+do_install() {
+    install -d ${D}${sbindir}
+    install -m 0755 ${WORKDIR}/enable-agl-demo-hal.sh ${D}${sbindir}
+
+    install -d ${D}${sysconfdir}/udev/rules.d
+    install -m 0644 ${WORKDIR}/99-agl-fibredyne-amp.rules ${D}${sysconfdir}/udev/rules.d/
+}
+
+RDEPENDS_${PN} += "bash"
diff --git a/recipes-platform/packagegroups/packagegroup-agl-demo-platform.bb b/recipes-platform/packagegroups/packagegroup-agl-demo-platform.bb
index d7dddb7d..1552558f 100755
--- a/recipes-platform/packagegroups/packagegroup-agl-demo-platform.bb
+++ b/recipes-platform/packagegroups/packagegroup-agl-demo-platform.bb
@@ -66,10 +66,18 @@ DEMO_MAPS_LOCALE ?= "uk"
 DEMO_PRELOAD = "${@bb.utils.contains("DISTRO_FEATURES", "agl-demo-preload", " navigation-maps-${DEMO_MAPS_LOCALE} poiapp-api-key", "",d)}"
 
 # Hook for demo platform configuration
-# ATM, only used to disable btwilink module on M3ULCB + Kingfisher by default,
-# setting DEMO_ENABLE_BTWILINK to "true" in local.conf / site.conf re-enables.
+# ATM used for:
+# 1) Adding udev configuration and scripts for supporting USB attached
+#    I2C devices for RTC and HVAC LED support.
+# 2) Adding udev configuration and script for detecting Fiberdyne MOST
+#    attached amp and installing the required 4A HAL.
+# 3) Disabling btwilink module on M3ULCB + Kingfisher by default.  To
+#    re-enable, set DEMO_ENABLE_BTWILINK to "true" in local.conf/site.conf.
 DEMO_ENABLE_BTWILINK ?= ""
-DEMO_PLATFORM_CONF = ""
+DEMO_PLATFORM_CONF = " \
+    demo-i2c-udev-conf \
+    demo-most-udev-conf \
+"
 DEMO_PLATFORM_CONF_append_m3ulcb = "${@bb.utils.contains("DEMO_ENABLE_BTWILINK", "true", "", " btwilink-disable-conf", d)}"
 
 RDEPENDS_${PN}_append = " \