sidekiqz2: add support for new board

This patch adds support for the Sidekiq Z2 board from Epiq Solutions.

It's a copy of Pluto with some adaptations inspired from M2k.
Seems that M2k re-uses some Pluto parts.
The same thing has been done for SidekiqZ2 to avoid some code duplication.

The `msd` folder [which contains files that will be mounted on the user's
system] contains only some stub files that may be modified later.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>

board/sidekiqz2/S23udc

@@ -0,0 +1,144 @@
+#!/bin/sh
+
+source /etc/device_config
+
+CONFIGFS=/sys/kernel/config/usb_gadget
+GADGET=$CONFIGFS/composite_gadget
+IIOD_OPTS="-D -n $ENDPOINTS -F /dev/iio_ffs"
+UDC_HANDLE_SUSPEND=`fw_printenv -n udc_handle_suspend 2> /dev/null || echo 0`
+
+create_iiod_context_attributes() {
+	model=$1
+	serial=$2
+	model_variant=$3
+
+	echo "[Context Attributes]" > /etc/libiio.ini
+	echo "hw_model=$model" >> /etc/libiio.ini
+
+	if [ "$model_variant" == "n25q256a" ]
+	then
+		echo "hw_model_variant=0" >> /etc/libiio.ini
+	else
+		echo "hw_model_variant=1" >> /etc/libiio.ini
+	fi
+
+	echo -e "hw_serial=$serial\n" >> /etc/libiio.ini
+	echo "fw_version=`grep device-fw /opt/VERSIONS | cut -d ' ' -f 2`" >> /etc/libiio.ini
+	if [ "$USBPID" == "0x5a32" ]; then
+		for dev in /sys/bus/iio/devices/*; do
+			[ `cat ${dev}/name` == "ad9361-phy" ] && DEV_NAME=`basename ${dev}`
+		done
+
+		echo ad9361-phy,xo_correction=`cat /sys/bus/iio/devices/${DEV_NAME}/xo_correction` >> /etc/libiio.ini
+		echo ad9361-phy,model=`cat /sys/bus/iio/devices/${DEV_NAME}/of_node/compatible` | sed 's/adi,//g' >> /etc/libiio.ini
+	fi
+}
+
+case "$1" in
+  start)
+	echo -n "Starting UDC Gadgets: "
+	mount configfs -t configfs /sys/kernel/config 2> /dev/null
+
+	mkdir -p $GADGET
+
+	model=`cat /sys/firmware/devicetree/base/model | tr / -`
+	model_variant=`dmesg | grep m25p80 | grep Kbytes | cut -d ' ' -f 3`
+
+	serial=`dmesg | grep SPI-NOR-UniqueID`
+	serial=${serial#*SPI-NOR-UniqueID }
+
+	create_iiod_context_attributes "$model" "$serial" "$model_variant"
+
+	echo $serial > /etc/serial
+	sha1=`echo $serial | sha1sum`
+
+	echo 0x0456 > $GADGET/idVendor
+	echo $USBPID > $GADGET/idProduct
+
+	mkdir -p $GADGET/strings/0x409
+	echo "Epiq Solutions" > $GADGET/strings/0x409/manufacturer
+	echo $PRODUCT > $GADGET/strings/0x409/product
+	echo $serial > $GADGET/strings/0x409/serialnumber
+
+	mkdir -p $GADGET/functions/ffs.iio_ffs
+	mkdir -p $GADGET/functions/acm.usb0
+	mkdir -p $GADGET/functions/rndis.0
+	mkdir -p $GADGET/functions/mass_storage.0
+
+#	echo /opt/vfat.img > $GADGET/functions/mass_storage.0/lun.0/file
+	echo Y > $GADGET/functions/mass_storage.0/lun.0/removable
+
+	host_addr=`echo -n 00:E0:22; echo $sha1 | dd bs=1 count=6 2>/dev/null | hexdump -v -e '/1 ":%01c""%c"'`
+	dev_addr=`echo -n 00:05:F7; echo $sha1 | dd bs=1 count=6 skip=6 2>/dev/null | hexdump -v -e '/1 ":%01c""%c"'`
+
+	echo $host_addr > $GADGET/functions/rndis.0/host_addr
+	echo $dev_addr > $GADGET/functions/rndis.0/dev_addr
+
+	mkdir -p $GADGET/configs/c.1
+	mkdir -p $GADGET/configs/c.1/strings/0x409
+	echo "RNDIS/MSD/ACM/IIOUSBD" > $GADGET/configs/c.1/strings/0x409/configuration
+	echo 500 > $GADGET/configs/c.1/MaxPower
+
+	ln -s $GADGET/functions/rndis.0 $GADGET/configs/c.1
+	ln -s $GADGET/functions/mass_storage.0 $GADGET/configs/c.1
+	ln -s $GADGET/functions/acm.usb0 $GADGET/configs/c.1
+	ln -s $GADGET/functions/ffs.iio_ffs $GADGET/configs/c.1/ffs.iio_ffs
+
+	mkdir -p /dev/iio_ffs
+	mount iio_ffs -t functionfs /dev/iio_ffs 2> /dev/null
+
+	start-stop-daemon -S -b -q -m -p /var/run/iiod.pid -x  /usr/sbin/iiod  -- $IIOD_OPTS
+	sleep 0.2
+
+	echo ci_hdrc.0 > $GADGET/UDC
+
+	[ $? = 0 ] && echo "OK" || echo "FAIL"
+
+	if [ "$UDC_HANDLE_SUSPEND" == "1" ]; then
+		start-stop-daemon -S -b -q -m -p /var/run/udc_handle_suspend.pid -x  /sbin/udc_handle_suspend.sh
+	fi
+
+	;;
+  stop)
+	echo "Stopping UDC Gadgets"
+
+	if [ "$UDC_HANDLE_SUSPEND" == "1" ]; then
+		start-stop-daemon -K -q -p /var/run/udc_handle_suspend.pid 2>/dev/null
+	fi
+
+	echo "" > $GADGET/UDC
+	start-stop-daemon -K -q -p /var/run/iiod.pid 2>/dev/null
+
+	rm $GADGET/configs/c.1/rndis.0
+	rm $GADGET/configs/c.1/mass_storage.0
+	rm $GADGET/configs/c.1/acm.usb0
+	rm $GADGET/configs/c.1/ffs.iio_ffs
+
+	rmdir $GADGET/strings/0x409
+	rmdir $GADGET/configs/c.1/strings/0x409
+	rmdir $GADGET/configs/c.1
+
+	rmdir $GADGET/functions/ffs.iio_ffs
+	#rmdir $GADGET/functions/acm.usb0
+	rmdir $GADGET/functions/rndis.0
+	rmdir $GADGET/functions/mass_storage.0
+
+	rmdir $GADGET 2> /dev/null
+
+	;;
+  restart|reload)
+	"$0" stop
+	"$0" start
+	;;
+  *)
+	echo "Usage: $0 {start|stop|restart}"
+	exit 1
+esac
+
+exit $?
+
+
+
+
+
+