prod/: added atusb-flash script and adapted infrastructure

- atusb-flash: flash boot loader and application
- Makefile (PHONY, flash): invoke atusb-flash
- Common (REF_EXEC): execute a command on the host with the reference
  device
- Common (_doit, expect, expect_re): moved command execution to separate
  function, for better sharing
- Common (doit): new function for executing a command without grepping
  through its output
- Common (begin): make profile argument optional

prod/Common

@@ -18,6 +18,12 @@ DUT=$2
 LOG=_log
 >$LOG
 
+if [ ${REF#net:} = $REF ]; then
+	REF_EXEC=
+else
+	REF_EXEC="ssh `echo $REF | sed 's/^net://;s/,.*$//'`"
+fi
+
 if [ ${DUT#net:} = $DUT ]; then
 	LOCAL_EXEC=
 	LOCAL_DUT=$DUT
@@ -92,9 +98,22 @@ cmd()
 #####  Evaluation  ############################################################
 
 
-expect()
+_doit()
 {
 	eval "$cmd" >_out 2>&1 || { echo "exit code $?" | fail; exit 1; }
+}
+
+
+doit()
+{
+	_doit
+	pass
+}
+
+
+expect()
+{
+	_doit
 	fgrep -q "$@" _out || { echo "expected $*" | fail; exit 1; }
 	pass
 }
@@ -102,7 +121,7 @@ expect()
 
 expect_re()
 {
-	eval "$cmd" >_out 2>&1 || { echo "exit code $?" | fail; exit 1; }
+	_doit
 	grep -q "$@" _out || { echo "expected $*" | fail; exit 1; }
 	pass
 }
@@ -113,14 +132,12 @@ expect_re()
 
 begin()
 {
-	if [ -z "$1" ]; then
-		echo "usage: begin profile [clock-ref]" 1>&2
-		exit 1
-	fi
-	PROFILE=$1
-	if [ ! -r $PROFILE ]; then
-		echo "$PROFILE not found" 1>&2
-		exit 1
+	if [ "$1" ]; then
+		PROFILE=$1
+		if [ ! -r $PROFILE ]; then
+			echo "$PROFILE not found" 1>&2
+			exit 1
+		fi
 	fi
 	if [ "$2" ]; then
 		CLKREF=$2

prod/Makefile

@@ -3,7 +3,7 @@
 #
 
 
-.PHONY:	all ben usb
+.PHONY:	all ben usb flash
 
 all:	ben
 
@@ -13,6 +13,9 @@ ben:	ben.profile
 usb:	usb.profile
 	./atusb net:ben usb
 
+flash:
+	./atusb-flash net:ben usb
+
 ben.profile:
 	cp ../tools/atrf-path/profile.example $@
 

prod/atusb-flash

@@ -0,0 +1,47 @@
+#!/bin/sh
+
+. ./Common
+
+
+USB_ID=20b7:1540
+FW_BOOT_FILE=boot.hex
+FW_APP_FILE=atusb.bin
+
+
+#
+# This invocation of avrdude is derived from ben-wpan/atusb/fw/Makefile,
+# target "prog".
+#
+
+flash()
+{
+	step "Flash boot loader"
+	cmd "$REF_EXEC avrdude -F -p atmega32u2 -c nanonote_atusb -e \
+                  -U flash:w:$FW_BOOT_FILE:i \
+                  -U lfuse:w:0x60:m \
+                  -U hfuse:w:0xd8:m \
+                  -U lock:w:0x2f:m"
+	expect "lock verified"
+}
+
+
+enumerate()
+{
+	step "Enumeration"
+	cmd "$LOCAL_EXEC usbwait -i 0.1 -t 30 $USB_ID"
+	doit
+}
+
+
+dfu()
+{
+	step "DFU application"
+	cmd "$LOCAL_EXEC dfu-util -d $USB_ID -D $FW_APP_FILE"
+	expect "No error"
+}
+
+
+begin
+flash
+enumerate
+dfu