[FE training-materials-updates] Add a new version of mlbini.c, able to take user input

[Alexandre Belloni]

Repository : git://git.free-electrons.com/training-materials.git

On branch  : master
Link       : http://git.free-electrons.com/training-materials/commit/?id=6b5c87eb0c8a9f847b3b7988715a0f8db072ed3e

>---------------------------------------------------------------

commit 6b5c87eb0c8a9f847b3b7988715a0f8db072ed3e
Author: Alexandre Belloni <alexandre.belloni at free-electrons.com>
Date:   Wed Jun 12 14:00:50 2013 +0200

    Add a new version of mlbini.c, able to take user input


>---------------------------------------------------------------

6b5c87eb0c8a9f847b3b7988715a0f8db072ed3e
 lab-data/android/native-app/mlbin.c            |   48 +++++++++++++++++-------
 labs/android-native-app/android-native-app.tex |   13 ++++++-
 2 files changed, 46 insertions(+), 15 deletions(-)

diff --git a/lab-data/android/native-app/mlbin.c b/lab-data/android/native-app/mlbin.c
index 1938f0f..f5133ba 100644
--- a/lab-data/android/native-app/mlbin.c
+++ b/lab-data/android/native-app/mlbin.c
@@ -148,22 +148,42 @@ int mlbin_stop(void)
 
 int main(void)
 {
+	int ret;
+	char dir;
+	int time;
+
 	mlbin_init_usb();
-	mlbin_move_down();
-	sleep(5);
-	mlbin_stop();
-	mlbin_move_left();
-	sleep(5);
-	mlbin_stop();
-	mlbin_fire();
-	sleep(5);
-	mlbin_stop();
-	mlbin_move_up();
-	sleep(5);
-	mlbin_stop();
-	mlbin_move_right();
-	sleep(5);
 	mlbin_stop();
+
+	do {
+		ret = scanf("%c %d", &dir, &time);
+		if (ret != 2)
+			continue;
+
+		printf("%c for %d\n", dir, time);
+		switch(dir) {
+			case 'L':
+				mlbin_move_left();
+				break;
+			case 'R':
+				mlbin_move_right();
+				break;
+			case 'U':
+				mlbin_move_up();
+				break;
+			case 'D':
+				mlbin_move_down();
+				break;
+			case 'F':
+				mlbin_fire();
+				break;
+			default:
+				break;
+		}
+		sleep(time);
+		mlbin_stop();
+	} while(ret != EOF);
+
 	mlbin_free_usb();
 
 	return 0;
diff --git a/labs/android-native-app/android-native-app.tex b/labs/android-native-app/android-native-app.tex
index 271afac..ff87428 100644
--- a/labs/android-native-app/android-native-app.tex
+++ b/labs/android-native-app/android-native-app.tex
@@ -12,6 +12,7 @@ Copy the \code{mlbin.c} file from the
 \code{$HOME/felabs/android/native-app} directory and put it into a new
 folder in your device folder called \code{bin}.
 
+
 Just as for \code{libusb}, you now need to make an \code{Android.mk} file
 giving all the details needed by the build system to compile. But
 unlike \code{libusb}, this binary is an executable and depends on another
@@ -19,7 +20,17 @@ piece of software.
 
 Make it compile and be integrated in the generated images. Once you
 have the images, boot the board, plug a missile launcher and test the
-application. You should see the launcher move.
+application. You can then use commands to move the missile launcher:
+\begin{itemize}
+	\item L - go left
+	\item R - go right
+	\item U - go up
+	\item D - go down
+	\item F - actionnate trigger
+\end{itemize}
+
+For example, use \code{L 1 U 1 F 5} will turn left for one second, up
+for one second and fire a missile.
 
 \section{Fix the Problems}