Add license, more C demo files, .gitignore and update README.md

.gitignore

@@ -0,0 +1,4 @@
+*.lx
+*.o
+.depend
+

Makefile

@@ -8,7 +8,7 @@
 LIBDIR = /usr/lib/brickos
 KERNEL = $(LIBDIR)/brickOS
 
-PROGRAMS=helloworld.lx
+PROGRAMS=helloworld.lx linetrack.lx robots.lx rover.lx sound.lx
 
 # extra dynamic sources
 DOBJECTS=

README.md

@@ -1,2 +1,6 @@
 # BrickOsTest
-Testing brickOS
+
+This repository contains some of the C programming language demo files of brickOS.
+
+See also: https://sourceforge.net/projects/brickos/
+

linetrack.c

@@ -0,0 +1,113 @@
+/*! \file   linetrack.c
+    \brief  A simple line tracker demo 
+    \author Markus L. Noga <markus@noga.de>
+    
+    A simple line tracker demo.
+    
+    Lines are assumed to curve to the right, and initially encountered
+    from the right (for example, from the inside of the test pad).
+    Straight line tracking needs to define STRAIGHT_LINE.
+    
+    Assumes motors on A,C, light sensors on port 2
+*/
+
+/*
+ *  The contents of this file are subject to the Mozilla Public License
+ *  Version 1.0 (the "License"); you may not use this file except in
+ *  compliance with the License. You may obtain a copy of the License at
+ *  http://www.mozilla.org/MPL/
+ *
+ *  Software distributed under the License is distributed on an "AS IS"
+ *  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+ *  License for the specific language governing rights and limitations
+ *  under the License.
+ *
+ *  The Original Code is legOS code, released October 17, 1999.
+ *
+ *  The Initial Developer of the Original Code is Markus L. Noga.
+ *  Portions created by Markus L. Noga are Copyright (C) 1999
+ *  Markus L. Noga. All Rights Reserved.
+ *
+ *  Contributor(s): Markus L. Noga <markus@noga.de>
+ */
+
+#include <config.h>
+#if defined(CONF_DSENSOR) && defined(CONF_DMOTOR)
+
+#include <conio.h>
+#include <unistd.h>
+#include <tm.h>
+
+#include <dsensor.h>
+#include <dmotor.h>
+
+#define LIGHTSENS       SENSOR_2
+#define DARK_THRESH     0x40
+#define BRIGHT_THRESH   0x48
+
+#define NORMAL_SPEED (2*MAX_SPEED/3)
+#define TURN_SPEED   (MAX_SPEED)
+
+// #define STRAIGHT_LINE
+
+
+static wakeup_t dark_found(wakeup_t data) {
+  return LIGHT(LIGHTSENS)<(unsigned short)data;
+}
+
+static wakeup_t bright_found(wakeup_t data) {
+  return LIGHT(LIGHTSENS)>(unsigned short)data;
+}
+
+static void locate_line() {
+  motor_a_speed(NORMAL_SPEED);
+  motor_c_speed(NORMAL_SPEED);
+  motor_a_dir(fwd);
+  motor_c_dir(fwd);
+
+  wait_event(dark_found,DARK_THRESH);
+}
+
+static void follow_line() {
+  int dir=0;
+
+
+  while (!shutdown_requested()) {
+    motor_a_speed(NORMAL_SPEED);
+    motor_c_speed(NORMAL_SPEED);
+    motor_a_dir(fwd);
+    motor_c_dir(fwd);
+
+    if (wait_event(bright_found,BRIGHT_THRESH) != 0)
+    {    
+	    if(dir==0)
+  	    motor_a_dir(rev);
+	    else
+  	    motor_c_dir(rev);
+#ifdef STRAIGHT_LINE
+    		dir=!dir;
+#endif
+
+	    motor_a_speed(TURN_SPEED);
+  	  motor_c_speed(TURN_SPEED);
+
+    	wait_event(dark_found,DARK_THRESH);
+    }
+  }
+}
+
+int main(int argc, char *argv[]) {
+  ds_active(&LIGHTSENS);
+
+  locate_line();
+  follow_line();
+
+  return 0;
+}
+#else
+#warning linetrack.c requires CONF_DSENSOR and CONF_DMOTOR
+#warning linetrack demo will do nothing
+int main(int argc, char *argv[]) {
+  return 0;
+}
+#endif // defined(CONF_DSENSOR) && defined(CONF_DMOTOR)

robots.c

@@ -0,0 +1,30 @@
+// Plays "wir sind die roboter" theme by Kraftwerk.
+
+#include <config.h>
+#if defined(CONF_DSOUND)
+
+#include <dsound.h>
+#include <tm.h>
+
+//! "wir sind die roboter" theme by Kraftwerk
+static const note_t robots[] = { 
+  { PITCH_D4,  2 } , { PITCH_C4,  1 } , { PITCH_D4,  1 },
+  { PITCH_F4,  1 } , { PITCH_D4,  1 } , { PITCH_D4,  2 },
+  { PITCH_F4,  2 } , { PITCH_G4,  1 } , { PITCH_C5,  1 },
+  { PITCH_A4,  2 } , { PITCH_D4,  2 } , { PITCH_END, 0 }
+};
+
+int main(int argc,char *argv[]) {
+  while (!shutdown_requested()) {
+    if (wait_event(dsound_finished,0) != 0)
+	    dsound_play(robots);
+  }
+  return 0;
+}
+#else // CONF_DSOUND
+#warning robots.c requires CONF_DSOUND
+#warning robots demo will do nothing
+int main(int argc, char *argv[]) {
+  return 0;
+}
+#endif // CONF_DSOUND

rover.c

@@ -0,0 +1,107 @@
+/*! \file   rover.c
+    \brief  A simple rover demo
+    \author Markus L. Noga <markus@noga.de>
+
+    a simple rover that evades obstacles.
+    assumes motors on A,C, touch sensors on port 1,3
+*/
+
+/*
+ *  The contents of this file are subject to the Mozilla Public License
+ *  Version 1.0 (the "License"); you may not use this file except in
+ *  compliance with the License. You may obtain a copy of the License at
+ *  http://www.mozilla.org/MPL/
+ *
+ *  Software distributed under the License is distributed on an "AS IS"
+ *  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
+ *  License for the specific language governing rights and limitations
+ *  under the License.
+ *
+ *  The Original Code is legOS code, released October 17, 1999.
+ *
+ *  The Initial Developer of the Original Code is Markus L. Noga.
+ *  Portions created by Markus L. Noga are Copyright (C) 1999
+ *  Markus L. Noga. All Rights Reserved.
+ *
+ *  Contributor(s): Markus L. Noga <markus@noga.de>
+ */
+
+#include <config.h>
+#if defined(CONF_DSENSOR) && defined(CONF_DMOTOR)
+
+#include <conio.h>
+#include <unistd.h>
+
+#include <dsensor.h>
+#include <dmotor.h>
+
+#include <sys/lcd.h>
+#include <tm.h>
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Functions
+//
+///////////////////////////////////////////////////////////////////////////////
+
+wakeup_t sensor_press_wakeup(wakeup_t data);
+
+// the rover driver
+//
+int main(int argc, char *argv[]) {
+  int dir=0;
+
+  while (!shutdown_requested()) {
+    motor_a_speed(2*MAX_SPEED/3);		// go!
+    motor_c_speed(2*MAX_SPEED/3);
+
+    motor_a_dir(fwd);
+    motor_c_dir(fwd);
+
+    cputs("fwwd ");
+
+    if (wait_event(&sensor_press_wakeup, 0) != 0) {
+	    if(SENSOR_1<0xf000)    	      // keep in mind.
+  	    dir=0;
+    	else
+      	dir=1;
+
+	    // back up
+  	  //
+    	motor_a_dir(rev);
+	    motor_c_dir(rev);
+
+  	  cputs("rev  ");
+
+	    msleep(500);
+
+  	  motor_a_speed(MAX_SPEED);		// go!
+    	motor_c_speed(MAX_SPEED);
+
+	    if(dir==1) {
+  	    motor_c_dir(fwd);
+    	  cputs("left ");
+	    } else {
+  	    motor_a_dir(fwd);
+    	  cputs("right");
+	    }
+
+	    msleep(500);
+	  }
+  }
+
+  return 0;
+}
+
+wakeup_t sensor_press_wakeup(wakeup_t data) {
+	lcd_refresh();
+	return (SENSOR_1<0xf000) || (SENSOR_3<0xf000);
+}
+
+#else
+#warning rover.c requires CONF_DMOTOR and CONF_DSENSOR
+#warning rover demo will do nothing
+int main(int argc, char *argv[]) {
+  return 0;
+}
+#endif // CONF_DSENSOR, CONF_DMOTOR

sound.c

@@ -0,0 +1,83 @@
+/*sound.c*/
+
+#include <config.h>
+#if defined(CONF_DSOUND)
+#include <dsound.h>
+#include <tm.h>
+
+/*array of notes that make up the refrain*/
+/*of Devil with a Blue Dress*/
+
+static const note_t devil[] = { 
+  { PITCH_G4, QUARTER },
+  { PITCH_G4, QUARTER },
+  { PITCH_G4, QUARTER },
+  { PITCH_G4, QUARTER },
+  { PITCH_G4, HALF },
+  { PITCH_G4, HALF },
+
+  { PITCH_G4, HALF },
+  { PITCH_G4, HALF },
+  { PITCH_G4, HALF },
+  { PITCH_G4, HALF },
+
+  { PITCH_F4, QUARTER },
+  { PITCH_F4, QUARTER },
+  { PITCH_F4, QUARTER },
+  { PITCH_F4, QUARTER },
+  { PITCH_F4, HALF },
+  { PITCH_F4, HALF },
+
+  { PITCH_F4, HALF },
+  { PITCH_PAUSE, HALF },
+  { PITCH_PAUSE, HALF },
+  { PITCH_PAUSE, HALF },
+
+  { PITCH_E4, QUARTER },
+  { PITCH_E4, QUARTER },
+  { PITCH_E4, QUARTER },
+  { PITCH_E4, QUARTER },
+  { PITCH_F4, HALF },
+  { PITCH_F4, HALF },
+
+  { PITCH_E4, HALF },
+  { PITCH_E4, HALF },
+  { PITCH_F4, HALF },
+  { PITCH_F4, HALF },
+
+  { PITCH_E4, QUARTER },
+  { PITCH_E4, QUARTER },
+  { PITCH_E4, QUARTER },
+  { PITCH_E4, QUARTER },
+  { PITCH_F4, HALF },
+  { PITCH_F4, HALF },
+
+  { PITCH_E4, HALF },
+  { PITCH_PAUSE, HALF }, 
+  { PITCH_PAUSE, HALF }, 
+  { PITCH_PAUSE, HALF }, 
+  { PITCH_END, 0 }
+};
+
+int main(int argc,char *argv[]) {
+
+  /*The default makes this a really, really slow song*/
+  /*So, we speed it up a little bit.*/
+  dsound_set_duration(40);
+
+  /*now, we play it*/
+  while (!shutdown_requested()) {
+    if (wait_event(dsound_finished,0) != 0)
+    	dsound_play(devil);
+    sleep(1);
+  }
+
+  return 0;
+}
+#else
+#warning sound.c requires CONF_DSOUND which is not set
+#warning sound demo will do nothing
+int main(int argc, char *argv[]) {
+  return 0;
+}
+#endif // CONF_DSOUND