fixed gamepad and pwm codegen bugs, added init function

refs 7890

org.fortiss.af3.platform.raspberry/trunk/lib/src/Gamepad.c

@@ -115,19 +115,19 @@ GEN_TYPE_boolean gp_btnR2_read() {
 }
 
 GEN_TYPE_double gp_btnLX_read() {
-    return 0.0;
+    return ie.btns.js1_lr;
 }
 
 GEN_TYPE_double gp_btnLY_read() {
-    return 0.0;
+    return ie.btns.js1_ud;
 }
 
 GEN_TYPE_double gp_btnRX_read() {
-    return 0.0;
+    return ie.btns.js2_lr;
 }
 
 GEN_TYPE_double gp_btnRY_read() {
-    return 0.0;
+    return ie.btns.js1_ud;
 }
 
 // noval

org.fortiss.af3.platform.raspberry/trunk/lib/src/PWM.c

@@ -50,7 +50,7 @@ GEN_TYPE_boolean pwm_initialized = false;
 GEN_TYPE_boolean pwm_terminated = false;
 
 void pwm_init(PWM_CHANNEL_T channel) {
-    // important, since all btns are accessing the same method
+    // important, since all pwms are accessing the same method
     if(!pwm_initialized) {
         pwm_channel_values = calloc(sizeof(GEN_TYPE_int), PWM_MAX_NO_CHANNELS);
         pwm_channel_enabled = calloc(sizeof(GEN_TYPE_boolean), PWM_MAX_NO_CHANNELS);

org.fortiss.af3.platform.raspberry/trunk/lib/src/main.c

@@ -11,6 +11,9 @@
 #include "inc/PWM.h"
 
 int main(int argc, char* argv[]) {
+    // init the system
+    initialize_system();
+
     // start a gamepad thread
     pthread_t pt_gamepad;
     pthread_create(&pt_gamepad, NULL, gp_worker, NULL);