Add lcd/print.c for easier lcd output

firmware/basic/menu.c

@@ -4,6 +4,7 @@
 
 #include "lcd/fonts.h"
 #include "lcd/render.h"
+#include "lcd/print.h"
 
 /**************************************************************************/
 
@@ -72,9 +73,9 @@ void handleMenu(const struct MENU *the_menu) {
                     the_menu->entries[menuselection]->callback();
                 break;
             case BTN_ENTER:
-                lcdFill(0);
-                DoString(0,0,"Called....");
-                lcdDisplay(0);
+                lcdClear();
+                lcdPrintln("Called...");
+                lcdRefresh();
                 if (the_menu->entries[menuselection]->callback!=NULL)
                     the_menu->entries[menuselection]->callback();
                 lcdDisplay(0);

firmware/lcd/Makefile

@@ -8,6 +8,7 @@ OBJS += display.o
 OBJS += render.o
 OBJS += decoder.o
 OBJS += backlight.o
+OBJS += print.o
 
 FONTS = $(basename $(wildcard fonts/*.c))
 

firmware/lcd/display.c

@@ -12,7 +12,8 @@
 
 uint8_t lcdBuffer[RESX*RESY_B];
 int lcd_layout = 0;
-uint32_t intstatus;
+uint32_t intstatus; // Caches USB interrupt state
+                    // (need to disable MSC while displaying)
 
 #define TYPE_CMD    0
 #define TYPE_DATA   1

firmware/lcd/print.c

@@ -0,0 +1,36 @@
+#include <display.h>
+#include <render.h>
+#include <fonts.h>
+
+int x=0;
+int y=0;
+
+void lcdPrint(const char *string){
+  x=DoString(x,y,string);
+};
+
+void lcdNl(void){
+  x=0;y+=font->u8Height;
+};
+
+void lcdPrintln(const char *string){
+  lcdPrint(string);
+  lcdNl();
+};
+  
+void lcdPrintInt(const int num){
+  x=DoInt(x,y,num);
+};
+
+void lcdPrintIntHex(const int num){
+  x=DoIntX(x,y,num);
+};
+
+void lcdClear(){
+  x=0;y=0;
+  lcdFill(0);
+};
+
+void lcdRefresh(){
+    lcdDisplay(0);
+};

firmware/lcd/print.h

@@ -0,0 +1,7 @@
+void lcdPrint(const char *string);
+void lcdNl(void);
+void lcdPrintln(const char *string);
+void lcdPrintInt(const int num);
+void lcdPrintIntHex(const int num);
+void lcdClear();
+void lcdRefresh();