Add rn42_lined(): connection status(GPIO2)

keyboard/hhkb_rn42/rn42/rn42.c

@@ -86,6 +86,11 @@ void rn42_cts_lo(void)
     PORTD &= ~(1<<5);
 }
 
+bool rn42_linked(void)
+{
+    return PINF&(1<<6);
+}
+
 
 static uint8_t keyboard_leds(void) { return 0; }
 

keyboard/hhkb_rn42/rn42/rn42.h

@@ -14,5 +14,6 @@ void rn42_disconnect(void);
 bool rn42_rts(void);
 void rn42_cts_hi(void);
 void rn42_cts_lo(void);
+bool rn42_linked(void);
 
 #endif

keyboard/hhkb_rn42/rn42/rn42_task.c

@@ -162,8 +162,10 @@ bool command_extra(uint8_t code)
             xprintf("protocol: %s\n", (host_get_driver() == &rn42_driver) ? "RN-42" : "LUFA");
             xprintf("force_usb: %X\n", force_usb);
             xprintf("rn42_autoconnecting(): %X\n", rn42_autoconnecting());
+            xprintf("rn42_linked(): %X\n", rn42_linked());
             xprintf("rn42_rts(): %X\n", rn42_rts());
             xprintf("config_mode: %X\n", config_mode);
+            xprintf("VBUS: %X\n", USBSTA&(1<<VBUS));
             return true;
         case KC_B:
             // battery monitor