core: Mouse buttons state integration #101

This allows users to use mousekey buttons with PS/2, ADB or
Serial pointing device.

converter/adb_usb/matrix.c

@@ -414,6 +414,11 @@ void adb_mouse_task(void)
 
     return;
 }
+
+uint8_t adb_mouse_buttons(void)
+{
+    return mouse_report.buttons;
+}
 #endif
 
 uint8_t matrix_scan(void)

converter/ibmpc_usb/ibmpc_usb.cpp

@@ -85,6 +85,14 @@ action_t action_for_key(uint8_t layer, keypos_t key)
     return (action_t){ .code = pgm_read_word(&actionmaps[(layer)][key.row & 0x07][key.col & 0x0F]) };
 }
 
+#ifdef IBMPC_MOUSE_ENABLE
+static uint8_t last_buttons;
+uint8_t ibmpc_mouse_buttons(void)
+{
+    return last_buttons;
+}
+#endif
+
 
 void IBMPCConverter::set_led(uint8_t usb_led)
 {
@@ -607,6 +615,7 @@ MOUSE_DONE:
                         mouse_report.v = -CHOP8(v);
                         mouse_report.h =  CHOP8(h);
                         host_mouse_send(&mouse_report);
+                        last_buttons = mouse_report.buttons;
                         xprintf("M[x:%d y:%d v:%d h:%d b:%02X]\n", mouse_report.x, mouse_report.y,
                                 mouse_report.v, mouse_report.h, mouse_report.buttons);
                         break; }

converter/ibmpc_usb/ibmpc_usb.hpp

@@ -16,6 +16,10 @@
 #define ROW(code)      ((code>>4)&0x07)
 #define COL(code)      (code&0x0F)
 
+#ifdef IBMPC_MOUSE_ENABLE
+extern "C" uint8_t ibmpc_mouse_buttons(void);
+#endif
+
 
 class IBMPCConverter {
     public: