Add PLIP network device

src/include/86box/lpt.h

@@ -1,3 +1,6 @@
+#ifndef EMU_LPT_H
+# define EMU_LPT_H
+
 typedef struct
 {
     const char *name;
@@ -58,3 +61,5 @@ extern const lpt_device_t lpt_dac_device;
 extern const lpt_device_t lpt_dac_stereo_device;
 
 extern const lpt_device_t dss_device;
+
+#endif /*EMU_LPT_H*/

src/include/86box/net_plip.h

@@ -0,0 +1,24 @@
+/*
+ * 86Box	A hypervisor and IBM PC system emulator that specializes in
+ *		running old operating systems and software designed for IBM
+ *		PC systems and compatibles from 1981 through fairly recent
+ *		system designs based on the PCI bus.
+ *
+ *		This file is part of the 86Box distribution.
+ *
+ *		Definitions for the PLIP parallel port network device.
+ *
+ *
+ *
+ * Author:	RichardG, <richardg867@gmail.com>
+ *		Copyright 2020 RichardG.
+ */
+#ifndef NET_PLIP_H
+# define NET_PLIP_H
+# include <86box/device.h>
+# include <86box/lpt.h>
+
+extern const lpt_device_t lpt_plip_device;
+extern const device_t plip_device;
+
+#endif	/*NET_PLIP_H*/

src/include/86box/network.h

@@ -101,6 +101,7 @@ extern "C" {
 /* Global variables. */
 extern int	nic_do_log;				/* config */
 extern int      network_ndev;
+extern int	network_rx_pause;
 extern netdev_t network_devs[32];