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root/cebix/BasiliskII/src/dummy/ether_dummy.cpp

Comparing BasiliskII/src/dummy/ether_dummy.cpp (file contents):
Revision 1.1 by cebix, 1999-10-03T14:16:26Z vs.
Revision 1.6 by cebix, 2001-07-15T02:26:20Z

#	Line 1 | Line 1
1		/*
2		*  ether_dummy.cpp - Ethernet device driver, dummy implementation
3		*
4	<	*  Basilisk II (C) 1997-1999 Christian Bauer
4	>	*  Basilisk II (C) 1997-2001 Christian Bauer
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 19 | Line 19
19		*/
20
21		#include "sysdeps.h"
22	+
23	+	#if SUPPORTS_UDP_TUNNEL
24	+	#include <netinet/in.h>
25	+	#include <sys/socket.h>
26	+	#endif
27	+
28		#include "cpu_emulation.h"
29		#include "main.h"
30		#include "macos_util.h"
#	Line 33 | Line 39
39		#define MONITOR 0
40
41
42	+	// Global variables
43	+	#if SUPPORTS_UDP_TUNNEL
44	+	static int fd = -1;                                             // UDP tunnel socket fd
45	+	static bool udp_tunnel_active = false;
46	+	#endif
47	+
48	+
49		/*
50		*  Initialization
51		*/
52
53	<	void EtherInit(void)
53	>	bool ether_init(void)
54		{
55	+	return true;
56		}
57
58
#	Line 46 | Line 60 | void EtherInit(void)
60		*  Deinitialization
61		*/
62
63	<	void EtherExit(void)
63	>	void ether_exit(void)
64		{
65		}
66
#	Line 55 | Line 69 | void EtherExit(void)
69		*  Reset
70		*/
71
72	<	void EtherReset(void)
72	>	void ether_reset(void)
73		{
74		}
75
#	Line 114 | Line 128 | int16 ether_write(uint32 wds)
128
129
130		/*
131	+	*  Start UDP packet reception thread
132	+	*/
133	+
134	+	bool ether_start_udp_thread(int socket_fd)
135	+	{
136	+	#if SUPPORTS_UDP_TUNNEL
137	+	fd = socket_fd;
138	+	udp_tunnel_active = true;
139	+	return true;
140	+	#else
141	+	return false;
142	+	#endif
143	+	}
144	+
145	+
146	+	/*
147	+	*  Stop UDP packet reception thread
148	+	*/
149	+
150	+	void ether_stop_udp_thread(void)
151	+	{
152	+	#if SUPPORTS_UDP_TUNNEL
153	+	udp_tunnel_active = false;
154	+	#endif
155	+	}
156	+
157	+
158	+	/*
159		*  Ethernet interrupt - activate deferred tasks to call IODone or protocol handlers
160		*/
161
162		void EtherInterrupt(void)
163		{
164	+	#if SUPPORTS_UDP_TUNNEL
165	+	if (udp_tunnel_active) {
166	+	uint8 packet[1514];
167	+	ssize_t length;
168	+
169	+	// Read packets from socket and hand to ether_udp_read() for processing
170	+	while (true) {
171	+	struct sockaddr_in from;
172	+	socklen_t from_len = sizeof(from);
173	+	length = recvfrom(fd, packet, 1514, 0, (struct sockaddr *)&from, &from_len);
174	+	if (length < 14)
175	+	break;
176	+	ether_udp_read(packet, length, &from);
177	+	}
178	+	}
179	+	#endif
180		}

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