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root/cebix/BasiliskII/src/include/ether.h
Revision: 1.10
Committed: 2008-01-01T09:40:35Z (16 years, 10 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
CVS Tags: HEAD
Changes since 1.9: +1 -1 lines
Log Message:
Happy New Year!

File Contents

# Content
1 /*
2 * ether.h - Ethernet device driver
3 *
4 * Basilisk II (C) 1997-2008 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
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #ifndef ETHER_H
22 #define ETHER_H
23
24 struct sockaddr_in;
25
26 extern void EtherInit(void);
27 extern void EtherExit(void);
28
29 extern int16 EtherOpen(uint32 pb, uint32 dce);
30 extern int16 EtherControl(uint32 pb, uint32 dce);
31 extern void EtherReadPacket(uint32 &src, uint32 &dest, uint32 &len, uint32 &remaining);
32
33 // System specific and internal functions/data
34 extern void EtherReset(void);
35 extern void EtherInterrupt(void);
36
37 extern bool ether_init(void);
38 extern void ether_exit(void);
39 extern void ether_reset(void);
40 extern int16 ether_add_multicast(uint32 pb);
41 extern int16 ether_del_multicast(uint32 pb);
42 extern int16 ether_attach_ph(uint16 type, uint32 handler);
43 extern int16 ether_detach_ph(uint16 type);
44 extern int16 ether_write(uint32 wds);
45 extern bool ether_start_udp_thread(int socket_fd);
46 extern void ether_stop_udp_thread(void);
47 extern void ether_udp_read(uint32 packet, int length, struct sockaddr_in *from);
48
49 extern uint8 ether_addr[6]; // Ethernet address (set by ether_init())
50
51 // Ethernet driver data in MacOS RAM
52 enum {
53 ed_DeferredTask = 0, // Deferred Task struct
54 ed_Code = 20, // DT code is stored here
55 ed_Result = 30, // Result for DT
56 ed_DCE = 34, // DCE for DT (must come directly behind ed_Result)
57 ed_RHA = 38, // Read header area
58 ed_ReadPacket = 52, // ReadPacket/ReadRest routines
59 SIZEOF_etherdata = 76
60 };
61
62 extern uint32 ether_data; // Mac address of driver data in MacOS RAM
63
64 // Ethernet packet allocator (optimized for 32-bit platforms in real addressing mode)
65 class EthernetPacket {
66 #if SIZEOF_VOID_P == 4 && REAL_ADDRESSING
67 uint8 packet[1516];
68 public:
69 uint32 addr(void) const { return (uint32)packet; }
70 #else
71 uint32 packet;
72 public:
73 EthernetPacket();
74 ~EthernetPacket();
75 uint32 addr(void) const { return packet; }
76 #endif
77 };
78
79 // Copy packet data from WDS to linear buffer (must hold at least 1514 bytes),
80 // returns packet length
81 static inline int ether_wds_to_buffer(uint32 wds, uint8 *p)
82 {
83 int len = 0;
84 while (len < 1514) {
85 int w = ReadMacInt16(wds);
86 if (w == 0)
87 break;
88 Mac2Host_memcpy(p, ReadMacInt32(wds + 2), w);
89 len += w;
90 p += w;
91 wds += 6;
92 }
93 return len;
94 }
95
96 #endif