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97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/*
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* ether.h - Ethernet device driver
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*
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* Basilisk II (C) 1997-2008 Christian Bauer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef ETHER_H
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#define ETHER_H
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struct sockaddr_in;
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extern void EtherInit(void);
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extern void EtherExit(void);
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extern int16 EtherOpen(uint32 pb, uint32 dce);
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extern int16 EtherControl(uint32 pb, uint32 dce);
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extern void EtherReadPacket(uint32 &src, uint32 &dest, uint32 &len, uint32 &remaining);
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// System specific and internal functions/data
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extern void EtherReset(void);
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extern void EtherInterrupt(void);
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extern bool ether_init(void);
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extern void ether_exit(void);
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extern void ether_reset(void);
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extern int16 ether_add_multicast(uint32 pb);
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extern int16 ether_del_multicast(uint32 pb);
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extern int16 ether_attach_ph(uint16 type, uint32 handler);
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extern int16 ether_detach_ph(uint16 type);
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extern int16 ether_write(uint32 wds);
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extern bool ether_start_udp_thread(int socket_fd);
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extern void ether_stop_udp_thread(void);
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extern void ether_udp_read(uint32 packet, int length, struct sockaddr_in *from);
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extern uint8 ether_addr[6]; // Ethernet address (set by ether_init())
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// Ethernet driver data in MacOS RAM
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enum {
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ed_DeferredTask = 0, // Deferred Task struct
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ed_Code = 20, // DT code is stored here
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ed_Result = 30, // Result for DT
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ed_DCE = 34, // DCE for DT (must come directly behind ed_Result)
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ed_RHA = 38, // Read header area
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ed_ReadPacket = 52, // ReadPacket/ReadRest routines
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SIZEOF_etherdata = 76
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};
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extern uint32 ether_data; // Mac address of driver data in MacOS RAM
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// Ethernet packet allocator (optimized for 32-bit platforms in real addressing mode)
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class EthernetPacket {
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#if SIZEOF_VOID_P == 4 && REAL_ADDRESSING
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uint8 packet[1516];
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public:
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uint32 addr(void) const { return (uint32)packet; }
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#else
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uint32 packet;
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public:
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EthernetPacket();
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~EthernetPacket();
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uint32 addr(void) const { return packet; }
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#endif
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};
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// Copy packet data from WDS to linear buffer (must hold at least 1514 bytes),
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// returns packet length
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static inline int ether_wds_to_buffer(uint32 wds, uint8 *p)
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{
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int len = 0;
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while (len < 1514) {
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int w = ReadMacInt16(wds);
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if (w == 0)
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break;
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Mac2Host_memcpy(p, ReadMacInt32(wds + 2), w);
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len += w;
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p += w;
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wds += 6;
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}
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return len;
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}
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#endif
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