gsplus/.svn/pristine/1b/1bed4af4a26a47ab778f7b856c289fba2fc4d9b5.svn-base
2015-11-05 14:23:46 -06:00

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/*
GSport - an Apple //gs Emulator
Copyright (C) 2010 by GSport contributors
Based on the KEGS emulator written by and Copyright (C) 2003 Kent Dickey
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <ctype.h>
#ifdef _WIN32
# include <winsock2.h>
#else
# include <sys/socket.h>
# include <netinet/in.h>
# include <netdb.h>
#endif
#if defined(HPUX) || defined(__linux__) || defined(SOLARIS) || defined(MAC) || defined(__MACH__) || defined(_WIN32)
# define SCC_SOCKETS
#endif
/* my scc port 0 == channel A, port 1 = channel B */
// LLAP may have packets up to 603 bytes, and the buffers must be large enough to contain a single packet.
#define SCC_INBUF_SIZE 1024 /* must be a power of 2 */
#define SCC_OUTBUF_SIZE 1024 /* must be a power of 2 */
#define SCC_MODEM_MAX_CMD_STR 128
#ifndef SOCKET
# define SOCKET word32 /* for non-windows */
#endif
STRUCT(Scc) {
int port;
int state /* 0 == disconnected, 1 == real serial port, 2 == socket, 3 == LocalTalk */;
int accfd;
SOCKET sockfd;
int socket_state;
int rdwrfd;
void *host_handle;
void *host_handle2;
int host_aux1;
int read_called_this_vbl;
int write_called_this_vbl;
int mode;
int reg_ptr;
int reg[16];
int rx_queue_depth;
byte rx_queue[4];
unsigned int lad;
int in_rdptr;
int in_wrptr;
byte in_buf[SCC_INBUF_SIZE];
int out_rdptr;
int out_wrptr;
byte out_buf[SCC_OUTBUF_SIZE];
int br_is_zero;
int tx_buf_empty;
int wantint_rx;
int wantint_tx;
int wantint_zerocnt;
int did_int_rx_first;
int dcd;
int sdlc_eof;
int eom;
double br_dcycs;
double tx_dcycs;
double rx_dcycs;
int br_event_pending;
int rx_event_pending;
int tx_event_pending;
byte irq_pending;
int char_size;
int baud_rate;
double out_char_dcycs;
int socket_num_rings;
int socket_last_ring_dcycs;
word32 modem_mode;
int modem_dial_or_acc_mode;
int modem_plus_mode;
int modem_s0_val;
int telnet_mode;
int telnet_iac;
word32 telnet_local_mode[2];
word32 telnet_remote_mode[2];
word32 telnet_reqwill_mode[2];
word32 telnet_reqdo_mode[2];
int modem_cmd_len;
byte modem_cmd_str[SCC_MODEM_MAX_CMD_STR + 5];
};
#define SCCMODEM_NOECHO 0x0001
#define SCCMODEM_NOVERBOSE 0x0002