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-rw-r--r--gdb/ser-mac.c362
1 files changed, 0 insertions, 362 deletions
diff --git a/gdb/ser-mac.c b/gdb/ser-mac.c
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--- a/gdb/ser-mac.c
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-/* Remote serial interface for local (hardwired) serial ports for Macintosh.
- Copyright 1994 Free Software Foundation, Inc.
- Contributed by Cygnus Support. Written by Stan Shebs.
-
- This file is part of GDB.
-
- 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 "defs.h"
-#include "serial.h"
-
-#include <Types.h>
-#include <Devices.h>
-/* This is the regular Mac Serial.h, but copied to a different name
- so as not to get confused with the GDB serial.h above. */
-#include "MacSerial.h"
-
-/* This is unused for now. We just return a placeholder. */
-
-struct mac_ttystate
- {
- int bogus;
- };
-
-static int mac_open PARAMS ((serial_t scb, const char *name));
-static void mac_raw PARAMS ((serial_t scb));
-static int mac_readchar PARAMS ((serial_t scb, int timeout));
-static int mac_setbaudrate PARAMS ((serial_t scb, int rate));
-static int mac_write PARAMS ((serial_t scb, const char *str, int len));
-static void mac_close PARAMS ((serial_t scb));
-static serial_ttystate mac_get_tty_state PARAMS ((serial_t scb));
-static int mac_set_tty_state PARAMS ((serial_t scb, serial_ttystate state));
-static char *aptr PARAMS ((short p));
-
-short input_refnum;
-short output_refnum;
-
-char *mac_input_buffer;
-char *mac_output_buffer;
-
-static int
-mac_open (scb, name)
- serial_t scb;
- const char *name;
-{
- OSErr err;
-
- /* Alloc buffer space first - that way any allocation failures are
- intercepted before the serial driver gets involved. */
- if (mac_input_buffer == NULL)
- mac_input_buffer = (char *) xmalloc (4096);
- /* Match on a name and open a port. */
- if (strcmp (name, "modem") == 0)
- {
- err = OpenDriver ("\p.AIn", &input_refnum);
- if (err != 0)
- {
- return (-1);
- }
- err = OpenDriver ("\p.AOut", &output_refnum);
- if (err != 0)
- {
- CloseDriver (input_refnum);
- return (-1);
- }
- }
- else if (strcmp (name, "printer") == 0)
- {
- err = OpenDriver ("\p.BIn", &input_refnum);
- if (err != 0)
- {
- return (-1);
- }
- err = OpenDriver ("\p.BOut", &output_refnum);
- if (err != 0)
- {
- CloseDriver (input_refnum);
- return (-1);
- }
- /* fake */
- scb->fd = 1;
- return 0;
- }
- else
- {
- error ("You must specify a valid serial port name; your choices are `modem' or `printer'.");
- errno = ENOENT;
- return (-1);
- }
- /* We got something open. */
- if (1 /* using custom buffer */)
- SerSetBuf (input_refnum, mac_input_buffer, 4096);
- /* Set to a GDB-preferred state. */
- SerReset (input_refnum, stop10|noParity|data8|baud9600);
- SerReset (output_refnum, stop10|noParity|data8|baud9600);
- {
- CntrlParam cb;
- struct SerShk *handshake;
-
- cb.ioCRefNum = output_refnum;
- cb.csCode = 14;
- handshake = (struct SerShk *) &cb.csParam[0];
- handshake->fXOn = 0;
- handshake->fCTS = 0;
- handshake->xOn = 0;
- handshake->xOff = 0;
- handshake->errs = 0;
- handshake->evts = 0;
- handshake->fInX = 0;
- handshake->fDTR = 0;
- err = PBControl ((ParmBlkPtr) &cb, 0);
- if (err < 0)
- return (-1);
- }
- /* fake */
- scb->fd = 1;
- return 0;
-}
-
-static int
-mac_noop (scb)
- serial_t scb;
-{
- return 0;
-}
-
-static void
-mac_raw (scb)
- serial_t scb;
-{
- /* Always effectively in raw mode. */
-}
-
-/* Read a character with user-specified timeout. TIMEOUT is number of seconds
- to wait, or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
- char if successful. Returns -2 if timeout expired, EOF if line dropped
- dead, or -3 for any other error (see errno in that case). */
-
-static int
-mac_readchar (scb, timeout)
- serial_t scb;
- int timeout;
-{
- int status, n;
- /* time_t */ unsigned long start_time, now;
- OSErr err;
- CntrlParam cb;
- IOParam pb;
-
- if (scb->bufcnt-- > 0)
- return *scb->bufp++;
-
- time (&start_time);
-
- while (1)
- {
- cb.ioCRefNum = input_refnum;
- cb.csCode = 2;
- err = PBStatus ((ParmBlkPtr) &cb, 0);
- if (err < 0)
- return SERIAL_ERROR;
- n = *((long *) &cb.csParam[0]);
- if (n > 0)
- {
- pb.ioRefNum = input_refnum;
- pb.ioBuffer = (Ptr) (scb->buf);
- pb.ioReqCount = (n > 64 ? 64 : n);
- err = PBRead ((ParmBlkPtr) &pb, 0);
- if (err < 0)
- return SERIAL_ERROR;
- scb->bufcnt = pb.ioReqCount;
- scb->bufcnt--;
- scb->bufp = scb->buf;
- return *scb->bufp++;
- }
- else if (timeout == 0)
- return SERIAL_TIMEOUT;
- else if (timeout == -1)
- ;
- else
- {
- time (&now);
- if (now > start_time + timeout)
- return SERIAL_TIMEOUT;
- }
- PROGRESS (1);
- }
-}
-
-/* mac_{get set}_tty_state() are both dummys to fill out the function
- vector. Someday, they may do something real... */
-
-static serial_ttystate
-mac_get_tty_state (scb)
- serial_t scb;
-{
- struct mac_ttystate *state;
-
- state = (struct mac_ttystate *) xmalloc (sizeof *state);
-
- return (serial_ttystate) state;
-}
-
-static int
-mac_set_tty_state (scb, ttystate)
- serial_t scb;
- serial_ttystate ttystate;
-{
- return 0;
-}
-
-static int
-mac_noflush_set_tty_state (scb, new_ttystate, old_ttystate)
- serial_t scb;
- serial_ttystate new_ttystate;
- serial_ttystate old_ttystate;
-{
- return 0;
-}
-
-static void
-mac_print_tty_state (scb, ttystate)
- serial_t scb;
- serial_ttystate ttystate;
-{
- /* Nothing to print. */
- return;
-}
-
-/* If there is a tricky formula to relate real baud rates
- to what the serial driver wants, we should use it. Until
- we get one, this table will have to do. */
-
-static struct {
- int real_rate;
- int bits;
-} mac_baud_rate_table[] = {
- { 57600, baud57600 },
- { 38400, 1 },
- { 19200, baud19200 },
- { 9600, baud9600 },
- { 7200, baud7200 },
- { 4800, baud4800 },
- { 3600, baud3600 },
- { 2400, baud2400 },
- { 1800, baud1800 },
- { 1200, baud1200 },
- { 600, baud600 },
- { 300, baud300 },
- { 0, 0 }
-};
-
-static int
-mac_set_baud_rate (scb, rate)
- serial_t scb;
- int rate;
-{
- int i, bits;
-
- for (i = 0; mac_baud_rate_table[i].real_rate != 0; ++i)
- {
- if (mac_baud_rate_table[i].real_rate == rate)
- {
- bits = mac_baud_rate_table[i].bits;
- break;
- }
- }
- SerReset (input_refnum, stop10|noParity|data8|bits);
- SerReset (output_refnum, stop10|noParity|data8|bits);
-}
-
-static int
-mac_set_stop_bits (scb, num)
- serial_t scb;
- int num;
-{
- return 0;
-}
-
-int first_mac_write = 0;
-
-static int
-mac_write (scb, str, len)
- serial_t scb;
- const char *str;
- int len;
-{
- OSErr err;
- IOParam pb;
-
- if (first_mac_write++ < 4)
- {
- sleep (1);
- }
- pb.ioRefNum = output_refnum;
- pb.ioBuffer = (Ptr) str;
- pb.ioReqCount = len;
- err = PBWrite ((ParmBlkPtr) &pb, 0);
- if (err < 0)
- {
- return 1;
- }
- return 0;
-}
-
-static void
-mac_close (serial_t scb)
-{
- if (input_refnum)
- {
- if (1 /* custom buffer */)
- SerSetBuf (input_refnum, mac_input_buffer, 0);
- CloseDriver (input_refnum);
- input_refnum = 0;
- }
- if (output_refnum)
- {
- if (0 /* custom buffer */)
- SerSetBuf (input_refnum, mac_output_buffer, 0);
- CloseDriver (output_refnum);
- output_refnum = 0;
- }
-}
-
-static struct serial_ops mac_ops =
-{
- "hardwire",
- 0,
- mac_open,
- mac_close,
- mac_readchar,
- mac_write,
- mac_noop, /* flush output */
- mac_noop, /* flush input */
- mac_noop, /* send break -- currently only for nindy */
- mac_raw,
- mac_get_tty_state,
- mac_set_tty_state,
- mac_print_tty_state,
- mac_noflush_set_tty_state,
- mac_set_baud_rate,
- mac_set_stop_bits,
- mac_noop, /* wait for output to drain */
-};
-
-void
-_initialize_ser_mac ()
-{
- serial_add_interface (&mac_ops);
-}
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