1 /* Remote serial interface for Macraigor Systems implementation of
2 On-Chip Debugging using serial target box or serial wiggler
4 Copyright 1994, 1997 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
29 static int ser_ocd_open PARAMS ((serial_t scb, const char *name));
30 static void ser_ocd_raw PARAMS ((serial_t scb));
31 static int ser_ocd_readchar PARAMS ((serial_t scb, int timeout));
32 static int ser_ocd_setbaudrate PARAMS ((serial_t scb, int rate));
33 static int ser_ocd_write PARAMS ((serial_t scb, const char *str, int len));
34 static void ser_ocd_close PARAMS ((serial_t scb));
35 static serial_ttystate ser_ocd_get_tty_state PARAMS ((serial_t scb));
36 static int ser_ocd_set_tty_state PARAMS ((serial_t scb, serial_ttystate state));
39 /* On Windows, this function pointer is initialized to a function in
41 static int (*dll_do_command) PARAMS ((const char *, char *));
50 /* Find the wiggler DLL which talks to the board. */
51 if (dll_do_command == NULL)
55 /* FIXME: Should the user be able to configure this? */
56 handle = LoadLibrary ("Wigglers.dll");
58 error ("Can't load Wigglers.dll");
60 dll_do_command = ((int (*) PARAMS ((const char *, char *)))
61 GetProcAddress (handle, "do_command"));
62 if (dll_do_command == NULL)
63 error ("Can't find do_command function in Wigglers.dll");
81 /* Always in raw mode */
84 /* We need a buffer to store responses from the Wigglers.dll */
85 #define WIGGLER_BUFF_SIZE 512
86 unsigned char from_wiggler_buffer[WIGGLER_BUFF_SIZE];
87 unsigned char * wiggler_buffer_ptr; /* curr spot in buffer */
95 ocd_readchar (scb, timeout)
99 return (int) *wiggler_buffer_ptr++; /* return curr char and increment ptr */
102 struct ocd_ttystate {
106 /* ocd_{get set}_tty_state() are both dummys to fill out the function
107 vector. Someday, they may do something real... */
109 static serial_ttystate
110 ocd_get_tty_state (scb)
113 struct ocd_ttystate *state;
115 state = (struct ocd_ttystate *) xmalloc (sizeof *state);
117 return (serial_ttystate) state;
121 ocd_set_tty_state (scb, ttystate)
123 serial_ttystate ttystate;
129 ocd_noflush_set_tty_state (scb, new_ttystate, old_ttystate)
131 serial_ttystate new_ttystate;
132 serial_ttystate old_ttystate;
138 ocd_print_tty_state (scb, ttystate)
140 serial_ttystate ttystate;
142 /* Nothing to print. */
147 ocd_setbaudrate (scb, rate)
155 ocd_write (scb, str, len)
163 /* send packet to Wigglers.dll and store response so we can give it to
164 remote-wiggler.c when get_packet is run */
165 dll_do_command (str, from_wiggler_buffer);
166 wiggler_buffer_ptr = from_wiggler_buffer;
178 static struct serial_ops ocd_ops =
186 ocd_noop, /* flush output */
187 ocd_noop, /* flush input */
188 ocd_noop, /* send break -- currently used only for nindy */
193 ocd_noflush_set_tty_state,
198 _initialize_ser_ocd_bdm ()
200 serial_add_interface (&ocd_ops);