1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* Copyright (C) 2008 Stefan Hajnoczi <stefanha@gmail.com>.
*
* 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <ipxe/serial.h>
#include <ipxe/gdbstub.h>
#include <ipxe/gdbserial.h>
struct gdb_transport serial_gdb_transport __gdb_transport;
static struct serial_config port;
static size_t gdbserial_recv ( char *buf, size_t len ) {
assert ( len > 0 );
buf [ 0 ] = serial_getc_( &port );
return 1;
}
static void gdbserial_send ( const char *buf, size_t len ) {
while ( len-- > 0 ) {
serial_putc_ ( &port, *buf++ );
}
}
static int gdbserial_init ( int argc, char **argv ) {
port = default_serial;
switch ( argc ) {
case 1:
if (!strcmp("COM1", argv[0])) port.console = COM1;
else if (!strcmp("COM2", argv[0])) port.console = COM2;
else if (!strcmp("COM3", argv[0])) port.console = COM3;
else if (!strcmp("COM4", argv[0])) port.console = COM4;
else {
printf("%s is not a serial port. Use COM1, COM2, COM3, or COM4\n", argv[0]);
return 1;
}
port.preserve = 0; /* TODO: this should be configurable. */
serial_init_(&port);
case 0:
break;
default:
printf("Usage: gdbstub serial [port]\n");
return 1;
}
return 0;
}
struct gdb_transport serial_gdb_transport __gdb_transport = {
.name = "serial",
.init = gdbserial_init,
.recv = gdbserial_recv,
.send = gdbserial_send,
};
struct gdb_transport *gdbserial_configure ( void ) {
return &serial_gdb_transport;
}
|
