Commit | Line | Data |
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c906108c | 1 | /* Remote serial interface for Macraigor Systems implementation of |
c5aa993b | 2 | On-Chip Debugging using serial target box or serial wiggler |
c906108c | 3 | |
d9fcf2fb | 4 | Copyright 1994, 1997, 1999, 2000 Free Software Foundation, Inc. |
c906108c SS |
5 | |
6 | This file is part of GDB. | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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 | |
c5aa993b JM |
20 | Foundation, Inc., 59 Temple Place - Suite 330, |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include "serial.h" | |
25 | ||
26 | #ifdef _WIN32 | |
27 | #include <windows.h> | |
28 | #endif | |
29 | ||
c906108c SS |
30 | #ifdef _WIN32 |
31 | /* On Windows, this function pointer is initialized to a function in | |
32 | the wiggler DLL. */ | |
507f3c78 | 33 | static int (*dll_do_command) (const char *, char *); |
c906108c SS |
34 | #endif |
35 | ||
36 | static int | |
fba45db2 | 37 | ocd_open (serial_t scb, const char *name) |
c906108c SS |
38 | { |
39 | #ifdef _WIN32 | |
40 | /* Find the wiggler DLL which talks to the board. */ | |
41 | if (dll_do_command == NULL) | |
42 | { | |
43 | HINSTANCE handle; | |
44 | ||
45 | /* FIXME: Should the user be able to configure this? */ | |
46 | handle = LoadLibrary ("Wigglers.dll"); | |
47 | if (handle == NULL) | |
48 | error ("Can't load Wigglers.dll"); | |
49 | ||
b37bcaa8 | 50 | dll_do_command = ((int (*) (const char *, char *)) |
c906108c SS |
51 | GetProcAddress (handle, "do_command")); |
52 | if (dll_do_command == NULL) | |
53 | error ("Can't find do_command function in Wigglers.dll"); | |
54 | } | |
55 | #else | |
56 | /* No wiggler DLLs on Unix yet, fail. */ | |
57 | error ("Wiggler library not available for this type of host."); | |
58 | #endif /* _WIN32 */ | |
59 | return 0; | |
60 | } | |
61 | ||
62 | static int | |
fba45db2 | 63 | ocd_noop (serial_t scb) |
c906108c SS |
64 | { |
65 | return 0; | |
66 | } | |
67 | ||
68 | static void | |
fba45db2 | 69 | ocd_raw (serial_t scb) |
c906108c SS |
70 | { |
71 | /* Always in raw mode */ | |
72 | } | |
73 | ||
c906108c SS |
74 | /* We need a buffer to store responses from the Wigglers.dll */ |
75 | #define WIGGLER_BUFF_SIZE 512 | |
76 | unsigned char from_wiggler_buffer[WIGGLER_BUFF_SIZE]; | |
c5aa993b | 77 | unsigned char *wiggler_buffer_ptr; /* curr spot in buffer */ |
c906108c SS |
78 | |
79 | static int | |
fba45db2 | 80 | ocd_readchar (serial_t scb, int timeout) |
c906108c SS |
81 | { |
82 | /* Catch attempts at reading past the end of the buffer */ | |
83 | if (wiggler_buffer_ptr > | |
c5aa993b JM |
84 | (from_wiggler_buffer + (sizeof (char *) * WIGGLER_BUFF_SIZE))) |
85 | error ("ocd_readchar asked to read past the end of the buffer!"); | |
c906108c | 86 | |
c5aa993b | 87 | return (int) *wiggler_buffer_ptr++; /* return curr char and increment ptr */ |
c906108c SS |
88 | } |
89 | ||
c5aa993b JM |
90 | struct ocd_ttystate |
91 | { | |
c906108c SS |
92 | int dummy; |
93 | }; | |
94 | ||
95 | /* ocd_{get set}_tty_state() are both dummys to fill out the function | |
96 | vector. Someday, they may do something real... */ | |
97 | ||
98 | static serial_ttystate | |
fba45db2 | 99 | ocd_get_tty_state (serial_t scb) |
c906108c SS |
100 | { |
101 | struct ocd_ttystate *state; | |
102 | ||
103 | state = (struct ocd_ttystate *) xmalloc (sizeof *state); | |
104 | ||
105 | return (serial_ttystate) state; | |
106 | } | |
107 | ||
108 | static int | |
fba45db2 | 109 | ocd_set_tty_state (serial_t scb, serial_ttystate ttystate) |
c906108c SS |
110 | { |
111 | return 0; | |
112 | } | |
113 | ||
114 | static int | |
fba45db2 KB |
115 | ocd_noflush_set_tty_state (serial_t scb, serial_ttystate new_ttystate, |
116 | serial_ttystate old_ttystate) | |
c906108c SS |
117 | { |
118 | return 0; | |
119 | } | |
120 | ||
121 | static void | |
c2c6d25f JM |
122 | ocd_print_tty_state (serial_t scb, |
123 | serial_ttystate ttystate, | |
d9fcf2fb | 124 | struct ui_file *stream) |
c906108c SS |
125 | { |
126 | /* Nothing to print. */ | |
127 | return; | |
128 | } | |
129 | ||
130 | static int | |
fba45db2 | 131 | ocd_setbaudrate (serial_t scb, int rate) |
c906108c SS |
132 | { |
133 | return 0; | |
134 | } | |
135 | ||
136 | static int | |
fba45db2 | 137 | ocd_write (serial_t scb, const char *str, int len) |
c906108c | 138 | { |
c5aa993b | 139 | #ifdef _WIN32 |
c906108c | 140 | /* send packet to Wigglers.dll and store response so we can give it to |
c5aa993b | 141 | remote-wiggler.c when get_packet is run */ |
c906108c SS |
142 | dll_do_command (str, from_wiggler_buffer); |
143 | wiggler_buffer_ptr = from_wiggler_buffer; | |
144 | #endif | |
145 | ||
146 | return 0; | |
147 | } | |
148 | ||
149 | static void | |
fba45db2 | 150 | ocd_close (serial_t scb) |
c906108c SS |
151 | { |
152 | } | |
153 | ||
154 | static struct serial_ops ocd_ops = | |
155 | { | |
156 | "ocd", | |
157 | 0, | |
158 | ocd_open, | |
159 | ocd_close, | |
160 | ocd_readchar, | |
161 | ocd_write, | |
c5aa993b JM |
162 | ocd_noop, /* flush output */ |
163 | ocd_noop, /* flush input */ | |
164 | ocd_noop, /* send break -- currently used only for nindy */ | |
c906108c SS |
165 | ocd_raw, |
166 | ocd_get_tty_state, | |
167 | ocd_set_tty_state, | |
168 | ocd_print_tty_state, | |
169 | ocd_noflush_set_tty_state, | |
170 | ocd_setbaudrate, | |
c5aa993b | 171 | ocd_noop, /* wait for output to drain */ |
c906108c SS |
172 | }; |
173 | ||
174 | void | |
fba45db2 | 175 | _initialize_ser_ocd_bdm (void) |
c906108c SS |
176 | { |
177 | serial_add_interface (&ocd_ops); | |
178 | } |