Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Remote serial interface for Macraigor Systems implementation of |
c5aa993b | 2 | On-Chip Debugging using serial target box or serial wiggler |
c906108c | 3 | |
b6ba6518 KB |
4 | Copyright 1994, 1997, 1998, 1999, 2000, 2001 |
5 | Free Software Foundation, Inc. | |
c906108c SS |
6 | |
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
c5aa993b JM |
21 | Foundation, Inc., 59 Temple Place - Suite 330, |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "serial.h" | |
26 | ||
27 | #ifdef _WIN32 | |
28 | #include <windows.h> | |
29 | #endif | |
30 | ||
c906108c SS |
31 | #ifdef _WIN32 |
32 | /* On Windows, this function pointer is initialized to a function in | |
33 | the wiggler DLL. */ | |
507f3c78 | 34 | static int (*dll_do_command) (const char *, char *); |
c906108c SS |
35 | #endif |
36 | ||
37 | static int | |
fba45db2 | 38 | ocd_open (serial_t scb, const char *name) |
c906108c SS |
39 | { |
40 | #ifdef _WIN32 | |
41 | /* Find the wiggler DLL which talks to the board. */ | |
42 | if (dll_do_command == NULL) | |
43 | { | |
44 | HINSTANCE handle; | |
45 | ||
46 | /* FIXME: Should the user be able to configure this? */ | |
47 | handle = LoadLibrary ("Wigglers.dll"); | |
48 | if (handle == NULL) | |
49 | error ("Can't load Wigglers.dll"); | |
50 | ||
b37bcaa8 | 51 | dll_do_command = ((int (*) (const char *, char *)) |
c906108c SS |
52 | GetProcAddress (handle, "do_command")); |
53 | if (dll_do_command == NULL) | |
54 | error ("Can't find do_command function in Wigglers.dll"); | |
55 | } | |
56 | #else | |
57 | /* No wiggler DLLs on Unix yet, fail. */ | |
58 | error ("Wiggler library not available for this type of host."); | |
59 | #endif /* _WIN32 */ | |
60 | return 0; | |
61 | } | |
62 | ||
63 | static int | |
fba45db2 | 64 | ocd_noop (serial_t scb) |
c906108c SS |
65 | { |
66 | return 0; | |
67 | } | |
68 | ||
69 | static void | |
fba45db2 | 70 | ocd_raw (serial_t scb) |
c906108c SS |
71 | { |
72 | /* Always in raw mode */ | |
73 | } | |
74 | ||
c906108c SS |
75 | /* We need a buffer to store responses from the Wigglers.dll */ |
76 | #define WIGGLER_BUFF_SIZE 512 | |
77 | unsigned char from_wiggler_buffer[WIGGLER_BUFF_SIZE]; | |
c5aa993b | 78 | unsigned char *wiggler_buffer_ptr; /* curr spot in buffer */ |
c906108c SS |
79 | |
80 | static int | |
fba45db2 | 81 | ocd_readchar (serial_t scb, int timeout) |
c906108c SS |
82 | { |
83 | /* Catch attempts at reading past the end of the buffer */ | |
84 | if (wiggler_buffer_ptr > | |
c5aa993b JM |
85 | (from_wiggler_buffer + (sizeof (char *) * WIGGLER_BUFF_SIZE))) |
86 | error ("ocd_readchar asked to read past the end of the buffer!"); | |
c906108c | 87 | |
c5aa993b | 88 | return (int) *wiggler_buffer_ptr++; /* return curr char and increment ptr */ |
c906108c SS |
89 | } |
90 | ||
c5aa993b JM |
91 | struct ocd_ttystate |
92 | { | |
c906108c SS |
93 | int dummy; |
94 | }; | |
95 | ||
96 | /* ocd_{get set}_tty_state() are both dummys to fill out the function | |
97 | vector. Someday, they may do something real... */ | |
98 | ||
99 | static serial_ttystate | |
fba45db2 | 100 | ocd_get_tty_state (serial_t scb) |
c906108c SS |
101 | { |
102 | struct ocd_ttystate *state; | |
103 | ||
104 | state = (struct ocd_ttystate *) xmalloc (sizeof *state); | |
105 | ||
106 | return (serial_ttystate) state; | |
107 | } | |
108 | ||
109 | static int | |
fba45db2 | 110 | ocd_set_tty_state (serial_t scb, serial_ttystate ttystate) |
c906108c SS |
111 | { |
112 | return 0; | |
113 | } | |
114 | ||
115 | static int | |
fba45db2 KB |
116 | ocd_noflush_set_tty_state (serial_t scb, serial_ttystate new_ttystate, |
117 | serial_ttystate old_ttystate) | |
c906108c SS |
118 | { |
119 | return 0; | |
120 | } | |
121 | ||
122 | static void | |
c2c6d25f JM |
123 | ocd_print_tty_state (serial_t scb, |
124 | serial_ttystate ttystate, | |
d9fcf2fb | 125 | struct ui_file *stream) |
c906108c SS |
126 | { |
127 | /* Nothing to print. */ | |
128 | return; | |
129 | } | |
130 | ||
131 | static int | |
fba45db2 | 132 | ocd_setbaudrate (serial_t scb, int rate) |
c906108c SS |
133 | { |
134 | return 0; | |
135 | } | |
136 | ||
58841d58 AC |
137 | static int |
138 | ocd_setstopbits (serial_t scb, int rate) | |
139 | { | |
140 | return 0; | |
141 | } | |
142 | ||
c906108c | 143 | static int |
fba45db2 | 144 | ocd_write (serial_t scb, const char *str, int len) |
c906108c | 145 | { |
c5aa993b | 146 | #ifdef _WIN32 |
c906108c | 147 | /* send packet to Wigglers.dll and store response so we can give it to |
c5aa993b | 148 | remote-wiggler.c when get_packet is run */ |
c906108c SS |
149 | dll_do_command (str, from_wiggler_buffer); |
150 | wiggler_buffer_ptr = from_wiggler_buffer; | |
151 | #endif | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
156 | static void | |
fba45db2 | 157 | ocd_close (serial_t scb) |
c906108c SS |
158 | { |
159 | } | |
160 | ||
161 | static struct serial_ops ocd_ops = | |
162 | { | |
163 | "ocd", | |
164 | 0, | |
165 | ocd_open, | |
166 | ocd_close, | |
167 | ocd_readchar, | |
168 | ocd_write, | |
c5aa993b JM |
169 | ocd_noop, /* flush output */ |
170 | ocd_noop, /* flush input */ | |
171 | ocd_noop, /* send break -- currently used only for nindy */ | |
c906108c SS |
172 | ocd_raw, |
173 | ocd_get_tty_state, | |
174 | ocd_set_tty_state, | |
175 | ocd_print_tty_state, | |
176 | ocd_noflush_set_tty_state, | |
177 | ocd_setbaudrate, | |
58841d58 | 178 | ocd_setstopbits, |
c5aa993b | 179 | ocd_noop, /* wait for output to drain */ |
c906108c SS |
180 | }; |
181 | ||
182 | void | |
fba45db2 | 183 | _initialize_ser_ocd_bdm (void) |
c906108c SS |
184 | { |
185 | serial_add_interface (&ocd_ops); | |
186 | } |