1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * Copyright (C) 2008 by Spencer Oliver *
9 * spen@spen-soft.co.uk *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
16 * This program is distributed in the hope that it will be useful, *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
19 * GNU General Public License for more details. *
21 * You should have received a copy of the GNU General Public License *
22 * along with this program; if not, write to the *
23 * Free Software Foundation, Inc., *
24 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
25 ***************************************************************************/
30 #include <helper/log.h>
31 #include <helper/binarybuffer.h>
34 #include "target_request.h"
35 #include "target_type.h"
39 static int charmsg_mode
= 0;
41 static int target_asciimsg(struct target
*target
, uint32_t length
)
43 char *msg
= malloc(DIV_ROUND_UP(length
+ 1, 4) * 4);
44 struct debug_msg_receiver
*c
= target
->dbgmsg
;
46 target
->type
->target_request_data(target
, DIV_ROUND_UP(length
, 4), (uint8_t*)msg
);
53 command_print(c
->cmd_ctx
, "%s", msg
);
60 static int target_charmsg(struct target
*target
, uint8_t msg
)
62 LOG_USER_N("%c", msg
);
67 static int target_hexmsg(struct target
*target
, int size
, uint32_t length
)
69 uint8_t *data
= malloc(DIV_ROUND_UP(length
* size
, 4) * 4);
72 struct debug_msg_receiver
*c
= target
->dbgmsg
;
75 LOG_DEBUG("size: %i, length: %i", (int)size
, (int)length
);
77 target
->type
->target_request_data(target
, DIV_ROUND_UP(length
* size
, 4), (uint8_t*)data
);
80 for (i
= 0; i
< length
; i
++)
85 line_len
+= snprintf(line
+ line_len
, 128 - line_len
, "%8.8" PRIx32
" ", le_to_h_u32(data
+ (4*i
)));
88 line_len
+= snprintf(line
+ line_len
, 128 - line_len
, "%4.4x ", le_to_h_u16(data
+ (2*i
)));
91 line_len
+= snprintf(line
+ line_len
, 128 - line_len
, "%2.2x ", data
[i
]);
95 if ((i
%8 == 7) || (i
== length
- 1))
97 LOG_DEBUG("%s", line
);
101 command_print(c
->cmd_ctx
, "%s", line
);
114 /* handle requests from the target received by a target specific
115 * side-band channel (e.g. ARM7/9 DCC)
117 int target_request(struct target
*target
, uint32_t request
)
119 target_req_cmd_t target_req_cmd
= request
& 0xff;
122 target_charmsg(target
, target_req_cmd
);
125 switch (target_req_cmd
)
127 case TARGET_REQ_TRACEMSG
:
128 trace_point(target
, (request
& 0xffffff00) >> 8);
130 case TARGET_REQ_DEBUGMSG
:
131 if (((request
& 0xff00) >> 8) == 0)
133 target_asciimsg(target
, (request
& 0xffff0000) >> 16);
137 target_hexmsg(target
, (request
& 0xff00) >> 8, (request
& 0xffff0000) >> 16);
140 case TARGET_REQ_DEBUGCHAR
:
141 target_charmsg(target
, (request
& 0x00ff0000) >> 16);
143 /* case TARGET_REQ_SEMIHOSTING:
147 LOG_ERROR("unknown target request: %2.2x", target_req_cmd
);
154 static int add_debug_msg_receiver(struct command_context
*cmd_ctx
, struct target
*target
)
156 struct debug_msg_receiver
**p
= &target
->dbgmsg
;
159 return ERROR_INVALID_ARGUMENTS
;
161 /* see if there's already a list */
164 /* find end of linked list */
171 /* add new debug message receiver */
172 (*p
) = malloc(sizeof(struct debug_msg_receiver
));
173 (*p
)->cmd_ctx
= cmd_ctx
;
176 /* enable callback */
177 target
->dbg_msg_enabled
= 1;
182 static struct debug_msg_receiver
* find_debug_msg_receiver(struct command_context
*cmd_ctx
, struct target
*target
)
184 int do_all_targets
= 0;
185 struct debug_msg_receiver
**p
= &target
->dbgmsg
;
187 /* if no target has been specified search all of them */
190 /* if no targets haven been specified */
191 if (all_targets
== NULL
)
194 target
= all_targets
;
202 if ((*p
)->cmd_ctx
== cmd_ctx
)
209 target
= target
->next
;
210 } while (target
&& do_all_targets
);
215 int delete_debug_msg_receiver(struct command_context
*cmd_ctx
, struct target
*target
)
217 struct debug_msg_receiver
**p
;
218 struct debug_msg_receiver
*c
;
219 int do_all_targets
= 0;
221 /* if no target has been specified search all of them */
224 /* if no targets haven been specified */
225 if (all_targets
== NULL
)
228 target
= all_targets
;
238 struct debug_msg_receiver
*next
= c
->next
;
239 if (c
->cmd_ctx
== cmd_ctx
)
245 /* disable callback */
246 target
->dbg_msg_enabled
= 0;
255 target
= target
->next
;
256 } while (target
&& do_all_targets
);
261 COMMAND_HANDLER(handle_target_request_debugmsgs_command
)
263 struct target
*target
= get_current_target(CMD_CTX
);
267 /* see if reciever is already registered */
268 if (find_debug_msg_receiver(CMD_CTX
, target
) != NULL
)
273 if (!strcmp(CMD_ARGV
[0], "enable") || !strcmp(CMD_ARGV
[0], "charmsg"))
275 /* don't register if this command context is already receiving */
279 add_debug_msg_receiver(CMD_CTX
, target
);
281 charmsg_mode
= !strcmp(CMD_ARGV
[0], "charmsg");
283 else if (!strcmp(CMD_ARGV
[0], "disable"))
285 /* no need to delete a receiver if none is registered */
289 delete_debug_msg_receiver(CMD_CTX
, target
);
294 command_print(CMD_CTX
, "usage: target_request debugmsgs ['enable'|'disable'|'charmsg']");
298 command_print(CMD_CTX
, "receiving debug messages from current target %s",
299 (receiving
) ? (charmsg_mode
?"charmsg":"enabled") : "disabled");
303 static const struct command_registration target_req_exec_command_handlers
[] = {
306 .handler
= &handle_target_request_debugmsgs_command
,
307 .mode
= COMMAND_EXEC
,
308 .help
= "set reception of debug messages from target",
309 .usage
= "(enable|disable)",
311 COMMAND_REGISTRATION_DONE
313 static const struct command_registration target_req_command_handlers
[] = {
315 .name
= "target_request",
317 .help
= "target request command group",
318 .chain
= target_req_exec_command_handlers
,
320 COMMAND_REGISTRATION_DONE
323 int target_request_register_commands(struct command_context
*cmd_ctx
)
325 return register_commands(cmd_ctx
, NULL
, target_req_command_handlers
);
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