1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
24 #include "replacements.h"
27 #include "target_request.h"
28 #include "binarybuffer.h"
34 command_t *target_request_cmd = NULL;
36 int target_asciimsg(target_t *target, u32 length)
38 char *msg = malloc(CEIL(length + 1, 4) * 4);
39 debug_msg_receiver_t *c = target->dbgmsg;
41 target->type->target_request_data(target, CEIL(length, 4), (u8*)msg);
48 command_print(c->cmd_ctx, "%s", msg);
55 int target_hexmsg(target_t *target, int size, u32 length)
59 u8 *data = malloc(CEIL(length * sizeof(u8), 4) * 4);
61 target->type->target_request_data(target, CEIL(length * sizeof(u8), 4), (u8*)data);
67 u16 *data = malloc(CEIL(length * sizeof(u16), 4) * 4);
69 target->type->target_request_data(target, CEIL(length * sizeof(u16), 4), (u8*)data);
75 u32 *data = malloc(CEIL(length * sizeof(u32), 4) * 4);
77 target->type->target_request_data(target, CEIL(length * sizeof(u32), 4), (u8*)data);
83 ERROR("invalid debug message type");
89 /* handle requests from the target received by a target specific
90 * side-band channel (e.g. ARM7/9 DCC)
92 int target_request(target_t *target, u32 request)
94 target_req_cmd_t target_req_cmd = request & 0xff;
96 switch (target_req_cmd)
98 case TARGET_REQ_TRACEMSG:
99 DEBUG("tracepoint: %i", (request & 0xffffff00) >> 8);
101 case TARGET_REQ_DEBUGMSG:
102 if (((request & 0xff00) >> 8) == 0)
104 target_asciimsg(target, (request & 0xffff0000) >> 16);
108 target_hexmsg(target, (request & 0xff00) >> 8, (request & 0xffff0000) >> 16);
111 /* case TARGET_REQ_SEMIHOSTING:
115 ERROR("unknown target request: %2.2x", target_req_cmd);
122 int add_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
124 debug_msg_receiver_t **p = &target->dbgmsg;
127 return ERROR_INVALID_ARGUMENTS;
129 /* see if there's already a list */
132 /* find end of linked list */
139 /* add new debug message receiver */
140 (*p) = malloc(sizeof(debug_msg_receiver_t));
141 (*p)->cmd_ctx = cmd_ctx;
147 debug_msg_receiver_t* find_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
150 debug_msg_receiver_t **p = &target->dbgmsg;
152 /* if no target has been specified search all of them */
155 /* if no targets haven been specified */
167 if ((*p)->cmd_ctx == cmd_ctx)
174 target = target->next;
175 } while (target && all_targets);
180 int delete_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
182 debug_msg_receiver_t **p;
183 debug_msg_receiver_t *c;
186 /* if no target has been specified search all of them */
189 /* if no targets haven been specified */
201 debug_msg_receiver_t *next = c->next;
202 if (c->cmd_ctx == cmd_ctx)
213 target = target->next;
214 } while (target && all_targets);
219 int handle_target_request_debugmsgs_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
221 target_t *target = get_current_target(cmd_ctx);
225 /* see if reciever is already registered */
226 if (find_debug_msg_receiver(cmd_ctx, target) != NULL)
231 if (!strcmp(args[0], "enable"))
233 /* don't register if this command context is already receiving */
237 add_debug_msg_receiver(cmd_ctx, target);
240 else if (!strcmp(args[0], "disable"))
242 /* no need to delete a receiver if none is registered */
246 delete_debug_msg_receiver(cmd_ctx, target);
251 command_print(cmd_ctx, "usage: target_request debugmsgs ['enable'|'disable']");
255 command_print(cmd_ctx, "receiving debug messages from current target %s",
256 (receiving) ? "enabled" : "disabled");
261 int target_request_register_commands(struct command_context_s *cmd_ctx)
264 register_command(cmd_ctx, NULL, "target_request", NULL, COMMAND_ANY, "target_request commands");
266 register_command(cmd_ctx, target_request_cmd, "debugmsgs", handle_target_request_debugmsgs_command,
267 COMMAND_EXEC, "enable/disable reception of debug messgages from target");