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- /***************************************************************************
- * Copyright (C) 2007 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * Copyright (C) 2007,2008 Øyvind Harboe *
- * oyvind.harboe@zylin.com *
- * *
- * Copyright (C) 2008 by Spencer Oliver *
- * spen@spen-soft.co.uk *
- * *
- * 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 *
- * (at your option) 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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include "replacements.h"
- #include "log.h"
- #include "target.h"
- #include "target_request.h"
- #include "binarybuffer.h"
- #include "command.h"
- #include "trace.h"
-
- #include <stdlib.h>
- #include <string.h>
-
- command_t *target_request_cmd = NULL;
-
- int target_asciimsg(target_t *target, u32 length)
- {
- char *msg = malloc(CEIL(length + 1, 4) * 4);
- debug_msg_receiver_t *c = target->dbgmsg;
-
- target->type->target_request_data(target, CEIL(length, 4), (u8*)msg);
- msg[length] = 0;
-
- LOG_DEBUG("%s", msg);
-
- while (c)
- {
- command_print(c->cmd_ctx, "%s", msg);
- c = c->next;
- }
-
- return ERROR_OK;
- }
-
- int target_charmsg(target_t *target, u8 msg)
- {
- LOG_USER_N("%c", msg);
-
- return ERROR_OK;
- }
-
- int target_hexmsg(target_t *target, int size, u32 length)
- {
- u8 *data = malloc(CEIL(length * size, 4) * 4);
- char line[128];
- int line_len;
- debug_msg_receiver_t *c = target->dbgmsg;
- int i;
-
- LOG_DEBUG("size: %i, length: %i", size, length);
-
- target->type->target_request_data(target, CEIL(length * size, 4), (u8*)data);
-
- line_len = 0;
- for (i = 0; i < length; i++)
- {
- switch (size)
- {
- case 4:
- line_len += snprintf(line + line_len, 128 - line_len, "%8.8x ", le_to_h_u32(data + (4*i)));
- break;
- case 2:
- line_len += snprintf(line + line_len, 128 - line_len, "%4.4x ", le_to_h_u16(data + (2*i)));
- break;
- case 1:
- line_len += snprintf(line + line_len, 128 - line_len, "%2.2x ", data[i]);
- break;
- }
-
- if ((i%8 == 7) || (i == length - 1))
- {
- LOG_DEBUG("%s", line);
-
- while (c)
- {
- command_print(c->cmd_ctx, "%s", line);
- c = c->next;
- }
- c = target->dbgmsg;
- line_len = 0;
- }
- }
-
- free(data);
-
- return ERROR_OK;
- }
-
- /* handle requests from the target received by a target specific
- * side-band channel (e.g. ARM7/9 DCC)
- */
- int target_request(target_t *target, u32 request)
- {
- target_req_cmd_t target_req_cmd = request & 0xff;
-
- switch (target_req_cmd)
- {
- case TARGET_REQ_TRACEMSG:
- trace_point(target, (request & 0xffffff00) >> 8);
- break;
- case TARGET_REQ_DEBUGMSG:
- if (((request & 0xff00) >> 8) == 0)
- {
- target_asciimsg(target, (request & 0xffff0000) >> 16);
- }
- else
- {
- target_hexmsg(target, (request & 0xff00) >> 8, (request & 0xffff0000) >> 16);
- }
- break;
- case TARGET_REQ_DEBUGCHAR:
- target_charmsg(target, (request & 0x00ff0000) >> 16);
- break;
- /* case TARGET_REQ_SEMIHOSTING:
- * break;
- */
- default:
- LOG_ERROR("unknown target request: %2.2x", target_req_cmd);
- break;
- }
-
- return ERROR_OK;
- }
-
- int add_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
- {
- debug_msg_receiver_t **p = &target->dbgmsg;
-
- if (target == NULL)
- return ERROR_INVALID_ARGUMENTS;
-
- /* see if there's already a list */
- if (*p)
- {
- /* find end of linked list */
- p = &target->dbgmsg;
- while ((*p)->next)
- p = &((*p)->next);
- p = &((*p)->next);
- }
-
- /* add new debug message receiver */
- (*p) = malloc(sizeof(debug_msg_receiver_t));
- (*p)->cmd_ctx = cmd_ctx;
- (*p)->next = NULL;
-
- /* enable callback */
- target->dbg_msg_enabled = 1;
-
- return ERROR_OK;
- }
-
- debug_msg_receiver_t* find_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
- {
- int do_all_targets = 0;
- debug_msg_receiver_t **p = &target->dbgmsg;
-
- /* if no target has been specified search all of them */
- if (target == NULL)
- {
- /* if no targets haven been specified */
- if (all_targets == NULL)
- return NULL;
-
- target = all_targets;
- do_all_targets = 1;
- }
-
- do
- {
- while (*p)
- {
- if ((*p)->cmd_ctx == cmd_ctx)
- {
- return *p;
- }
- p = &((*p)->next);
- }
-
- target = target->next;
- } while (target && do_all_targets);
-
- return NULL;
- }
-
- int delete_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
- {
- debug_msg_receiver_t **p;
- debug_msg_receiver_t *c;
- int do_all_targets = 0;
-
- /* if no target has been specified search all of them */
- if (target == NULL)
- {
- /* if no targets haven been specified */
- if (all_targets == NULL)
- return ERROR_OK;
-
- target = all_targets;
- do_all_targets = 1;
- }
-
- do
- {
- p = &target->dbgmsg;
- c = *p;
- while (c)
- {
- debug_msg_receiver_t *next = c->next;
- if (c->cmd_ctx == cmd_ctx)
- {
- *p = next;
- free(c);
- if (*p == NULL)
- {
- /* disable callback */
- target->dbg_msg_enabled = 0;
- }
- return ERROR_OK;
- }
- else
- p = &(c->next);
- c = next;
- }
-
- target = target->next;
- } while (target && do_all_targets);
-
- return ERROR_OK;
- }
-
- int handle_target_request_debugmsgs_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
- {
- target_t *target = get_current_target(cmd_ctx);
-
- int receiving = 0;
-
- /* see if reciever is already registered */
- if (find_debug_msg_receiver(cmd_ctx, target) != NULL)
- receiving = 1;
-
- if (argc > 0)
- {
- if (!strcmp(args[0], "enable"))
- {
- /* don't register if this command context is already receiving */
- if (!receiving)
- {
- receiving = 1;
- add_debug_msg_receiver(cmd_ctx, target);
- }
- }
- else if (!strcmp(args[0], "disable"))
- {
- /* no need to delete a receiver if none is registered */
- if (receiving)
- {
- receiving = 0;
- delete_debug_msg_receiver(cmd_ctx, target);
- }
- }
- else
- {
- command_print(cmd_ctx, "usage: target_request debugmsgs ['enable'|'disable']");
- }
- }
-
- command_print(cmd_ctx, "receiving debug messages from current target %s",
- (receiving) ? "enabled" : "disabled");
-
- return ERROR_OK;
- }
-
- int target_request_register_commands(struct command_context_s *cmd_ctx)
- {
- target_request_cmd =
- register_command(cmd_ctx, NULL, "target_request", NULL, COMMAND_ANY, "target_request commands");
-
- register_command(cmd_ctx, target_request_cmd, "debugmsgs", handle_target_request_debugmsgs_command,
- COMMAND_EXEC, "enable/disable reception of debug messages from target");
-
- return ERROR_OK;
- }
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