+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2007 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * 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 <helper/log.h>
+#include <helper/binarybuffer.h>
+
+#include "target.h"
#include "target_request.h"
-#include "binarybuffer.h"
+#include "target_type.h"
#include "trace.h"
-#include "log.h"
+static bool got_message;
+
+bool target_got_message(void)
+{
+ bool t = got_message;
+ got_message = false;
+ return t;
+}
-static command_t *target_request_cmd = NULL;
-static int charmsg_mode = 0;
+static int charmsg_mode;
-static int target_asciimsg(target_t *target, u32 length)
+static int target_asciimsg(struct target *target, uint32_t 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);
+ char *msg = malloc(DIV_ROUND_UP(length + 1, 4) * 4);
+ struct debug_msg_receiver *c = target->dbgmsg;
+
+ target->type->target_request_data(target, DIV_ROUND_UP(length, 4), (uint8_t *)msg);
msg[length] = 0;
-
+
LOG_DEBUG("%s", msg);
-
- while (c)
- {
- command_print(c->cmd_ctx, "%s", msg);
+
+ while (c) {
+ command_output_text(c->cmd_ctx, msg);
c = c->next;
}
-
+
return ERROR_OK;
}
-static int target_charmsg(target_t *target, u8 msg)
+static int target_charmsg(struct target *target, uint8_t msg)
{
LOG_USER_N("%c", msg);
-
+
return ERROR_OK;
}
-static int target_hexmsg(target_t *target, int size, u32 length)
+static int target_hexmsg(struct target *target, int size, uint32_t length)
{
- u8 *data = malloc(CEIL(length * size, 4) * 4);
+ uint8_t *data = malloc(DIV_ROUND_UP(length * size, 4) * 4);
char line[128];
int line_len;
- debug_msg_receiver_t *c = target->dbgmsg;
- u32 i;
-
- LOG_DEBUG("size: %i, length: %i", size, length);
+ struct debug_msg_receiver *c = target->dbgmsg;
+ uint32_t i;
+
+ LOG_DEBUG("size: %i, length: %i", (int)size, (int)length);
- target->type->target_request_data(target, CEIL(length * size, 4), (u8*)data);
+ target->type->target_request_data(target, DIV_ROUND_UP(length * size, 4), (uint8_t *)data);
line_len = 0;
- for (i = 0; i < length; i++)
- {
- switch (size)
- {
+ 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)));
+ line_len += snprintf(line + line_len, 128 - line_len, "%8.8" PRIx32 " ", 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)));
line_len += snprintf(line + line_len, 128 - line_len, "%2.2x ", data[i]);
break;
}
-
- if ((i%8 == 7) || (i == length - 1))
- {
+
+ if ((i%8 == 7) || (i == length - 1)) {
LOG_DEBUG("%s", line);
-
- while (c)
- {
- command_print(c->cmd_ctx, "%s", line);
+
+ while (c) {
+ command_output_text(c->cmd_ctx, 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)
+int target_request(struct target *target, uint32_t request)
{
target_req_cmd_t target_req_cmd = request & 0xff;
- if ( charmsg_mode ) {
- target_charmsg(target, target_req_cmd );
+ assert(target->type->target_request_data);
+
+ /* Record that we got a target message for back-off algorithm */
+ got_message = true;
+
+ if (charmsg_mode) {
+ target_charmsg(target, target_req_cmd);
return ERROR_OK;
}
- switch (target_req_cmd)
- {
+
+ 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);
/* case TARGET_REQ_SEMIHOSTING:
* break;
*/
- default:
- LOG_ERROR("unknown target request: %2.2x", target_req_cmd);
- break;
+ default:
+ LOG_ERROR("unknown target request: %2.2x", target_req_cmd);
+ break;
}
-
+
return ERROR_OK;
}
-static int add_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
+static int add_debug_msg_receiver(struct command_context *cmd_ctx, struct target *target)
{
- debug_msg_receiver_t **p = &target->dbgmsg;
-
- if (target == NULL)
- return ERROR_INVALID_ARGUMENTS;
+ struct debug_msg_receiver **p = &target->dbgmsg;
+
+ if (!target)
+ return ERROR_COMMAND_SYNTAX_ERROR;
/* see if there's already a list */
- if (*p)
- {
+ 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) = malloc(sizeof(struct debug_msg_receiver));
(*p)->cmd_ctx = cmd_ctx;
(*p)->next = NULL;
-
+
/* enable callback */
target->dbg_msg_enabled = 1;
-
+
return ERROR_OK;
}
-static debug_msg_receiver_t* find_debug_msg_receiver(struct command_context_s *cmd_ctx, target_t *target)
+static struct debug_msg_receiver *find_debug_msg_receiver(struct command_context *cmd_ctx,
+ struct target *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 (!target) {
/* if no targets haven been specified */
- if (all_targets == NULL)
+ if (!all_targets)
return NULL;
target = all_targets;
do_all_targets = 1;
}
-
- do
- {
- while (*p)
- {
+
+ /* so we target != null */
+ struct debug_msg_receiver **p = &target->dbgmsg;
+ 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)
+int delete_debug_msg_receiver(struct command_context *cmd_ctx, struct target *target)
{
- debug_msg_receiver_t **p;
- debug_msg_receiver_t *c;
+ struct debug_msg_receiver **p;
+ struct debug_msg_receiver *c;
int do_all_targets = 0;
-
+
/* if no target has been specified search all of them */
- if (target == NULL)
- {
+ if (!target) {
/* if no targets haven been specified */
- if (all_targets == NULL)
+ if (!all_targets)
return ERROR_OK;
-
+
target = all_targets;
do_all_targets = 1;
}
- do
- {
+ do {
p = &target->dbgmsg;
c = *p;
- while (c)
- {
- debug_msg_receiver_t *next = c->next;
- if (c->cmd_ctx == cmd_ctx)
- {
+ while (c) {
+ struct debug_msg_receiver *next = c->next;
+ if (c->cmd_ctx == cmd_ctx) {
*p = next;
free(c);
- if (*p == NULL)
- {
+ if (!*p) {
/* disable callback */
target->dbg_msg_enabled = 0;
}
return ERROR_OK;
- }
- else
+ } else
p = &(c->next);
c = next;
}
-
+
target = target->next;
} while (target && do_all_targets);
-
+
return ERROR_OK;
}
-static int handle_target_request_debugmsgs_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_target_request_debugmsgs_command)
{
- target_t *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
int receiving = 0;
-
- /* see if reciever is already registered */
- if (find_debug_msg_receiver(cmd_ctx, target) != NULL)
+
+ if (!target->type->target_request_data) {
+ LOG_ERROR("Target %s does not support target requests", target_name(target));
+ return ERROR_OK;
+ }
+
+ /* see if receiver is already registered */
+ if (find_debug_msg_receiver(CMD_CTX, target))
receiving = 1;
- if (argc > 0)
- {
- if (!strcmp(args[0], "enable") || !strcmp(args[0], "charmsg"))
- {
+ if (CMD_ARGC > 0) {
+ if (!strcmp(CMD_ARGV[0], "enable") || !strcmp(CMD_ARGV[0], "charmsg")) {
/* don't register if this command context is already receiving */
- if (!receiving)
- {
+ if (!receiving) {
receiving = 1;
- add_debug_msg_receiver(cmd_ctx, target);
+ add_debug_msg_receiver(CMD_CTX, target);
}
- charmsg_mode = !strcmp(args[0], "charmsg");
- }
- else if (!strcmp(args[0], "disable"))
- {
+ charmsg_mode = !strcmp(CMD_ARGV[0], "charmsg");
+ } else if (!strcmp(CMD_ARGV[0], "disable")) {
/* no need to delete a receiver if none is registered */
- if (receiving)
- {
+ if (receiving) {
receiving = 0;
- delete_debug_msg_receiver(cmd_ctx, target);
+ delete_debug_msg_receiver(CMD_CTX, target);
}
- }
- else
- {
- command_print(cmd_ctx, "usage: target_request debugmsgs ['enable'|'disable'|'charmsg']");
- }
+ } else
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
-
- command_print(cmd_ctx, "receiving debug messages from current target %s",
- (receiving) ? (charmsg_mode?"charmsg":"enabled") : "disabled" );
+
+ command_print(CMD, "receiving debug messages from current target %s",
+ (receiving) ? (charmsg_mode ? "charmsg" : "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");
+static const struct command_registration target_req_exec_command_handlers[] = {
+ {
+ .name = "debugmsgs",
+ .handler = handle_target_request_debugmsgs_command,
+ .mode = COMMAND_EXEC,
+ .help = "display and/or modify reception of debug messages from target",
+ .usage = "['enable'|'charmsg'|'disable']",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+static const struct command_registration target_req_command_handlers[] = {
+ {
+ .name = "target_request",
+ .mode = COMMAND_ANY,
+ .help = "target request command group",
+ .usage = "",
+ .chain = target_req_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
- return ERROR_OK;
+int target_request_register_commands(struct command_context *cmd_ctx)
+{
+ return register_commands(cmd_ctx, NULL, target_req_command_handlers);
}
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