Nicolas Pitre <nico@cam.org> Dragonite support
[openocd.git] / src / target / target.c
index e54a2c997a8582e791b73702f030f617d36227bf..0bce8279e2bb9148e3177f84af23432bd3ec5a4a 100644 (file)
@@ -2,7 +2,7 @@
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
- *   Copyright (C) 2007,2008 �yvind Harboe                                 *
+ *   Copyright (C) 2007-2009 Øyvind Harboe                                 *
  *   oyvind.harboe@zylin.com                                               *
  *                                                                         *
  *   Copyright (C) 2008, Duane Ellis                                       *
@@ -84,6 +84,7 @@ extern target_type_t arm966e_target;
 extern target_type_t arm926ejs_target;
 extern target_type_t fa526_target;
 extern target_type_t feroceon_target;
+extern target_type_t dragonite_target;
 extern target_type_t xscale_target;
 extern target_type_t cortexm3_target;
 extern target_type_t cortexa8_target;
@@ -101,6 +102,7 @@ target_type_t *target_types[] =
        &arm926ejs_target,
        &fa526_target,
        &feroceon_target,
+       &dragonite_target,
        &xscale_target,
        &cortexm3_target,
        &cortexa8_target,
@@ -249,22 +251,6 @@ target_state_name( target_t *t )
        return cp;
 }
 
-static int max_target_number(void)
-{
-       target_t *t;
-       int x;
-
-       x = -1;
-       t = all_targets;
-       while (t) {
-               if (x < t->target_number) {
-                       x = (t->target_number) + 1;
-               }
-               t = t->next;
-       }
-       return x;
-}
-
 /* determine the number of the new target */
 static int new_target_number(void)
 {
@@ -346,14 +332,19 @@ target_t *get_target(const char *id)
                        return target;
        }
 
+       /* It's OK to remove this fallback sometime after August 2010 or so */
+
        /* no match, try as number */
        unsigned num;
        if (parse_uint(id, &num) != ERROR_OK)
                return NULL;
 
        for (target = all_targets; target; target = target->next) {
-               if (target->target_number == (int)num)
+               if (target->target_number == (int)num) {
+                       LOG_WARNING("use '%s' as target identifier, not '%u'",
+                                       target->cmd_name, num);
                        return target;
+               }
        }
 
        return NULL;
@@ -374,11 +365,6 @@ static target_t *get_target_by_num(int num)
        return NULL;
 }
 
-int get_num_by_target(target_t *query_target)
-{
-       return query_target->target_number;
-}
-
 target_t* get_current_target(command_context_t *cmd_ctx)
 {
        target_t *target = get_target_by_num(cmd_ctx->current_target);
@@ -559,6 +545,11 @@ static int target_soft_reset_halt_imp(struct target_s *target)
                LOG_ERROR("Target not examined yet");
                return ERROR_FAIL;
        }
+       if (!target->type->soft_reset_halt_imp) {
+               LOG_ERROR("Target %s does not support soft_reset_halt",
+                               target->cmd_name);
+               return ERROR_FAIL;
+       }
        return target->type->soft_reset_halt_imp(target);
 }
 
@@ -1250,7 +1241,19 @@ int target_read_buffer(struct target_s *target, uint32_t address, uint32_t size,
                address += aligned;
                size -= aligned;
        }
+       
+       /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
+       if(size >=2)
+       {
+               int aligned = size - (size%2);
+               retval = target_read_memory(target, address, 2, aligned / 2, buffer);
+               if (retval != ERROR_OK)
+                       return retval;
 
+               buffer += aligned;
+               address += aligned;
+               size -= aligned;
+       }
        /* handle tail writes of less than 4 bytes */
        if (size > 0)
        {
@@ -1505,10 +1508,19 @@ int target_register_user_commands(struct command_context_s *cmd_ctx)
        register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
        register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
 
-       register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
-       register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
-       register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
-       register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
+       register_command(cmd_ctx,  NULL, "bp",
+                       handle_bp_command, COMMAND_EXEC,
+                       "list or set breakpoint [<address> <length> [hw]]");
+       register_command(cmd_ctx,  NULL, "rbp",
+                       handle_rbp_command, COMMAND_EXEC,
+                       "remove breakpoint <address>");
+       register_command(cmd_ctx,  NULL, "wp",
+                       handle_wp_command, COMMAND_EXEC,
+                       "list or set watchpoint "
+                               "[<address> <length> <r/w/a> [value] [mask]]");
+       register_command(cmd_ctx,  NULL, "rwp",
+                       handle_rwp_command, COMMAND_EXEC,
+                       "remove watchpoint <address>");
 
        register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19'] [min_address] [max_length]");
        register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
@@ -1741,17 +1753,28 @@ static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char
                while (cache)
                {
                        int i;
-                       for (i = 0; i < cache->num_regs; i++)
+
+                       for (i = 0, reg = cache->reg_list;
+                                       i < cache->num_regs;
+                                       i++, reg++, count++)
                        {
-                               value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
-                               command_print(cmd_ctx, "(%i) %s (/%i): 0x%s (dirty: %i, valid: %i)",
-                                                         count++,
-                                                         cache->reg_list[i].name,
-                                                         (int)(cache->reg_list[i].size),
-                                                         value,
-                                                         cache->reg_list[i].dirty,
-                                                         cache->reg_list[i].valid);
-                               free(value);
+                               /* only print cached values if they are valid */
+                               if (reg->valid) {
+                                       value = buf_to_str(reg->value,
+                                                       reg->size, 16);
+                                       command_print(cmd_ctx,
+                                                       "(%i) %s (/%" PRIu32 "): 0x%s%s",
+                                                       count, reg->name,
+                                                       reg->size, value,
+                                                       reg->dirty
+                                                               ? " (dirty)"
+                                                               : "");
+                                       free(value);
+                               } else {
+                                       command_print(cmd_ctx, "(%i) %s (/%" PRIu32 ")",
+                                                         count, reg->name,
+                                                         reg->size) ;
+                               }
                        }
                        cache = cache->next;
                }
@@ -2313,7 +2336,7 @@ static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cm
                                break;
                        }
                        image_size += length;
-                       command_print(cmd_ctx, "%u byte written at address 0x%8.8" PRIx32 "",
+                       command_print(cmd_ctx, "%u bytes written at address 0x%8.8" PRIx32 "",
                                                  (unsigned int)length,
                                                  image.sections[i].base_address + offset);
                }
@@ -3526,9 +3549,11 @@ static int target_configure(Jim_GetOptInfo *goi, target_t *target)
                                }
 
                                if (goi->isconfigure) {
+                                       bool replace = true;
                                        if (teap == NULL) {
                                                /* create new */
                                                teap = calloc(1, sizeof(*teap));
+                                               replace = false;
                                        }
                                        teap->event = n->value;
                                        Jim_GetOpt_Obj(goi, &o);
@@ -3548,9 +3573,12 @@ static int target_configure(Jim_GetOptInfo *goi, target_t *target)
                                         */
                                        Jim_IncrRefCount(teap->body);
 
-                                       /* add to head of event list */
-                                       teap->next = target->event_action;
-                                       target->event_action = teap;
+                                       if (!replace)
+                                       {
+                                               /* add to head of event list */
+                                               teap->next = target->event_action;
+                                               target->event_action = teap;
+                                       }
                                        Jim_SetEmptyResult(goi->interp);
                                } else {
                                        /* get */
@@ -4015,6 +4043,13 @@ static int tcl_target_func(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
                }
                if (!target->tap->enabled)
                        goto err_tap_disabled;
+               if (!target->type->assert_reset
+                               || !target->type->deassert_reset) {
+                       Jim_SetResult_sprintf(interp,
+                                       "No target-specific reset for %s",
+                                       target->cmd_name);
+                       return JIM_ERR;
+               }
                /* determine if we should halt or not. */
                target->reset_halt = !!a;
                /* When this happens - all workareas are invalid. */
@@ -4355,6 +4390,8 @@ static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
                return target_create(&goi);
                break;
        case TG_CMD_NUMBER:
+               /* It's OK to remove this mechanism sometime after August 2010 or so */
+               LOG_WARNING("don't use numbers as target identifiers; use names");
                if (goi.argc != 1) {
                        Jim_SetResult_sprintf(goi.interp, "expected: target number ?NUMBER?");
                        return JIM_ERR;
@@ -4363,23 +4400,25 @@ static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
                if (e != JIM_OK) {
                        return JIM_ERR;
                }
-               {
-                       target_t *t;
-                       t = get_target_by_num(w);
-                       if (t == NULL) {
-                               Jim_SetResult_sprintf(goi.interp,"Target: number %d does not exist", (int)(w));
-                               return JIM_ERR;
-                       }
-                       Jim_SetResultString(goi.interp, t->cmd_name, -1);
-                       return JIM_OK;
+               for (x = 0, target = all_targets; target; target = target->next, x++) {
+                       if (target->target_number == w)
+                               break;
                }
+               if (target == NULL) {
+                       Jim_SetResult_sprintf(goi.interp,
+                                       "Target: number %d does not exist", (int)(w));
+                       return JIM_ERR;
+               }
+               Jim_SetResultString(goi.interp, target->cmd_name, -1);
+               return JIM_OK;
        case TG_CMD_COUNT:
                if (goi.argc != 0) {
                        Jim_WrongNumArgs(goi.interp, 0, goi.argv, "<no parameters>");
                        return JIM_ERR;
                }
-               Jim_SetResult(goi.interp,
-                                          Jim_NewIntObj(goi.interp, max_target_number()));
+               for (x = 0, target = all_targets; target; target = target->next, x++)
+                       continue;
+               Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, x));
                return JIM_OK;
        }
 
@@ -4500,7 +4539,7 @@ static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, cha
                        fastload[i].length = length;
 
                        image_size += length;
-                       command_print(cmd_ctx, "%u byte written at address 0x%8.8x",
+                       command_print(cmd_ctx, "%u bytes written at address 0x%8.8x",
                                                  (unsigned int)length,
                                                  ((unsigned int)(image.sections[i].base_address + offset)));
                }

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