From b06f254b248db04c71f685c811e4371ea8ae8ff3 Mon Sep 17 00:00:00 2001 From: oharboe Date: Fri, 11 Jul 2008 17:40:15 +0000 Subject: Charles Hardin ckhardin at gmail.com This address the >32 bit problem with drscan also added a check for bypass in the execute since this will manifest itself as a memory corruption when this check helps to debug the problem alot easier git-svn-id: svn://svn.berlios.de/openocd/trunk@794 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/jtag/jtag.c | 72 +++++++++++++++++++++++++++++++++++---------------------- 1 file changed, 45 insertions(+), 27 deletions(-) (limited to 'src/jtag/jtag.c') diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index 93e47af7..2b1a56fb 100644 --- a/src/jtag/jtag.c +++ b/src/jtag/jtag.c @@ -603,6 +603,11 @@ int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, bypass_devices++; device = device->next; } + if (bypass_devices >= jtag_num_devices) + { + LOG_ERROR("all devices in bypass"); + return ERROR_JTAG_DEVICE_ERROR; + } /* allocate memory for a new list member */ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); @@ -1493,7 +1498,6 @@ int jtag_register_commands(struct command_context_s *cmd_ctx) COMMAND_EXEC, "move to Run-Test/Idle, and execute "); register_command(cmd_ctx, NULL, "irscan", handle_irscan_command, COMMAND_EXEC, "execute IR scan [dev2] [instr2] ..."); - add_jim("drscan", Jim_Command_drscan, "execute DR scan ..."); register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command, @@ -2043,47 +2047,54 @@ int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **a return ERROR_OK; } -/* FIX!!! this command is busted for > 32 bits */ int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) { int retval; scan_field_t *fields; int num_fields; int field_count = 0; - int i, j; - + int i, j, e; + long device; + + /* args[1] = device + * args[2] = num_bits + * args[3] = hex string + * ... repeat num bits and hex string ... + */ if ((argc < 4) || ((argc % 2)!=0)) { + Jim_WrongNumArgs(interp, 1, args, "wrong arguments"); return JIM_ERR; } for (i = 2; i < argc; i+=2) { long bits; - Jim_GetLong(interp, args[i], &bits); - if ((bits<=0)||(bits>32)) - { -// LOG_ERROR("minimum 1/maximum 32 bit fields - patches gratefully accepted!"); - return JIM_ERR; - } + + e = Jim_GetLong(interp, args[i], &bits); + if (e != JIM_OK) + return e; } - long device; - Jim_GetLong(interp, args[1], &device); - num_fields=(argc-2)/2; - fields = malloc(sizeof(scan_field_t) * num_fields); + e = Jim_GetLong(interp, args[1], &device); + if (e != JIM_OK) + return e; + num_fields=(argc-2)/2; + fields = malloc(sizeof(scan_field_t) * num_fields); for (i = 2; i < argc; i+=2) { long bits; + int len; + const char *str; + Jim_GetLong(interp, args[i], &bits); - long val; - Jim_GetLong(interp, args[i+1], &val); + str = Jim_GetString(args[i+1], &len); fields[field_count].device = device; fields[field_count].num_bits = bits; fields[field_count].out_value = malloc(CEIL(bits, 8)); - buf_set_u32(fields[field_count].out_value, 0, bits, val); + str_to_buf(str, len, fields[field_count].out_value, bits, 0); fields[field_count].out_mask = NULL; fields[field_count].in_value = fields[field_count].out_value; fields[field_count].in_check_mask = NULL; @@ -2093,28 +2104,35 @@ int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) } jtag_add_dr_scan(num_fields, fields, -1); - retval=jtag_execute_queue(); - + retval = jtag_execute_queue(); + if (retval != ERROR_OK) + { + Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); + Jim_AppendStrings(interp, Jim_GetResult(interp), "drscan: jtag execute failed", NULL); + return JIM_ERR; + } + field_count=0; - Jim_Obj *list=Jim_NewListObj(interp, NULL, 0); + Jim_Obj *list = Jim_NewListObj(interp, NULL, 0); for (i = 2; i < argc; i+=2) { long bits; - Jim_GetLong(interp, args[i], &bits); - - u32 val = buf_get_u32(fields[field_count].in_value, 0, bits); + char *str; - Jim_ListAppendElement(interp, list, Jim_NewIntObj(interp, val)); - + Jim_GetLong(interp, args[i], &bits); + str = buf_to_str(fields[field_count].in_value, bits, 16); free(fields[field_count].out_value); + + Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str))); + free(str); field_count++; } - + Jim_SetResult(interp, list); free(fields); - return retval?JIM_OK:JIM_ERR; + return JIM_OK; } int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -- cgit v1.2.3-18-g5258