-{
- int i;
- jtag_command_t **last_cmd = jtag_get_last_command_p();
-
- if (jtag_trst == 1)
- {
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
- }
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->next = NULL;
- (*last_cmd)->type = JTAG_SCAN;
-
- /* allocate memory for scan command */
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
- (*last_cmd)->cmd.scan->ir_scan = 0;
- (*last_cmd)->cmd.scan->num_fields = num_fields;
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
- (*last_cmd)->cmd.scan->end_state = state;
-
- if (state != -1)
- cmd_queue_end_state = state;
-
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);
-
- if (cmd_queue_end_state == TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
-
- cmd_queue_cur_state = cmd_queue_end_state;
-
- for (i = 0; i < num_fields; i++)
- {
- int num_bits = fields[i].num_bits;
- int num_bytes = CEIL(fields[i].num_bits, 8);
- (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
- (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
- (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
- (*last_cmd)->cmd.scan->fields[i].in_check_value = buf_cpy(fields[i].in_check_value, cmd_queue_alloc(num_bytes), num_bits);
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = buf_cpy(fields[i].in_check_mask, cmd_queue_alloc(num_bytes), num_bits);
- (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
- }
-
- return ERROR_OK;
-}
-int jtag_add_statemove(enum tap_state state)
-{
- jtag_command_t **last_cmd = jtag_get_last_command_p();
-
- if (jtag_trst == 1)
- {
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
- }
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->next = NULL;
- (*last_cmd)->type = JTAG_STATEMOVE;
-
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
- (*last_cmd)->cmd.statemove->end_state = state;
-
- if (state != -1)
- cmd_queue_end_state = state;
-
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);
-
- if (cmd_queue_end_state == TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
-
- cmd_queue_cur_state = cmd_queue_end_state;
-
- return ERROR_OK;
-}
-
-int jtag_add_pathmove(int num_states, enum tap_state *path)
-{
- jtag_command_t **last_cmd = jtag_get_last_command_p();
- int i;
-
- if (jtag_trst == 1)
- {
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
- }
-
- /* the last state has to be a stable state */
- if (tap_move_map[path[num_states - 1]] == -1)
- {
- ERROR("TAP path doesn't finish in a stable state");
- return ERROR_JTAG_NOT_IMPLEMENTED;
- }
-
- if (jtag->support_statemove)
- {
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->next = NULL;
- (*last_cmd)->type = JTAG_RUNTEST;
-
- (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
- (*last_cmd)->cmd.pathmove->num_states = num_states;
- (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
-
- for (i = 0; i < num_states; i++)
- (*last_cmd)->cmd.pathmove->path[i] = path[i];
- }
- else
- {
- /* validate the desired path, and see if it fits a default path */
- int begin = 0;
- int end = 0;
- int j;
-
- for (i = 0; i < num_states; i++)
- {
- for (j = i; j < num_states; j++)
- {
- if (tap_move_map[path[j]] != -1)
- {
- end = j;
- break;
- }
- }
-
- if (begin - end <= 7) /* a default path spans no more than 7 states */
- {
- jtag_add_statemove(path[end]);
- }
- else
- {
- ERROR("encountered a TAP path that can't be fulfilled by default paths");
- return ERROR_JTAG_NOT_IMPLEMENTED;
- }
-
- i = end;
- }
- }
-
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);
-
- if (cmd_queue_end_state == TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
-
- cmd_queue_cur_state = path[num_states - 1];
-
- return ERROR_OK;
-}
-
-int jtag_add_runtest(int num_cycles, enum tap_state state)
-{
- jtag_command_t **last_cmd = jtag_get_last_command_p();
-
- if (jtag_trst == 1)
- {
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
- }
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- (*last_cmd)->next = NULL;
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->type = JTAG_RUNTEST;
-
- (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
- (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
- (*last_cmd)->cmd.runtest->end_state = state;
-
- if (state != -1)
- cmd_queue_end_state = state;
-
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);
-
- if (cmd_queue_end_state == TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
-
- cmd_queue_cur_state = cmd_queue_end_state;
-
- return ERROR_OK;
-}
-
-int jtag_add_reset(int req_trst, int req_srst)
-{
- int trst_with_tms = 0;
-
- jtag_command_t **last_cmd = jtag_get_last_command_p();
-
- if (req_trst == -1)
- req_trst = jtag_trst;
-
- if (req_srst == -1)
- req_srst = jtag_srst;
-
- /* Make sure that jtag_reset_config allows the requested reset */
- /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
- if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))
- return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
-
- /* if TRST pulls SRST, we reset with TAP T-L-R */
- if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
- {
- req_trst = 0;
- trst_with_tms = 1;
- }
-
- if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
- {
- ERROR("requested nSRST assertion, but the current configuration doesn't support this");
- return ERROR_JTAG_RESET_CANT_SRST;
- }
-
- if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
- {
- req_trst = 0;
- trst_with_tms = 1;
- }
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- (*last_cmd)->next = NULL;
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->type = JTAG_RESET;
-
- (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
- (*last_cmd)->cmd.reset->trst = req_trst;
- (*last_cmd)->cmd.reset->srst = req_srst;
-
- jtag_trst = req_trst;
- jtag_srst = req_srst;
-
- if (jtag_srst)
- {
- jtag_call_event_callbacks(JTAG_SRST_ASSERTED);
- }
- else
- {
- jtag_call_event_callbacks(JTAG_SRST_RELEASED);
- if (jtag_nsrst_delay)
- jtag_add_sleep(jtag_nsrst_delay);
- }
-
- if (trst_with_tms)
- {
- last_cmd = &((*last_cmd)->next);
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- (*last_cmd)->next = NULL;
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->type = JTAG_STATEMOVE;
-
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
- (*last_cmd)->cmd.statemove->end_state = TAP_TLR;
-
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
- cmd_queue_cur_state = TAP_TLR;
- cmd_queue_end_state = TAP_TLR;
-
- return ERROR_OK;
- }
- else
- {
- if (jtag_trst)
- {
- /* we just asserted nTRST, so we're now in Test-Logic-Reset,
- * and inform possible listeners about this
- */
- cmd_queue_cur_state = TAP_TLR;
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
- }
- else
- {
- /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
- * but we might want to add a delay to give the TAP time to settle
- */
- if (jtag_ntrst_delay)
- jtag_add_sleep(jtag_ntrst_delay);
- }
- }
-
- return ERROR_OK;
-}
-
-int jtag_add_end_state(enum tap_state state)
-{
- jtag_command_t **last_cmd = jtag_get_last_command_p();
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- (*last_cmd)->next = NULL;
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->type = JTAG_END_STATE;
-
- (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t));
- (*last_cmd)->cmd.end_state->end_state = state;
-
- if (state != -1)
- cmd_queue_end_state = state;
-
- return ERROR_OK;
-}
-
-int jtag_add_sleep(u32 us)
-{
- jtag_command_t **last_cmd = jtag_get_last_command_p();
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- (*last_cmd)->next = NULL;
- last_comand_pointer = &((*last_cmd)->next);
- (*last_cmd)->type = JTAG_SLEEP;
-
- (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
- (*last_cmd)->cmd.sleep->us = us;
-
- return ERROR_OK;
-}
-
-int jtag_scan_size(scan_command_t *cmd)
-{
- int bit_count = 0;
- int i;
-
- /* count bits in scan command */
- for (i=0; i<cmd->num_fields; i++)
- {
- bit_count += cmd->fields[i].num_bits;
- }
-
- return bit_count;
-}
-
-int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
-{
- int bit_count = 0;
- int i;
-
- bit_count = jtag_scan_size(cmd);
- *buffer = malloc(CEIL(bit_count, 8));
-
- bit_count = 0;
-
- for (i = 0; i < cmd->num_fields; i++)
- {
- if (cmd->fields[i].out_value)
- {
- char* char_buf = buf_to_char(cmd->fields[i].out_value, cmd->fields[i].num_bits);
- buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("fields[%i].out_value: %s", i, char_buf);
-#endif
- free(char_buf);
- }
-
- bit_count += cmd->fields[i].num_bits;
- }
-
- return bit_count;
-
-}
-
-int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
-{
- int i;
- int bit_count = 0;
- int retval = ERROR_OK;
-
- for (i=0; i < cmd->num_fields; i++)
- {
- /* if neither in_value nor in_check_value are specified we don't have to examine this field */
- if (cmd->fields[i].in_value || cmd->fields[i].in_check_value)
- {
- int num_bits = cmd->fields[i].num_bits;
-
- if (cmd->fields[i].in_value)
- {
- char *char_buf;
- buf_set_buf(buffer, bit_count, cmd->fields[i].in_value, 0, num_bits);
- char_buf = buf_to_char(cmd->fields[i].in_value, num_bits);
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("fields[%i].in_value: %s", i, char_buf);
-#endif
- free(char_buf);
- if (cmd->fields[i].in_handler)
- {
- if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv) != ERROR_OK)
- {
- /* TODO: error reporting */
- WARNING("in_handler reported a failed check");
- retval = ERROR_JTAG_QUEUE_FAILED;
- }
- }
- }
-
- if (cmd->fields[i].in_check_value)
- {
- u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
- if ((cmd->fields[i].in_check_mask && buf_cmp_mask(captured, cmd->fields[i].in_check_value, cmd->fields[i].in_check_mask, num_bits))
- || (!cmd->fields[i].in_check_mask && buf_cmp(captured, cmd->fields[i].in_check_mask, num_bits)))
- {
- char *captured_char = buf_to_char(captured, num_bits);
- char *in_check_value_char = buf_to_char(cmd->fields[i].in_check_value, num_bits);
- char *in_check_mask_char = buf_to_char(cmd->fields[i].in_check_mask, num_bits);
- /* TODO: error reporting */
- WARNING("value captured during scan didn't pass the requested check: captured: %s check_value: %s check_mask: %s", captured_char, in_check_value_char, in_check_mask_char);
- retval = ERROR_JTAG_QUEUE_FAILED;
- free(captured_char);
- free(in_check_value_char);
- free(in_check_mask_char);
- }
- free(captured);
- }
- }
- bit_count += cmd->fields[i].num_bits;
- }
-
- return retval;
-}
-
-enum scan_type jtag_scan_type(scan_command_t *cmd)
-{
- int i;
- int type = 0;
-
- for (i=0; i < cmd->num_fields; i++)
- {
- if (cmd->fields[i].in_check_value || cmd->fields[i].in_value)
- type |= SCAN_IN;
- if (cmd->fields[i].out_value)
- type |= SCAN_OUT;
- }
-
- return type;
-}
-
-int jtag_execute_queue(void)
-{
- int retval;
-
- retval = jtag->execute_queue();
-
- cmd_queue_free();
-
- jtag_command_queue = NULL;
- last_comand_pointer = &jtag_command_queue;
-
- return retval;
-}
-
-int jtag_cancel_queue(void)
-{
- cmd_queue_free();
- jtag_command_queue = NULL;
- last_comand_pointer = &jtag_command_queue;
-
- return ERROR_OK;
-}
-
-int jtag_reset_callback(enum jtag_event event, void *priv)
-{
- jtag_device_t *device = priv;
-
- DEBUG("");
-
- if (event == JTAG_TRST_ASSERTED)
- {
- buf_set_ones(device->cur_instr, device->ir_length);
- device->bypass = 1;
- }
-
- return ERROR_OK;
-}
-
-void jtag_sleep(u32 us)
-{
- usleep(us);
-}
-
-int jtag_validate_chain()
-{
- jtag_device_t *device = jtag_devices;
- int total_ir_length = 0;
- u8 *ir_test = NULL;
- scan_field_t field;
- int chain_pos = 0;
-
- while (device)
- {
- total_ir_length += device->ir_length;
- device = device->next;
- }
-
- total_ir_length += 2;
- ir_test = malloc(CEIL(total_ir_length, 8));
- buf_set_ones(ir_test, total_ir_length);
-
- field.device = 0;
- field.num_bits = total_ir_length;
- field.out_value = ir_test;
- field.out_mask = NULL;
- field.in_value = ir_test;
- field.in_check_value = NULL;
- field.in_check_mask = NULL;
- field.in_handler = NULL;
- field.in_handler_priv = NULL;
-
- jtag_add_plain_ir_scan(1, &field, TAP_TLR);
- jtag_execute_queue();
-
- device = jtag_devices;
- while (device)
- {
- if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
- {
- ERROR("Error validating JTAG scan chain, IR mismatch");
- exit(-1);
- }
- chain_pos += device->ir_length;
- device = device->next;
- }
-
- if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
- {
- ERROR("Error validating JTAG scan chain, IR mismatch");
- exit(-1);
- }
-
- free(ir_test);
-
- return ERROR_OK;
-}
-
-int jtag_register_commands(struct command_context_s *cmd_ctx)
-{
- register_command(cmd_ctx, NULL, "interface", handle_interface_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
- COMMAND_ANY, "set jtag speed (if supported) <speed>");
- register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
- COMMAND_CONFIG, NULL);
- register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
- COMMAND_CONFIG, NULL);
-
- register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
- COMMAND_EXEC, "print current scan chain configuration");
-
- register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
- COMMAND_EXEC, "finish JTAG operations in <tap_state>");
- register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
- COMMAND_EXEC, "toggle reset lines <trst> <srst>");
- register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
- COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
- register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,
- COMMAND_EXEC, "move to current endstate or [tap_state]");
- register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
- COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
- register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
- COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
-
- register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
- COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
- return ERROR_OK;
-}
-
-int jtag_init(struct command_context_s *cmd_ctx)
-{
- int i;
-
- DEBUG("");
-
- if (jtag_speed == -1)
- jtag_speed = 0;
-
- if (jtag_interface && (jtag_interface[0] != 0))
- /* configuration var 'jtag_interface' is set, and not empty */
- for (i = 0; jtag_interfaces[i]; i++)
- {
- if (strcmp(jtag_interface, jtag_interfaces[i]->name) == 0)
- {
- jtag_device_t *device;
- device = jtag_devices;
-
- if (jtag_interfaces[i]->init() != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
- jtag = jtag_interfaces[i];
-
- jtag_ir_scan_size = 0;
- jtag_num_devices = 0;
- while (device != NULL)
- {
- jtag_ir_scan_size += device->ir_length;
- jtag_num_devices++;
- device = device->next;
- }
-
- jtag_add_statemove(TAP_TLR);
- jtag_execute_queue();
-
- jtag_validate_chain();
-
- return ERROR_OK;
- }
- }
-
- /* no valid interface was found (i.e. the configuration option,
- * didn't match one of the compiled-in interfaces
- */
- ERROR("No valid jtag interface found (%s)", jtag_interface);
- jtag = NULL;
- return ERROR_JTAG_INVALID_INTERFACE;
-}
-
-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- int i;
-
- /* only if the configuration var isn't overwritten from cmdline */
- if (!jtag_interface)
- {
- if (args[0] && (args[0][0] != 0))
- {
- for (i=0; jtag_interfaces[i]; i++)
- {
- if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
- {
- if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
- exit(-1);
-
- jtag_interface = jtag_interfaces[i]->name;
-
- return ERROR_OK;
- }
- }
- }
-
- /* remember the requested interface name, so we can complain about it later */
- jtag_interface = strdup(args[0]);
- DEBUG("'interface' command didn't specify a valid interface");
- }
-
- return ERROR_OK;
-}
-
-int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- jtag_device_t **last_device_p = &jtag_devices;
-
- if (*last_device_p)
- {
- while ((*last_device_p)->next)
- last_device_p = &((*last_device_p)->next);
- last_device_p = &((*last_device_p)->next);
- }
-
- if (argc < 3)
- return ERROR_OK;
-
- *last_device_p = malloc(sizeof(jtag_device_t));
- (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
-
- (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
- buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
- (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
- buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
-
- (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
- (*last_device_p)->bypass = 1;
- buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
-
- (*last_device_p)->next = NULL;
-
- jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
-
- jtag_num_devices++;
-
- return ERROR_OK;
-}
-
-int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- jtag_device_t *device = jtag_devices;
- int device_count = 0;
-
- while (device)
- {
- u32 expected, expected_mask, cur_instr;
- expected = buf_get_u32(device->expected, 0, device->ir_length);
- expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
- cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
- command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);
- device = device->next;
- device_count++;
- }
-
- return ERROR_OK;
-}
-
-int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc >= 1)
- {
- if (strcmp(args[0], "none") == 0)
- jtag_reset_config = RESET_NONE;
- else if (strcmp(args[0], "trst_only") == 0)
- jtag_reset_config = RESET_HAS_TRST;
- else if (strcmp(args[0], "srst_only") == 0)
- jtag_reset_config = RESET_HAS_SRST;
- else if (strcmp(args[0], "trst_and_srst") == 0)
- jtag_reset_config = RESET_TRST_AND_SRST;
- else
- {
- ERROR("invalid reset_config argument");
- exit(-1);
- }
- }
-
- if (argc >= 2)
- {
- if (strcmp(args[1], "srst_pulls_trst") == 0)
- jtag_reset_config |= RESET_SRST_PULLS_TRST;
- else if (strcmp(args[1], "trst_pulls_srst") == 0)
- jtag_reset_config |= RESET_TRST_PULLS_SRST;
- else if (strcmp(args[1], "combined") == 0)
- jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
- else if (strcmp(args[1], "separate") == 0)
- jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
- else
- {
- ERROR("invalid reset_config argument");
- exit(-1);
- }
- }
-
- if (argc >= 3)
- {
- if (strcmp(args[2], "trst_open_drain") == 0)
- jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
- else if (strcmp(args[2], "trst_push_pull") == 0)
- jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
- else
- {
- ERROR("invalid reset_config argument");
- exit(-1);
- }
- }
-
- if (argc >= 4)
- {
- if (strcmp(args[3], "srst_push_pull") == 0)
- jtag_reset_config |= RESET_SRST_PUSH_PULL;
- else if (strcmp(args[3], "srst_open_drain") == 0)
- jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
- else
- {
- ERROR("invalid reset_config argument");
- exit(-1);
- }
- }
-
- return ERROR_OK;
-}
-
-int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc < 1)
- {
- ERROR("jtag_nsrst_delay <ms> command takes one required argument");
- exit(-1);
- }
- else
- {
- jtag_nsrst_delay = strtoul(args[0], NULL, 0);
- }
-
- return ERROR_OK;
-}
-
-int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc < 1)
- {
- ERROR("jtag_ntrst_delay <ms> command takes one required argument");
- exit(-1);
- }
- else
- {
- jtag_ntrst_delay = strtoul(args[0], NULL, 0);
- }
-
- return ERROR_OK;
-}
-
-int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc == 0)
- command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);
-
- if (argc > 0)
- {
- /* this command can be called during CONFIG,
- * in which case jtag isn't initialized */
- if (jtag)
- jtag->speed(strtoul(args[0], NULL, 0));
- else
- jtag_speed = strtoul(args[0], NULL, 0);
- }
-
- return ERROR_OK;
-}
-
-int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- enum tap_state state;
-
- if (argc < 1)
- {
- command_print(cmd_ctx, "usage: endstate <tap_state>");
- return ERROR_OK;
- }
-
- for (state = 0; state < 16; state++)
- {
- if (strcmp(args[0], tap_state_strings[state]) == 0)
- {
- jtag_add_end_state(state);
- jtag_execute_queue();
- }
- }
-
- return ERROR_OK;
-}
-
-int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- int trst = -1;
- int srst = -1;
- char *usage = "usage: jtag_reset <trst> <srst>";
- int retval;
-
- if (argc < 1)
- {
- command_print(cmd_ctx, usage);
- return ERROR_OK;
- }
-
- if (args[0][0] == '1')
- trst = 1;
- else if (args[0][0] == '0')
- trst = 0;
- else
- {
- command_print(cmd_ctx, usage);
- return ERROR_OK;
- }
-
- if (args[1][0] == '1')
- srst = 1;
- else if (args[1][0] == '0')
- srst = 0;
- else
- {
- command_print(cmd_ctx, usage);
- return ERROR_OK;
- }
-
- if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK)
- {
- switch (retval)
- {
- case ERROR_JTAG_RESET_WOULD_ASSERT_TRST:
- command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]);
- break;
- case ERROR_JTAG_RESET_CANT_SRST:
- command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it");
- break;
- default:
- command_print(cmd_ctx, "unknown error");
- }
- }
- jtag_execute_queue();
-
- return ERROR_OK;
-}
-
-int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc < 1)
- {
- command_print(cmd_ctx, "usage: runtest <num_cycles>");
- return ERROR_OK;
- }
-
- jtag_add_runtest(strtol(args[0], NULL, 0), -1);
- jtag_execute_queue();
-
- return ERROR_OK;
-
-}
-
-int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- enum tap_state state;
-
- state = -1;
- if (argc == 1)
- {
- for (state = 0; state < 16; state++)
- {
- if (strcmp(args[0], tap_state_strings[state]) == 0)
- {
- break;
- }
- }
- }
-
- jtag_add_statemove(state);
- jtag_execute_queue();
-
- return ERROR_OK;
-
-}
-
-int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- int i;
- scan_field_t *fields;
-
- if ((argc < 2) || (argc % 2))
- {
- command_print(cmd_ctx, "usage: irscan <device> <instr> [dev2] [instr2] ...");
- return ERROR_OK;
- }
-
- fields = malloc(sizeof(scan_field_t) * argc / 2);
-
- for (i = 0; i < argc / 2; i++)
- {
- int device = strtoul(args[i*2], NULL, 0);
- int field_size = jtag_get_device(device)->ir_length;
- fields[i].device = device;
- fields[i].out_value = malloc(CEIL(field_size, 8));
- buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
- fields[i].out_mask = NULL;
- fields[i].in_value = NULL;
- fields[i].in_check_mask = NULL;
- fields[i].in_handler = NULL;
- fields[i].in_handler_priv = NULL;
- }
-
- jtag_add_ir_scan(argc / 2, fields, -1);
- jtag_execute_queue();
-
- for (i = 0; i < argc / 2; i++)
- free(fields[i].out_value);
-
- free (fields);
-
- return ERROR_OK;
-}
-
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- scan_field_t *fields;
- int num_fields = 0;
- int field_count = 0;
- var_t *var;
- int i, j;
-
- if ((argc < 2) || (argc % 2))
- {
- command_print(cmd_ctx, "usage: drscan <device> <var> [dev2] [var2]");
- return ERROR_OK;
- }
-
- for (i = 0; i < argc; i+=2)
- {
- var = get_var_by_namenum(args[i+1]);
- if (var)
- {
- num_fields += var->num_fields;
- }
- else
- {
- command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
- return ERROR_OK;
- }
- }
-
- fields = malloc(sizeof(scan_field_t) * num_fields);
-
- for (i = 0; i < argc; i+=2)
- {
- var = get_var_by_namenum(args[i+1]);
-
- for (j = 0; j < var->num_fields; j++)
- {
- fields[field_count].device = strtol(args[i], NULL, 0);
- fields[field_count].num_bits = var->fields[j].num_bits;
- fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
- buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
- fields[field_count].out_mask = NULL;
- fields[field_count].in_value = fields[field_count].out_value;
- fields[field_count].in_check_mask = NULL;
- fields[field_count].in_check_value = NULL;
- fields[field_count].in_handler = field_le_to_host;
- fields[field_count++].in_handler_priv = &(var->fields[j]);
- }
- }
-
- jtag_add_dr_scan(num_fields, fields, -1);
- jtag_execute_queue();
-
- for (i = 0; i < argc / 2; i++)
- free(fields[i].out_value);
-
- free(fields);
-
- return ERROR_OK;
-}
-
-int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- if (argc == 0)
- {
- command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
- return ERROR_OK;
- }
-
- if (strcmp(args[0], "enable") == 0)
- {
- jtag_verify_capture_ir = 1;
- }
- else if (strcmp(args[0], "disable") == 0)
- {
- jtag_verify_capture_ir = 0;
- }
-
- return ERROR_OK;
-}
+{\r
+ int i;\r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ \r
+ if (jtag_trst == 1)\r
+ {\r
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
+ return ERROR_JTAG_TRST_ASSERTED;\r
+ }\r
+\r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->next = NULL;\r
+ (*last_cmd)->type = JTAG_SCAN;\r
+\r
+ /* allocate memory for scan command */\r
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
+ (*last_cmd)->cmd.scan->ir_scan = 0;\r
+ (*last_cmd)->cmd.scan->num_fields = num_fields;\r
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));\r
+ (*last_cmd)->cmd.scan->end_state = state;\r
+ \r
+ if (state != -1)\r
+ cmd_queue_end_state = state;\r
+\r
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
+ \r
+ if (cmd_queue_end_state == TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
+ \r
+ cmd_queue_cur_state = cmd_queue_end_state;\r
+ \r
+ for (i = 0; i < num_fields; i++)\r
+ {\r
+ int num_bits = fields[i].num_bits;\r
+ int num_bytes = CEIL(fields[i].num_bits, 8);\r
+ (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;\r
+ (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;\r
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);\r
+ (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);\r
+ (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;\r
+ (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;\r
+ (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;\r
+ (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;\r
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+int jtag_add_statemove(enum tap_state state)\r
+{\r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ \r
+ if (jtag_trst == 1)\r
+ {\r
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
+ return ERROR_JTAG_TRST_ASSERTED;\r
+ }\r
+\r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->next = NULL;\r
+ (*last_cmd)->type = JTAG_STATEMOVE;\r
+\r
+ (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));\r
+ (*last_cmd)->cmd.statemove->end_state = state;\r
+ \r
+ if (state != -1)\r
+ cmd_queue_end_state = state;\r
+\r
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
+ \r
+ if (cmd_queue_end_state == TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
+ \r
+ cmd_queue_cur_state = cmd_queue_end_state;\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_add_pathmove(int num_states, enum tap_state *path)\r
+{\r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ int i;\r
+ \r
+ if (jtag_trst == 1)\r
+ {\r
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
+ return ERROR_JTAG_TRST_ASSERTED;\r
+ }\r
+ \r
+ /* the last state has to be a stable state */\r
+ if (tap_move_map[path[num_states - 1]] == -1)\r
+ {\r
+ ERROR("TAP path doesn't finish in a stable state");\r
+ return ERROR_JTAG_NOT_IMPLEMENTED;\r
+ }\r
+ \r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->next = NULL;\r
+ (*last_cmd)->type = JTAG_PATHMOVE;\r
+\r
+ (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));\r
+ (*last_cmd)->cmd.pathmove->num_states = num_states;\r
+ (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);\r
+ \r
+ for (i = 0; i < num_states; i++)\r
+ (*last_cmd)->cmd.pathmove->path[i] = path[i];\r
+\r
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
+ \r
+ if (cmd_queue_end_state == TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
+ \r
+ cmd_queue_cur_state = path[num_states - 1];\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_add_runtest(int num_cycles, enum tap_state state)\r
+{\r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ \r
+ if (jtag_trst == 1)\r
+ {\r
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
+ return ERROR_JTAG_TRST_ASSERTED;\r
+ }\r
+\r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ (*last_cmd)->next = NULL;\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->type = JTAG_RUNTEST;\r
+\r
+ (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));\r
+ (*last_cmd)->cmd.runtest->num_cycles = num_cycles;\r
+ (*last_cmd)->cmd.runtest->end_state = state;\r
+ \r
+ if (state != -1)\r
+ cmd_queue_end_state = state;\r
+\r
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
+ \r
+ if (cmd_queue_end_state == TAP_TLR)\r
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
+ \r
+ cmd_queue_cur_state = cmd_queue_end_state;\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_add_reset(int req_trst, int req_srst)\r
+{\r
+ int trst_with_tms = 0;\r
+ \r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ \r
+ if (req_trst == -1)\r
+ req_trst = jtag_trst;\r
+ \r
+ if (req_srst == -1)\r
+ req_srst = jtag_srst;\r
+\r
+ /* Make sure that jtag_reset_config allows the requested reset */\r
+ /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */\r
+ if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))\r
+ return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;\r
+ \r
+ /* if TRST pulls SRST, we reset with TAP T-L-R */\r
+ if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))\r
+ {\r
+ req_trst = 0;\r
+ trst_with_tms = 1;\r
+ }\r
+ \r
+ if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))\r
+ {\r
+ ERROR("requested nSRST assertion, but the current configuration doesn't support this");\r
+ return ERROR_JTAG_RESET_CANT_SRST;\r
+ }\r
+ \r
+ if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))\r
+ {\r
+ req_trst = 0;\r
+ trst_with_tms = 1;\r
+ }\r
+ \r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ (*last_cmd)->next = NULL;\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->type = JTAG_RESET;\r
+\r
+ (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));\r
+ (*last_cmd)->cmd.reset->trst = req_trst;\r
+ (*last_cmd)->cmd.reset->srst = req_srst;\r
+\r
+ jtag_trst = req_trst;\r
+ jtag_srst = req_srst;\r
+\r
+ if (jtag_srst)\r
+ {\r
+ jtag_call_event_callbacks(JTAG_SRST_ASSERTED);\r
+ }\r
+ else\r
+ {\r
+ jtag_call_event_callbacks(JTAG_SRST_RELEASED);\r
+ if (jtag_nsrst_delay)\r
+ jtag_add_sleep(jtag_nsrst_delay * 1000);\r
+ }\r
+ \r
+ if (trst_with_tms)\r
+ {\r
+ last_cmd = &((*last_cmd)->next);\r
+ \r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ (*last_cmd)->next = NULL;\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->type = JTAG_STATEMOVE;\r
+\r
+ (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));\r
+ (*last_cmd)->cmd.statemove->end_state = TAP_TLR;\r
+ \r
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
+ cmd_queue_cur_state = TAP_TLR;\r
+ cmd_queue_end_state = TAP_TLR;\r
+ \r
+ return ERROR_OK;\r
+ }\r
+ else\r
+ {\r
+ if (jtag_trst)\r
+ {\r
+ /* we just asserted nTRST, so we're now in Test-Logic-Reset,\r
+ * and inform possible listeners about this\r
+ */\r
+ cmd_queue_cur_state = TAP_TLR;\r
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
+ }\r
+ else\r
+ {\r
+ /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,\r
+ * but we might want to add a delay to give the TAP time to settle\r
+ */\r
+ if (jtag_ntrst_delay)\r
+ jtag_add_sleep(jtag_ntrst_delay * 1000);\r
+ }\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_add_end_state(enum tap_state state)\r
+{\r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ \r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ (*last_cmd)->next = NULL;\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->type = JTAG_END_STATE;\r
+\r
+ (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t));\r
+ (*last_cmd)->cmd.end_state->end_state = state;\r
+\r
+ if (state != -1)\r
+ cmd_queue_end_state = state;\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_add_sleep(u32 us)\r
+{\r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ \r
+ /* allocate memory for a new list member */\r
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
+ (*last_cmd)->next = NULL;\r
+ last_comand_pointer = &((*last_cmd)->next);\r
+ (*last_cmd)->type = JTAG_SLEEP;\r
+\r
+ (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));\r
+ (*last_cmd)->cmd.sleep->us = us;\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_scan_size(scan_command_t *cmd)\r
+{\r
+ int bit_count = 0;\r
+ int i;\r
+\r
+ /* count bits in scan command */\r
+ for (i = 0; i < cmd->num_fields; i++)\r
+ {\r
+ bit_count += cmd->fields[i].num_bits;\r
+ }\r
+\r
+ return bit_count;\r
+}\r
+\r
+int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)\r
+{\r
+ int bit_count = 0;\r
+ int i;\r
+ \r
+ bit_count = jtag_scan_size(cmd);\r
+ *buffer = malloc(CEIL(bit_count, 8));\r
+ \r
+ bit_count = 0;\r
+\r
+ for (i = 0; i < cmd->num_fields; i++)\r
+ {\r
+ if (cmd->fields[i].out_value)\r
+ {\r
+#ifdef _DEBUG_JTAG_IO_\r
+ char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);\r
+#endif\r
+ buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);\r
+#ifdef _DEBUG_JTAG_IO_\r
+ DEBUG("fields[%i].out_value: 0x%s", i, char_buf);\r
+ free(char_buf);\r
+#endif\r
+ }\r
+ \r
+ bit_count += cmd->fields[i].num_bits;\r
+ }\r
+\r
+ return bit_count;\r
+\r
+}\r
+\r
+int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)\r
+{\r
+ int i;\r
+ int bit_count = 0;\r
+ int retval;\r
+ \r
+ /* we return ERROR_OK, unless a check fails, or a handler reports a problem */\r
+ retval = ERROR_OK;\r
+ \r
+ for (i = 0; i < cmd->num_fields; i++)\r
+ {\r
+ /* if neither in_value nor in_handler\r
+ * are specified we don't have to examine this field\r
+ */\r
+ if (cmd->fields[i].in_value || cmd->fields[i].in_handler)\r
+ {\r
+ int num_bits = cmd->fields[i].num_bits;\r
+ u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);\r
+ \r
+#ifdef _DEBUG_JTAG_IO_\r
+ char *char_buf;\r
+\r
+ char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);\r
+ DEBUG("fields[%i].in_value: 0x%s", i, char_buf);\r
+ free(char_buf);\r
+#endif\r
+ \r
+ if (cmd->fields[i].in_value)\r
+ {\r
+ buf_cpy(captured, cmd->fields[i].in_value, num_bits);\r
+ \r
+ if (cmd->fields[i].in_handler)\r
+ {\r
+ if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)\r
+ {\r
+ WARNING("in_handler reported a failed check");\r
+ retval = ERROR_JTAG_QUEUE_FAILED;\r
+ }\r
+ }\r
+ }\r
+ \r
+ /* no in_value specified, but a handler takes care of the scanned data */\r
+ if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))\r
+ {\r
+ if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)\r
+ {\r
+ /* We're going to call the error:handler later, but if the in_handler\r
+ * reported an error we report this failure upstream\r
+ */\r
+ WARNING("in_handler reported a failed check");\r
+ retval = ERROR_JTAG_QUEUE_FAILED;\r
+ }\r
+ }\r
+\r
+ free(captured);\r
+ }\r
+ bit_count += cmd->fields[i].num_bits;\r
+ }\r
+\r
+ return retval;\r
+}\r
+\r
+int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)\r
+{\r
+ int retval = ERROR_OK;\r
+ int num_bits = field->num_bits;\r
+ \r
+ int compare_failed = 0;\r
+ \r
+ if (field->in_check_mask)\r
+ compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);\r
+ else\r
+ compare_failed = buf_cmp(captured, field->in_check_value, num_bits);\r
+ \r
+ if (compare_failed)\r
+ {\r
+ /* An error handler could have caught the failing check\r
+ * only report a problem when there wasn't a handler, or if the handler\r
+ * acknowledged the error\r
+ */ \r
+ if (compare_failed)\r
+ {\r
+ char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);\r
+ char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);\r
+\r
+ if (field->in_check_mask)\r
+ {\r
+ char *in_check_mask_char;\r
+ in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);\r
+ WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);\r
+ free(in_check_mask_char);\r
+ }\r
+ else\r
+ {\r
+ WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);\r
+ }\r
+\r
+ free(captured_char);\r
+ free(in_check_value_char);\r
+ \r
+ retval = ERROR_JTAG_QUEUE_FAILED;\r
+ }\r
+ \r
+ }\r
+ return retval;\r
+}\r
+\r
+/* \r
+ set up checking of this field using the in_handler. The values passed in must be valid until\r
+ after jtag_execute() has completed.\r
+ */\r
+void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)\r
+{\r
+ if (value)\r
+ field->in_handler = jtag_check_value;\r
+ else\r
+ field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */\r
+ field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */ \r
+ field->in_check_value = value;\r
+ field->in_check_mask = mask;\r
+}\r
+\r
+enum scan_type jtag_scan_type(scan_command_t *cmd)\r
+{\r
+ int i;\r
+ int type = 0;\r
+ \r
+ for (i = 0; i < cmd->num_fields; i++)\r
+ {\r
+ if (cmd->fields[i].in_value || cmd->fields[i].in_handler)\r
+ type |= SCAN_IN;\r
+ if (cmd->fields[i].out_value)\r
+ type |= SCAN_OUT;\r
+ }\r
+\r
+ return type;\r
+}\r
+\r
+int jtag_execute_queue(void)\r
+{\r
+ int retval;\r
+\r
+ retval = jtag->execute_queue();\r
+ \r
+ cmd_queue_free();\r
+\r
+ jtag_command_queue = NULL;\r
+ last_comand_pointer = &jtag_command_queue;\r
+\r
+ return retval;\r
+}\r
+\r
+int jtag_reset_callback(enum jtag_event event, void *priv)\r
+{\r
+ jtag_device_t *device = priv;\r
+\r
+ DEBUG("-");\r
+ \r
+ if (event == JTAG_TRST_ASSERTED)\r
+ {\r
+ buf_set_ones(device->cur_instr, device->ir_length);\r
+ device->bypass = 1;\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+void jtag_sleep(u32 us)\r
+{\r
+ usleep(us);\r
+}\r
+\r
+/* Try to examine chain layout according to IEEE 1149.1 §12\r
+ */\r
+int jtag_examine_chain()\r
+{\r
+ jtag_device_t *device = jtag_devices;\r
+ scan_field_t field;\r
+ u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];\r
+ int i;\r
+ int bit_count;\r
+ int device_count = 0;\r
+ u8 zero_check = 0x0;\r
+ u8 one_check = 0xff;\r
+ \r
+ field.device = 0;\r
+ field.num_bits = sizeof(idcode_buffer) * 8;\r
+ field.out_value = idcode_buffer;\r
+ field.out_mask = NULL;\r
+ field.in_value = idcode_buffer;\r
+ field.in_check_value = NULL;\r
+ field.in_check_mask = NULL;\r
+ field.in_handler = NULL;\r
+ field.in_handler_priv = NULL;\r
+ \r
+ for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)\r
+ {\r
+ buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);\r
+ }\r
+ \r
+ jtag_add_plain_dr_scan(1, &field, TAP_TLR);\r
+ jtag_execute_queue();\r
+ \r
+ for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)\r
+ {\r
+ zero_check |= idcode_buffer[i];\r
+ one_check &= idcode_buffer[i];\r
+ }\r
+ \r
+ /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */\r
+ if ((zero_check == 0x00) || (one_check == 0xff))\r
+ {\r
+ ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");\r
+ return ERROR_JTAG_INIT_FAILED;\r
+ }\r
+ \r
+ for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)\r
+ {\r
+ u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);\r
+ if ((idcode & 1) == 0)\r
+ {\r
+ /* LSB must not be 0, this indicates a device in bypass */\r
+ device_count++;\r
+ \r
+ bit_count += 1;\r
+ }\r
+ else\r
+ {\r
+ u32 manufacturer;\r
+ u32 part;\r
+ u32 version;\r
+ \r
+ if (idcode == 0x000000FF)\r
+ {\r
+ /* End of chain (invalid manufacturer ID) */\r
+ break;\r
+ }\r
+ \r
+ if (device)\r
+ {\r
+ device->idcode = idcode;\r
+ device = device->next;\r
+ }\r
+ device_count++;\r
+ \r
+ manufacturer = (idcode & 0xffe) >> 1;\r
+ part = (idcode & 0xffff000) >> 12;\r
+ version = (idcode & 0xf0000000) >> 28;\r
+\r
+ INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)", \r
+ idcode, manufacturer, part, version);\r
+ \r
+ bit_count += 32;\r
+ }\r
+ }\r
+ \r
+ /* see if number of discovered devices matches configuration */\r
+ if (device_count != jtag_num_devices)\r
+ {\r
+ ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)", \r
+ device_count, jtag_num_devices);\r
+ ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");\r
+ return ERROR_JTAG_INIT_FAILED;\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_validate_chain()\r
+{\r
+ jtag_device_t *device = jtag_devices;\r
+ int total_ir_length = 0;\r
+ u8 *ir_test = NULL;\r
+ scan_field_t field;\r
+ int chain_pos = 0;\r
+ \r
+ while (device)\r
+ {\r
+ total_ir_length += device->ir_length;\r
+ device = device->next;\r
+ }\r
+ \r
+ total_ir_length += 2;\r
+ ir_test = malloc(CEIL(total_ir_length, 8));\r
+ buf_set_ones(ir_test, total_ir_length);\r
+ \r
+ field.device = 0;\r
+ field.num_bits = total_ir_length;\r
+ field.out_value = ir_test;\r
+ field.out_mask = NULL;\r
+ field.in_value = ir_test;\r
+ field.in_check_value = NULL;\r
+ field.in_check_mask = NULL;\r
+ field.in_handler = NULL;\r
+ field.in_handler_priv = NULL;\r
+ \r
+ jtag_add_plain_ir_scan(1, &field, TAP_TLR);\r
+ jtag_execute_queue();\r
+ \r
+ device = jtag_devices;\r
+ while (device)\r
+ {\r
+ if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)\r
+ {\r
+ char *cbuf = buf_to_str(ir_test, total_ir_length, 16);\r
+ ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);\r
+ free(cbuf);\r
+ free(ir_test);\r
+ return ERROR_JTAG_INIT_FAILED;\r
+ }\r
+ chain_pos += device->ir_length;\r
+ device = device->next;\r
+ }\r
+ \r
+ if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)\r
+ {\r
+ char *cbuf = buf_to_str(ir_test, total_ir_length, 16);\r
+ ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);\r
+ free(cbuf);\r
+ free(ir_test);\r
+ return ERROR_JTAG_INIT_FAILED;\r
+ }\r
+ \r
+ free(ir_test);\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_register_commands(struct command_context_s *cmd_ctx)\r
+{\r
+ register_command(cmd_ctx, NULL, "interface", handle_interface_command,\r
+ COMMAND_CONFIG, NULL);\r
+ register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,\r
+ COMMAND_ANY, "set jtag speed (if supported) <speed>");\r
+ register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,\r
+ COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");\r
+ register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,\r
+ COMMAND_CONFIG, NULL);\r
+ register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,\r
+ COMMAND_CONFIG, NULL);\r
+ register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,\r
+ COMMAND_CONFIG, NULL);\r
+ \r
+ register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,\r
+ COMMAND_EXEC, "print current scan chain configuration");\r
+\r
+ register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,\r
+ COMMAND_EXEC, "finish JTAG operations in <tap_state>");\r
+ register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,\r
+ COMMAND_EXEC, "toggle reset lines <trst> <srst>");\r
+ register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,\r
+ COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");\r
+ register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,\r
+ COMMAND_EXEC, "move to current endstate or [tap_state]");\r
+ register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,\r
+ COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");\r
+ register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,\r
+ COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");\r
+\r
+ register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,\r
+ COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");\r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_init(struct command_context_s *cmd_ctx)\r
+{\r
+ int i, validate_tries = 0;\r
+ \r
+ DEBUG("-");\r
+\r
+ if (jtag_speed == -1)\r
+ jtag_speed = 0;\r
+ \r
+ if (jtag_interface && (jtag_interface[0] != 0))\r
+ /* configuration var 'jtag_interface' is set, and not empty */\r
+ for (i = 0; jtag_interfaces[i]; i++)\r
+ {\r
+ if (strcmp(jtag_interface, jtag_interfaces[i]->name) == 0)\r
+ {\r
+ jtag_device_t *device;\r
+ device = jtag_devices;\r
+ \r
+ if (jtag_interfaces[i]->init() != ERROR_OK)\r
+ return ERROR_JTAG_INIT_FAILED;\r
+ jtag = jtag_interfaces[i];\r
+\r
+ jtag_ir_scan_size = 0;\r
+ jtag_num_devices = 0;\r
+ while (device != NULL)\r
+ {\r
+ jtag_ir_scan_size += device->ir_length;\r
+ jtag_num_devices++;\r
+ device = device->next;\r
+ }\r
+ \r
+ jtag_add_statemove(TAP_TLR);\r
+ jtag_execute_queue();\r
+\r
+ /* examine chain first, as this could discover the real chain layout */\r
+ if (jtag_examine_chain() != ERROR_OK)\r
+ {\r
+ ERROR("trying to validate configured JTAG chain anyway...");\r
+ }\r
+ \r
+ while (jtag_validate_chain() != ERROR_OK)\r
+ {\r
+ validate_tries++;\r
+ if (validate_tries > 5)\r
+ {\r
+ ERROR("Could not validate JTAG chain, exit");\r
+ jtag = NULL;\r
+ return ERROR_JTAG_INVALID_INTERFACE;\r
+ }\r
+ usleep(10000);\r
+ }\r
+\r
+ return ERROR_OK;\r
+ }\r
+ }\r
+ \r
+ /* no valid interface was found (i.e. the configuration option,\r
+ * didn't match one of the compiled-in interfaces\r
+ */\r
+ ERROR("No valid jtag interface found (%s)", jtag_interface);\r
+ ERROR("compiled-in jtag interfaces:");\r
+ for (i = 0; jtag_interfaces[i]; i++)\r
+ {\r
+ ERROR("%i: %s", i, jtag_interfaces[i]->name);\r
+ }\r
+ \r
+ jtag = NULL;\r
+ return ERROR_JTAG_INVALID_INTERFACE;\r
+}\r
+\r
+int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ int i;\r
+ \r
+ /* only if the configuration var isn't overwritten from cmdline */\r
+ if (!jtag_interface)\r
+ {\r
+ if (args[0] && (args[0][0] != 0))\r
+ {\r
+ for (i=0; jtag_interfaces[i]; i++)\r
+ {\r
+ if (strcmp(args[0], jtag_interfaces[i]->name) == 0)\r
+ {\r
+ if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)\r
+ exit(-1);\r
+ \r
+ jtag_interface = jtag_interfaces[i]->name;\r
+ \r
+ return ERROR_OK;\r
+ }\r
+ }\r
+ }\r
+ \r
+ /* remember the requested interface name, so we can complain about it later */\r
+ jtag_interface = strdup(args[0]);\r
+ DEBUG("'interface' command didn't specify a valid interface");\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ jtag_device_t **last_device_p = &jtag_devices;\r
+\r
+ if (*last_device_p)\r
+ {\r
+ while ((*last_device_p)->next)\r
+ last_device_p = &((*last_device_p)->next);\r
+ last_device_p = &((*last_device_p)->next);\r
+ }\r
+\r
+ if (argc < 3)\r
+ return ERROR_OK;\r
+\r
+ *last_device_p = malloc(sizeof(jtag_device_t));\r
+ (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);\r
+\r
+ (*last_device_p)->expected = malloc((*last_device_p)->ir_length);\r
+ buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));\r
+ (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);\r
+ buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));\r
+\r
+ (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);\r
+ (*last_device_p)->bypass = 1;\r
+ buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);\r
+ \r
+ (*last_device_p)->next = NULL;\r
+ \r
+ jtag_register_event_callback(jtag_reset_callback, (*last_device_p));\r
+ \r
+ jtag_num_devices++;\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ jtag_device_t *device = jtag_devices;\r
+ int device_count = 0;\r
+ \r
+ while (device)\r
+ {\r
+ u32 expected, expected_mask, cur_instr;\r
+ expected = buf_get_u32(device->expected, 0, device->ir_length);\r
+ expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);\r
+ cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);\r
+ command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);\r
+ device = device->next;\r
+ device_count++;\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ if (argc >= 1)\r
+ {\r
+ if (strcmp(args[0], "none") == 0)\r
+ jtag_reset_config = RESET_NONE;\r
+ else if (strcmp(args[0], "trst_only") == 0)\r
+ jtag_reset_config = RESET_HAS_TRST;\r
+ else if (strcmp(args[0], "srst_only") == 0)\r
+ jtag_reset_config = RESET_HAS_SRST;\r
+ else if (strcmp(args[0], "trst_and_srst") == 0)\r
+ jtag_reset_config = RESET_TRST_AND_SRST;\r
+ else\r
+ {\r
+ ERROR("invalid reset_config argument, defaulting to none");\r
+ jtag_reset_config = RESET_NONE;\r
+ return ERROR_INVALID_ARGUMENTS;\r
+ }\r
+ }\r
+ \r
+ if (argc >= 2)\r
+ {\r
+ if (strcmp(args[1], "srst_pulls_trst") == 0)\r
+ jtag_reset_config |= RESET_SRST_PULLS_TRST;\r
+ else if (strcmp(args[1], "trst_pulls_srst") == 0)\r
+ jtag_reset_config |= RESET_TRST_PULLS_SRST;\r
+ else if (strcmp(args[1], "combined") == 0)\r
+ jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;\r
+ else if (strcmp(args[1], "separate") == 0)\r
+ jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);\r
+ else\r
+ {\r
+ ERROR("invalid reset_config argument, defaulting to none");\r
+ jtag_reset_config = RESET_NONE;\r
+ return ERROR_INVALID_ARGUMENTS;\r
+ }\r
+ }\r
+ \r
+ if (argc >= 3)\r
+ {\r
+ if (strcmp(args[2], "trst_open_drain") == 0)\r
+ jtag_reset_config |= RESET_TRST_OPEN_DRAIN;\r
+ else if (strcmp(args[2], "trst_push_pull") == 0)\r
+ jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;\r
+ else\r
+ {\r
+ ERROR("invalid reset_config argument, defaulting to none");\r
+ jtag_reset_config = RESET_NONE;\r
+ return ERROR_INVALID_ARGUMENTS;\r
+ }\r
+ }\r
+\r
+ if (argc >= 4)\r
+ {\r
+ if (strcmp(args[3], "srst_push_pull") == 0)\r
+ jtag_reset_config |= RESET_SRST_PUSH_PULL;\r
+ else if (strcmp(args[3], "srst_open_drain") == 0)\r
+ jtag_reset_config &= ~RESET_SRST_PUSH_PULL;\r
+ else\r
+ {\r
+ ERROR("invalid reset_config argument, defaulting to none");\r
+ jtag_reset_config = RESET_NONE;\r
+ return ERROR_INVALID_ARGUMENTS;\r
+ }\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ if (argc < 1)\r
+ {\r
+ ERROR("jtag_nsrst_delay <ms> command takes one required argument");\r
+ exit(-1);\r
+ }\r
+ else\r
+ {\r
+ jtag_nsrst_delay = strtoul(args[0], NULL, 0);\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ if (argc < 1)\r
+ {\r
+ ERROR("jtag_ntrst_delay <ms> command takes one required argument");\r
+ exit(-1);\r
+ }\r
+ else\r
+ {\r
+ jtag_ntrst_delay = strtoul(args[0], NULL, 0);\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ if (argc == 0)\r
+ command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);\r
+\r
+ if (argc > 0)\r
+ {\r
+ /* this command can be called during CONFIG, \r
+ * in which case jtag isn't initialized */\r
+ if (jtag)\r
+ jtag->speed(strtoul(args[0], NULL, 0));\r
+ else\r
+ jtag_speed = strtoul(args[0], NULL, 0);\r
+ }\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ enum tap_state state;\r
+\r
+ if (argc < 1)\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+ else\r
+ {\r
+ for (state = 0; state < 16; state++)\r
+ {\r
+ if (strcmp(args[0], tap_state_strings[state]) == 0)\r
+ {\r
+ jtag_add_end_state(state);\r
+ jtag_execute_queue();\r
+ }\r
+ }\r
+ }\r
+ command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ int trst = -1;\r
+ int srst = -1;\r
+ int retval;\r
+ \r
+ if (argc < 1)\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+\r
+ }\r
+\r
+ if (args[0][0] == '1')\r
+ trst = 1;\r
+ else if (args[0][0] == '0')\r
+ trst = 0;\r
+ else\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+\r
+ if (args[1][0] == '1')\r
+ srst = 1;\r
+ else if (args[1][0] == '0')\r
+ srst = 0;\r
+ else\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+\r
+ if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK)\r
+ {\r
+ switch (retval)\r
+ {\r
+ case ERROR_JTAG_RESET_WOULD_ASSERT_TRST:\r
+ command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]);\r
+ break;\r
+ case ERROR_JTAG_RESET_CANT_SRST:\r
+ command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it");\r
+ break;\r
+ default:\r
+ command_print(cmd_ctx, "unknown error");\r
+ }\r
+ }\r
+ jtag_execute_queue();\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ if (argc < 1)\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+\r
+ jtag_add_runtest(strtol(args[0], NULL, 0), -1);\r
+ jtag_execute_queue();\r
+\r
+ return ERROR_OK;\r
+\r
+}\r
+\r
+int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ enum tap_state state;\r
+\r
+ state = -1;\r
+ if (argc == 1)\r
+ {\r
+ for (state = 0; state < 16; state++)\r
+ {\r
+ if (strcmp(args[0], tap_state_strings[state]) == 0)\r
+ {\r
+ break;\r
+ }\r
+ }\r
+ }\r
+\r
+ jtag_add_statemove(state);\r
+ jtag_execute_queue();\r
+\r
+ return ERROR_OK;\r
+\r
+}\r
+\r
+int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ int i;\r
+ scan_field_t *fields;\r
+ \r
+ if ((argc < 2) || (argc % 2))\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+\r
+ fields = malloc(sizeof(scan_field_t) * argc / 2);\r
+ \r
+ for (i = 0; i < argc / 2; i++)\r
+ {\r
+ int device = strtoul(args[i*2], NULL, 0);\r
+ int field_size = jtag_get_device(device)->ir_length;\r
+ fields[i].device = device;\r
+ fields[i].out_value = malloc(CEIL(field_size, 8));\r
+ buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));\r
+ fields[i].out_mask = NULL;\r
+ fields[i].in_value = NULL;\r
+ fields[i].in_check_mask = NULL;\r
+ fields[i].in_handler = NULL;\r
+ fields[i].in_handler_priv = NULL;\r
+ }\r
+\r
+ jtag_add_ir_scan(argc / 2, fields, -1);\r
+ jtag_execute_queue();\r
+\r
+ for (i = 0; i < argc / 2; i++)\r
+ free(fields[i].out_value);\r
+\r
+ free (fields);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ scan_field_t *fields;\r
+ int num_fields = 0;\r
+ int field_count = 0;\r
+ var_t *var;\r
+ int i, j;\r
+ \r
+ if ((argc < 2) || (argc % 2))\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+\r
+ for (i = 0; i < argc; i+=2)\r
+ {\r
+ var = get_var_by_namenum(args[i+1]);\r
+ if (var)\r
+ {\r
+ num_fields += var->num_fields;\r
+ }\r
+ else\r
+ {\r
+ command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);\r
+ return ERROR_OK;\r
+ }\r
+ }\r
+\r
+ fields = malloc(sizeof(scan_field_t) * num_fields);\r
+\r
+ for (i = 0; i < argc; i+=2)\r
+ {\r
+ var = get_var_by_namenum(args[i+1]);\r
+ \r
+ for (j = 0; j < var->num_fields; j++)\r
+ {\r
+ fields[field_count].device = strtol(args[i], NULL, 0);\r
+ fields[field_count].num_bits = var->fields[j].num_bits;\r
+ fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));\r
+ buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);\r
+ fields[field_count].out_mask = NULL;\r
+ fields[field_count].in_value = fields[field_count].out_value;\r
+ fields[field_count].in_check_mask = NULL;\r
+ fields[field_count].in_check_value = NULL;\r
+ fields[field_count].in_handler = field_le_to_host;\r
+ fields[field_count++].in_handler_priv = &(var->fields[j]);\r
+ }\r
+ }\r
+\r
+ jtag_add_dr_scan(num_fields, fields, -1);\r
+ jtag_execute_queue();\r
+ \r
+ for (i = 0; i < argc / 2; i++)\r
+ free(fields[i].out_value);\r
+\r
+ free(fields);\r
+\r
+ return ERROR_OK;\r
+}\r
+\r
+int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ if (argc == 1)\r
+ {\r
+ if (strcmp(args[0], "enable") == 0)\r
+ {\r
+ jtag_verify_capture_ir = 1;\r
+ }\r
+ else if (strcmp(args[0], "disable") == 0)\r
+ {\r
+ jtag_verify_capture_ir = 0;\r
+ } else\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+ } else if (argc != 0)\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\r
+ \r
+ command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");\r
+ \r
+ return ERROR_OK;\r
+}\r