1586 lines
42 KiB
C
1586 lines
42 KiB
C
/***************************************************************************
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* Copyright (C) 2005 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include "config.h"
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#include "jtag.h"
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#include "command.h"
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#include "log.h"
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#include "interpreter.h"
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#include "stdlib.h"
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#include "string.h"
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#include <unistd.h>
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char* tap_state_strings[16] =
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{
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"tlr",
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"sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
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"rti",
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"sis", "ci", "si", "e1i", "pi", "e2i", "ui"
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};
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typedef struct cmd_queue_page_s
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{
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void *address;
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size_t used;
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struct cmd_queue_page_s *next;
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} cmd_queue_page_t;
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#define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
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static cmd_queue_page_t *cmd_queue_pages = NULL;
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/* tap_move[i][j]: tap movement command to go from state i to state j
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* 0: Test-Logic-Reset
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* 1: Run-Test/Idle
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* 2: Shift-DR
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* 3: Pause-DR
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* 4: Shift-IR
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* 5: Pause-IR
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*/
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u8 tap_move[6][6] =
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{
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/* TLR RTI SD PD SI PI */
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{0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
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{0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
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{0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
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{0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
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{0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
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{0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
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};
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int tap_move_map[16] = {
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0, -1, -1, 2, -1, 3, -1, -1,
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1, -1, -1, 4, -1, 5, -1, -1
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};
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tap_transition_t tap_transitions[16] =
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{
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{TAP_TLR, TAP_RTI}, /* TLR */
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{TAP_SIS, TAP_CD}, /* SDS */
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{TAP_E1D, TAP_SD}, /* CD */
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{TAP_E1D, TAP_SD}, /* SD */
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{TAP_UD, TAP_PD}, /* E1D */
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{TAP_E2D, TAP_PD}, /* PD */
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{TAP_UD, TAP_SD}, /* E2D */
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{TAP_SDS, TAP_RTI}, /* UD */
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{TAP_SDS, TAP_RTI}, /* RTI */
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{TAP_TLR, TAP_CI}, /* SIS */
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{TAP_E1I, TAP_SI}, /* CI */
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{TAP_E1I, TAP_SI}, /* SI */
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{TAP_UI, TAP_PI}, /* E1I */
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{TAP_E2I, TAP_PI}, /* PI */
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{TAP_UI, TAP_SI}, /* E2I */
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{TAP_SDS, TAP_RTI} /* UI */
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};
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enum tap_state end_state = TAP_TLR;
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enum tap_state cur_state = TAP_TLR;
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int jtag_trst = 0;
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int jtag_srst = 0;
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jtag_command_t *jtag_command_queue = NULL;
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jtag_command_t **last_comand_pointer = &jtag_command_queue;
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jtag_device_t *jtag_devices = NULL;
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int jtag_num_devices = 0;
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int jtag_ir_scan_size = 0;
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enum reset_types jtag_reset_config = RESET_NONE;
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enum tap_state cmd_queue_end_state = TAP_TLR;
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enum tap_state cmd_queue_cur_state = TAP_TLR;
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int jtag_verify_capture_ir = 1;
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/* callbacks to inform high-level handlers about JTAG state changes */
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jtag_event_callback_t *jtag_event_callbacks;
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/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
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*/
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#if BUILD_PARPORT == 1
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extern jtag_interface_t parport_interface;
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#endif
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#if BUILD_FTDI2232 == 1
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extern jtag_interface_t ftdi2232_interface;
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#endif
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#if BUILD_FTD2XX == 1
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extern jtag_interface_t ftd2xx_interface;
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#endif
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#if BUILD_AMTJTAGACCEL == 1
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extern jtag_interface_t amt_jtagaccel_interface;
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#endif
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#if BUILD_EP93XX == 1
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extern jtag_interface_t ep93xx_interface;
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#endif
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jtag_interface_t *jtag_interfaces[] = {
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#if BUILD_PARPORT == 1
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&parport_interface,
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#endif
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#if BUILD_FTDI2232 == 1
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&ftdi2232_interface,
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#endif
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#if BUILD_FTD2XX == 1
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&ftd2xx_interface,
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#endif
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#if BUILD_AMTJTAGACCEL == 1
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&amt_jtagaccel_interface,
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#endif
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#if BUILD_EP93XX == 1
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&ep93xx_interface,
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#endif
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NULL,
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};
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jtag_interface_t *jtag = NULL;
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/* configuration */
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char* jtag_interface = NULL;
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int jtag_speed = -1;
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/* forward declarations */
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/* jtag commands */
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int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
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int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
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{
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jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
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if (callback == NULL)
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{
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return ERROR_INVALID_ARGUMENTS;
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}
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if (*callbacks_p)
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{
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while ((*callbacks_p)->next)
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callbacks_p = &((*callbacks_p)->next);
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callbacks_p = &((*callbacks_p)->next);
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}
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(*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
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(*callbacks_p)->callback = callback;
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(*callbacks_p)->priv = priv;
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(*callbacks_p)->next = NULL;
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return ERROR_OK;
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}
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int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
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{
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jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
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if (callback == NULL)
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{
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return ERROR_INVALID_ARGUMENTS;
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}
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while (*callbacks_p)
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{
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jtag_event_callback_t **next = &((*callbacks_p)->next);
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if ((*callbacks_p)->callback == callback)
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{
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free(*callbacks_p);
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*callbacks_p = *next;
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}
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callbacks_p = next;
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}
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return ERROR_OK;
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}
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int jtag_call_event_callbacks(enum jtag_event event)
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{
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jtag_event_callback_t *callback = jtag_event_callbacks;
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DEBUG("jtag event: %i", event);
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while (callback)
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{
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callback->callback(event, callback->priv);
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callback = callback->next;
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}
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return ERROR_OK;
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}
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/* returns a pointer to the pointer of the last command in queue
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* this may be a pointer to the root pointer (jtag_command_queue)
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* or to the next member of the last but one command
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*/
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jtag_command_t** jtag_get_last_command_p(void)
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{
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/* jtag_command_t *cmd = jtag_command_queue;
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if (cmd)
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while (cmd->next)
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cmd = cmd->next;
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else
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return &jtag_command_queue;
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return &cmd->next;*/
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return last_comand_pointer;
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}
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/* returns a pointer to the n-th device in the scan chain */
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jtag_device_t* jtag_get_device(int num)
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{
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jtag_device_t *device = jtag_devices;
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int i = 0;
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while (device)
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{
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if (num == i)
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return device;
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device = device->next;
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i++;
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}
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return NULL;
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}
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void* cmd_queue_alloc(size_t size)
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{
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cmd_queue_page_t **p_page = &cmd_queue_pages;
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int offset;
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if (*p_page)
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{
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while ((*p_page)->next)
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p_page = &((*p_page)->next);
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if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
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p_page = &((*p_page)->next);
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}
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if (!*p_page)
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{
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*p_page = malloc(sizeof(cmd_queue_page_t));
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(*p_page)->used = 0;
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(*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
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(*p_page)->next = NULL;
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}
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offset = (*p_page)->used;
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(*p_page)->used += size;
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return ((*p_page)->address) + offset;
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}
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void cmd_queue_free()
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{
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cmd_queue_page_t *page = cmd_queue_pages;
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while (page)
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{
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cmd_queue_page_t *last = page;
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free(page->address);
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page = page->next;
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free(last);
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}
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cmd_queue_pages = NULL;
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}
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int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
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{
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jtag_command_t **last_cmd;
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jtag_device_t *device;
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int i, j;
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int scan_size = 0;
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/* int changed = 0; */
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if (jtag_trst == 1)
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{
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WARNING("JTAG command queued, while TRST is low (TAP in reset)");
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return ERROR_JTAG_TRST_ASSERTED;
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}
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/*
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for (i=0; i<num_fields; i++)
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{
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device = jtag_get_device(fields[i].device);
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if (device)
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{
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if (buf_cmp(device->cur_instr, fields[i].out_value, device->ir_length))
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changed = 1;
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}
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else
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{
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ERROR("inexistant device specified for ir scan");
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return ERROR_INVALID_ARGUMENTS;
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}
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}
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if (!changed)
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return ERROR_OK;
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*/
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last_cmd = jtag_get_last_command_p();
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/* allocate memory for a new list member */
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*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
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(*last_cmd)->next = NULL;
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last_comand_pointer = &((*last_cmd)->next);
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(*last_cmd)->type = JTAG_SCAN;
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/* allocate memory for ir scan command */
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(*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
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(*last_cmd)->cmd.scan->ir_scan = 1;
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(*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
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(*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
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(*last_cmd)->cmd.scan->end_state = state;
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if (state != -1)
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cmd_queue_end_state = state;
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if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
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jtag_call_event_callbacks(JTAG_TRST_RELEASED);
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if (cmd_queue_end_state == TAP_TLR)
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jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
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cmd_queue_cur_state = cmd_queue_end_state;
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for (i=0; i < jtag_num_devices; i++)
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{
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int found = 0;
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device = jtag_get_device(i);
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scan_size = device->ir_length;
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(*last_cmd)->cmd.scan->fields[i].device = i;
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(*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
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(*last_cmd)->cmd.scan->fields[i].in_value = NULL;
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if (jtag_verify_capture_ir)
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{
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(*last_cmd)->cmd.scan->fields[i].in_check_value = buf_cpy(device->expected, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
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(*last_cmd)->cmd.scan->fields[i].in_check_mask = buf_cpy(device->expected_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
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}
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else
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{
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(*last_cmd)->cmd.scan->fields[i].in_check_value = NULL;
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(*last_cmd)->cmd.scan->fields[i].in_check_mask = NULL;
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}
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(*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
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(*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
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/* search the list */
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for (j=0; j < num_fields; j++)
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{
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if (i == fields[j].device)
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{
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found = 1;
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(*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
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(*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
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device->bypass = 0;
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break;
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}
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}
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if (!found)
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{
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/* if a device isn't listed, set it to BYPASS */
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(*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
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(*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
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device->bypass = 1;
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}
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/* update device information */
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buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
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}
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return ERROR_OK;
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}
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int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
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{
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jtag_command_t **last_cmd;
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int i;
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if (jtag_trst == 1)
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{
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WARNING("JTAG command queued, while TRST is low (TAP in reset)");
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return ERROR_JTAG_TRST_ASSERTED;
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}
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last_cmd = jtag_get_last_command_p();
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/* allocate memory for a new list member */
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*last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
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(*last_cmd)->next = NULL;
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last_comand_pointer = &((*last_cmd)->next);
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(*last_cmd)->type = JTAG_SCAN;
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/* allocate memory for ir scan command */
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(*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
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(*last_cmd)->cmd.scan->ir_scan = 1;
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(*last_cmd)->cmd.scan->num_fields = num_fields;
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(*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
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(*last_cmd)->cmd.scan->end_state = state;
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if (state != -1)
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cmd_queue_end_state = state;
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if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
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jtag_call_event_callbacks(JTAG_TRST_RELEASED);
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if (cmd_queue_end_state == TAP_TLR)
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jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
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cmd_queue_cur_state = cmd_queue_end_state;
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for (i = 0; i < num_fields; i++)
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{
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int num_bits = fields[i].num_bits;
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int num_bytes = CEIL(fields[i].num_bits, 8);
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(*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
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(*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
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(*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
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(*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
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(*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
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(*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 = NULL;
|
|
(*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
|
|
}
|
|
return ERROR_OK;
|
|
}
|
|
|
|
int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
|
|
{
|
|
int i, j;
|
|
int bypass_devices = 0;
|
|
int field_count = 0;
|
|
jtag_command_t **last_cmd = jtag_get_last_command_p();
|
|
jtag_device_t *device = jtag_devices;
|
|
int scan_size;
|
|
|
|
if (jtag_trst == 1)
|
|
{
|
|
WARNING("JTAG command queued, while TRST is low (TAP in reset)");
|
|
return ERROR_JTAG_TRST_ASSERTED;
|
|
}
|
|
|
|
/* count devices in bypass */
|
|
while (device)
|
|
{
|
|
if (device->bypass)
|
|
bypass_devices++;
|
|
device = device->next;
|
|
}
|
|
|
|
/* 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 dr 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 + bypass_devices;
|
|
(*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * 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 < jtag_num_devices; i++)
|
|
{
|
|
int found = 0;
|
|
(*last_cmd)->cmd.scan->fields[field_count].device = i;
|
|
|
|
for (j=0; j < num_fields; j++)
|
|
{
|
|
if (i == fields[j].device)
|
|
{
|
|
found = 1;
|
|
scan_size = fields[j].num_bits;
|
|
(*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
|
|
(*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
|
|
(*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_check_value = buf_cpy(fields[j].in_check_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_check_mask = buf_cpy(fields[j].in_check_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
|
|
(*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
|
|
}
|
|
}
|
|
if (!found)
|
|
{
|
|
/* if a device isn't listed, the BYPASS register should be selected */
|
|
if (!jtag_get_device(i)->bypass)
|
|
{
|
|
ERROR("BUG: no scan data for a device not in BYPASS");
|
|
exit(-1);
|
|
}
|
|
|
|
/* program the scan field to 1 bit length, and ignore it's value */
|
|
(*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
|
|
(*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
|
|
(*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
|
|
(*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
|
|
(*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
|
|
}
|
|
else
|
|
{
|
|
/* if a device is listed, the BYPASS register must not be selected */
|
|
if (jtag_get_device(i)->bypass)
|
|
{
|
|
ERROR("BUG: scan data for a device in BYPASS");
|
|
exit(-1);
|
|
}
|
|
}
|
|
}
|
|
return ERROR_OK;
|
|
}
|
|
|
|
int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
|
|
{
|
|
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))
|
|
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 (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)
|
|
{
|
|
cmd_queue_cur_state = TAP_TLR;
|
|
jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
|
|
}
|
|
}
|
|
|
|
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, "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_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;
|
|
}
|