-/***************************************************************************
- * Copyright (C) 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "replacements.h"
-
-#include "jtag.h"
-
-#include "command.h"
-#include "log.h"
-#include "interpreter.h"
-
-#include "stdlib.h"
-#include "string.h"
-#include <unistd.h>
-
-char* tap_state_strings[16] =
-{
- "tlr",
- "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
- "rti",
- "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
-};
-
-typedef struct cmd_queue_page_s
-{
- void *address;
- size_t used;
- struct cmd_queue_page_s *next;
-} cmd_queue_page_t;
-
-#define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
-static cmd_queue_page_t *cmd_queue_pages = NULL;
-
-/* tap_move[i][j]: tap movement command to go from state i to state j
- * 0: Test-Logic-Reset
- * 1: Run-Test/Idle
- * 2: Shift-DR
- * 3: Pause-DR
- * 4: Shift-IR
- * 5: Pause-IR
- *
- * SD->SD and SI->SI have to be caught in interface specific code
- */
-u8 tap_move[6][6] =
-{
-/* TLR RTI SD PD SI PI */
- {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
- {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
- {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
- {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
- {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
- {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
-};
-
-int tap_move_map[16] = {
- 0, -1, -1, 2, -1, 3, -1, -1,
- 1, -1, -1, 4, -1, 5, -1, -1
-};
-
-tap_transition_t tap_transitions[16] =
-{
- {TAP_TLR, TAP_RTI}, /* TLR */
- {TAP_SIS, TAP_CD}, /* SDS */
- {TAP_E1D, TAP_SD}, /* CD */
- {TAP_E1D, TAP_SD}, /* SD */
- {TAP_UD, TAP_PD}, /* E1D */
- {TAP_E2D, TAP_PD}, /* PD */
- {TAP_UD, TAP_SD}, /* E2D */
- {TAP_SDS, TAP_RTI}, /* UD */
- {TAP_SDS, TAP_RTI}, /* RTI */
- {TAP_TLR, TAP_CI}, /* SIS */
- {TAP_E1I, TAP_SI}, /* CI */
- {TAP_E1I, TAP_SI}, /* SI */
- {TAP_UI, TAP_PI}, /* E1I */
- {TAP_E2I, TAP_PI}, /* PI */
- {TAP_UI, TAP_SI}, /* E2I */
- {TAP_SDS, TAP_RTI} /* UI */
-};
-
-char* jtag_event_strings[] =
-{
- "SRST asserted",
- "TRST asserted",
- "SRST released",
- "TRST released"
-};
-
-enum tap_state end_state = TAP_TLR;
-enum tap_state cur_state = TAP_TLR;
-int jtag_trst = 0;
-int jtag_srst = 0;
-
-jtag_command_t *jtag_command_queue = NULL;
-jtag_command_t **last_comand_pointer = &jtag_command_queue;
-jtag_device_t *jtag_devices = NULL;
-int jtag_num_devices = 0;
-int jtag_ir_scan_size = 0;
-enum reset_types jtag_reset_config = RESET_NONE;
-enum tap_state cmd_queue_end_state = TAP_TLR;
-enum tap_state cmd_queue_cur_state = TAP_TLR;
-
-int jtag_verify_capture_ir = 1;
-
-/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
-int jtag_nsrst_delay = 0; /* default to no nSRST delay */
-int jtag_ntrst_delay = 0; /* default to no nTRST delay */
-
-/* maximum number of JTAG devices expected in the chain
- */
-#define JTAG_MAX_CHAIN_SIZE 20
-
-/* callbacks to inform high-level handlers about JTAG state changes */
-jtag_event_callback_t *jtag_event_callbacks;
-
-/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
- */
-#if BUILD_PARPORT == 1
- extern jtag_interface_t parport_interface;
-#endif
-
-#if BUILD_FT2232_FTD2XX == 1
- extern jtag_interface_t ft2232_interface;
-#endif
-
-#if BUILD_FT2232_LIBFTDI == 1
- extern jtag_interface_t ft2232_interface;
-#endif
-
-#if BUILD_AMTJTAGACCEL == 1
- extern jtag_interface_t amt_jtagaccel_interface;
-#endif
-
-#if BUILD_EP93XX == 1
- extern jtag_interface_t ep93xx_interface;
-#endif
-
-#if BUILD_AT91RM9200 == 1
- extern jtag_interface_t at91rm9200_interface;
-#endif
-
-#if BUILD_GW16012 == 1
- extern jtag_interface_t gw16012_interface;
-#endif
-
-#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
- extern jtag_interface_t presto_interface;
-#endif
-
-#if BUILD_USBPROG == 1
- extern jtag_interface_t usbprog_interface;
-#endif
-
-jtag_interface_t *jtag_interfaces[] = {
-#if BUILD_PARPORT == 1
- &parport_interface,
-#endif
-#if BUILD_FT2232_FTD2XX == 1
- &ft2232_interface,
-#endif
-#if BUILD_FT2232_LIBFTDI == 1
- &ft2232_interface,
-#endif
-#if BUILD_AMTJTAGACCEL == 1
- &amt_jtagaccel_interface,
-#endif
-#if BUILD_EP93XX == 1
- &ep93xx_interface,
-#endif
-#if BUILD_AT91RM9200 == 1
- &at91rm9200_interface,
-#endif
-#if BUILD_GW16012 == 1
- &gw16012_interface,
-#endif
-#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
- &presto_interface,
-#endif
-#if BUILD_USBPROG == 1
- &usbprog_interface,
-#endif
- NULL,
-};
-
-jtag_interface_t *jtag = NULL;
-
-/* configuration */
-jtag_interface_t *jtag_interface = NULL;
-int jtag_speed = 0;
-
-
-/* forward declarations */
-int jtag_add_statemove(enum tap_state endstate);
-int jtag_add_pathmove(int num_states, enum tap_state *path);
-int jtag_add_runtest(int num_cycles, enum tap_state endstate);
-int jtag_add_reset(int trst, int srst);
-int jtag_add_end_state(enum tap_state endstate);
-int jtag_add_sleep(u32 us);
-int jtag_execute_queue(void);
-int jtag_cancel_queue(void);
-
-/* jtag commands */
-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
-{
- jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
-
- if (callback == NULL)
- {
- return ERROR_INVALID_ARGUMENTS;
- }
-
- if (*callbacks_p)
- {
- while ((*callbacks_p)->next)
- callbacks_p = &((*callbacks_p)->next);
- callbacks_p = &((*callbacks_p)->next);
- }
-
- (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
- (*callbacks_p)->callback = callback;
- (*callbacks_p)->priv = priv;
- (*callbacks_p)->next = NULL;
-
- return ERROR_OK;
-}
-
-int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
-{
- jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
-
- if (callback == NULL)
- {
- return ERROR_INVALID_ARGUMENTS;
- }
-
- while (*callbacks_p)
- {
- jtag_event_callback_t **next = &((*callbacks_p)->next);
- if ((*callbacks_p)->callback == callback)
- {
- free(*callbacks_p);
- *callbacks_p = *next;
- }
- callbacks_p = next;
- }
-
- return ERROR_OK;
-}
-
-int jtag_call_event_callbacks(enum jtag_event event)
-{
- jtag_event_callback_t *callback = jtag_event_callbacks;
-
- DEBUG("jtag event: %s", jtag_event_strings[event]);
-
- while (callback)
- {
- callback->callback(event, callback->priv);
- callback = callback->next;
- }
-
- return ERROR_OK;
-}
-
-/* returns a pointer to the pointer of the last command in queue
- * this may be a pointer to the root pointer (jtag_command_queue)
- * or to the next member of the last but one command
- */
-jtag_command_t** jtag_get_last_command_p(void)
-{
-/* jtag_command_t *cmd = jtag_command_queue;
-
- if (cmd)
- while (cmd->next)
- cmd = cmd->next;
- else
- return &jtag_command_queue;
-
- return &cmd->next;*/
-
- return last_comand_pointer;
-}
-
-/* returns a pointer to the n-th device in the scan chain */
-jtag_device_t* jtag_get_device(int num)
-{
- jtag_device_t *device = jtag_devices;
- int i = 0;
-
- while (device)
- {
- if (num == i)
- return device;
- device = device->next;
- i++;
- }
-
- ERROR("jtag device number %d not defined", num);
- exit(-1);
-}
-
-void* cmd_queue_alloc(size_t size)
-{
- cmd_queue_page_t **p_page = &cmd_queue_pages;
- int offset;
-
- if (*p_page)
- {
- while ((*p_page)->next)
- p_page = &((*p_page)->next);
- if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
- p_page = &((*p_page)->next);
- }
-
- if (!*p_page)
- {
- *p_page = malloc(sizeof(cmd_queue_page_t));
- (*p_page)->used = 0;
- (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
- (*p_page)->next = NULL;
- }
-
- offset = (*p_page)->used;
- (*p_page)->used += size;
-
- u8 *t=(u8 *)((*p_page)->address);
- return t + offset;
-}
-
-void cmd_queue_free()
-{
- cmd_queue_page_t *page = cmd_queue_pages;
-
- while (page)
- {
- cmd_queue_page_t *last = page;
- free(page->address);
- page = page->next;
- free(last);
- }
-
- cmd_queue_pages = NULL;
-}
-
-int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{
- jtag_command_t **last_cmd;
- jtag_device_t *device;
- int i, j;
- int scan_size = 0;
-
- if (jtag_trst == 1)
- {
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
- }
-
- 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_SCAN;
-
- /* allocate memory for ir scan command */
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
- (*last_cmd)->cmd.scan->ir_scan = 1;
- (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_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;
- device = jtag_get_device(i);
- scan_size = device->ir_length;
- (*last_cmd)->cmd.scan->fields[i].device = i;
- (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
- (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
- (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */
-
- /* search the list */
- for (j = 0; j < num_fields; j++)
- {
- if (i == fields[j].device)
- {
- found = 1;
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
-
- if (jtag_verify_capture_ir)
- {
- if (fields[j].in_handler==NULL)
- {
- jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
- } else
- {
- (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
- (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
- }
- }
-
- device->bypass = 0;
- break;
- }
- }
-
- if (!found)
- {
- /* if a device isn't listed, set it to BYPASS */
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
- (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
- device->bypass = 1;
-
- }
-
- /* update device information */
- buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
- }
-
- return ERROR_OK;
-}
-
-int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{
- jtag_command_t **last_cmd;
- int i;
-
- if (jtag_trst == 1)
- {
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- return ERROR_JTAG_TRST_ASSERTED;
- }
-
- 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_SCAN;
-
- /* allocate memory for ir scan command */
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
- (*last_cmd)->cmd.scan->ir_scan = 1;
- (*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 = fields[i].in_check_value;
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
- (*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 = fields[j].in_check_value;
- (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
- (*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)
- {
- WARNING("scan data for a device in BYPASS");
- }
- }
- }
- 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 = fields[i].in_check_value;
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
- (*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;
- }
-
- /* 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_PATHMOVE;
-
- (*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];
-
- 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 * 1000);
- }
-
- 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 * 1000);
- }
- }
-
- 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)
- {
-#ifdef _DEBUG_JTAG_IO_
- char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
-#endif
- 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: 0x%s", i, char_buf);
- free(char_buf);
-#endif
- }
-
- 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;
-
- /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
- retval = ERROR_OK;
-
- for (i = 0; i < cmd->num_fields; i++)
- {
- /* if neither in_value nor in_handler
- * are specified we don't have to examine this field
- */
- if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
- {
- int num_bits = cmd->fields[i].num_bits;
- u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
-
-#ifdef _DEBUG_JTAG_IO_
- char *char_buf;
-
- char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
- DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
- free(char_buf);
-#endif
-
- if (cmd->fields[i].in_value)
- {
- buf_cpy(captured, cmd->fields[i].in_value, num_bits);
-
- if (cmd->fields[i].in_handler)
- {
- if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
- {
- WARNING("in_handler reported a failed check");
- retval = ERROR_JTAG_QUEUE_FAILED;
- }
- }
- }
-
- /* no in_value specified, but a handler takes care of the scanned data */
- if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
- {
- if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
- {
- /* We're going to call the error:handler later, but if the in_handler
- * reported an error we report this failure upstream
- */
- WARNING("in_handler reported a failed check");
- retval = ERROR_JTAG_QUEUE_FAILED;
- }
- }
-
- free(captured);
- }
- bit_count += cmd->fields[i].num_bits;
- }
-
- return retval;
-}
-
-int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
-{
- int retval = ERROR_OK;
- int num_bits = field->num_bits;
-
- int compare_failed = 0;
-
- if (field->in_check_mask)
- compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
- else
- compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
-
- if (compare_failed)
- {
- /* An error handler could have caught the failing check
- * only report a problem when there wasn't a handler, or if the handler
- * acknowledged the error
- */
- if (compare_failed)
- {
- char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
- char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
-
- if (field->in_check_mask)
- {
- char *in_check_mask_char;
- in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
- 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);
- free(in_check_mask_char);
- }
- else
- {
- WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
- }
-
- free(captured_char);
- free(in_check_value_char);
-
- retval = ERROR_JTAG_QUEUE_FAILED;
- }
-
- }
- return retval;
-}
-
-/*
- set up checking of this field using the in_handler. The values passed in must be valid until
- after jtag_execute() has completed.
- */
-void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
-{
- if (value)
- field->in_handler = jtag_check_value;
- else
- field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
- field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */
- field->in_check_value = value;
- field->in_check_mask = mask;
-}
-
-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_value || cmd->fields[i].in_handler)
- 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_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);
-}
-
-/* Try to examine chain layout according to IEEE 1149.1 §12
- */
-int jtag_examine_chain()
-{
- jtag_device_t *device = jtag_devices;
- scan_field_t field;
- u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
- int i;
- int bit_count;
- int device_count = 0;
- u8 zero_check = 0x0;
- u8 one_check = 0xff;
-
- field.device = 0;
- field.num_bits = sizeof(idcode_buffer) * 8;
- field.out_value = idcode_buffer;
- field.out_mask = NULL;
- field.in_value = idcode_buffer;
- field.in_check_value = NULL;
- field.in_check_mask = NULL;
- field.in_handler = NULL;
- field.in_handler_priv = NULL;
-
- for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
- {
- buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
- }
-
- jtag_add_plain_dr_scan(1, &field, TAP_TLR);
- jtag_execute_queue();
-
- for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
- {
- zero_check |= idcode_buffer[i];
- one_check &= idcode_buffer[i];
- }
-
- /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
- if ((zero_check == 0x00) || (one_check == 0xff))
- {
- ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
- {
- u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
- if ((idcode & 1) == 0)
- {
- /* LSB must not be 0, this indicates a device in bypass */
- device_count++;
-
- bit_count += 1;
- }
- else
- {
- u32 manufacturer;
- u32 part;
- u32 version;
-
- if (idcode == 0x000000FF)
- {
- /* End of chain (invalid manufacturer ID) */
- break;
- }
-
- if (device)
- {
- device->idcode = idcode;
- device = device->next;
- }
- device_count++;
-
- manufacturer = (idcode & 0xffe) >> 1;
- part = (idcode & 0xffff000) >> 12;
- version = (idcode & 0xf0000000) >> 28;
-
- INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
- idcode, manufacturer, part, version);
-
- bit_count += 32;
- }
- }
-
- /* see if number of discovered devices matches configuration */
- if (device_count != jtag_num_devices)
- {
- ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
- device_count, jtag_num_devices);
- ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- return ERROR_OK;
-}
-
-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)
- {
- char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
- ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
- free(cbuf);
- free(ir_test);
- return ERROR_JTAG_INIT_FAILED;
- }
- chain_pos += device->ir_length;
- device = device->next;
- }
-
- if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
- {
- char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
- ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
- free(cbuf);
- free(ir_test);
- return ERROR_JTAG_INIT_FAILED;
- }
-
- 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, "jtag_device <ir_length> <ir_expected> <ir_mask>");
- 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_interface_init(struct command_context_s *cmd_ctx)
-{
- if (!jtag_interface)
- {
- /* nothing was previously specified by "interface" command */
- ERROR("JTAG interface has to be specified, see \"interface\" command");
- return ERROR_JTAG_INVALID_INTERFACE;
- }
-
- if (jtag_interface->init() != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
-
- jtag = jtag_interface;
- return ERROR_OK;
-}
-
-int jtag_init(struct command_context_s *cmd_ctx)
-{
- int i, validate_tries = 0;
- jtag_device_t *device;
-
- DEBUG("-");
-
- if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
-
- device = jtag_devices;
- 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();
-
- /* examine chain first, as this could discover the real chain layout */
- if (jtag_examine_chain() != ERROR_OK)
- {
- ERROR("trying to validate configured JTAG chain anyway...");
- }
-
- while (jtag_validate_chain() != ERROR_OK)
- {
- validate_tries++;
- if (validate_tries > 5)
- {
- ERROR("Could not validate JTAG chain, exit");
- jtag = NULL;
- return ERROR_JTAG_INVALID_INTERFACE;
- }
- usleep(10000);
- }
-
- return ERROR_OK;
-}
-
-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- int i;
-
- /* check whether the interface is already configured */
- if (jtag_interface)
- {
- WARNING("Interface already configured, ignoring");
- return ERROR_OK;
- }
-
- /* interface name is a mandatory argument */
- if (argc < 1 || args[0][0] == '\0')
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- 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];
- 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)", args[0]);
- ERROR("compiled-in jtag interfaces:");
- for (i = 0; jtag_interfaces[i]; i++)
- {
- ERROR("%i: %s", i, jtag_interfaces[i]->name);
- }
-
- return ERROR_JTAG_INVALID_INTERFACE;
-}
-
-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, defaulting to none");
- jtag_reset_config = RESET_NONE;
- return ERROR_INVALID_ARGUMENTS;
- }
- }
-
- 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, defaulting to none");
- jtag_reset_config = RESET_NONE;
- return ERROR_INVALID_ARGUMENTS;
- }
- }
-
- 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, defaulting to none");
- jtag_reset_config = RESET_NONE;
- return ERROR_INVALID_ARGUMENTS;
- }
- }
-
- 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, defaulting to none");
- jtag_reset_config = RESET_NONE;
- return ERROR_INVALID_ARGUMENTS;
- }
- }
-
- 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)
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
- else
- {
- for (state = 0; state < 16; state++)
- {
- if (strcmp(args[0], tap_state_strings[state]) == 0)
- {
- jtag_add_end_state(state);
- jtag_execute_queue();
- }
- }
- }
- command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
-
- 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;
- int retval;
-
- if (argc < 2)
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- }
-
- if (args[0][0] == '1')
- trst = 1;
- else if (args[0][0] == '0')
- trst = 0;
- else
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (args[1][0] == '1')
- srst = 1;
- else if (args[1][0] == '0')
- srst = 0;
- else
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
-
- 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)
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- 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))
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- 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))
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- 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 == 1)
- {
- if (strcmp(args[0], "enable") == 0)
- {
- jtag_verify_capture_ir = 1;
- }
- else if (strcmp(args[0], "disable") == 0)
- {
- jtag_verify_capture_ir = 0;
- } else
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
- } else if (argc != 0)
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
-
- return ERROR_OK;
-}
+/***************************************************************************\r
+ * Copyright (C) 2005 by Dominic Rath *\r
+ * Dominic.Rath@gmx.de *\r
+ * *\r
+ * This program is free software; you can redistribute it and/or modify *\r
+ * it under the terms of the GNU General Public License as published by *\r
+ * the Free Software Foundation; either version 2 of the License, or *\r
+ * (at your option) any later version. *\r
+ * *\r
+ * This program is distributed in the hope that it will be useful, *\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *\r
+ * GNU General Public License for more details. *\r
+ * *\r
+ * You should have received a copy of the GNU General Public License *\r
+ * along with this program; if not, write to the *\r
+ * Free Software Foundation, Inc., *\r
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *\r
+ ***************************************************************************/\r
+#ifdef HAVE_CONFIG_H\r
+#include "config.h"\r
+#endif\r
+\r
+#include "replacements.h"\r
+\r
+#include "jtag.h"\r
+\r
+#include "command.h"\r
+#include "log.h"\r
+#include "interpreter.h"\r
+\r
+#include "stdlib.h"\r
+#include "string.h"\r
+#include <unistd.h>\r
+\r
+char* tap_state_strings[16] =\r
+{\r
+ "tlr", \r
+ "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",\r
+ "rti",\r
+ "sis", "ci", "si", "e1i", "pi", "e2i", "ui"\r
+};\r
+\r
+typedef struct cmd_queue_page_s\r
+{\r
+ void *address;\r
+ size_t used;\r
+ struct cmd_queue_page_s *next;\r
+} cmd_queue_page_t;\r
+\r
+#define CMD_QUEUE_PAGE_SIZE (1024 * 1024)\r
+static cmd_queue_page_t *cmd_queue_pages = NULL;\r
+\r
+/* tap_move[i][j]: tap movement command to go from state i to state j\r
+ * 0: Test-Logic-Reset\r
+ * 1: Run-Test/Idle\r
+ * 2: Shift-DR\r
+ * 3: Pause-DR\r
+ * 4: Shift-IR\r
+ * 5: Pause-IR\r
+ * \r
+ * SD->SD and SI->SI have to be caught in interface specific code\r
+ */\r
+u8 tap_move[6][6] =\r
+{\r
+/* TLR RTI SD PD SI PI */\r
+ {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */\r
+ {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */\r
+ {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */\r
+ {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */\r
+ {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */\r
+ {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */\r
+};\r
+\r
+int tap_move_map[16] = {\r
+ 0, -1, -1, 2, -1, 3, -1, -1,\r
+ 1, -1, -1, 4, -1, 5, -1, -1\r
+};\r
+\r
+tap_transition_t tap_transitions[16] =\r
+{\r
+ {TAP_TLR, TAP_RTI}, /* TLR */\r
+ {TAP_SIS, TAP_CD}, /* SDS */\r
+ {TAP_E1D, TAP_SD}, /* CD */\r
+ {TAP_E1D, TAP_SD}, /* SD */\r
+ {TAP_UD, TAP_PD}, /* E1D */\r
+ {TAP_E2D, TAP_PD}, /* PD */\r
+ {TAP_UD, TAP_SD}, /* E2D */\r
+ {TAP_SDS, TAP_RTI}, /* UD */\r
+ {TAP_SDS, TAP_RTI}, /* RTI */\r
+ {TAP_TLR, TAP_CI}, /* SIS */\r
+ {TAP_E1I, TAP_SI}, /* CI */\r
+ {TAP_E1I, TAP_SI}, /* SI */\r
+ {TAP_UI, TAP_PI}, /* E1I */\r
+ {TAP_E2I, TAP_PI}, /* PI */\r
+ {TAP_UI, TAP_SI}, /* E2I */\r
+ {TAP_SDS, TAP_RTI} /* UI */\r
+};\r
+\r
+char* jtag_event_strings[] =\r
+{\r
+ "SRST asserted",\r
+ "TRST asserted",\r
+ "SRST released",\r
+ "TRST released"\r
+};\r
+\r
+enum tap_state end_state = TAP_TLR;\r
+enum tap_state cur_state = TAP_TLR;\r
+int jtag_trst = 0;\r
+int jtag_srst = 0;\r
+\r
+jtag_command_t *jtag_command_queue = NULL;\r
+jtag_command_t **last_comand_pointer = &jtag_command_queue;\r
+jtag_device_t *jtag_devices = NULL;\r
+int jtag_num_devices = 0;\r
+int jtag_ir_scan_size = 0;\r
+enum reset_types jtag_reset_config = RESET_NONE;\r
+enum tap_state cmd_queue_end_state = TAP_TLR;\r
+enum tap_state cmd_queue_cur_state = TAP_TLR;\r
+\r
+int jtag_verify_capture_ir = 1;\r
+\r
+/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */\r
+int jtag_nsrst_delay = 0; /* default to no nSRST delay */\r
+int jtag_ntrst_delay = 0; /* default to no nTRST delay */ \r
+\r
+/* maximum number of JTAG devices expected in the chain\r
+ */\r
+#define JTAG_MAX_CHAIN_SIZE 20 \r
+\r
+/* callbacks to inform high-level handlers about JTAG state changes */\r
+jtag_event_callback_t *jtag_event_callbacks;\r
+\r
+/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)\r
+ */\r
+#if BUILD_PARPORT == 1\r
+ extern jtag_interface_t parport_interface;\r
+#endif\r
+\r
+#if BUILD_FT2232_FTD2XX == 1\r
+ extern jtag_interface_t ft2232_interface;\r
+#endif\r
+\r
+#if BUILD_FT2232_LIBFTDI == 1\r
+ extern jtag_interface_t ft2232_interface;\r
+#endif\r
+\r
+#if BUILD_AMTJTAGACCEL == 1\r
+ extern jtag_interface_t amt_jtagaccel_interface;\r
+#endif\r
+\r
+#if BUILD_EP93XX == 1\r
+ extern jtag_interface_t ep93xx_interface;\r
+#endif\r
+\r
+#if BUILD_AT91RM9200 == 1\r
+ extern jtag_interface_t at91rm9200_interface;\r
+#endif\r
+\r
+#if BUILD_GW16012 == 1\r
+ extern jtag_interface_t gw16012_interface;\r
+#endif\r
+\r
+#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1\r
+ extern jtag_interface_t presto_interface;\r
+#endif\r
+\r
+#if BUILD_USBPROG == 1\r
+ extern jtag_interface_t usbprog_interface;\r
+#endif\r
+\r
+jtag_interface_t *jtag_interfaces[] = {\r
+#if BUILD_PARPORT == 1\r
+ &parport_interface,\r
+#endif\r
+#if BUILD_FT2232_FTD2XX == 1\r
+ &ft2232_interface,\r
+#endif\r
+#if BUILD_FT2232_LIBFTDI == 1\r
+ &ft2232_interface,\r
+#endif\r
+#if BUILD_AMTJTAGACCEL == 1\r
+ &amt_jtagaccel_interface,\r
+#endif\r
+#if BUILD_EP93XX == 1\r
+ &ep93xx_interface,\r
+#endif\r
+#if BUILD_AT91RM9200 == 1\r
+ &at91rm9200_interface,\r
+#endif\r
+#if BUILD_GW16012 == 1\r
+ &gw16012_interface,\r
+#endif\r
+#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1\r
+ &presto_interface,\r
+#endif\r
+#if BUILD_USBPROG == 1\r
+ &usbprog_interface,\r
+#endif\r
+ NULL,\r
+};\r
+\r
+jtag_interface_t *jtag = NULL;\r
+\r
+/* configuration */\r
+jtag_interface_t *jtag_interface = NULL;\r
+int jtag_speed = 0;\r
+\r
+\r
+/* forward declarations */\r
+int jtag_add_statemove(enum tap_state endstate);\r
+int jtag_add_pathmove(int num_states, enum tap_state *path);\r
+int jtag_add_runtest(int num_cycles, enum tap_state endstate);\r
+int jtag_add_reset(int trst, int srst);\r
+int jtag_add_end_state(enum tap_state endstate);\r
+int jtag_add_sleep(u32 us);\r
+int jtag_execute_queue(void);\r
+int jtag_cancel_queue(void);\r
+\r
+/* jtag commands */\r
+int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+\r
+int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+\r
+int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+\r
+int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
+\r
+int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)\r
+{\r
+ jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;\r
+ \r
+ if (callback == NULL)\r
+ {\r
+ return ERROR_INVALID_ARGUMENTS;\r
+ }\r
+ \r
+ if (*callbacks_p)\r
+ {\r
+ while ((*callbacks_p)->next)\r
+ callbacks_p = &((*callbacks_p)->next);\r
+ callbacks_p = &((*callbacks_p)->next);\r
+ }\r
+ \r
+ (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));\r
+ (*callbacks_p)->callback = callback;\r
+ (*callbacks_p)->priv = priv;\r
+ (*callbacks_p)->next = NULL;\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))\r
+{\r
+ jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;\r
+ \r
+ if (callback == NULL)\r
+ {\r
+ return ERROR_INVALID_ARGUMENTS;\r
+ }\r
+ \r
+ while (*callbacks_p)\r
+ {\r
+ jtag_event_callback_t **next = &((*callbacks_p)->next);\r
+ if ((*callbacks_p)->callback == callback)\r
+ {\r
+ free(*callbacks_p);\r
+ *callbacks_p = *next;\r
+ }\r
+ callbacks_p = next;\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_call_event_callbacks(enum jtag_event event)\r
+{\r
+ jtag_event_callback_t *callback = jtag_event_callbacks;\r
+ \r
+ DEBUG("jtag event: %s", jtag_event_strings[event]);\r
+ \r
+ while (callback)\r
+ {\r
+ callback->callback(event, callback->priv);\r
+ callback = callback->next;\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+/* returns a pointer to the pointer of the last command in queue\r
+ * this may be a pointer to the root pointer (jtag_command_queue)\r
+ * or to the next member of the last but one command\r
+ */\r
+jtag_command_t** jtag_get_last_command_p(void)\r
+{\r
+/* jtag_command_t *cmd = jtag_command_queue;\r
+ \r
+ if (cmd)\r
+ while (cmd->next)\r
+ cmd = cmd->next;\r
+ else\r
+ return &jtag_command_queue;\r
+ \r
+ return &cmd->next;*/\r
+ \r
+ return last_comand_pointer;\r
+}\r
+\r
+/* returns a pointer to the n-th device in the scan chain */\r
+jtag_device_t* jtag_get_device(int num)\r
+{\r
+ jtag_device_t *device = jtag_devices;\r
+ int i = 0;\r
+\r
+ while (device)\r
+ {\r
+ if (num == i)\r
+ return device;\r
+ device = device->next;\r
+ i++;\r
+ }\r
+ \r
+ ERROR("jtag device number %d not defined", num);\r
+ exit(-1);\r
+}\r
+\r
+void* cmd_queue_alloc(size_t size)\r
+{\r
+ cmd_queue_page_t **p_page = &cmd_queue_pages;\r
+ int offset;\r
+\r
+ if (*p_page)\r
+ {\r
+ while ((*p_page)->next)\r
+ p_page = &((*p_page)->next);\r
+ if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)\r
+ p_page = &((*p_page)->next);\r
+ }\r
+\r
+ if (!*p_page)\r
+ {\r
+ *p_page = malloc(sizeof(cmd_queue_page_t));\r
+ (*p_page)->used = 0;\r
+ (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);\r
+ (*p_page)->next = NULL;\r
+ }\r
+\r
+ offset = (*p_page)->used;\r
+ (*p_page)->used += size;\r
+ \r
+ u8 *t=(u8 *)((*p_page)->address);\r
+ return t + offset;\r
+}\r
+\r
+void cmd_queue_free()\r
+{\r
+ cmd_queue_page_t *page = cmd_queue_pages;\r
+\r
+ while (page)\r
+ {\r
+ cmd_queue_page_t *last = page;\r
+ free(page->address);\r
+ page = page->next;\r
+ free(last);\r
+ }\r
+\r
+ cmd_queue_pages = NULL;\r
+}\r
+\r
+int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
+{\r
+ jtag_command_t **last_cmd;\r
+ jtag_device_t *device;\r
+ int i, j;\r
+ int scan_size = 0;\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
+ 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_SCAN;\r
+\r
+ /* allocate memory for ir scan command */\r
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
+ (*last_cmd)->cmd.scan->ir_scan = 1;\r
+ (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */\r
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * 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 < jtag_num_devices; i++)\r
+ {\r
+ int found = 0;\r
+ device = jtag_get_device(i);\r
+ scan_size = device->ir_length;\r
+ (*last_cmd)->cmd.scan->fields[i].device = i;\r
+ (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;\r
+ (*last_cmd)->cmd.scan->fields[i].in_value = NULL;\r
+ (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */\r
+\r
+ /* search the list */\r
+ for (j = 0; j < num_fields; j++)\r
+ {\r
+ if (i == fields[j].device)\r
+ {\r
+ found = 1;\r
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
+ (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
+ \r
+ if (jtag_verify_capture_ir)\r
+ {\r
+ if (fields[j].in_handler==NULL)\r
+ {\r
+ jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);\r
+ } else\r
+ {\r
+ (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;\r
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;\r
+ (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected; \r
+ (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;\r
+ }\r
+ }\r
+ \r
+ device->bypass = 0;\r
+ break;\r
+ }\r
+ }\r
+ \r
+ if (!found)\r
+ {\r
+ /* if a device isn't listed, set it to BYPASS */\r
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
+ (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;\r
+ device->bypass = 1;\r
+ \r
+ }\r
+ \r
+ /* update device information */\r
+ buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);\r
+ }\r
+ \r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
+{\r
+ jtag_command_t **last_cmd;\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
+ 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_SCAN;\r
+\r
+ /* allocate memory for ir scan command */\r
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
+ (*last_cmd)->cmd.scan->ir_scan = 1;\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 = NULL;\r
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;\r
+ }\r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
+{\r
+ int i, j;\r
+ int bypass_devices = 0;\r
+ int field_count = 0;\r
+ jtag_command_t **last_cmd = jtag_get_last_command_p();\r
+ jtag_device_t *device = jtag_devices;\r
+ int scan_size;\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
+ /* count devices in bypass */\r
+ while (device)\r
+ {\r
+ if (device->bypass)\r
+ bypass_devices++;\r
+ device = device->next;\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 dr 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 + bypass_devices;\r
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * 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 < jtag_num_devices; i++)\r
+ {\r
+ int found = 0;\r
+ (*last_cmd)->cmd.scan->fields[field_count].device = i;\r
+ \r
+ for (j = 0; j < num_fields; j++)\r
+ {\r
+ if (i == fields[j].device)\r
+ {\r
+ found = 1;\r
+ scan_size = fields[j].num_bits;\r
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;\r
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;\r
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;\r
+ }\r
+ }\r
+ if (!found)\r
+ {\r
+ /* if a device isn't listed, the BYPASS register should be selected */\r
+ if (!jtag_get_device(i)->bypass)\r
+ {\r
+ ERROR("BUG: no scan data for a device not in BYPASS");\r
+ exit(-1);\r
+ }\r
+ \r
+ /* program the scan field to 1 bit length, and ignore it's value */\r
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;\r
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;\r
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;\r
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;\r
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;\r
+ }\r
+ else\r
+ {\r
+ /* if a device is listed, the BYPASS register must not be selected */\r
+ if (jtag_get_device(i)->bypass)\r
+ {\r
+ WARNING("scan data for a device in BYPASS");\r
+ }\r
+ }\r
+ }\r
+ return ERROR_OK;\r
+}\r
+\r
+\r
+int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
+{\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_interface_init(struct command_context_s *cmd_ctx)\r
+{\r
+ if (!jtag_interface)\r
+ {\r
+ /* nothing was previously specified by "interface" command */\r
+ ERROR("JTAG interface has to be specified, see \"interface\" command");\r
+ return ERROR_JTAG_INVALID_INTERFACE;\r
+ }\r
+\r
+ if (jtag_interface->init() != ERROR_OK)\r
+ return ERROR_JTAG_INIT_FAILED;\r
+\r
+ jtag = jtag_interface;\r
+ return ERROR_OK;\r
+}\r
+\r
+int jtag_init(struct command_context_s *cmd_ctx)\r
+{\r
+ int i, validate_tries = 0;\r
+ jtag_device_t *device;\r
+\r
+ DEBUG("-");\r
+ \r
+ if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)\r
+ return ERROR_JTAG_INIT_FAILED;\r
+\r
+ device = jtag_devices;\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
+int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
+{\r
+ int i;\r
+\r
+ /* check whether the interface is already configured */\r
+ if (jtag_interface)\r
+ {\r
+ WARNING("Interface already configured, ignoring");\r
+ return ERROR_OK;\r
+ }\r
+\r
+ /* interface name is a mandatory argument */\r
+ if (argc < 1 || args[0][0] == '\0')\r
+ {\r
+ return ERROR_COMMAND_SYNTAX_ERROR;\r
+ }\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];\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)", args[0]);\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
+ return ERROR_JTAG_INVALID_INTERFACE;\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 < 2)\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 (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)\r
+ return ERROR_JTAG_INIT_FAILED;\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
Code Review / openocd.git / commitdiff