|
- /***************************************************************************
- * Copyright (C) 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * Copyright (C) 2007,2008 Øyvind Harboe *
- * oyvind.harboe@zylin.com *
- * *
- * 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 "stdlib.h"
- #include "string.h"
- #include <unistd.h>
-
- /* note that this is not marked as static as it must be available from outside jtag.c for those
- that implement the jtag_xxx() minidriver layer
- */
- int jtag_error=ERROR_OK;
-
-
- 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[] =
- {
- "JTAG controller reset (TLR or TRST)"
- };
-
- /* kludge!!!! these are just global variables that the
- * interface use internally. They really belong
- * inside the drivers, but we don't want to break
- * linking the drivers!!!!
- */
- 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;
-
- /* speed in kHz*/
- static int speed_khz = 0;
- /* flag if the kHz speed was defined */
- static int hasKHz = 0;
-
- /* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
- */
-
- #if BUILD_ECOSBOARD == 1
- extern jtag_interface_t zy1000_interface;
- #endif
-
- #if BUILD_PARPORT == 1
- extern jtag_interface_t parport_interface;
- #endif
-
- #if BUILD_DUMMY == 1
- extern jtag_interface_t dummy_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
-
- #if BUILD_JLINK == 1
- extern jtag_interface_t jlink_interface;
- #endif
-
- jtag_interface_t *jtag_interfaces[] = {
- #if BUILD_ECOSBOARD == 1
- &zy1000_interface,
- #endif
- #if BUILD_PARPORT == 1
- &parport_interface,
- #endif
- #if BUILD_DUMMY == 1
- &dummy_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
- #if BUILD_JLINK == 1
- &jlink_interface,
- #endif
- NULL,
- };
-
- jtag_interface_t *jtag = NULL;
-
- /* configuration */
- jtag_interface_t *jtag_interface = NULL;
- int jtag_speed = 0;
-
-
-
- /* forward declarations */
- void jtag_add_pathmove(int num_states, enum tap_state *path);
- void jtag_add_runtest(int num_cycles, enum tap_state endstate);
- void jtag_add_end_state(enum tap_state endstate);
- void jtag_add_sleep(u32 us);
- int jtag_execute_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_khz_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_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
- int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
-
- 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;
-
- LOG_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++;
- }
-
- LOG_ERROR("jtag device number %d not defined", num);
- return NULL;
- }
-
- void* cmd_queue_alloc(size_t size)
- {
- cmd_queue_page_t **p_page = &cmd_queue_pages;
- int offset;
- u8 *t;
-
- 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;
-
- t=(u8 *)((*p_page)->address);
- return t + offset;
- }
-
- void cmd_queue_free(void)
- {
- 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;
- }
-
- static void jtag_prelude1(void)
- {
- if (jtag_trst == 1)
- {
- LOG_WARNING("JTAG command queued, while TRST is low (TAP in reset)");
- jtag_error=ERROR_JTAG_TRST_ASSERTED;
- return;
- }
-
- if (cmd_queue_end_state == TAP_TLR)
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
- }
-
- static void jtag_prelude(enum tap_state state)
- {
- jtag_prelude1();
-
- if (state != -1)
- jtag_add_end_state(state);
-
- cmd_queue_cur_state = cmd_queue_end_state;
- }
-
- void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
- {
- int retval;
-
- jtag_prelude(state);
-
- retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
- if (retval!=ERROR_OK)
- jtag_error=retval;
- }
-
- int MINIDRIVER(interface_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;
-
-
- 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;
-
- for (i = 0; i < jtag_num_devices; i++)
- {
- int found = 0;
- device = jtag_get_device(i);
- if (device == NULL)
- {
- exit(-1);
- }
- 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;
- }
-
- void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
- {
- int retval;
-
- jtag_prelude(state);
-
- retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
- if (retval!=ERROR_OK)
- jtag_error=retval;
- }
-
- int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
- {
- int i;
- jtag_command_t **last_cmd;
-
- 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;
-
- 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;
- }
-
- void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
- {
- int retval;
-
- jtag_prelude(state);
-
- retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
- if (retval!=ERROR_OK)
- jtag_error=retval;
- }
-
- int MINIDRIVER(interface_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;
- int scan_size;
-
- jtag_command_t **last_cmd = jtag_get_last_command_p();
- jtag_device_t *device = jtag_devices;
-
- /* count devices in bypass */
- while (device)
- {
- if (device->bypass)
- bypass_devices++;
- device = device->next;
- }
- if (bypass_devices >= jtag_num_devices)
- {
- LOG_ERROR("all devices in bypass");
- return ERROR_JTAG_DEVICE_ERROR;
- }
-
- /* allocate memory for a new list member */
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
- 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;
-
- 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)
- {
- #ifdef _DEBUG_JTAG_IO_
- /* if a device isn't listed, the BYPASS register should be selected */
- if (!jtag_get_device(i)->bypass)
- {
- LOG_ERROR("BUG: no scan data for a device not in BYPASS");
- exit(-1);
- }
- #endif
- /* 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
- {
- #ifdef _DEBUG_JTAG_IO_
- /* if a device is listed, the BYPASS register must not be selected */
- if (jtag_get_device(i)->bypass)
- {
- LOG_ERROR("BUG: scan data for a device in BYPASS");
- exit(-1);
- }
- #endif
- }
- }
- return ERROR_OK;
- }
-
- void MINIDRIVER(interface_jtag_add_dr_out)(int device_num,
- int num_fields,
- const int *num_bits,
- const u32 *value,
- enum tap_state end_state)
- {
- int i;
- int field_count = 0;
- int scan_size;
- int bypass_devices = 0;
-
- jtag_command_t **last_cmd = jtag_get_last_command_p();
- jtag_device_t *device = jtag_devices;
- /* 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 = end_state;
-
- for (i = 0; i < jtag_num_devices; i++)
- {
- (*last_cmd)->cmd.scan->fields[field_count].device = i;
-
- if (i == device_num)
- {
- int j;
- #ifdef _DEBUG_JTAG_IO_
- /* if a device is listed, the BYPASS register must not be selected */
- if (jtag_get_device(i)->bypass)
- {
- LOG_ERROR("BUG: scan data for a device in BYPASS");
- exit(-1);
- }
- #endif
- for (j = 0; j < num_fields; j++)
- {
- u8 out_value[4];
- scan_size = num_bits[j];
- buf_set_u32(out_value, 0, scan_size, value[j]);
- (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
- (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
- (*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
- {
- #ifdef _DEBUG_JTAG_IO_
- /* if a device isn't listed, the BYPASS register should be selected */
- if (!jtag_get_device(i)->bypass)
- {
- LOG_ERROR("BUG: no scan data for a device not in BYPASS");
- exit(-1);
- }
- #endif
- /* 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;
- }
- }
- }
-
- void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
- {
- int retval;
-
- jtag_prelude(state);
-
- retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
- if (retval!=ERROR_OK)
- jtag_error=retval;
- }
-
- int MINIDRIVER(interface_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();
-
- /* 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;
-
- 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;
- }
-
- void jtag_add_tlr(void)
- {
- jtag_prelude(TAP_TLR);
-
- int retval;
- retval=interface_jtag_add_tlr();
- if (retval!=ERROR_OK)
- jtag_error=retval;
- }
-
- int MINIDRIVER(interface_jtag_add_tlr)()
- {
- enum tap_state state = TAP_TLR;
- 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_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;
-
-
- return ERROR_OK;
- }
-
- void jtag_add_pathmove(int num_states, enum tap_state *path)
- {
- enum tap_state cur_state=cmd_queue_cur_state;
- int i;
- int retval;
-
- /* the last state has to be a stable state */
- if (tap_move_map[path[num_states - 1]] == -1)
- {
- LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
- exit(-1);
- }
-
- for (i=0; i<num_states; i++)
- {
- if (path[i] == TAP_TLR)
- {
- LOG_ERROR("BUG: TAP_TLR is not a valid state for pathmove sequences");
- exit(-1);
- }
- if ((tap_transitions[cur_state].low != path[i])&&
- (tap_transitions[cur_state].high != path[i]))
- {
- LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
- exit(-1);
- }
- cur_state = path[i];
- }
-
- jtag_prelude1();
-
-
- retval=interface_jtag_add_pathmove(num_states, path);
- cmd_queue_cur_state = path[num_states - 1];
- if (retval!=ERROR_OK)
- jtag_error=retval;
- }
-
- int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
- {
- jtag_command_t **last_cmd = jtag_get_last_command_p();
- int i;
-
- /* 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];
-
- return ERROR_OK;
- }
-
- int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, 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_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;
-
- return ERROR_OK;
- }
-
- void jtag_add_runtest(int num_cycles, enum tap_state state)
- {
- int retval;
-
- jtag_prelude(state);
-
- /* executed by sw or hw fifo */
- retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
- if (retval!=ERROR_OK)
- jtag_error=retval;
- }
-
- void jtag_add_reset(int req_tlr_or_trst, int req_srst)
- {
- int trst_with_tlr = 0;
- int retval;
-
- /* FIX!!! there are *many* different cases here. A better
- * approach is needed for legal combinations of transitions...
- */
- if ((jtag_reset_config & RESET_HAS_SRST)&&
- (jtag_reset_config & RESET_HAS_TRST)&&
- ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
- {
- if (((req_tlr_or_trst&&!jtag_trst)||
- (!req_tlr_or_trst&&jtag_trst))&&
- ((req_srst&&!jtag_srst)||
- (!req_srst&&jtag_srst)))
- {
- /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
- //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
- }
- }
-
- /* 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_tlr_or_trst))
- {
- LOG_ERROR("BUG: requested reset would assert trst");
- jtag_error=ERROR_FAIL;
- return;
- }
-
- /* if TRST pulls SRST, we reset with TAP T-L-R */
- if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
- {
- trst_with_tlr = 1;
- }
-
- if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
- {
- LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
- jtag_error=ERROR_FAIL;
- return;
- }
-
- if (req_tlr_or_trst)
- {
- if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
- {
- jtag_trst = 1;
- } else
- {
- trst_with_tlr = 1;
- }
- } else
- {
- jtag_trst = 0;
- }
-
- jtag_srst = req_srst;
-
- retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
- if (retval!=ERROR_OK)
- {
- jtag_error=retval;
- return;
- }
-
- if (jtag_srst)
- {
- LOG_DEBUG("SRST line asserted");
- }
- else
- {
- LOG_DEBUG("SRST line released");
- if (jtag_nsrst_delay)
- jtag_add_sleep(jtag_nsrst_delay * 1000);
- }
-
- if (trst_with_tlr)
- {
- LOG_DEBUG("JTAG reset with TLR instead of TRST");
- jtag_add_end_state(TAP_TLR);
- jtag_add_tlr();
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
- return;
- }
-
- if (jtag_trst)
- {
- /* we just asserted nTRST, so we're now in Test-Logic-Reset,
- * and inform possible listeners about this
- */
- LOG_DEBUG("TRST line asserted");
- cmd_queue_cur_state = TAP_TLR;
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
- }
- else
- {
- if (jtag_ntrst_delay)
- jtag_add_sleep(jtag_ntrst_delay * 1000);
- }
- }
-
- int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
- {
- 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_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;
-
- return ERROR_OK;
- }
-
- void jtag_add_end_state(enum tap_state state)
- {
- cmd_queue_end_state = state;
- if ((cmd_queue_end_state == TAP_SD)||(cmd_queue_end_state == TAP_SI))
- {
- LOG_ERROR("BUG: TAP_SD/SI can't be end state. Calling code should use a larger scan field");
- }
- }
-
- int MINIDRIVER(interface_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;
- }
-
- void jtag_add_sleep(u32 us)
- {
- keep_alive(); /* we might be running on a very slow JTAG clk */
- int retval=interface_jtag_add_sleep(us);
- if (retval!=ERROR_OK)
- jtag_error=retval;
- return;
- }
-
- 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_
- LOG_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);
- LOG_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)
- {
- LOG_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
- */
- LOG_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);
- LOG_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
- {
- LOG_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;
- 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 MINIDRIVER(interface_jtag_execute_queue)(void)
- {
- int retval;
-
- if (jtag==NULL)
- {
- LOG_ERROR("No JTAG interface configured yet. Issue 'init' command in startup scripts before communicating with targets.");
- return ERROR_FAIL;
- }
-
- retval = jtag->execute_queue();
-
- cmd_queue_free();
-
- jtag_command_queue = NULL;
- last_comand_pointer = &jtag_command_queue;
-
- return retval;
- }
-
- int jtag_execute_queue(void)
- {
- int retval=interface_jtag_execute_queue();
- if (retval==ERROR_OK)
- {
- retval=jtag_error;
- }
- jtag_error=ERROR_OK;
- return retval;
- }
-
- int jtag_reset_callback(enum jtag_event event, void *priv)
- {
- jtag_device_t *device = priv;
-
- LOG_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)
- {
- alive_sleep(us/1000);
- }
-
- /* Try to examine chain layout according to IEEE 1149.1 §12
- */
- int jtag_examine_chain(void)
- {
- 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))
- {
- LOG_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 */
- LOG_WARNING("Device does not have IDCODE");
- idcode=0;
-
- bit_count += 1;
- }
- else
- {
- u32 manufacturer;
- u32 part;
- u32 version;
-
- if (idcode == 0x000000FF)
- {
- int unexpected=0;
- /* End of chain (invalid manufacturer ID)
- *
- * The JTAG examine is the very first thing that happens
- *
- * A single JTAG device requires only 64 bits to be read back correctly.
- *
- * The code below adds a check that the rest of the data scanned (640 bits)
- * are all as expected. This helps diagnose/catch problems with the JTAG chain
- *
- * earlier and gives more helpful/explicit error messages.
- */
- for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
- {
- idcode = buf_get_u32(idcode_buffer, bit_count, 32);
- if (unexpected||(idcode != 0x000000FF))
- {
- LOG_WARNING("Unexpected idcode after end of chain! %d 0x%08x", bit_count, idcode);
- unexpected = 1;
- }
- }
-
- break;
- }
-
- manufacturer = (idcode & 0xffe) >> 1;
- part = (idcode & 0xffff000) >> 12;
- version = (idcode & 0xf0000000) >> 28;
-
- LOG_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;
- }
- if (device)
- {
- device->idcode = idcode;
- device = device->next;
- }
- device_count++;
- }
-
- /* see if number of discovered devices matches configuration */
- if (device_count != jtag_num_devices)
- {
- LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
- device_count, jtag_num_devices);
- LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
- return ERROR_JTAG_INIT_FAILED;
- }
-
- return ERROR_OK;
- }
-
- int jtag_validate_chain(void)
- {
- 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);
- LOG_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);
- LOG_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;
- }
-
-
- static int
- jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
- {
- Jim_GetOptInfo goi;
- int e;
- Jim_Nvp *n;
- struct command_context_s *context;
-
- enum {
- JTAG_CMD_INTERFACE,
- JTAG_CMD_INIT_RESET,
- };
-
- const Jim_Nvp jtag_cmds[] = {
- { .name = "interface" , .value = JTAG_CMD_INTERFACE },
- { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
-
- { .name = NULL, .value = -1 },
- };
-
- context = Jim_GetAssocData(interp, "context");
- // go past the command
- Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
-
- e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
- if( e != JIM_OK ){
- Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
- return e;
- }
- Jim_SetEmptyResult( goi.interp );
- switch( n->value ){
- case JTAG_CMD_INTERFACE:
- // return the name of the interface
- // TCL code might need to know the exact type...
- // FUTURE: we allow this as a means to "set" the interface.
- if( goi.argc != 0 ){
- Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
- return JIM_ERR;
- }
- Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
- return JIM_OK;
- case JTAG_CMD_INIT_RESET:
- if( goi.argc != 0 ){
- Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
- return JIM_ERR;
- }
- e = jtag_init_reset(context);
- if( e != ERROR_OK ){
- Jim_SetResult_sprintf( goi.interp, "error: %d", e);
- return JIM_ERR;
- }
- return JIM_OK;
- }
-
-
- return JIM_ERR;
- }
-
- int jtag_register_commands(struct command_context_s *cmd_ctx)
- {
- register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
-
- register_command(cmd_ctx, NULL, "interface", handle_interface_command,
- COMMAND_CONFIG, "try to configure interface");
- register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
- COMMAND_ANY, "set jtag speed (if supported)");
- register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
- COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
- 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_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
- register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
- COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
-
- 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, "irscan", handle_irscan_command,
- COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
- register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
-
- 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)
- return ERROR_OK;
-
- if (!jtag_interface)
- {
- /* nothing was previously specified by "interface" command */
- LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
- return ERROR_JTAG_INVALID_INTERFACE;
- }
- if(hasKHz)
- {
- jtag_interface->khz(speed_khz, &jtag_speed);
- hasKHz = 0;
- }
-
- if (jtag_interface->init() != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
-
-
-
- jtag = jtag_interface;
- return ERROR_OK;
- }
-
- static int jtag_init_inner(struct command_context_s *cmd_ctx)
- {
- jtag_device_t *device;
- int retval;
-
- LOG_DEBUG("Init JTAG chain");
-
- 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_tlr();
- if ((retval=jtag_execute_queue())!=ERROR_OK)
- return retval;
-
- /* examine chain first, as this could discover the real chain layout */
- if (jtag_examine_chain() != ERROR_OK)
- {
- LOG_ERROR("trying to validate configured JTAG chain anyway...");
- }
-
- if (jtag_validate_chain() != ERROR_OK)
- {
- LOG_ERROR("Could not validate JTAG chain, continuing anyway...");
- }
-
- return ERROR_OK;
- }
-
- int jtag_init_reset(struct command_context_s *cmd_ctx)
- {
- int retval;
-
- if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
- return retval;
-
- LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / TLR");
-
- /* Reset can happen after a power cycle.
- *
- * Ideally we would only assert TRST or run TLR before the target reset.
- *
- * However w/srst_pulls_trst, trst is asserted together with the target
- * reset whether we want it or not.
- *
- * NB! Some targets have JTAG circuitry disabled until a
- * trst & srst has been asserted.
- *
- * NB! here we assume nsrst/ntrst delay are sufficient!
- *
- * NB! order matters!!!! srst *can* disconnect JTAG circuitry
- *
- */
- jtag_add_reset(1, 0); /* TLR or TRST */
- if (jtag_reset_config & RESET_HAS_SRST)
- {
- jtag_add_reset(1, 1);
- if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
- jtag_add_reset(0, 1);
- }
- jtag_add_reset(0, 0);
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- return retval;
-
- /* Check that we can communication on the JTAG chain + eventually we want to
- * be able to perform enumeration only after OpenOCD has started
- * telnet and GDB server
- *
- * That would allow users to more easily perform any magic they need to before
- * reset happens.
- */
- return jtag_init_inner(cmd_ctx);
- }
-
- int jtag_init(struct command_context_s *cmd_ctx)
- {
- int retval;
- if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
- return retval;
- if (jtag_init_inner(cmd_ctx)==ERROR_OK)
- {
- return ERROR_OK;
- }
- return jtag_init_reset(cmd_ctx);
- }
-
- static int default_khz(int khz, int *jtag_speed)
- {
- LOG_ERROR("Translation from khz to jtag_speed not implemented");
- return ERROR_FAIL;
- }
-
- static int default_speed_div(int speed, int *khz)
- {
- LOG_ERROR("Translation from jtag_speed to khz not implemented");
- return ERROR_FAIL;
- }
-
- static int default_power_dropout(int *dropout)
- {
- *dropout=0; /* by default we can't detect power dropout */
- return ERROR_OK;
- }
-
- static int default_srst_asserted(int *srst_asserted)
- {
- *srst_asserted=0; /* by default we can't detect srst asserted */
- return ERROR_OK;
- }
-
- int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
- {
- int i;
- int retval;
-
- /* check whether the interface is already configured */
- if (jtag_interface)
- {
- LOG_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 ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
- {
- return retval;
- }
-
- jtag_interface = jtag_interfaces[i];
-
- if (jtag_interface->khz == NULL)
- {
- jtag_interface->khz = default_khz;
- }
- if (jtag_interface->speed_div == NULL)
- {
- jtag_interface->speed_div = default_speed_div;
- }
- if (jtag_interface->power_dropout == NULL)
- {
- jtag_interface->power_dropout = default_power_dropout;
- }
- if (jtag_interface->srst_asserted == NULL)
- {
- jtag_interface->srst_asserted = default_srst_asserted;
- }
-
- return ERROR_OK;
- }
- }
-
- /* no valid interface was found (i.e. the configuration option,
- * didn't match one of the compiled-in interfaces
- */
- LOG_ERROR("No valid jtag interface found (%s)", args[0]);
- LOG_ERROR("compiled-in jtag interfaces:");
- for (i = 0; jtag_interfaces[i]; i++)
- {
- LOG_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)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- 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
- {
- LOG_ERROR("invalid reset_config argument, defaulting to none");
- jtag_reset_config = RESET_NONE;
- return ERROR_INVALID_ARGUMENTS;
- }
- }
-
- if (argc >= 2)
- {
- if (strcmp(args[1], "separate") == 0)
- {
- /* seperate reset lines - default */
- } else
- {
- 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
- {
- LOG_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
- {
- LOG_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
- {
- LOG_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)
- {
- LOG_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)
- {
- LOG_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)
- {
- int retval=ERROR_OK;
-
- if (argc == 1)
- {
- LOG_DEBUG("handle jtag speed");
-
- int cur_speed = 0;
- cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
-
- /* this command can be called during CONFIG,
- * in which case jtag isn't initialized */
- if (jtag)
- {
- retval=jtag->speed(cur_speed);
- }
- } else if (argc == 0)
- {
- } else
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
- command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
-
- return retval;
- }
-
- int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
- {
- int retval=ERROR_OK;
- LOG_DEBUG("handle jtag khz");
-
- if(argc == 1)
- {
- speed_khz = strtoul(args[0], NULL, 0);
- if (jtag != NULL)
- {
- int cur_speed = 0;
- LOG_DEBUG("have interface set up");
- int speed_div1;
- if ((retval=jtag->khz(speed_khz, &speed_div1))!=ERROR_OK)
- {
- speed_khz = 0;
- return retval;
- }
-
- cur_speed = jtag_speed = speed_div1;
-
- retval=jtag->speed(cur_speed);
- } else
- {
- hasKHz = 1;
- }
- } else if (argc==0)
- {
- } else
- {
- return ERROR_COMMAND_SYNTAX_ERROR;
- }
-
- if (jtag!=NULL)
- {
- if ((retval=jtag->speed_div(jtag_speed, &speed_khz))!=ERROR_OK)
- return retval;
- }
-
- if (speed_khz==0)
- {
- command_print(cmd_ctx, "RCLK - adaptive");
- } else
- {
- command_print(cmd_ctx, "%d kHz", speed_khz);
- }
- return retval;
-
- }
-
- 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[cmd_queue_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;
-
- 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_interface_init(cmd_ctx) != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
-
- jtag_add_reset(trst, srst);
- 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_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);
- jtag_device_t *device_ptr=jtag_get_device(device);
- if (device==NULL)
- {
- return ERROR_FAIL;
- }
- int field_size = device_ptr->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 Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
- {
- int retval;
- scan_field_t *fields;
- int num_fields;
- int field_count = 0;
- int i, e;
- long device;
-
- /* args[1] = device
- * args[2] = num_bits
- * args[3] = hex string
- * ... repeat num bits and hex string ...
- */
- if ((argc < 4) || ((argc % 2)!=0))
- {
- Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
- return JIM_ERR;
- }
-
- for (i = 2; i < argc; i+=2)
- {
- long bits;
-
- e = Jim_GetLong(interp, args[i], &bits);
- if (e != JIM_OK)
- return e;
- }
-
- e = Jim_GetLong(interp, args[1], &device);
- if (e != JIM_OK)
- return e;
-
- num_fields=(argc-2)/2;
- fields = malloc(sizeof(scan_field_t) * num_fields);
- for (i = 2; i < argc; i+=2)
- {
- long bits;
- int len;
- const char *str;
-
- Jim_GetLong(interp, args[i], &bits);
- str = Jim_GetString(args[i+1], &len);
-
- fields[field_count].device = device;
- fields[field_count].num_bits = bits;
- fields[field_count].out_value = malloc(CEIL(bits, 8));
- str_to_buf(str, len, fields[field_count].out_value, bits, 0);
- fields[field_count].out_mask = NULL;
- fields[field_count].in_value = fields[field_count].out_value;
- fields[field_count].in_check_mask = NULL;
- fields[field_count].in_check_value = NULL;
- fields[field_count].in_handler = NULL;
- fields[field_count++].in_handler_priv = NULL;
- }
-
- jtag_add_dr_scan(num_fields, fields, -1);
- retval = jtag_execute_queue();
- if (retval != ERROR_OK)
- {
- Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
- Jim_AppendStrings(interp, Jim_GetResult(interp), "drscan: jtag execute failed", NULL);
- return JIM_ERR;
- }
-
- field_count=0;
- Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
- for (i = 2; i < argc; i+=2)
- {
- long bits;
- char *str;
-
- Jim_GetLong(interp, args[i], &bits);
- str = buf_to_str(fields[field_count].in_value, bits, 16);
- free(fields[field_count].out_value);
-
- Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
- free(str);
- field_count++;
- }
-
- Jim_SetResult(interp, list);
-
- free(fields);
-
- return JIM_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;
- }
-
-
- int jtag_power_dropout(int *dropout)
- {
- return jtag->power_dropout(dropout);
- }
-
- int jtag_srst_asserted(int *srst_asserted)
- {
- return jtag->srst_asserted(srst_asserted);
- }
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