diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/jtag/jtag.c | 3682 |
1 files changed, 1841 insertions, 1841 deletions
diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index 5696fa0b..77c4b3f2 100644 --- a/src/jtag/jtag.c +++ b/src/jtag/jtag.c @@ -1,1841 +1,1841 @@ -/*************************************************************************** - * 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; -} +/***************************************************************************
+ * 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;
+}
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