-/***************************************************************************\r
- * Copyright (C) 2005 by Dominic Rath *\r
- * Dominic.Rath@gmx.de *\r
- * *\r
- * This program is free software; you can redistribute it and/or modify *\r
- * it under the terms of the GNU General Public License as published by *\r
- * the Free Software Foundation; either version 2 of the License, or *\r
- * (at your option) any later version. *\r
- * *\r
- * This program is distributed in the hope that it will be useful, *\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *\r
- * GNU General Public License for more details. *\r
- * *\r
- * You should have received a copy of the GNU General Public License *\r
- * along with this program; if not, write to the *\r
- * Free Software Foundation, Inc., *\r
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *\r
- ***************************************************************************/\r
-#ifdef HAVE_CONFIG_H\r
-#include "config.h"\r
-#endif\r
-\r
-#include "replacements.h"\r
-\r
-#include "jtag.h"\r
-\r
-#include "command.h"\r
-#include "log.h"\r
-#include "interpreter.h"\r
-\r
-#include "stdlib.h"\r
-#include "string.h"\r
-#include <unistd.h>\r
-\r
-char* tap_state_strings[16] =\r
-{\r
- "tlr", \r
- "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",\r
- "rti",\r
- "sis", "ci", "si", "e1i", "pi", "e2i", "ui"\r
-};\r
-\r
-typedef struct cmd_queue_page_s\r
-{\r
- void *address;\r
- size_t used;\r
- struct cmd_queue_page_s *next;\r
-} cmd_queue_page_t;\r
-\r
-#define CMD_QUEUE_PAGE_SIZE (1024 * 1024)\r
-static cmd_queue_page_t *cmd_queue_pages = NULL;\r
-\r
-/* tap_move[i][j]: tap movement command to go from state i to state j\r
- * 0: Test-Logic-Reset\r
- * 1: Run-Test/Idle\r
- * 2: Shift-DR\r
- * 3: Pause-DR\r
- * 4: Shift-IR\r
- * 5: Pause-IR\r
- * \r
- * SD->SD and SI->SI have to be caught in interface specific code\r
- */\r
-u8 tap_move[6][6] =\r
-{\r
-/* TLR RTI SD PD SI PI */\r
- {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */\r
- {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */\r
- {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */\r
- {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */\r
- {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */\r
- {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */\r
-};\r
-\r
-int tap_move_map[16] = {\r
- 0, -1, -1, 2, -1, 3, -1, -1,\r
- 1, -1, -1, 4, -1, 5, -1, -1\r
-};\r
-\r
-tap_transition_t tap_transitions[16] =\r
-{\r
- {TAP_TLR, TAP_RTI}, /* TLR */\r
- {TAP_SIS, TAP_CD}, /* SDS */\r
- {TAP_E1D, TAP_SD}, /* CD */\r
- {TAP_E1D, TAP_SD}, /* SD */\r
- {TAP_UD, TAP_PD}, /* E1D */\r
- {TAP_E2D, TAP_PD}, /* PD */\r
- {TAP_UD, TAP_SD}, /* E2D */\r
- {TAP_SDS, TAP_RTI}, /* UD */\r
- {TAP_SDS, TAP_RTI}, /* RTI */\r
- {TAP_TLR, TAP_CI}, /* SIS */\r
- {TAP_E1I, TAP_SI}, /* CI */\r
- {TAP_E1I, TAP_SI}, /* SI */\r
- {TAP_UI, TAP_PI}, /* E1I */\r
- {TAP_E2I, TAP_PI}, /* PI */\r
- {TAP_UI, TAP_SI}, /* E2I */\r
- {TAP_SDS, TAP_RTI} /* UI */\r
-};\r
-\r
-char* jtag_event_strings[] =\r
-{\r
- "SRST asserted",\r
- "TRST asserted",\r
- "SRST released",\r
- "TRST released"\r
-};\r
-\r
-enum tap_state end_state = TAP_TLR;\r
-enum tap_state cur_state = TAP_TLR;\r
-int jtag_trst = 0;\r
-int jtag_srst = 0;\r
-\r
-jtag_command_t *jtag_command_queue = NULL;\r
-jtag_command_t **last_comand_pointer = &jtag_command_queue;\r
-jtag_device_t *jtag_devices = NULL;\r
-int jtag_num_devices = 0;\r
-int jtag_ir_scan_size = 0;\r
-enum reset_types jtag_reset_config = RESET_NONE;\r
-enum tap_state cmd_queue_end_state = TAP_TLR;\r
-enum tap_state cmd_queue_cur_state = TAP_TLR;\r
-\r
-int jtag_verify_capture_ir = 1;\r
-\r
-/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */\r
-int jtag_nsrst_delay = 0; /* default to no nSRST delay */\r
-int jtag_ntrst_delay = 0; /* default to no nTRST delay */ \r
-\r
-/* maximum number of JTAG devices expected in the chain\r
- */\r
-#define JTAG_MAX_CHAIN_SIZE 20 \r
-\r
-/* callbacks to inform high-level handlers about JTAG state changes */\r
-jtag_event_callback_t *jtag_event_callbacks;\r
-\r
-/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)\r
- */\r
-#if BUILD_PARPORT == 1\r
- extern jtag_interface_t parport_interface;\r
-#endif\r
-\r
-#if BUILD_FT2232_FTD2XX == 1\r
- extern jtag_interface_t ft2232_interface;\r
-#endif\r
-\r
-#if BUILD_FT2232_LIBFTDI == 1\r
- extern jtag_interface_t ft2232_interface;\r
-#endif\r
-\r
-#if BUILD_AMTJTAGACCEL == 1\r
- extern jtag_interface_t amt_jtagaccel_interface;\r
-#endif\r
-\r
-#if BUILD_EP93XX == 1\r
- extern jtag_interface_t ep93xx_interface;\r
-#endif\r
-\r
-#if BUILD_AT91RM9200 == 1\r
- extern jtag_interface_t at91rm9200_interface;\r
-#endif\r
-\r
-#if BUILD_GW16012 == 1\r
- extern jtag_interface_t gw16012_interface;\r
-#endif\r
-\r
-#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1\r
- extern jtag_interface_t presto_interface;\r
-#endif\r
-\r
-#if BUILD_USBPROG == 1\r
- extern jtag_interface_t usbprog_interface;\r
-#endif\r
-\r
-jtag_interface_t *jtag_interfaces[] = {\r
-#if BUILD_PARPORT == 1\r
- &parport_interface,\r
-#endif\r
-#if BUILD_FT2232_FTD2XX == 1\r
- &ft2232_interface,\r
-#endif\r
-#if BUILD_FT2232_LIBFTDI == 1\r
- &ft2232_interface,\r
-#endif\r
-#if BUILD_AMTJTAGACCEL == 1\r
- &amt_jtagaccel_interface,\r
-#endif\r
-#if BUILD_EP93XX == 1\r
- &ep93xx_interface,\r
-#endif\r
-#if BUILD_AT91RM9200 == 1\r
- &at91rm9200_interface,\r
-#endif\r
-#if BUILD_GW16012 == 1\r
- &gw16012_interface,\r
-#endif\r
-#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1\r
- &presto_interface,\r
-#endif\r
-#if BUILD_USBPROG == 1\r
- &usbprog_interface,\r
-#endif\r
- NULL,\r
-};\r
-\r
-jtag_interface_t *jtag = NULL;\r
-\r
-/* configuration */\r
-char* jtag_interface = NULL;\r
-int jtag_speed = -1;\r
-\r
-\r
-/* forward declarations */\r
-int jtag_add_statemove(enum tap_state endstate);\r
-int jtag_add_pathmove(int num_states, enum tap_state *path);\r
-int jtag_add_runtest(int num_cycles, enum tap_state endstate);\r
-int jtag_add_reset(int trst, int srst);\r
-int jtag_add_end_state(enum tap_state endstate);\r
-int jtag_add_sleep(u32 us);\r
-int jtag_execute_queue(void);\r
-int jtag_cancel_queue(void);\r
-\r
-/* jtag commands */\r
-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)\r
-{\r
- jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;\r
- \r
- if (callback == NULL)\r
- {\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- \r
- if (*callbacks_p)\r
- {\r
- while ((*callbacks_p)->next)\r
- callbacks_p = &((*callbacks_p)->next);\r
- callbacks_p = &((*callbacks_p)->next);\r
- }\r
- \r
- (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));\r
- (*callbacks_p)->callback = callback;\r
- (*callbacks_p)->priv = priv;\r
- (*callbacks_p)->next = NULL;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))\r
-{\r
- jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;\r
- \r
- if (callback == NULL)\r
- {\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- \r
- while (*callbacks_p)\r
- {\r
- jtag_event_callback_t **next = &((*callbacks_p)->next);\r
- if ((*callbacks_p)->callback == callback)\r
- {\r
- free(*callbacks_p);\r
- *callbacks_p = *next;\r
- }\r
- callbacks_p = next;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_call_event_callbacks(enum jtag_event event)\r
-{\r
- jtag_event_callback_t *callback = jtag_event_callbacks;\r
- \r
- DEBUG("jtag event: %s", jtag_event_strings[event]);\r
- \r
- while (callback)\r
- {\r
- callback->callback(event, callback->priv);\r
- callback = callback->next;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-/* returns a pointer to the pointer of the last command in queue\r
- * this may be a pointer to the root pointer (jtag_command_queue)\r
- * or to the next member of the last but one command\r
- */\r
-jtag_command_t** jtag_get_last_command_p(void)\r
-{\r
-/* jtag_command_t *cmd = jtag_command_queue;\r
- \r
- if (cmd)\r
- while (cmd->next)\r
- cmd = cmd->next;\r
- else\r
- return &jtag_command_queue;\r
- \r
- return &cmd->next;*/\r
- \r
- return last_comand_pointer;\r
-}\r
-\r
-/* returns a pointer to the n-th device in the scan chain */\r
-jtag_device_t* jtag_get_device(int num)\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- int i = 0;\r
-\r
- while (device)\r
- {\r
- if (num == i)\r
- return device;\r
- device = device->next;\r
- i++;\r
- }\r
- \r
- ERROR("jtag device number %d not defined", num);\r
- exit(-1);\r
-}\r
-\r
-void* cmd_queue_alloc(size_t size)\r
-{\r
- cmd_queue_page_t **p_page = &cmd_queue_pages;\r
- int offset;\r
-\r
- if (*p_page)\r
- {\r
- while ((*p_page)->next)\r
- p_page = &((*p_page)->next);\r
- if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)\r
- p_page = &((*p_page)->next);\r
- }\r
-\r
- if (!*p_page)\r
- {\r
- *p_page = malloc(sizeof(cmd_queue_page_t));\r
- (*p_page)->used = 0;\r
- (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);\r
- (*p_page)->next = NULL;\r
- }\r
-\r
- offset = (*p_page)->used;\r
- (*p_page)->used += size;\r
- \r
- u8 *t=(u8 *)((*p_page)->address);\r
- return t + offset;\r
-}\r
-\r
-void cmd_queue_free()\r
-{\r
- cmd_queue_page_t *page = cmd_queue_pages;\r
-\r
- while (page)\r
- {\r
- cmd_queue_page_t *last = page;\r
- free(page->address);\r
- page = page->next;\r
- free(last);\r
- }\r
-\r
- cmd_queue_pages = NULL;\r
-}\r
-\r
-int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{\r
- jtag_command_t **last_cmd;\r
- jtag_device_t *device;\r
- int i, j;\r
- int scan_size = 0;\r
-\r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for ir scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 1;\r
- (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < jtag_num_devices; i++)\r
- {\r
- int found = 0;\r
- device = jtag_get_device(i);\r
- scan_size = device->ir_length;\r
- (*last_cmd)->cmd.scan->fields[i].device = i;\r
- (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;\r
- (*last_cmd)->cmd.scan->fields[i].in_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */\r
-\r
- /* search the list */\r
- for (j = 0; j < num_fields; j++)\r
- {\r
- if (i == fields[j].device)\r
- {\r
- found = 1;\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- \r
- if (jtag_verify_capture_ir)\r
- {\r
- if (fields[j].in_handler==NULL)\r
- {\r
- jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);\r
- } else\r
- {\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected; \r
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;\r
- }\r
- }\r
- \r
- device->bypass = 0;\r
- break;\r
- }\r
- }\r
- \r
- if (!found)\r
- {\r
- /* if a device isn't listed, set it to BYPASS */\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;\r
- device->bypass = 1;\r
- \r
- }\r
- \r
- /* update device information */\r
- buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{\r
- jtag_command_t **last_cmd;\r
- int i;\r
-\r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for ir scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 1;\r
- (*last_cmd)->cmd.scan->num_fields = num_fields;\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
-\r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < num_fields; i++)\r
- {\r
- int num_bits = fields[i].num_bits;\r
- int num_bytes = CEIL(fields[i].num_bits, 8);\r
- (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;\r
- (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;\r
- }\r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{\r
- int i, j;\r
- int bypass_devices = 0;\r
- int field_count = 0;\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- jtag_device_t *device = jtag_devices;\r
- int scan_size;\r
-\r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* count devices in bypass */\r
- while (device)\r
- {\r
- if (device->bypass)\r
- bypass_devices++;\r
- device = device->next;\r
- }\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for dr scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 0;\r
- (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < jtag_num_devices; i++)\r
- {\r
- int found = 0;\r
- (*last_cmd)->cmd.scan->fields[field_count].device = i;\r
- \r
- for (j = 0; j < num_fields; j++)\r
- {\r
- if (i == fields[j].device)\r
- {\r
- found = 1;\r
- scan_size = fields[j].num_bits;\r
- (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;\r
- (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;\r
- (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;\r
- }\r
- }\r
- if (!found)\r
- {\r
- /* if a device isn't listed, the BYPASS register should be selected */\r
- if (!jtag_get_device(i)->bypass)\r
- {\r
- ERROR("BUG: no scan data for a device not in BYPASS");\r
- exit(-1);\r
- }\r
- \r
- /* program the scan field to 1 bit length, and ignore it's value */\r
- (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;\r
- (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;\r
- }\r
- else\r
- {\r
- /* if a device is listed, the BYPASS register must not be selected */\r
- if (jtag_get_device(i)->bypass)\r
- {\r
- WARNING("scan data for a device in BYPASS");\r
- }\r
- }\r
- }\r
- return ERROR_OK;\r
-}\r
-\r
-\r
-int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
-{\r
- int i;\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 0;\r
- (*last_cmd)->cmd.scan->num_fields = num_fields;\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < num_fields; i++)\r
- {\r
- int num_bits = fields[i].num_bits;\r
- int num_bytes = CEIL(fields[i].num_bits, 8);\r
- (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;\r
- (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-int jtag_add_statemove(enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_STATEMOVE;\r
-\r
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));\r
- (*last_cmd)->cmd.statemove->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_pathmove(int num_states, enum tap_state *path)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- int i;\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
- \r
- /* the last state has to be a stable state */\r
- if (tap_move_map[path[num_states - 1]] == -1)\r
- {\r
- ERROR("TAP path doesn't finish in a stable state");\r
- return ERROR_JTAG_NOT_IMPLEMENTED;\r
- }\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_PATHMOVE;\r
-\r
- (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));\r
- (*last_cmd)->cmd.pathmove->num_states = num_states;\r
- (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);\r
- \r
- for (i = 0; i < num_states; i++)\r
- (*last_cmd)->cmd.pathmove->path[i] = path[i];\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = path[num_states - 1];\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_runtest(int num_cycles, enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_RUNTEST;\r
-\r
- (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));\r
- (*last_cmd)->cmd.runtest->num_cycles = num_cycles;\r
- (*last_cmd)->cmd.runtest->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_reset(int req_trst, int req_srst)\r
-{\r
- int trst_with_tms = 0;\r
- \r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (req_trst == -1)\r
- req_trst = jtag_trst;\r
- \r
- if (req_srst == -1)\r
- req_srst = jtag_srst;\r
-\r
- /* Make sure that jtag_reset_config allows the requested reset */\r
- /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */\r
- if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))\r
- return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;\r
- \r
- /* if TRST pulls SRST, we reset with TAP T-L-R */\r
- if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))\r
- {\r
- req_trst = 0;\r
- trst_with_tms = 1;\r
- }\r
- \r
- if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))\r
- {\r
- ERROR("requested nSRST assertion, but the current configuration doesn't support this");\r
- return ERROR_JTAG_RESET_CANT_SRST;\r
- }\r
- \r
- if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))\r
- {\r
- req_trst = 0;\r
- trst_with_tms = 1;\r
- }\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_RESET;\r
-\r
- (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));\r
- (*last_cmd)->cmd.reset->trst = req_trst;\r
- (*last_cmd)->cmd.reset->srst = req_srst;\r
-\r
- jtag_trst = req_trst;\r
- jtag_srst = req_srst;\r
-\r
- if (jtag_srst)\r
- {\r
- jtag_call_event_callbacks(JTAG_SRST_ASSERTED);\r
- }\r
- else\r
- {\r
- jtag_call_event_callbacks(JTAG_SRST_RELEASED);\r
- if (jtag_nsrst_delay)\r
- jtag_add_sleep(jtag_nsrst_delay * 1000);\r
- }\r
- \r
- if (trst_with_tms)\r
- {\r
- last_cmd = &((*last_cmd)->next);\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_STATEMOVE;\r
-\r
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));\r
- (*last_cmd)->cmd.statemove->end_state = TAP_TLR;\r
- \r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- cmd_queue_cur_state = TAP_TLR;\r
- cmd_queue_end_state = TAP_TLR;\r
- \r
- return ERROR_OK;\r
- }\r
- else\r
- {\r
- if (jtag_trst)\r
- {\r
- /* we just asserted nTRST, so we're now in Test-Logic-Reset,\r
- * and inform possible listeners about this\r
- */\r
- cmd_queue_cur_state = TAP_TLR;\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- }\r
- else\r
- {\r
- /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,\r
- * but we might want to add a delay to give the TAP time to settle\r
- */\r
- if (jtag_ntrst_delay)\r
- jtag_add_sleep(jtag_ntrst_delay * 1000);\r
- }\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_end_state(enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_END_STATE;\r
-\r
- (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t));\r
- (*last_cmd)->cmd.end_state->end_state = state;\r
-\r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_sleep(u32 us)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_SLEEP;\r
-\r
- (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));\r
- (*last_cmd)->cmd.sleep->us = us;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_scan_size(scan_command_t *cmd)\r
-{\r
- int bit_count = 0;\r
- int i;\r
-\r
- /* count bits in scan command */\r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- bit_count += cmd->fields[i].num_bits;\r
- }\r
-\r
- return bit_count;\r
-}\r
-\r
-int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)\r
-{\r
- int bit_count = 0;\r
- int i;\r
- \r
- bit_count = jtag_scan_size(cmd);\r
- *buffer = malloc(CEIL(bit_count, 8));\r
- \r
- bit_count = 0;\r
-\r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- if (cmd->fields[i].out_value)\r
- {\r
-#ifdef _DEBUG_JTAG_IO_\r
- char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);\r
-#endif\r
- buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("fields[%i].out_value: 0x%s", i, char_buf);\r
- free(char_buf);\r
-#endif\r
- }\r
- \r
- bit_count += cmd->fields[i].num_bits;\r
- }\r
-\r
- return bit_count;\r
-\r
-}\r
-\r
-int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)\r
-{\r
- int i;\r
- int bit_count = 0;\r
- int retval;\r
- \r
- /* we return ERROR_OK, unless a check fails, or a handler reports a problem */\r
- retval = ERROR_OK;\r
- \r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- /* if neither in_value nor in_handler\r
- * are specified we don't have to examine this field\r
- */\r
- if (cmd->fields[i].in_value || cmd->fields[i].in_handler)\r
- {\r
- int num_bits = cmd->fields[i].num_bits;\r
- u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);\r
- \r
-#ifdef _DEBUG_JTAG_IO_\r
- char *char_buf;\r
-\r
- char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);\r
- DEBUG("fields[%i].in_value: 0x%s", i, char_buf);\r
- free(char_buf);\r
-#endif\r
- \r
- if (cmd->fields[i].in_value)\r
- {\r
- buf_cpy(captured, cmd->fields[i].in_value, num_bits);\r
- \r
- if (cmd->fields[i].in_handler)\r
- {\r
- if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)\r
- {\r
- WARNING("in_handler reported a failed check");\r
- retval = ERROR_JTAG_QUEUE_FAILED;\r
- }\r
- }\r
- }\r
- \r
- /* no in_value specified, but a handler takes care of the scanned data */\r
- if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))\r
- {\r
- if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)\r
- {\r
- /* We're going to call the error:handler later, but if the in_handler\r
- * reported an error we report this failure upstream\r
- */\r
- WARNING("in_handler reported a failed check");\r
- retval = ERROR_JTAG_QUEUE_FAILED;\r
- }\r
- }\r
-\r
- free(captured);\r
- }\r
- bit_count += cmd->fields[i].num_bits;\r
- }\r
-\r
- return retval;\r
-}\r
-\r
-int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)\r
-{\r
- int retval = ERROR_OK;\r
- int num_bits = field->num_bits;\r
- \r
- int compare_failed = 0;\r
- \r
- if (field->in_check_mask)\r
- compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);\r
- else\r
- compare_failed = buf_cmp(captured, field->in_check_value, num_bits);\r
- \r
- if (compare_failed)\r
- {\r
- /* An error handler could have caught the failing check\r
- * only report a problem when there wasn't a handler, or if the handler\r
- * acknowledged the error\r
- */ \r
- if (compare_failed)\r
- {\r
- char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);\r
- char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);\r
-\r
- if (field->in_check_mask)\r
- {\r
- char *in_check_mask_char;\r
- in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);\r
- WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);\r
- free(in_check_mask_char);\r
- }\r
- else\r
- {\r
- WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);\r
- }\r
-\r
- free(captured_char);\r
- free(in_check_value_char);\r
- \r
- retval = ERROR_JTAG_QUEUE_FAILED;\r
- }\r
- \r
- }\r
- return retval;\r
-}\r
-\r
-/* \r
- set up checking of this field using the in_handler. The values passed in must be valid until\r
- after jtag_execute() has completed.\r
- */\r
-void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)\r
-{\r
- if (value)\r
- field->in_handler = jtag_check_value;\r
- else\r
- field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */\r
- field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */ \r
- field->in_check_value = value;\r
- field->in_check_mask = mask;\r
-}\r
-\r
-enum scan_type jtag_scan_type(scan_command_t *cmd)\r
-{\r
- int i;\r
- int type = 0;\r
- \r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- if (cmd->fields[i].in_value || cmd->fields[i].in_handler)\r
- type |= SCAN_IN;\r
- if (cmd->fields[i].out_value)\r
- type |= SCAN_OUT;\r
- }\r
-\r
- return type;\r
-}\r
-\r
-int jtag_execute_queue(void)\r
-{\r
- int retval;\r
-\r
- retval = jtag->execute_queue();\r
- \r
- cmd_queue_free();\r
-\r
- jtag_command_queue = NULL;\r
- last_comand_pointer = &jtag_command_queue;\r
-\r
- return retval;\r
-}\r
-\r
-int jtag_reset_callback(enum jtag_event event, void *priv)\r
-{\r
- jtag_device_t *device = priv;\r
-\r
- DEBUG("-");\r
- \r
- if (event == JTAG_TRST_ASSERTED)\r
- {\r
- buf_set_ones(device->cur_instr, device->ir_length);\r
- device->bypass = 1;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-void jtag_sleep(u32 us)\r
-{\r
- usleep(us);\r
-}\r
-\r
-/* Try to examine chain layout according to IEEE 1149.1 §12\r
- */\r
-int jtag_examine_chain()\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- scan_field_t field;\r
- u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];\r
- int i;\r
- int bit_count;\r
- int device_count = 0;\r
- u8 zero_check = 0x0;\r
- u8 one_check = 0xff;\r
- \r
- field.device = 0;\r
- field.num_bits = sizeof(idcode_buffer) * 8;\r
- field.out_value = idcode_buffer;\r
- field.out_mask = NULL;\r
- field.in_value = idcode_buffer;\r
- field.in_check_value = NULL;\r
- field.in_check_mask = NULL;\r
- field.in_handler = NULL;\r
- field.in_handler_priv = NULL;\r
- \r
- for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)\r
- {\r
- buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);\r
- }\r
- \r
- jtag_add_plain_dr_scan(1, &field, TAP_TLR);\r
- jtag_execute_queue();\r
- \r
- for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)\r
- {\r
- zero_check |= idcode_buffer[i];\r
- one_check &= idcode_buffer[i];\r
- }\r
- \r
- /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */\r
- if ((zero_check == 0x00) || (one_check == 0xff))\r
- {\r
- ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)\r
- {\r
- u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);\r
- if ((idcode & 1) == 0)\r
- {\r
- /* LSB must not be 0, this indicates a device in bypass */\r
- device_count++;\r
- \r
- bit_count += 1;\r
- }\r
- else\r
- {\r
- u32 manufacturer;\r
- u32 part;\r
- u32 version;\r
- \r
- if (idcode == 0x000000FF)\r
- {\r
- /* End of chain (invalid manufacturer ID) */\r
- break;\r
- }\r
- \r
- if (device)\r
- {\r
- device->idcode = idcode;\r
- device = device->next;\r
- }\r
- device_count++;\r
- \r
- manufacturer = (idcode & 0xffe) >> 1;\r
- part = (idcode & 0xffff000) >> 12;\r
- version = (idcode & 0xf0000000) >> 28;\r
-\r
- INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)", \r
- idcode, manufacturer, part, version);\r
- \r
- bit_count += 32;\r
- }\r
- }\r
- \r
- /* see if number of discovered devices matches configuration */\r
- if (device_count != jtag_num_devices)\r
- {\r
- ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)", \r
- device_count, jtag_num_devices);\r
- ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_validate_chain()\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- int total_ir_length = 0;\r
- u8 *ir_test = NULL;\r
- scan_field_t field;\r
- int chain_pos = 0;\r
- \r
- while (device)\r
- {\r
- total_ir_length += device->ir_length;\r
- device = device->next;\r
- }\r
- \r
- total_ir_length += 2;\r
- ir_test = malloc(CEIL(total_ir_length, 8));\r
- buf_set_ones(ir_test, total_ir_length);\r
- \r
- field.device = 0;\r
- field.num_bits = total_ir_length;\r
- field.out_value = ir_test;\r
- field.out_mask = NULL;\r
- field.in_value = ir_test;\r
- field.in_check_value = NULL;\r
- field.in_check_mask = NULL;\r
- field.in_handler = NULL;\r
- field.in_handler_priv = NULL;\r
- \r
- jtag_add_plain_ir_scan(1, &field, TAP_TLR);\r
- jtag_execute_queue();\r
- \r
- device = jtag_devices;\r
- while (device)\r
- {\r
- if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)\r
- {\r
- char *cbuf = buf_to_str(ir_test, total_ir_length, 16);\r
- ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);\r
- free(cbuf);\r
- free(ir_test);\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- chain_pos += device->ir_length;\r
- device = device->next;\r
- }\r
- \r
- if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)\r
- {\r
- char *cbuf = buf_to_str(ir_test, total_ir_length, 16);\r
- ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);\r
- free(cbuf);\r
- free(ir_test);\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- free(ir_test);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_register_commands(struct command_context_s *cmd_ctx)\r
-{\r
- register_command(cmd_ctx, NULL, "interface", handle_interface_command,\r
- COMMAND_CONFIG, NULL);\r
- register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,\r
- COMMAND_ANY, "set jtag speed (if supported) <speed>");\r
- register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,\r
- COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");\r
- register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,\r
- COMMAND_CONFIG, NULL);\r
- register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,\r
- COMMAND_CONFIG, NULL);\r
- register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,\r
- COMMAND_CONFIG, NULL);\r
- \r
- register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,\r
- COMMAND_EXEC, "print current scan chain configuration");\r
-\r
- register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,\r
- COMMAND_EXEC, "finish JTAG operations in <tap_state>");\r
- register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,\r
- COMMAND_EXEC, "toggle reset lines <trst> <srst>");\r
- register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,\r
- COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");\r
- register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,\r
- COMMAND_EXEC, "move to current endstate or [tap_state]");\r
- register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,\r
- COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");\r
- register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,\r
- COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");\r
-\r
- register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,\r
- COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");\r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_init(struct command_context_s *cmd_ctx)\r
-{\r
- int i, validate_tries = 0;\r
- \r
- DEBUG("-");\r
-\r
- if (jtag_speed == -1)\r
- jtag_speed = 0;\r
- \r
- if (jtag_interface && (jtag_interface[0] != 0))\r
- /* configuration var 'jtag_interface' is set, and not empty */\r
- for (i = 0; jtag_interfaces[i]; i++)\r
- {\r
- if (strcmp(jtag_interface, jtag_interfaces[i]->name) == 0)\r
- {\r
- jtag_device_t *device;\r
- device = jtag_devices;\r
- \r
- if (jtag_interfaces[i]->init() != ERROR_OK)\r
- return ERROR_JTAG_INIT_FAILED;\r
- jtag = jtag_interfaces[i];\r
-\r
- jtag_ir_scan_size = 0;\r
- jtag_num_devices = 0;\r
- while (device != NULL)\r
- {\r
- jtag_ir_scan_size += device->ir_length;\r
- jtag_num_devices++;\r
- device = device->next;\r
- }\r
- \r
- jtag_add_statemove(TAP_TLR);\r
- jtag_execute_queue();\r
-\r
- /* examine chain first, as this could discover the real chain layout */\r
- if (jtag_examine_chain() != ERROR_OK)\r
- {\r
- ERROR("trying to validate configured JTAG chain anyway...");\r
- }\r
- \r
- while (jtag_validate_chain() != ERROR_OK)\r
- {\r
- validate_tries++;\r
- if (validate_tries > 5)\r
- {\r
- ERROR("Could not validate JTAG chain, exit");\r
- jtag = NULL;\r
- return ERROR_JTAG_INVALID_INTERFACE;\r
- }\r
- usleep(10000);\r
- }\r
-\r
- return ERROR_OK;\r
- }\r
- }\r
- \r
- /* no valid interface was found (i.e. the configuration option,\r
- * didn't match one of the compiled-in interfaces\r
- */\r
- ERROR("No valid jtag interface found (%s)", jtag_interface);\r
- ERROR("compiled-in jtag interfaces:");\r
- for (i = 0; jtag_interfaces[i]; i++)\r
- {\r
- ERROR("%i: %s", i, jtag_interfaces[i]->name);\r
- }\r
- \r
- jtag = NULL;\r
- return ERROR_JTAG_INVALID_INTERFACE;\r
-}\r
-\r
-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- int i;\r
- \r
- /* only if the configuration var isn't overwritten from cmdline */\r
- if (!jtag_interface)\r
- {\r
- if (args[0] && (args[0][0] != 0))\r
- {\r
- for (i=0; jtag_interfaces[i]; i++)\r
- {\r
- if (strcmp(args[0], jtag_interfaces[i]->name) == 0)\r
- {\r
- if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)\r
- exit(-1);\r
- \r
- jtag_interface = jtag_interfaces[i]->name;\r
- \r
- return ERROR_OK;\r
- }\r
- }\r
- }\r
- \r
- /* remember the requested interface name, so we can complain about it later */\r
- jtag_interface = strdup(args[0]);\r
- DEBUG("'interface' command didn't specify a valid interface");\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- jtag_device_t **last_device_p = &jtag_devices;\r
-\r
- if (*last_device_p)\r
- {\r
- while ((*last_device_p)->next)\r
- last_device_p = &((*last_device_p)->next);\r
- last_device_p = &((*last_device_p)->next);\r
- }\r
-\r
- if (argc < 3)\r
- return ERROR_OK;\r
-\r
- *last_device_p = malloc(sizeof(jtag_device_t));\r
- (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);\r
-\r
- (*last_device_p)->expected = malloc((*last_device_p)->ir_length);\r
- buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));\r
- (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);\r
- buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));\r
-\r
- (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);\r
- (*last_device_p)->bypass = 1;\r
- buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);\r
- \r
- (*last_device_p)->next = NULL;\r
- \r
- jtag_register_event_callback(jtag_reset_callback, (*last_device_p));\r
- \r
- jtag_num_devices++;\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- int device_count = 0;\r
- \r
- while (device)\r
- {\r
- u32 expected, expected_mask, cur_instr;\r
- expected = buf_get_u32(device->expected, 0, device->ir_length);\r
- expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);\r
- cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);\r
- command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);\r
- device = device->next;\r
- device_count++;\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc >= 1)\r
- {\r
- if (strcmp(args[0], "none") == 0)\r
- jtag_reset_config = RESET_NONE;\r
- else if (strcmp(args[0], "trst_only") == 0)\r
- jtag_reset_config = RESET_HAS_TRST;\r
- else if (strcmp(args[0], "srst_only") == 0)\r
- jtag_reset_config = RESET_HAS_SRST;\r
- else if (strcmp(args[0], "trst_and_srst") == 0)\r
- jtag_reset_config = RESET_TRST_AND_SRST;\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
- \r
- if (argc >= 2)\r
- {\r
- if (strcmp(args[1], "srst_pulls_trst") == 0)\r
- jtag_reset_config |= RESET_SRST_PULLS_TRST;\r
- else if (strcmp(args[1], "trst_pulls_srst") == 0)\r
- jtag_reset_config |= RESET_TRST_PULLS_SRST;\r
- else if (strcmp(args[1], "combined") == 0)\r
- jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;\r
- else if (strcmp(args[1], "separate") == 0)\r
- jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
- \r
- if (argc >= 3)\r
- {\r
- if (strcmp(args[2], "trst_open_drain") == 0)\r
- jtag_reset_config |= RESET_TRST_OPEN_DRAIN;\r
- else if (strcmp(args[2], "trst_push_pull") == 0)\r
- jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
-\r
- if (argc >= 4)\r
- {\r
- if (strcmp(args[3], "srst_push_pull") == 0)\r
- jtag_reset_config |= RESET_SRST_PUSH_PULL;\r
- else if (strcmp(args[3], "srst_open_drain") == 0)\r
- jtag_reset_config &= ~RESET_SRST_PUSH_PULL;\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc < 1)\r
- {\r
- ERROR("jtag_nsrst_delay <ms> command takes one required argument");\r
- exit(-1);\r
- }\r
- else\r
- {\r
- jtag_nsrst_delay = strtoul(args[0], NULL, 0);\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc < 1)\r
- {\r
- ERROR("jtag_ntrst_delay <ms> command takes one required argument");\r
- exit(-1);\r
- }\r
- else\r
- {\r
- jtag_ntrst_delay = strtoul(args[0], NULL, 0);\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc == 0)\r
- command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);\r
-\r
- if (argc > 0)\r
- {\r
- /* this command can be called during CONFIG, \r
- * in which case jtag isn't initialized */\r
- if (jtag)\r
- jtag->speed(strtoul(args[0], NULL, 0));\r
- else\r
- jtag_speed = strtoul(args[0], NULL, 0);\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- enum tap_state state;\r
-\r
- if (argc < 1)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
- else\r
- {\r
- for (state = 0; state < 16; state++)\r
- {\r
- if (strcmp(args[0], tap_state_strings[state]) == 0)\r
- {\r
- jtag_add_end_state(state);\r
- jtag_execute_queue();\r
- }\r
- }\r
- }\r
- command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- int trst = -1;\r
- int srst = -1;\r
- int retval;\r
- \r
- if (argc < 1)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
-\r
- }\r
-\r
- if (args[0][0] == '1')\r
- trst = 1;\r
- else if (args[0][0] == '0')\r
- trst = 0;\r
- else\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- if (args[1][0] == '1')\r
- srst = 1;\r
- else if (args[1][0] == '0')\r
- srst = 0;\r
- else\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK)\r
- {\r
- switch (retval)\r
- {\r
- case ERROR_JTAG_RESET_WOULD_ASSERT_TRST:\r
- command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]);\r
- break;\r
- case ERROR_JTAG_RESET_CANT_SRST:\r
- command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it");\r
- break;\r
- default:\r
- command_print(cmd_ctx, "unknown error");\r
- }\r
- }\r
- jtag_execute_queue();\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc < 1)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- jtag_add_runtest(strtol(args[0], NULL, 0), -1);\r
- jtag_execute_queue();\r
-\r
- return ERROR_OK;\r
-\r
-}\r
-\r
-int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- enum tap_state state;\r
-\r
- state = -1;\r
- if (argc == 1)\r
- {\r
- for (state = 0; state < 16; state++)\r
- {\r
- if (strcmp(args[0], tap_state_strings[state]) == 0)\r
- {\r
- break;\r
- }\r
- }\r
- }\r
-\r
- jtag_add_statemove(state);\r
- jtag_execute_queue();\r
-\r
- return ERROR_OK;\r
-\r
-}\r
-\r
-int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- int i;\r
- scan_field_t *fields;\r
- \r
- if ((argc < 2) || (argc % 2))\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- fields = malloc(sizeof(scan_field_t) * argc / 2);\r
- \r
- for (i = 0; i < argc / 2; i++)\r
- {\r
- int device = strtoul(args[i*2], NULL, 0);\r
- int field_size = jtag_get_device(device)->ir_length;\r
- fields[i].device = device;\r
- fields[i].out_value = malloc(CEIL(field_size, 8));\r
- buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));\r
- fields[i].out_mask = NULL;\r
- fields[i].in_value = NULL;\r
- fields[i].in_check_mask = NULL;\r
- fields[i].in_handler = NULL;\r
- fields[i].in_handler_priv = NULL;\r
- }\r
-\r
- jtag_add_ir_scan(argc / 2, fields, -1);\r
- jtag_execute_queue();\r
-\r
- for (i = 0; i < argc / 2; i++)\r
- free(fields[i].out_value);\r
-\r
- free (fields);\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- scan_field_t *fields;\r
- int num_fields = 0;\r
- int field_count = 0;\r
- var_t *var;\r
- int i, j;\r
- \r
- if ((argc < 2) || (argc % 2))\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- for (i = 0; i < argc; i+=2)\r
- {\r
- var = get_var_by_namenum(args[i+1]);\r
- if (var)\r
- {\r
- num_fields += var->num_fields;\r
- }\r
- else\r
- {\r
- command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);\r
- return ERROR_OK;\r
- }\r
- }\r
-\r
- fields = malloc(sizeof(scan_field_t) * num_fields);\r
-\r
- for (i = 0; i < argc; i+=2)\r
- {\r
- var = get_var_by_namenum(args[i+1]);\r
- \r
- for (j = 0; j < var->num_fields; j++)\r
- {\r
- fields[field_count].device = strtol(args[i], NULL, 0);\r
- fields[field_count].num_bits = var->fields[j].num_bits;\r
- fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));\r
- buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);\r
- fields[field_count].out_mask = NULL;\r
- fields[field_count].in_value = fields[field_count].out_value;\r
- fields[field_count].in_check_mask = NULL;\r
- fields[field_count].in_check_value = NULL;\r
- fields[field_count].in_handler = field_le_to_host;\r
- fields[field_count++].in_handler_priv = &(var->fields[j]);\r
- }\r
- }\r
-\r
- jtag_add_dr_scan(num_fields, fields, -1);\r
- jtag_execute_queue();\r
- \r
- for (i = 0; i < argc / 2; i++)\r
- free(fields[i].out_value);\r
-\r
- free(fields);\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc == 1)\r
- {\r
- if (strcmp(args[0], "enable") == 0)\r
- {\r
- jtag_verify_capture_ir = 1;\r
- }\r
- else if (strcmp(args[0], "disable") == 0)\r
- {\r
- jtag_verify_capture_ir = 0;\r
- } else\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
- } else if (argc != 0)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
- \r
- command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");\r
- \r
- return ERROR_OK;\r
-}\r
+/***************************************************************************
+ * Copyright (C) 2005 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "replacements.h"
+
+#include "jtag.h"
+
+#include "command.h"
+#include "log.h"
+
+#include "stdlib.h"
+#include "string.h"
+#include <unistd.h>
+
+/* note that this is not marked as static as it must be available from outside jtag.c for those
+ that implement the jtag_xxx() minidriver layer
+*/
+int jtag_error=ERROR_OK;
+
+
+char* tap_state_strings[16] =
+{
+ "tlr",
+ "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
+ "rti",
+ "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
+};
+
+typedef struct cmd_queue_page_s
+{
+ void *address;
+ size_t used;
+ struct cmd_queue_page_s *next;
+} cmd_queue_page_t;
+
+#define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
+static cmd_queue_page_t *cmd_queue_pages = NULL;
+
+/* tap_move[i][j]: tap movement command to go from state i to state j
+ * 0: Test-Logic-Reset
+ * 1: Run-Test/Idle
+ * 2: Shift-DR
+ * 3: Pause-DR
+ * 4: Shift-IR
+ * 5: Pause-IR
+ *
+ * SD->SD and SI->SI have to be caught in interface specific code
+ */
+u8 tap_move[6][6] =
+{
+/* TLR RTI SD PD SI PI */
+ {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
+ {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
+ {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
+ {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
+ {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
+ {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
+};
+
+int tap_move_map[16] = {
+ 0, -1, -1, 2, -1, 3, -1, -1,
+ 1, -1, -1, 4, -1, 5, -1, -1
+};
+
+tap_transition_t tap_transitions[16] =
+{
+ {TAP_RESET, TAP_IDLE}, /* TLR */
+ {TAP_IRSELECT, TAP_DRCAPTURE}, /* SDS */
+ {TAP_DREXIT1, TAP_DRSHIFT}, /* CD */
+ {TAP_DREXIT1, TAP_DRSHIFT}, /* SD */
+ {TAP_DRUPDATE, TAP_DRPAUSE}, /* E1D */
+ {TAP_DREXIT2, TAP_DRPAUSE}, /* PD */
+ {TAP_DRUPDATE, TAP_DRSHIFT}, /* E2D */
+ {TAP_DRSELECT, TAP_IDLE}, /* UD */
+ {TAP_DRSELECT, TAP_IDLE}, /* RTI */
+ {TAP_RESET, TAP_IRCAPTURE}, /* SIS */
+ {TAP_IREXIT1, TAP_IRSHIFT}, /* CI */
+ {TAP_IREXIT1, TAP_IRSHIFT}, /* SI */
+ {TAP_IRUPDATE, TAP_IRPAUSE}, /* E1I */
+ {TAP_IREXIT2, TAP_IRPAUSE}, /* PI */
+ {TAP_IRUPDATE, TAP_IRSHIFT}, /* E2I */
+ {TAP_DRSELECT, TAP_IDLE} /* UI */
+};
+
+char* jtag_event_strings[] =
+{
+ "JTAG controller reset (TLR or TRST)"
+};
+
+/* kludge!!!! these are just global variables that the
+ * interface use internally. They really belong
+ * inside the drivers, but we don't want to break
+ * linking the drivers!!!!
+ */
+enum tap_state end_state = TAP_RESET;
+enum tap_state cur_state = TAP_RESET;
+int jtag_trst = 0;
+int jtag_srst = 0;
+
+jtag_command_t *jtag_command_queue = NULL;
+jtag_command_t **last_comand_pointer = &jtag_command_queue;
+static jtag_tap_t *jtag_all_taps = NULL;
+
+enum reset_types jtag_reset_config = RESET_NONE;
+enum tap_state cmd_queue_end_state = TAP_RESET;
+enum tap_state cmd_queue_cur_state = TAP_RESET;
+
+int jtag_verify_capture_ir = 1;
+
+/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
+int jtag_nsrst_delay = 0; /* default to no nSRST delay */
+int jtag_ntrst_delay = 0; /* default to no nTRST delay */
+
+/* maximum number of JTAG devices expected in the chain
+ */
+#define JTAG_MAX_CHAIN_SIZE 20
+
+/* callbacks to inform high-level handlers about JTAG state changes */
+jtag_event_callback_t *jtag_event_callbacks;
+
+/* speed in kHz*/
+static int speed_khz = 0;
+/* flag if the kHz speed was defined */
+static int hasKHz = 0;
+
+/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
+ */
+
+#if BUILD_ECOSBOARD == 1
+ extern jtag_interface_t zy1000_interface;
+#endif
+
+#if BUILD_PARPORT == 1
+ extern jtag_interface_t parport_interface;
+#endif
+
+#if BUILD_DUMMY == 1
+ extern jtag_interface_t dummy_interface;
+#endif
+
+#if BUILD_FT2232_FTD2XX == 1
+ extern jtag_interface_t ft2232_interface;
+#endif
+
+#if BUILD_FT2232_LIBFTDI == 1
+ extern jtag_interface_t ft2232_interface;
+#endif
+
+#if BUILD_AMTJTAGACCEL == 1
+ extern jtag_interface_t amt_jtagaccel_interface;
+#endif
+
+#if BUILD_EP93XX == 1
+ extern jtag_interface_t ep93xx_interface;
+#endif
+
+#if BUILD_AT91RM9200 == 1
+ extern jtag_interface_t at91rm9200_interface;
+#endif
+
+#if BUILD_GW16012 == 1
+ extern jtag_interface_t gw16012_interface;
+#endif
+
+#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
+ extern jtag_interface_t presto_interface;
+#endif
+
+#if BUILD_USBPROG == 1
+ extern jtag_interface_t usbprog_interface;
+#endif
+
+#if BUILD_JLINK == 1
+ extern jtag_interface_t jlink_interface;
+#endif
+
+jtag_interface_t *jtag_interfaces[] = {
+#if BUILD_ECOSBOARD == 1
+ &zy1000_interface,
+#endif
+#if BUILD_PARPORT == 1
+ &parport_interface,
+#endif
+#if BUILD_DUMMY == 1
+ &dummy_interface,
+#endif
+#if BUILD_FT2232_FTD2XX == 1
+ &ft2232_interface,
+#endif
+#if BUILD_FT2232_LIBFTDI == 1
+ &ft2232_interface,
+#endif
+#if BUILD_AMTJTAGACCEL == 1
+ &amt_jtagaccel_interface,
+#endif
+#if BUILD_EP93XX == 1
+ &ep93xx_interface,
+#endif
+#if BUILD_AT91RM9200 == 1
+ &at91rm9200_interface,
+#endif
+#if BUILD_GW16012 == 1
+ &gw16012_interface,
+#endif
+#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
+ &presto_interface,
+#endif
+#if BUILD_USBPROG == 1
+ &usbprog_interface,
+#endif
+#if BUILD_JLINK == 1
+ &jlink_interface,
+#endif
+ NULL,
+};
+
+jtag_interface_t *jtag = NULL;
+
+/* configuration */
+jtag_interface_t *jtag_interface = NULL;
+int jtag_speed = 0;
+
+
+
+/* forward declarations */
+void jtag_add_pathmove(int num_states, enum tap_state *path);
+void jtag_add_runtest(int num_cycles, enum tap_state endstate);
+void jtag_add_end_state(enum tap_state endstate);
+void jtag_add_sleep(u32 us);
+int jtag_execute_queue(void);
+
+
+/* jtag commands */
+int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
+
+int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+
+jtag_tap_t *jtag_AllTaps(void)
+{
+ return jtag_all_taps;
+};
+
+int
+jtag_NumTotalTaps(void)
+{
+ jtag_tap_t *t;
+ int n;
+
+ n = 0;
+ t = jtag_AllTaps();
+ while(t){
+ n++;
+ t = t->next_tap;
+ }
+ return n;
+}
+
+int
+jtag_NumEnabledTaps(void)
+{
+ jtag_tap_t *t;
+ int n;
+
+ n = 0;
+ t = jtag_AllTaps();
+ while(t){
+ if( t->enabled ){
+ n++;
+ }
+ t = t->next_tap;
+ }
+ return n;
+}
+
+
+jtag_tap_t *jtag_TapByString( const char *s )
+{
+ jtag_tap_t *t;
+ char *cp;
+
+ t = jtag_AllTaps();
+ // try name first
+ while(t){
+ if( 0 == strcmp( t->dotted_name, s ) ){
+ break;
+ } else {
+ t = t->next_tap;
+ }
+ }
+ // backup plan is by number
+ if( t == NULL ){
+ /* ok - is "s" a number? */
+ int n;
+ n = strtol( s, &cp, 0 );
+ if( (s != cp) && (*cp == 0) ){
+ /* Then it is... */
+ t = jtag_TapByAbsPosition(n);
+ }
+ }
+ return t;
+}
+
+jtag_tap_t *
+jtag_TapByJimObj( Jim_Interp *interp, Jim_Obj *o )
+{
+ jtag_tap_t *t;
+ const char *cp;
+
+ cp = Jim_GetString( o, NULL );
+ if(cp == NULL){
+ cp = "(unknown)";
+ t = NULL;
+ } else {
+ t = jtag_TapByString( cp );
+ }
+ if( t == NULL ){
+ Jim_SetResult_sprintf(interp,"Tap: %s is unknown", cp );
+ }
+ return t;
+}
+
+/* returns a pointer to the n-th device in the scan chain */
+jtag_tap_t *
+jtag_TapByAbsPosition( int n )
+{
+ int orig_n;
+ jtag_tap_t *t;
+
+ orig_n = n;
+ t = jtag_AllTaps();
+
+ while( t && (n > 0)) {
+ n--;
+ t = t->next_tap;
+ }
+ return t;
+}
+
+
+int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
+{
+ jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
+
+ if (callback == NULL)
+ {
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ if (*callbacks_p)
+ {
+ while ((*callbacks_p)->next)
+ callbacks_p = &((*callbacks_p)->next);
+ callbacks_p = &((*callbacks_p)->next);
+ }
+
+ (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
+ (*callbacks_p)->callback = callback;
+ (*callbacks_p)->priv = priv;
+ (*callbacks_p)->next = NULL;
+
+ return ERROR_OK;
+}
+
+int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
+{
+ jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
+
+ if (callback == NULL)
+ {
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ while (*callbacks_p)
+ {
+ jtag_event_callback_t **next = &((*callbacks_p)->next);
+ if ((*callbacks_p)->callback == callback)
+ {
+ free(*callbacks_p);
+ *callbacks_p = *next;
+ }
+ callbacks_p = next;
+ }
+
+ return ERROR_OK;
+}
+
+int jtag_call_event_callbacks(enum jtag_event event)
+{
+ jtag_event_callback_t *callback = jtag_event_callbacks;
+
+ LOG_DEBUG("jtag event: %s", jtag_event_strings[event]);
+
+ while (callback)
+ {
+ callback->callback(event, callback->priv);
+ callback = callback->next;
+ }
+
+ return ERROR_OK;
+}
+
+/* returns a pointer to the pointer of the last command in queue
+ * this may be a pointer to the root pointer (jtag_command_queue)
+ * or to the next member of the last but one command
+ */
+jtag_command_t** jtag_get_last_command_p(void)
+{
+/* jtag_command_t *cmd = jtag_command_queue;
+
+ if (cmd)
+ while (cmd->next)
+ cmd = cmd->next;
+ else
+ return &jtag_command_queue;
+
+ return &cmd->next;*/
+
+ return last_comand_pointer;
+}
+
+
+void* cmd_queue_alloc(size_t size)
+{
+ cmd_queue_page_t **p_page = &cmd_queue_pages;
+ int offset;
+ u8 *t;
+
+ /*
+ * WARNING:
+ * We align/round the *SIZE* per below
+ * so that all pointers returned by
+ * this function are reasonably well
+ * aligned.
+ *
+ * If we did not, then an "odd-length" request would cause the
+ * *next* allocation to be at an *odd* address, and because
+ * this function has the same type of api as malloc() - we
+ * must also return pointers that have the same type of
+ * alignment.
+ *
+ * What I do not/have is a reasonable portable means
+ * to align by...
+ *
+ * The solution here, is based on these suggestions.
+ * http://gcc.gnu.org/ml/gcc-help/2008-12/msg00041.html
+ *
+ */
+ union worse_case_align {
+ int i;
+ long l;
+ float f;
+ void *v;
+ };
+#define ALIGN_SIZE (sizeof(union worse_case_align))
+
+ // The alignment process.
+ size = (size + ALIGN_SIZE -1) & (~(ALIGN_SIZE-1));
+ // Done...
+
+
+ if (*p_page)
+ {
+ while ((*p_page)->next)
+ p_page = &((*p_page)->next);
+ if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
+ p_page = &((*p_page)->next);
+ }
+
+ if (!*p_page)
+ {
+ *p_page = malloc(sizeof(cmd_queue_page_t));
+ (*p_page)->used = 0;
+ (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
+ (*p_page)->next = NULL;
+ }
+
+ offset = (*p_page)->used;
+ (*p_page)->used += size;
+
+ t=(u8 *)((*p_page)->address);
+ return t + offset;
+}
+
+void cmd_queue_free(void)
+{
+ cmd_queue_page_t *page = cmd_queue_pages;
+
+ while (page)
+ {
+ cmd_queue_page_t *last = page;
+ free(page->address);
+ page = page->next;
+ free(last);
+ }
+
+ cmd_queue_pages = NULL;
+}
+
+static void jtag_prelude1(void)
+{
+ if (jtag_trst == 1)
+ {
+ LOG_WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ jtag_error=ERROR_JTAG_TRST_ASSERTED;
+ return;
+ }
+
+ if (cmd_queue_end_state == TAP_RESET)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+}
+
+static void jtag_prelude(enum tap_state state)
+{
+ jtag_prelude1();
+
+ if (state != -1)
+ jtag_add_end_state(state);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+}
+
+void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int retval;
+
+ jtag_prelude(state);
+
+ retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+}
+
+int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ jtag_command_t **last_cmd;
+ jtag_tap_t *tap;
+ int j;
+ int x;
+ int nth_tap;
+ int scan_size = 0;
+
+
+ last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for ir scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 1;
+ x = jtag_NumEnabledTaps();
+ (*last_cmd)->cmd.scan->num_fields = x; /* one field per device */
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(x * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = state;
+
+ nth_tap = -1;
+ tap = NULL;
+ for(;;){
+ int found = 0;
+
+ // do this here so it is not forgotten
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ nth_tap++;
+ scan_size = tap->ir_length;
+ (*last_cmd)->cmd.scan->fields[nth_tap].tap = tap;
+ (*last_cmd)->cmd.scan->fields[nth_tap].num_bits = scan_size;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_value = NULL;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = NULL; /* disable verification by default */
+
+ /* search the list */
+ for (j = 0; j < num_fields; j++)
+ {
+ if (tap == fields[j].tap)
+ {
+ found = 1;
+ (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[nth_tap].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+nth_tap, tap->expected, tap->expected_mask, NULL);
+ } else
+ {
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = fields[j].in_handler;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_handler_priv = fields[j].in_handler_priv;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_check_value = tap->expected;
+ (*last_cmd)->cmd.scan->fields[nth_tap].in_check_mask = tap->expected_mask;
+ }
+ }
+
+ tap->bypass = 0;
+ break;
+ }
+ }
+
+ if (!found)
+ {
+ /* if a tap isn't listed, set it to BYPASS */
+ (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[nth_tap].out_mask = NULL;
+ tap->bypass = 1;
+
+ }
+
+ /* update device information */
+ buf_cpy((*last_cmd)->cmd.scan->fields[nth_tap].out_value, tap->cur_instr, scan_size);
+ }
+
+ return ERROR_OK;
+}
+
+void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int retval;
+
+ jtag_prelude(state);
+
+ retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+}
+
+int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int i;
+ jtag_command_t **last_cmd;
+
+ last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for ir scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 1;
+ (*last_cmd)->cmd.scan->num_fields = num_fields;
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = state;
+
+ for( i = 0 ; i < num_fields ; i++ ){
+ int num_bits = fields[i].num_bits;
+ int num_bytes = CEIL(fields[i].num_bits, 8);
+ (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap;
+ (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
+ (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
+ }
+ return ERROR_OK;
+}
+
+void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int retval;
+
+ jtag_prelude(state);
+
+ retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+}
+
+int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int j;
+ int nth_tap;
+ int bypass_devices = 0;
+ int field_count = 0;
+ int scan_size;
+
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+ jtag_tap_t *tap;
+
+ /* count devices in bypass */
+ tap = NULL;
+ bypass_devices = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ if( tap->bypass ){
+ bypass_devices++;
+ }
+ }
+
+ /* 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;
+
+ tap = NULL;
+ nth_tap = -1;
+ for(;;){
+ nth_tap++;
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ int found = 0;
+ (*last_cmd)->cmd.scan->fields[field_count].tap = tap;
+
+ for (j = 0; j < num_fields; j++)
+ {
+ if (tap == fields[j].tap)
+ {
+ found = 1;
+ scan_size = fields[j].num_bits;
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
+ }
+ }
+ if (!found)
+ {
+#ifdef _DEBUG_JTAG_IO_
+ /* if a device isn't listed, the BYPASS register should be selected */
+ if (! tap->bypass)
+ {
+ LOG_ERROR("BUG: no scan data for a device not in BYPASS");
+ exit(-1);
+ }
+#endif
+ /* program the scan field to 1 bit length, and ignore it's value */
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
+ }
+ else
+ {
+#ifdef _DEBUG_JTAG_IO_
+ /* if a device is listed, the BYPASS register must not be selected */
+ if (tap->bypass)
+ {
+ LOG_ERROR("BUG: scan data for a device in BYPASS");
+ exit(-1);
+ }
+#endif
+ }
+ }
+ return ERROR_OK;
+}
+
+void MINIDRIVER(interface_jtag_add_dr_out)(jtag_tap_t *target_tap,
+ int num_fields,
+ const int *num_bits,
+ const u32 *value,
+ enum tap_state end_state)
+{
+ int nth_tap;
+ int field_count = 0;
+ int scan_size;
+ int bypass_devices = 0;
+
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+ jtag_tap_t *tap;
+
+ /* count devices in bypass */
+ tap = NULL;
+ bypass_devices = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ if( tap->bypass ){
+ bypass_devices++;
+ }
+ }
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for dr scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 0;
+ (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = end_state;
+
+ tap = NULL;
+ nth_tap = -1;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ nth_tap++;
+ (*last_cmd)->cmd.scan->fields[field_count].tap = tap;
+
+ if (tap == target_tap)
+ {
+ int j;
+#ifdef _DEBUG_JTAG_IO_
+ /* if a device is listed, the BYPASS register must not be selected */
+ if (tap->bypass)
+ {
+ LOG_ERROR("BUG: scan data for a device in BYPASS");
+ exit(-1);
+ }
+#endif
+ for (j = 0; j < num_fields; j++)
+ {
+ u8 out_value[4];
+ scan_size = num_bits[j];
+ buf_set_u32(out_value, 0, scan_size, value[j]);
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
+ }
+ } else
+ {
+#ifdef _DEBUG_JTAG_IO_
+ /* if a device isn't listed, the BYPASS register should be selected */
+ if (! tap->bypass)
+ {
+ LOG_ERROR("BUG: no scan data for a device not in BYPASS");
+ exit(-1);
+ }
+#endif
+ /* program the scan field to 1 bit length, and ignore it's value */
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
+ }
+ }
+}
+
+void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int retval;
+
+ jtag_prelude(state);
+
+ retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+}
+
+int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int i;
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 0;
+ (*last_cmd)->cmd.scan->num_fields = num_fields;
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = state;
+
+ for (i = 0; i < num_fields; i++)
+ {
+ int num_bits = fields[i].num_bits;
+ int num_bytes = CEIL(fields[i].num_bits, 8);
+ (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap;
+ (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
+ (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
+ }
+
+ return ERROR_OK;
+}
+
+void jtag_add_tlr(void)
+{
+ jtag_prelude(TAP_RESET);
+
+ int retval;
+ retval=interface_jtag_add_tlr();
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+}
+
+int MINIDRIVER(interface_jtag_add_tlr)()
+{
+ enum tap_state state = TAP_RESET;
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_STATEMOVE;
+
+ (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
+ (*last_cmd)->cmd.statemove->end_state = state;
+
+
+ return ERROR_OK;
+}
+
+void jtag_add_pathmove(int num_states, enum tap_state *path)
+{
+ enum tap_state cur_state=cmd_queue_cur_state;
+ int i;
+ int retval;
+
+ /* the last state has to be a stable state */
+ if (tap_move_map[path[num_states - 1]] == -1)
+ {
+ LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
+ exit(-1);
+ }
+
+ for (i=0; i<num_states; i++)
+ {
+ if (path[i] == TAP_RESET)
+ {
+ LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
+ exit(-1);
+ }
+ if ((tap_transitions[cur_state].low != path[i])&&
+ (tap_transitions[cur_state].high != path[i]))
+ {
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[i]]);
+ exit(-1);
+ }
+ cur_state = path[i];
+ }
+
+ jtag_prelude1();
+
+
+ retval=interface_jtag_add_pathmove(num_states, path);
+ cmd_queue_cur_state = path[num_states - 1];
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+}
+
+int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+ int i;
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_PATHMOVE;
+
+ (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
+ (*last_cmd)->cmd.pathmove->num_states = num_states;
+ (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
+
+ for (i = 0; i < num_states; i++)
+ (*last_cmd)->cmd.pathmove->path[i] = path[i];
+
+ return ERROR_OK;
+}
+
+int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_RUNTEST;
+
+ (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
+ (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
+ (*last_cmd)->cmd.runtest->end_state = state;
+
+ return ERROR_OK;
+}
+
+void jtag_add_runtest(int num_cycles, enum tap_state state)
+{
+ int retval;
+
+ jtag_prelude(state);
+
+ /* executed by sw or hw fifo */
+ retval=interface_jtag_add_runtest(num_cycles, cmd_queue_end_state);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+}
+
+void jtag_add_reset(int req_tlr_or_trst, int req_srst)
+{
+ int trst_with_tlr = 0;
+ int retval;
+
+ /* FIX!!! there are *many* different cases here. A better
+ * approach is needed for legal combinations of transitions...
+ */
+ if ((jtag_reset_config & RESET_HAS_SRST)&&
+ (jtag_reset_config & RESET_HAS_TRST)&&
+ ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0))
+ {
+ if (((req_tlr_or_trst&&!jtag_trst)||
+ (!req_tlr_or_trst&&jtag_trst))&&
+ ((req_srst&&!jtag_srst)||
+ (!req_srst&&jtag_srst)))
+ {
+ /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */
+ //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined");
+ }
+ }
+
+ /* Make sure that jtag_reset_config allows the requested reset */
+ /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
+ if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst))
+ {
+ LOG_ERROR("BUG: requested reset would assert trst");
+ jtag_error=ERROR_FAIL;
+ return;
+ }
+
+ /* if TRST pulls SRST, we reset with TAP T-L-R */
+ if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0))
+ {
+ trst_with_tlr = 1;
+ }
+
+ if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
+ {
+ LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this");
+ jtag_error=ERROR_FAIL;
+ return;
+ }
+
+ if (req_tlr_or_trst)
+ {
+ if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST))
+ {
+ jtag_trst = 1;
+ } else
+ {
+ trst_with_tlr = 1;
+ }
+ } else
+ {
+ jtag_trst = 0;
+ }
+
+ jtag_srst = req_srst;
+
+ retval = interface_jtag_add_reset(jtag_trst, jtag_srst);
+ if (retval!=ERROR_OK)
+ {
+ jtag_error=retval;
+ return;
+ }
+
+ if (jtag_srst)
+ {
+ LOG_DEBUG("SRST line asserted");
+ }
+ else
+ {
+ LOG_DEBUG("SRST line released");
+ if (jtag_nsrst_delay)
+ jtag_add_sleep(jtag_nsrst_delay * 1000);
+ }
+
+ if (trst_with_tlr)
+ {
+ LOG_DEBUG("JTAG reset with TLR instead of TRST");
+ jtag_add_end_state(TAP_RESET);
+ jtag_add_tlr();
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+ return;
+ }
+
+ if (jtag_trst)
+ {
+ /* we just asserted nTRST, so we're now in Test-Logic-Reset,
+ * and inform possible listeners about this
+ */
+ LOG_DEBUG("TRST line asserted");
+ cmd_queue_cur_state = TAP_RESET;
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+ }
+ else
+ {
+ if (jtag_ntrst_delay)
+ jtag_add_sleep(jtag_ntrst_delay * 1000);
+ }
+}
+
+int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_RESET;
+
+ (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
+ (*last_cmd)->cmd.reset->trst = req_trst;
+ (*last_cmd)->cmd.reset->srst = req_srst;
+
+ return ERROR_OK;
+}
+
+void jtag_add_end_state(enum tap_state state)
+{
+ cmd_queue_end_state = state;
+ if ((cmd_queue_end_state == TAP_DRSHIFT)||(cmd_queue_end_state == TAP_IRSHIFT))
+ {
+ LOG_ERROR("BUG: TAP_DRSHIFT/SI can't be end state. Calling code should use a larger scan field");
+ }
+}
+
+int MINIDRIVER(interface_jtag_add_sleep)(u32 us)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_SLEEP;
+
+ (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
+ (*last_cmd)->cmd.sleep->us = us;
+
+ return ERROR_OK;
+}
+
+void jtag_add_sleep(u32 us)
+{
+ keep_alive(); /* we might be running on a very slow JTAG clk */
+ int retval=interface_jtag_add_sleep(us);
+ if (retval!=ERROR_OK)
+ jtag_error=retval;
+ return;
+}
+
+int jtag_scan_size(scan_command_t *cmd)
+{
+ int bit_count = 0;
+ int i;
+
+ /* count bits in scan command */
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ bit_count += cmd->fields[i].num_bits;
+ }
+
+ return bit_count;
+}
+
+int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
+{
+ int bit_count = 0;
+ int i;
+
+ bit_count = jtag_scan_size(cmd);
+ *buffer = malloc(CEIL(bit_count, 8));
+
+ bit_count = 0;
+
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ if (cmd->fields[i].out_value)
+ {
+#ifdef _DEBUG_JTAG_IO_
+ char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
+#endif
+ buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
+ free(char_buf);
+#endif
+ }
+
+ bit_count += cmd->fields[i].num_bits;
+ }
+
+ return bit_count;
+}
+
+int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
+{
+ int i;
+ int bit_count = 0;
+ int retval;
+
+ /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
+ retval = ERROR_OK;
+
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ /* if neither in_value nor in_handler
+ * are specified we don't have to examine this field
+ */
+ if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
+ {
+ int num_bits = cmd->fields[i].num_bits;
+ u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
+
+#ifdef _DEBUG_JTAG_IO_
+ char *char_buf;
+
+ char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
+ LOG_DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
+ free(char_buf);
+#endif
+
+ if (cmd->fields[i].in_value)
+ {
+ buf_cpy(captured, cmd->fields[i].in_value, num_bits);
+
+ if (cmd->fields[i].in_handler)
+ {
+ if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
+ {
+ LOG_WARNING("in_handler reported a failed check");
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ }
+ }
+ }
+
+ /* no in_value specified, but a handler takes care of the scanned data */
+ if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
+ {
+ if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
+ {
+ /* We're going to call the error:handler later, but if the in_handler
+ * reported an error we report this failure upstream
+ */
+ LOG_WARNING("in_handler reported a failed check");
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ }
+ }
+
+ free(captured);
+ }
+ bit_count += cmd->fields[i].num_bits;
+ }
+
+ return retval;
+}
+
+int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
+{
+ int retval = ERROR_OK;
+ int num_bits = field->num_bits;
+
+ int compare_failed = 0;
+
+ if (field->in_check_mask)
+ compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
+ else
+ compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
+
+ if (compare_failed){
+ /* An error handler could have caught the failing check
+ * only report a problem when there wasn't a handler, or if the handler
+ * acknowledged the error
+ */
+ LOG_WARNING("TAP %s:",
+ (field->tap == NULL) ? "(unknown)" : field->tap->dotted_name );
+ if (compare_failed)
+ {
+ char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
+ char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
+
+ if (field->in_check_mask)
+ {
+ char *in_check_mask_char;
+ in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
+ LOG_WARNING("value captured during scan didn't pass the requested check:");
+ LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s",
+ captured_char, in_check_value_char, in_check_mask_char);
+ free(in_check_mask_char);
+ }
+ else
+ {
+ LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
+ }
+
+ free(captured_char);
+ free(in_check_value_char);
+
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ }
+
+ }
+ return retval;
+}
+
+/*
+ set up checking of this field using the in_handler. The values passed in must be valid until
+ after jtag_execute() has completed.
+ */
+void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
+{
+ if (value)
+ field->in_handler = jtag_check_value;
+ else
+ field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
+ field->in_handler_priv = NULL;
+ field->in_check_value = value;
+ field->in_check_mask = mask;
+}
+
+enum scan_type jtag_scan_type(scan_command_t *cmd)
+{
+ int i;
+ int type = 0;
+
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
+ type |= SCAN_IN;
+ if (cmd->fields[i].out_value)
+ type |= SCAN_OUT;
+ }
+
+ return type;
+}
+
+int MINIDRIVER(interface_jtag_execute_queue)(void)
+{
+ int retval;
+
+ if (jtag==NULL)
+ {
+ LOG_ERROR("No JTAG interface configured yet. Issue 'init' command in startup scripts before communicating with targets.");
+ return ERROR_FAIL;
+ }
+
+ retval = jtag->execute_queue();
+
+ cmd_queue_free();
+
+ jtag_command_queue = NULL;
+ last_comand_pointer = &jtag_command_queue;
+
+ return retval;
+}
+
+int jtag_execute_queue(void)
+{
+ int retval=interface_jtag_execute_queue();
+ if (retval==ERROR_OK)
+ {
+ retval=jtag_error;
+ }
+ jtag_error=ERROR_OK;
+ return retval;
+}
+
+int jtag_reset_callback(enum jtag_event event, void *priv)
+{
+ jtag_tap_t *tap = priv;
+
+ LOG_DEBUG("-");
+
+ if (event == JTAG_TRST_ASSERTED)
+ {
+ buf_set_ones(tap->cur_instr, tap->ir_length);
+ tap->bypass = 1;
+ }
+
+ return ERROR_OK;
+}
+
+void jtag_sleep(u32 us)
+{
+ alive_sleep(us/1000);
+}
+
+/* Try to examine chain layout according to IEEE 1149.1 §12
+ */
+int jtag_examine_chain(void)
+{
+ jtag_tap_t *tap;
+ 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.tap = NULL;
+ 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_RESET);
+ jtag_execute_queue();
+
+ for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
+ {
+ zero_check |= idcode_buffer[i];
+ one_check &= idcode_buffer[i];
+ }
+
+ /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
+ if ((zero_check == 0x00) || (one_check == 0xff))
+ {
+ LOG_ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ // point at the 1st tap
+ tap = jtag_NextEnabledTap(NULL);
+ if( tap == NULL ){
+ LOG_ERROR("JTAG: No taps enabled?");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
+ {
+ u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
+ if ((idcode & 1) == 0)
+ {
+ /* LSB must not be 0, this indicates a device in bypass */
+ LOG_WARNING("Tap/Device does not have IDCODE");
+ idcode=0;
+
+ bit_count += 1;
+ }
+ else
+ {
+ u32 manufacturer;
+ u32 part;
+ u32 version;
+
+ if (idcode == 0x000000FF)
+ {
+ int unexpected=0;
+ /* End of chain (invalid manufacturer ID)
+ *
+ * The JTAG examine is the very first thing that happens
+ *
+ * A single JTAG device requires only 64 bits to be read back correctly.
+ *
+ * The code below adds a check that the rest of the data scanned (640 bits)
+ * are all as expected. This helps diagnose/catch problems with the JTAG chain
+ *
+ * earlier and gives more helpful/explicit error messages.
+ */
+ for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32)
+ {
+ idcode = buf_get_u32(idcode_buffer, bit_count, 32);
+ if (unexpected||(idcode != 0x000000FF))
+ {
+ LOG_WARNING("Unexpected idcode after end of chain! %d 0x%08x", bit_count, idcode);
+ unexpected = 1;
+ }
+ }
+
+ break;
+ }
+
+#define EXTRACT_MFG(X) (((X) & 0xffe) >> 1)
+ manufacturer = EXTRACT_MFG(idcode);
+#define EXTRACT_PART(X) (((X) & 0xffff000) >> 12)
+ part = EXTRACT_PART(idcode);
+#define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28)
+ version = EXTRACT_VER(idcode);
+
+ LOG_INFO("JTAG tap: %s tap/device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
+ ((tap != NULL) ? (tap->dotted_name) : "(not-named)"),
+ idcode, manufacturer, part, version);
+
+ bit_count += 32;
+ }
+ if (tap)
+ {
+ tap->idcode = idcode;
+
+ if (tap->expected_ids_cnt > 0) {
+ /* Loop over the expected identification codes and test for a match */
+ u8 ii;
+ for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
+ if( tap->idcode == tap->expected_ids[ii] ){
+ break;
+ }
+ }
+
+ /* If none of the expected ids matched, log an error */
+ if (ii == tap->expected_ids_cnt) {
+ LOG_ERROR("JTAG tap: %s got: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
+ tap->dotted_name,
+ idcode,
+ EXTRACT_MFG( tap->idcode ),
+ EXTRACT_PART( tap->idcode ),
+ EXTRACT_VER( tap->idcode ) );
+ for (ii = 0; ii < tap->expected_ids_cnt; ii++) {
+ LOG_ERROR("JTAG tap: %s expected %hhu of %hhu: 0x%08x (mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)",
+ tap->dotted_name,
+ ii + 1,
+ tap->expected_ids_cnt,
+ tap->expected_ids[ii],
+ EXTRACT_MFG( tap->expected_ids[ii] ),
+ EXTRACT_PART( tap->expected_ids[ii] ),
+ EXTRACT_VER( tap->expected_ids[ii] ) );
+ }
+
+ return ERROR_JTAG_INIT_FAILED;
+ } else {
+ LOG_INFO("JTAG Tap/device matched");
+ }
+ } else {
+#if 0
+ LOG_INFO("JTAG TAP ID: 0x%08x - Unknown - please report (A) chipname and (B) idcode to the openocd project",
+ tap->idcode);
+#endif
+ }
+ tap = jtag_NextEnabledTap(tap);
+ }
+ device_count++;
+ }
+
+ /* see if number of discovered devices matches configuration */
+ if (device_count != jtag_NumEnabledTaps())
+ {
+ LOG_ERROR("number of discovered devices in JTAG chain (%i) doesn't match (enabled) configuration (%i), total taps: %d",
+ device_count, jtag_NumEnabledTaps(), jtag_NumTotalTaps());
+ LOG_ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+int jtag_validate_chain(void)
+{
+ jtag_tap_t *tap;
+ int total_ir_length = 0;
+ u8 *ir_test = NULL;
+ scan_field_t field;
+ int chain_pos = 0;
+
+ tap = NULL;
+ total_ir_length = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+ total_ir_length += tap->ir_length;
+ }
+
+ total_ir_length += 2;
+ ir_test = malloc(CEIL(total_ir_length, 8));
+ buf_set_ones(ir_test, total_ir_length);
+
+ field.tap = NULL;
+ 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_RESET);
+ jtag_execute_queue();
+
+ tap = NULL;
+ chain_pos = 0;
+ for(;;){
+ tap = jtag_NextEnabledTap(tap);
+ if( tap == NULL ){
+ break;
+ }
+
+
+ if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
+ {
+ char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
+ LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
+ free(cbuf);
+ free(ir_test);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ chain_pos += tap->ir_length;
+ }
+
+ if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
+ {
+ char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
+ LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
+ free(cbuf);
+ free(ir_test);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ free(ir_test);
+
+ return ERROR_OK;
+}
+
+
+static int
+jim_newtap_cmd( Jim_GetOptInfo *goi )
+{
+ jtag_tap_t *pTap;
+ jtag_tap_t **ppTap;
+ jim_wide w;
+ int x;
+ int e;
+ int reqbits;
+ Jim_Nvp *n;
+ char *cp;
+ const Jim_Nvp opts[] = {
+#define NTAP_OPT_IRLEN 0
+ { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
+#define NTAP_OPT_IRMASK 1
+ { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
+#define NTAP_OPT_IRCAPTURE 2
+ { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
+#define NTAP_OPT_ENABLED 3
+ { .name = "-enable" , .value = NTAP_OPT_ENABLED },
+#define NTAP_OPT_DISABLED 4
+ { .name = "-disable" , .value = NTAP_OPT_DISABLED },
+#define NTAP_OPT_EXPECTED_ID 5
+ { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
+ { .name = NULL , .value = -1 },
+ };
+
+
+ pTap = malloc( sizeof(jtag_tap_t) );
+ memset( pTap, 0, sizeof(*pTap) );
+ if( !pTap ){
+ Jim_SetResult_sprintf( goi->interp, "no memory");
+ return JIM_ERR;
+ }
+ //
+ // we expect CHIP + TAP + OPTIONS
+ //
+ if( goi->argc < 3 ){
+ Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
+ return JIM_ERR;
+ }
+ Jim_GetOpt_String( goi, &cp, NULL );
+ pTap->chip = strdup(cp);
+
+ Jim_GetOpt_String( goi, &cp, NULL );
+ pTap->tapname = strdup(cp);
+
+ // name + dot + name + null
+ x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
+ cp = malloc( x );
+ sprintf( cp, "%s.%s", pTap->chip, pTap->tapname );
+ pTap->dotted_name = cp;
+
+ LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
+ pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
+
+
+ // default is enabled
+ pTap->enabled = 1;
+
+ // deal with options
+#define NTREQ_IRLEN 1
+#define NTREQ_IRCAPTURE 2
+#define NTREQ_IRMASK 4
+
+ // clear them as we find them
+ reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK);
+
+ while( goi->argc ){
+ e = Jim_GetOpt_Nvp( goi, opts, &n );
+ if( e != JIM_OK ){
+ Jim_GetOpt_NvpUnknown( goi, opts, 0 );
+ return e;
+ }
+ LOG_DEBUG("Processing option: %s", n->name );
+ switch( n->value ){
+ case NTAP_OPT_ENABLED:
+ pTap->enabled = 1;
+ break;
+ case NTAP_OPT_DISABLED:
+ pTap->enabled = 0;
+ break;
+ case NTAP_OPT_EXPECTED_ID:
+ {
+ u32 *new_expected_ids;
+
+ e = Jim_GetOpt_Wide( goi, &w );
+ if( e != JIM_OK) {
+ Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
+ return e;
+ }
+
+ new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1));
+ if (new_expected_ids == NULL) {
+ Jim_SetResult_sprintf( goi->interp, "no memory");
+ return JIM_ERR;
+ }
+
+ memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt);
+
+ new_expected_ids[pTap->expected_ids_cnt] = w;
+
+ free(pTap->expected_ids);
+ pTap->expected_ids = new_expected_ids;
+ pTap->expected_ids_cnt++;
+ break;
+ }
+ case NTAP_OPT_IRLEN:
+ case NTAP_OPT_IRMASK:
+ case NTAP_OPT_IRCAPTURE:
+ e = Jim_GetOpt_Wide( goi, &w );
+ if( e != JIM_OK ){
+ Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name );
+ return e;
+ }
+ if( (w < 0) || (w > 0xffff) ){
+ // wacky value
+ Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)",
+ n->name, (int)(w), (int)(w));
+ return JIM_ERR;
+ }
+ switch(n->value){
+ case NTAP_OPT_IRLEN:
+ pTap->ir_length = w;
+ reqbits &= (~(NTREQ_IRLEN));
+ break;
+ case NTAP_OPT_IRMASK:
+ pTap->ir_capture_mask = w;
+ reqbits &= (~(NTREQ_IRMASK));
+ break;
+ case NTAP_OPT_IRCAPTURE:
+ pTap->ir_capture_value = w;
+ reqbits &= (~(NTREQ_IRCAPTURE));
+ break;
+ }
+ } // switch(n->value)
+ } // while( goi->argc )
+
+ // Did we get all the options?
+ if( reqbits ){
+ // no
+ Jim_SetResult_sprintf( goi->interp,
+ "newtap: %s missing required parameters",
+ pTap->dotted_name);
+ // fixme: Tell user what is missing :-(
+ // no memory leaks pelase
+ free(((void *)(pTap->expected_ids)));
+ free(((void *)(pTap->chip)));
+ free(((void *)(pTap->tapname)));
+ free(((void *)(pTap->dotted_name)));
+ free(((void *)(pTap)));
+ return JIM_ERR;
+ }
+
+ pTap->expected = malloc( pTap->ir_length );
+ pTap->expected_mask = malloc( pTap->ir_length );
+ pTap->cur_instr = malloc( pTap->ir_length );
+
+ buf_set_u32( pTap->expected,
+ 0,
+ pTap->ir_length,
+ pTap->ir_capture_value );
+ buf_set_u32( pTap->expected_mask,
+ 0,
+ pTap->ir_length,
+ pTap->ir_capture_mask );
+ buf_set_ones( pTap->cur_instr,
+ pTap->ir_length );
+
+ pTap->bypass = 1;
+
+
+ jtag_register_event_callback(jtag_reset_callback, pTap );
+
+ ppTap = &(jtag_all_taps);
+ while( (*ppTap) != NULL ){
+ ppTap = &((*ppTap)->next_tap);
+ }
+ *ppTap = pTap;
+ {
+ static int n_taps = 0;
+ pTap->abs_chain_position = n_taps++;
+ }
+ LOG_DEBUG( "Created Tap: %s @ abs position %d, irlen %d, capture: 0x%x mask: 0x%x",
+ (*ppTap)->dotted_name,
+ (*ppTap)->abs_chain_position,
+ (*ppTap)->ir_length,
+ (*ppTap)->ir_capture_value,
+ (*ppTap)->ir_capture_mask );
+
+
+ return ERROR_OK;
+}
+
+
+static int
+jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
+{
+ Jim_GetOptInfo goi;
+ int e;
+ Jim_Nvp *n;
+ struct command_context_s *context;
+
+ enum {
+ JTAG_CMD_INTERFACE,
+ JTAG_CMD_INIT_RESET,
+ JTAG_CMD_NEWTAP,
+ JTAG_CMD_TAPENABLE,
+ JTAG_CMD_TAPDISABLE,
+ JTAG_CMD_TAPISENABLED
+ };
+
+ const Jim_Nvp jtag_cmds[] = {
+ { .name = "interface" , .value = JTAG_CMD_INTERFACE },
+ { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
+ { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
+ { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
+ { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
+ { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
+
+ { .name = NULL, .value = -1 },
+ };
+
+ context = Jim_GetAssocData(interp, "context");
+ // go past the command
+ Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
+
+ e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n );
+ if( e != JIM_OK ){
+ Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 );
+ return e;
+ }
+ Jim_SetEmptyResult( goi.interp );
+ switch( n->value ){
+ case JTAG_CMD_INTERFACE:
+ // return the name of the interface
+ // TCL code might need to know the exact type...
+ // FUTURE: we allow this as a means to "set" the interface.
+ if( goi.argc != 0 ){
+ Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
+ return JIM_ERR;
+ }
+ Jim_SetResultString( goi.interp, jtag_interface->name, -1 );
+ return JIM_OK;
+ case JTAG_CMD_INIT_RESET:
+ if( goi.argc != 0 ){
+ Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)");
+ return JIM_ERR;
+ }
+ e = jtag_init_reset(context);
+ if( e != ERROR_OK ){
+ Jim_SetResult_sprintf( goi.interp, "error: %d", e);
+ return JIM_ERR;
+ }
+ return JIM_OK;
+ case JTAG_CMD_NEWTAP:
+ return jim_newtap_cmd( &goi );
+ break;
+ case JTAG_CMD_TAPISENABLED:
+ case JTAG_CMD_TAPENABLE:
+ case JTAG_CMD_TAPDISABLE:
+ if( goi.argc != 1 ){
+ Jim_SetResultString( goi.interp, "Too many parameters",-1 );
+ return JIM_ERR;
+ }
+
+ {
+ jtag_tap_t *t;
+ t = jtag_TapByJimObj( goi.interp, goi.argv[0] );
+ if( t == NULL ){
+ return JIM_ERR;
+ }
+ switch( n->value ){
+ case JTAG_CMD_TAPISENABLED:
+ // below
+ break;
+ case JTAG_CMD_TAPENABLE:
+ e = 1;
+ t->enabled = e;
+ break;
+ case JTAG_CMD_TAPDISABLE:
+ e = 0;
+ t->enabled = e;
+ break;
+ }
+ Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) );
+ return JIM_OK;
+ }
+ }
+
+
+ return JIM_ERR;
+}
+
+int jtag_register_commands(struct command_context_s *cmd_ctx)
+{
+ register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions");
+
+ register_command(cmd_ctx, NULL, "interface", handle_interface_command,
+ COMMAND_CONFIG, "try to configure interface");
+ register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
+ COMMAND_ANY, "set jtag speed (if supported)");
+ register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command,
+ COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK.");
+ register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
+ COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
+ register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
+ COMMAND_ANY, "jtag_nsrst_delay <ms> - delay after deasserting srst in ms");
+ register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
+ COMMAND_ANY, "jtag_ntrst_delay <ms> - delay after deasserting trst in ms");
+
+ register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
+ COMMAND_EXEC, "print current scan chain configuration");
+
+ register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
+ COMMAND_EXEC, "finish JTAG operations in <tap_state>");
+ register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
+ COMMAND_EXEC, "toggle reset lines <trst> <srst>");
+ register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
+ COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
+ register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
+ COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
+ register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ...");
+
+ register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
+ COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
+ return ERROR_OK;
+}
+
+int jtag_interface_init(struct command_context_s *cmd_ctx)
+{
+ if (jtag)
+ return ERROR_OK;
+
+ if (!jtag_interface)
+ {
+ /* nothing was previously specified by "interface" command */
+ LOG_ERROR("JTAG interface has to be specified, see \"interface\" command");
+ return ERROR_JTAG_INVALID_INTERFACE;
+ }
+ if(hasKHz)
+ {
+ jtag_interface->khz(speed_khz, &jtag_speed);
+ hasKHz = 0;
+ }
+
+ if (jtag_interface->init() != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+
+
+ jtag = jtag_interface;
+ return ERROR_OK;
+}
+
+static int jtag_init_inner(struct command_context_s *cmd_ctx)
+{
+ jtag_tap_t *tap;
+ int retval;
+
+ LOG_DEBUG("Init JTAG chain");
+
+
+ tap = jtag_NextEnabledTap(NULL);
+ if( tap == NULL ){
+ LOG_ERROR("There are no enabled taps?");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ jtag_add_tlr();
+ if ((retval=jtag_execute_queue())!=ERROR_OK)
+ return retval;
+
+ /* examine chain first, as this could discover the real chain layout */
+ if (jtag_examine_chain() != ERROR_OK)
+ {
+ LOG_ERROR("trying to validate configured JTAG chain anyway...");
+ }
+
+ if (jtag_validate_chain() != ERROR_OK)
+ {
+ LOG_ERROR("Could not validate JTAG chain, continuing anyway...");
+ }
+
+ return ERROR_OK;
+}
+
+int jtag_init_reset(struct command_context_s *cmd_ctx)
+{
+ int retval;
+
+ if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
+ return retval;
+
+ LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / TLR");
+
+ /* Reset can happen after a power cycle.
+ *
+ * Ideally we would only assert TRST or run TLR before the target reset.
+ *
+ * However w/srst_pulls_trst, trst is asserted together with the target
+ * reset whether we want it or not.
+ *
+ * NB! Some targets have JTAG circuitry disabled until a
+ * trst & srst has been asserted.
+ *
+ * NB! here we assume nsrst/ntrst delay are sufficient!
+ *
+ * NB! order matters!!!! srst *can* disconnect JTAG circuitry
+ *
+ */
+ jtag_add_reset(1, 0); /* TLR or TRST */
+ if (jtag_reset_config & RESET_HAS_SRST)
+ {
+ jtag_add_reset(1, 1);
+ if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)
+ jtag_add_reset(0, 1);
+ }
+ jtag_add_reset(0, 0);
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
+ return retval;
+
+ /* Check that we can communication on the JTAG chain + eventually we want to
+ * be able to perform enumeration only after OpenOCD has started
+ * telnet and GDB server
+ *
+ * That would allow users to more easily perform any magic they need to before
+ * reset happens.
+ */
+ return jtag_init_inner(cmd_ctx);
+}
+
+int jtag_init(struct command_context_s *cmd_ctx)
+{
+ int retval;
+ if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK)
+ return retval;
+ if (jtag_init_inner(cmd_ctx)==ERROR_OK)
+ {
+ return ERROR_OK;
+ }
+ return jtag_init_reset(cmd_ctx);
+}
+
+static int default_khz(int khz, int *jtag_speed)
+{
+ LOG_ERROR("Translation from khz to jtag_speed not implemented");
+ return ERROR_FAIL;
+}
+
+static int default_speed_div(int speed, int *khz)
+{
+ LOG_ERROR("Translation from jtag_speed to khz not implemented");
+ return ERROR_FAIL;
+}
+
+static int default_power_dropout(int *dropout)
+{
+ *dropout=0; /* by default we can't detect power dropout */
+ return ERROR_OK;
+}
+
+static int default_srst_asserted(int *srst_asserted)
+{
+ *srst_asserted=0; /* by default we can't detect srst asserted */
+ return ERROR_OK;
+}
+
+int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int i;
+ int retval;
+
+ /* check whether the interface is already configured */
+ if (jtag_interface)
+ {
+ LOG_WARNING("Interface already configured, ignoring");
+ return ERROR_OK;
+ }
+
+ /* interface name is a mandatory argument */
+ if (argc < 1 || args[0][0] == '\0')
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ for (i=0; jtag_interfaces[i]; i++)
+ {
+ if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
+ {
+ if ((retval = jtag_interfaces[i]->register_commands(cmd_ctx)) != ERROR_OK)
+ {
+ return retval;
+ }
+
+ jtag_interface = jtag_interfaces[i];
+
+ if (jtag_interface->khz == NULL)
+ {
+ jtag_interface->khz = default_khz;
+ }
+ if (jtag_interface->speed_div == NULL)
+ {
+ jtag_interface->speed_div = default_speed_div;
+ }
+ if (jtag_interface->power_dropout == NULL)
+ {
+ jtag_interface->power_dropout = default_power_dropout;
+ }
+ if (jtag_interface->srst_asserted == NULL)
+ {
+ jtag_interface->srst_asserted = default_srst_asserted;
+ }
+
+ return ERROR_OK;
+ }
+ }
+
+ /* no valid interface was found (i.e. the configuration option,
+ * didn't match one of the compiled-in interfaces
+ */
+ LOG_ERROR("No valid jtag interface found (%s)", args[0]);
+ LOG_ERROR("compiled-in jtag interfaces:");
+ for (i = 0; jtag_interfaces[i]; i++)
+ {
+ LOG_ERROR("%i: %s", i, jtag_interfaces[i]->name);
+ }
+
+ return ERROR_JTAG_INVALID_INTERFACE;
+}
+
+int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int e;
+ char buf[1024];
+ Jim_Obj *newargs[ 10 ];
+ //
+ // CONVERT SYNTAX
+ //
+ // argv[-1] = command
+ // argv[ 0] = ir length
+ // argv[ 1] = ir capture
+ // argv[ 2] = ir mask
+ // argv[ 3] = not actually used by anything but in the docs
+
+ if( argc < 4 ){
+ command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax");
+ return ERROR_OK;
+ }
+ command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax");
+ command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s",
+ args[0],
+ args[1],
+ args[2] );
+ command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundryscan(len5)");
+ command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\"");
+ command_print( cmd_ctx, "jtag newtap stm32 boundry ....., and the tap: \"stm32.boundery\"");
+ command_print( cmd_ctx, "And then refer to the taps by the dotted name.");
+
+
+
+ newargs[0] = Jim_NewStringObj( interp, "jtag", -1 );
+ newargs[1] = Jim_NewStringObj( interp, "newtap", -1 );
+ sprintf( buf, "chip%d", jtag_NumTotalTaps() );
+ newargs[2] = Jim_NewStringObj( interp, buf, -1 );
+ sprintf( buf, "tap%d", jtag_NumTotalTaps() );
+ newargs[3] = Jim_NewStringObj( interp, buf, -1 );
+ newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 );
+ newargs[5] = Jim_NewStringObj( interp, args[0], -1 );
+ newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 );
+ newargs[7] = Jim_NewStringObj( interp, args[1], -1 );
+ newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 );
+ newargs[9] = Jim_NewStringObj( interp, args[2], -1 );
+
+ command_print( cmd_ctx, "NEW COMMAND:");
+ sprintf( buf, "%s %s %s %s %s %s %s %s %s %s",
+ Jim_GetString( newargs[0], NULL ),
+ Jim_GetString( newargs[1], NULL ),
+ Jim_GetString( newargs[2], NULL ),
+ Jim_GetString( newargs[3], NULL ),
+ Jim_GetString( newargs[4], NULL ),
+ Jim_GetString( newargs[5], NULL ),
+ Jim_GetString( newargs[6], NULL ),
+ Jim_GetString( newargs[7], NULL ),
+ Jim_GetString( newargs[8], NULL ),
+ Jim_GetString( newargs[9], NULL ) );
+
+
+
+ e = jim_jtag_command( interp, 10, newargs );
+ if( e != JIM_OK ){
+ command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) );
+ }
+ return e;
+}
+
+
+int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ jtag_tap_t *tap;
+
+ tap = jtag_all_taps;
+ command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
+ command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------");
+
+ while( tap ){
+ u32 expected, expected_mask, cur_instr, ii;
+ expected = buf_get_u32(tap->expected, 0, tap->ir_length);
+ expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
+ cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
+
+ command_print(cmd_ctx,
+ "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
+ tap->abs_chain_position,
+ tap->dotted_name,
+ tap->enabled ? 'Y' : 'n',
+ tap->idcode,
+ (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
+ tap->ir_length,
+ expected,
+ expected_mask,
+ cur_instr);
+
+ for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
+ command_print(cmd_ctx, " | | | | 0x%08x | | | | ",
+ tap->expected_ids[ii]);
+ }
+
+ tap = tap->next_tap;
+ }
+
+ return ERROR_OK;
+}
+
+int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc < 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ if (argc >= 1)
+ {
+ if (strcmp(args[0], "none") == 0)
+ jtag_reset_config = RESET_NONE;
+ else if (strcmp(args[0], "trst_only") == 0)
+ jtag_reset_config = RESET_HAS_TRST;
+ else if (strcmp(args[0], "srst_only") == 0)
+ jtag_reset_config = RESET_HAS_SRST;
+ else if (strcmp(args[0], "trst_and_srst") == 0)
+ jtag_reset_config = RESET_TRST_AND_SRST;
+ else
+ {
+ LOG_ERROR("(1) invalid reset_config argument (%s), defaulting to none", args[0]);
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ if (argc >= 2)
+ {
+ if (strcmp(args[1], "separate") == 0)
+ {
+ /* seperate reset lines - default */
+ } else
+ {
+ if (strcmp(args[1], "srst_pulls_trst") == 0)
+ jtag_reset_config |= RESET_SRST_PULLS_TRST;
+ else if (strcmp(args[1], "trst_pulls_srst") == 0)
+ jtag_reset_config |= RESET_TRST_PULLS_SRST;
+ else if (strcmp(args[1], "combined") == 0)
+ jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
+ else
+ {
+ LOG_ERROR("(2) invalid reset_config argument (%s), defaulting to none", args[1]);
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+ }
+
+ if (argc >= 3)
+ {
+ if (strcmp(args[2], "trst_open_drain") == 0)
+ jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
+ else if (strcmp(args[2], "trst_push_pull") == 0)
+ jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
+ else
+ {
+ LOG_ERROR("(3) invalid reset_config argument (%s) defaulting to none", args[2] );
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ if (argc >= 4)
+ {
+ if (strcmp(args[3], "srst_push_pull") == 0)
+ jtag_reset_config |= RESET_SRST_PUSH_PULL;
+ else if (strcmp(args[3], "srst_open_drain") == 0)
+ jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
+ else
+ {
+ LOG_ERROR("(4) invalid reset_config argument (%s), defaulting to none", args[3]);
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc < 1)
+ {
+ LOG_ERROR("jtag_nsrst_delay <ms> command takes one required argument");
+ exit(-1);
+ }
+ else
+ {
+ jtag_nsrst_delay = strtoul(args[0], NULL, 0);
+ }
+
+ return ERROR_OK;
+}
+
+int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc < 1)
+ {
+ LOG_ERROR("jtag_ntrst_delay <ms> command takes one required argument");
+ exit(-1);
+ }
+ else
+ {
+ jtag_ntrst_delay = strtoul(args[0], NULL, 0);
+ }
+
+ return ERROR_OK;
+}
+
+int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int retval=ERROR_OK;
+
+ if (argc == 1)
+ {
+ LOG_DEBUG("handle jtag speed");
+
+ int cur_speed = 0;
+ cur_speed = jtag_speed = strtoul(args[0], NULL, 0);
+
+ /* this command can be called during CONFIG,
+ * in which case jtag isn't initialized */
+ if (jtag)
+ {
+ retval=jtag->speed(cur_speed);
+ }
+ } else if (argc == 0)
+ {
+ } else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ command_print(cmd_ctx, "jtag_speed: %d", jtag_speed);
+
+ return retval;
+}
+
+int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int retval=ERROR_OK;
+ LOG_DEBUG("handle jtag khz");
+
+ if(argc == 1)
+ {
+ speed_khz = strtoul(args[0], NULL, 0);
+ if (jtag != NULL)
+ {
+ int cur_speed = 0;
+ LOG_DEBUG("have interface set up");
+ int speed_div1;
+ if ((retval=jtag->khz(speed_khz, &speed_div1))!=ERROR_OK)
+ {
+ speed_khz = 0;
+ return retval;
+ }
+
+ cur_speed = jtag_speed = speed_div1;
+
+ retval=jtag->speed(cur_speed);
+ } else
+ {
+ hasKHz = 1;
+ }
+ } else if (argc==0)
+ {
+ } else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (jtag!=NULL)
+ {
+ if ((retval=jtag->speed_div(jtag_speed, &speed_khz))!=ERROR_OK)
+ return retval;
+ }
+
+ if (speed_khz==0)
+ {
+ command_print(cmd_ctx, "RCLK - adaptive");
+ } else
+ {
+ command_print(cmd_ctx, "%d kHz", speed_khz);
+ }
+ return retval;
+
+}
+
+int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ enum tap_state state;
+
+ if (argc < 1)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ else
+ {
+ for (state = 0; state < 16; state++)
+ {
+ if (strcmp(args[0], tap_state_strings[state]) == 0)
+ {
+ jtag_add_end_state(state);
+ jtag_execute_queue();
+ }
+ }
+ }
+ command_print(cmd_ctx, "current endstate: %s", tap_state_strings[cmd_queue_end_state]);
+
+ return ERROR_OK;
+}
+
+int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int trst = -1;
+ int srst = -1;
+
+ if (argc < 2)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (args[0][0] == '1')
+ trst = 1;
+ else if (args[0][0] == '0')
+ trst = 0;
+ else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (args[1][0] == '1')
+ srst = 1;
+ else if (args[1][0] == '0')
+ srst = 0;
+ else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (jtag_interface_init(cmd_ctx) != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ jtag_add_reset(trst, srst);
+ jtag_execute_queue();
+
+ return ERROR_OK;
+}
+
+int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc < 1)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ jtag_add_runtest(strtol(args[0], NULL, 0), -1);
+ jtag_execute_queue();
+
+ return ERROR_OK;
+
+}
+
+int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int i;
+ scan_field_t *fields;
+ jtag_tap_t *tap;
+
+ 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++)
+ {
+ tap = jtag_TapByString( args[i*2] );
+ if (tap==NULL)
+ {
+ command_print( cmd_ctx, "Tap: %s unknown", args[i*2] );
+ return ERROR_FAIL;
+ }
+ int field_size = tap->ir_length;
+ fields[i].tap = tap;
+ fields[i].out_value = malloc(CEIL(field_size, 8));
+ buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
+ fields[i].out_mask = NULL;
+ fields[i].in_value = NULL;
+ fields[i].in_check_mask = NULL;
+ fields[i].in_handler = NULL;
+ fields[i].in_handler_priv = NULL;
+ }
+
+ jtag_add_ir_scan(argc / 2, fields, -1);
+ jtag_execute_queue();
+
+ for (i = 0; i < argc / 2; i++)
+ free(fields[i].out_value);
+
+ free (fields);
+
+ return ERROR_OK;
+}
+
+int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
+{
+ int retval;
+ scan_field_t *fields;
+ int num_fields;
+ int field_count = 0;
+ int i, e;
+ jtag_tap_t *tap;
+
+ /* args[1] = device
+ * args[2] = num_bits
+ * args[3] = hex string
+ * ... repeat num bits and hex string ...
+ */
+ if ((argc < 4) || ((argc % 2)!=0))
+ {
+ Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
+ return JIM_ERR;
+ }
+
+ for (i = 2; i < argc; i+=2)
+ {
+ long bits;
+
+ e = Jim_GetLong(interp, args[i], &bits);
+ if (e != JIM_OK)
+ return e;
+ }
+
+ tap = jtag_TapByJimObj( interp, args[1] );
+ if( tap == NULL ){
+ return JIM_ERR;
+ }
+
+ num_fields=(argc-2)/2;
+ fields = malloc(sizeof(scan_field_t) * num_fields);
+ for (i = 2; i < argc; i+=2)
+ {
+ long bits;
+ int len;
+ const char *str;
+
+ Jim_GetLong(interp, args[i], &bits);
+ str = Jim_GetString(args[i+1], &len);
+
+
+ fields[field_count].tap = tap;
+ fields[field_count].num_bits = bits;
+ fields[field_count].out_value = malloc(CEIL(bits, 8));
+ str_to_buf(str, len, fields[field_count].out_value, bits, 0);
+ fields[field_count].out_mask = NULL;
+ fields[field_count].in_value = fields[field_count].out_value;
+ fields[field_count].in_check_mask = NULL;
+ fields[field_count].in_check_value = NULL;
+ fields[field_count].in_handler = NULL;
+ fields[field_count++].in_handler_priv = NULL;
+ }
+
+ jtag_add_dr_scan(num_fields, fields, -1);
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ {
+ Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
+ return JIM_ERR;
+ }
+
+ field_count=0;
+ Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
+ for (i = 2; i < argc; i+=2)
+ {
+ long bits;
+ char *str;
+
+ Jim_GetLong(interp, args[i], &bits);
+ str = buf_to_str(fields[field_count].in_value, bits, 16);
+ free(fields[field_count].out_value);
+
+ Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
+ free(str);
+ field_count++;
+ }
+
+ Jim_SetResult(interp, list);
+
+ free(fields);
+
+ return JIM_OK;
+}
+
+int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc == 1)
+ {
+ if (strcmp(args[0], "enable") == 0)
+ {
+ jtag_verify_capture_ir = 1;
+ }
+ else if (strcmp(args[0], "disable") == 0)
+ {
+ jtag_verify_capture_ir = 0;
+ } else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ } else if (argc != 0)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
+
+ return ERROR_OK;
+}
+
+
+int jtag_power_dropout(int *dropout)
+{
+ return jtag->power_dropout(dropout);
+}
+
+int jtag_srst_asserted(int *srst_asserted)
+{
+ return jtag->srst_asserted(srst_asserted);
+}
+