-/***************************************************************************\r
- * Copyright (C) 2005 by Dominic Rath *\r
- * Dominic.Rath@gmx.de *\r
- * *\r
- * This program is free software; you can redistribute it and/or modify *\r
- * it under the terms of the GNU General Public License as published by *\r
- * the Free Software Foundation; either version 2 of the License, or *\r
- * (at your option) any later version. *\r
- * *\r
- * This program is distributed in the hope that it will be useful, *\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *\r
- * GNU General Public License for more details. *\r
- * *\r
- * You should have received a copy of the GNU General Public License *\r
- * along with this program; if not, write to the *\r
- * Free Software Foundation, Inc., *\r
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *\r
- ***************************************************************************/\r
-#ifdef HAVE_CONFIG_H\r
-#include "config.h"\r
-#endif\r
-\r
-#include "replacements.h"\r
-\r
-#include "jtag.h"\r
-\r
-#include "command.h"\r
-#include "log.h"\r
-#include "interpreter.h"\r
-\r
-#include "stdlib.h"\r
-#include "string.h"\r
-#include <unistd.h>\r
-\r
-char* tap_state_strings[16] =\r
-{\r
- "tlr", \r
- "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",\r
- "rti",\r
- "sis", "ci", "si", "e1i", "pi", "e2i", "ui"\r
-};\r
-\r
-typedef struct cmd_queue_page_s\r
-{\r
- void *address;\r
- size_t used;\r
- struct cmd_queue_page_s *next;\r
-} cmd_queue_page_t;\r
-\r
-#define CMD_QUEUE_PAGE_SIZE (1024 * 1024)\r
-static cmd_queue_page_t *cmd_queue_pages = NULL;\r
-\r
-/* tap_move[i][j]: tap movement command to go from state i to state j\r
- * 0: Test-Logic-Reset\r
- * 1: Run-Test/Idle\r
- * 2: Shift-DR\r
- * 3: Pause-DR\r
- * 4: Shift-IR\r
- * 5: Pause-IR\r
- * \r
- * SD->SD and SI->SI have to be caught in interface specific code\r
- */\r
-u8 tap_move[6][6] =\r
-{\r
-/* TLR RTI SD PD SI PI */\r
- {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */\r
- {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */\r
- {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */\r
- {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */\r
- {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */\r
- {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */\r
-};\r
-\r
-int tap_move_map[16] = {\r
- 0, -1, -1, 2, -1, 3, -1, -1,\r
- 1, -1, -1, 4, -1, 5, -1, -1\r
-};\r
-\r
-tap_transition_t tap_transitions[16] =\r
-{\r
- {TAP_TLR, TAP_RTI}, /* TLR */\r
- {TAP_SIS, TAP_CD}, /* SDS */\r
- {TAP_E1D, TAP_SD}, /* CD */\r
- {TAP_E1D, TAP_SD}, /* SD */\r
- {TAP_UD, TAP_PD}, /* E1D */\r
- {TAP_E2D, TAP_PD}, /* PD */\r
- {TAP_UD, TAP_SD}, /* E2D */\r
- {TAP_SDS, TAP_RTI}, /* UD */\r
- {TAP_SDS, TAP_RTI}, /* RTI */\r
- {TAP_TLR, TAP_CI}, /* SIS */\r
- {TAP_E1I, TAP_SI}, /* CI */\r
- {TAP_E1I, TAP_SI}, /* SI */\r
- {TAP_UI, TAP_PI}, /* E1I */\r
- {TAP_E2I, TAP_PI}, /* PI */\r
- {TAP_UI, TAP_SI}, /* E2I */\r
- {TAP_SDS, TAP_RTI} /* UI */\r
-};\r
-\r
-char* jtag_event_strings[] =\r
-{\r
- "SRST asserted",\r
- "TRST asserted",\r
- "SRST released",\r
- "TRST released"\r
-};\r
-\r
-enum tap_state end_state = TAP_TLR;\r
-enum tap_state cur_state = TAP_TLR;\r
-int jtag_trst = 0;\r
-int jtag_srst = 0;\r
-\r
-jtag_command_t *jtag_command_queue = NULL;\r
-jtag_command_t **last_comand_pointer = &jtag_command_queue;\r
-jtag_device_t *jtag_devices = NULL;\r
-int jtag_num_devices = 0;\r
-int jtag_ir_scan_size = 0;\r
-enum reset_types jtag_reset_config = RESET_NONE;\r
-enum tap_state cmd_queue_end_state = TAP_TLR;\r
-enum tap_state cmd_queue_cur_state = TAP_TLR;\r
-\r
-int jtag_verify_capture_ir = 1;\r
-\r
-/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */\r
-int jtag_nsrst_delay = 0; /* default to no nSRST delay */\r
-int jtag_ntrst_delay = 0; /* default to no nTRST delay */ \r
-\r
-/* maximum number of JTAG devices expected in the chain\r
- */\r
-#define JTAG_MAX_CHAIN_SIZE 20 \r
-\r
-/* callbacks to inform high-level handlers about JTAG state changes */\r
-jtag_event_callback_t *jtag_event_callbacks;\r
-\r
-/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)\r
- */\r
-#if BUILD_PARPORT == 1\r
- extern jtag_interface_t parport_interface;\r
-#endif\r
-\r
-#if BUILD_FT2232_FTD2XX == 1\r
- extern jtag_interface_t ft2232_interface;\r
-#endif\r
-\r
-#if BUILD_FT2232_LIBFTDI == 1\r
- extern jtag_interface_t ft2232_interface;\r
-#endif\r
-\r
-#if BUILD_AMTJTAGACCEL == 1\r
- extern jtag_interface_t amt_jtagaccel_interface;\r
-#endif\r
-\r
-#if BUILD_EP93XX == 1\r
- extern jtag_interface_t ep93xx_interface;\r
-#endif\r
-\r
-#if BUILD_AT91RM9200 == 1\r
- extern jtag_interface_t at91rm9200_interface;\r
-#endif\r
-\r
-#if BUILD_GW16012 == 1\r
- extern jtag_interface_t gw16012_interface;\r
-#endif\r
-\r
-#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1\r
- extern jtag_interface_t presto_interface;\r
-#endif\r
-\r
-#if BUILD_USBPROG == 1\r
- extern jtag_interface_t usbprog_interface;\r
-#endif\r
-\r
-jtag_interface_t *jtag_interfaces[] = {\r
-#if BUILD_PARPORT == 1\r
- &parport_interface,\r
-#endif\r
-#if BUILD_FT2232_FTD2XX == 1\r
- &ft2232_interface,\r
-#endif\r
-#if BUILD_FT2232_LIBFTDI == 1\r
- &ft2232_interface,\r
-#endif\r
-#if BUILD_AMTJTAGACCEL == 1\r
- &amt_jtagaccel_interface,\r
-#endif\r
-#if BUILD_EP93XX == 1\r
- &ep93xx_interface,\r
-#endif\r
-#if BUILD_AT91RM9200 == 1\r
- &at91rm9200_interface,\r
-#endif\r
-#if BUILD_GW16012 == 1\r
- &gw16012_interface,\r
-#endif\r
-#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1\r
- &presto_interface,\r
-#endif\r
-#if BUILD_USBPROG == 1\r
- &usbprog_interface,\r
-#endif\r
- NULL,\r
-};\r
-\r
-jtag_interface_t *jtag = NULL;\r
-\r
-/* configuration */\r
-jtag_interface_t *jtag_interface = NULL;\r
-int jtag_speed = 0;\r
-\r
-\r
-/* forward declarations */\r
-int jtag_add_statemove(enum tap_state endstate);\r
-int jtag_add_pathmove(int num_states, enum tap_state *path);\r
-int jtag_add_runtest(int num_cycles, enum tap_state endstate);\r
-int jtag_add_reset(int trst, int srst);\r
-int jtag_add_end_state(enum tap_state endstate);\r
-int jtag_add_sleep(u32 us);\r
-int jtag_execute_queue(void);\r
-int jtag_cancel_queue(void);\r
-\r
-/* jtag commands */\r
-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);\r
-\r
-int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)\r
-{\r
- jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;\r
- \r
- if (callback == NULL)\r
- {\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- \r
- if (*callbacks_p)\r
- {\r
- while ((*callbacks_p)->next)\r
- callbacks_p = &((*callbacks_p)->next);\r
- callbacks_p = &((*callbacks_p)->next);\r
- }\r
- \r
- (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));\r
- (*callbacks_p)->callback = callback;\r
- (*callbacks_p)->priv = priv;\r
- (*callbacks_p)->next = NULL;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))\r
-{\r
- jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;\r
- \r
- if (callback == NULL)\r
- {\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- \r
- while (*callbacks_p)\r
- {\r
- jtag_event_callback_t **next = &((*callbacks_p)->next);\r
- if ((*callbacks_p)->callback == callback)\r
- {\r
- free(*callbacks_p);\r
- *callbacks_p = *next;\r
- }\r
- callbacks_p = next;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_call_event_callbacks(enum jtag_event event)\r
-{\r
- jtag_event_callback_t *callback = jtag_event_callbacks;\r
- \r
- DEBUG("jtag event: %s", jtag_event_strings[event]);\r
- \r
- while (callback)\r
- {\r
- callback->callback(event, callback->priv);\r
- callback = callback->next;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-/* returns a pointer to the pointer of the last command in queue\r
- * this may be a pointer to the root pointer (jtag_command_queue)\r
- * or to the next member of the last but one command\r
- */\r
-jtag_command_t** jtag_get_last_command_p(void)\r
-{\r
-/* jtag_command_t *cmd = jtag_command_queue;\r
- \r
- if (cmd)\r
- while (cmd->next)\r
- cmd = cmd->next;\r
- else\r
- return &jtag_command_queue;\r
- \r
- return &cmd->next;*/\r
- \r
- return last_comand_pointer;\r
-}\r
-\r
-/* returns a pointer to the n-th device in the scan chain */\r
-jtag_device_t* jtag_get_device(int num)\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- int i = 0;\r
-\r
- while (device)\r
- {\r
- if (num == i)\r
- return device;\r
- device = device->next;\r
- i++;\r
- }\r
- \r
- ERROR("jtag device number %d not defined", num);\r
- exit(-1);\r
-}\r
-\r
-void* cmd_queue_alloc(size_t size)\r
-{\r
- cmd_queue_page_t **p_page = &cmd_queue_pages;\r
- int offset;\r
-\r
- if (*p_page)\r
- {\r
- while ((*p_page)->next)\r
- p_page = &((*p_page)->next);\r
- if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)\r
- p_page = &((*p_page)->next);\r
- }\r
-\r
- if (!*p_page)\r
- {\r
- *p_page = malloc(sizeof(cmd_queue_page_t));\r
- (*p_page)->used = 0;\r
- (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);\r
- (*p_page)->next = NULL;\r
- }\r
-\r
- offset = (*p_page)->used;\r
- (*p_page)->used += size;\r
- \r
- u8 *t=(u8 *)((*p_page)->address);\r
- return t + offset;\r
-}\r
-\r
-void cmd_queue_free()\r
-{\r
- cmd_queue_page_t *page = cmd_queue_pages;\r
-\r
- while (page)\r
- {\r
- cmd_queue_page_t *last = page;\r
- free(page->address);\r
- page = page->next;\r
- free(last);\r
- }\r
-\r
- cmd_queue_pages = NULL;\r
-}\r
-\r
-int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd;\r
- jtag_device_t *device;\r
- int i, j;\r
- int scan_size = 0;\r
-\r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for ir scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 1;\r
- (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < jtag_num_devices; i++)\r
- {\r
- int found = 0;\r
- device = jtag_get_device(i);\r
- scan_size = device->ir_length;\r
- (*last_cmd)->cmd.scan->fields[i].device = i;\r
- (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;\r
- (*last_cmd)->cmd.scan->fields[i].in_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */\r
-\r
- /* search the list */\r
- for (j = 0; j < num_fields; j++)\r
- {\r
- if (i == fields[j].device)\r
- {\r
- found = 1;\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- \r
- if (jtag_verify_capture_ir)\r
- {\r
- if (fields[j].in_handler==NULL)\r
- {\r
- jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);\r
- } else\r
- {\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected; \r
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;\r
- }\r
- }\r
- \r
- device->bypass = 0;\r
- break;\r
- }\r
- }\r
- \r
- if (!found)\r
- {\r
- /* if a device isn't listed, set it to BYPASS */\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;\r
- device->bypass = 1;\r
- \r
- }\r
- \r
- /* update device information */\r
- buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd;\r
- int i;\r
-\r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for ir scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 1;\r
- (*last_cmd)->cmd.scan->num_fields = num_fields;\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
-\r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < num_fields; i++)\r
- {\r
- int num_bits = fields[i].num_bits;\r
- int num_bytes = CEIL(fields[i].num_bits, 8);\r
- (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;\r
- (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;\r
- }\r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
-{\r
- int i, j;\r
- int bypass_devices = 0;\r
- int field_count = 0;\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- jtag_device_t *device = jtag_devices;\r
- int scan_size;\r
-\r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* count devices in bypass */\r
- while (device)\r
- {\r
- if (device->bypass)\r
- bypass_devices++;\r
- device = device->next;\r
- }\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for dr scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 0;\r
- (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < jtag_num_devices; i++)\r
- {\r
- int found = 0;\r
- (*last_cmd)->cmd.scan->fields[field_count].device = i;\r
- \r
- for (j = 0; j < num_fields; j++)\r
- {\r
- if (i == fields[j].device)\r
- {\r
- found = 1;\r
- scan_size = fields[j].num_bits;\r
- (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;\r
- (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);\r
- (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;\r
- (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;\r
- }\r
- }\r
- if (!found)\r
- {\r
- /* if a device isn't listed, the BYPASS register should be selected */\r
- if (!jtag_get_device(i)->bypass)\r
- {\r
- ERROR("BUG: no scan data for a device not in BYPASS");\r
- exit(-1);\r
- }\r
- \r
- /* program the scan field to 1 bit length, and ignore it's value */\r
- (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;\r
- (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;\r
- (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;\r
- }\r
- else\r
- {\r
- /* if a device is listed, the BYPASS register must not be selected */\r
- if (jtag_get_device(i)->bypass)\r
- {\r
- WARNING("scan data for a device in BYPASS");\r
- }\r
- }\r
- }\r
- return ERROR_OK;\r
-}\r
-\r
-\r
-int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)\r
-{\r
- int i;\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_SCAN;\r
-\r
- /* allocate memory for scan command */\r
- (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));\r
- (*last_cmd)->cmd.scan->ir_scan = 0;\r
- (*last_cmd)->cmd.scan->num_fields = num_fields;\r
- (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));\r
- (*last_cmd)->cmd.scan->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- for (i = 0; i < num_fields; i++)\r
- {\r
- int num_bits = fields[i].num_bits;\r
- int num_bytes = CEIL(fields[i].num_bits, 8);\r
- (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;\r
- (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;\r
- (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);\r
- (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;\r
- (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;\r
- (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-int jtag_add_statemove(enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_STATEMOVE;\r
-\r
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));\r
- (*last_cmd)->cmd.statemove->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_pathmove(int num_states, enum tap_state *path)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- int i;\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
- \r
- /* the last state has to be a stable state */\r
- if (tap_move_map[path[num_states - 1]] == -1)\r
- {\r
- ERROR("TAP path doesn't finish in a stable state");\r
- return ERROR_JTAG_NOT_IMPLEMENTED;\r
- }\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->next = NULL;\r
- (*last_cmd)->type = JTAG_PATHMOVE;\r
-\r
- (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));\r
- (*last_cmd)->cmd.pathmove->num_states = num_states;\r
- (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);\r
- \r
- for (i = 0; i < num_states; i++)\r
- (*last_cmd)->cmd.pathmove->path[i] = path[i];\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = path[num_states - 1];\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_runtest(int num_cycles, enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (jtag_trst == 1)\r
- {\r
- WARNING("JTAG command queued, while TRST is low (TAP in reset)");\r
- return ERROR_JTAG_TRST_ASSERTED;\r
- }\r
-\r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_RUNTEST;\r
-\r
- (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));\r
- (*last_cmd)->cmd.runtest->num_cycles = num_cycles;\r
- (*last_cmd)->cmd.runtest->end_state = state;\r
- \r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
-\r
- if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_RELEASED);\r
- \r
- if (cmd_queue_end_state == TAP_TLR)\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- \r
- cmd_queue_cur_state = cmd_queue_end_state;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_reset(int req_trst, int req_srst)\r
-{\r
- int trst_with_tms = 0;\r
- \r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- if (req_trst == -1)\r
- req_trst = jtag_trst;\r
- \r
- if (req_srst == -1)\r
- req_srst = jtag_srst;\r
-\r
- /* Make sure that jtag_reset_config allows the requested reset */\r
- /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */\r
- if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))\r
- return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;\r
- \r
- /* if TRST pulls SRST, we reset with TAP T-L-R */\r
- if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))\r
- {\r
- req_trst = 0;\r
- trst_with_tms = 1;\r
- }\r
- \r
- if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))\r
- {\r
- ERROR("requested nSRST assertion, but the current configuration doesn't support this");\r
- return ERROR_JTAG_RESET_CANT_SRST;\r
- }\r
- \r
- if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))\r
- {\r
- req_trst = 0;\r
- trst_with_tms = 1;\r
- }\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_RESET;\r
-\r
- (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));\r
- (*last_cmd)->cmd.reset->trst = req_trst;\r
- (*last_cmd)->cmd.reset->srst = req_srst;\r
-\r
- jtag_trst = req_trst;\r
- jtag_srst = req_srst;\r
-\r
- if (jtag_srst)\r
- {\r
- jtag_call_event_callbacks(JTAG_SRST_ASSERTED);\r
- }\r
- else\r
- {\r
- jtag_call_event_callbacks(JTAG_SRST_RELEASED);\r
- if (jtag_nsrst_delay)\r
- jtag_add_sleep(jtag_nsrst_delay * 1000);\r
- }\r
- \r
- if (trst_with_tms)\r
- {\r
- last_cmd = &((*last_cmd)->next);\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_STATEMOVE;\r
-\r
- (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));\r
- (*last_cmd)->cmd.statemove->end_state = TAP_TLR;\r
- \r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- cmd_queue_cur_state = TAP_TLR;\r
- cmd_queue_end_state = TAP_TLR;\r
- \r
- return ERROR_OK;\r
- }\r
- else\r
- {\r
- if (jtag_trst)\r
- {\r
- /* we just asserted nTRST, so we're now in Test-Logic-Reset,\r
- * and inform possible listeners about this\r
- */\r
- cmd_queue_cur_state = TAP_TLR;\r
- jtag_call_event_callbacks(JTAG_TRST_ASSERTED);\r
- }\r
- else\r
- {\r
- /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,\r
- * but we might want to add a delay to give the TAP time to settle\r
- */\r
- if (jtag_ntrst_delay)\r
- jtag_add_sleep(jtag_ntrst_delay * 1000);\r
- }\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_end_state(enum tap_state state)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_END_STATE;\r
-\r
- (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t));\r
- (*last_cmd)->cmd.end_state->end_state = state;\r
-\r
- if (state != -1)\r
- cmd_queue_end_state = state;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_add_sleep(u32 us)\r
-{\r
- jtag_command_t **last_cmd = jtag_get_last_command_p();\r
- \r
- /* allocate memory for a new list member */\r
- *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));\r
- (*last_cmd)->next = NULL;\r
- last_comand_pointer = &((*last_cmd)->next);\r
- (*last_cmd)->type = JTAG_SLEEP;\r
-\r
- (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));\r
- (*last_cmd)->cmd.sleep->us = us;\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_scan_size(scan_command_t *cmd)\r
-{\r
- int bit_count = 0;\r
- int i;\r
-\r
- /* count bits in scan command */\r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- bit_count += cmd->fields[i].num_bits;\r
- }\r
-\r
- return bit_count;\r
-}\r
-\r
-int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)\r
-{\r
- int bit_count = 0;\r
- int i;\r
- \r
- bit_count = jtag_scan_size(cmd);\r
- *buffer = malloc(CEIL(bit_count, 8));\r
- \r
- bit_count = 0;\r
-\r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- if (cmd->fields[i].out_value)\r
- {\r
-#ifdef _DEBUG_JTAG_IO_\r
- char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);\r
-#endif\r
- buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);\r
-#ifdef _DEBUG_JTAG_IO_\r
- DEBUG("fields[%i].out_value: 0x%s", i, char_buf);\r
- free(char_buf);\r
-#endif\r
- }\r
- \r
- bit_count += cmd->fields[i].num_bits;\r
- }\r
-\r
- return bit_count;\r
-\r
-}\r
-\r
-int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)\r
-{\r
- int i;\r
- int bit_count = 0;\r
- int retval;\r
- \r
- /* we return ERROR_OK, unless a check fails, or a handler reports a problem */\r
- retval = ERROR_OK;\r
- \r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- /* if neither in_value nor in_handler\r
- * are specified we don't have to examine this field\r
- */\r
- if (cmd->fields[i].in_value || cmd->fields[i].in_handler)\r
- {\r
- int num_bits = cmd->fields[i].num_bits;\r
- u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);\r
- \r
-#ifdef _DEBUG_JTAG_IO_\r
- char *char_buf;\r
-\r
- char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);\r
- DEBUG("fields[%i].in_value: 0x%s", i, char_buf);\r
- free(char_buf);\r
-#endif\r
- \r
- if (cmd->fields[i].in_value)\r
- {\r
- buf_cpy(captured, cmd->fields[i].in_value, num_bits);\r
- \r
- if (cmd->fields[i].in_handler)\r
- {\r
- if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)\r
- {\r
- WARNING("in_handler reported a failed check");\r
- retval = ERROR_JTAG_QUEUE_FAILED;\r
- }\r
- }\r
- }\r
- \r
- /* no in_value specified, but a handler takes care of the scanned data */\r
- if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))\r
- {\r
- if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)\r
- {\r
- /* We're going to call the error:handler later, but if the in_handler\r
- * reported an error we report this failure upstream\r
- */\r
- WARNING("in_handler reported a failed check");\r
- retval = ERROR_JTAG_QUEUE_FAILED;\r
- }\r
- }\r
-\r
- free(captured);\r
- }\r
- bit_count += cmd->fields[i].num_bits;\r
- }\r
-\r
- return retval;\r
-}\r
-\r
-int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)\r
-{\r
- int retval = ERROR_OK;\r
- int num_bits = field->num_bits;\r
- \r
- int compare_failed = 0;\r
- \r
- if (field->in_check_mask)\r
- compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);\r
- else\r
- compare_failed = buf_cmp(captured, field->in_check_value, num_bits);\r
- \r
- if (compare_failed)\r
- {\r
- /* An error handler could have caught the failing check\r
- * only report a problem when there wasn't a handler, or if the handler\r
- * acknowledged the error\r
- */ \r
- if (compare_failed)\r
- {\r
- char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);\r
- char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);\r
-\r
- if (field->in_check_mask)\r
- {\r
- char *in_check_mask_char;\r
- in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);\r
- WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);\r
- free(in_check_mask_char);\r
- }\r
- else\r
- {\r
- WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);\r
- }\r
-\r
- free(captured_char);\r
- free(in_check_value_char);\r
- \r
- retval = ERROR_JTAG_QUEUE_FAILED;\r
- }\r
- \r
- }\r
- return retval;\r
-}\r
-\r
-/* \r
- set up checking of this field using the in_handler. The values passed in must be valid until\r
- after jtag_execute() has completed.\r
- */\r
-void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)\r
-{\r
- if (value)\r
- field->in_handler = jtag_check_value;\r
- else\r
- field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */\r
- field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */ \r
- field->in_check_value = value;\r
- field->in_check_mask = mask;\r
-}\r
-\r
-enum scan_type jtag_scan_type(scan_command_t *cmd)\r
-{\r
- int i;\r
- int type = 0;\r
- \r
- for (i = 0; i < cmd->num_fields; i++)\r
- {\r
- if (cmd->fields[i].in_value || cmd->fields[i].in_handler)\r
- type |= SCAN_IN;\r
- if (cmd->fields[i].out_value)\r
- type |= SCAN_OUT;\r
- }\r
-\r
- return type;\r
-}\r
-\r
-int jtag_execute_queue(void)\r
-{\r
- int retval;\r
-\r
- retval = jtag->execute_queue();\r
- \r
- cmd_queue_free();\r
-\r
- jtag_command_queue = NULL;\r
- last_comand_pointer = &jtag_command_queue;\r
-\r
- return retval;\r
-}\r
-\r
-int jtag_reset_callback(enum jtag_event event, void *priv)\r
-{\r
- jtag_device_t *device = priv;\r
-\r
- DEBUG("-");\r
- \r
- if (event == JTAG_TRST_ASSERTED)\r
- {\r
- buf_set_ones(device->cur_instr, device->ir_length);\r
- device->bypass = 1;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-void jtag_sleep(u32 us)\r
-{\r
- usleep(us);\r
-}\r
-\r
-/* Try to examine chain layout according to IEEE 1149.1 §12\r
- */\r
-int jtag_examine_chain()\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- scan_field_t field;\r
- u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];\r
- int i;\r
- int bit_count;\r
- int device_count = 0;\r
- u8 zero_check = 0x0;\r
- u8 one_check = 0xff;\r
- \r
- field.device = 0;\r
- field.num_bits = sizeof(idcode_buffer) * 8;\r
- field.out_value = idcode_buffer;\r
- field.out_mask = NULL;\r
- field.in_value = idcode_buffer;\r
- field.in_check_value = NULL;\r
- field.in_check_mask = NULL;\r
- field.in_handler = NULL;\r
- field.in_handler_priv = NULL;\r
- \r
- for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)\r
- {\r
- buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);\r
- }\r
- \r
- jtag_add_plain_dr_scan(1, &field, TAP_TLR);\r
- jtag_execute_queue();\r
- \r
- for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)\r
- {\r
- zero_check |= idcode_buffer[i];\r
- one_check &= idcode_buffer[i];\r
- }\r
- \r
- /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */\r
- if ((zero_check == 0x00) || (one_check == 0xff))\r
- {\r
- ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)\r
- {\r
- u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);\r
- if ((idcode & 1) == 0)\r
- {\r
- /* LSB must not be 0, this indicates a device in bypass */\r
- device_count++;\r
- \r
- bit_count += 1;\r
- }\r
- else\r
- {\r
- u32 manufacturer;\r
- u32 part;\r
- u32 version;\r
- \r
- if (idcode == 0x000000FF)\r
- {\r
- /* End of chain (invalid manufacturer ID) */\r
- break;\r
- }\r
- \r
- if (device)\r
- {\r
- device->idcode = idcode;\r
- device = device->next;\r
- }\r
- device_count++;\r
- \r
- manufacturer = (idcode & 0xffe) >> 1;\r
- part = (idcode & 0xffff000) >> 12;\r
- version = (idcode & 0xf0000000) >> 28;\r
-\r
- INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)", \r
- idcode, manufacturer, part, version);\r
- \r
- bit_count += 32;\r
- }\r
- }\r
- \r
- /* see if number of discovered devices matches configuration */\r
- if (device_count != jtag_num_devices)\r
- {\r
- ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)", \r
- device_count, jtag_num_devices);\r
- ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_validate_chain()\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- int total_ir_length = 0;\r
- u8 *ir_test = NULL;\r
- scan_field_t field;\r
- int chain_pos = 0;\r
- \r
- while (device)\r
- {\r
- total_ir_length += device->ir_length;\r
- device = device->next;\r
- }\r
- \r
- total_ir_length += 2;\r
- ir_test = malloc(CEIL(total_ir_length, 8));\r
- buf_set_ones(ir_test, total_ir_length);\r
- \r
- field.device = 0;\r
- field.num_bits = total_ir_length;\r
- field.out_value = ir_test;\r
- field.out_mask = NULL;\r
- field.in_value = ir_test;\r
- field.in_check_value = NULL;\r
- field.in_check_mask = NULL;\r
- field.in_handler = NULL;\r
- field.in_handler_priv = NULL;\r
- \r
- jtag_add_plain_ir_scan(1, &field, TAP_TLR);\r
- jtag_execute_queue();\r
- \r
- device = jtag_devices;\r
- while (device)\r
- {\r
- if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)\r
- {\r
- char *cbuf = buf_to_str(ir_test, total_ir_length, 16);\r
- ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);\r
- free(cbuf);\r
- free(ir_test);\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- chain_pos += device->ir_length;\r
- device = device->next;\r
- }\r
- \r
- if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)\r
- {\r
- char *cbuf = buf_to_str(ir_test, total_ir_length, 16);\r
- ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);\r
- free(cbuf);\r
- free(ir_test);\r
- return ERROR_JTAG_INIT_FAILED;\r
- }\r
- \r
- free(ir_test);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_register_commands(struct command_context_s *cmd_ctx)\r
-{\r
- register_command(cmd_ctx, NULL, "interface", handle_interface_command,\r
- COMMAND_CONFIG, NULL);\r
- register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,\r
- COMMAND_ANY, "set jtag speed (if supported) <speed>");\r
- register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,\r
- COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");\r
- register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,\r
- COMMAND_CONFIG, NULL);\r
- register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,\r
- COMMAND_CONFIG, NULL);\r
- register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,\r
- COMMAND_CONFIG, NULL);\r
- \r
- register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,\r
- COMMAND_EXEC, "print current scan chain configuration");\r
-\r
- register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,\r
- COMMAND_EXEC, "finish JTAG operations in <tap_state>");\r
- register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,\r
- COMMAND_EXEC, "toggle reset lines <trst> <srst>");\r
- register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,\r
- COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");\r
- register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,\r
- COMMAND_EXEC, "move to current endstate or [tap_state]");\r
- register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,\r
- COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");\r
- register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,\r
- COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");\r
-\r
- register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,\r
- COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");\r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_interface_init(struct command_context_s *cmd_ctx)\r
-{\r
- if (!jtag_interface)\r
- {\r
- /* nothing was previously specified by "interface" command */\r
- ERROR("JTAG interface has to be specified, see \"interface\" command");\r
- return ERROR_JTAG_INVALID_INTERFACE;\r
- }\r
-\r
- if (jtag_interface->init() != ERROR_OK)\r
- return ERROR_JTAG_INIT_FAILED;\r
-\r
- jtag = jtag_interface;\r
- return ERROR_OK;\r
-}\r
-\r
-int jtag_init(struct command_context_s *cmd_ctx)\r
-{\r
- int i, validate_tries = 0;\r
- jtag_device_t *device;\r
-\r
- DEBUG("-");\r
- \r
- if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)\r
- return ERROR_JTAG_INIT_FAILED;\r
-\r
- device = jtag_devices;\r
- jtag_ir_scan_size = 0;\r
- jtag_num_devices = 0;\r
- while (device != NULL)\r
- {\r
- jtag_ir_scan_size += device->ir_length;\r
- jtag_num_devices++;\r
- device = device->next;\r
- }\r
- \r
- jtag_add_statemove(TAP_TLR);\r
- jtag_execute_queue();\r
-\r
- /* examine chain first, as this could discover the real chain layout */\r
- if (jtag_examine_chain() != ERROR_OK)\r
- {\r
- ERROR("trying to validate configured JTAG chain anyway...");\r
- }\r
- \r
- while (jtag_validate_chain() != ERROR_OK)\r
- {\r
- validate_tries++;\r
- if (validate_tries > 5)\r
- {\r
- ERROR("Could not validate JTAG chain, exit");\r
- jtag = NULL;\r
- return ERROR_JTAG_INVALID_INTERFACE;\r
- }\r
- usleep(10000);\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- int i;\r
-\r
- /* check whether the interface is already configured */\r
- if (jtag_interface)\r
- {\r
- WARNING("Interface already configured, ignoring");\r
- return ERROR_OK;\r
- }\r
-\r
- /* interface name is a mandatory argument */\r
- if (argc < 1 || args[0][0] == '\0')\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- for (i=0; jtag_interfaces[i]; i++)\r
- {\r
- if (strcmp(args[0], jtag_interfaces[i]->name) == 0)\r
- {\r
- if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)\r
- exit(-1);\r
-\r
- jtag_interface = jtag_interfaces[i];\r
- return ERROR_OK;\r
- }\r
- }\r
-\r
- /* no valid interface was found (i.e. the configuration option,\r
- * didn't match one of the compiled-in interfaces\r
- */\r
- ERROR("No valid jtag interface found (%s)", args[0]);\r
- ERROR("compiled-in jtag interfaces:");\r
- for (i = 0; jtag_interfaces[i]; i++)\r
- {\r
- ERROR("%i: %s", i, jtag_interfaces[i]->name);\r
- }\r
-\r
- return ERROR_JTAG_INVALID_INTERFACE;\r
-}\r
-\r
-int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- jtag_device_t **last_device_p = &jtag_devices;\r
-\r
- if (*last_device_p)\r
- {\r
- while ((*last_device_p)->next)\r
- last_device_p = &((*last_device_p)->next);\r
- last_device_p = &((*last_device_p)->next);\r
- }\r
-\r
- if (argc < 3)\r
- return ERROR_OK;\r
-\r
- *last_device_p = malloc(sizeof(jtag_device_t));\r
- (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);\r
-\r
- (*last_device_p)->expected = malloc((*last_device_p)->ir_length);\r
- buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));\r
- (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);\r
- buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));\r
-\r
- (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);\r
- (*last_device_p)->bypass = 1;\r
- buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);\r
- \r
- (*last_device_p)->next = NULL;\r
- \r
- jtag_register_event_callback(jtag_reset_callback, (*last_device_p));\r
- \r
- jtag_num_devices++;\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- jtag_device_t *device = jtag_devices;\r
- int device_count = 0;\r
- \r
- while (device)\r
- {\r
- u32 expected, expected_mask, cur_instr;\r
- expected = buf_get_u32(device->expected, 0, device->ir_length);\r
- expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);\r
- cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);\r
- command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);\r
- device = device->next;\r
- device_count++;\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc >= 1)\r
- {\r
- if (strcmp(args[0], "none") == 0)\r
- jtag_reset_config = RESET_NONE;\r
- else if (strcmp(args[0], "trst_only") == 0)\r
- jtag_reset_config = RESET_HAS_TRST;\r
- else if (strcmp(args[0], "srst_only") == 0)\r
- jtag_reset_config = RESET_HAS_SRST;\r
- else if (strcmp(args[0], "trst_and_srst") == 0)\r
- jtag_reset_config = RESET_TRST_AND_SRST;\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
- \r
- if (argc >= 2)\r
- {\r
- if (strcmp(args[1], "srst_pulls_trst") == 0)\r
- jtag_reset_config |= RESET_SRST_PULLS_TRST;\r
- else if (strcmp(args[1], "trst_pulls_srst") == 0)\r
- jtag_reset_config |= RESET_TRST_PULLS_SRST;\r
- else if (strcmp(args[1], "combined") == 0)\r
- jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;\r
- else if (strcmp(args[1], "separate") == 0)\r
- jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
- \r
- if (argc >= 3)\r
- {\r
- if (strcmp(args[2], "trst_open_drain") == 0)\r
- jtag_reset_config |= RESET_TRST_OPEN_DRAIN;\r
- else if (strcmp(args[2], "trst_push_pull") == 0)\r
- jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
-\r
- if (argc >= 4)\r
- {\r
- if (strcmp(args[3], "srst_push_pull") == 0)\r
- jtag_reset_config |= RESET_SRST_PUSH_PULL;\r
- else if (strcmp(args[3], "srst_open_drain") == 0)\r
- jtag_reset_config &= ~RESET_SRST_PUSH_PULL;\r
- else\r
- {\r
- ERROR("invalid reset_config argument, defaulting to none");\r
- jtag_reset_config = RESET_NONE;\r
- return ERROR_INVALID_ARGUMENTS;\r
- }\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc < 1)\r
- {\r
- ERROR("jtag_nsrst_delay <ms> command takes one required argument");\r
- exit(-1);\r
- }\r
- else\r
- {\r
- jtag_nsrst_delay = strtoul(args[0], NULL, 0);\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc < 1)\r
- {\r
- ERROR("jtag_ntrst_delay <ms> command takes one required argument");\r
- exit(-1);\r
- }\r
- else\r
- {\r
- jtag_ntrst_delay = strtoul(args[0], NULL, 0);\r
- }\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc == 0)\r
- command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);\r
-\r
- if (argc > 0)\r
- {\r
- /* this command can be called during CONFIG, \r
- * in which case jtag isn't initialized */\r
- if (jtag)\r
- jtag->speed(strtoul(args[0], NULL, 0));\r
- else\r
- jtag_speed = strtoul(args[0], NULL, 0);\r
- }\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- enum tap_state state;\r
-\r
- if (argc < 1)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
- else\r
- {\r
- for (state = 0; state < 16; state++)\r
- {\r
- if (strcmp(args[0], tap_state_strings[state]) == 0)\r
- {\r
- jtag_add_end_state(state);\r
- jtag_execute_queue();\r
- }\r
- }\r
- }\r
- command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);\r
- \r
- return ERROR_OK;\r
-}\r
-\r
-int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- int trst = -1;\r
- int srst = -1;\r
- int retval;\r
- \r
- if (argc < 2)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
-\r
- }\r
-\r
- if (args[0][0] == '1')\r
- trst = 1;\r
- else if (args[0][0] == '0')\r
- trst = 0;\r
- else\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- if (args[1][0] == '1')\r
- srst = 1;\r
- else if (args[1][0] == '0')\r
- srst = 0;\r
- else\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)\r
- return ERROR_JTAG_INIT_FAILED;\r
-\r
- if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK)\r
- {\r
- switch (retval)\r
- {\r
- case ERROR_JTAG_RESET_WOULD_ASSERT_TRST:\r
- command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]);\r
- break;\r
- case ERROR_JTAG_RESET_CANT_SRST:\r
- command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it");\r
- break;\r
- default:\r
- command_print(cmd_ctx, "unknown error");\r
- }\r
- }\r
- jtag_execute_queue();\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc < 1)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- jtag_add_runtest(strtol(args[0], NULL, 0), -1);\r
- jtag_execute_queue();\r
-\r
- return ERROR_OK;\r
-\r
-}\r
-\r
-int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- enum tap_state state;\r
-\r
- state = -1;\r
- if (argc == 1)\r
- {\r
- for (state = 0; state < 16; state++)\r
- {\r
- if (strcmp(args[0], tap_state_strings[state]) == 0)\r
- {\r
- break;\r
- }\r
- }\r
- }\r
-\r
- jtag_add_statemove(state);\r
- jtag_execute_queue();\r
-\r
- return ERROR_OK;\r
-\r
-}\r
-\r
-int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- int i;\r
- scan_field_t *fields;\r
- \r
- if ((argc < 2) || (argc % 2))\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- fields = malloc(sizeof(scan_field_t) * argc / 2);\r
- \r
- for (i = 0; i < argc / 2; i++)\r
- {\r
- int device = strtoul(args[i*2], NULL, 0);\r
- int field_size = jtag_get_device(device)->ir_length;\r
- fields[i].device = device;\r
- fields[i].out_value = malloc(CEIL(field_size, 8));\r
- buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));\r
- fields[i].out_mask = NULL;\r
- fields[i].in_value = NULL;\r
- fields[i].in_check_mask = NULL;\r
- fields[i].in_handler = NULL;\r
- fields[i].in_handler_priv = NULL;\r
- }\r
-\r
- jtag_add_ir_scan(argc / 2, fields, -1);\r
- jtag_execute_queue();\r
-\r
- for (i = 0; i < argc / 2; i++)\r
- free(fields[i].out_value);\r
-\r
- free (fields);\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- scan_field_t *fields;\r
- int num_fields = 0;\r
- int field_count = 0;\r
- var_t *var;\r
- int i, j;\r
- \r
- if ((argc < 2) || (argc % 2))\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
-\r
- for (i = 0; i < argc; i+=2)\r
- {\r
- var = get_var_by_namenum(args[i+1]);\r
- if (var)\r
- {\r
- num_fields += var->num_fields;\r
- }\r
- else\r
- {\r
- command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);\r
- return ERROR_OK;\r
- }\r
- }\r
-\r
- fields = malloc(sizeof(scan_field_t) * num_fields);\r
-\r
- for (i = 0; i < argc; i+=2)\r
- {\r
- var = get_var_by_namenum(args[i+1]);\r
- \r
- for (j = 0; j < var->num_fields; j++)\r
- {\r
- fields[field_count].device = strtol(args[i], NULL, 0);\r
- fields[field_count].num_bits = var->fields[j].num_bits;\r
- fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));\r
- buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);\r
- fields[field_count].out_mask = NULL;\r
- fields[field_count].in_value = fields[field_count].out_value;\r
- fields[field_count].in_check_mask = NULL;\r
- fields[field_count].in_check_value = NULL;\r
- fields[field_count].in_handler = field_le_to_host;\r
- fields[field_count++].in_handler_priv = &(var->fields[j]);\r
- }\r
- }\r
-\r
- jtag_add_dr_scan(num_fields, fields, -1);\r
- jtag_execute_queue();\r
- \r
- for (i = 0; i < argc / 2; i++)\r
- free(fields[i].out_value);\r
-\r
- free(fields);\r
-\r
- return ERROR_OK;\r
-}\r
-\r
-int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)\r
-{\r
- if (argc == 1)\r
- {\r
- if (strcmp(args[0], "enable") == 0)\r
- {\r
- jtag_verify_capture_ir = 1;\r
- }\r
- else if (strcmp(args[0], "disable") == 0)\r
- {\r
- jtag_verify_capture_ir = 0;\r
- } else\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
- } else if (argc != 0)\r
- {\r
- return ERROR_COMMAND_SYNTAX_ERROR;\r
- }\r
- \r
- command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");\r
- \r
- return ERROR_OK;\r
-}\r
+/***************************************************************************
+ * Copyright (C) 2005 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "replacements.h"
+
+#include "jtag.h"
+
+#include "command.h"
+#include "log.h"
+#include "interpreter.h"
+
+#include "stdlib.h"
+#include "string.h"
+#include <unistd.h>
+
+char* tap_state_strings[16] =
+{
+ "tlr",
+ "sds", "cd", "sd", "e1d", "pd", "e2d", "ud",
+ "rti",
+ "sis", "ci", "si", "e1i", "pi", "e2i", "ui"
+};
+
+typedef struct cmd_queue_page_s
+{
+ void *address;
+ size_t used;
+ struct cmd_queue_page_s *next;
+} cmd_queue_page_t;
+
+#define CMD_QUEUE_PAGE_SIZE (1024 * 1024)
+static cmd_queue_page_t *cmd_queue_pages = NULL;
+
+/* tap_move[i][j]: tap movement command to go from state i to state j
+ * 0: Test-Logic-Reset
+ * 1: Run-Test/Idle
+ * 2: Shift-DR
+ * 3: Pause-DR
+ * 4: Shift-IR
+ * 5: Pause-IR
+ *
+ * SD->SD and SI->SI have to be caught in interface specific code
+ */
+u8 tap_move[6][6] =
+{
+/* TLR RTI SD PD SI PI */
+ {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */
+ {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */
+ {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
+ {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */
+ {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */
+ {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */
+};
+
+int tap_move_map[16] = {
+ 0, -1, -1, 2, -1, 3, -1, -1,
+ 1, -1, -1, 4, -1, 5, -1, -1
+};
+
+tap_transition_t tap_transitions[16] =
+{
+ {TAP_TLR, TAP_RTI}, /* TLR */
+ {TAP_SIS, TAP_CD}, /* SDS */
+ {TAP_E1D, TAP_SD}, /* CD */
+ {TAP_E1D, TAP_SD}, /* SD */
+ {TAP_UD, TAP_PD}, /* E1D */
+ {TAP_E2D, TAP_PD}, /* PD */
+ {TAP_UD, TAP_SD}, /* E2D */
+ {TAP_SDS, TAP_RTI}, /* UD */
+ {TAP_SDS, TAP_RTI}, /* RTI */
+ {TAP_TLR, TAP_CI}, /* SIS */
+ {TAP_E1I, TAP_SI}, /* CI */
+ {TAP_E1I, TAP_SI}, /* SI */
+ {TAP_UI, TAP_PI}, /* E1I */
+ {TAP_E2I, TAP_PI}, /* PI */
+ {TAP_UI, TAP_SI}, /* E2I */
+ {TAP_SDS, TAP_RTI} /* UI */
+};
+
+char* jtag_event_strings[] =
+{
+ "SRST asserted",
+ "TRST asserted",
+ "SRST released",
+ "TRST released"
+};
+
+enum tap_state end_state = TAP_TLR;
+enum tap_state cur_state = TAP_TLR;
+int jtag_trst = 0;
+int jtag_srst = 0;
+
+jtag_command_t *jtag_command_queue = NULL;
+jtag_command_t **last_comand_pointer = &jtag_command_queue;
+jtag_device_t *jtag_devices = NULL;
+int jtag_num_devices = 0;
+int jtag_ir_scan_size = 0;
+enum reset_types jtag_reset_config = RESET_NONE;
+enum tap_state cmd_queue_end_state = TAP_TLR;
+enum tap_state cmd_queue_cur_state = TAP_TLR;
+
+int jtag_verify_capture_ir = 1;
+
+/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */
+int jtag_nsrst_delay = 0; /* default to no nSRST delay */
+int jtag_ntrst_delay = 0; /* default to no nTRST delay */
+
+/* maximum number of JTAG devices expected in the chain
+ */
+#define JTAG_MAX_CHAIN_SIZE 20
+
+/* callbacks to inform high-level handlers about JTAG state changes */
+jtag_event_callback_t *jtag_event_callbacks;
+
+/* jtag interfaces (parport, FTDI-USB, TI-USB, ...)
+ */
+#if BUILD_PARPORT == 1
+ extern jtag_interface_t parport_interface;
+#endif
+
+#if BUILD_FT2232_FTD2XX == 1
+ extern jtag_interface_t ft2232_interface;
+#endif
+
+#if BUILD_FT2232_LIBFTDI == 1
+ extern jtag_interface_t ft2232_interface;
+#endif
+
+#if BUILD_AMTJTAGACCEL == 1
+ extern jtag_interface_t amt_jtagaccel_interface;
+#endif
+
+#if BUILD_EP93XX == 1
+ extern jtag_interface_t ep93xx_interface;
+#endif
+
+#if BUILD_AT91RM9200 == 1
+ extern jtag_interface_t at91rm9200_interface;
+#endif
+
+#if BUILD_GW16012 == 1
+ extern jtag_interface_t gw16012_interface;
+#endif
+
+#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
+ extern jtag_interface_t presto_interface;
+#endif
+
+#if BUILD_USBPROG == 1
+ extern jtag_interface_t usbprog_interface;
+#endif
+
+jtag_interface_t *jtag_interfaces[] = {
+#if BUILD_PARPORT == 1
+ &parport_interface,
+#endif
+#if BUILD_FT2232_FTD2XX == 1
+ &ft2232_interface,
+#endif
+#if BUILD_FT2232_LIBFTDI == 1
+ &ft2232_interface,
+#endif
+#if BUILD_AMTJTAGACCEL == 1
+ &amt_jtagaccel_interface,
+#endif
+#if BUILD_EP93XX == 1
+ &ep93xx_interface,
+#endif
+#if BUILD_AT91RM9200 == 1
+ &at91rm9200_interface,
+#endif
+#if BUILD_GW16012 == 1
+ &gw16012_interface,
+#endif
+#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1
+ &presto_interface,
+#endif
+#if BUILD_USBPROG == 1
+ &usbprog_interface,
+#endif
+ NULL,
+};
+
+jtag_interface_t *jtag = NULL;
+
+/* configuration */
+jtag_interface_t *jtag_interface = NULL;
+int jtag_speed = 0;
+
+
+/* forward declarations */
+int jtag_add_statemove(enum tap_state endstate);
+int jtag_add_pathmove(int num_states, enum tap_state *path);
+int jtag_add_runtest(int num_cycles, enum tap_state endstate);
+int jtag_add_reset(int trst, int srst);
+int jtag_add_end_state(enum tap_state endstate);
+int jtag_add_sleep(u32 us);
+int jtag_execute_queue(void);
+int jtag_cancel_queue(void);
+
+/* jtag commands */
+int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+
+int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
+{
+ jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
+
+ if (callback == NULL)
+ {
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ if (*callbacks_p)
+ {
+ while ((*callbacks_p)->next)
+ callbacks_p = &((*callbacks_p)->next);
+ callbacks_p = &((*callbacks_p)->next);
+ }
+
+ (*callbacks_p) = malloc(sizeof(jtag_event_callback_t));
+ (*callbacks_p)->callback = callback;
+ (*callbacks_p)->priv = priv;
+ (*callbacks_p)->next = NULL;
+
+ return ERROR_OK;
+}
+
+int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
+{
+ jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
+
+ if (callback == NULL)
+ {
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ while (*callbacks_p)
+ {
+ jtag_event_callback_t **next = &((*callbacks_p)->next);
+ if ((*callbacks_p)->callback == callback)
+ {
+ free(*callbacks_p);
+ *callbacks_p = *next;
+ }
+ callbacks_p = next;
+ }
+
+ return ERROR_OK;
+}
+
+int jtag_call_event_callbacks(enum jtag_event event)
+{
+ jtag_event_callback_t *callback = jtag_event_callbacks;
+
+ DEBUG("jtag event: %s", jtag_event_strings[event]);
+
+ while (callback)
+ {
+ callback->callback(event, callback->priv);
+ callback = callback->next;
+ }
+
+ return ERROR_OK;
+}
+
+/* returns a pointer to the pointer of the last command in queue
+ * this may be a pointer to the root pointer (jtag_command_queue)
+ * or to the next member of the last but one command
+ */
+jtag_command_t** jtag_get_last_command_p(void)
+{
+/* jtag_command_t *cmd = jtag_command_queue;
+
+ if (cmd)
+ while (cmd->next)
+ cmd = cmd->next;
+ else
+ return &jtag_command_queue;
+
+ return &cmd->next;*/
+
+ return last_comand_pointer;
+}
+
+/* returns a pointer to the n-th device in the scan chain */
+jtag_device_t* jtag_get_device(int num)
+{
+ jtag_device_t *device = jtag_devices;
+ int i = 0;
+
+ while (device)
+ {
+ if (num == i)
+ return device;
+ device = device->next;
+ i++;
+ }
+
+ ERROR("jtag device number %d not defined", num);
+ exit(-1);
+}
+
+void* cmd_queue_alloc(size_t size)
+{
+ cmd_queue_page_t **p_page = &cmd_queue_pages;
+ int offset;
+
+ if (*p_page)
+ {
+ while ((*p_page)->next)
+ p_page = &((*p_page)->next);
+ if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size)
+ p_page = &((*p_page)->next);
+ }
+
+ if (!*p_page)
+ {
+ *p_page = malloc(sizeof(cmd_queue_page_t));
+ (*p_page)->used = 0;
+ (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE);
+ (*p_page)->next = NULL;
+ }
+
+ offset = (*p_page)->used;
+ (*p_page)->used += size;
+
+ u8 *t=(u8 *)((*p_page)->address);
+ return t + offset;
+}
+
+void cmd_queue_free()
+{
+ cmd_queue_page_t *page = cmd_queue_pages;
+
+ while (page)
+ {
+ cmd_queue_page_t *last = page;
+ free(page->address);
+ page = page->next;
+ free(last);
+ }
+
+ cmd_queue_pages = NULL;
+}
+
+int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ jtag_command_t **last_cmd;
+ jtag_device_t *device;
+ int i, j;
+ int scan_size = 0;
+
+ if (jtag_trst == 1)
+ {
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
+ last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for ir scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 1;
+ (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = state;
+
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+
+ for (i = 0; i < jtag_num_devices; i++)
+ {
+ int found = 0;
+ device = jtag_get_device(i);
+ scan_size = device->ir_length;
+ (*last_cmd)->cmd.scan->fields[i].device = i;
+ (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size;
+ (*last_cmd)->cmd.scan->fields[i].in_value = NULL;
+ (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */
+
+ /* search the list */
+ for (j = 0; j < num_fields; j++)
+ {
+ if (i == fields[j].device)
+ {
+ found = 1;
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+
+ if (jtag_verify_capture_ir)
+ {
+ if (fields[j].in_handler==NULL)
+ {
+ jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL);
+ } else
+ {
+ (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler;
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv;
+ (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected;
+ (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask;
+ }
+ }
+
+ device->bypass = 0;
+ break;
+ }
+ }
+
+ if (!found)
+ {
+ /* if a device isn't listed, set it to BYPASS */
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[i].out_mask = NULL;
+ device->bypass = 1;
+
+ }
+
+ /* update device information */
+ buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size);
+ }
+
+ return ERROR_OK;
+}
+
+int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ jtag_command_t **last_cmd;
+ int i;
+
+ if (jtag_trst == 1)
+ {
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
+ last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for ir scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 1;
+ (*last_cmd)->cmd.scan->num_fields = num_fields;
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = state;
+
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+
+ for (i = 0; i < num_fields; i++)
+ {
+ int num_bits = fields[i].num_bits;
+ int num_bytes = CEIL(fields[i].num_bits, 8);
+ (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
+ (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
+ (*last_cmd)->cmd.scan->fields[i].in_handler = NULL;
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL;
+ }
+ return ERROR_OK;
+}
+
+int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int i, j;
+ int bypass_devices = 0;
+ int field_count = 0;
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+ jtag_device_t *device = jtag_devices;
+ int scan_size;
+
+ if (jtag_trst == 1)
+ {
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
+ /* count devices in bypass */
+ while (device)
+ {
+ if (device->bypass)
+ bypass_devices++;
+ device = device->next;
+ }
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for dr scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 0;
+ (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices;
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = state;
+
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+
+ for (i = 0; i < jtag_num_devices; i++)
+ {
+ int found = 0;
+ (*last_cmd)->cmd.scan->fields[field_count].device = i;
+
+ for (j = 0; j < num_fields; j++)
+ {
+ if (i == fields[j].device)
+ {
+ found = 1;
+ scan_size = fields[j].num_bits;
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size;
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask;
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler;
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv;
+ }
+ }
+ if (!found)
+ {
+ /* if a device isn't listed, the BYPASS register should be selected */
+ if (!jtag_get_device(i)->bypass)
+ {
+ ERROR("BUG: no scan data for a device not in BYPASS");
+ exit(-1);
+ }
+
+ /* program the scan field to 1 bit length, and ignore it's value */
+ (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1;
+ (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL;
+ (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL;
+ }
+ else
+ {
+ /* if a device is listed, the BYPASS register must not be selected */
+ if (jtag_get_device(i)->bypass)
+ {
+ WARNING("scan data for a device in BYPASS");
+ }
+ }
+ }
+ return ERROR_OK;
+}
+
+
+int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
+{
+ int i;
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ if (jtag_trst == 1)
+ {
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_SCAN;
+
+ /* allocate memory for scan command */
+ (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t));
+ (*last_cmd)->cmd.scan->ir_scan = 0;
+ (*last_cmd)->cmd.scan->num_fields = num_fields;
+ (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t));
+ (*last_cmd)->cmd.scan->end_state = state;
+
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+
+ for (i = 0; i < num_fields; i++)
+ {
+ int num_bits = fields[i].num_bits;
+ int num_bytes = CEIL(fields[i].num_bits, 8);
+ (*last_cmd)->cmd.scan->fields[i].device = fields[i].device;
+ (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits;
+ (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits);
+ (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value;
+ (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask;
+ (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler;
+ (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv;
+ }
+
+ return ERROR_OK;
+}
+int jtag_add_statemove(enum tap_state state)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ if (jtag_trst == 1)
+ {
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_STATEMOVE;
+
+ (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
+ (*last_cmd)->cmd.statemove->end_state = state;
+
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+
+ return ERROR_OK;
+}
+
+int jtag_add_pathmove(int num_states, enum tap_state *path)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+ int i;
+
+ if (jtag_trst == 1)
+ {
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
+ /* the last state has to be a stable state */
+ if (tap_move_map[path[num_states - 1]] == -1)
+ {
+ ERROR("TAP path doesn't finish in a stable state");
+ return ERROR_JTAG_NOT_IMPLEMENTED;
+ }
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->next = NULL;
+ (*last_cmd)->type = JTAG_PATHMOVE;
+
+ (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
+ (*last_cmd)->cmd.pathmove->num_states = num_states;
+ (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states);
+
+ for (i = 0; i < num_states; i++)
+ (*last_cmd)->cmd.pathmove->path[i] = path[i];
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = path[num_states - 1];
+
+ return ERROR_OK;
+}
+
+int jtag_add_runtest(int num_cycles, enum tap_state state)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ if (jtag_trst == 1)
+ {
+ WARNING("JTAG command queued, while TRST is low (TAP in reset)");
+ return ERROR_JTAG_TRST_ASSERTED;
+ }
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_RUNTEST;
+
+ (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
+ (*last_cmd)->cmd.runtest->num_cycles = num_cycles;
+ (*last_cmd)->cmd.runtest->end_state = state;
+
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_RELEASED);
+
+ if (cmd_queue_end_state == TAP_TLR)
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+
+ cmd_queue_cur_state = cmd_queue_end_state;
+
+ return ERROR_OK;
+}
+
+int jtag_add_reset(int req_trst, int req_srst)
+{
+ int trst_with_tms = 0;
+
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ if (req_trst == -1)
+ req_trst = jtag_trst;
+
+ if (req_srst == -1)
+ req_srst = jtag_srst;
+
+ /* Make sure that jtag_reset_config allows the requested reset */
+ /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */
+ if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0))
+ return ERROR_JTAG_RESET_WOULD_ASSERT_TRST;
+
+ /* if TRST pulls SRST, we reset with TAP T-L-R */
+ if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0))
+ {
+ req_trst = 0;
+ trst_with_tms = 1;
+ }
+
+ if (req_srst && !(jtag_reset_config & RESET_HAS_SRST))
+ {
+ ERROR("requested nSRST assertion, but the current configuration doesn't support this");
+ return ERROR_JTAG_RESET_CANT_SRST;
+ }
+
+ if (req_trst && !(jtag_reset_config & RESET_HAS_TRST))
+ {
+ req_trst = 0;
+ trst_with_tms = 1;
+ }
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_RESET;
+
+ (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
+ (*last_cmd)->cmd.reset->trst = req_trst;
+ (*last_cmd)->cmd.reset->srst = req_srst;
+
+ jtag_trst = req_trst;
+ jtag_srst = req_srst;
+
+ if (jtag_srst)
+ {
+ jtag_call_event_callbacks(JTAG_SRST_ASSERTED);
+ }
+ else
+ {
+ jtag_call_event_callbacks(JTAG_SRST_RELEASED);
+ if (jtag_nsrst_delay)
+ jtag_add_sleep(jtag_nsrst_delay * 1000);
+ }
+
+ if (trst_with_tms)
+ {
+ last_cmd = &((*last_cmd)->next);
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_STATEMOVE;
+
+ (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
+ (*last_cmd)->cmd.statemove->end_state = TAP_TLR;
+
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+ cmd_queue_cur_state = TAP_TLR;
+ cmd_queue_end_state = TAP_TLR;
+
+ return ERROR_OK;
+ }
+ else
+ {
+ if (jtag_trst)
+ {
+ /* we just asserted nTRST, so we're now in Test-Logic-Reset,
+ * and inform possible listeners about this
+ */
+ cmd_queue_cur_state = TAP_TLR;
+ jtag_call_event_callbacks(JTAG_TRST_ASSERTED);
+ }
+ else
+ {
+ /* the nTRST line got deasserted, so we're still in Test-Logic-Reset,
+ * but we might want to add a delay to give the TAP time to settle
+ */
+ if (jtag_ntrst_delay)
+ jtag_add_sleep(jtag_ntrst_delay * 1000);
+ }
+ }
+
+ return ERROR_OK;
+}
+
+int jtag_add_end_state(enum tap_state state)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_END_STATE;
+
+ (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t));
+ (*last_cmd)->cmd.end_state->end_state = state;
+
+ if (state != -1)
+ cmd_queue_end_state = state;
+
+ return ERROR_OK;
+}
+
+int jtag_add_sleep(u32 us)
+{
+ jtag_command_t **last_cmd = jtag_get_last_command_p();
+
+ /* allocate memory for a new list member */
+ *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t));
+ (*last_cmd)->next = NULL;
+ last_comand_pointer = &((*last_cmd)->next);
+ (*last_cmd)->type = JTAG_SLEEP;
+
+ (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
+ (*last_cmd)->cmd.sleep->us = us;
+
+ return ERROR_OK;
+}
+
+int jtag_scan_size(scan_command_t *cmd)
+{
+ int bit_count = 0;
+ int i;
+
+ /* count bits in scan command */
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ bit_count += cmd->fields[i].num_bits;
+ }
+
+ return bit_count;
+}
+
+int jtag_build_buffer(scan_command_t *cmd, u8 **buffer)
+{
+ int bit_count = 0;
+ int i;
+
+ bit_count = jtag_scan_size(cmd);
+ *buffer = malloc(CEIL(bit_count, 8));
+
+ bit_count = 0;
+
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ if (cmd->fields[i].out_value)
+ {
+#ifdef _DEBUG_JTAG_IO_
+ char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16);
+#endif
+ buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits);
+#ifdef _DEBUG_JTAG_IO_
+ DEBUG("fields[%i].out_value: 0x%s", i, char_buf);
+ free(char_buf);
+#endif
+ }
+
+ bit_count += cmd->fields[i].num_bits;
+ }
+
+ return bit_count;
+
+}
+
+int jtag_read_buffer(u8 *buffer, scan_command_t *cmd)
+{
+ int i;
+ int bit_count = 0;
+ int retval;
+
+ /* we return ERROR_OK, unless a check fails, or a handler reports a problem */
+ retval = ERROR_OK;
+
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ /* if neither in_value nor in_handler
+ * are specified we don't have to examine this field
+ */
+ if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
+ {
+ int num_bits = cmd->fields[i].num_bits;
+ u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits);
+
+#ifdef _DEBUG_JTAG_IO_
+ char *char_buf;
+
+ char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
+ DEBUG("fields[%i].in_value: 0x%s", i, char_buf);
+ free(char_buf);
+#endif
+
+ if (cmd->fields[i].in_value)
+ {
+ buf_cpy(captured, cmd->fields[i].in_value, num_bits);
+
+ if (cmd->fields[i].in_handler)
+ {
+ if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
+ {
+ WARNING("in_handler reported a failed check");
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ }
+ }
+ }
+
+ /* no in_value specified, but a handler takes care of the scanned data */
+ if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value))
+ {
+ if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK)
+ {
+ /* We're going to call the error:handler later, but if the in_handler
+ * reported an error we report this failure upstream
+ */
+ WARNING("in_handler reported a failed check");
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ }
+ }
+
+ free(captured);
+ }
+ bit_count += cmd->fields[i].num_bits;
+ }
+
+ return retval;
+}
+
+int jtag_check_value(u8 *captured, void *priv, scan_field_t *field)
+{
+ int retval = ERROR_OK;
+ int num_bits = field->num_bits;
+
+ int compare_failed = 0;
+
+ if (field->in_check_mask)
+ compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits);
+ else
+ compare_failed = buf_cmp(captured, field->in_check_value, num_bits);
+
+ if (compare_failed)
+ {
+ /* An error handler could have caught the failing check
+ * only report a problem when there wasn't a handler, or if the handler
+ * acknowledged the error
+ */
+ if (compare_failed)
+ {
+ char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16);
+ char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16);
+
+ if (field->in_check_mask)
+ {
+ char *in_check_mask_char;
+ in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16);
+ WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char);
+ free(in_check_mask_char);
+ }
+ else
+ {
+ WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char);
+ }
+
+ free(captured_char);
+ free(in_check_value_char);
+
+ retval = ERROR_JTAG_QUEUE_FAILED;
+ }
+
+ }
+ return retval;
+}
+
+/*
+ set up checking of this field using the in_handler. The values passed in must be valid until
+ after jtag_execute() has completed.
+ */
+void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler)
+{
+ if (value)
+ field->in_handler = jtag_check_value;
+ else
+ field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */
+ field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */
+ field->in_check_value = value;
+ field->in_check_mask = mask;
+}
+
+enum scan_type jtag_scan_type(scan_command_t *cmd)
+{
+ int i;
+ int type = 0;
+
+ for (i = 0; i < cmd->num_fields; i++)
+ {
+ if (cmd->fields[i].in_value || cmd->fields[i].in_handler)
+ type |= SCAN_IN;
+ if (cmd->fields[i].out_value)
+ type |= SCAN_OUT;
+ }
+
+ return type;
+}
+
+int jtag_execute_queue(void)
+{
+ int retval;
+
+ retval = jtag->execute_queue();
+
+ cmd_queue_free();
+
+ jtag_command_queue = NULL;
+ last_comand_pointer = &jtag_command_queue;
+
+ return retval;
+}
+
+int jtag_reset_callback(enum jtag_event event, void *priv)
+{
+ jtag_device_t *device = priv;
+
+ DEBUG("-");
+
+ if (event == JTAG_TRST_ASSERTED)
+ {
+ buf_set_ones(device->cur_instr, device->ir_length);
+ device->bypass = 1;
+ }
+
+ return ERROR_OK;
+}
+
+void jtag_sleep(u32 us)
+{
+ usleep(us);
+}
+
+/* Try to examine chain layout according to IEEE 1149.1 §12
+ */
+int jtag_examine_chain()
+{
+ jtag_device_t *device = jtag_devices;
+ scan_field_t field;
+ u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4];
+ int i;
+ int bit_count;
+ int device_count = 0;
+ u8 zero_check = 0x0;
+ u8 one_check = 0xff;
+
+ field.device = 0;
+ field.num_bits = sizeof(idcode_buffer) * 8;
+ field.out_value = idcode_buffer;
+ field.out_mask = NULL;
+ field.in_value = idcode_buffer;
+ field.in_check_value = NULL;
+ field.in_check_mask = NULL;
+ field.in_handler = NULL;
+ field.in_handler_priv = NULL;
+
+ for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++)
+ {
+ buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF);
+ }
+
+ jtag_add_plain_dr_scan(1, &field, TAP_TLR);
+ jtag_execute_queue();
+
+ for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++)
+ {
+ zero_check |= idcode_buffer[i];
+ one_check &= idcode_buffer[i];
+ }
+
+ /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */
+ if ((zero_check == 0x00) || (one_check == 0xff))
+ {
+ ERROR("JTAG communication failure, check connection, JTAG interface, target power etc.");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;)
+ {
+ u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32);
+ if ((idcode & 1) == 0)
+ {
+ /* LSB must not be 0, this indicates a device in bypass */
+ device_count++;
+
+ bit_count += 1;
+ }
+ else
+ {
+ u32 manufacturer;
+ u32 part;
+ u32 version;
+
+ if (idcode == 0x000000FF)
+ {
+ /* End of chain (invalid manufacturer ID) */
+ break;
+ }
+
+ if (device)
+ {
+ device->idcode = idcode;
+ device = device->next;
+ }
+ device_count++;
+
+ manufacturer = (idcode & 0xffe) >> 1;
+ part = (idcode & 0xffff000) >> 12;
+ version = (idcode & 0xf0000000) >> 28;
+
+ INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)",
+ idcode, manufacturer, part, version);
+
+ bit_count += 32;
+ }
+ }
+
+ /* see if number of discovered devices matches configuration */
+ if (device_count != jtag_num_devices)
+ {
+ ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)",
+ device_count, jtag_num_devices);
+ ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ERROR_OK;
+}
+
+int jtag_validate_chain()
+{
+ jtag_device_t *device = jtag_devices;
+ int total_ir_length = 0;
+ u8 *ir_test = NULL;
+ scan_field_t field;
+ int chain_pos = 0;
+
+ while (device)
+ {
+ total_ir_length += device->ir_length;
+ device = device->next;
+ }
+
+ total_ir_length += 2;
+ ir_test = malloc(CEIL(total_ir_length, 8));
+ buf_set_ones(ir_test, total_ir_length);
+
+ field.device = 0;
+ field.num_bits = total_ir_length;
+ field.out_value = ir_test;
+ field.out_mask = NULL;
+ field.in_value = ir_test;
+ field.in_check_value = NULL;
+ field.in_check_mask = NULL;
+ field.in_handler = NULL;
+ field.in_handler_priv = NULL;
+
+ jtag_add_plain_ir_scan(1, &field, TAP_TLR);
+ jtag_execute_queue();
+
+ device = jtag_devices;
+ while (device)
+ {
+ if (buf_get_u32(ir_test, chain_pos, 2) != 0x1)
+ {
+ char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
+ ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
+ free(cbuf);
+ free(ir_test);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+ chain_pos += device->ir_length;
+ device = device->next;
+ }
+
+ if (buf_get_u32(ir_test, chain_pos, 2) != 0x3)
+ {
+ char *cbuf = buf_to_str(ir_test, total_ir_length, 16);
+ ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf);
+ free(cbuf);
+ free(ir_test);
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ free(ir_test);
+
+ return ERROR_OK;
+}
+
+int jtag_register_commands(struct command_context_s *cmd_ctx)
+{
+ register_command(cmd_ctx, NULL, "interface", handle_interface_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command,
+ COMMAND_ANY, "set jtag speed (if supported) <speed>");
+ register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command,
+ COMMAND_CONFIG, "jtag_device <ir_length> <ir_expected> <ir_mask>");
+ register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
+ COMMAND_CONFIG, NULL);
+ register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
+ COMMAND_CONFIG, NULL);
+
+ register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
+ COMMAND_EXEC, "print current scan chain configuration");
+
+ register_command(cmd_ctx, NULL, "endstate", handle_endstate_command,
+ COMMAND_EXEC, "finish JTAG operations in <tap_state>");
+ register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command,
+ COMMAND_EXEC, "toggle reset lines <trst> <srst>");
+ register_command(cmd_ctx, NULL, "runtest", handle_runtest_command,
+ COMMAND_EXEC, "move to Run-Test/Idle, and execute <num_cycles>");
+ register_command(cmd_ctx, NULL, "statemove", handle_statemove_command,
+ COMMAND_EXEC, "move to current endstate or [tap_state]");
+ register_command(cmd_ctx, NULL, "irscan", handle_irscan_command,
+ COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ...");
+ register_command(cmd_ctx, NULL, "drscan", handle_drscan_command,
+ COMMAND_EXEC, "execute DR scan <device> <var> [dev2] [var2] ...");
+
+ register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command,
+ COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>");
+ return ERROR_OK;
+}
+
+int jtag_interface_init(struct command_context_s *cmd_ctx)
+{
+ if (!jtag_interface)
+ {
+ /* nothing was previously specified by "interface" command */
+ ERROR("JTAG interface has to be specified, see \"interface\" command");
+ return ERROR_JTAG_INVALID_INTERFACE;
+ }
+
+ if (jtag_interface->init() != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ jtag = jtag_interface;
+ return ERROR_OK;
+}
+
+int jtag_init(struct command_context_s *cmd_ctx)
+{
+ int i, validate_tries = 0;
+ jtag_device_t *device;
+
+ DEBUG("-");
+
+ if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ device = jtag_devices;
+ jtag_ir_scan_size = 0;
+ jtag_num_devices = 0;
+ while (device != NULL)
+ {
+ jtag_ir_scan_size += device->ir_length;
+ jtag_num_devices++;
+ device = device->next;
+ }
+
+ jtag_add_statemove(TAP_TLR);
+ jtag_execute_queue();
+
+ /* examine chain first, as this could discover the real chain layout */
+ if (jtag_examine_chain() != ERROR_OK)
+ {
+ ERROR("trying to validate configured JTAG chain anyway...");
+ }
+
+ while (jtag_validate_chain() != ERROR_OK)
+ {
+ validate_tries++;
+ if (validate_tries > 5)
+ {
+ ERROR("Could not validate JTAG chain, exit");
+ jtag = NULL;
+ return ERROR_JTAG_INVALID_INTERFACE;
+ }
+ usleep(10000);
+ }
+
+ return ERROR_OK;
+}
+
+int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int i;
+
+ /* check whether the interface is already configured */
+ if (jtag_interface)
+ {
+ WARNING("Interface already configured, ignoring");
+ return ERROR_OK;
+ }
+
+ /* interface name is a mandatory argument */
+ if (argc < 1 || args[0][0] == '\0')
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ for (i=0; jtag_interfaces[i]; i++)
+ {
+ if (strcmp(args[0], jtag_interfaces[i]->name) == 0)
+ {
+ if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK)
+ exit(-1);
+
+ jtag_interface = jtag_interfaces[i];
+ return ERROR_OK;
+ }
+ }
+
+ /* no valid interface was found (i.e. the configuration option,
+ * didn't match one of the compiled-in interfaces
+ */
+ ERROR("No valid jtag interface found (%s)", args[0]);
+ ERROR("compiled-in jtag interfaces:");
+ for (i = 0; jtag_interfaces[i]; i++)
+ {
+ ERROR("%i: %s", i, jtag_interfaces[i]->name);
+ }
+
+ return ERROR_JTAG_INVALID_INTERFACE;
+}
+
+int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ jtag_device_t **last_device_p = &jtag_devices;
+
+ if (*last_device_p)
+ {
+ while ((*last_device_p)->next)
+ last_device_p = &((*last_device_p)->next);
+ last_device_p = &((*last_device_p)->next);
+ }
+
+ if (argc < 3)
+ return ERROR_OK;
+
+ *last_device_p = malloc(sizeof(jtag_device_t));
+ (*last_device_p)->ir_length = strtoul(args[0], NULL, 0);
+
+ (*last_device_p)->expected = malloc((*last_device_p)->ir_length);
+ buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0));
+ (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length);
+ buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0));
+
+ (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length);
+ (*last_device_p)->bypass = 1;
+ buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length);
+
+ (*last_device_p)->next = NULL;
+
+ jtag_register_event_callback(jtag_reset_callback, (*last_device_p));
+
+ jtag_num_devices++;
+
+ return ERROR_OK;
+}
+
+int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ jtag_device_t *device = jtag_devices;
+ int device_count = 0;
+
+ while (device)
+ {
+ u32 expected, expected_mask, cur_instr;
+ expected = buf_get_u32(device->expected, 0, device->ir_length);
+ expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length);
+ cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length);
+ command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr);
+ device = device->next;
+ device_count++;
+ }
+
+ return ERROR_OK;
+}
+
+int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc >= 1)
+ {
+ if (strcmp(args[0], "none") == 0)
+ jtag_reset_config = RESET_NONE;
+ else if (strcmp(args[0], "trst_only") == 0)
+ jtag_reset_config = RESET_HAS_TRST;
+ else if (strcmp(args[0], "srst_only") == 0)
+ jtag_reset_config = RESET_HAS_SRST;
+ else if (strcmp(args[0], "trst_and_srst") == 0)
+ jtag_reset_config = RESET_TRST_AND_SRST;
+ else
+ {
+ ERROR("invalid reset_config argument, defaulting to none");
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ if (argc >= 2)
+ {
+ if (strcmp(args[1], "srst_pulls_trst") == 0)
+ jtag_reset_config |= RESET_SRST_PULLS_TRST;
+ else if (strcmp(args[1], "trst_pulls_srst") == 0)
+ jtag_reset_config |= RESET_TRST_PULLS_SRST;
+ else if (strcmp(args[1], "combined") == 0)
+ jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
+ else if (strcmp(args[1], "separate") == 0)
+ jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST);
+ else
+ {
+ ERROR("invalid reset_config argument, defaulting to none");
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ if (argc >= 3)
+ {
+ if (strcmp(args[2], "trst_open_drain") == 0)
+ jtag_reset_config |= RESET_TRST_OPEN_DRAIN;
+ else if (strcmp(args[2], "trst_push_pull") == 0)
+ jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN;
+ else
+ {
+ ERROR("invalid reset_config argument, defaulting to none");
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ if (argc >= 4)
+ {
+ if (strcmp(args[3], "srst_push_pull") == 0)
+ jtag_reset_config |= RESET_SRST_PUSH_PULL;
+ else if (strcmp(args[3], "srst_open_drain") == 0)
+ jtag_reset_config &= ~RESET_SRST_PUSH_PULL;
+ else
+ {
+ ERROR("invalid reset_config argument, defaulting to none");
+ jtag_reset_config = RESET_NONE;
+ return ERROR_INVALID_ARGUMENTS;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc < 1)
+ {
+ ERROR("jtag_nsrst_delay <ms> command takes one required argument");
+ exit(-1);
+ }
+ else
+ {
+ jtag_nsrst_delay = strtoul(args[0], NULL, 0);
+ }
+
+ return ERROR_OK;
+}
+
+int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc < 1)
+ {
+ ERROR("jtag_ntrst_delay <ms> command takes one required argument");
+ exit(-1);
+ }
+ else
+ {
+ jtag_ntrst_delay = strtoul(args[0], NULL, 0);
+ }
+
+ return ERROR_OK;
+}
+
+int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc == 0)
+ command_print(cmd_ctx, "jtag_speed: %i", jtag_speed);
+
+ if (argc > 0)
+ {
+ /* this command can be called during CONFIG,
+ * in which case jtag isn't initialized */
+ if (jtag)
+ jtag->speed(strtoul(args[0], NULL, 0));
+ else
+ jtag_speed = strtoul(args[0], NULL, 0);
+ }
+
+ return ERROR_OK;
+}
+
+int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ enum tap_state state;
+
+ if (argc < 1)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ else
+ {
+ for (state = 0; state < 16; state++)
+ {
+ if (strcmp(args[0], tap_state_strings[state]) == 0)
+ {
+ jtag_add_end_state(state);
+ jtag_execute_queue();
+ }
+ }
+ }
+ command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]);
+
+ return ERROR_OK;
+}
+
+int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int trst = -1;
+ int srst = -1;
+ int retval;
+
+ if (argc < 2)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ }
+
+ if (args[0][0] == '1')
+ trst = 1;
+ else if (args[0][0] == '0')
+ trst = 0;
+ else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (args[1][0] == '1')
+ srst = 1;
+ else if (args[1][0] == '0')
+ srst = 0;
+ else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK)
+ {
+ switch (retval)
+ {
+ case ERROR_JTAG_RESET_WOULD_ASSERT_TRST:
+ command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]);
+ break;
+ case ERROR_JTAG_RESET_CANT_SRST:
+ command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it");
+ break;
+ default:
+ command_print(cmd_ctx, "unknown error");
+ }
+ }
+ jtag_execute_queue();
+
+ return ERROR_OK;
+}
+
+int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc < 1)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ jtag_add_runtest(strtol(args[0], NULL, 0), -1);
+ jtag_execute_queue();
+
+ return ERROR_OK;
+
+}
+
+int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ enum tap_state state;
+
+ state = -1;
+ if (argc == 1)
+ {
+ for (state = 0; state < 16; state++)
+ {
+ if (strcmp(args[0], tap_state_strings[state]) == 0)
+ {
+ break;
+ }
+ }
+ }
+
+ jtag_add_statemove(state);
+ jtag_execute_queue();
+
+ return ERROR_OK;
+
+}
+
+int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ int i;
+ scan_field_t *fields;
+
+ if ((argc < 2) || (argc % 2))
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ fields = malloc(sizeof(scan_field_t) * argc / 2);
+
+ for (i = 0; i < argc / 2; i++)
+ {
+ int device = strtoul(args[i*2], NULL, 0);
+ int field_size = jtag_get_device(device)->ir_length;
+ fields[i].device = device;
+ fields[i].out_value = malloc(CEIL(field_size, 8));
+ buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0));
+ fields[i].out_mask = NULL;
+ fields[i].in_value = NULL;
+ fields[i].in_check_mask = NULL;
+ fields[i].in_handler = NULL;
+ fields[i].in_handler_priv = NULL;
+ }
+
+ jtag_add_ir_scan(argc / 2, fields, -1);
+ jtag_execute_queue();
+
+ for (i = 0; i < argc / 2; i++)
+ free(fields[i].out_value);
+
+ free (fields);
+
+ return ERROR_OK;
+}
+
+int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ scan_field_t *fields;
+ int num_fields = 0;
+ int field_count = 0;
+ var_t *var;
+ int i, j;
+
+ if ((argc < 2) || (argc % 2))
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ for (i = 0; i < argc; i+=2)
+ {
+ var = get_var_by_namenum(args[i+1]);
+ if (var)
+ {
+ num_fields += var->num_fields;
+ }
+ else
+ {
+ command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]);
+ return ERROR_OK;
+ }
+ }
+
+ fields = malloc(sizeof(scan_field_t) * num_fields);
+
+ for (i = 0; i < argc; i+=2)
+ {
+ var = get_var_by_namenum(args[i+1]);
+
+ for (j = 0; j < var->num_fields; j++)
+ {
+ fields[field_count].device = strtol(args[i], NULL, 0);
+ fields[field_count].num_bits = var->fields[j].num_bits;
+ fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8));
+ buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value);
+ fields[field_count].out_mask = NULL;
+ fields[field_count].in_value = fields[field_count].out_value;
+ fields[field_count].in_check_mask = NULL;
+ fields[field_count].in_check_value = NULL;
+ fields[field_count].in_handler = field_le_to_host;
+ fields[field_count++].in_handler_priv = &(var->fields[j]);
+ }
+ }
+
+ jtag_add_dr_scan(num_fields, fields, -1);
+ jtag_execute_queue();
+
+ for (i = 0; i < argc / 2; i++)
+ free(fields[i].out_value);
+
+ free(fields);
+
+ return ERROR_OK;
+}
+
+int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc == 1)
+ {
+ if (strcmp(args[0], "enable") == 0)
+ {
+ jtag_verify_capture_ir = 1;
+ }
+ else if (strcmp(args[0], "disable") == 0)
+ {
+ jtag_verify_capture_ir = 0;
+ } else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+ } else if (argc != 0)
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled");
+
+ return ERROR_OK;
+}
projects / fw / openocd / blobdiff