X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fjtag%2Fjtag.c;h=56a8075b155b9ab06f0731f5089bb145fa067414;hb=ff2737b429f563c57ab255fa2479725c9f057028;hp=80707b15b28832a013c3135de623e43d4c2aa542;hpb=6fda8707668c413a78f44ae4f58a79f5765376c2;p=openocd.git diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index 80707b15b2..56a8075b15 100644 --- a/src/jtag/jtag.c +++ b/src/jtag/jtag.c @@ -5,6 +5,10 @@ * Copyright (C) 2007,2008 Øyvind Harboe * * oyvind.harboe@zylin.com * * * + * Copyright (C) 2009 SoftPLC Corporation * + * http://softplc.com * + * dick@softplc.com * + * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * @@ -24,16 +28,17 @@ #include "config.h" #endif -#include "replacements.h" - #include "jtag.h" -#include "command.h" -#include "log.h" +#ifdef HAVE_STRINGS_H +#include +#endif + + +int jtag_flush_queue_count; /* count # of flushes for profiling / debugging purposes */ -#include "stdlib.h" -#include "string.h" -#include +static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state), + int in_num_fields, scan_field_t *in_fields, tap_state_t state); /* note that this is not marked as static as it must be available from outside jtag.c for those that implement the jtag_xxx() minidriver layer @@ -50,52 +55,6 @@ typedef struct cmd_queue_page_s #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 - * - * DRSHIFT->DRSHIFT and IRSHIFT->IRSHIFT have to be caught in interface specific code - */ -u8 tap_move[6][6] = -{ -/* RESET IDLE DRSHIFT DRPAUSE IRSHIFT IRPAUSE */ - { 0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* RESET */ - { 0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* IDLE */ - { 0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* DRSHIFT */ - { 0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* DRPAUSE */ - { 0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* IRSHIFT */ - { 0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* IRPAUSE */ -}; - -int tap_move_map[16] = { - 0, -1, -1, 2, -1, 3, -1, -1, - 1, -1, -1, 4, -1, 5, -1, -1 -}; - -tap_transition_t tap_transitions[16] = -{ - {TAP_RESET, TAP_IDLE}, /* RESET */ - {TAP_IRSELECT, TAP_DRCAPTURE}, /* DRSELECT */ - {TAP_DREXIT1, TAP_DRSHIFT}, /* DRCAPTURE */ - {TAP_DREXIT1, TAP_DRSHIFT}, /* DRSHIFT */ - {TAP_DRUPDATE, TAP_DRPAUSE}, /* DREXIT1 */ - {TAP_DREXIT2, TAP_DRPAUSE}, /* DRPAUSE */ - {TAP_DRUPDATE, TAP_DRSHIFT}, /* DREXIT2 */ - {TAP_DRSELECT, TAP_IDLE}, /* DRUPDATE */ - {TAP_DRSELECT, TAP_IDLE}, /* IDLE */ - {TAP_RESET, TAP_IRCAPTURE}, /* IRSELECT */ - {TAP_IREXIT1, TAP_IRSHIFT}, /* IRCAPTURE */ - {TAP_IREXIT1, TAP_IRSHIFT}, /* IRSHIFT */ - {TAP_IRUPDATE, TAP_IRPAUSE}, /* IREXIT1 */ - {TAP_IREXIT2, TAP_IRPAUSE}, /* IRPAUSE */ - {TAP_IRUPDATE, TAP_IRSHIFT}, /* IREXIT2 */ - {TAP_DRSELECT, TAP_IDLE} /* IRUPDATE */ -}; - char* jtag_event_strings[] = { "JTAG controller reset (RESET or TRST)" @@ -108,29 +67,41 @@ const Jim_Nvp nvp_jtag_tap_event[] = { { .name = NULL, .value = -1 } }; -/* kludge!!!! these are just global variables that the - * interface use internally. They really belong - * inside the drivers, but we don't want to break - * linking the drivers!!!! - */ -enum tap_state end_state = TAP_RESET; -enum tap_state cur_state = TAP_RESET; int jtag_trst = 0; int jtag_srst = 0; +#ifndef HAVE_JTAG_MINIDRIVER_H +struct jtag_callback_entry +{ + struct jtag_callback_entry *next; + + jtag_callback_t callback; + u8 *in; + jtag_callback_data_t data1; + jtag_callback_data_t data2; + jtag_callback_data_t data3; +}; + + +static struct jtag_callback_entry *jtag_callback_queue_head = NULL; +static struct jtag_callback_entry *jtag_callback_queue_tail = NULL; +#endif + + jtag_command_t *jtag_command_queue = NULL; -jtag_command_t **last_comand_pointer = &jtag_command_queue; +jtag_command_t **last_command_pointer = &jtag_command_queue; static jtag_tap_t *jtag_all_taps = NULL; enum reset_types jtag_reset_config = RESET_NONE; -enum tap_state cmd_queue_end_state = TAP_RESET; -enum tap_state cmd_queue_cur_state = TAP_RESET; +tap_state_t cmd_queue_end_state = TAP_RESET; +tap_state_t cmd_queue_cur_state = TAP_RESET; int jtag_verify_capture_ir = 1; +int jtag_verify = 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 */ +static int jtag_nsrst_delay = 0; /* default to no nSRST delay */ +static int jtag_ntrst_delay = 0; /* default to no nTRST delay */ /* maximum number of JTAG devices expected in the chain */ @@ -203,6 +174,10 @@ static int hasKHz = 0; extern jtag_interface_t rlink_interface; #endif +#if BUILD_ARMJTAGEW == 1 + extern jtag_interface_t armjtagew_interface; +#endif + jtag_interface_t *jtag_interfaces[] = { #if BUILD_ECOSBOARD == 1 &zy1000_interface, @@ -245,6 +220,9 @@ jtag_interface_t *jtag_interfaces[] = { #endif #if BUILD_RLINK == 1 &rlink_interface, +#endif +#if BUILD_ARMJTAGEW == 1 + &armjtagew_interface, #endif NULL, }; @@ -252,35 +230,38 @@ jtag_interface_t *jtag_interfaces[] = { jtag_interface_t *jtag = NULL; /* configuration */ -jtag_interface_t *jtag_interface = NULL; +static jtag_interface_t *jtag_interface = NULL; int jtag_speed = 0; /* forward declarations */ -void jtag_add_pathmove(int num_states, enum tap_state *path); -void jtag_add_runtest(int num_cycles, enum tap_state endstate); -void jtag_add_end_state(enum tap_state endstate); -void jtag_add_sleep(u32 us); -int jtag_execute_queue(void); - +//void jtag_add_pathmove(int num_states, tap_state_t *path); +//void jtag_add_runtest(int num_cycles, tap_state_t endstate); +//void jtag_add_end_state(tap_state_t endstate); +//void jtag_add_sleep(u32 us); +//int jtag_execute_queue(void); +static tap_state_t tap_state_by_name(const char *name); /* jtag commands */ -int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv); - -int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv); +static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args); + +static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); jtag_tap_t *jtag_AllTaps(void) { @@ -317,14 +298,13 @@ int jtag_NumEnabledTaps(void) return n; } - jtag_tap_t *jtag_TapByString( const char *s ) { jtag_tap_t *t; char *cp; t = jtag_AllTaps(); - // try name first + /* try name first */ while(t){ if( 0 == strcmp( t->dotted_name, s ) ){ break; @@ -332,7 +312,7 @@ jtag_tap_t *jtag_TapByString( const char *s ) t = t->next_tap; } } - // backup plan is by number + /* backup plan is by number */ if( t == NULL ){ /* ok - is "s" a number? */ int n; @@ -457,9 +437,24 @@ jtag_command_t** jtag_get_last_command_p(void) return &cmd->next;*/ - return last_comand_pointer; + return last_command_pointer; } + +void jtag_queue_command(jtag_command_t * cmd) +{ + jtag_command_t **last_cmd; + + last_cmd = jtag_get_last_command_p(); + + *last_cmd = cmd; + + (*last_cmd)->next = NULL; + + last_command_pointer = &((*last_cmd)->next); +} + + void* cmd_queue_alloc(size_t size) { cmd_queue_page_t **p_page = &cmd_queue_pages; @@ -536,6 +531,20 @@ void cmd_queue_free(void) cmd_queue_pages = NULL; } +/** + * Copy a scan_field_t for insertion into the queue. + * + * This allocates a new copy of out_value using cmd_queue_alloc. + */ +static void cmd_queue_scan_field_clone(scan_field_t * dst, const scan_field_t * src) +{ + dst->tap = src->tap; + dst->num_bits = src->num_bits; + dst->out_value = buf_cpy(src->out_value, cmd_queue_alloc(CEIL(src->num_bits, 8)), src->num_bits); + dst->in_value = src->in_value; +} + + static void jtag_prelude1(void) { if (jtag_trst == 1) @@ -549,415 +558,485 @@ static void jtag_prelude1(void) jtag_call_event_callbacks(JTAG_TRST_ASSERTED); } -static void jtag_prelude(enum tap_state state) +static void jtag_prelude(tap_state_t state) { jtag_prelude1(); - if (state != -1) + if (state != TAP_INVALID) jtag_add_end_state(state); cmd_queue_cur_state = cmd_queue_end_state; } -void jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) +void jtag_add_ir_scan_noverify(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) { int retval; - jtag_prelude(state); - retval=interface_jtag_add_ir_scan(num_fields, fields, cmd_queue_end_state); + retval=interface_jtag_add_ir_scan(in_num_fields, in_fields, cmd_queue_end_state); if (retval!=ERROR_OK) jtag_error=retval; + } -int MINIDRIVER(interface_jtag_add_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state) + +/** + * Generate an IR SCAN with a list of scan fields with one entry for each enabled TAP. + * + * If the input field list contains an instruction value for a TAP then that is used + * otherwise the TAP is set to bypass. + * + * TAPs for which no fields are passed are marked as bypassed for subsequent DR SCANs. + * + */ +void jtag_add_ir_scan(int in_num_fields, scan_field_t *in_fields, tap_state_t state) { - jtag_command_t **last_cmd; - jtag_tap_t *tap; - int j; - int x; - int nth_tap; - int scan_size = 0; + if (jtag_verify&&jtag_verify_capture_ir) + { + /* 8 x 32 bit id's is enough for all invoations */ + + for (int j = 0; j < in_num_fields; j++) + { + in_fields[j].check_value=NULL; + in_fields[j].check_mask=NULL; + /* if we are to run a verification of the ir scan, we need to get the input back. + * We may have to allocate space if the caller didn't ask for the input back. + */ + in_fields[j].check_value=in_fields[j].tap->expected; + in_fields[j].check_mask=in_fields[j].tap->expected_mask; + } + jtag_add_scan_check(jtag_add_ir_scan_noverify, in_num_fields, in_fields, state); + } else + { + jtag_add_ir_scan_noverify(in_num_fields, in_fields, state); + } +} +/** + * see jtag_add_ir_scan() + * + */ +int MINIDRIVER(interface_jtag_add_ir_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) +{ + size_t num_taps = jtag_NumEnabledTaps(); - last_cmd = jtag_get_last_command_p(); + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t)); + scan_field_t * out_fields = cmd_queue_alloc(num_taps * sizeof(scan_field_t)); - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_SCAN; - - /* allocate memory for ir scan command */ - (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); - (*last_cmd)->cmd.scan->ir_scan = 1; - x = jtag_NumEnabledTaps(); - (*last_cmd)->cmd.scan->num_fields = x; /* one field per device */ - (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(x * sizeof(scan_field_t)); - (*last_cmd)->cmd.scan->end_state = state; - - nth_tap = -1; - tap = NULL; - for(;;){ - int found = 0; + jtag_queue_command(cmd); - // do this here so it is not forgotten - tap = jtag_NextEnabledTap(tap); - if( tap == NULL ){ - break; - } - nth_tap++; - scan_size = tap->ir_length; - (*last_cmd)->cmd.scan->fields[nth_tap].tap = tap; - (*last_cmd)->cmd.scan->fields[nth_tap].num_bits = scan_size; - (*last_cmd)->cmd.scan->fields[nth_tap].in_value = NULL; - (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = NULL; /* disable verification by default */ + cmd->type = JTAG_SCAN; + cmd->cmd.scan = scan; + + scan->ir_scan = true; + scan->num_fields = num_taps; /* one field per device */ + scan->fields = out_fields; + scan->end_state = state; + + + scan_field_t * field = out_fields; /* keep track where we insert data */ + + /* loop over all enabled TAPs */ + + for (jtag_tap_t * tap = jtag_NextEnabledTap(NULL); tap != NULL; tap = jtag_NextEnabledTap(tap)) + { + /* search the input field list for fields for the current TAP */ + + bool found = false; - /* search the list */ - for (j = 0; j < num_fields; j++) + for (int j = 0; j < in_num_fields; j++) { - if (tap == fields[j].tap) - { - found = 1; - (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[nth_tap].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); + if (tap != in_fields[j].tap) + continue; - if (jtag_verify_capture_ir) - { - if (fields[j].in_handler==NULL) - { - jtag_set_check_value((*last_cmd)->cmd.scan->fields+nth_tap, tap->expected, tap->expected_mask, NULL); - } else - { - (*last_cmd)->cmd.scan->fields[nth_tap].in_handler = fields[j].in_handler; - (*last_cmd)->cmd.scan->fields[nth_tap].in_handler_priv = fields[j].in_handler_priv; - (*last_cmd)->cmd.scan->fields[nth_tap].in_check_value = tap->expected; - (*last_cmd)->cmd.scan->fields[nth_tap].in_check_mask = tap->expected_mask; - } - } + /* if TAP is listed in input fields, copy the value */ - tap->bypass = 0; - break; - } + found = true; + + tap->bypass = 0; + + assert(in_fields[j].num_bits == tap->ir_length); /* input fields must have the same length as the TAP's IR */ + + cmd_queue_scan_field_clone(field, in_fields + j); + + break; } if (!found) { - /* if a tap isn't listed, set it to BYPASS */ - (*last_cmd)->cmd.scan->fields[nth_tap].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[nth_tap].out_mask = NULL; + /* if a TAP isn't listed in input fields, set it to BYPASS */ + tap->bypass = 1; + + field->tap = tap; + field->num_bits = tap->ir_length; + field->out_value = buf_set_ones(cmd_queue_alloc(CEIL(tap->ir_length, 8)), tap->ir_length); + field->in_value = NULL; /* do not collect input for tap's in bypass */ } /* update device information */ - buf_cpy((*last_cmd)->cmd.scan->fields[nth_tap].out_value, tap->cur_instr, scan_size); + buf_cpy(field->out_value, tap->cur_instr, tap->ir_length); + + field++; } + assert(field == out_fields + num_taps); /* paranoia: jtag_NumEnabledTaps() and jtag_NextEnabledTap() not in sync */ + return ERROR_OK; } -void jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) +/** + * Duplicate the scan fields passed into the function into an IR SCAN command + * + * This function assumes that the caller handles extra fields for bypassed TAPs + * + */ +void jtag_add_plain_ir_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) { int retval; jtag_prelude(state); - retval=interface_jtag_add_plain_ir_scan(num_fields, fields, cmd_queue_end_state); + retval=interface_jtag_add_plain_ir_scan(in_num_fields, in_fields, cmd_queue_end_state); if (retval!=ERROR_OK) jtag_error=retval; } -int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int num_fields, scan_field_t *fields, enum tap_state state) + +/** + * see jtag_add_plain_ir_scan() + * + */ +int MINIDRIVER(interface_jtag_add_plain_ir_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) { - int i; - jtag_command_t **last_cmd; - last_cmd = jtag_get_last_command_p(); + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t)); + scan_field_t * out_fields = cmd_queue_alloc(in_num_fields * sizeof(scan_field_t)); + + jtag_queue_command(cmd); + + cmd->type = JTAG_SCAN; + cmd->cmd.scan = scan; + + scan->ir_scan = true; + scan->num_fields = in_num_fields; + scan->fields = out_fields; + scan->end_state = state; + + for (int i = 0; i < in_num_fields; i++) + cmd_queue_scan_field_clone(out_fields + i, in_fields + i); - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_SCAN; - - /* allocate memory for ir scan command */ - (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); - (*last_cmd)->cmd.scan->ir_scan = 1; - (*last_cmd)->cmd.scan->num_fields = num_fields; - (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t)); - (*last_cmd)->cmd.scan->end_state = state; - - for( i = 0 ; i < num_fields ; i++ ){ - int num_bits = fields[i].num_bits; - int num_bytes = CEIL(fields[i].num_bits, 8); - (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap; - (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits; - (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value; - (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value; - (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask; - (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; - (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL; - } return ERROR_OK; } -void jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) + + +int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits); + +static int jtag_check_value_mask_callback(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3) +{ + return jtag_check_value_inner(in, (u8 *)data1, (u8 *)data2, (int)data3); +} + +static void jtag_add_scan_check(void (*jtag_add_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state), + int in_num_fields, scan_field_t *in_fields, tap_state_t state) +{ + for (int i = 0; i < in_num_fields; i++) + { + in_fields[i].allocated = 0; + in_fields[i].modified = 0; + if ((in_fields[i].check_value != NULL) && (in_fields[i].in_value == NULL)) + { + in_fields[i].modified = 1; + /* we need storage space... */ +#ifdef HAVE_JTAG_MINIDRIVER_H + if (in_fields[i].num_bits <= 32) + { + /* This is enough space and we're executing this synchronously */ + in_fields[i].in_value = in_fields[i].intmp; + } else + { + in_fields[i].in_value = (u8 *)malloc(CEIL(in_fields[i].num_bits, 8)); + in_fields[i].allocated = 1; + } +#else + in_fields[i].in_value = (u8 *)cmd_queue_alloc(CEIL(in_fields[i].num_bits, 8)); +#endif + } + } + + jtag_add_scan(in_num_fields, in_fields, state); + + for (int i = 0; i < in_num_fields; i++) + { + if ((in_fields[i].check_value != NULL) && (in_fields[i].in_value != NULL)) + { + /* this is synchronous for a minidriver */ + jtag_add_callback4(jtag_check_value_mask_callback, in_fields[i].in_value, + (jtag_callback_data_t)in_fields[i].check_value, + (jtag_callback_data_t)in_fields[i].check_mask, + (jtag_callback_data_t)in_fields[i].num_bits); + } + if (in_fields[i].allocated) + { + free(in_fields[i].in_value); + } + if (in_fields[i].modified) + { + in_fields[i].in_value = NULL; + } + } +} + +void jtag_add_dr_scan_check(int in_num_fields, scan_field_t *in_fields, tap_state_t state) +{ + if (jtag_verify) + { + jtag_add_scan_check(jtag_add_dr_scan, in_num_fields, in_fields, state); + } else + { + jtag_add_dr_scan(in_num_fields, in_fields, state); + } +} + + +/** + * Generate a DR SCAN using the fields passed to the function + * + * For not bypassed TAPs the function checks in_fields and uses fields specified there. + * For bypassed TAPs the function generates a dummy 1bit field. + * + * The bypass status of TAPs is set by jtag_add_ir_scan(). + * + */ +void jtag_add_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) { int retval; jtag_prelude(state); - retval=interface_jtag_add_dr_scan(num_fields, fields, cmd_queue_end_state); + retval=interface_jtag_add_dr_scan(in_num_fields, in_fields, cmd_queue_end_state); if (retval!=ERROR_OK) jtag_error=retval; } -int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state) + +/** + * see jtag_add_dr_scan() + * + */ +int MINIDRIVER(interface_jtag_add_dr_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) { - int j; - int nth_tap; - int bypass_devices = 0; - int field_count = 0; - int scan_size; + /* count devices in bypass */ - jtag_command_t **last_cmd = jtag_get_last_command_p(); - jtag_tap_t *tap; + size_t bypass_devices = 0; - /* count devices in bypass */ - tap = NULL; - bypass_devices = 0; - for(;;){ - tap = jtag_NextEnabledTap(tap); - if( tap == NULL ){ - break; - } - if( tap->bypass ){ + for (jtag_tap_t * tap = jtag_NextEnabledTap(NULL); tap != NULL; tap = jtag_NextEnabledTap(tap)) + { + if (tap->bypass) bypass_devices++; - } } - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->next = NULL; - (*last_cmd)->type = JTAG_SCAN; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t)); + scan_field_t * out_fields = cmd_queue_alloc((in_num_fields + bypass_devices) * sizeof(scan_field_t)); + + jtag_queue_command(cmd); + + cmd->type = JTAG_SCAN; + cmd->cmd.scan = 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; + scan->ir_scan = false; + scan->num_fields = in_num_fields + bypass_devices; + scan->fields = out_fields; + scan->end_state = state; - tap = NULL; - nth_tap = -1; - for(;;){ - nth_tap++; - tap = jtag_NextEnabledTap(tap); - if( tap == NULL ){ - break; - } - int found = 0; - (*last_cmd)->cmd.scan->fields[field_count].tap = tap; - for (j = 0; j < num_fields; j++) - { - if (tap == fields[j].tap) - { - found = 1; - scan_size = fields[j].num_bits; - (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size; - (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value; - (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value; - (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask; - (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler; - (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv; - } - } - if (!found) + scan_field_t * field = out_fields; /* keep track where we insert data */ + + /* loop over all enabled TAPs */ + + for (jtag_tap_t * tap = jtag_NextEnabledTap(NULL); tap != NULL; tap = jtag_NextEnabledTap(tap)) + { + /* if TAP is not bypassed insert matching input fields */ + + if (!tap->bypass) { -#ifdef _DEBUG_JTAG_IO_ - /* if a device isn't listed, the BYPASS register should be selected */ - if (! tap->bypass) + scan_field_t * start_field = field; /* keep initial position for assert() */ + + for (int j = 0; j < in_num_fields; j++) { - LOG_ERROR("BUG: no scan data for a device not in BYPASS"); - exit(-1); + if (tap != in_fields[j].tap) + continue; + + cmd_queue_scan_field_clone(field, in_fields + j); + + field++; } -#endif - /* program the scan field to 1 bit length, and ignore it's value */ - (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1; - (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL; - (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL; + + assert(field > start_field); /* must have at least one input field per not bypassed TAP */ } + + /* if a TAP is bypassed, generated a dummy bit*/ else { -#ifdef _DEBUG_JTAG_IO_ - /* if a device is listed, the BYPASS register must not be selected */ - if (tap->bypass) - { - LOG_ERROR("BUG: scan data for a device in BYPASS"); - exit(-1); - } -#endif + field->tap = tap; + field->num_bits = 1; + field->out_value = NULL; + field->in_value = NULL; + + field++; } } + + assert(field == out_fields + scan->num_fields); /* no superfluous input fields permitted */ + return ERROR_OK; } + + +/** + * Generate a DR SCAN using the array of output values passed to the function + * + * This function assumes that the parameter target_tap specifies the one TAP + * that is not bypassed. All other TAPs must be bypassed and the function will + * generate a dummy 1bit field for them. + * + * For the target_tap a sequence of output-only fields will be generated where + * each field has the size num_bits and the field's values are taken from + * the array value. + * + * The bypass status of TAPs is set by jtag_add_ir_scan(). + * + */ void MINIDRIVER(interface_jtag_add_dr_out)(jtag_tap_t *target_tap, - int num_fields, + int in_num_fields, const int *num_bits, const u32 *value, - enum tap_state end_state) + tap_state_t end_state) { - int nth_tap; - int field_count = 0; - int scan_size; - int bypass_devices = 0; + /* count devices in bypass */ - jtag_command_t **last_cmd = jtag_get_last_command_p(); - jtag_tap_t *tap; + size_t bypass_devices = 0; - /* count devices in bypass */ - tap = NULL; - bypass_devices = 0; - for(;;){ - tap = jtag_NextEnabledTap(tap); - if( tap == NULL ){ - break; - } - if( tap->bypass ){ + for (jtag_tap_t * tap = jtag_NextEnabledTap(NULL); tap != NULL; tap = jtag_NextEnabledTap(tap)) + { + if (tap->bypass) bypass_devices++; - } } - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->next = NULL; - (*last_cmd)->type = JTAG_SCAN; - /* allocate memory for dr scan command */ - (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); - (*last_cmd)->cmd.scan->ir_scan = 0; - (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices; - (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t)); - (*last_cmd)->cmd.scan->end_state = end_state; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t)); + scan_field_t * out_fields = cmd_queue_alloc((in_num_fields + bypass_devices) * sizeof(scan_field_t)); + + jtag_queue_command(cmd); + + cmd->type = JTAG_SCAN; + cmd->cmd.scan = scan; + + scan->ir_scan = false; + scan->num_fields = in_num_fields + bypass_devices; + scan->fields = out_fields; + scan->end_state = end_state; - tap = NULL; - nth_tap = -1; - for(;;){ - tap = jtag_NextEnabledTap(tap); - if( tap == NULL ){ - break; - } - nth_tap++; - (*last_cmd)->cmd.scan->fields[field_count].tap = tap; - if (tap == target_tap) + bool target_tap_match = false; + + scan_field_t * field = out_fields; /* keep track where we insert data */ + + /* loop over all enabled TAPs */ + + for (jtag_tap_t * tap = jtag_NextEnabledTap(NULL); tap != NULL; tap = jtag_NextEnabledTap(tap)) + { + /* if TAP is not bypassed insert matching input fields */ + + if (!tap->bypass) { - int j; -#ifdef _DEBUG_JTAG_IO_ - /* if a device is listed, the BYPASS register must not be selected */ - if (tap->bypass) - { - LOG_ERROR("BUG: scan data for a device in BYPASS"); - exit(-1); - } -#endif - for (j = 0; j < num_fields; j++) + assert(tap == target_tap); /* target_tap must match the one not bypassed TAP */ + + target_tap_match = true; + + for (int j = 0; j < in_num_fields; j++) { u8 out_value[4]; - scan_size = num_bits[j]; + size_t scan_size = num_bits[j]; buf_set_u32(out_value, 0, scan_size, value[j]); - (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size; - (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL; - (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL; + + field->tap = tap; + field->num_bits = scan_size; + field->out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); + field->in_value = NULL; + + field++; } - } else + } + + /* if a TAP is bypassed, generated a dummy bit*/ + else { -#ifdef _DEBUG_JTAG_IO_ - /* if a device isn't listed, the BYPASS register should be selected */ - if (! tap->bypass) - { - LOG_ERROR("BUG: no scan data for a device not in BYPASS"); - exit(-1); - } -#endif - /* program the scan field to 1 bit length, and ignore it's value */ - (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1; - (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL; - (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL; + + field->tap = tap; + field->num_bits = 1; + field->out_value = NULL; + field->in_value = NULL; + + field++; } } + + assert(target_tap_match); /* target_tap should be enabled and not bypassed */ } -void jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) + +/** + * Duplicate the scan fields passed into the function into a DR SCAN command + * + * This function assumes that the caller handles extra fields for bypassed TAPs + * + */ +void jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) { int retval; jtag_prelude(state); - retval=interface_jtag_add_plain_dr_scan(num_fields, fields, cmd_queue_end_state); + retval=interface_jtag_add_plain_dr_scan(in_num_fields, in_fields, cmd_queue_end_state); if (retval!=ERROR_OK) jtag_error=retval; } -int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int num_fields, scan_field_t *fields, enum tap_state state) + +/** + * see jtag_add_plain_dr_scan() + * + */ +int MINIDRIVER(interface_jtag_add_plain_dr_scan)(int in_num_fields, const scan_field_t *in_fields, tap_state_t state) { - int i; - jtag_command_t **last_cmd = jtag_get_last_command_p(); + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t)); + scan_field_t * out_fields = cmd_queue_alloc(in_num_fields * sizeof(scan_field_t)); - /* 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; + jtag_queue_command(cmd); - /* 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; + cmd->type = JTAG_SCAN; + cmd->cmd.scan = scan; - for (i = 0; i < num_fields; i++) - { - int num_bits = fields[i].num_bits; - int num_bytes = CEIL(fields[i].num_bits, 8); - (*last_cmd)->cmd.scan->fields[i].tap = fields[i].tap; - (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits; - (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value; - (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value; - (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask; - (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler; - (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv; - } + scan->ir_scan = false; + scan->num_fields = in_num_fields; + scan->fields = out_fields; + scan->end_state = state; + + for (int i = 0; i < in_num_fields; i++) + cmd_queue_scan_field_clone(out_fields + i, in_fields + i); return ERROR_OK; } + void jtag_add_tlr(void) { jtag_prelude(TAP_RESET); @@ -970,29 +1049,29 @@ void jtag_add_tlr(void) int MINIDRIVER(interface_jtag_add_tlr)(void) { - enum tap_state state = TAP_RESET; - jtag_command_t **last_cmd = jtag_get_last_command_p(); + tap_state_t state = TAP_RESET; /* 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; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t)); - (*last_cmd)->cmd.statemove->end_state = state; + jtag_queue_command(cmd); + + cmd->type = JTAG_STATEMOVE; + + cmd->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t)); + cmd->cmd.statemove->end_state = state; return ERROR_OK; } -void jtag_add_pathmove(int num_states, enum tap_state *path) +void jtag_add_pathmove(int num_states, const tap_state_t *path) { - enum tap_state cur_state=cmd_queue_cur_state; + tap_state_t cur_state = cmd_queue_cur_state; int i; int retval; /* the last state has to be a stable state */ - if (tap_move_map[path[num_states - 1]] == -1) + if (!tap_is_state_stable(path[num_states - 1])) { LOG_ERROR("BUG: TAP path doesn't finish in a stable state"); exit(-1); @@ -1005,10 +1084,11 @@ void jtag_add_pathmove(int num_states, enum tap_state *path) LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences"); exit(-1); } - if ((tap_transitions[cur_state].low != path[i])&& - (tap_transitions[cur_state].high != path[i])) + + if ( tap_state_transition(cur_state, true) != path[i] + && tap_state_transition(cur_state, false) != path[i]) { - LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", jtag_state_name(cur_state), jtag_state_name(path[i])); + LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[i])); exit(-1); } cur_state = path[i]; @@ -1016,51 +1096,48 @@ void jtag_add_pathmove(int num_states, enum tap_state *path) jtag_prelude1(); - retval=interface_jtag_add_pathmove(num_states, path); + retval = interface_jtag_add_pathmove(num_states, path); cmd_queue_cur_state = path[num_states - 1]; if (retval!=ERROR_OK) jtag_error=retval; } -int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, enum tap_state *path) +int MINIDRIVER(interface_jtag_add_pathmove)(int num_states, const tap_state_t *path) { - jtag_command_t **last_cmd = jtag_get_last_command_p(); - int i; - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->next = NULL; - (*last_cmd)->type = JTAG_PATHMOVE; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*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); + jtag_queue_command(cmd); - for (i = 0; i < num_states; i++) - (*last_cmd)->cmd.pathmove->path[i] = path[i]; + cmd->type = JTAG_PATHMOVE; + + cmd->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t)); + cmd->cmd.pathmove->num_states = num_states; + cmd->cmd.pathmove->path = cmd_queue_alloc(sizeof(tap_state_t) * num_states); + + for (int i = 0; i < num_states; i++) + cmd->cmd.pathmove->path[i] = path[i]; return ERROR_OK; } -int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, enum tap_state state) +int MINIDRIVER(interface_jtag_add_runtest)(int num_cycles, tap_state_t state) { - jtag_command_t **last_cmd = jtag_get_last_command_p(); - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_RUNTEST; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + + jtag_queue_command(cmd); + + 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; + cmd->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t)); + cmd->cmd.runtest->num_cycles = num_cycles; + cmd->cmd.runtest->end_state = state; return ERROR_OK; } -void jtag_add_runtest(int num_cycles, enum tap_state state) +void jtag_add_runtest(int num_cycles, tap_state_t state) { int retval; @@ -1075,16 +1152,16 @@ void jtag_add_runtest(int num_cycles, enum tap_state state) int MINIDRIVER(interface_jtag_add_clocks)( int num_cycles ) { - 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_STABLECLOCKS; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + + jtag_queue_command(cmd); + + cmd->type = JTAG_STABLECLOCKS; + + cmd->cmd.stableclocks = cmd_queue_alloc(sizeof(stableclocks_command_t)); + cmd->cmd.stableclocks->num_cycles = num_cycles; - (*last_cmd)->cmd.stableclocks = cmd_queue_alloc(sizeof(stableclocks_command_t)); - (*last_cmd)->cmd.stableclocks->num_cycles = num_cycles; return ERROR_OK; } @@ -1092,11 +1169,22 @@ void jtag_add_clocks( int num_cycles ) { int retval; - jtag_prelude1(); + if( !tap_is_state_stable(cmd_queue_cur_state) ) + { + LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"", + tap_state_name(cmd_queue_cur_state) ); + jtag_error = ERROR_JTAG_NOT_STABLE_STATE; + return; + } - retval=interface_jtag_add_clocks(num_cycles); - if (retval!=ERROR_OK) - jtag_error=retval; + if( num_cycles > 0 ) + { + jtag_prelude1(); + + retval = interface_jtag_add_clocks(num_cycles); + if (retval != ERROR_OK) + jtag_error=retval; + } } void jtag_add_reset(int req_tlr_or_trst, int req_srst) @@ -1165,6 +1253,7 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst) jtag_error=retval; return; } + jtag_execute_queue(); if (jtag_srst) { @@ -1192,7 +1281,7 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst) * and inform possible listeners about this */ LOG_DEBUG("TRST line asserted"); - cmd_queue_cur_state = TAP_RESET; + tap_set_state(TAP_RESET); jtag_call_event_callbacks(JTAG_TRST_ASSERTED); } else @@ -1204,22 +1293,21 @@ void jtag_add_reset(int req_tlr_or_trst, int req_srst) int MINIDRIVER(interface_jtag_add_reset)(int req_trst, int req_srst) { - jtag_command_t **last_cmd = jtag_get_last_command_p(); - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_RESET; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + + jtag_queue_command(cmd); - (*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; + cmd->type = JTAG_RESET; + + cmd->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t)); + cmd->cmd.reset->trst = req_trst; + cmd->cmd.reset->srst = req_srst; return ERROR_OK; } -void jtag_add_end_state(enum tap_state state) +void jtag_add_end_state(tap_state_t state) { cmd_queue_end_state = state; if ((cmd_queue_end_state == TAP_DRSHIFT)||(cmd_queue_end_state == TAP_IRSHIFT)) @@ -1230,16 +1318,15 @@ void jtag_add_end_state(enum tap_state state) int MINIDRIVER(interface_jtag_add_sleep)(u32 us) { - jtag_command_t **last_cmd = jtag_get_last_command_p(); - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_SLEEP; + jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t)); - (*last_cmd)->cmd.sleep->us = us; + jtag_queue_command(cmd); + + cmd->type = JTAG_SLEEP; + + cmd->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t)); + cmd->cmd.sleep->us = us; return ERROR_OK; } @@ -1253,7 +1340,7 @@ void jtag_add_sleep(u32 us) return; } -int jtag_scan_size(scan_command_t *cmd) +int jtag_scan_size(const scan_command_t *cmd) { int bit_count = 0; int i; @@ -1267,18 +1354,18 @@ int jtag_scan_size(scan_command_t *cmd) return bit_count; } -int jtag_build_buffer(scan_command_t *cmd, u8 **buffer) +int jtag_build_buffer(const scan_command_t *cmd, u8 **buffer) { int bit_count = 0; int i; bit_count = jtag_scan_size(cmd); - *buffer = malloc(CEIL(bit_count, 8)); + *buffer = calloc(1,CEIL(bit_count, 8)); bit_count = 0; #ifdef _DEBUG_JTAG_IO_ - LOG_DEBUG("num_fields: %i",cmd->num_fields); + LOG_DEBUG("%s num_fields: %i", cmd->ir_scan ? "IRSCAN" : "DRSCAN", cmd->num_fields); #endif for (i = 0; i < cmd->num_fields; i++) @@ -1286,7 +1373,7 @@ int jtag_build_buffer(scan_command_t *cmd, u8 **buffer) 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); + char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : 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_ @@ -1294,17 +1381,24 @@ int jtag_build_buffer(scan_command_t *cmd, u8 **buffer) free(char_buf); #endif } + else + { +#ifdef _DEBUG_JTAG_IO_ + LOG_DEBUG("fields[%i].out_value[%i]: NULL", i, cmd->fields[i].num_bits); +#endif + } bit_count += cmd->fields[i].num_bits; + } + #ifdef _DEBUG_JTAG_IO_ - LOG_DEBUG("bit_count totalling: %i", bit_count ); + //LOG_DEBUG("bit_count totalling: %i", bit_count ); #endif - } return bit_count; } -int jtag_read_buffer(u8 *buffer, scan_command_t *cmd) +int jtag_read_buffer(u8 *buffer, const scan_command_t *cmd) { int i; int bit_count = 0; @@ -1318,13 +1412,13 @@ int jtag_read_buffer(u8 *buffer, scan_command_t *cmd) /* 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) + if (cmd->fields[i].in_value) { 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 = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16); + char *char_buf = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16); LOG_DEBUG("fields[%i].in_value[%i]: 0x%s", i, num_bits, char_buf); free(char_buf); #endif @@ -1332,28 +1426,6 @@ int jtag_read_buffer(u8 *buffer, scan_command_t *cmd) if (cmd->fields[i].in_value) { buf_cpy(captured, cmd->fields[i].in_value, num_bits); - - if (cmd->fields[i].in_handler) - { - if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK) - { - LOG_WARNING("in_handler: with \"in_value\", mismatch in %s", cmd->ir_scan ? "SIR" : "SDR" ); - retval = ERROR_JTAG_QUEUE_FAILED; - } - } - } - - /* no in_value specified, but a handler takes care of the scanned data */ - if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value)) - { - if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK) - { - /* We're going to call the error:handler later, but if the in_handler - * reported an error we report this failure upstream - */ - LOG_WARNING("in_handler: w/o \"in_value\", mismatch in %s", cmd->ir_scan ? "SIR" : "SDR" ); - retval = ERROR_JTAG_QUEUE_FAILED; - } } free(captured); @@ -1364,34 +1436,40 @@ int jtag_read_buffer(u8 *buffer, scan_command_t *cmd) return retval; } -int jtag_check_value(u8 *captured, void *priv, scan_field_t *field) +static const char *jtag_tap_name(const jtag_tap_t *tap) +{ + return (tap == NULL) ? "(unknown)" : tap->dotted_name; +} + +int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits) { 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); + if (in_check_mask) + compare_failed = buf_cmp_mask(captured, in_check_value, in_check_mask, num_bits); else - compare_failed = buf_cmp(captured, field->in_check_value, num_bits); + compare_failed = buf_cmp(captured, in_check_value, num_bits); if (compare_failed){ /* An error handler could have caught the failing check * only report a problem when there wasn't a handler, or if the handler * acknowledged the error */ + /* LOG_WARNING("TAP %s:", - (field->tap == NULL) ? "(unknown)" : field->tap->dotted_name ); + jtag_tap_name(field->tap)); + */ 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); + char *captured_char = buf_to_str(captured, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16); + char *in_check_value_char = buf_to_str(in_check_value, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16); - if (field->in_check_mask) + if (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); + in_check_mask_char = buf_to_str(in_check_mask, (num_bits > DEBUG_JTAG_IOZ) ? DEBUG_JTAG_IOZ : num_bits, 16); LOG_WARNING("value captured during scan didn't pass the requested check:"); LOG_WARNING("captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char); @@ -1412,29 +1490,32 @@ int jtag_check_value(u8 *captured, void *priv, scan_field_t *field) 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) +void jtag_check_value_mask(scan_field_t *field, u8 *value, u8 *mask) { - if (value) - field->in_handler = jtag_check_value; - else - field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */ - field->in_handler_priv = NULL; - field->in_check_value = value; - field->in_check_mask = mask; + assert(field->in_value != NULL); + + if (value==NULL) + { + /* no checking to do */ + return; + } + + jtag_execute_queue_noclear(); + + int retval=jtag_check_value_inner(field->in_value, value, mask, field->num_bits); + jtag_set_error(retval); } -enum scan_type jtag_scan_type(scan_command_t *cmd) + + +enum scan_type jtag_scan_type(const 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) + if (cmd->fields[i].in_value) type |= SCAN_IN; if (cmd->fields[i].out_value) type |= SCAN_OUT; @@ -1443,7 +1524,47 @@ enum scan_type jtag_scan_type(scan_command_t *cmd) return type; } -int MINIDRIVER(interface_jtag_execute_queue)(void) + +#ifndef HAVE_JTAG_MINIDRIVER_H +/* add callback to end of queue */ +void jtag_add_callback4(jtag_callback_t callback, u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3) +{ + struct jtag_callback_entry *entry=cmd_queue_alloc(sizeof(struct jtag_callback_entry)); + + entry->next=NULL; + entry->callback=callback; + entry->in=in; + entry->data1=data1; + entry->data2=data2; + entry->data3=data3; + + if (jtag_callback_queue_head==NULL) + { + jtag_callback_queue_head=entry; + jtag_callback_queue_tail=entry; + } else + { + jtag_callback_queue_tail->next=entry; + jtag_callback_queue_tail=entry; + } +} + + +static int jtag_convert_to_callback4(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3) +{ + ((jtag_callback1_t)data1)(in); + return ERROR_OK; +} + +void jtag_add_callback(jtag_callback1_t callback, u8 *in) +{ + jtag_add_callback4(jtag_convert_to_callback4, in, (jtag_callback_data_t)callback, 0, 0); +} +#endif + +#ifndef HAVE_JTAG_MINIDRIVER_H + +int interface_jtag_execute_queue(void) { int retval; @@ -1455,21 +1576,49 @@ int MINIDRIVER(interface_jtag_execute_queue)(void) retval = jtag->execute_queue(); + if (retval == ERROR_OK) + { + struct jtag_callback_entry *entry; + for (entry=jtag_callback_queue_head; entry!=NULL; entry=entry->next) + { + retval=entry->callback(entry->in, entry->data1, entry->data2, entry->data3); + if (retval!=ERROR_OK) + break; + } + } + cmd_queue_free(); + jtag_callback_queue_head = NULL; + jtag_callback_queue_tail = NULL; + jtag_command_queue = NULL; - last_comand_pointer = &jtag_command_queue; + last_command_pointer = &jtag_command_queue; return retval; } +#endif -int jtag_execute_queue(void) +void jtag_execute_queue_noclear(void) { + /* each flush can take as much as 1-2ms on high bandwidth low latency interfaces. + * E.g. a JTAG over TCP/IP or USB.... + */ + jtag_flush_queue_count++; + int retval=interface_jtag_execute_queue(); - if (retval==ERROR_OK) + /* we keep the first error */ + if ((jtag_error==ERROR_OK)&&(retval!=ERROR_OK)) { - retval=jtag_error; + jtag_error=retval; } +} + +int jtag_execute_queue(void) +{ + int retval; + jtag_execute_queue_noclear(); + retval=jtag_error; jtag_error=ERROR_OK; return retval; } @@ -1510,12 +1659,11 @@ int jtag_examine_chain(void) field.tap = NULL; field.num_bits = sizeof(idcode_buffer) * 8; field.out_value = idcode_buffer; - field.out_mask = NULL; + field.in_value = idcode_buffer; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = NULL; - field.in_handler_priv = NULL; + + + for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++) { @@ -1538,7 +1686,7 @@ int jtag_examine_chain(void) return ERROR_JTAG_INIT_FAILED; } - // point at the 1st tap + /* point at the 1st tap */ tap = jtag_NextEnabledTap(NULL); if( tap == NULL ){ LOG_ERROR("JTAG: No taps enabled?"); @@ -1562,7 +1710,9 @@ int jtag_examine_chain(void) u32 part; u32 version; - if (idcode == 0x000000FF) + /* some devices, such as AVR will output all 1's instead of TDI + input value at end of chain. */ + if ((idcode == 0x000000FF)||(idcode == 0xFFFFFFFF)) { int unexpected=0; /* End of chain (invalid manufacturer ID) @@ -1579,7 +1729,7 @@ int jtag_examine_chain(void) for (bit_count += 32; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;bit_count += 32) { idcode = buf_get_u32(idcode_buffer, bit_count, 32); - if (unexpected||(idcode != 0x000000FF)) + if (unexpected||((idcode != 0x000000FF)&&(idcode != 0xFFFFFFFF))) { LOG_WARNING("Unexpected idcode after end of chain! %d 0x%08x", bit_count, idcode); unexpected = 1; @@ -1686,29 +1836,26 @@ int jtag_validate_chain(void) field.tap = NULL; field.num_bits = total_ir_length; field.out_value = ir_test; - field.out_mask = NULL; field.in_value = ir_test; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = NULL; - field.in_handler_priv = NULL; + jtag_add_plain_ir_scan(1, &field, TAP_RESET); jtag_execute_queue(); tap = NULL; chain_pos = 0; + int val; for(;;){ tap = jtag_NextEnabledTap(tap); if( tap == NULL ){ break; } - - if (buf_get_u32(ir_test, chain_pos, 2) != 0x1) + val = buf_get_u32(ir_test, chain_pos, 2); + if (val != 0x1) { char *cbuf = buf_to_str(ir_test, total_ir_length, 16); - LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf); + LOG_ERROR("Could not validate JTAG scan chain, IR mismatch, scan returned 0x%s. tap=%s pos=%d expected 0x1 got %0x", cbuf, jtag_tap_name(tap), chain_pos, val); free(cbuf); free(ir_test); return ERROR_JTAG_INIT_FAILED; @@ -1716,10 +1863,11 @@ int jtag_validate_chain(void) chain_pos += tap->ir_length; } - if (buf_get_u32(ir_test, chain_pos, 2) != 0x3) + val = buf_get_u32(ir_test, chain_pos, 2); + if (val != 0x3) { char *cbuf = buf_to_str(ir_test, total_ir_length, 16); - LOG_ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf); + LOG_ERROR("Could not validate end of JTAG scan chain, IR mismatch, scan returned 0x%s. pos=%d expected 0x3 got %0x", cbuf, chain_pos, val); free(cbuf); free(ir_test); return ERROR_JTAG_INIT_FAILED; @@ -1740,9 +1888,7 @@ static Jim_Nvp nvp_config_opts[] = { { .name = NULL, .value = -1 } }; -static int -jtag_tap_configure_cmd( Jim_GetOptInfo *goi, - jtag_tap_t * tap) +static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap) { Jim_Nvp *n; Jim_Obj *o; @@ -1789,7 +1935,7 @@ jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jteap = tap->event_action; /* replace existing? */ while (jteap) { - if (jteap->event == n->value) { + if (jteap->event == (enum jtag_tap_event)n->value) { break; } jteap = jteap->next; @@ -2169,9 +2315,10 @@ int jtag_register_commands(struct command_context_s *cmd_ctx) register_command(cmd_ctx, NULL, "interface", handle_interface_command, COMMAND_CONFIG, "try to configure interface"); register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command, - COMMAND_ANY, "set jtag speed (if supported)"); + COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)"); register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command, - COMMAND_ANY, "same as jtag_speed, except it takes maximum khz as arguments. 0 KHz = RTCK."); + COMMAND_ANY, "set maximum jtag speed (if supported); " + "parameter is maximum khz, or 0 for adaptive clocking (RTCK)."); register_command(cmd_ctx, NULL, "jtag_device", handle_jtag_device_command, COMMAND_CONFIG, "jtag_device "); register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command, @@ -2194,9 +2341,14 @@ int jtag_register_commands(struct command_context_s *cmd_ctx) register_command(cmd_ctx, NULL, "irscan", handle_irscan_command, COMMAND_EXEC, "execute IR scan [dev2] [instr2] ..."); register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan ..."); + register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed"); register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command, COMMAND_ANY, "verify value captured during Capture-IR "); + register_command(cmd_ctx, NULL, "verify_jtag", handle_verify_jtag_command, + COMMAND_ANY, "verify value capture "); + register_command(cmd_ctx, NULL, "tms_sequence", handle_tms_sequence_command, + COMMAND_ANY, "choose short(default) or long tms_sequence "); return ERROR_OK; } @@ -2249,7 +2401,7 @@ static int jtag_init_inner(struct command_context_s *cmd_ctx) if (jtag_validate_chain() != ERROR_OK) { - LOG_ERROR("Could not validate JTAG chain, continuing anyway..."); + LOG_WARNING("Could not validate JTAG chain, continuing anyway..."); } return ERROR_OK; @@ -2336,7 +2488,7 @@ static int default_srst_asserted(int *srst_asserted) return ERROR_OK; } -int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { int i; int retval; @@ -2399,7 +2551,7 @@ int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char return ERROR_JTAG_INVALID_INTERFACE; } -int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { int e; char buf[1024]; @@ -2422,9 +2574,9 @@ int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, cha args[0], args[1], args[2] ); - command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundryscan(len5)"); - command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\""); - command_print( cmd_ctx, "jtag newtap stm32 boundry ....., and the tap: \"stm32.boundery\""); + command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + boundaryscan(len5)"); + command_print( cmd_ctx, "jtag newtap stm32 cortexm3 ....., thus creating the tap: \"stm32.cortexm3\""); + command_print( cmd_ctx, "jtag newtap stm32 boundary ....., and the tap: \"stm32.boundary\""); command_print( cmd_ctx, "And then refer to the taps by the dotted name."); newargs[0] = Jim_NewStringObj( interp, "jtag", -1 ); @@ -2460,7 +2612,7 @@ int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, cha return e; } -int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { jtag_tap_t *tap; @@ -2497,7 +2649,7 @@ int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char return ERROR_OK; } -int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc < 1) return ERROR_COMMAND_SYNTAX_ERROR; @@ -2573,7 +2725,7 @@ int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, ch return ERROR_OK; } -int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc < 1) { @@ -2588,7 +2740,7 @@ int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd return ERROR_OK; } -int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc < 1) { @@ -2603,7 +2755,7 @@ int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd return ERROR_OK; } -int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { int retval=ERROR_OK; @@ -2631,7 +2783,7 @@ int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char return retval; } -int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { int retval=ERROR_OK; LOG_DEBUG("handle jtag khz"); @@ -2681,9 +2833,9 @@ int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char * } -int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { - enum tap_state state; + tap_state_t state; if (argc < 1) { @@ -2691,21 +2843,20 @@ int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char * } else { - for (state = 0; state < 16; state++) - { - if (strcmp(args[0], jtag_state_name(state)) == 0) - { - jtag_add_end_state(state); - jtag_execute_queue(); - } + state = tap_state_by_name( args[0] ); + if( state < 0 ){ + command_print( cmd_ctx, "Invalid state name: %s\n", args[0] ); + return ERROR_COMMAND_SYNTAX_ERROR; } + jtag_add_end_state(state); + jtag_execute_queue(); } - command_print(cmd_ctx, "current endstate: %s", jtag_state_name(cmd_queue_end_state)); + command_print(cmd_ctx, "current endstate: %s", tap_state_name(cmd_queue_end_state)); return ERROR_OK; } -int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { int trst = -1; int srst = -1; @@ -2742,34 +2893,64 @@ int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char return ERROR_OK; } -int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static 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_add_runtest(strtol(args[0], NULL, 0), TAP_INVALID); jtag_execute_queue(); return ERROR_OK; } -int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { int i; scan_field_t *fields; jtag_tap_t *tap; + tap_state_t endstate; if ((argc < 2) || (argc % 2)) { return ERROR_COMMAND_SYNTAX_ERROR; } - fields = malloc(sizeof(scan_field_t) * argc / 2); + /* optional "-endstate" */ + /* "statename" */ + /* at the end of the arguments. */ + /* assume none. */ + endstate = cmd_queue_end_state; + if( argc >= 4 ){ + /* have at least one pair of numbers. */ + /* is last pair the magic text? */ + if( 0 == strcmp( "-endstate", args[ argc - 2 ] ) ){ + const char *cpA; + const char *cpS; + cpA = args[ argc-1 ]; + for( endstate = 0 ; endstate < TAP_NUM_STATES ; endstate++ ){ + cpS = tap_state_name( endstate ); + if( 0 == strcmp( cpA, cpS ) ){ + break; + } + } + if( endstate >= TAP_NUM_STATES ){ + return ERROR_COMMAND_SYNTAX_ERROR; + } else { + /* found - remove the last 2 args */ + argc -= 2; + } + } + } + + int num_fields = argc / 2; + + fields = malloc(sizeof(scan_field_t) * num_fields); - for (i = 0; i < argc / 2; i++) + for (i = 0; i < num_fields; i++) { tap = jtag_TapByString( args[i*2] ); if (tap==NULL) @@ -2779,27 +2960,26 @@ int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **a } int field_size = tap->ir_length; fields[i].tap = tap; + fields[i].num_bits = field_size; 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(); + /* did we have an endstate? */ + jtag_add_ir_scan(num_fields, fields, endstate); + + int retval=jtag_execute_queue(); - for (i = 0; i < argc / 2; i++) + for (i = 0; i < num_fields; i++) free(fields[i].out_value); free (fields); - return ERROR_OK; + return retval; } -int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) +static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) { int retval; scan_field_t *fields; @@ -2807,11 +2987,16 @@ int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) int field_count = 0; int i, e; jtag_tap_t *tap; + tap_state_t endstate; /* args[1] = device * args[2] = num_bits * args[3] = hex string * ... repeat num bits and hex string ... + * + * .. optionally: + * args[N-2] = "-endstate" + * args[N-1] = statename */ if ((argc < 4) || ((argc % 2)!=0)) { @@ -2819,14 +3004,54 @@ int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) return JIM_ERR; } + /* assume no endstate */ + endstate = cmd_queue_end_state; + /* validate arguments as numbers */ + e = JIM_OK; for (i = 2; i < argc; i+=2) { long bits; + const char *cp; e = Jim_GetLong(interp, args[i], &bits); - if (e != JIM_OK) + /* If valid - try next arg */ + if( e == JIM_OK ){ + continue; + } + + /* Not valid.. are we at the end? */ + if ( ((i+2) != argc) ){ + /* nope, then error */ return e; - } + } + + /* it could be: "-endstate FOO" */ + + /* get arg as a string. */ + cp = Jim_GetString( args[i], NULL ); + /* is it the magic? */ + if( 0 == strcmp( "-endstate", cp ) ){ + /* is the statename valid? */ + cp = Jim_GetString( args[i+1], NULL ); + + /* see if it is a valid state name */ + endstate = tap_state_by_name(cp); + if( endstate < 0 ){ + /* update the error message */ + Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp ); + } else { + /* valid - so clear the error */ + e = JIM_OK; + /* and remove the last 2 args */ + argc -= 2; + } + } + + /* Still an error? */ + if( e != JIM_OK ){ + return e; /* too bad */ + } + } /* validate args */ tap = jtag_TapByJimObj( interp, args[1] ); if( tap == NULL ){ @@ -2848,15 +3073,12 @@ int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) fields[field_count].num_bits = bits; fields[field_count].out_value = malloc(CEIL(bits, 8)); str_to_buf(str, len, fields[field_count].out_value, bits, 0); - fields[field_count].out_mask = NULL; fields[field_count].in_value = fields[field_count].out_value; - fields[field_count].in_check_mask = NULL; - fields[field_count].in_check_value = NULL; - fields[field_count].in_handler = NULL; - fields[field_count++].in_handler_priv = NULL; + field_count++; } - jtag_add_dr_scan(num_fields, fields, -1); + jtag_add_dr_scan(num_fields, fields, endstate); + retval = jtag_execute_queue(); if (retval != ERROR_OK) { @@ -2887,7 +3109,16 @@ int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) return JIM_OK; } -int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) + +static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args) +{ + Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_flush_queue_count)); + + return JIM_OK; +} + + +static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc == 1) { @@ -2912,6 +3143,32 @@ int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd return ERROR_OK; } +static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc == 1) + { + if (strcmp(args[0], "enable") == 0) + { + jtag_verify = 1; + } + else if (strcmp(args[0], "disable") == 0) + { + jtag_verify = 0; + } else + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + } else if (argc != 0) + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + command_print(cmd_ctx, "verify jtag capture is %s", (jtag_verify) ? "enabled": "disabled"); + + return ERROR_OK; +} + + int jtag_power_dropout(int *dropout) { return jtag->power_dropout(dropout); @@ -2953,15 +3210,315 @@ void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e) } } -/* map state number to SVF state string */ -const char* jtag_state_name(enum tap_state state) +/*--------------------------------------------*/ + +/* these Cable Helper API functions are all documented in the jtag.h header file, + using a Doxygen format. And since Doxygen's configuration file "Doxyfile", + is setup to prefer its docs in the header file, no documentation is here, for + if it were, it would have to be doubly maintained. +*/ + +/** + * @see tap_set_state() and tap_get_state() accessors. + * Actual name is not important since accessors hide it. + */ +static tap_state_t state_follower = TAP_RESET; + +void tap_set_state_impl( tap_state_t new_state ) +{ + /* this is the state we think the TAPs are in now, was cur_state */ + state_follower = new_state; +} + +tap_state_t tap_get_state() +{ + return state_follower; +} + +/** + * @see tap_set_end_state() and tap_get_end_state() accessors. + * Actual name is not important because accessors hide it. + */ +static tap_state_t end_state_follower = TAP_RESET; + +void tap_set_end_state( tap_state_t new_end_state ) +{ + /* this is the state we think the TAPs will be in at completion of the + current TAP operation, was end_state + */ + end_state_follower = new_end_state; +} + +tap_state_t tap_get_end_state() +{ + return end_state_follower; +} + + +int tap_move_ndx( tap_state_t astate ) +{ + /* given a stable state, return the index into the tms_seqs[] array within tap_get_tms_path() */ + + int ndx; + + switch( astate ) + { + case TAP_RESET: ndx = 0; break; + case TAP_DRSHIFT: ndx = 2; break; + case TAP_DRPAUSE: ndx = 3; break; + case TAP_IDLE: ndx = 1; break; + case TAP_IRSHIFT: ndx = 4; break; + case TAP_IRPAUSE: ndx = 5; break; + default: + LOG_ERROR( "fatal: unstable state \"%s\" used in tap_move_ndx()", tap_state_name(astate) ); + exit(1); + } + + return ndx; +} + + +/* 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 + * + * DRSHIFT->DRSHIFT and IRSHIFT->IRSHIFT have to be caught in interface specific code + */ +struct tms_sequences +{ + u8 bits; + u8 bit_count; + +}; + +/* + * These macros allow us to specify TMS state transitions by bits rather than hex bytes. + * Read the bits from LSBit first to MSBit last (right-to-left). + */ +#define HEX__(n) 0x##n##LU + +#define B8__(x) \ + (((x) & 0x0000000FLU)?(1<<0):0) \ + +(((x) & 0x000000F0LU)?(1<<1):0) \ + +(((x) & 0x00000F00LU)?(1<<2):0) \ + +(((x) & 0x0000F000LU)?(1<<3):0) \ + +(((x) & 0x000F0000LU)?(1<<4):0) \ + +(((x) & 0x00F00000LU)?(1<<5):0) \ + +(((x) & 0x0F000000LU)?(1<<6):0) \ + +(((x) & 0xF0000000LU)?(1<<7):0) + +#define B8(bits,count) { ((u8)B8__(HEX__(bits))), (count) } + +static const struct tms_sequences old_tms_seqs[6][6] = /* [from_state_ndx][to_state_ndx] */ +{ + /* value clocked to TMS to move from one of six stable states to another. + * N.B. OOCD clocks TMS from LSB first, so read these right-to-left. + * N.B. These values are tightly bound to the table in tap_get_tms_path_len(). + * N.B. Reset only needs to be 0b11111, but in JLink an even byte of 1's is more stable. + * These extra ones cause no TAP state problem, because we go into reset and stay in reset. + */ + + + + /* to state: */ + /* RESET IDLE DRSHIFT DRPAUSE IRSHIFT IRPAUSE */ /* from state: */ + { B8(1111111,7), B8(0000000,7), B8(0010111,7), B8(0001010,7), B8(0011011,7), B8(0010110,7) }, /* RESET */ + { B8(1111111,7), B8(0000000,7), B8(0100101,7), B8(0000101,7), B8(0101011,7), B8(0001011,7) }, /* IDLE */ + { B8(1111111,7), B8(0110001,7), B8(0000000,7), B8(0000001,7), B8(0001111,7), B8(0101111,7) }, /* DRSHIFT */ + { B8(1111111,7), B8(0110000,7), B8(0100000,7), B8(0010111,7), B8(0011110,7), B8(0101111,7) }, /* DRPAUSE */ + { B8(1111111,7), B8(0110001,7), B8(0000111,7), B8(0010111,7), B8(0000000,7), B8(0000001,7) }, /* IRSHIFT */ + { B8(1111111,7), B8(0110000,7), B8(0011100,7), B8(0010111,7), B8(0011110,7), B8(0101111,7) }, /* IRPAUSE */ +}; + + + +static const struct tms_sequences short_tms_seqs[6][6] = /* [from_state_ndx][to_state_ndx] */ +{ + /* this is the table submitted by Jeff Williams on 3/30/2009 with this comment: + + OK, I added Peter's version of the state table, and it works OK for + me on MC1322x. I've recreated the jlink portion of patch with this + new state table. His changes to my state table are pretty minor in + terms of total transitions, but Peter feels that his version fixes + some long-standing problems. + Jeff + + I added the bit count into the table, reduced RESET column to 7 bits from 8. + Dick + + state specific comments: + ------------------------ + *->RESET tried the 5 bit reset and it gave me problems, 7 bits seems to + work better on ARM9 with ft2232 driver. (Dick) + + RESET->DRSHIFT add 1 extra clock cycles in the RESET state before advancing. + needed on ARM9 with ft2232 driver. (Dick) + + RESET->IRSHIFT add 1 extra clock cycles in the RESET state before advancing. + needed on ARM9 with ft2232 driver. (Dick) + */ + + /* to state: */ + /* RESET IDLE DRSHIFT DRPAUSE IRSHIFT IRPAUSE */ /* from state: */ + { B8(1111111,7), B8(0000000,7), B8(0010111,7), B8(0001010,7), B8(0011011,7), B8(0010110,7) }, /* RESET */ + { B8(1111111,7), B8(0000000,7), B8(001,3), B8(0101,4), B8(0011,4), B8(01011,5) }, /* IDLE */ + { B8(1111111,7), B8(011,3), B8(00111,5), B8(01,2), B8(001111,6), B8(0101111,7) }, /* DRSHIFT */ + { B8(1111111,7), B8(011,3), B8(01,2), B8(0,1), B8(001111,6), B8(0101111,7) }, /* DRPAUSE */ + { B8(1111111,7), B8(011,3), B8(00111,5), B8(010111,6), B8(001111,6), B8(01,2) }, /* IRSHIFT */ + { B8(1111111,7), B8(011,3), B8(00111,5), B8(010111,6), B8(01,2), B8(0,1) } /* IRPAUSE */ + +}; + +typedef const struct tms_sequences tms_table[6][6]; + +static tms_table *tms_seqs=&short_tms_seqs; + +int tap_get_tms_path( tap_state_t from, tap_state_t to ) +{ + return (*tms_seqs)[tap_move_ndx(from)][tap_move_ndx(to)].bits; +} + + +int tap_get_tms_path_len( tap_state_t from, tap_state_t to ) +{ + return (*tms_seqs)[tap_move_ndx(from)][tap_move_ndx(to)].bit_count; +} + + +bool tap_is_state_stable(tap_state_t astate) +{ + bool is_stable; + + /* A switch() is used because it is symbol dependent + (not value dependent like an array), and can also check bounds. + */ + switch( astate ) + { + case TAP_RESET: + case TAP_IDLE: + case TAP_DRSHIFT: + case TAP_DRPAUSE: + case TAP_IRSHIFT: + case TAP_IRPAUSE: + is_stable = true; + break; + default: + is_stable = false; + } + + return is_stable; +} + +tap_state_t tap_state_transition(tap_state_t cur_state, bool tms) +{ + tap_state_t new_state; + + /* A switch is used because it is symbol dependent and not value dependent + like an array. Also it can check for out of range conditions. + */ + + if (tms) + { + switch (cur_state) + { + case TAP_RESET: + new_state = cur_state; + break; + case TAP_IDLE: + case TAP_DRUPDATE: + case TAP_IRUPDATE: + new_state = TAP_DRSELECT; + break; + case TAP_DRSELECT: + new_state = TAP_IRSELECT; + break; + case TAP_DRCAPTURE: + case TAP_DRSHIFT: + new_state = TAP_DREXIT1; + break; + case TAP_DREXIT1: + case TAP_DREXIT2: + new_state = TAP_DRUPDATE; + break; + case TAP_DRPAUSE: + new_state = TAP_DREXIT2; + break; + case TAP_IRSELECT: + new_state = TAP_RESET; + break; + case TAP_IRCAPTURE: + case TAP_IRSHIFT: + new_state = TAP_IREXIT1; + break; + case TAP_IREXIT1: + case TAP_IREXIT2: + new_state = TAP_IRUPDATE; + break; + case TAP_IRPAUSE: + new_state = TAP_IREXIT2; + break; + default: + LOG_ERROR( "fatal: invalid argument cur_state=%d", cur_state ); + exit(1); + break; + } + } + else + { + switch (cur_state) + { + case TAP_RESET: + case TAP_IDLE: + case TAP_DRUPDATE: + case TAP_IRUPDATE: + new_state = TAP_IDLE; + break; + case TAP_DRSELECT: + new_state = TAP_DRCAPTURE; + break; + case TAP_DRCAPTURE: + case TAP_DRSHIFT: + case TAP_DREXIT2: + new_state = TAP_DRSHIFT; + break; + case TAP_DREXIT1: + case TAP_DRPAUSE: + new_state = TAP_DRPAUSE; + break; + case TAP_IRSELECT: + new_state = TAP_IRCAPTURE; + break; + case TAP_IRCAPTURE: + case TAP_IRSHIFT: + case TAP_IREXIT2: + new_state = TAP_IRSHIFT; + break; + case TAP_IREXIT1: + case TAP_IRPAUSE: + new_state = TAP_IRPAUSE; + break; + default: + LOG_ERROR( "fatal: invalid argument cur_state=%d", cur_state ); + exit(1); + break; + } + } + + return new_state; +} + +const char* tap_state_name(tap_state_t state) { const char* ret; switch( state ) { case TAP_RESET: ret = "RESET"; break; - case TAP_IDLE: ret = "IDLE"; break; + case TAP_IDLE: ret = "RUN/IDLE"; break; case TAP_DRSELECT: ret = "DRSELECT"; break; case TAP_DRCAPTURE: ret = "DRCAPTURE"; break; case TAP_DRSHIFT: ret = "DRSHIFT"; break; @@ -2981,3 +3538,136 @@ const char* jtag_state_name(enum tap_state state) return ret; } + +static tap_state_t tap_state_by_name( const char *name ) +{ + tap_state_t x; + + for( x = 0 ; x < TAP_NUM_STATES ; x++ ){ + /* be nice to the human */ + if( 0 == strcasecmp( name, tap_state_name(x) ) ){ + return x; + } + } + /* not found */ + return TAP_INVALID; +} + +#ifdef _DEBUG_JTAG_IO_ + +#define JTAG_DEBUG_STATE_APPEND(buf, len, bit) \ + do { buf[len] = bit ? '1' : '0'; } while(0) +#define JTAG_DEBUG_STATE_PRINT(a, b, astr, bstr) \ + DEBUG_JTAG_IO("TAP/SM: %9s -> %5s\tTMS: %s\tTDI: %s", \ + tap_state_name(a), tap_state_name(b), astr, bstr) + +tap_state_t jtag_debug_state_machine(const void *tms_buf, const void *tdi_buf, + unsigned tap_bits, tap_state_t next_state) +{ + const u8 *tms_buffer; + const u8 *tdi_buffer; + unsigned tap_bytes; + unsigned cur_byte; + unsigned cur_bit; + + unsigned tap_out_bits; + char tms_str[33]; + char tdi_str[33]; + + tap_state_t last_state; + + // set startstate (and possibly last, if tap_bits == 0) + last_state = next_state; + DEBUG_JTAG_IO("TAP/SM: START state: %s", tap_state_name(next_state)); + + tms_buffer = (const u8 *)tms_buf; + tdi_buffer = (const u8 *)tdi_buf; + + tap_bytes = TAP_SCAN_BYTES(tap_bits); + DEBUG_JTAG_IO("TAP/SM: TMS bits: %u (bytes: %u)", tap_bits, tap_bytes); + + tap_out_bits = 0; + for(cur_byte = 0; cur_byte < tap_bytes; cur_byte++) + { + for(cur_bit = 0; cur_bit < 8; cur_bit++) + { + // make sure we do not run off the end of the buffers + unsigned tap_bit = cur_byte * 8 + cur_bit; + if (tap_bit == tap_bits) + break; + + // check and save TMS bit + tap_bit = !!(tms_buffer[cur_byte] & (1 << cur_bit)); + JTAG_DEBUG_STATE_APPEND(tms_str, tap_out_bits, tap_bit); + + // use TMS bit to find the next TAP state + next_state = tap_state_transition(last_state, tap_bit); + + // check and store TDI bit + tap_bit = !!(tdi_buffer[cur_byte] & (1 << cur_bit)); + JTAG_DEBUG_STATE_APPEND(tdi_str, tap_out_bits, tap_bit); + + // increment TAP bits + tap_out_bits++; + + // Only show TDO bits on state transitions, or + // after some number of bits in the same state. + if ((next_state == last_state) && (tap_out_bits < 32)) + continue; + + // terminate strings and display state transition + tms_str[tap_out_bits] = tdi_str[tap_out_bits] = 0; + JTAG_DEBUG_STATE_PRINT(last_state, next_state, tms_str, tdi_str); + + // reset state + last_state = next_state; + tap_out_bits = 0; + } + } + + if (tap_out_bits) + { + // terminate strings and display state transition + tms_str[tap_out_bits] = tdi_str[tap_out_bits] = 0; + JTAG_DEBUG_STATE_PRINT(last_state, next_state, tms_str, tdi_str); + } + + DEBUG_JTAG_IO("TAP/SM: FINAL state: %s", tap_state_name(next_state)); + + return next_state; +} +#endif // _DEBUG_JTAG_IO_ + +#ifndef HAVE_JTAG_MINIDRIVER_H +void jtag_alloc_in_value32(scan_field_t *field) +{ + field->in_value=(u8 *)cmd_queue_alloc(4); +} +#endif + +static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc == 1) + { + if (strcmp(args[0], "short") == 0) + { + tms_seqs=&short_tms_seqs; + } + else if (strcmp(args[0], "long") == 0) + { + tms_seqs=&old_tms_seqs; + } else + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + } else if (argc != 0) + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + command_print(cmd_ctx, "tms sequence is %s", (tms_seqs==&short_tms_seqs) ? "short": "long"); + + return ERROR_OK; +} + +/*-------------------------------------------*/