From 66707c94d7a34e99d77a032223e42909005a563e Mon Sep 17 00:00:00 2001 From: zwelch Date: Tue, 9 Jun 2009 04:15:13 +0000 Subject: Split main jtag.c file into two layers: - src/jtag/core.c: contains the low-level JTAG TAP and scanning routines. - src/jtag/tcl.c: contains high-level JTAG TCL commands that use the core. - Remove static keywords from routines in core.c, extern from tcl.c: - jtag, jtag_interface global variables - jtag_{examine,validate}_chain and jtag_tap_{init,free} functions - Added myself to the copyright header in both of these files. - Used 'svn cp' to add files, so versioning was preserved for both. git-svn-id: svn://svn.berlios.de/openocd/trunk@2149 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/jtag/jtag.c | 2585 ------------------------------------------------------- 1 file changed, 2585 deletions(-) delete mode 100644 src/jtag/jtag.c (limited to 'src/jtag/jtag.c') diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c deleted file mode 100644 index 3962fb2d..00000000 --- a/src/jtag/jtag.c +++ /dev/null @@ -1,2585 +0,0 @@ -/*************************************************************************** - * Copyright (C) 2005 by Dominic Rath * - * Dominic.Rath@gmx.de * - * * - * 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 * - * (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 "jtag.h" -#include "minidriver.h" -#include "interface.h" - -#ifdef HAVE_STRINGS_H -#include -#endif - - -/// The number of JTAG queue flushes (for profiling and debugging purposes). -static int jtag_flush_queue_count; - -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 -*/ -int jtag_error=ERROR_OK; - -char* jtag_event_strings[] = -{ - "JTAG controller reset (RESET or TRST)" -}; - -const Jim_Nvp nvp_jtag_tap_event[] = { - { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" }, - { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" }, - - { .name = NULL, .value = -1 } -}; - -int jtag_trst = 0; -int jtag_srst = 0; - -/** - * List all TAPs that have been created. - */ -static jtag_tap_t *__jtag_all_taps = NULL; -/** - * The number of TAPs in the __jtag_all_taps list, used to track the - * assigned chain position to new TAPs - */ -static unsigned jtag_num_taps = 0; - -enum reset_types jtag_reset_config = RESET_NONE; -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) */ -static int jtag_nsrst_delay = 0; /* default to no nSRST delay */ -static int jtag_ntrst_delay = 0; /* default to no nTRST delay */ - -/* callbacks to inform high-level handlers about JTAG state changes */ -jtag_event_callback_t *jtag_event_callbacks; - -/* speed in kHz*/ -static int speed_khz = 0; -/* flag if the kHz speed was defined */ -static bool hasKHz = false; - -/* jtag interfaces (parport, FTDI-USB, TI-USB, ...) - */ - -#if BUILD_ECOSBOARD == 1 - extern jtag_interface_t zy1000_interface; -#elif defined(BUILD_MINIDRIVER_DUMMY) - extern jtag_interface_t minidummy_interface; -#else // standard drivers -#if BUILD_PARPORT == 1 - extern jtag_interface_t parport_interface; -#endif - -#if BUILD_DUMMY == 1 - extern jtag_interface_t dummy_interface; -#endif - -#if BUILD_FT2232_FTD2XX == 1 - extern jtag_interface_t ft2232_interface; -#endif - -#if BUILD_FT2232_LIBFTDI == 1 - extern jtag_interface_t ft2232_interface; -#endif - -#if BUILD_AMTJTAGACCEL == 1 - extern jtag_interface_t amt_jtagaccel_interface; -#endif - -#if BUILD_EP93XX == 1 - extern jtag_interface_t ep93xx_interface; -#endif - -#if BUILD_AT91RM9200 == 1 - extern jtag_interface_t at91rm9200_interface; -#endif - -#if BUILD_GW16012 == 1 - extern jtag_interface_t gw16012_interface; -#endif - -#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1 - extern jtag_interface_t presto_interface; -#endif - -#if BUILD_USBPROG == 1 - extern jtag_interface_t usbprog_interface; -#endif - -#if BUILD_JLINK == 1 - extern jtag_interface_t jlink_interface; -#endif - -#if BUILD_VSLLINK == 1 - extern jtag_interface_t vsllink_interface; -#endif - -#if BUILD_RLINK == 1 - extern jtag_interface_t rlink_interface; -#endif - -#if BUILD_ARMJTAGEW == 1 - extern jtag_interface_t armjtagew_interface; -#endif -#endif // standard drivers - -/** - * The list of built-in JTAG interfaces, containing entries for those - * drivers that were enabled by the @c configure script. - * - * The list should be defined to contain either one minidriver interface - * or some number of standard driver interfaces, never both. - */ -jtag_interface_t *jtag_interfaces[] = { -#if BUILD_ECOSBOARD == 1 - &zy1000_interface, -#elif defined(BUILD_MINIDRIVER_DUMMY) - &minidummy_interface, -#else // standard drivers -#if BUILD_PARPORT == 1 - &parport_interface, -#endif -#if BUILD_DUMMY == 1 - &dummy_interface, -#endif -#if BUILD_FT2232_FTD2XX == 1 - &ft2232_interface, -#endif -#if BUILD_FT2232_LIBFTDI == 1 - &ft2232_interface, -#endif -#if BUILD_AMTJTAGACCEL == 1 - &amt_jtagaccel_interface, -#endif -#if BUILD_EP93XX == 1 - &ep93xx_interface, -#endif -#if BUILD_AT91RM9200 == 1 - &at91rm9200_interface, -#endif -#if BUILD_GW16012 == 1 - &gw16012_interface, -#endif -#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1 - &presto_interface, -#endif -#if BUILD_USBPROG == 1 - &usbprog_interface, -#endif -#if BUILD_JLINK == 1 - &jlink_interface, -#endif -#if BUILD_VSLLINK == 1 - &vsllink_interface, -#endif -#if BUILD_RLINK == 1 - &rlink_interface, -#endif -#if BUILD_ARMJTAGEW == 1 - &armjtagew_interface, -#endif -#endif // standard drivers - NULL, -}; - -struct jtag_interface_s *jtag = NULL; - -/* configuration */ -static jtag_interface_t *jtag_interface = NULL; -int jtag_speed = 0; - -/* jtag commands */ -static int handle_interface_list_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_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_all_taps(void) -{ - return __jtag_all_taps; -}; - -unsigned jtag_tap_count(void) -{ - return jtag_num_taps; -} - -unsigned jtag_tap_count_enabled(void) -{ - jtag_tap_t *t = jtag_all_taps(); - unsigned n = 0; - while(t) - { - if (t->enabled) - n++; - t = t->next_tap; - } - return n; -} - -/// Append a new TAP to the chain of all taps. -void jtag_tap_add(struct jtag_tap_s *t) -{ - t->abs_chain_position = jtag_num_taps++; - - jtag_tap_t **tap = &__jtag_all_taps; - while(*tap != NULL) - tap = &(*tap)->next_tap; - *tap = t; -} - -jtag_tap_t *jtag_tap_by_string(const char *s) -{ - /* try by name first */ - jtag_tap_t *t = jtag_all_taps(); - while (t) - { - if (0 == strcmp(t->dotted_name, s)) - return t; - t = t->next_tap; - } - - /* no tap found by name, so try to parse the name as a number */ - char *cp; - unsigned n = strtoul(s, &cp, 0); - if ((s == cp) || (*cp != 0)) - return NULL; - - return jtag_tap_by_position(n); -} - -jtag_tap_t *jtag_tap_by_jim_obj(Jim_Interp *interp, Jim_Obj *o) -{ - const char *cp = Jim_GetString(o, NULL); - jtag_tap_t *t = cp ? jtag_tap_by_string(cp) : NULL; - if (NULL == cp) - cp = "(unknown)"; - if (NULL == t) - Jim_SetResult_sprintf(interp, "Tap '%s' could not be found", cp); - return t; -} - -/* returns a pointer to the n-th device in the scan chain */ -jtag_tap_t *jtag_tap_by_position(unsigned n) -{ - jtag_tap_t *t = jtag_all_taps(); - - while (t && n-- > 0) - t = t->next_tap; - - return t; -} - -const char *jtag_tap_name(const jtag_tap_t *tap) -{ - return (tap == NULL) ? "(unknown)" : tap->dotted_name; -} - - -int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv) -{ - jtag_event_callback_t **callbacks_p = &jtag_event_callbacks; - - if (callback == NULL) - { - return ERROR_INVALID_ARGUMENTS; - } - - if (*callbacks_p) - { - while ((*callbacks_p)->next) - callbacks_p = &((*callbacks_p)->next); - callbacks_p = &((*callbacks_p)->next); - } - - (*callbacks_p) = malloc(sizeof(jtag_event_callback_t)); - (*callbacks_p)->callback = callback; - (*callbacks_p)->priv = priv; - (*callbacks_p)->next = NULL; - - return ERROR_OK; -} - -int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv)) -{ - jtag_event_callback_t **callbacks_p = &jtag_event_callbacks; - - if (callback == NULL) - { - return ERROR_INVALID_ARGUMENTS; - } - - while (*callbacks_p) - { - jtag_event_callback_t **next = &((*callbacks_p)->next); - if ((*callbacks_p)->callback == callback) - { - free(*callbacks_p); - *callbacks_p = *next; - } - callbacks_p = next; - } - - return ERROR_OK; -} - -int jtag_call_event_callbacks(enum jtag_event event) -{ - jtag_event_callback_t *callback = jtag_event_callbacks; - - LOG_DEBUG("jtag event: %s", jtag_event_strings[event]); - - while (callback) - { - callback->callback(event, callback->priv); - callback = callback->next; - } - - return ERROR_OK; -} - -static void jtag_checks(void) -{ - assert(jtag_trst == 0); -} - -static void jtag_prelude(tap_state_t state) -{ - jtag_checks(); - - assert(state!=TAP_INVALID); - - cmd_queue_cur_state = state; -} - -void jtag_alloc_in_value32(scan_field_t *field) -{ - interface_jtag_alloc_in_value32(field); -} - -void jtag_add_ir_scan_noverify(int in_count, const scan_field_t *in_fields, - tap_state_t state) -{ - jtag_prelude(state); - - int retval = interface_jtag_add_ir_scan(in_count, in_fields, state); - jtag_set_error(retval); -} - - -void jtag_add_ir_scan(int in_num_fields, scan_field_t *in_fields, tap_state_t state) -{ - if (jtag_verify&&jtag_verify_capture_ir) - { - /* 8 x 32 bit id's is enough for all invocations */ - - for (int j = 0; j < in_num_fields; j++) - { - /* 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); - } -} - -void jtag_add_plain_ir_scan(int in_num_fields, const scan_field_t *in_fields, - tap_state_t state) -{ - jtag_prelude(state); - - int retval = interface_jtag_add_plain_ir_scan( - in_num_fields, in_fields, state); - jtag_set_error(retval); -} - -void jtag_add_callback(jtag_callback1_t f, u8 *in) -{ - interface_jtag_add_callback(f, in); -} - -void jtag_add_callback4(jtag_callback_t f, u8 *in, - jtag_callback_data_t data1, jtag_callback_data_t data2, - jtag_callback_data_t data3) -{ - interface_jtag_add_callback4(f, in, data1, data2, data3); -} - -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++) - { - struct scan_field_s *field = &in_fields[i]; - field->allocated = 0; - field->modified = 0; - if (field->check_value || field->in_value) - continue; - interface_jtag_add_scan_check_alloc(field); - field->modified = 1; - } - - 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); - } -} - - -void jtag_add_dr_scan(int in_num_fields, const scan_field_t *in_fields, - tap_state_t state) -{ - jtag_prelude(state); - - int retval; - retval = interface_jtag_add_dr_scan(in_num_fields, in_fields, state); - jtag_set_error(retval); -} - -void jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, - tap_state_t state) -{ - jtag_prelude(state); - - int retval; - retval = interface_jtag_add_plain_dr_scan(in_num_fields, in_fields, state); - jtag_set_error(retval); -} - -void jtag_add_dr_out(jtag_tap_t* tap, - int num_fields, const int* num_bits, const u32* value, - tap_state_t end_state) -{ - assert(end_state != TAP_INVALID); - - cmd_queue_cur_state = end_state; - - interface_jtag_add_dr_out(tap, - num_fields, num_bits, value, - end_state); -} - -void jtag_add_tlr(void) -{ - jtag_prelude(TAP_RESET); - jtag_set_error(interface_jtag_add_tlr()); - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); -} - -void jtag_add_pathmove(int num_states, const tap_state_t *path) -{ - tap_state_t cur_state = cmd_queue_cur_state; - - /* the last state has to be a stable state */ - if (!tap_is_state_stable(path[num_states - 1])) - { - LOG_ERROR("BUG: TAP path doesn't finish in a stable state"); - jtag_set_error(ERROR_JTAG_NOT_STABLE_STATE); - return; - } - - for (int i = 0; i < num_states; i++) - { - if (path[i] == TAP_RESET) - { - LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences"); - jtag_set_error(ERROR_JTAG_STATE_INVALID); - return; - } - - 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", - tap_state_name(cur_state), tap_state_name(path[i])); - jtag_set_error(ERROR_JTAG_TRANSITION_INVALID); - return; - } - cur_state = path[i]; - } - - jtag_checks(); - - jtag_set_error(interface_jtag_add_pathmove(num_states, path)); - cmd_queue_cur_state = path[num_states - 1]; -} - -void jtag_add_runtest(int num_cycles, tap_state_t state) -{ - jtag_prelude(state); - jtag_set_error(interface_jtag_add_runtest(num_cycles, state)); -} - - -void jtag_add_clocks(int num_cycles) -{ - if (!tap_is_state_stable(cmd_queue_cur_state)) - { - LOG_ERROR("jtag_add_clocks() called with TAP in unstable state \"%s\"", - tap_state_name(cmd_queue_cur_state)); - jtag_set_error(ERROR_JTAG_NOT_STABLE_STATE); - return; - } - - if (num_cycles > 0) - { - jtag_checks(); - jtag_set_error(interface_jtag_add_clocks(num_cycles)); - } -} - -void jtag_add_reset(int req_tlr_or_trst, int req_srst) -{ - int trst_with_tlr = 0; - - /* FIX!!! there are *many* different cases here. A better - * approach is needed for legal combinations of transitions... - */ - if ((jtag_reset_config & RESET_HAS_SRST)&& - (jtag_reset_config & RESET_HAS_TRST)&& - ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0)) - { - if (((req_tlr_or_trst&&!jtag_trst)|| - (!req_tlr_or_trst&&jtag_trst))&& - ((req_srst&&!jtag_srst)|| - (!req_srst&&jtag_srst))) - { - /* FIX!!! srst_pulls_trst allows 1,1 => 0,0 transition.... */ - //LOG_ERROR("BUG: transition of req_tlr_or_trst and req_srst in the same jtag_add_reset() call is undefined"); - } - } - - /* Make sure that jtag_reset_config allows the requested reset */ - /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */ - if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (!req_tlr_or_trst)) - { - LOG_ERROR("BUG: requested reset would assert trst"); - jtag_set_error(ERROR_FAIL); - return; - } - - /* if TRST pulls SRST, we reset with TAP T-L-R */ - if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_tlr_or_trst)) && (req_srst == 0)) - { - trst_with_tlr = 1; - } - - if (req_srst && !(jtag_reset_config & RESET_HAS_SRST)) - { - LOG_ERROR("BUG: requested SRST assertion, but the current configuration doesn't support this"); - jtag_set_error(ERROR_FAIL); - return; - } - - if (req_tlr_or_trst) - { - if (!trst_with_tlr && (jtag_reset_config & RESET_HAS_TRST)) - { - jtag_trst = 1; - } else - { - trst_with_tlr = 1; - } - } else - { - jtag_trst = 0; - } - - jtag_srst = req_srst; - - int retval = interface_jtag_add_reset(jtag_trst, jtag_srst); - if (retval != ERROR_OK) - { - jtag_set_error(retval); - return; - } - jtag_execute_queue(); - - if (jtag_srst) - { - LOG_DEBUG("SRST line asserted"); - } - else - { - LOG_DEBUG("SRST line released"); - if (jtag_nsrst_delay) - jtag_add_sleep(jtag_nsrst_delay * 1000); - } - - if (trst_with_tlr) - { - LOG_DEBUG("JTAG reset with RESET instead of TRST"); - jtag_set_end_state(TAP_RESET); - jtag_add_tlr(); - return; - } - - if (jtag_trst) - { - /* we just asserted nTRST, so we're now in Test-Logic-Reset, - * and inform possible listeners about this - */ - LOG_DEBUG("TRST line asserted"); - tap_set_state(TAP_RESET); - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - } - else - { - if (jtag_ntrst_delay) - jtag_add_sleep(jtag_ntrst_delay * 1000); - } -} - -tap_state_t jtag_set_end_state(tap_state_t state) -{ - if ((state == TAP_DRSHIFT)||(state == TAP_IRSHIFT)) - { - LOG_ERROR("BUG: TAP_DRSHIFT/IRSHIFT can't be end state. Calling code should use a larger scan field"); - } - - if (state!=TAP_INVALID) - cmd_queue_end_state = state; - return cmd_queue_end_state; -} - -tap_state_t jtag_get_end_state(void) -{ - return cmd_queue_end_state; -} - -void jtag_add_sleep(u32 us) -{ - /// @todo Here, keep_alive() appears to be a layering violation!!! - keep_alive(); - jtag_set_error(interface_jtag_add_sleep(us)); -} - -int jtag_check_value_inner(u8 *captured, u8 *in_check_value, u8 *in_check_mask, int num_bits) -{ - int retval = ERROR_OK; - - int compare_failed = 0; - - if (in_check_mask) - compare_failed = buf_cmp_mask(captured, in_check_value, in_check_mask, num_bits); - else - 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:", - jtag_tap_name(field->tap)); - */ - if (compare_failed) - { - 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 (in_check_mask) - { - char *in_check_mask_char; - 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); - free(in_check_mask_char); - } - else - { - LOG_WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char); - } - - free(captured_char); - free(in_check_value_char); - - retval = ERROR_JTAG_QUEUE_FAILED; - } - - } - return retval; -} - -void jtag_check_value_mask(scan_field_t *field, u8 *value, u8 *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); -} - - - -int default_interface_jtag_execute_queue(void) -{ - if (NULL == jtag) - { - LOG_ERROR("No JTAG interface configured yet. " - "Issue 'init' command in startup scripts " - "before communicating with targets."); - return ERROR_FAIL; - } - - return jtag->execute_queue(); -} - -void jtag_execute_queue_noclear(void) -{ - jtag_flush_queue_count++; - jtag_set_error(interface_jtag_execute_queue()); -} - -int jtag_get_flush_queue_count(void) -{ - return jtag_flush_queue_count; -} - -int jtag_execute_queue(void) -{ - jtag_execute_queue_noclear(); - return jtag_error_clear(); -} - -static int jtag_reset_callback(enum jtag_event event, void *priv) -{ - jtag_tap_t *tap = priv; - - LOG_DEBUG("-"); - - if (event == JTAG_TRST_ASSERTED) - { - buf_set_ones(tap->cur_instr, tap->ir_length); - tap->bypass = 1; - } - - return ERROR_OK; -} - -void jtag_sleep(u32 us) -{ - alive_sleep(us/1000); -} - -/// maximum number of JTAG devices expected in the chain -#define JTAG_MAX_CHAIN_SIZE 20 - -#define EXTRACT_MFG(X) (((X) & 0xffe) >> 1) -#define EXTRACT_PART(X) (((X) & 0xffff000) >> 12) -#define EXTRACT_VER(X) (((X) & 0xf0000000) >> 28) - -static int jtag_examine_chain_execute(u8 *idcode_buffer, unsigned num_idcode) -{ - scan_field_t field = { - .tap = NULL, - .num_bits = num_idcode * 32, - .out_value = idcode_buffer, - .in_value = idcode_buffer, - }; - - // initialize to the end of chain ID value - for (unsigned i = 0; i < JTAG_MAX_CHAIN_SIZE; i++) - buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF); - - jtag_add_plain_dr_scan(1, &field, TAP_RESET); - return jtag_execute_queue(); -} - -static bool jtag_examine_chain_check(u8 *idcodes, unsigned count) -{ - u8 zero_check = 0x0; - u8 one_check = 0xff; - - for (unsigned i = 0; i < count * 4; i++) - { - zero_check |= idcodes[i]; - one_check &= idcodes[i]; - } - - /* if there wasn't a single non-zero bit or if all bits were one, - * the scan is not valid */ - if (zero_check == 0x00 || one_check == 0xff) - { - LOG_ERROR("JTAG communication failure: check connection, " - "JTAG interface, target power etc."); - return false; - } - return true; -} - -static void jtag_examine_chain_display(enum log_levels level, const char *msg, - const char *name, u32 idcode) -{ - log_printf_lf(level, __FILE__, __LINE__, __FUNCTION__, - "JTAG tap: %s %16.16s: 0x%08x " - "(mfg: 0x%3.3x, part: 0x%4.4x, ver: 0x%1.1x)", - name, msg, idcode, - EXTRACT_MFG(idcode), EXTRACT_PART(idcode), EXTRACT_VER(idcode) ); -} - -static bool jtag_idcode_is_final(u32 idcode) -{ - return idcode == 0x000000FF || idcode == 0xFFFFFFFF; -} - -/** - * This helper checks that remaining bits in the examined chain data are - * all as expected, but a single JTAG device requires only 64 bits to be - * read back correctly. This can help identify and diagnose problems - * with the JTAG chain earlier, gives more helpful/explicit error messages. - */ -static void jtag_examine_chain_end(u8 *idcodes, unsigned count, unsigned max) -{ - bool triggered = false; - for ( ; count < max - 31; count += 32) - { - u32 idcode = buf_get_u32(idcodes, count, 32); - // do not trigger the warning if the data looks good - if (!triggered && jtag_idcode_is_final(idcode)) - continue; - LOG_WARNING("Unexpected idcode after end of chain: %d 0x%08x", - count, idcode); - triggered = true; - } -} - -static bool jtag_examine_chain_match_tap(const struct jtag_tap_s *tap) -{ - if (0 == tap->expected_ids_cnt) - { - /// @todo Enable LOG_INFO to ask for reports about unknown TAP IDs. -#if 0 - LOG_INFO("Uknown JTAG TAP ID: 0x%08x", tap->idcode) - LOG_INFO("Please report the chip name and reported ID code to the openocd project"); -#endif - return true; - } - - /* Loop over the expected identification codes and test for a match */ - u8 ii; - for (ii = 0; ii < tap->expected_ids_cnt; ii++) - { - if (tap->idcode == tap->expected_ids[ii]) - break; - } - - /* If none of the expected ids matched, log an error */ - if (ii != tap->expected_ids_cnt) - { - LOG_INFO("JTAG Tap/device matched"); - return true; - } - jtag_examine_chain_display(LOG_LVL_ERROR, "got", - tap->dotted_name, tap->idcode); - for (ii = 0; ii < tap->expected_ids_cnt; ii++) - { - char msg[32]; - snprintf(msg, sizeof(msg), "expected %hhu of %hhu", - ii + 1, tap->expected_ids_cnt); - jtag_examine_chain_display(LOG_LVL_ERROR, msg, - tap->dotted_name, tap->expected_ids[ii]); - } - return false; -} - -/* Try to examine chain layout according to IEEE 1149.1 §12 - */ -static int jtag_examine_chain(void) -{ - u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4]; - unsigned device_count = 0; - - jtag_examine_chain_execute(idcode_buffer, JTAG_MAX_CHAIN_SIZE); - - if (!jtag_examine_chain_check(idcode_buffer, JTAG_MAX_CHAIN_SIZE)) - return ERROR_JTAG_INIT_FAILED; - - /* point at the 1st tap */ - jtag_tap_t *tap = jtag_tap_next_enabled(NULL); - if (tap == NULL) - { - LOG_ERROR("JTAG: No taps enabled?"); - return ERROR_JTAG_INIT_FAILED; - } - - for (unsigned bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;) - { - u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32); - if ((idcode & 1) == 0) - { - /* LSB must not be 0, this indicates a device in bypass */ - LOG_WARNING("Tap/Device does not have IDCODE"); - idcode = 0; - - bit_count += 1; - } - else - { - /* - * End of chain (invalid manufacturer ID) some devices, such - * as AVR will output all 1's instead of TDI input value at - * end of chain. - */ - if (jtag_idcode_is_final(idcode)) - { - jtag_examine_chain_end(idcode_buffer, - bit_count + 32, JTAG_MAX_CHAIN_SIZE * 32); - break; - } - - jtag_examine_chain_display(LOG_LVL_INFO, "tap/device found", - tap ? tap->dotted_name : "(not-named)", - idcode); - - bit_count += 32; - } - device_count++; - if (!tap) - continue; - - tap->idcode = idcode; - - // ensure the TAP ID does matches what was expected - if (!jtag_examine_chain_match_tap(tap)) - return ERROR_JTAG_INIT_FAILED; - - tap = jtag_tap_next_enabled(tap); - } - - /* see if number of discovered devices matches configuration */ - if (device_count != jtag_tap_count_enabled()) - { - LOG_ERROR("number of discovered devices in JTAG chain (%i) " - "does not match (enabled) configuration (%i), total taps: %d", - device_count, jtag_tap_count_enabled(), jtag_tap_count()); - LOG_ERROR("check the config file and ensure proper JTAG communication" - " (connections, speed, ...)"); - return ERROR_JTAG_INIT_FAILED; - } - - return ERROR_OK; -} - -static int jtag_validate_chain(void) -{ - jtag_tap_t *tap; - int total_ir_length = 0; - u8 *ir_test = NULL; - scan_field_t field; - int chain_pos = 0; - - tap = NULL; - total_ir_length = 0; - for(;;){ - tap = jtag_tap_next_enabled(tap); - if( tap == NULL ){ - break; - } - total_ir_length += tap->ir_length; - } - - total_ir_length += 2; - ir_test = malloc(CEIL(total_ir_length, 8)); - buf_set_ones(ir_test, total_ir_length); - - field.tap = NULL; - field.num_bits = total_ir_length; - field.out_value = ir_test; - field.in_value = ir_test; - - - jtag_add_plain_ir_scan(1, &field, TAP_RESET); - jtag_execute_queue(); - - tap = NULL; - chain_pos = 0; - int val; - for(;;){ - tap = jtag_tap_next_enabled(tap); - if( tap == NULL ){ - break; - } - - 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("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; - } - chain_pos += tap->ir_length; - } - - 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("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; - } - - free(ir_test); - - return ERROR_OK; -} - -enum jtag_tap_cfg_param { - JCFG_EVENT -}; - -static Jim_Nvp nvp_config_opts[] = { - { .name = "-event", .value = JCFG_EVENT }, - - { .name = NULL, .value = -1 } -}; - -static int jtag_tap_configure_cmd( Jim_GetOptInfo *goi, jtag_tap_t * tap) -{ - Jim_Nvp *n; - Jim_Obj *o; - int e; - - /* parse config or cget options */ - while (goi->argc > 0) { - Jim_SetEmptyResult (goi->interp); - - e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n); - if (e != JIM_OK) { - Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0); - return e; - } - - switch (n->value) { - case JCFG_EVENT: - if (goi->argc == 0) { - Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ..." ); - return JIM_ERR; - } - - e = Jim_GetOpt_Nvp( goi, nvp_jtag_tap_event, &n ); - if (e != JIM_OK) { - Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1); - return e; - } - - if (goi->isconfigure) { - if (goi->argc != 1) { - Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?"); - return JIM_ERR; - } - } else { - if (goi->argc != 0) { - Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?"); - return JIM_ERR; - } - } - - { - jtag_tap_event_action_t *jteap; - - jteap = tap->event_action; - /* replace existing? */ - while (jteap) { - if (jteap->event == (enum jtag_tap_event)n->value) { - break; - } - jteap = jteap->next; - } - - if (goi->isconfigure) { - if (jteap == NULL) { - /* create new */ - jteap = calloc(1, sizeof (*jteap)); - } - jteap->event = n->value; - Jim_GetOpt_Obj( goi, &o); - if (jteap->body) { - Jim_DecrRefCount(interp, jteap->body); - } - jteap->body = Jim_DuplicateObj(goi->interp, o); - Jim_IncrRefCount(jteap->body); - - /* add to head of event list */ - jteap->next = tap->event_action; - tap->event_action = jteap; - Jim_SetEmptyResult(goi->interp); - } else { - /* get */ - if (jteap == NULL) { - Jim_SetEmptyResult(goi->interp); - } else { - Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body)); - } - } - } - /* loop for more */ - break; - } - } /* while (goi->argc) */ - - return JIM_OK; -} - - -static void jtag_tap_init(jtag_tap_t *tap) -{ - assert(0 != tap->ir_length); - - tap->expected = malloc(tap->ir_length); - tap->expected_mask = malloc(tap->ir_length); - tap->cur_instr = malloc(tap->ir_length); - - buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value); - buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask); - buf_set_ones(tap->cur_instr, tap->ir_length); - - // place TAP in bypass mode - tap->bypass = 1; - // register the reset callback for the TAP - jtag_register_event_callback(&jtag_reset_callback, tap); - - LOG_DEBUG("Created Tap: %s @ abs position %d, " - "irlen %d, capture: 0x%x mask: 0x%x", tap->dotted_name, - tap->abs_chain_position, tap->ir_length, - tap->ir_capture_value, tap->ir_capture_mask); - jtag_tap_add(tap); -} - -static void jtag_tap_free(jtag_tap_t *tap) -{ - /// @todo is anything missing? no memory leaks please - free((void *)tap->expected_ids); - free((void *)tap->chip); - free((void *)tap->tapname); - free((void *)tap->dotted_name); - free(tap); -} - -static int jim_newtap_cmd( Jim_GetOptInfo *goi ) -{ - jtag_tap_t *pTap; - jim_wide w; - int x; - int e; - int reqbits; - Jim_Nvp *n; - char *cp; - const Jim_Nvp opts[] = { -#define NTAP_OPT_IRLEN 0 - { .name = "-irlen" , .value = NTAP_OPT_IRLEN }, -#define NTAP_OPT_IRMASK 1 - { .name = "-irmask" , .value = NTAP_OPT_IRMASK }, -#define NTAP_OPT_IRCAPTURE 2 - { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE }, -#define NTAP_OPT_ENABLED 3 - { .name = "-enable" , .value = NTAP_OPT_ENABLED }, -#define NTAP_OPT_DISABLED 4 - { .name = "-disable" , .value = NTAP_OPT_DISABLED }, -#define NTAP_OPT_EXPECTED_ID 5 - { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID }, - { .name = NULL , .value = -1 }, - }; - - pTap = malloc( sizeof(jtag_tap_t) ); - memset( pTap, 0, sizeof(*pTap) ); - if( !pTap ){ - Jim_SetResult_sprintf( goi->interp, "no memory"); - return JIM_ERR; - } - /* - * we expect CHIP + TAP + OPTIONS - * */ - if( goi->argc < 3 ){ - Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ...."); - return JIM_ERR; - } - Jim_GetOpt_String( goi, &cp, NULL ); - pTap->chip = strdup(cp); - - Jim_GetOpt_String( goi, &cp, NULL ); - pTap->tapname = strdup(cp); - - /* name + dot + name + null */ - x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1; - cp = malloc( x ); - sprintf( cp, "%s.%s", pTap->chip, pTap->tapname ); - pTap->dotted_name = cp; - - LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params", - pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc); - - /* default is enabled */ - pTap->enabled = 1; - - /* deal with options */ -#define NTREQ_IRLEN 1 -#define NTREQ_IRCAPTURE 2 -#define NTREQ_IRMASK 4 - - /* clear them as we find them */ - reqbits = (NTREQ_IRLEN | NTREQ_IRCAPTURE | NTREQ_IRMASK); - - while( goi->argc ){ - e = Jim_GetOpt_Nvp( goi, opts, &n ); - if( e != JIM_OK ){ - Jim_GetOpt_NvpUnknown( goi, opts, 0 ); - return e; - } - LOG_DEBUG("Processing option: %s", n->name ); - switch( n->value ){ - case NTAP_OPT_ENABLED: - pTap->enabled = 1; - break; - case NTAP_OPT_DISABLED: - pTap->enabled = 0; - break; - case NTAP_OPT_EXPECTED_ID: - { - u32 *new_expected_ids; - - e = Jim_GetOpt_Wide( goi, &w ); - if( e != JIM_OK) { - Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name); - return e; - } - - new_expected_ids = malloc(sizeof(u32) * (pTap->expected_ids_cnt + 1)); - if (new_expected_ids == NULL) { - Jim_SetResult_sprintf( goi->interp, "no memory"); - return JIM_ERR; - } - - memcpy(new_expected_ids, pTap->expected_ids, sizeof(u32) * pTap->expected_ids_cnt); - - new_expected_ids[pTap->expected_ids_cnt] = w; - - free(pTap->expected_ids); - pTap->expected_ids = new_expected_ids; - pTap->expected_ids_cnt++; - break; - } - case NTAP_OPT_IRLEN: - case NTAP_OPT_IRMASK: - case NTAP_OPT_IRCAPTURE: - e = Jim_GetOpt_Wide( goi, &w ); - if( e != JIM_OK ){ - Jim_SetResult_sprintf( goi->interp, "option: %s bad parameter", n->name ); - return e; - } - if( (w < 0) || (w > 0xffff) ){ - /* wacky value */ - Jim_SetResult_sprintf( goi->interp, "option: %s - wacky value: %d (0x%x)", - n->name, (int)(w), (int)(w)); - return JIM_ERR; - } - switch(n->value){ - case NTAP_OPT_IRLEN: - pTap->ir_length = w; - reqbits &= (~(NTREQ_IRLEN)); - break; - case NTAP_OPT_IRMASK: - pTap->ir_capture_mask = w; - reqbits &= (~(NTREQ_IRMASK)); - break; - case NTAP_OPT_IRCAPTURE: - pTap->ir_capture_value = w; - reqbits &= (~(NTREQ_IRCAPTURE)); - break; - } - } /* switch(n->value) */ - } /* while( goi->argc ) */ - - /* Did all the required option bits get cleared? */ - if (0 == reqbits) - { - jtag_tap_init(pTap); - return ERROR_OK; - } - - Jim_SetResult_sprintf(goi->interp, - "newtap: %s missing required parameters", - pTap->dotted_name); - jtag_tap_free(pTap); - return JIM_ERR; -} - -static int jim_jtag_command( Jim_Interp *interp, int argc, Jim_Obj *const *argv ) -{ - Jim_GetOptInfo goi; - int e; - Jim_Nvp *n; - Jim_Obj *o; - struct command_context_s *context; - - enum { - JTAG_CMD_INTERFACE, - JTAG_CMD_INIT_RESET, - JTAG_CMD_NEWTAP, - JTAG_CMD_TAPENABLE, - JTAG_CMD_TAPDISABLE, - JTAG_CMD_TAPISENABLED, - JTAG_CMD_CONFIGURE, - JTAG_CMD_CGET - }; - - const Jim_Nvp jtag_cmds[] = { - { .name = "interface" , .value = JTAG_CMD_INTERFACE }, - { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET }, - { .name = "newtap" , .value = JTAG_CMD_NEWTAP }, - { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED }, - { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE }, - { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE }, - { .name = "configure" , .value = JTAG_CMD_CONFIGURE }, - { .name = "cget" , .value = JTAG_CMD_CGET }, - - { .name = NULL, .value = -1 }, - }; - - context = Jim_GetAssocData(interp, "context"); - /* go past the command */ - Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 ); - - e = Jim_GetOpt_Nvp( &goi, jtag_cmds, &n ); - if( e != JIM_OK ){ - Jim_GetOpt_NvpUnknown( &goi, jtag_cmds, 0 ); - return e; - } - Jim_SetEmptyResult( goi.interp ); - switch( n->value ){ - case JTAG_CMD_INTERFACE: - /* return the name of the interface */ - /* TCL code might need to know the exact type... */ - /* FUTURE: we allow this as a means to "set" the interface. */ - if( goi.argc != 0 ){ - Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)"); - return JIM_ERR; - } - Jim_SetResultString( goi.interp, jtag_interface->name, -1 ); - return JIM_OK; - case JTAG_CMD_INIT_RESET: - if( goi.argc != 0 ){ - Jim_WrongNumArgs( goi.interp, 1, goi.argv-1, "(no params)"); - return JIM_ERR; - } - e = jtag_init_reset(context); - if( e != ERROR_OK ){ - Jim_SetResult_sprintf( goi.interp, "error: %d", e); - return JIM_ERR; - } - return JIM_OK; - case JTAG_CMD_NEWTAP: - return jim_newtap_cmd( &goi ); - break; - case JTAG_CMD_TAPISENABLED: - case JTAG_CMD_TAPENABLE: - case JTAG_CMD_TAPDISABLE: - if( goi.argc != 1 ){ - Jim_SetResultString( goi.interp, "Too many parameters",-1 ); - return JIM_ERR; - } - - { - jtag_tap_t *t; - t = jtag_tap_by_jim_obj( goi.interp, goi.argv[0] ); - if( t == NULL ){ - return JIM_ERR; - } - switch( n->value ){ - case JTAG_CMD_TAPISENABLED: - e = t->enabled; - break; - case JTAG_CMD_TAPENABLE: - jtag_tap_handle_event( t, JTAG_TAP_EVENT_ENABLE); - e = 1; - t->enabled = e; - break; - case JTAG_CMD_TAPDISABLE: - jtag_tap_handle_event( t, JTAG_TAP_EVENT_DISABLE); - e = 0; - t->enabled = e; - break; - } - Jim_SetResult( goi.interp, Jim_NewIntObj( goi.interp, e ) ); - return JIM_OK; - } - break; - - case JTAG_CMD_CGET: - if( goi.argc < 2 ){ - Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ..."); - return JIM_ERR; - } - - { - jtag_tap_t *t; - - Jim_GetOpt_Obj(&goi, &o); - t = jtag_tap_by_jim_obj( goi.interp, o ); - if( t == NULL ){ - return JIM_ERR; - } - - goi.isconfigure = 0; - return jtag_tap_configure_cmd( &goi, t); - } - break; - - case JTAG_CMD_CONFIGURE: - if( goi.argc < 3 ){ - Jim_WrongNumArgs( goi.interp, 0, NULL, "?tap-name? -option ?VALUE? ..."); - return JIM_ERR; - } - - { - jtag_tap_t *t; - - Jim_GetOpt_Obj(&goi, &o); - t = jtag_tap_by_jim_obj( goi.interp, o ); - if( t == NULL ){ - return JIM_ERR; - } - - goi.isconfigure = 1; - return jtag_tap_configure_cmd( &goi, t); - } - } - - return JIM_ERR; -} - -int jtag_register_commands(struct command_context_s *cmd_ctx) -{ - register_jim( cmd_ctx, "jtag", jim_jtag_command, "perform jtag tap actions"); - - register_command(cmd_ctx, NULL, "interface", handle_interface_command, - COMMAND_CONFIG, "try to configure interface"); - register_command(cmd_ctx, NULL, - "interface_list", &handle_interface_list_command, - COMMAND_ANY, "list all built-in interfaces"); - register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command, - COMMAND_ANY, "(DEPRECATED) set jtag speed (if supported)"); - register_command(cmd_ctx, NULL, "jtag_khz", handle_jtag_khz_command, - 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, "(DEPRECATED) jtag_device "); - register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command, - COMMAND_ANY, - "[none/trst_only/srst_only/trst_and_srst] [srst_pulls_trst/trst_pulls_srst] [combined/separate] [trst_push_pull/trst_open_drain] [srst_push_pull/srst_open_drain]"); - register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command, - COMMAND_ANY, "jtag_nsrst_delay - delay after deasserting srst in ms"); - register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command, - COMMAND_ANY, "jtag_ntrst_delay - delay after deasserting trst in ms"); - - register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command, - COMMAND_EXEC, "print current scan chain configuration"); - - register_command(cmd_ctx, NULL, "jtag_reset", handle_jtag_reset_command, - COMMAND_EXEC, "toggle reset lines "); - register_command(cmd_ctx, NULL, "runtest", handle_runtest_command, - COMMAND_EXEC, "move to Run-Test/Idle, and execute "); - 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; -} - -int jtag_interface_init(struct command_context_s *cmd_ctx) -{ - if (jtag) - return ERROR_OK; - - if (!jtag_interface) - { - /* nothing was previously specified by "interface" command */ - LOG_ERROR("JTAG interface has to be specified, see \"interface\" command"); - return ERROR_JTAG_INVALID_INTERFACE; - } - if(hasKHz) - { - jtag_interface->khz(jtag_get_speed_khz(), &jtag_speed); - hasKHz = false; - } - - if (jtag_interface->init() != ERROR_OK) - return ERROR_JTAG_INIT_FAILED; - - jtag = jtag_interface; - return ERROR_OK; -} - -static int jtag_init_inner(struct command_context_s *cmd_ctx) -{ - jtag_tap_t *tap; - int retval; - - LOG_DEBUG("Init JTAG chain"); - - tap = jtag_tap_next_enabled(NULL); - if( tap == NULL ){ - LOG_ERROR("There are no enabled taps?"); - return ERROR_JTAG_INIT_FAILED; - } - - jtag_add_tlr(); - if ((retval=jtag_execute_queue())!=ERROR_OK) - return retval; - - /* examine chain first, as this could discover the real chain layout */ - if (jtag_examine_chain() != ERROR_OK) - { - LOG_ERROR("trying to validate configured JTAG chain anyway..."); - } - - if (jtag_validate_chain() != ERROR_OK) - { - LOG_WARNING("Could not validate JTAG chain, continuing anyway..."); - } - - return ERROR_OK; -} - -int jtag_interface_quit(void) -{ - if (!jtag || !jtag->quit) - return ERROR_OK; - - // close the JTAG interface - int result = jtag->quit(); - if (ERROR_OK != result) - LOG_ERROR("failed: %d", result); - - return ERROR_OK; -} - - -int jtag_init_reset(struct command_context_s *cmd_ctx) -{ - int retval; - - if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK) - return retval; - - LOG_DEBUG("Trying to bring the JTAG controller to life by asserting TRST / RESET"); - - /* Reset can happen after a power cycle. - * - * Ideally we would only assert TRST or run RESET before the target reset. - * - * However w/srst_pulls_trst, trst is asserted together with the target - * reset whether we want it or not. - * - * NB! Some targets have JTAG circuitry disabled until a - * trst & srst has been asserted. - * - * NB! here we assume nsrst/ntrst delay are sufficient! - * - * NB! order matters!!!! srst *can* disconnect JTAG circuitry - * - */ - jtag_add_reset(1, 0); /* RESET or TRST */ - if (jtag_reset_config & RESET_HAS_SRST) - { - jtag_add_reset(1, 1); - if ((jtag_reset_config & RESET_SRST_PULLS_TRST)==0) - jtag_add_reset(0, 1); - } - jtag_add_reset(0, 0); - if ((retval = jtag_execute_queue()) != ERROR_OK) - return retval; - - /* Check that we can communication on the JTAG chain + eventually we want to - * be able to perform enumeration only after OpenOCD has started - * telnet and GDB server - * - * That would allow users to more easily perform any magic they need to before - * reset happens. - */ - return jtag_init_inner(cmd_ctx); -} - -int jtag_init(struct command_context_s *cmd_ctx) -{ - int retval; - if ((retval=jtag_interface_init(cmd_ctx)) != ERROR_OK) - return retval; - if (jtag_init_inner(cmd_ctx)==ERROR_OK) - { - return ERROR_OK; - } - return jtag_init_reset(cmd_ctx); -} - -void jtag_set_speed_khz(unsigned khz) -{ - speed_khz = khz; -} -unsigned jtag_get_speed_khz(void) -{ - return speed_khz; -} - -static int default_khz(int khz, int *jtag_speed) -{ - LOG_ERROR("Translation from khz to jtag_speed not implemented"); - return ERROR_FAIL; -} - -static int default_speed_div(int speed, int *khz) -{ - LOG_ERROR("Translation from jtag_speed to khz not implemented"); - return ERROR_FAIL; -} - -static int default_power_dropout(int *dropout) -{ - *dropout=0; /* by default we can't detect power dropout */ - return ERROR_OK; -} - -static int default_srst_asserted(int *srst_asserted) -{ - *srst_asserted=0; /* by default we can't detect srst asserted */ - return ERROR_OK; -} - -static int handle_interface_command(struct command_context_s *cmd_ctx, - char *cmd, char **args, int argc) -{ - /* check whether the interface is already configured */ - if (jtag_interface) - { - LOG_WARNING("Interface already configured, ignoring"); - return ERROR_OK; - } - - /* interface name is a mandatory argument */ - if (argc != 1 || args[0][0] == '\0') - return ERROR_COMMAND_SYNTAX_ERROR; - - for (unsigned i = 0; NULL != jtag_interfaces[i]; i++) - { - if (strcmp(args[0], jtag_interfaces[i]->name) != 0) - continue; - - int retval = jtag_interfaces[i]->register_commands(cmd_ctx); - if (ERROR_OK != retval) - return retval; - - jtag_interface = jtag_interfaces[i]; - - if (jtag_interface->khz == NULL) - jtag_interface->khz = default_khz; - if (jtag_interface->speed_div == NULL) - jtag_interface->speed_div = default_speed_div; - if (jtag_interface->power_dropout == NULL) - jtag_interface->power_dropout = default_power_dropout; - if (jtag_interface->srst_asserted == NULL) - jtag_interface->srst_asserted = default_srst_asserted; - - return ERROR_OK; - } - - /* no valid interface was found (i.e. the configuration option, - * didn't match one of the compiled-in interfaces - */ - LOG_ERROR("The specified JTAG interface was not found (%s)", args[0]); - handle_interface_list_command(cmd_ctx, cmd, args, argc); - return ERROR_JTAG_INVALID_INTERFACE; -} - -static int handle_interface_list_command(struct command_context_s *cmd_ctx, - char *cmd, char **args, int argc) -{ - if (strcmp(cmd, "interface_list") == 0 && argc > 0) - return ERROR_COMMAND_SYNTAX_ERROR; - - command_print(cmd_ctx, "The following JTAG interfaces are available:"); - for (unsigned i = 0; NULL != jtag_interfaces[i]; i++) - { - const char *name = jtag_interfaces[i]->name; - command_print(cmd_ctx, "%u: %s", i + 1, name); - } - - return ERROR_OK; -} - -static int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - int e; - char buf[1024]; - Jim_Obj *newargs[ 10 ]; - /* - * CONVERT SYNTAX - * argv[-1] = command - * argv[ 0] = ir length - * argv[ 1] = ir capture - * argv[ 2] = ir mask - * argv[ 3] = not actually used by anything but in the docs - */ - - if( argc < 4 ){ - command_print( cmd_ctx, "OLD DEPRECATED SYNTAX: Please use the NEW syntax"); - return ERROR_OK; - } - command_print( cmd_ctx, "OLD SYNTAX: DEPRECATED - translating to new syntax"); - command_print( cmd_ctx, "jtag newtap CHIP TAP -irlen %s -ircapture %s -irvalue %s", - args[0], - args[1], - args[2] ); - command_print( cmd_ctx, "Example: STM32 has 2 taps, the cortexM3(len4) + 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 ); - newargs[1] = Jim_NewStringObj( interp, "newtap", -1 ); - sprintf( buf, "chip%d", jtag_tap_count() ); - newargs[2] = Jim_NewStringObj( interp, buf, -1 ); - sprintf( buf, "tap%d", jtag_tap_count() ); - newargs[3] = Jim_NewStringObj( interp, buf, -1 ); - newargs[4] = Jim_NewStringObj( interp, "-irlen", -1 ); - newargs[5] = Jim_NewStringObj( interp, args[0], -1 ); - newargs[6] = Jim_NewStringObj( interp, "-ircapture", -1 ); - newargs[7] = Jim_NewStringObj( interp, args[1], -1 ); - newargs[8] = Jim_NewStringObj( interp, "-irmask", -1 ); - newargs[9] = Jim_NewStringObj( interp, args[2], -1 ); - - command_print( cmd_ctx, "NEW COMMAND:"); - sprintf( buf, "%s %s %s %s %s %s %s %s %s %s", - Jim_GetString( newargs[0], NULL ), - Jim_GetString( newargs[1], NULL ), - Jim_GetString( newargs[2], NULL ), - Jim_GetString( newargs[3], NULL ), - Jim_GetString( newargs[4], NULL ), - Jim_GetString( newargs[5], NULL ), - Jim_GetString( newargs[6], NULL ), - Jim_GetString( newargs[7], NULL ), - Jim_GetString( newargs[8], NULL ), - Jim_GetString( newargs[9], NULL ) ); - - e = jim_jtag_command( interp, 10, newargs ); - if( e != JIM_OK ){ - command_print( cmd_ctx, "%s", Jim_GetString( Jim_GetResult(interp), NULL ) ); - } - return e; -} - -static int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - jtag_tap_t *tap; - - tap = jtag_all_taps(); - command_print(cmd_ctx, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr "); - command_print(cmd_ctx, "---|--------------------|---------|------------|------------|------|------|------|---------"); - - while( tap ){ - u32 expected, expected_mask, cur_instr, ii; - expected = buf_get_u32(tap->expected, 0, tap->ir_length); - expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length); - cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length); - - command_print(cmd_ctx, - "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x", - tap->abs_chain_position, - tap->dotted_name, - tap->enabled ? 'Y' : 'n', - tap->idcode, - (tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0), - tap->ir_length, - expected, - expected_mask, - cur_instr); - - for (ii = 1; ii < tap->expected_ids_cnt; ii++) { - command_print(cmd_ctx, " | | | | 0x%08x | | | | ", - tap->expected_ids[ii]); - } - - tap = tap->next_tap; - } - - return ERROR_OK; -} - -static int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - int new_cfg = 0; - int mask = 0; - - if (argc < 1) - return ERROR_COMMAND_SYNTAX_ERROR; - - /* Original versions cared about the order of these tokens: - * reset_config signals [combination [trst_type [srst_type]]] - * They also clobbered the previous configuration even on error. - * - * Here we don't care about the order, and only change values - * which have been explicitly specified. - */ - for (; argc; argc--, args++) { - int tmp = 0; - int m; - - /* signals */ - m = RESET_HAS_TRST | RESET_HAS_SRST; - if (strcmp(*args, "none") == 0) - tmp = RESET_NONE; - else if (strcmp(*args, "trst_only") == 0) - tmp = RESET_HAS_TRST; - else if (strcmp(*args, "srst_only") == 0) - tmp = RESET_HAS_SRST; - else if (strcmp(*args, "trst_and_srst") == 0) - tmp = RESET_HAS_TRST | RESET_HAS_SRST; - else - m = 0; - if (mask & m) { - LOG_ERROR("extra reset_config %s spec (%s)", - "signal", *args); - return ERROR_INVALID_ARGUMENTS; - } - if (m) - goto next; - - /* combination (options for broken wiring) */ - m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST; - if (strcmp(*args, "separate") == 0) - /* separate reset lines - default */; - else if (strcmp(*args, "srst_pulls_trst") == 0) - tmp |= RESET_SRST_PULLS_TRST; - else if (strcmp(*args, "trst_pulls_srst") == 0) - tmp |= RESET_TRST_PULLS_SRST; - else if (strcmp(*args, "combined") == 0) - tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST; - else - m = 0; - if (mask & m) { - LOG_ERROR("extra reset_config %s spec (%s)", - "combination", *args); - return ERROR_INVALID_ARGUMENTS; - } - if (m) - goto next; - - /* trst_type (NOP without HAS_TRST) */ - m = RESET_TRST_OPEN_DRAIN; - if (strcmp(*args, "trst_open_drain") == 0) - tmp |= RESET_TRST_OPEN_DRAIN; - else if (strcmp(*args, "trst_push_pull") == 0) - /* push/pull from adapter - default */; - else - m = 0; - if (mask & m) { - LOG_ERROR("extra reset_config %s spec (%s)", - "trst_type", *args); - return ERROR_INVALID_ARGUMENTS; - } - if (m) - goto next; - - /* srst_type (NOP without HAS_SRST) */ - m |= RESET_SRST_PUSH_PULL; - if (strcmp(*args, "srst_push_pull") == 0) - tmp |= RESET_SRST_PUSH_PULL; - else if (strcmp(*args, "srst_open_drain") == 0) - /* open drain from adapter - default */; - else - m = 0; - if (mask & m) { - LOG_ERROR("extra reset_config %s spec (%s)", - "srst_type", *args); - return ERROR_INVALID_ARGUMENTS; - } - if (m) - goto next; - - /* caller provided nonsense; fail */ - LOG_ERROR("unknown reset_config flag (%s)", *args); - return ERROR_INVALID_ARGUMENTS; - -next: - /* Remember the bits which were specified (mask) - * and their new values (new_cfg). - */ - mask |= m; - new_cfg |= tmp; - } - - /* clear previous values of those bits, save new values */ - jtag_reset_config &= ~mask; - jtag_reset_config |= new_cfg; - - return ERROR_OK; -} - -static int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, - char *cmd, char **args, int argc) -{ - if (argc > 1) - return ERROR_COMMAND_SYNTAX_ERROR; - if (argc == 1) - jtag_set_nsrst_delay(strtoul(args[0], NULL, 0)); - command_print(cmd_ctx, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay()); - return ERROR_OK; -} - -static int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, - char *cmd, char **args, int argc) -{ - if (argc > 1) - return ERROR_COMMAND_SYNTAX_ERROR; - if (argc == 1) - jtag_set_ntrst_delay(strtoul(args[0], NULL, 0)); - command_print(cmd_ctx, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay()); - return ERROR_OK; -} - -static int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - int retval = ERROR_OK; - - if (argc > 1) - return ERROR_COMMAND_SYNTAX_ERROR; - if (argc == 1) - { - LOG_DEBUG("handle jtag speed"); - - int cur_speed = 0; - cur_speed = jtag_speed = strtoul(args[0], NULL, 0); - - /* this command can be called during CONFIG, - * in which case jtag isn't initialized */ - if (jtag) - retval = jtag->speed(cur_speed); - } - command_print(cmd_ctx, "jtag_speed: %d", jtag_speed); - - return retval; -} - -static int handle_jtag_khz_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc > 1) - return ERROR_COMMAND_SYNTAX_ERROR; - - int retval = ERROR_OK; - int cur_speed = 0; - if (argc == 1) - { - LOG_DEBUG("handle jtag khz"); - - jtag_set_speed_khz(strtoul(args[0], NULL, 0)); - if (jtag != NULL) - { - LOG_DEBUG("have interface set up"); - int speed_div1; - retval = jtag->khz(jtag_get_speed_khz(), &speed_div1); - if (ERROR_OK != retval) - { - jtag_set_speed_khz(0); - return retval; - } - cur_speed = jtag_speed = speed_div1; - - retval = jtag->speed(cur_speed); - } - else - hasKHz = true; - } - - cur_speed = jtag_get_speed_khz(); - if (jtag != NULL) - { - retval = jtag->speed_div(jtag_speed, &cur_speed); - if (ERROR_OK != retval) - return retval; - } - - if (cur_speed) - command_print(cmd_ctx, "%d kHz", cur_speed); - else - command_print(cmd_ctx, "RCLK - adaptive"); - return retval; - -} - -static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, - char *cmd, char **args, int argc) -{ - if (argc != 2) - return ERROR_COMMAND_SYNTAX_ERROR; - - int trst = -1; - if (args[0][0] == '1') - trst = 1; - else if (args[0][0] == '0') - trst = 0; - else - return ERROR_COMMAND_SYNTAX_ERROR; - - int srst = -1; - if (args[1][0] == '1') - srst = 1; - else if (args[1][0] == '0') - srst = 0; - else - return ERROR_COMMAND_SYNTAX_ERROR; - - if (jtag_interface_init(cmd_ctx) != ERROR_OK) - return ERROR_JTAG_INIT_FAILED; - - jtag_add_reset(trst, srst); - jtag_execute_queue(); - - return ERROR_OK; -} - -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), jtag_get_end_state()); - jtag_execute_queue(); - - return ERROR_OK; -} - -/* - * For "irscan" or "drscan" commands, the "end" (really, "next") state - * should be stable ... and *NOT* a shift state, otherwise free-running - * jtag clocks could change the values latched by the update state. - */ -static bool scan_is_safe(tap_state_t state) -{ - switch (state) - { - case TAP_RESET: - case TAP_IDLE: - case TAP_DRPAUSE: - case TAP_IRPAUSE: - return true; - default: - return false; - } -} - - -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; - } - - /* optional "-endstate" "statename" at the end of the arguments, - * so that e.g. IRPAUSE can let us load the data register before - * entering RUN/IDLE to execute the instruction we load here. - */ - endstate = TAP_IDLE; - - 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 { - if (!scan_is_safe(endstate)) - LOG_WARNING("irscan with unsafe " - "endstate \"%s\"", cpA); - /* 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 < num_fields; i++) - { - tap = jtag_tap_by_string( args[i*2] ); - if (tap==NULL) - { - command_print( cmd_ctx, "Tap: %s unknown", args[i*2] ); - return ERROR_FAIL; - } - int field_size = tap->ir_length; - fields[i].tap = tap; - fields[i].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].in_value = NULL; - } - - /* did we have an endstate? */ - jtag_add_ir_scan(num_fields, fields, endstate); - - int retval=jtag_execute_queue(); - - for (i = 0; i < num_fields; i++) - free(fields[i].out_value); - - free (fields); - - return retval; -} - -static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args) -{ - int retval; - scan_field_t *fields; - int num_fields; - int field_count = 0; - int i, e; - jtag_tap_t *tap; - 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)) - { - Jim_WrongNumArgs(interp, 1, args, "wrong arguments"); - return JIM_ERR; - } - - endstate = TAP_IDLE; - - /* 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 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" - * e.g. DRPAUSE so we can issue more instructions - * before entering RUN/IDLE and executing them. - */ - - /* 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 { - if (!scan_is_safe(endstate)) - LOG_WARNING("drscan with unsafe " - "endstate \"%s\"", cp); - - /* 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_tap_by_jim_obj( interp, args[1] ); - if( tap == NULL ){ - return JIM_ERR; - } - - num_fields=(argc-2)/2; - fields = malloc(sizeof(scan_field_t) * num_fields); - for (i = 2; i < argc; i+=2) - { - long bits; - int len; - const char *str; - - Jim_GetLong(interp, args[i], &bits); - str = Jim_GetString(args[i+1], &len); - - fields[field_count].tap = tap; - fields[field_count].num_bits = bits; - fields[field_count].out_value = malloc(CEIL(bits, 8)); - str_to_buf(str, len, fields[field_count].out_value, bits, 0); - fields[field_count].in_value = fields[field_count].out_value; - field_count++; - } - - jtag_add_dr_scan(num_fields, fields, endstate); - - retval = jtag_execute_queue(); - if (retval != ERROR_OK) - { - Jim_SetResultString(interp, "drscan: jtag execute failed",-1); - return JIM_ERR; - } - - field_count=0; - Jim_Obj *list = Jim_NewListObj(interp, NULL, 0); - for (i = 2; i < argc; i+=2) - { - long bits; - char *str; - - Jim_GetLong(interp, args[i], &bits); - str = buf_to_str(fields[field_count].in_value, bits, 16); - free(fields[field_count].out_value); - - Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str))); - free(str); - field_count++; - } - - Jim_SetResult(interp, list); - - free(fields); - - return JIM_OK; -} - - -static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args) -{ - Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_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) - { - 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; -} - -void jtag_set_verify(bool enable) -{ - jtag_verify = enable; -} - -bool jtag_will_verify() -{ - return jtag_verify; -} - -static int handle_verify_jtag_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc > 1) - return ERROR_COMMAND_SYNTAX_ERROR; - - if (argc == 1) - { - if (strcmp(args[0], "enable") == 0) - jtag_set_verify(true); - else if (strcmp(args[0], "disable") == 0) - jtag_set_verify(false); - else - return ERROR_COMMAND_SYNTAX_ERROR; - } - - const char *status = jtag_will_verify() ? "enabled": "disabled"; - command_print(cmd_ctx, "verify jtag capture is %s", status); - - return ERROR_OK; -} - - -int jtag_power_dropout(int *dropout) -{ - return jtag->power_dropout(dropout); -} - -int jtag_srst_asserted(int *srst_asserted) -{ - return jtag->srst_asserted(srst_asserted); -} - -void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e) -{ - jtag_tap_event_action_t * jteap; - int done; - - jteap = tap->event_action; - - done = 0; - while (jteap) { - if (jteap->event == e) { - done = 1; - LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n", - tap->dotted_name, - e, - Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name, - Jim_GetString(jteap->body, NULL) ); - if (Jim_EvalObj(interp, jteap->body) != JIM_OK) { - Jim_PrintErrorMessage(interp); - } - } - - jteap = jteap->next; - } - - if (!done) { - LOG_DEBUG( "event %d %s - no action", - e, - Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name); - } -} - -static int handle_tms_sequence_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc > 1) - return ERROR_COMMAND_SYNTAX_ERROR; - - if (argc == 1) - { - bool use_new_table; - if (strcmp(args[0], "short") == 0) - use_new_table = true; - else if (strcmp(args[0], "long") == 0) - use_new_table = false; - else - return ERROR_COMMAND_SYNTAX_ERROR; - - tap_use_new_tms_table(use_new_table); - } - - command_print(cmd_ctx, "tms sequence is %s", - tap_uses_new_tms_table() ? "short": "long"); - - return ERROR_OK; -} - -int jtag_add_statemove(tap_state_t goal_state) -{ - tap_state_t cur_state = cmd_queue_cur_state; - - LOG_DEBUG( "cur_state=%s goal_state=%s", - tap_state_name(cur_state), - tap_state_name(goal_state) ); - - - if (goal_state==cur_state ) - ; /* nothing to do */ - else if( goal_state==TAP_RESET ) - { - jtag_add_tlr(); - } - else if( tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state) ) - { - unsigned tms_bits = tap_get_tms_path(cur_state, goal_state); - unsigned tms_count = tap_get_tms_path_len(cur_state, goal_state); - tap_state_t moves[8]; - assert(tms_count < DIM(moves)); - - for (unsigned i = 0; i < tms_count; i++, tms_bits >>= 1) - { - bool bit = tms_bits & 1; - - cur_state = tap_state_transition(cur_state, bit); - moves[i] = cur_state; - } - - jtag_add_pathmove(tms_count, moves); - } - else if( tap_state_transition(cur_state, true) == goal_state - || tap_state_transition(cur_state, false) == goal_state ) - { - jtag_add_pathmove(1, &goal_state); - } - - else - return ERROR_FAIL; - - return ERROR_OK; -} - -void jtag_set_nsrst_delay(unsigned delay) -{ - jtag_nsrst_delay = delay; -} -unsigned jtag_get_nsrst_delay(void) -{ - return jtag_nsrst_delay; -} -void jtag_set_ntrst_delay(unsigned delay) -{ - jtag_ntrst_delay = delay; -} -unsigned jtag_get_ntrst_delay(void) -{ - return jtag_ntrst_delay; -} -- cgit v1.2.3