From 81184adfb0bf71e25674f827ef92a48092b88d6b Mon Sep 17 00:00:00 2001 From: oharboe Date: Mon, 25 Feb 2008 14:50:31 +0000 Subject: [PATCH] Fix from Pavel Chromy. https://lists.berlios.de/pipermail/openocd-development/2008-February/001018.html git-svn-id: svn://svn.berlios.de/openocd/trunk@343 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/jtag/jtag.c | 3670 ++++++++++++++++++++++++----------------------- src/jtag/jtag.h | 645 +++++---- 2 files changed, 2159 insertions(+), 2156 deletions(-) diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index 605c34cf..5696fa0b 100644 --- a/src/jtag/jtag.c +++ b/src/jtag/jtag.c @@ -1,1837 +1,1841 @@ -/*************************************************************************** - * Copyright (C) 2005 by Dominic Rath * - * Dominic.Rath@gmx.de * - * * - * This program is free software; you can redistribute it and/or modify * - * it under the terms of the GNU General Public License as published by * - * the Free Software Foundation; either version 2 of the License, or * - * (at your option) any later version. * - * * - * This program is distributed in the hope that it will be useful, * - * but WITHOUT ANY WARRANTY; without even the implied warranty of * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * - * GNU General Public License for more details. * - * * - * You should have received a copy of the GNU General Public License * - * along with this program; if not, write to the * - * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - ***************************************************************************/ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "replacements.h" - -#include "jtag.h" - -#include "command.h" -#include "log.h" -#include "interpreter.h" - -#include "stdlib.h" -#include "string.h" -#include - -char* tap_state_strings[16] = -{ - "tlr", - "sds", "cd", "sd", "e1d", "pd", "e2d", "ud", - "rti", - "sis", "ci", "si", "e1i", "pi", "e2i", "ui" -}; - -typedef struct cmd_queue_page_s -{ - void *address; - size_t used; - struct cmd_queue_page_s *next; -} cmd_queue_page_t; - -#define CMD_QUEUE_PAGE_SIZE (1024 * 1024) -static cmd_queue_page_t *cmd_queue_pages = NULL; - -/* tap_move[i][j]: tap movement command to go from state i to state j - * 0: Test-Logic-Reset - * 1: Run-Test/Idle - * 2: Shift-DR - * 3: Pause-DR - * 4: Shift-IR - * 5: Pause-IR - * - * SD->SD and SI->SI have to be caught in interface specific code - */ -u8 tap_move[6][6] = -{ -/* TLR RTI SD PD SI PI */ - {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */ - {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */ - {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */ - {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */ - {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */ - {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */ -}; - -int tap_move_map[16] = { - 0, -1, -1, 2, -1, 3, -1, -1, - 1, -1, -1, 4, -1, 5, -1, -1 -}; - -tap_transition_t tap_transitions[16] = -{ - {TAP_TLR, TAP_RTI}, /* TLR */ - {TAP_SIS, TAP_CD}, /* SDS */ - {TAP_E1D, TAP_SD}, /* CD */ - {TAP_E1D, TAP_SD}, /* SD */ - {TAP_UD, TAP_PD}, /* E1D */ - {TAP_E2D, TAP_PD}, /* PD */ - {TAP_UD, TAP_SD}, /* E2D */ - {TAP_SDS, TAP_RTI}, /* UD */ - {TAP_SDS, TAP_RTI}, /* RTI */ - {TAP_TLR, TAP_CI}, /* SIS */ - {TAP_E1I, TAP_SI}, /* CI */ - {TAP_E1I, TAP_SI}, /* SI */ - {TAP_UI, TAP_PI}, /* E1I */ - {TAP_E2I, TAP_PI}, /* PI */ - {TAP_UI, TAP_SI}, /* E2I */ - {TAP_SDS, TAP_RTI} /* UI */ -}; - -char* jtag_event_strings[] = -{ - "SRST asserted", - "TRST asserted", - "SRST released", - "TRST released" -}; - -enum tap_state end_state = TAP_TLR; -enum tap_state cur_state = TAP_TLR; -int jtag_trst = 0; -int jtag_srst = 0; - -jtag_command_t *jtag_command_queue = NULL; -jtag_command_t **last_comand_pointer = &jtag_command_queue; -jtag_device_t *jtag_devices = NULL; -int jtag_num_devices = 0; -int jtag_ir_scan_size = 0; -enum reset_types jtag_reset_config = RESET_NONE; -enum tap_state cmd_queue_end_state = TAP_TLR; -enum tap_state cmd_queue_cur_state = TAP_TLR; - -int jtag_verify_capture_ir = 1; - -/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */ -int jtag_nsrst_delay = 0; /* default to no nSRST delay */ -int jtag_ntrst_delay = 0; /* default to no nTRST delay */ - -/* maximum number of JTAG devices expected in the chain - */ -#define JTAG_MAX_CHAIN_SIZE 20 - -/* callbacks to inform high-level handlers about JTAG state changes */ -jtag_event_callback_t *jtag_event_callbacks; - -/* jtag interfaces (parport, FTDI-USB, TI-USB, ...) - */ -#if BUILD_PARPORT == 1 - extern jtag_interface_t parport_interface; -#endif - -#if BUILD_FT2232_FTD2XX == 1 - extern jtag_interface_t ft2232_interface; -#endif - -#if BUILD_FT2232_LIBFTDI == 1 - extern jtag_interface_t ft2232_interface; -#endif - -#if BUILD_AMTJTAGACCEL == 1 - extern jtag_interface_t amt_jtagaccel_interface; -#endif - -#if BUILD_EP93XX == 1 - extern jtag_interface_t ep93xx_interface; -#endif - -#if BUILD_AT91RM9200 == 1 - extern jtag_interface_t at91rm9200_interface; -#endif - -#if BUILD_GW16012 == 1 - extern jtag_interface_t gw16012_interface; -#endif - -#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1 - extern jtag_interface_t presto_interface; -#endif - -#if BUILD_USBPROG == 1 - extern jtag_interface_t usbprog_interface; -#endif - -jtag_interface_t *jtag_interfaces[] = { -#if BUILD_PARPORT == 1 - &parport_interface, -#endif -#if BUILD_FT2232_FTD2XX == 1 - &ft2232_interface, -#endif -#if BUILD_FT2232_LIBFTDI == 1 - &ft2232_interface, -#endif -#if BUILD_AMTJTAGACCEL == 1 - &amt_jtagaccel_interface, -#endif -#if BUILD_EP93XX == 1 - &ep93xx_interface, -#endif -#if BUILD_AT91RM9200 == 1 - &at91rm9200_interface, -#endif -#if BUILD_GW16012 == 1 - &gw16012_interface, -#endif -#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1 - &presto_interface, -#endif -#if BUILD_USBPROG == 1 - &usbprog_interface, -#endif - NULL, -}; - -jtag_interface_t *jtag = NULL; - -/* configuration */ -char* jtag_interface = NULL; -int jtag_speed = -1; - - -/* forward declarations */ -int jtag_add_statemove(enum tap_state endstate); -int jtag_add_pathmove(int num_states, enum tap_state *path); -int jtag_add_runtest(int num_cycles, enum tap_state endstate); -int jtag_add_reset(int trst, int srst); -int jtag_add_end_state(enum tap_state endstate); -int jtag_add_sleep(u32 us); -int jtag_execute_queue(void); -int jtag_cancel_queue(void); - -/* jtag commands */ -int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); -int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); - -int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv) -{ - jtag_event_callback_t **callbacks_p = &jtag_event_callbacks; - - if (callback == NULL) - { - return ERROR_INVALID_ARGUMENTS; - } - - if (*callbacks_p) - { - while ((*callbacks_p)->next) - callbacks_p = &((*callbacks_p)->next); - callbacks_p = &((*callbacks_p)->next); - } - - (*callbacks_p) = malloc(sizeof(jtag_event_callback_t)); - (*callbacks_p)->callback = callback; - (*callbacks_p)->priv = priv; - (*callbacks_p)->next = NULL; - - return ERROR_OK; -} - -int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv)) -{ - jtag_event_callback_t **callbacks_p = &jtag_event_callbacks; - - if (callback == NULL) - { - return ERROR_INVALID_ARGUMENTS; - } - - while (*callbacks_p) - { - jtag_event_callback_t **next = &((*callbacks_p)->next); - if ((*callbacks_p)->callback == callback) - { - free(*callbacks_p); - *callbacks_p = *next; - } - callbacks_p = next; - } - - return ERROR_OK; -} - -int jtag_call_event_callbacks(enum jtag_event event) -{ - jtag_event_callback_t *callback = jtag_event_callbacks; - - DEBUG("jtag event: %s", jtag_event_strings[event]); - - while (callback) - { - callback->callback(event, callback->priv); - callback = callback->next; - } - - return ERROR_OK; -} - -/* returns a pointer to the pointer of the last command in queue - * this may be a pointer to the root pointer (jtag_command_queue) - * or to the next member of the last but one command - */ -jtag_command_t** jtag_get_last_command_p(void) -{ -/* jtag_command_t *cmd = jtag_command_queue; - - if (cmd) - while (cmd->next) - cmd = cmd->next; - else - return &jtag_command_queue; - - return &cmd->next;*/ - - return last_comand_pointer; -} - -/* returns a pointer to the n-th device in the scan chain */ -jtag_device_t* jtag_get_device(int num) -{ - jtag_device_t *device = jtag_devices; - int i = 0; - - while (device) - { - if (num == i) - return device; - device = device->next; - i++; - } - - ERROR("jtag device number %d not defined", num); - exit(-1); -} - -void* cmd_queue_alloc(size_t size) -{ - cmd_queue_page_t **p_page = &cmd_queue_pages; - int offset; - - if (*p_page) - { - while ((*p_page)->next) - p_page = &((*p_page)->next); - if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size) - p_page = &((*p_page)->next); - } - - if (!*p_page) - { - *p_page = malloc(sizeof(cmd_queue_page_t)); - (*p_page)->used = 0; - (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE); - (*p_page)->next = NULL; - } - - offset = (*p_page)->used; - (*p_page)->used += size; - - u8 *t=(u8 *)((*p_page)->address); - return t + offset; -} - -void cmd_queue_free() -{ - cmd_queue_page_t *page = cmd_queue_pages; - - while (page) - { - cmd_queue_page_t *last = page; - free(page->address); - page = page->next; - free(last); - } - - cmd_queue_pages = NULL; -} - +/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "replacements.h" + +#include "jtag.h" + +#include "command.h" +#include "log.h" +#include "interpreter.h" + +#include "stdlib.h" +#include "string.h" +#include + +char* tap_state_strings[16] = +{ + "tlr", + "sds", "cd", "sd", "e1d", "pd", "e2d", "ud", + "rti", + "sis", "ci", "si", "e1i", "pi", "e2i", "ui" +}; + +typedef struct cmd_queue_page_s +{ + void *address; + size_t used; + struct cmd_queue_page_s *next; +} cmd_queue_page_t; + +#define CMD_QUEUE_PAGE_SIZE (1024 * 1024) +static cmd_queue_page_t *cmd_queue_pages = NULL; + +/* tap_move[i][j]: tap movement command to go from state i to state j + * 0: Test-Logic-Reset + * 1: Run-Test/Idle + * 2: Shift-DR + * 3: Pause-DR + * 4: Shift-IR + * 5: Pause-IR + * + * SD->SD and SI->SI have to be caught in interface specific code + */ +u8 tap_move[6][6] = +{ +/* TLR RTI SD PD SI PI */ + {0x7f, 0x00, 0x17, 0x0a, 0x1b, 0x16}, /* TLR */ + {0x7f, 0x00, 0x25, 0x05, 0x2b, 0x0b}, /* RTI */ + {0x7f, 0x31, 0x00, 0x01, 0x0f, 0x2f}, /* SD */ + {0x7f, 0x30, 0x20, 0x17, 0x1e, 0x2f}, /* PD */ + {0x7f, 0x31, 0x07, 0x17, 0x00, 0x01}, /* SI */ + {0x7f, 0x30, 0x1c, 0x17, 0x20, 0x2f} /* PI */ +}; + +int tap_move_map[16] = { + 0, -1, -1, 2, -1, 3, -1, -1, + 1, -1, -1, 4, -1, 5, -1, -1 +}; + +tap_transition_t tap_transitions[16] = +{ + {TAP_TLR, TAP_RTI}, /* TLR */ + {TAP_SIS, TAP_CD}, /* SDS */ + {TAP_E1D, TAP_SD}, /* CD */ + {TAP_E1D, TAP_SD}, /* SD */ + {TAP_UD, TAP_PD}, /* E1D */ + {TAP_E2D, TAP_PD}, /* PD */ + {TAP_UD, TAP_SD}, /* E2D */ + {TAP_SDS, TAP_RTI}, /* UD */ + {TAP_SDS, TAP_RTI}, /* RTI */ + {TAP_TLR, TAP_CI}, /* SIS */ + {TAP_E1I, TAP_SI}, /* CI */ + {TAP_E1I, TAP_SI}, /* SI */ + {TAP_UI, TAP_PI}, /* E1I */ + {TAP_E2I, TAP_PI}, /* PI */ + {TAP_UI, TAP_SI}, /* E2I */ + {TAP_SDS, TAP_RTI} /* UI */ +}; + +char* jtag_event_strings[] = +{ + "SRST asserted", + "TRST asserted", + "SRST released", + "TRST released" +}; + +enum tap_state end_state = TAP_TLR; +enum tap_state cur_state = TAP_TLR; +int jtag_trst = 0; +int jtag_srst = 0; + +jtag_command_t *jtag_command_queue = NULL; +jtag_command_t **last_comand_pointer = &jtag_command_queue; +jtag_device_t *jtag_devices = NULL; +int jtag_num_devices = 0; +int jtag_ir_scan_size = 0; +enum reset_types jtag_reset_config = RESET_NONE; +enum tap_state cmd_queue_end_state = TAP_TLR; +enum tap_state cmd_queue_cur_state = TAP_TLR; + +int jtag_verify_capture_ir = 1; + +/* how long the OpenOCD should wait before attempting JTAG communication after reset lines deasserted (in ms) */ +int jtag_nsrst_delay = 0; /* default to no nSRST delay */ +int jtag_ntrst_delay = 0; /* default to no nTRST delay */ + +/* maximum number of JTAG devices expected in the chain + */ +#define JTAG_MAX_CHAIN_SIZE 20 + +/* callbacks to inform high-level handlers about JTAG state changes */ +jtag_event_callback_t *jtag_event_callbacks; + +/* jtag interfaces (parport, FTDI-USB, TI-USB, ...) + */ +#if BUILD_PARPORT == 1 + extern jtag_interface_t parport_interface; +#endif + +#if BUILD_FT2232_FTD2XX == 1 + extern jtag_interface_t ft2232_interface; +#endif + +#if BUILD_FT2232_LIBFTDI == 1 + extern jtag_interface_t ft2232_interface; +#endif + +#if BUILD_AMTJTAGACCEL == 1 + extern jtag_interface_t amt_jtagaccel_interface; +#endif + +#if BUILD_EP93XX == 1 + extern jtag_interface_t ep93xx_interface; +#endif + +#if BUILD_AT91RM9200 == 1 + extern jtag_interface_t at91rm9200_interface; +#endif + +#if BUILD_GW16012 == 1 + extern jtag_interface_t gw16012_interface; +#endif + +#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1 + extern jtag_interface_t presto_interface; +#endif + +#if BUILD_USBPROG == 1 + extern jtag_interface_t usbprog_interface; +#endif + +jtag_interface_t *jtag_interfaces[] = { +#if BUILD_PARPORT == 1 + &parport_interface, +#endif +#if BUILD_FT2232_FTD2XX == 1 + &ft2232_interface, +#endif +#if BUILD_FT2232_LIBFTDI == 1 + &ft2232_interface, +#endif +#if BUILD_AMTJTAGACCEL == 1 + &amt_jtagaccel_interface, +#endif +#if BUILD_EP93XX == 1 + &ep93xx_interface, +#endif +#if BUILD_AT91RM9200 == 1 + &at91rm9200_interface, +#endif +#if BUILD_GW16012 == 1 + &gw16012_interface, +#endif +#if BUILD_PRESTO_LIBFTDI == 1 || BUILD_PRESTO_FTD2XX == 1 + &presto_interface, +#endif +#if BUILD_USBPROG == 1 + &usbprog_interface, +#endif + NULL, +}; + +jtag_interface_t *jtag = NULL; + +/* configuration */ +jtag_interface_t *jtag_interface = NULL; +int jtag_speed = 0; + + +/* forward declarations */ +int jtag_add_statemove(enum tap_state endstate); +int jtag_add_pathmove(int num_states, enum tap_state *path); +int jtag_add_runtest(int num_cycles, enum tap_state endstate); +int jtag_add_reset(int trst, int srst); +int jtag_add_end_state(enum tap_state endstate); +int jtag_add_sleep(u32 us); +int jtag_execute_queue(void); +int jtag_cancel_queue(void); + +/* jtag commands */ +int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); +int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); + +int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv) +{ + jtag_event_callback_t **callbacks_p = &jtag_event_callbacks; + + if (callback == NULL) + { + return ERROR_INVALID_ARGUMENTS; + } + + if (*callbacks_p) + { + while ((*callbacks_p)->next) + callbacks_p = &((*callbacks_p)->next); + callbacks_p = &((*callbacks_p)->next); + } + + (*callbacks_p) = malloc(sizeof(jtag_event_callback_t)); + (*callbacks_p)->callback = callback; + (*callbacks_p)->priv = priv; + (*callbacks_p)->next = NULL; + + return ERROR_OK; +} + +int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv)) +{ + jtag_event_callback_t **callbacks_p = &jtag_event_callbacks; + + if (callback == NULL) + { + return ERROR_INVALID_ARGUMENTS; + } + + while (*callbacks_p) + { + jtag_event_callback_t **next = &((*callbacks_p)->next); + if ((*callbacks_p)->callback == callback) + { + free(*callbacks_p); + *callbacks_p = *next; + } + callbacks_p = next; + } + + return ERROR_OK; +} + +int jtag_call_event_callbacks(enum jtag_event event) +{ + jtag_event_callback_t *callback = jtag_event_callbacks; + + DEBUG("jtag event: %s", jtag_event_strings[event]); + + while (callback) + { + callback->callback(event, callback->priv); + callback = callback->next; + } + + return ERROR_OK; +} + +/* returns a pointer to the pointer of the last command in queue + * this may be a pointer to the root pointer (jtag_command_queue) + * or to the next member of the last but one command + */ +jtag_command_t** jtag_get_last_command_p(void) +{ +/* jtag_command_t *cmd = jtag_command_queue; + + if (cmd) + while (cmd->next) + cmd = cmd->next; + else + return &jtag_command_queue; + + return &cmd->next;*/ + + return last_comand_pointer; +} + +/* returns a pointer to the n-th device in the scan chain */ +jtag_device_t* jtag_get_device(int num) +{ + jtag_device_t *device = jtag_devices; + int i = 0; + + while (device) + { + if (num == i) + return device; + device = device->next; + i++; + } + + ERROR("jtag device number %d not defined", num); + exit(-1); +} + +void* cmd_queue_alloc(size_t size) +{ + cmd_queue_page_t **p_page = &cmd_queue_pages; + int offset; + + if (*p_page) + { + while ((*p_page)->next) + p_page = &((*p_page)->next); + if (CMD_QUEUE_PAGE_SIZE - (*p_page)->used < size) + p_page = &((*p_page)->next); + } + + if (!*p_page) + { + *p_page = malloc(sizeof(cmd_queue_page_t)); + (*p_page)->used = 0; + (*p_page)->address = malloc(CMD_QUEUE_PAGE_SIZE); + (*p_page)->next = NULL; + } + + offset = (*p_page)->used; + (*p_page)->used += size; + + u8 *t=(u8 *)((*p_page)->address); + return t + offset; +} + +void cmd_queue_free() +{ + cmd_queue_page_t *page = cmd_queue_pages; + + while (page) + { + cmd_queue_page_t *last = page; + free(page->address); + page = page->next; + free(last); + } + + cmd_queue_pages = NULL; +} + int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) -{ - jtag_command_t **last_cmd; - jtag_device_t *device; - int i, j; - int scan_size = 0; - - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - return ERROR_JTAG_TRST_ASSERTED; - } - - last_cmd = jtag_get_last_command_p(); - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_SCAN; - - /* allocate memory for ir scan command */ - (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); - (*last_cmd)->cmd.scan->ir_scan = 1; - (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */ - (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t)); - (*last_cmd)->cmd.scan->end_state = state; - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_RELEASED); - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; - - for (i = 0; i < jtag_num_devices; i++) - { - int found = 0; - device = jtag_get_device(i); - scan_size = device->ir_length; - (*last_cmd)->cmd.scan->fields[i].device = i; - (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size; - (*last_cmd)->cmd.scan->fields[i].in_value = NULL; - (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */ - - /* search the list */ - for (j = 0; j < num_fields; j++) - { - if (i == fields[j].device) - { - found = 1; - (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - - if (jtag_verify_capture_ir) - { - if (fields[j].in_handler==NULL) - { - jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL); - } else - { - (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler; - (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv; - (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected; - (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask; - } - } - - device->bypass = 0; - break; - } - } - - if (!found) - { - /* if a device isn't listed, set it to BYPASS */ - (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[i].out_mask = NULL; - device->bypass = 1; - - } - - /* update device information */ - buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size); - } - - return ERROR_OK; -} - +{ + jtag_command_t **last_cmd; + jtag_device_t *device; + int i, j; + int scan_size = 0; + + if (jtag_trst == 1) + { + WARNING("JTAG command queued, while TRST is low (TAP in reset)"); + return ERROR_JTAG_TRST_ASSERTED; + } + + last_cmd = jtag_get_last_command_p(); + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + (*last_cmd)->next = NULL; + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->type = JTAG_SCAN; + + /* allocate memory for ir scan command */ + (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); + (*last_cmd)->cmd.scan->ir_scan = 1; + (*last_cmd)->cmd.scan->num_fields = jtag_num_devices; /* one field per device */ + (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(jtag_num_devices * sizeof(scan_field_t)); + (*last_cmd)->cmd.scan->end_state = state; + + if (state != -1) + cmd_queue_end_state = state; + + if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_RELEASED); + + if (cmd_queue_end_state == TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + + cmd_queue_cur_state = cmd_queue_end_state; + + for (i = 0; i < jtag_num_devices; i++) + { + int found = 0; + device = jtag_get_device(i); + scan_size = device->ir_length; + (*last_cmd)->cmd.scan->fields[i].device = i; + (*last_cmd)->cmd.scan->fields[i].num_bits = scan_size; + (*last_cmd)->cmd.scan->fields[i].in_value = NULL; + (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; /* disable verification by default */ + + /* search the list */ + for (j = 0; j < num_fields; j++) + { + if (i == fields[j].device) + { + found = 1; + (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); + (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); + + if (jtag_verify_capture_ir) + { + if (fields[j].in_handler==NULL) + { + jtag_set_check_value((*last_cmd)->cmd.scan->fields+i, device->expected, device->expected_mask, NULL); + } else + { + (*last_cmd)->cmd.scan->fields[i].in_handler = fields[j].in_handler; + (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[j].in_handler_priv; + (*last_cmd)->cmd.scan->fields[i].in_check_value = device->expected; + (*last_cmd)->cmd.scan->fields[i].in_check_mask = device->expected_mask; + } + } + + device->bypass = 0; + break; + } + } + + if (!found) + { + /* if a device isn't listed, set it to BYPASS */ + (*last_cmd)->cmd.scan->fields[i].out_value = buf_set_ones(cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); + (*last_cmd)->cmd.scan->fields[i].out_mask = NULL; + device->bypass = 1; + + } + + /* update device information */ + buf_cpy((*last_cmd)->cmd.scan->fields[i].out_value, jtag_get_device(i)->cur_instr, scan_size); + } + + return ERROR_OK; +} + int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state) -{ - jtag_command_t **last_cmd; - int i; - - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - return ERROR_JTAG_TRST_ASSERTED; - } - - last_cmd = jtag_get_last_command_p(); - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_SCAN; - - /* allocate memory for ir scan command */ - (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); - (*last_cmd)->cmd.scan->ir_scan = 1; - (*last_cmd)->cmd.scan->num_fields = num_fields; - (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t)); - (*last_cmd)->cmd.scan->end_state = state; - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_RELEASED); - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; - - for (i = 0; i < num_fields; i++) - { - int num_bits = fields[i].num_bits; - int num_bytes = CEIL(fields[i].num_bits, 8); - (*last_cmd)->cmd.scan->fields[i].device = fields[i].device; - (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits; - (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value; - (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value; - (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask; - (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; - (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL; - } - return ERROR_OK; -} - +{ + jtag_command_t **last_cmd; + int i; + + if (jtag_trst == 1) + { + WARNING("JTAG command queued, while TRST is low (TAP in reset)"); + return ERROR_JTAG_TRST_ASSERTED; + } + + last_cmd = jtag_get_last_command_p(); + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + (*last_cmd)->next = NULL; + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->type = JTAG_SCAN; + + /* allocate memory for ir scan command */ + (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); + (*last_cmd)->cmd.scan->ir_scan = 1; + (*last_cmd)->cmd.scan->num_fields = num_fields; + (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t)); + (*last_cmd)->cmd.scan->end_state = state; + + if (state != -1) + cmd_queue_end_state = state; + + if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_RELEASED); + + if (cmd_queue_end_state == TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + + cmd_queue_cur_state = cmd_queue_end_state; + + for (i = 0; i < num_fields; i++) + { + int num_bits = fields[i].num_bits; + int num_bytes = CEIL(fields[i].num_bits, 8); + (*last_cmd)->cmd.scan->fields[i].device = fields[i].device; + (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits; + (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits); + (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits); + (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value; + (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value; + (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask; + (*last_cmd)->cmd.scan->fields[i].in_handler = NULL; + (*last_cmd)->cmd.scan->fields[i].in_handler_priv = NULL; + } + return ERROR_OK; +} + int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) -{ - int i, j; - int bypass_devices = 0; - int field_count = 0; - jtag_command_t **last_cmd = jtag_get_last_command_p(); - jtag_device_t *device = jtag_devices; - int scan_size; - - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - return ERROR_JTAG_TRST_ASSERTED; - } - - /* count devices in bypass */ - while (device) - { - if (device->bypass) - bypass_devices++; - device = device->next; - } - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->next = NULL; - (*last_cmd)->type = JTAG_SCAN; - - /* allocate memory for dr scan command */ - (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); - (*last_cmd)->cmd.scan->ir_scan = 0; - (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices; - (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t)); - (*last_cmd)->cmd.scan->end_state = state; - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_RELEASED); - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; - - for (i = 0; i < jtag_num_devices; i++) - { - int found = 0; - (*last_cmd)->cmd.scan->fields[field_count].device = i; - - for (j = 0; j < num_fields; j++) - { - if (i == fields[j].device) - { - found = 1; - scan_size = fields[j].num_bits; - (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size; - (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); - (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value; - (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value; - (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask; - (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler; - (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv; - } - } - if (!found) - { - /* if a device isn't listed, the BYPASS register should be selected */ - if (!jtag_get_device(i)->bypass) - { - ERROR("BUG: no scan data for a device not in BYPASS"); - exit(-1); - } - - /* program the scan field to 1 bit length, and ignore it's value */ - (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1; - (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL; - (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL; - (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL; - } - else - { - /* if a device is listed, the BYPASS register must not be selected */ - if (jtag_get_device(i)->bypass) - { - WARNING("scan data for a device in BYPASS"); - } - } - } - return ERROR_OK; -} - - +{ + int i, j; + int bypass_devices = 0; + int field_count = 0; + jtag_command_t **last_cmd = jtag_get_last_command_p(); + jtag_device_t *device = jtag_devices; + int scan_size; + + if (jtag_trst == 1) + { + WARNING("JTAG command queued, while TRST is low (TAP in reset)"); + return ERROR_JTAG_TRST_ASSERTED; + } + + /* count devices in bypass */ + while (device) + { + if (device->bypass) + bypass_devices++; + device = device->next; + } + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->next = NULL; + (*last_cmd)->type = JTAG_SCAN; + + /* allocate memory for dr scan command */ + (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); + (*last_cmd)->cmd.scan->ir_scan = 0; + (*last_cmd)->cmd.scan->num_fields = num_fields + bypass_devices; + (*last_cmd)->cmd.scan->fields = cmd_queue_alloc((num_fields + bypass_devices) * sizeof(scan_field_t)); + (*last_cmd)->cmd.scan->end_state = state; + + if (state != -1) + cmd_queue_end_state = state; + + if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_RELEASED); + + if (cmd_queue_end_state == TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + + cmd_queue_cur_state = cmd_queue_end_state; + + for (i = 0; i < jtag_num_devices; i++) + { + int found = 0; + (*last_cmd)->cmd.scan->fields[field_count].device = i; + + for (j = 0; j < num_fields; j++) + { + if (i == fields[j].device) + { + found = 1; + scan_size = fields[j].num_bits; + (*last_cmd)->cmd.scan->fields[field_count].num_bits = scan_size; + (*last_cmd)->cmd.scan->fields[field_count].out_value = buf_cpy(fields[j].out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); + (*last_cmd)->cmd.scan->fields[field_count].out_mask = buf_cpy(fields[j].out_mask, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size); + (*last_cmd)->cmd.scan->fields[field_count].in_value = fields[j].in_value; + (*last_cmd)->cmd.scan->fields[field_count].in_check_value = fields[j].in_check_value; + (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = fields[j].in_check_mask; + (*last_cmd)->cmd.scan->fields[field_count].in_handler = fields[j].in_handler; + (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = fields[j].in_handler_priv; + } + } + if (!found) + { + /* if a device isn't listed, the BYPASS register should be selected */ + if (!jtag_get_device(i)->bypass) + { + ERROR("BUG: no scan data for a device not in BYPASS"); + exit(-1); + } + + /* program the scan field to 1 bit length, and ignore it's value */ + (*last_cmd)->cmd.scan->fields[field_count].num_bits = 1; + (*last_cmd)->cmd.scan->fields[field_count].out_value = NULL; + (*last_cmd)->cmd.scan->fields[field_count].out_mask = NULL; + (*last_cmd)->cmd.scan->fields[field_count].in_value = NULL; + (*last_cmd)->cmd.scan->fields[field_count].in_check_value = NULL; + (*last_cmd)->cmd.scan->fields[field_count].in_check_mask = NULL; + (*last_cmd)->cmd.scan->fields[field_count].in_handler = NULL; + (*last_cmd)->cmd.scan->fields[field_count++].in_handler_priv = NULL; + } + else + { + /* if a device is listed, the BYPASS register must not be selected */ + if (jtag_get_device(i)->bypass) + { + WARNING("scan data for a device in BYPASS"); + } + } + } + return ERROR_OK; +} + + int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state) -{ - int i; - jtag_command_t **last_cmd = jtag_get_last_command_p(); - - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - return ERROR_JTAG_TRST_ASSERTED; - } - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->next = NULL; - (*last_cmd)->type = JTAG_SCAN; - - /* allocate memory for scan command */ - (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); - (*last_cmd)->cmd.scan->ir_scan = 0; - (*last_cmd)->cmd.scan->num_fields = num_fields; - (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t)); - (*last_cmd)->cmd.scan->end_state = state; - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_RELEASED); - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; - - for (i = 0; i < num_fields; i++) - { - int num_bits = fields[i].num_bits; - int num_bytes = CEIL(fields[i].num_bits, 8); - (*last_cmd)->cmd.scan->fields[i].device = fields[i].device; - (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits; - (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits); - (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value; - (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value; - (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask; - (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler; - (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv; - } - - return ERROR_OK; -} -int jtag_add_statemove(enum tap_state state) -{ - jtag_command_t **last_cmd = jtag_get_last_command_p(); - - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - return ERROR_JTAG_TRST_ASSERTED; - } - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->next = NULL; - (*last_cmd)->type = JTAG_STATEMOVE; - - (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t)); - (*last_cmd)->cmd.statemove->end_state = state; - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_RELEASED); - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; - - return ERROR_OK; -} - -int jtag_add_pathmove(int num_states, enum tap_state *path) -{ - jtag_command_t **last_cmd = jtag_get_last_command_p(); - int i; - - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - return ERROR_JTAG_TRST_ASSERTED; - } - - /* the last state has to be a stable state */ - if (tap_move_map[path[num_states - 1]] == -1) - { - ERROR("TAP path doesn't finish in a stable state"); - return ERROR_JTAG_NOT_IMPLEMENTED; - } - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->next = NULL; - (*last_cmd)->type = JTAG_PATHMOVE; - - (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t)); - (*last_cmd)->cmd.pathmove->num_states = num_states; - (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states); - - for (i = 0; i < num_states; i++) - (*last_cmd)->cmd.pathmove->path[i] = path[i]; - - if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_RELEASED); - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = path[num_states - 1]; - - return ERROR_OK; -} - -int jtag_add_runtest(int num_cycles, enum tap_state state) -{ - jtag_command_t **last_cmd = jtag_get_last_command_p(); - - if (jtag_trst == 1) - { - WARNING("JTAG command queued, while TRST is low (TAP in reset)"); - return ERROR_JTAG_TRST_ASSERTED; - } - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_RUNTEST; - - (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t)); - (*last_cmd)->cmd.runtest->num_cycles = num_cycles; - (*last_cmd)->cmd.runtest->end_state = state; - - if (state != -1) - cmd_queue_end_state = state; - - if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_RELEASED); - - if (cmd_queue_end_state == TAP_TLR) - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - - cmd_queue_cur_state = cmd_queue_end_state; - - return ERROR_OK; -} - -int jtag_add_reset(int req_trst, int req_srst) -{ - int trst_with_tms = 0; - - jtag_command_t **last_cmd = jtag_get_last_command_p(); - - if (req_trst == -1) - req_trst = jtag_trst; - - if (req_srst == -1) - req_srst = jtag_srst; - - /* Make sure that jtag_reset_config allows the requested reset */ - /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */ - if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0)) - return ERROR_JTAG_RESET_WOULD_ASSERT_TRST; - - /* if TRST pulls SRST, we reset with TAP T-L-R */ - if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0)) - { - req_trst = 0; - trst_with_tms = 1; - } - - if (req_srst && !(jtag_reset_config & RESET_HAS_SRST)) - { - ERROR("requested nSRST assertion, but the current configuration doesn't support this"); - return ERROR_JTAG_RESET_CANT_SRST; - } - - if (req_trst && !(jtag_reset_config & RESET_HAS_TRST)) - { - req_trst = 0; - trst_with_tms = 1; - } - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_RESET; - - (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t)); - (*last_cmd)->cmd.reset->trst = req_trst; - (*last_cmd)->cmd.reset->srst = req_srst; - - jtag_trst = req_trst; - jtag_srst = req_srst; - - if (jtag_srst) - { - jtag_call_event_callbacks(JTAG_SRST_ASSERTED); - } - else - { - jtag_call_event_callbacks(JTAG_SRST_RELEASED); - if (jtag_nsrst_delay) - jtag_add_sleep(jtag_nsrst_delay * 1000); - } - - if (trst_with_tms) - { - last_cmd = &((*last_cmd)->next); - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_STATEMOVE; - - (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t)); - (*last_cmd)->cmd.statemove->end_state = TAP_TLR; - - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - cmd_queue_cur_state = TAP_TLR; - cmd_queue_end_state = TAP_TLR; - - return ERROR_OK; - } - else - { - if (jtag_trst) - { - /* we just asserted nTRST, so we're now in Test-Logic-Reset, - * and inform possible listeners about this - */ - cmd_queue_cur_state = TAP_TLR; - jtag_call_event_callbacks(JTAG_TRST_ASSERTED); - } - else - { - /* the nTRST line got deasserted, so we're still in Test-Logic-Reset, - * but we might want to add a delay to give the TAP time to settle - */ - if (jtag_ntrst_delay) - jtag_add_sleep(jtag_ntrst_delay * 1000); - } - } - - return ERROR_OK; -} - -int jtag_add_end_state(enum tap_state state) -{ - jtag_command_t **last_cmd = jtag_get_last_command_p(); - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_END_STATE; - - (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t)); - (*last_cmd)->cmd.end_state->end_state = state; - - if (state != -1) - cmd_queue_end_state = state; - - return ERROR_OK; -} - -int jtag_add_sleep(u32 us) -{ - jtag_command_t **last_cmd = jtag_get_last_command_p(); - - /* allocate memory for a new list member */ - *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); - (*last_cmd)->next = NULL; - last_comand_pointer = &((*last_cmd)->next); - (*last_cmd)->type = JTAG_SLEEP; - - (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t)); - (*last_cmd)->cmd.sleep->us = us; - - return ERROR_OK; -} - -int jtag_scan_size(scan_command_t *cmd) -{ - int bit_count = 0; - int i; - - /* count bits in scan command */ - for (i = 0; i < cmd->num_fields; i++) - { - bit_count += cmd->fields[i].num_bits; - } - - return bit_count; -} - -int jtag_build_buffer(scan_command_t *cmd, u8 **buffer) -{ - int bit_count = 0; - int i; - - bit_count = jtag_scan_size(cmd); - *buffer = malloc(CEIL(bit_count, 8)); - - bit_count = 0; - - for (i = 0; i < cmd->num_fields; i++) - { - if (cmd->fields[i].out_value) - { -#ifdef _DEBUG_JTAG_IO_ - char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16); -#endif - buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits); -#ifdef _DEBUG_JTAG_IO_ - DEBUG("fields[%i].out_value: 0x%s", i, char_buf); - free(char_buf); -#endif - } - - bit_count += cmd->fields[i].num_bits; - } - - return bit_count; - -} - -int jtag_read_buffer(u8 *buffer, scan_command_t *cmd) -{ - int i; - int bit_count = 0; - int retval; - - /* we return ERROR_OK, unless a check fails, or a handler reports a problem */ - retval = ERROR_OK; - - for (i = 0; i < cmd->num_fields; i++) - { - /* if neither in_value nor in_handler - * are specified we don't have to examine this field - */ - if (cmd->fields[i].in_value || cmd->fields[i].in_handler) - { - int num_bits = cmd->fields[i].num_bits; - u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits); - -#ifdef _DEBUG_JTAG_IO_ - char *char_buf; - - char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16); - DEBUG("fields[%i].in_value: 0x%s", i, char_buf); - free(char_buf); -#endif - - if (cmd->fields[i].in_value) - { - buf_cpy(captured, cmd->fields[i].in_value, num_bits); - - if (cmd->fields[i].in_handler) - { - if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK) - { - WARNING("in_handler reported a failed check"); - retval = ERROR_JTAG_QUEUE_FAILED; - } - } - } - - /* no in_value specified, but a handler takes care of the scanned data */ - if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value)) - { - if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK) - { - /* We're going to call the error:handler later, but if the in_handler - * reported an error we report this failure upstream - */ - WARNING("in_handler reported a failed check"); - retval = ERROR_JTAG_QUEUE_FAILED; - } - } - - free(captured); - } - bit_count += cmd->fields[i].num_bits; - } - - return retval; -} - -int jtag_check_value(u8 *captured, void *priv, scan_field_t *field) -{ - int retval = ERROR_OK; - int num_bits = field->num_bits; - - int compare_failed = 0; - - if (field->in_check_mask) - compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits); - else - compare_failed = buf_cmp(captured, field->in_check_value, num_bits); - - if (compare_failed) - { - /* An error handler could have caught the failing check - * only report a problem when there wasn't a handler, or if the handler - * acknowledged the error - */ - if (compare_failed) - { - char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16); - char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16); - - if (field->in_check_mask) - { - char *in_check_mask_char; - in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16); - WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char); - free(in_check_mask_char); - } - else - { - WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char); - } - - free(captured_char); - free(in_check_value_char); - - retval = ERROR_JTAG_QUEUE_FAILED; - } - - } - return retval; -} - -/* - set up checking of this field using the in_handler. The values passed in must be valid until - after jtag_execute() has completed. - */ -void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler) -{ - if (value) - field->in_handler = jtag_check_value; - else - field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */ - field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */ - field->in_check_value = value; - field->in_check_mask = mask; -} - -enum scan_type jtag_scan_type(scan_command_t *cmd) -{ - int i; - int type = 0; - - for (i = 0; i < cmd->num_fields; i++) - { - if (cmd->fields[i].in_value || cmd->fields[i].in_handler) - type |= SCAN_IN; - if (cmd->fields[i].out_value) - type |= SCAN_OUT; - } - - return type; -} - -int jtag_execute_queue(void) -{ - int retval; - - retval = jtag->execute_queue(); - - cmd_queue_free(); - - jtag_command_queue = NULL; - last_comand_pointer = &jtag_command_queue; - - return retval; -} - -int jtag_reset_callback(enum jtag_event event, void *priv) -{ - jtag_device_t *device = priv; - - DEBUG("-"); - - if (event == JTAG_TRST_ASSERTED) - { - buf_set_ones(device->cur_instr, device->ir_length); - device->bypass = 1; - } - - return ERROR_OK; -} - -void jtag_sleep(u32 us) -{ - usleep(us); -} - -/* Try to examine chain layout according to IEEE 1149.1 §12 - */ -int jtag_examine_chain() -{ - jtag_device_t *device = jtag_devices; - scan_field_t field; - u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4]; - int i; - int bit_count; - int device_count = 0; - u8 zero_check = 0x0; - u8 one_check = 0xff; - - field.device = 0; - field.num_bits = sizeof(idcode_buffer) * 8; - field.out_value = idcode_buffer; - field.out_mask = NULL; - field.in_value = idcode_buffer; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = NULL; - field.in_handler_priv = NULL; - - for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++) - { - buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF); - } - - jtag_add_plain_dr_scan(1, &field, TAP_TLR); - jtag_execute_queue(); - - for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++) - { - zero_check |= idcode_buffer[i]; - one_check &= idcode_buffer[i]; - } - - /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */ - if ((zero_check == 0x00) || (one_check == 0xff)) - { - ERROR("JTAG communication failure, check connection, JTAG interface, target power etc."); - return ERROR_JTAG_INIT_FAILED; - } - - for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;) - { - u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32); - if ((idcode & 1) == 0) - { - /* LSB must not be 0, this indicates a device in bypass */ - device_count++; - - bit_count += 1; - } - else - { - u32 manufacturer; - u32 part; - u32 version; - - if (idcode == 0x000000FF) - { - /* End of chain (invalid manufacturer ID) */ - break; - } - - if (device) - { - device->idcode = idcode; - device = device->next; - } - device_count++; - - manufacturer = (idcode & 0xffe) >> 1; - part = (idcode & 0xffff000) >> 12; - version = (idcode & 0xf0000000) >> 28; - - INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)", - idcode, manufacturer, part, version); - - bit_count += 32; - } - } - - /* see if number of discovered devices matches configuration */ - if (device_count != jtag_num_devices) - { - ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)", - device_count, jtag_num_devices); - ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)"); - return ERROR_JTAG_INIT_FAILED; - } - - return ERROR_OK; -} - -int jtag_validate_chain() -{ - jtag_device_t *device = jtag_devices; - int total_ir_length = 0; - u8 *ir_test = NULL; - scan_field_t field; - int chain_pos = 0; - - while (device) - { - total_ir_length += device->ir_length; - device = device->next; - } - - total_ir_length += 2; - ir_test = malloc(CEIL(total_ir_length, 8)); - buf_set_ones(ir_test, total_ir_length); - - field.device = 0; - field.num_bits = total_ir_length; - field.out_value = ir_test; - field.out_mask = NULL; - field.in_value = ir_test; - field.in_check_value = NULL; - field.in_check_mask = NULL; - field.in_handler = NULL; - field.in_handler_priv = NULL; - - jtag_add_plain_ir_scan(1, &field, TAP_TLR); - jtag_execute_queue(); - - device = jtag_devices; - while (device) - { - if (buf_get_u32(ir_test, chain_pos, 2) != 0x1) - { - char *cbuf = buf_to_str(ir_test, total_ir_length, 16); - ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf); - free(cbuf); - free(ir_test); - return ERROR_JTAG_INIT_FAILED; - } - chain_pos += device->ir_length; - device = device->next; - } - - if (buf_get_u32(ir_test, chain_pos, 2) != 0x3) - { - char *cbuf = buf_to_str(ir_test, total_ir_length, 16); - ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf); - free(cbuf); - free(ir_test); - return ERROR_JTAG_INIT_FAILED; - } - - free(ir_test); - - return ERROR_OK; -} - -int jtag_register_commands(struct command_context_s *cmd_ctx) -{ - register_command(cmd_ctx, NULL, "interface", handle_interface_command, - COMMAND_CONFIG, NULL); - register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command, - COMMAND_ANY, "set jtag speed (if supported) "); - 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, - COMMAND_CONFIG, NULL); - register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command, - COMMAND_CONFIG, NULL); - register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command, - COMMAND_CONFIG, NULL); - - register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command, - COMMAND_EXEC, "print current scan chain configuration"); - - register_command(cmd_ctx, NULL, "endstate", handle_endstate_command, - COMMAND_EXEC, "finish JTAG operations in "); - 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, "statemove", handle_statemove_command, - COMMAND_EXEC, "move to current endstate or [tap_state]"); - register_command(cmd_ctx, NULL, "irscan", handle_irscan_command, - COMMAND_EXEC, "execute IR scan [dev2] [instr2] ..."); - register_command(cmd_ctx, NULL, "drscan", handle_drscan_command, - COMMAND_EXEC, "execute DR scan [dev2] [var2] ..."); - - register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command, - COMMAND_ANY, "verify value captured during Capture-IR "); - return ERROR_OK; -} - -int jtag_init(struct command_context_s *cmd_ctx) -{ - int i, validate_tries = 0; - - DEBUG("-"); - - if (jtag_speed == -1) - jtag_speed = 0; - - if (jtag_interface && (jtag_interface[0] != 0)) - /* configuration var 'jtag_interface' is set, and not empty */ - for (i = 0; jtag_interfaces[i]; i++) - { - if (strcmp(jtag_interface, jtag_interfaces[i]->name) == 0) - { - jtag_device_t *device; - device = jtag_devices; - - if (jtag_interfaces[i]->init() != ERROR_OK) - return ERROR_JTAG_INIT_FAILED; - jtag = jtag_interfaces[i]; - - jtag_ir_scan_size = 0; - jtag_num_devices = 0; - while (device != NULL) - { - jtag_ir_scan_size += device->ir_length; - jtag_num_devices++; - device = device->next; - } - - jtag_add_statemove(TAP_TLR); - jtag_execute_queue(); - - /* examine chain first, as this could discover the real chain layout */ - if (jtag_examine_chain() != ERROR_OK) - { - ERROR("trying to validate configured JTAG chain anyway..."); - } - - while (jtag_validate_chain() != ERROR_OK) - { - validate_tries++; - if (validate_tries > 5) - { - ERROR("Could not validate JTAG chain, exit"); - jtag = NULL; - return ERROR_JTAG_INVALID_INTERFACE; - } - usleep(10000); - } - - return ERROR_OK; - } - } - - /* no valid interface was found (i.e. the configuration option, - * didn't match one of the compiled-in interfaces - */ - ERROR("No valid jtag interface found (%s)", jtag_interface); - ERROR("compiled-in jtag interfaces:"); - for (i = 0; jtag_interfaces[i]; i++) - { - ERROR("%i: %s", i, jtag_interfaces[i]->name); - } - - jtag = NULL; - return ERROR_JTAG_INVALID_INTERFACE; -} - -int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - int i; - - /* only if the configuration var isn't overwritten from cmdline */ - if (!jtag_interface) - { - if (args[0] && (args[0][0] != 0)) - { - for (i=0; jtag_interfaces[i]; i++) - { - if (strcmp(args[0], jtag_interfaces[i]->name) == 0) - { - if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK) - exit(-1); - - jtag_interface = jtag_interfaces[i]->name; - - return ERROR_OK; - } - } - } - - /* remember the requested interface name, so we can complain about it later */ - jtag_interface = strdup(args[0]); - DEBUG("'interface' command didn't specify a valid interface"); - } - - return ERROR_OK; -} - -int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - jtag_device_t **last_device_p = &jtag_devices; - - if (*last_device_p) - { - while ((*last_device_p)->next) - last_device_p = &((*last_device_p)->next); - last_device_p = &((*last_device_p)->next); - } - - if (argc < 3) - return ERROR_OK; - - *last_device_p = malloc(sizeof(jtag_device_t)); - (*last_device_p)->ir_length = strtoul(args[0], NULL, 0); - - (*last_device_p)->expected = malloc((*last_device_p)->ir_length); - buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0)); - (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length); - buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0)); - - (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length); - (*last_device_p)->bypass = 1; - buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length); - - (*last_device_p)->next = NULL; - - jtag_register_event_callback(jtag_reset_callback, (*last_device_p)); - - jtag_num_devices++; - - return ERROR_OK; -} - -int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - jtag_device_t *device = jtag_devices; - int device_count = 0; - - while (device) - { - u32 expected, expected_mask, cur_instr; - expected = buf_get_u32(device->expected, 0, device->ir_length); - expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length); - cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length); - command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr); - device = device->next; - device_count++; - } - - return ERROR_OK; -} - -int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc >= 1) - { - if (strcmp(args[0], "none") == 0) - jtag_reset_config = RESET_NONE; - else if (strcmp(args[0], "trst_only") == 0) - jtag_reset_config = RESET_HAS_TRST; - else if (strcmp(args[0], "srst_only") == 0) - jtag_reset_config = RESET_HAS_SRST; - else if (strcmp(args[0], "trst_and_srst") == 0) - jtag_reset_config = RESET_TRST_AND_SRST; - else - { - ERROR("invalid reset_config argument, defaulting to none"); - jtag_reset_config = RESET_NONE; - return ERROR_INVALID_ARGUMENTS; - } - } - - if (argc >= 2) - { - if (strcmp(args[1], "srst_pulls_trst") == 0) - jtag_reset_config |= RESET_SRST_PULLS_TRST; - else if (strcmp(args[1], "trst_pulls_srst") == 0) - jtag_reset_config |= RESET_TRST_PULLS_SRST; - else if (strcmp(args[1], "combined") == 0) - jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST; - else if (strcmp(args[1], "separate") == 0) - jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST); - else - { - ERROR("invalid reset_config argument, defaulting to none"); - jtag_reset_config = RESET_NONE; - return ERROR_INVALID_ARGUMENTS; - } - } - - if (argc >= 3) - { - if (strcmp(args[2], "trst_open_drain") == 0) - jtag_reset_config |= RESET_TRST_OPEN_DRAIN; - else if (strcmp(args[2], "trst_push_pull") == 0) - jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN; - else - { - ERROR("invalid reset_config argument, defaulting to none"); - jtag_reset_config = RESET_NONE; - return ERROR_INVALID_ARGUMENTS; - } - } - - if (argc >= 4) - { - if (strcmp(args[3], "srst_push_pull") == 0) - jtag_reset_config |= RESET_SRST_PUSH_PULL; - else if (strcmp(args[3], "srst_open_drain") == 0) - jtag_reset_config &= ~RESET_SRST_PUSH_PULL; - else - { - ERROR("invalid reset_config argument, defaulting to none"); - jtag_reset_config = RESET_NONE; - return ERROR_INVALID_ARGUMENTS; - } - } - - return ERROR_OK; -} - -int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc < 1) - { - ERROR("jtag_nsrst_delay command takes one required argument"); - exit(-1); - } - else - { - jtag_nsrst_delay = strtoul(args[0], NULL, 0); - } - - return ERROR_OK; -} - -int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc < 1) - { - ERROR("jtag_ntrst_delay command takes one required argument"); - exit(-1); - } - else - { - jtag_ntrst_delay = strtoul(args[0], NULL, 0); - } - - return ERROR_OK; -} - -int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc == 0) - command_print(cmd_ctx, "jtag_speed: %i", jtag_speed); - - if (argc > 0) - { - /* this command can be called during CONFIG, - * in which case jtag isn't initialized */ - if (jtag) - jtag->speed(strtoul(args[0], NULL, 0)); - else - jtag_speed = strtoul(args[0], NULL, 0); - } - - return ERROR_OK; -} - -int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - enum tap_state state; - - if (argc < 1) - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - else - { - for (state = 0; state < 16; state++) - { - if (strcmp(args[0], tap_state_strings[state]) == 0) - { - jtag_add_end_state(state); - jtag_execute_queue(); - } - } - } - command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]); - - return ERROR_OK; -} - -int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - int trst = -1; - int srst = -1; - int retval; - - if (argc < 1) - { - return ERROR_COMMAND_SYNTAX_ERROR; - - } - - if (args[0][0] == '1') - trst = 1; - else if (args[0][0] == '0') - trst = 0; - else - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - - if (args[1][0] == '1') - srst = 1; - else if (args[1][0] == '0') - srst = 0; - else - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - - if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK) - { - switch (retval) - { - case ERROR_JTAG_RESET_WOULD_ASSERT_TRST: - command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]); - break; - case ERROR_JTAG_RESET_CANT_SRST: - command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it"); - break; - default: - command_print(cmd_ctx, "unknown error"); - } - } - jtag_execute_queue(); - - return ERROR_OK; -} - -int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc < 1) - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - - jtag_add_runtest(strtol(args[0], NULL, 0), -1); - jtag_execute_queue(); - - return ERROR_OK; - -} - -int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - enum tap_state state; - - state = -1; - if (argc == 1) - { - for (state = 0; state < 16; state++) - { - if (strcmp(args[0], tap_state_strings[state]) == 0) - { - break; - } - } - } - - jtag_add_statemove(state); - jtag_execute_queue(); - - return ERROR_OK; - -} - -int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - int i; - scan_field_t *fields; - - if ((argc < 2) || (argc % 2)) - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - - fields = malloc(sizeof(scan_field_t) * argc / 2); - - for (i = 0; i < argc / 2; i++) - { - int device = strtoul(args[i*2], NULL, 0); - int field_size = jtag_get_device(device)->ir_length; - fields[i].device = device; - fields[i].out_value = malloc(CEIL(field_size, 8)); - buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0)); - fields[i].out_mask = NULL; - fields[i].in_value = NULL; - fields[i].in_check_mask = NULL; - fields[i].in_handler = NULL; - fields[i].in_handler_priv = NULL; - } - - jtag_add_ir_scan(argc / 2, fields, -1); - jtag_execute_queue(); - - for (i = 0; i < argc / 2; i++) - free(fields[i].out_value); - - free (fields); - - return ERROR_OK; -} - -int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - scan_field_t *fields; - int num_fields = 0; - int field_count = 0; - var_t *var; - int i, j; - - if ((argc < 2) || (argc % 2)) - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - - for (i = 0; i < argc; i+=2) - { - var = get_var_by_namenum(args[i+1]); - if (var) - { - num_fields += var->num_fields; - } - else - { - command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]); - return ERROR_OK; - } - } - - fields = malloc(sizeof(scan_field_t) * num_fields); - - for (i = 0; i < argc; i+=2) - { - var = get_var_by_namenum(args[i+1]); - - for (j = 0; j < var->num_fields; j++) - { - fields[field_count].device = strtol(args[i], NULL, 0); - fields[field_count].num_bits = var->fields[j].num_bits; - fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8)); - buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value); - fields[field_count].out_mask = NULL; - fields[field_count].in_value = fields[field_count].out_value; - fields[field_count].in_check_mask = NULL; - fields[field_count].in_check_value = NULL; - fields[field_count].in_handler = field_le_to_host; - fields[field_count++].in_handler_priv = &(var->fields[j]); - } - } - - jtag_add_dr_scan(num_fields, fields, -1); - jtag_execute_queue(); - - for (i = 0; i < argc / 2; i++) - free(fields[i].out_value); - - free(fields); - - return ERROR_OK; -} - -int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) -{ - if (argc == 1) - { - if (strcmp(args[0], "enable") == 0) - { - jtag_verify_capture_ir = 1; - } - else if (strcmp(args[0], "disable") == 0) - { - jtag_verify_capture_ir = 0; - } else - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - } else if (argc != 0) - { - return ERROR_COMMAND_SYNTAX_ERROR; - } - - command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled"); - - return ERROR_OK; -} +{ + int i; + jtag_command_t **last_cmd = jtag_get_last_command_p(); + + if (jtag_trst == 1) + { + WARNING("JTAG command queued, while TRST is low (TAP in reset)"); + return ERROR_JTAG_TRST_ASSERTED; + } + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->next = NULL; + (*last_cmd)->type = JTAG_SCAN; + + /* allocate memory for scan command */ + (*last_cmd)->cmd.scan = cmd_queue_alloc(sizeof(scan_command_t)); + (*last_cmd)->cmd.scan->ir_scan = 0; + (*last_cmd)->cmd.scan->num_fields = num_fields; + (*last_cmd)->cmd.scan->fields = cmd_queue_alloc(num_fields * sizeof(scan_field_t)); + (*last_cmd)->cmd.scan->end_state = state; + + if (state != -1) + cmd_queue_end_state = state; + + if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_RELEASED); + + if (cmd_queue_end_state == TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + + cmd_queue_cur_state = cmd_queue_end_state; + + for (i = 0; i < num_fields; i++) + { + int num_bits = fields[i].num_bits; + int num_bytes = CEIL(fields[i].num_bits, 8); + (*last_cmd)->cmd.scan->fields[i].device = fields[i].device; + (*last_cmd)->cmd.scan->fields[i].num_bits = num_bits; + (*last_cmd)->cmd.scan->fields[i].out_value = buf_cpy(fields[i].out_value, cmd_queue_alloc(num_bytes), num_bits); + (*last_cmd)->cmd.scan->fields[i].out_mask = buf_cpy(fields[i].out_mask, cmd_queue_alloc(num_bytes), num_bits); + (*last_cmd)->cmd.scan->fields[i].in_value = fields[i].in_value; + (*last_cmd)->cmd.scan->fields[i].in_check_value = fields[i].in_check_value; + (*last_cmd)->cmd.scan->fields[i].in_check_mask = fields[i].in_check_mask; + (*last_cmd)->cmd.scan->fields[i].in_handler = fields[i].in_handler; + (*last_cmd)->cmd.scan->fields[i].in_handler_priv = fields[i].in_handler_priv; + } + + return ERROR_OK; +} +int jtag_add_statemove(enum tap_state state) +{ + jtag_command_t **last_cmd = jtag_get_last_command_p(); + + if (jtag_trst == 1) + { + WARNING("JTAG command queued, while TRST is low (TAP in reset)"); + return ERROR_JTAG_TRST_ASSERTED; + } + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->next = NULL; + (*last_cmd)->type = JTAG_STATEMOVE; + + (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t)); + (*last_cmd)->cmd.statemove->end_state = state; + + if (state != -1) + cmd_queue_end_state = state; + + if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_RELEASED); + + if (cmd_queue_end_state == TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + + cmd_queue_cur_state = cmd_queue_end_state; + + return ERROR_OK; +} + +int jtag_add_pathmove(int num_states, enum tap_state *path) +{ + jtag_command_t **last_cmd = jtag_get_last_command_p(); + int i; + + if (jtag_trst == 1) + { + WARNING("JTAG command queued, while TRST is low (TAP in reset)"); + return ERROR_JTAG_TRST_ASSERTED; + } + + /* the last state has to be a stable state */ + if (tap_move_map[path[num_states - 1]] == -1) + { + ERROR("TAP path doesn't finish in a stable state"); + return ERROR_JTAG_NOT_IMPLEMENTED; + } + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->next = NULL; + (*last_cmd)->type = JTAG_PATHMOVE; + + (*last_cmd)->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t)); + (*last_cmd)->cmd.pathmove->num_states = num_states; + (*last_cmd)->cmd.pathmove->path = cmd_queue_alloc(sizeof(enum tap_state) * num_states); + + for (i = 0; i < num_states; i++) + (*last_cmd)->cmd.pathmove->path[i] = path[i]; + + if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_RELEASED); + + if (cmd_queue_end_state == TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + + cmd_queue_cur_state = path[num_states - 1]; + + return ERROR_OK; +} + +int jtag_add_runtest(int num_cycles, enum tap_state state) +{ + jtag_command_t **last_cmd = jtag_get_last_command_p(); + + if (jtag_trst == 1) + { + WARNING("JTAG command queued, while TRST is low (TAP in reset)"); + return ERROR_JTAG_TRST_ASSERTED; + } + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + (*last_cmd)->next = NULL; + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->type = JTAG_RUNTEST; + + (*last_cmd)->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t)); + (*last_cmd)->cmd.runtest->num_cycles = num_cycles; + (*last_cmd)->cmd.runtest->end_state = state; + + if (state != -1) + cmd_queue_end_state = state; + + if (cmd_queue_cur_state == TAP_TLR && cmd_queue_end_state != TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_RELEASED); + + if (cmd_queue_end_state == TAP_TLR) + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + + cmd_queue_cur_state = cmd_queue_end_state; + + return ERROR_OK; +} + +int jtag_add_reset(int req_trst, int req_srst) +{ + int trst_with_tms = 0; + + jtag_command_t **last_cmd = jtag_get_last_command_p(); + + if (req_trst == -1) + req_trst = jtag_trst; + + if (req_srst == -1) + req_srst = jtag_srst; + + /* Make sure that jtag_reset_config allows the requested reset */ + /* if SRST pulls TRST, we can't fulfill srst == 1 with trst == 0 */ + if (((jtag_reset_config & RESET_SRST_PULLS_TRST) && (req_srst == 1)) && (req_trst == 0)) + return ERROR_JTAG_RESET_WOULD_ASSERT_TRST; + + /* if TRST pulls SRST, we reset with TAP T-L-R */ + if (((jtag_reset_config & RESET_TRST_PULLS_SRST) && (req_trst == 1)) && (req_srst == 0)) + { + req_trst = 0; + trst_with_tms = 1; + } + + if (req_srst && !(jtag_reset_config & RESET_HAS_SRST)) + { + ERROR("requested nSRST assertion, but the current configuration doesn't support this"); + return ERROR_JTAG_RESET_CANT_SRST; + } + + if (req_trst && !(jtag_reset_config & RESET_HAS_TRST)) + { + req_trst = 0; + trst_with_tms = 1; + } + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + (*last_cmd)->next = NULL; + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->type = JTAG_RESET; + + (*last_cmd)->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t)); + (*last_cmd)->cmd.reset->trst = req_trst; + (*last_cmd)->cmd.reset->srst = req_srst; + + jtag_trst = req_trst; + jtag_srst = req_srst; + + if (jtag_srst) + { + jtag_call_event_callbacks(JTAG_SRST_ASSERTED); + } + else + { + jtag_call_event_callbacks(JTAG_SRST_RELEASED); + if (jtag_nsrst_delay) + jtag_add_sleep(jtag_nsrst_delay * 1000); + } + + if (trst_with_tms) + { + last_cmd = &((*last_cmd)->next); + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + (*last_cmd)->next = NULL; + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->type = JTAG_STATEMOVE; + + (*last_cmd)->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t)); + (*last_cmd)->cmd.statemove->end_state = TAP_TLR; + + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + cmd_queue_cur_state = TAP_TLR; + cmd_queue_end_state = TAP_TLR; + + return ERROR_OK; + } + else + { + if (jtag_trst) + { + /* we just asserted nTRST, so we're now in Test-Logic-Reset, + * and inform possible listeners about this + */ + cmd_queue_cur_state = TAP_TLR; + jtag_call_event_callbacks(JTAG_TRST_ASSERTED); + } + else + { + /* the nTRST line got deasserted, so we're still in Test-Logic-Reset, + * but we might want to add a delay to give the TAP time to settle + */ + if (jtag_ntrst_delay) + jtag_add_sleep(jtag_ntrst_delay * 1000); + } + } + + return ERROR_OK; +} + +int jtag_add_end_state(enum tap_state state) +{ + jtag_command_t **last_cmd = jtag_get_last_command_p(); + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + (*last_cmd)->next = NULL; + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->type = JTAG_END_STATE; + + (*last_cmd)->cmd.end_state = cmd_queue_alloc(sizeof(end_state_command_t)); + (*last_cmd)->cmd.end_state->end_state = state; + + if (state != -1) + cmd_queue_end_state = state; + + return ERROR_OK; +} + +int jtag_add_sleep(u32 us) +{ + jtag_command_t **last_cmd = jtag_get_last_command_p(); + + /* allocate memory for a new list member */ + *last_cmd = cmd_queue_alloc(sizeof(jtag_command_t)); + (*last_cmd)->next = NULL; + last_comand_pointer = &((*last_cmd)->next); + (*last_cmd)->type = JTAG_SLEEP; + + (*last_cmd)->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t)); + (*last_cmd)->cmd.sleep->us = us; + + return ERROR_OK; +} + +int jtag_scan_size(scan_command_t *cmd) +{ + int bit_count = 0; + int i; + + /* count bits in scan command */ + for (i = 0; i < cmd->num_fields; i++) + { + bit_count += cmd->fields[i].num_bits; + } + + return bit_count; +} + +int jtag_build_buffer(scan_command_t *cmd, u8 **buffer) +{ + int bit_count = 0; + int i; + + bit_count = jtag_scan_size(cmd); + *buffer = malloc(CEIL(bit_count, 8)); + + bit_count = 0; + + for (i = 0; i < cmd->num_fields; i++) + { + if (cmd->fields[i].out_value) + { +#ifdef _DEBUG_JTAG_IO_ + char* char_buf = buf_to_str(cmd->fields[i].out_value, (cmd->fields[i].num_bits > 64) ? 64 : cmd->fields[i].num_bits, 16); +#endif + buf_set_buf(cmd->fields[i].out_value, 0, *buffer, bit_count, cmd->fields[i].num_bits); +#ifdef _DEBUG_JTAG_IO_ + DEBUG("fields[%i].out_value: 0x%s", i, char_buf); + free(char_buf); +#endif + } + + bit_count += cmd->fields[i].num_bits; + } + + return bit_count; + +} + +int jtag_read_buffer(u8 *buffer, scan_command_t *cmd) +{ + int i; + int bit_count = 0; + int retval; + + /* we return ERROR_OK, unless a check fails, or a handler reports a problem */ + retval = ERROR_OK; + + for (i = 0; i < cmd->num_fields; i++) + { + /* if neither in_value nor in_handler + * are specified we don't have to examine this field + */ + if (cmd->fields[i].in_value || cmd->fields[i].in_handler) + { + int num_bits = cmd->fields[i].num_bits; + u8 *captured = buf_set_buf(buffer, bit_count, malloc(CEIL(num_bits, 8)), 0, num_bits); + +#ifdef _DEBUG_JTAG_IO_ + char *char_buf; + + char_buf = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16); + DEBUG("fields[%i].in_value: 0x%s", i, char_buf); + free(char_buf); +#endif + + if (cmd->fields[i].in_value) + { + buf_cpy(captured, cmd->fields[i].in_value, num_bits); + + if (cmd->fields[i].in_handler) + { + if (cmd->fields[i].in_handler(cmd->fields[i].in_value, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK) + { + WARNING("in_handler reported a failed check"); + retval = ERROR_JTAG_QUEUE_FAILED; + } + } + } + + /* no in_value specified, but a handler takes care of the scanned data */ + if (cmd->fields[i].in_handler && (!cmd->fields[i].in_value)) + { + if (cmd->fields[i].in_handler(captured, cmd->fields[i].in_handler_priv, cmd->fields+i) != ERROR_OK) + { + /* We're going to call the error:handler later, but if the in_handler + * reported an error we report this failure upstream + */ + WARNING("in_handler reported a failed check"); + retval = ERROR_JTAG_QUEUE_FAILED; + } + } + + free(captured); + } + bit_count += cmd->fields[i].num_bits; + } + + return retval; +} + +int jtag_check_value(u8 *captured, void *priv, scan_field_t *field) +{ + int retval = ERROR_OK; + int num_bits = field->num_bits; + + int compare_failed = 0; + + if (field->in_check_mask) + compare_failed = buf_cmp_mask(captured, field->in_check_value, field->in_check_mask, num_bits); + else + compare_failed = buf_cmp(captured, field->in_check_value, num_bits); + + if (compare_failed) + { + /* An error handler could have caught the failing check + * only report a problem when there wasn't a handler, or if the handler + * acknowledged the error + */ + if (compare_failed) + { + char *captured_char = buf_to_str(captured, (num_bits > 64) ? 64 : num_bits, 16); + char *in_check_value_char = buf_to_str(field->in_check_value, (num_bits > 64) ? 64 : num_bits, 16); + + if (field->in_check_mask) + { + char *in_check_mask_char; + in_check_mask_char = buf_to_str(field->in_check_mask, (num_bits > 64) ? 64 : num_bits, 16); + WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s check_mask: 0x%s", captured_char, in_check_value_char, in_check_mask_char); + free(in_check_mask_char); + } + else + { + WARNING("value captured during scan didn't pass the requested check: captured: 0x%s check_value: 0x%s", captured_char, in_check_value_char); + } + + free(captured_char); + free(in_check_value_char); + + retval = ERROR_JTAG_QUEUE_FAILED; + } + + } + return retval; +} + +/* + set up checking of this field using the in_handler. The values passed in must be valid until + after jtag_execute() has completed. + */ +void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler) +{ + if (value) + field->in_handler = jtag_check_value; + else + field->in_handler = NULL; /* No check, e.g. embeddedice uses value==NULL to indicate no check */ + field->in_handler_priv = NULL; /* this will be filled in at the invocation site to point to the field duplicate */ + field->in_check_value = value; + field->in_check_mask = mask; +} + +enum scan_type jtag_scan_type(scan_command_t *cmd) +{ + int i; + int type = 0; + + for (i = 0; i < cmd->num_fields; i++) + { + if (cmd->fields[i].in_value || cmd->fields[i].in_handler) + type |= SCAN_IN; + if (cmd->fields[i].out_value) + type |= SCAN_OUT; + } + + return type; +} + +int jtag_execute_queue(void) +{ + int retval; + + retval = jtag->execute_queue(); + + cmd_queue_free(); + + jtag_command_queue = NULL; + last_comand_pointer = &jtag_command_queue; + + return retval; +} + +int jtag_reset_callback(enum jtag_event event, void *priv) +{ + jtag_device_t *device = priv; + + DEBUG("-"); + + if (event == JTAG_TRST_ASSERTED) + { + buf_set_ones(device->cur_instr, device->ir_length); + device->bypass = 1; + } + + return ERROR_OK; +} + +void jtag_sleep(u32 us) +{ + usleep(us); +} + +/* Try to examine chain layout according to IEEE 1149.1 §12 + */ +int jtag_examine_chain() +{ + jtag_device_t *device = jtag_devices; + scan_field_t field; + u8 idcode_buffer[JTAG_MAX_CHAIN_SIZE * 4]; + int i; + int bit_count; + int device_count = 0; + u8 zero_check = 0x0; + u8 one_check = 0xff; + + field.device = 0; + field.num_bits = sizeof(idcode_buffer) * 8; + field.out_value = idcode_buffer; + field.out_mask = NULL; + field.in_value = idcode_buffer; + field.in_check_value = NULL; + field.in_check_mask = NULL; + field.in_handler = NULL; + field.in_handler_priv = NULL; + + for (i = 0; i < JTAG_MAX_CHAIN_SIZE; i++) + { + buf_set_u32(idcode_buffer, i * 32, 32, 0x000000FF); + } + + jtag_add_plain_dr_scan(1, &field, TAP_TLR); + jtag_execute_queue(); + + for (i = 0; i < JTAG_MAX_CHAIN_SIZE * 4; i++) + { + zero_check |= idcode_buffer[i]; + one_check &= idcode_buffer[i]; + } + + /* if there wasn't a single non-zero bit or if all bits were one, the scan isn't valid */ + if ((zero_check == 0x00) || (one_check == 0xff)) + { + ERROR("JTAG communication failure, check connection, JTAG interface, target power etc."); + return ERROR_JTAG_INIT_FAILED; + } + + for (bit_count = 0; bit_count < (JTAG_MAX_CHAIN_SIZE * 32) - 31;) + { + u32 idcode = buf_get_u32(idcode_buffer, bit_count, 32); + if ((idcode & 1) == 0) + { + /* LSB must not be 0, this indicates a device in bypass */ + device_count++; + + bit_count += 1; + } + else + { + u32 manufacturer; + u32 part; + u32 version; + + if (idcode == 0x000000FF) + { + /* End of chain (invalid manufacturer ID) */ + break; + } + + if (device) + { + device->idcode = idcode; + device = device->next; + } + device_count++; + + manufacturer = (idcode & 0xffe) >> 1; + part = (idcode & 0xffff000) >> 12; + version = (idcode & 0xf0000000) >> 28; + + INFO("JTAG device found: 0x%8.8x (Manufacturer: 0x%3.3x, Part: 0x%4.4x, Version: 0x%1.1x)", + idcode, manufacturer, part, version); + + bit_count += 32; + } + } + + /* see if number of discovered devices matches configuration */ + if (device_count != jtag_num_devices) + { + ERROR("number of discovered devices in JTAG chain (%i) doesn't match configuration (%i)", + device_count, jtag_num_devices); + ERROR("check the config file and ensure proper JTAG communication (connections, speed, ...)"); + return ERROR_JTAG_INIT_FAILED; + } + + return ERROR_OK; +} + +int jtag_validate_chain() +{ + jtag_device_t *device = jtag_devices; + int total_ir_length = 0; + u8 *ir_test = NULL; + scan_field_t field; + int chain_pos = 0; + + while (device) + { + total_ir_length += device->ir_length; + device = device->next; + } + + total_ir_length += 2; + ir_test = malloc(CEIL(total_ir_length, 8)); + buf_set_ones(ir_test, total_ir_length); + + field.device = 0; + field.num_bits = total_ir_length; + field.out_value = ir_test; + field.out_mask = NULL; + field.in_value = ir_test; + field.in_check_value = NULL; + field.in_check_mask = NULL; + field.in_handler = NULL; + field.in_handler_priv = NULL; + + jtag_add_plain_ir_scan(1, &field, TAP_TLR); + jtag_execute_queue(); + + device = jtag_devices; + while (device) + { + if (buf_get_u32(ir_test, chain_pos, 2) != 0x1) + { + char *cbuf = buf_to_str(ir_test, total_ir_length, 16); + ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf); + free(cbuf); + free(ir_test); + return ERROR_JTAG_INIT_FAILED; + } + chain_pos += device->ir_length; + device = device->next; + } + + if (buf_get_u32(ir_test, chain_pos, 2) != 0x3) + { + char *cbuf = buf_to_str(ir_test, total_ir_length, 16); + ERROR("Error validating JTAG scan chain, IR mismatch, scan returned 0x%s", cbuf); + free(cbuf); + free(ir_test); + return ERROR_JTAG_INIT_FAILED; + } + + free(ir_test); + + return ERROR_OK; +} + +int jtag_register_commands(struct command_context_s *cmd_ctx) +{ + register_command(cmd_ctx, NULL, "interface", handle_interface_command, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "jtag_speed", handle_jtag_speed_command, + COMMAND_ANY, "set jtag speed (if supported) "); + 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, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command, + COMMAND_CONFIG, NULL); + register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command, + COMMAND_CONFIG, NULL); + + register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command, + COMMAND_EXEC, "print current scan chain configuration"); + + register_command(cmd_ctx, NULL, "endstate", handle_endstate_command, + COMMAND_EXEC, "finish JTAG operations in "); + 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, "statemove", handle_statemove_command, + COMMAND_EXEC, "move to current endstate or [tap_state]"); + register_command(cmd_ctx, NULL, "irscan", handle_irscan_command, + COMMAND_EXEC, "execute IR scan [dev2] [instr2] ..."); + register_command(cmd_ctx, NULL, "drscan", handle_drscan_command, + COMMAND_EXEC, "execute DR scan [dev2] [var2] ..."); + + register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command, + COMMAND_ANY, "verify value captured during Capture-IR "); + return ERROR_OK; +} + +int jtag_interface_init(struct command_context_s *cmd_ctx) +{ + if (!jtag_interface) + { + /* nothing was previously specified by "interface" command */ + ERROR("JTAG interface has to be specified, see \"interface\" command"); + return ERROR_JTAG_INVALID_INTERFACE; + } + + if (jtag_interface->init() != ERROR_OK) + return ERROR_JTAG_INIT_FAILED; + + jtag = jtag_interface; + return ERROR_OK; +} + +int jtag_init(struct command_context_s *cmd_ctx) +{ + int i, validate_tries = 0; + jtag_device_t *device; + + DEBUG("-"); + + if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK) + return ERROR_JTAG_INIT_FAILED; + + device = jtag_devices; + jtag_ir_scan_size = 0; + jtag_num_devices = 0; + while (device != NULL) + { + jtag_ir_scan_size += device->ir_length; + jtag_num_devices++; + device = device->next; + } + + jtag_add_statemove(TAP_TLR); + jtag_execute_queue(); + + /* examine chain first, as this could discover the real chain layout */ + if (jtag_examine_chain() != ERROR_OK) + { + ERROR("trying to validate configured JTAG chain anyway..."); + } + + while (jtag_validate_chain() != ERROR_OK) + { + validate_tries++; + if (validate_tries > 5) + { + ERROR("Could not validate JTAG chain, exit"); + jtag = NULL; + return ERROR_JTAG_INVALID_INTERFACE; + } + usleep(10000); + } + + return ERROR_OK; +} + +int handle_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + int i; + + /* check whether the interface is already configured */ + if (jtag_interface) + { + WARNING("Interface already configured, ignoring"); + return ERROR_OK; + } + + /* interface name is a mandatory argument */ + if (argc < 1 || args[0][0] == '\0') + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + for (i=0; jtag_interfaces[i]; i++) + { + if (strcmp(args[0], jtag_interfaces[i]->name) == 0) + { + if (jtag_interfaces[i]->register_commands(cmd_ctx) != ERROR_OK) + exit(-1); + + jtag_interface = jtag_interfaces[i]; + return ERROR_OK; + } + } + + /* no valid interface was found (i.e. the configuration option, + * didn't match one of the compiled-in interfaces + */ + ERROR("No valid jtag interface found (%s)", args[0]); + ERROR("compiled-in jtag interfaces:"); + for (i = 0; jtag_interfaces[i]; i++) + { + ERROR("%i: %s", i, jtag_interfaces[i]->name); + } + + return ERROR_JTAG_INVALID_INTERFACE; +} + +int handle_jtag_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + jtag_device_t **last_device_p = &jtag_devices; + + if (*last_device_p) + { + while ((*last_device_p)->next) + last_device_p = &((*last_device_p)->next); + last_device_p = &((*last_device_p)->next); + } + + if (argc < 3) + return ERROR_OK; + + *last_device_p = malloc(sizeof(jtag_device_t)); + (*last_device_p)->ir_length = strtoul(args[0], NULL, 0); + + (*last_device_p)->expected = malloc((*last_device_p)->ir_length); + buf_set_u32((*last_device_p)->expected, 0, (*last_device_p)->ir_length, strtoul(args[1], NULL, 0)); + (*last_device_p)->expected_mask = malloc((*last_device_p)->ir_length); + buf_set_u32((*last_device_p)->expected_mask, 0, (*last_device_p)->ir_length, strtoul(args[2], NULL, 0)); + + (*last_device_p)->cur_instr = malloc((*last_device_p)->ir_length); + (*last_device_p)->bypass = 1; + buf_set_ones((*last_device_p)->cur_instr, (*last_device_p)->ir_length); + + (*last_device_p)->next = NULL; + + jtag_register_event_callback(jtag_reset_callback, (*last_device_p)); + + jtag_num_devices++; + + return ERROR_OK; +} + +int handle_scan_chain_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + jtag_device_t *device = jtag_devices; + int device_count = 0; + + while (device) + { + u32 expected, expected_mask, cur_instr; + expected = buf_get_u32(device->expected, 0, device->ir_length); + expected_mask = buf_get_u32(device->expected_mask, 0, device->ir_length); + cur_instr = buf_get_u32(device->cur_instr, 0, device->ir_length); + command_print(cmd_ctx, "%i: idcode: 0x%8.8x ir length %i, ir capture 0x%x, ir mask 0x%x, current instruction 0x%x", device_count, device->idcode, device->ir_length, expected, expected_mask, cur_instr); + device = device->next; + device_count++; + } + + return ERROR_OK; +} + +int handle_reset_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc >= 1) + { + if (strcmp(args[0], "none") == 0) + jtag_reset_config = RESET_NONE; + else if (strcmp(args[0], "trst_only") == 0) + jtag_reset_config = RESET_HAS_TRST; + else if (strcmp(args[0], "srst_only") == 0) + jtag_reset_config = RESET_HAS_SRST; + else if (strcmp(args[0], "trst_and_srst") == 0) + jtag_reset_config = RESET_TRST_AND_SRST; + else + { + ERROR("invalid reset_config argument, defaulting to none"); + jtag_reset_config = RESET_NONE; + return ERROR_INVALID_ARGUMENTS; + } + } + + if (argc >= 2) + { + if (strcmp(args[1], "srst_pulls_trst") == 0) + jtag_reset_config |= RESET_SRST_PULLS_TRST; + else if (strcmp(args[1], "trst_pulls_srst") == 0) + jtag_reset_config |= RESET_TRST_PULLS_SRST; + else if (strcmp(args[1], "combined") == 0) + jtag_reset_config |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST; + else if (strcmp(args[1], "separate") == 0) + jtag_reset_config &= ~(RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST); + else + { + ERROR("invalid reset_config argument, defaulting to none"); + jtag_reset_config = RESET_NONE; + return ERROR_INVALID_ARGUMENTS; + } + } + + if (argc >= 3) + { + if (strcmp(args[2], "trst_open_drain") == 0) + jtag_reset_config |= RESET_TRST_OPEN_DRAIN; + else if (strcmp(args[2], "trst_push_pull") == 0) + jtag_reset_config &= ~RESET_TRST_OPEN_DRAIN; + else + { + ERROR("invalid reset_config argument, defaulting to none"); + jtag_reset_config = RESET_NONE; + return ERROR_INVALID_ARGUMENTS; + } + } + + if (argc >= 4) + { + if (strcmp(args[3], "srst_push_pull") == 0) + jtag_reset_config |= RESET_SRST_PUSH_PULL; + else if (strcmp(args[3], "srst_open_drain") == 0) + jtag_reset_config &= ~RESET_SRST_PUSH_PULL; + else + { + ERROR("invalid reset_config argument, defaulting to none"); + jtag_reset_config = RESET_NONE; + return ERROR_INVALID_ARGUMENTS; + } + } + + return ERROR_OK; +} + +int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc < 1) + { + ERROR("jtag_nsrst_delay command takes one required argument"); + exit(-1); + } + else + { + jtag_nsrst_delay = strtoul(args[0], NULL, 0); + } + + return ERROR_OK; +} + +int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc < 1) + { + ERROR("jtag_ntrst_delay command takes one required argument"); + exit(-1); + } + else + { + jtag_ntrst_delay = strtoul(args[0], NULL, 0); + } + + return ERROR_OK; +} + +int handle_jtag_speed_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc == 0) + command_print(cmd_ctx, "jtag_speed: %i", jtag_speed); + + if (argc > 0) + { + /* this command can be called during CONFIG, + * in which case jtag isn't initialized */ + if (jtag) + jtag->speed(strtoul(args[0], NULL, 0)); + else + jtag_speed = strtoul(args[0], NULL, 0); + } + + return ERROR_OK; +} + +int handle_endstate_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + enum tap_state state; + + if (argc < 1) + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + else + { + for (state = 0; state < 16; state++) + { + if (strcmp(args[0], tap_state_strings[state]) == 0) + { + jtag_add_end_state(state); + jtag_execute_queue(); + } + } + } + command_print(cmd_ctx, "current endstate: %s", tap_state_strings[end_state]); + + return ERROR_OK; +} + +int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + int trst = -1; + int srst = -1; + int retval; + + if (argc < 2) + { + return ERROR_COMMAND_SYNTAX_ERROR; + + } + + if (args[0][0] == '1') + trst = 1; + else if (args[0][0] == '0') + trst = 0; + else + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + if (args[1][0] == '1') + srst = 1; + else if (args[1][0] == '0') + srst = 0; + else + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + if (!jtag && jtag_interface_init(cmd_ctx) != ERROR_OK) + return ERROR_JTAG_INIT_FAILED; + + if ((retval = jtag_add_reset(trst, srst)) != ERROR_OK) + { + switch (retval) + { + case ERROR_JTAG_RESET_WOULD_ASSERT_TRST: + command_print(cmd_ctx, "requested reset would assert trst\nif this is acceptable, use jtag_reset 1 %c", args[1][0]); + break; + case ERROR_JTAG_RESET_CANT_SRST: + command_print(cmd_ctx, "can't assert srst because the current reset_config doesn't support it"); + break; + default: + command_print(cmd_ctx, "unknown error"); + } + } + jtag_execute_queue(); + + return ERROR_OK; +} + +int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc < 1) + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + jtag_add_runtest(strtol(args[0], NULL, 0), -1); + jtag_execute_queue(); + + return ERROR_OK; + +} + +int handle_statemove_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + enum tap_state state; + + state = -1; + if (argc == 1) + { + for (state = 0; state < 16; state++) + { + if (strcmp(args[0], tap_state_strings[state]) == 0) + { + break; + } + } + } + + jtag_add_statemove(state); + jtag_execute_queue(); + + return ERROR_OK; + +} + +int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + int i; + scan_field_t *fields; + + if ((argc < 2) || (argc % 2)) + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + fields = malloc(sizeof(scan_field_t) * argc / 2); + + for (i = 0; i < argc / 2; i++) + { + int device = strtoul(args[i*2], NULL, 0); + int field_size = jtag_get_device(device)->ir_length; + fields[i].device = device; + fields[i].out_value = malloc(CEIL(field_size, 8)); + buf_set_u32(fields[i].out_value, 0, field_size, strtoul(args[i*2+1], NULL, 0)); + fields[i].out_mask = NULL; + fields[i].in_value = NULL; + fields[i].in_check_mask = NULL; + fields[i].in_handler = NULL; + fields[i].in_handler_priv = NULL; + } + + jtag_add_ir_scan(argc / 2, fields, -1); + jtag_execute_queue(); + + for (i = 0; i < argc / 2; i++) + free(fields[i].out_value); + + free (fields); + + return ERROR_OK; +} + +int handle_drscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + scan_field_t *fields; + int num_fields = 0; + int field_count = 0; + var_t *var; + int i, j; + + if ((argc < 2) || (argc % 2)) + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + for (i = 0; i < argc; i+=2) + { + var = get_var_by_namenum(args[i+1]); + if (var) + { + num_fields += var->num_fields; + } + else + { + command_print(cmd_ctx, "variable %s doesn't exist", args[i+1]); + return ERROR_OK; + } + } + + fields = malloc(sizeof(scan_field_t) * num_fields); + + for (i = 0; i < argc; i+=2) + { + var = get_var_by_namenum(args[i+1]); + + for (j = 0; j < var->num_fields; j++) + { + fields[field_count].device = strtol(args[i], NULL, 0); + fields[field_count].num_bits = var->fields[j].num_bits; + fields[field_count].out_value = malloc(CEIL(var->fields[j].num_bits, 8)); + buf_set_u32(fields[field_count].out_value, 0, var->fields[j].num_bits, var->fields[j].value); + fields[field_count].out_mask = NULL; + fields[field_count].in_value = fields[field_count].out_value; + fields[field_count].in_check_mask = NULL; + fields[field_count].in_check_value = NULL; + fields[field_count].in_handler = field_le_to_host; + fields[field_count++].in_handler_priv = &(var->fields[j]); + } + } + + jtag_add_dr_scan(num_fields, fields, -1); + jtag_execute_queue(); + + for (i = 0; i < argc / 2; i++) + free(fields[i].out_value); + + free(fields); + + return ERROR_OK; +} + +int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) +{ + if (argc == 1) + { + if (strcmp(args[0], "enable") == 0) + { + jtag_verify_capture_ir = 1; + } + else if (strcmp(args[0], "disable") == 0) + { + jtag_verify_capture_ir = 0; + } else + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + } else if (argc != 0) + { + return ERROR_COMMAND_SYNTAX_ERROR; + } + + command_print(cmd_ctx, "verify Capture-IR is %s", (jtag_verify_capture_ir) ? "enabled": "disabled"); + + return ERROR_OK; +} diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index 0e48a020..95a86e65 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -1,327 +1,326 @@ -/*************************************************************************** - * Copyright (C) 2005 by Dominic Rath * - * Dominic.Rath@gmx.de * - * * - * This program is free software; you can redistribute it and/or modify * - * it under the terms of the GNU General Public License as published by * - * the Free Software Foundation; either version 2 of the License, or * - * (at your option) any later version. * - * * - * This program is distributed in the hope that it will be useful, * - * but WITHOUT ANY WARRANTY; without even the implied warranty of * - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * - * GNU General Public License for more details. * - * * - * You should have received a copy of the GNU General Public License * - * along with this program; if not, write to the * - * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * - ***************************************************************************/ -#ifndef JTAG_H -#define JTAG_H - -#include "types.h" -#include "binarybuffer.h" - -#include "command.h" - -#if 0 -#define _DEBUG_JTAG_IO_ -#endif - -/* Tap States - * TLR - Test-Logic-Reset, RTI - Run-Test/Idle, - * SDS - Select-DR-Scan, CD - Capture-DR, SD - Shift-DR, E1D - Exit1-DR, - * PD - Pause-DR, E2D - Exit2-DR, UD - Update-DR, - * SIS - Select-IR-Scan, CI - Capture-IR, SI - Shift-IR, E1I - Exit1-IR, - * PI - Pause-IR, E2I - Exit2-IR, UI - Update-IR - */ -enum tap_state -{ - TAP_TLR = 0x0, TAP_RTI = 0x8, - TAP_SDS = 0x1, TAP_CD = 0x2, TAP_SD = 0x3, TAP_E1D = 0x4, - TAP_PD = 0x5, TAP_E2D = 0x6, TAP_UD = 0x7, - TAP_SIS = 0x9, TAP_CI = 0xa, TAP_SI = 0xb, TAP_E1I = 0xc, - TAP_PI = 0xd, TAP_E2I = 0xe, TAP_UI = 0xf -}; - -typedef struct tap_transition_s -{ - enum tap_state high; - enum tap_state low; -} tap_transition_t; - -extern char* tap_state_strings[16]; -extern int tap_move_map[16]; /* map 16 TAP states to 6 stable states */ -extern u8 tap_move[6][6]; /* value scanned to TMS to move from one of six stable states to another */ -extern tap_transition_t tap_transitions[16]; /* describe the TAP state diagram */ - -extern enum tap_state end_state; /* finish DR scans in dr_end_state */ -extern enum tap_state cur_state; /* current TAP state */ - -extern enum tap_state cmd_queue_end_state; /* finish DR scans in dr_end_state */ -extern enum tap_state cmd_queue_cur_state; /* current TAP state */ - -#define TAP_MOVE(from, to) tap_move[tap_move_map[from]][tap_move_map[to]] - -typedef void * error_handler_t; /* Later on we can delete error_handler_t, but keep it for now to make patches more readable */ - -struct scan_field_s; -typedef int (*in_handler_t)(u8 *in_value, void *priv, struct scan_field_s *field); - -typedef struct scan_field_s -{ - int device; /* ordinal device number this instruction refers to */ - int num_bits; /* number of bits this field specifies (up to 32) */ - u8 *out_value; /* value to be scanned into the device */ - u8 *out_mask; /* only masked bits care */ - u8 *in_value; /* pointer to a 32-bit memory location to take data scanned out */ - /* in_check_value/mask, in_handler_error_handler, in_handler_priv can be used by the in handler, otherwise they contain garbage */ - u8 *in_check_value; /* used to validate scan results */ - u8 *in_check_mask; /* check specified bits against check_value */ - in_handler_t in_handler; /* process received buffer using this handler */ - void *in_handler_priv; /* additional information for the in_handler */ -} scan_field_t; - -enum scan_type -{ - /* IN: from device to host, OUT: from host to device */ - SCAN_IN = 1, SCAN_OUT = 2, SCAN_IO = 3 -}; - -typedef struct scan_command_s -{ - int ir_scan; /* instruction/not data scan */ - int num_fields; /* number of fields in *fields array */ - scan_field_t *fields; /* pointer to an array of data scan fields */ - enum tap_state end_state; /* TAP state in which JTAG commands should finish */ -} scan_command_t; - -typedef struct statemove_command_s -{ - enum tap_state end_state; /* TAP state in which JTAG commands should finish */ -} statemove_command_t; - -typedef struct pathmove_command_s -{ - int num_states; /* number of states in *path */ - enum tap_state *path; /* states that have to be passed */ -} pathmove_command_t; - -typedef struct runtest_command_s -{ - int num_cycles; /* number of cycles that should be spent in Run-Test/Idle */ - enum tap_state end_state; /* TAP state in which JTAG commands should finish */ -} runtest_command_t; - -typedef struct reset_command_s -{ - int trst; /* trst/srst 0: deassert, 1: assert, -1: don't change */ - int srst; -} reset_command_t; - -typedef struct end_state_command_s -{ - enum tap_state end_state; /* TAP state in which JTAG commands should finish */ -} end_state_command_t; - -typedef struct sleep_command_s -{ - u32 us; /* number of microseconds to sleep */ -} sleep_command_t; - -typedef union jtag_command_container_u -{ - scan_command_t *scan; - statemove_command_t *statemove; - pathmove_command_t *pathmove; - runtest_command_t *runtest; - reset_command_t *reset; - end_state_command_t *end_state; - sleep_command_t *sleep; -} jtag_command_container_t; - -enum jtag_command_type -{ - JTAG_SCAN = 1, - JTAG_STATEMOVE = 2, JTAG_RUNTEST = 3, - JTAG_RESET = 4, JTAG_END_STATE = 5, - JTAG_PATHMOVE = 6, JTAG_SLEEP = 7 -}; - -typedef struct jtag_command_s -{ - jtag_command_container_t cmd; - enum jtag_command_type type; - struct jtag_command_s *next; -} jtag_command_t; - -extern jtag_command_t *jtag_command_queue; - -typedef struct jtag_device_s -{ - int ir_length; /* size of instruction register */ - u8 *expected; /* Capture-IR expected value */ - u8 *expected_mask; /* Capture-IR expected mask */ - u32 idcode; /* device identification code */ - u8 *cur_instr; /* current instruction */ - int bypass; /* bypass register selected */ - struct jtag_device_s *next; -} jtag_device_t; - -extern jtag_device_t *jtag_devices; -extern int jtag_num_devices; -extern int jtag_ir_scan_size; - -enum reset_line_mode -{ - LINE_OPEN_DRAIN = 0x0, - LINE_PUSH_PULL = 0x1, -}; - -typedef struct jtag_interface_s -{ - char* name; - - /* queued command execution - */ - int (*execute_queue)(void); - - /* interface initalization - */ - int (*speed)(int speed); - int (*register_commands)(struct command_context_s *cmd_ctx); - int (*init)(void); - int (*quit)(void); - -} jtag_interface_t; - -enum jtag_event -{ - JTAG_SRST_ASSERTED, - JTAG_TRST_ASSERTED, - JTAG_SRST_RELEASED, - JTAG_TRST_RELEASED, -}; - -extern char* jtag_event_strings[]; - -extern int jtag_trst; -extern int jtag_srst; - -typedef struct jtag_event_callback_s -{ - int (*callback)(enum jtag_event event, void *priv); - void *priv; - struct jtag_event_callback_s *next; -} jtag_event_callback_t; - -extern jtag_event_callback_t *jtag_event_callbacks; - -extern jtag_interface_t *jtag; /* global pointer to configured JTAG interface */ -extern enum tap_state end_state; -extern enum tap_state cur_state; - -extern char* jtag_interface; -extern int jtag_speed; - -enum reset_types -{ - RESET_NONE = 0x0, - RESET_HAS_TRST = 0x1, - RESET_HAS_SRST = 0x2, - RESET_TRST_AND_SRST = 0x3, - RESET_SRST_PULLS_TRST = 0x4, - RESET_TRST_PULLS_SRST = 0x8, - RESET_TRST_OPEN_DRAIN = 0x10, - RESET_SRST_PUSH_PULL = 0x20, -}; - -extern enum reset_types jtag_reset_config; - -/* JTAG subsystem */ -extern int jtag_init(struct command_context_s *cmd_ctx); -extern int jtag_register_commands(struct command_context_s *cmd_ctx); - -/* JTAG interface, can be implemented with a software or hardware fifo */ +/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifndef JTAG_H +#define JTAG_H + +#include "types.h" +#include "binarybuffer.h" + +#include "command.h" + +#if 0 +#define _DEBUG_JTAG_IO_ +#endif + +/* Tap States + * TLR - Test-Logic-Reset, RTI - Run-Test/Idle, + * SDS - Select-DR-Scan, CD - Capture-DR, SD - Shift-DR, E1D - Exit1-DR, + * PD - Pause-DR, E2D - Exit2-DR, UD - Update-DR, + * SIS - Select-IR-Scan, CI - Capture-IR, SI - Shift-IR, E1I - Exit1-IR, + * PI - Pause-IR, E2I - Exit2-IR, UI - Update-IR + */ +enum tap_state +{ + TAP_TLR = 0x0, TAP_RTI = 0x8, + TAP_SDS = 0x1, TAP_CD = 0x2, TAP_SD = 0x3, TAP_E1D = 0x4, + TAP_PD = 0x5, TAP_E2D = 0x6, TAP_UD = 0x7, + TAP_SIS = 0x9, TAP_CI = 0xa, TAP_SI = 0xb, TAP_E1I = 0xc, + TAP_PI = 0xd, TAP_E2I = 0xe, TAP_UI = 0xf +}; + +typedef struct tap_transition_s +{ + enum tap_state high; + enum tap_state low; +} tap_transition_t; + +extern char* tap_state_strings[16]; +extern int tap_move_map[16]; /* map 16 TAP states to 6 stable states */ +extern u8 tap_move[6][6]; /* value scanned to TMS to move from one of six stable states to another */ +extern tap_transition_t tap_transitions[16]; /* describe the TAP state diagram */ + +extern enum tap_state end_state; /* finish DR scans in dr_end_state */ +extern enum tap_state cur_state; /* current TAP state */ + +extern enum tap_state cmd_queue_end_state; /* finish DR scans in dr_end_state */ +extern enum tap_state cmd_queue_cur_state; /* current TAP state */ + +#define TAP_MOVE(from, to) tap_move[tap_move_map[from]][tap_move_map[to]] + +typedef void * error_handler_t; /* Later on we can delete error_handler_t, but keep it for now to make patches more readable */ + +struct scan_field_s; +typedef int (*in_handler_t)(u8 *in_value, void *priv, struct scan_field_s *field); + +typedef struct scan_field_s +{ + int device; /* ordinal device number this instruction refers to */ + int num_bits; /* number of bits this field specifies (up to 32) */ + u8 *out_value; /* value to be scanned into the device */ + u8 *out_mask; /* only masked bits care */ + u8 *in_value; /* pointer to a 32-bit memory location to take data scanned out */ + /* in_check_value/mask, in_handler_error_handler, in_handler_priv can be used by the in handler, otherwise they contain garbage */ + u8 *in_check_value; /* used to validate scan results */ + u8 *in_check_mask; /* check specified bits against check_value */ + in_handler_t in_handler; /* process received buffer using this handler */ + void *in_handler_priv; /* additional information for the in_handler */ +} scan_field_t; + +enum scan_type +{ + /* IN: from device to host, OUT: from host to device */ + SCAN_IN = 1, SCAN_OUT = 2, SCAN_IO = 3 +}; + +typedef struct scan_command_s +{ + int ir_scan; /* instruction/not data scan */ + int num_fields; /* number of fields in *fields array */ + scan_field_t *fields; /* pointer to an array of data scan fields */ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} scan_command_t; + +typedef struct statemove_command_s +{ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} statemove_command_t; + +typedef struct pathmove_command_s +{ + int num_states; /* number of states in *path */ + enum tap_state *path; /* states that have to be passed */ +} pathmove_command_t; + +typedef struct runtest_command_s +{ + int num_cycles; /* number of cycles that should be spent in Run-Test/Idle */ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} runtest_command_t; + +typedef struct reset_command_s +{ + int trst; /* trst/srst 0: deassert, 1: assert, -1: don't change */ + int srst; +} reset_command_t; + +typedef struct end_state_command_s +{ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} end_state_command_t; + +typedef struct sleep_command_s +{ + u32 us; /* number of microseconds to sleep */ +} sleep_command_t; + +typedef union jtag_command_container_u +{ + scan_command_t *scan; + statemove_command_t *statemove; + pathmove_command_t *pathmove; + runtest_command_t *runtest; + reset_command_t *reset; + end_state_command_t *end_state; + sleep_command_t *sleep; +} jtag_command_container_t; + +enum jtag_command_type +{ + JTAG_SCAN = 1, + JTAG_STATEMOVE = 2, JTAG_RUNTEST = 3, + JTAG_RESET = 4, JTAG_END_STATE = 5, + JTAG_PATHMOVE = 6, JTAG_SLEEP = 7 +}; + +typedef struct jtag_command_s +{ + jtag_command_container_t cmd; + enum jtag_command_type type; + struct jtag_command_s *next; +} jtag_command_t; + +extern jtag_command_t *jtag_command_queue; + +typedef struct jtag_device_s +{ + int ir_length; /* size of instruction register */ + u8 *expected; /* Capture-IR expected value */ + u8 *expected_mask; /* Capture-IR expected mask */ + u32 idcode; /* device identification code */ + u8 *cur_instr; /* current instruction */ + int bypass; /* bypass register selected */ + struct jtag_device_s *next; +} jtag_device_t; + +extern jtag_device_t *jtag_devices; +extern int jtag_num_devices; +extern int jtag_ir_scan_size; + +enum reset_line_mode +{ + LINE_OPEN_DRAIN = 0x0, + LINE_PUSH_PULL = 0x1, +}; + +typedef struct jtag_interface_s +{ + char* name; + + /* queued command execution + */ + int (*execute_queue)(void); + + /* interface initalization + */ + int (*speed)(int speed); + int (*register_commands)(struct command_context_s *cmd_ctx); + int (*init)(void); + int (*quit)(void); + +} jtag_interface_t; + +enum jtag_event +{ + JTAG_SRST_ASSERTED, + JTAG_TRST_ASSERTED, + JTAG_SRST_RELEASED, + JTAG_TRST_RELEASED, +}; + +extern char* jtag_event_strings[]; + +extern int jtag_trst; +extern int jtag_srst; + +typedef struct jtag_event_callback_s +{ + int (*callback)(enum jtag_event event, void *priv); + void *priv; + struct jtag_event_callback_s *next; +} jtag_event_callback_t; + +extern jtag_event_callback_t *jtag_event_callbacks; + +extern jtag_interface_t *jtag; /* global pointer to configured JTAG interface */ +extern enum tap_state end_state; +extern enum tap_state cur_state; + +extern int jtag_speed; + +enum reset_types +{ + RESET_NONE = 0x0, + RESET_HAS_TRST = 0x1, + RESET_HAS_SRST = 0x2, + RESET_TRST_AND_SRST = 0x3, + RESET_SRST_PULLS_TRST = 0x4, + RESET_TRST_PULLS_SRST = 0x8, + RESET_TRST_OPEN_DRAIN = 0x10, + RESET_SRST_PUSH_PULL = 0x20, +}; + +extern enum reset_types jtag_reset_config; + +/* JTAG subsystem */ +extern int jtag_init(struct command_context_s *cmd_ctx); +extern int jtag_register_commands(struct command_context_s *cmd_ctx); + +/* JTAG interface, can be implemented with a software or hardware fifo */ extern int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); extern int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); extern int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); extern int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); -/* execute a state transition within the JTAG standard, but the exact path - * path that is taken is undefined. Many implementations use precisely - * 7 clocks to perform a transition, but it could be more or less - * than that. - * - * The following assertions are made about certain common state moves: - * - * - A state move from Pause-[ID]R to Pause-[ID]R should always go through - * Update-[ID]R and Capture-[ID]R before returning to Pause-[ID]R, otherwise - * there's no way force a register update, if you can't go to Run-Test/Idle for - * some reason. - * - * - A state move from Pause-[ID]R to Shift-[ID]R must not go through - * Update-[ID]R. - * - * - Run-Test/Idle must not be entered unless requested, because R-T/I may have - * side effects. - */ -extern int jtag_add_statemove(enum tap_state endstate); -/* A list of unambigious single clock state transitions, not - * all drivers can support this, but it is required for e.g. - * XScale and Xilinx support - */ -extern int jtag_add_pathmove(int num_states, enum tap_state *path); -/* cycle precisely num_cycles in the TAP_RTI state */ -extern int jtag_add_runtest(int num_cycles, enum tap_state endstate); -extern int jtag_add_reset(int trst, int srst); -extern int jtag_add_end_state(enum tap_state endstate); -extern int jtag_add_sleep(u32 us); -/* - * For software FIFO implementations, the queued commands can be executed - * during this call or earlier. A sw queue might decide to push out - * some of the jtag_add_xxx() operations once the queue is "big enough". - * - * This fn will return an error code if any of the prior jtag_add_xxx() - * calls caused a failure, e.g. check failure. Note that it does not - * matter if the operation was executed *before* jtag_execute_queue(), - * jtag_execute_queue() will still return an error code. - * - * All jtag_add_xxx() calls that have in_handler!=NULL will have been - * executed when this fn returns, but if what has been queued only - * clocks data out, without reading anything back, then JTAG could - * be running *after* jtag_execute_queue() returns. The API does - * not define a way to flush a hw FIFO that runs *after* - * jtag_execute_queue() returns. - * - * jtag_add_xxx() commands can either be executed immediately or - * at some time between the jtag_add_xxx() fn call and jtag_execute_queue(). - */ -extern int jtag_execute_queue(void); - -/* JTAG support functions */ -extern void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler); -extern enum scan_type jtag_scan_type(scan_command_t *cmd); -extern int jtag_scan_size(scan_command_t *cmd); -extern int jtag_read_buffer(u8 *buffer, scan_command_t *cmd); -extern int jtag_build_buffer(scan_command_t *cmd, u8 **buffer); -extern jtag_device_t* jtag_get_device(int num); -extern void jtag_sleep(u32 us); -extern int jtag_call_event_callbacks(enum jtag_event event); -extern int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv); - -extern int jtag_verify_capture_ir; - - -/* error codes - * JTAG subsystem uses codes between -100 and -199 */ - -#define ERROR_JTAG_INIT_FAILED (-100) -#define ERROR_JTAG_INVALID_INTERFACE (-101) -#define ERROR_JTAG_NOT_IMPLEMENTED (-102) -#define ERROR_JTAG_TRST_ASSERTED (-103) -#define ERROR_JTAG_QUEUE_FAILED (-104) -#define ERROR_JTAG_RESET_WOULD_ASSERT_TRST (-105) -#define ERROR_JTAG_RESET_CANT_SRST (-106) -#define ERROR_JTAG_DEVICE_ERROR (-107) -#endif /* JTAG_H */ +/* execute a state transition within the JTAG standard, but the exact path + * path that is taken is undefined. Many implementations use precisely + * 7 clocks to perform a transition, but it could be more or less + * than that. + * + * The following assertions are made about certain common state moves: + * + * - A state move from Pause-[ID]R to Pause-[ID]R should always go through + * Update-[ID]R and Capture-[ID]R before returning to Pause-[ID]R, otherwise + * there's no way force a register update, if you can't go to Run-Test/Idle for + * some reason. + * + * - A state move from Pause-[ID]R to Shift-[ID]R must not go through + * Update-[ID]R. + * + * - Run-Test/Idle must not be entered unless requested, because R-T/I may have + * side effects. + */ +extern int jtag_add_statemove(enum tap_state endstate); +/* A list of unambigious single clock state transitions, not + * all drivers can support this, but it is required for e.g. + * XScale and Xilinx support + */ +extern int jtag_add_pathmove(int num_states, enum tap_state *path); +/* cycle precisely num_cycles in the TAP_RTI state */ +extern int jtag_add_runtest(int num_cycles, enum tap_state endstate); +extern int jtag_add_reset(int trst, int srst); +extern int jtag_add_end_state(enum tap_state endstate); +extern int jtag_add_sleep(u32 us); +/* + * For software FIFO implementations, the queued commands can be executed + * during this call or earlier. A sw queue might decide to push out + * some of the jtag_add_xxx() operations once the queue is "big enough". + * + * This fn will return an error code if any of the prior jtag_add_xxx() + * calls caused a failure, e.g. check failure. Note that it does not + * matter if the operation was executed *before* jtag_execute_queue(), + * jtag_execute_queue() will still return an error code. + * + * All jtag_add_xxx() calls that have in_handler!=NULL will have been + * executed when this fn returns, but if what has been queued only + * clocks data out, without reading anything back, then JTAG could + * be running *after* jtag_execute_queue() returns. The API does + * not define a way to flush a hw FIFO that runs *after* + * jtag_execute_queue() returns. + * + * jtag_add_xxx() commands can either be executed immediately or + * at some time between the jtag_add_xxx() fn call and jtag_execute_queue(). + */ +extern int jtag_execute_queue(void); + +/* JTAG support functions */ +extern void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler); +extern enum scan_type jtag_scan_type(scan_command_t *cmd); +extern int jtag_scan_size(scan_command_t *cmd); +extern int jtag_read_buffer(u8 *buffer, scan_command_t *cmd); +extern int jtag_build_buffer(scan_command_t *cmd, u8 **buffer); +extern jtag_device_t* jtag_get_device(int num); +extern void jtag_sleep(u32 us); +extern int jtag_call_event_callbacks(enum jtag_event event); +extern int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv); + +extern int jtag_verify_capture_ir; + + +/* error codes + * JTAG subsystem uses codes between -100 and -199 */ + +#define ERROR_JTAG_INIT_FAILED (-100) +#define ERROR_JTAG_INVALID_INTERFACE (-101) +#define ERROR_JTAG_NOT_IMPLEMENTED (-102) +#define ERROR_JTAG_TRST_ASSERTED (-103) +#define ERROR_JTAG_QUEUE_FAILED (-104) +#define ERROR_JTAG_RESET_WOULD_ASSERT_TRST (-105) +#define ERROR_JTAG_RESET_CANT_SRST (-106) +#define ERROR_JTAG_DEVICE_ERROR (-107) +#endif /* JTAG_H */ -- 2.39.5