f9509c92db
If the command 'itm port[s]' is issued before 'init', the ITM can not be programmed because OpenOCD cannot access the target yet. The configuration is recorded and applied after target examine. The current test to trigger the ITM delayed-programming is based on the TPIU configuration. This is allowed because the only use of ITM it so send data through TPIU. In case of system TPIU, not belonging anymore to the target, there is no more association between target ITM and system TPIU. Add a flag to record the pending ITM configuration requested before 'init' and test the flag to trigger the delayed-programming of the ITM. Change-Id: I101eb97a116d7925cd2ff068f3e8813fc008b08e Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: http://openocd.zylin.com/6029 Tested-by: jenkins
110 lines
4.3 KiB
C
110 lines
4.3 KiB
C
/***************************************************************************
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* Copyright (C) 2015 Paul Fertser <fercerpav@gmail.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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***************************************************************************/
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#ifndef OPENOCD_TARGET_ARMV7M_TRACE_H
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#define OPENOCD_TARGET_ARMV7M_TRACE_H
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#include <server/server.h>
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#include <target/target.h>
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#include <command.h>
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/**
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* @file
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* Holds the interface to TPIU, ITM and DWT configuration functions.
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*/
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enum trace_config_type {
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TRACE_CONFIG_TYPE_DISABLED, /**< tracing is disabled */
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TRACE_CONFIG_TYPE_EXTERNAL, /**< trace output is captured externally */
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TRACE_CONFIG_TYPE_INTERNAL /**< trace output is handled by OpenOCD adapter driver */
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};
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enum trace_internal_channel {
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TRACE_INTERNAL_CHANNEL_TCL_ONLY, /** trace data is sent only to 'tcl_trace' */
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TRACE_INTERNAL_CHANNEL_FILE, /** trace data is appended to a file */
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TRACE_INTERNAL_CHANNEL_TCP /** trace data is appended to a TCP/IP port*/
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};
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enum tpiu_pin_protocol {
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TPIU_PIN_PROTOCOL_SYNC, /**< synchronous trace output */
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TPIU_PIN_PROTOCOL_ASYNC_MANCHESTER, /**< asynchronous output with Manchester coding */
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TPIU_PIN_PROTOCOL_ASYNC_UART /**< asynchronous output with NRZ coding */
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};
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enum itm_ts_prescaler {
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ITM_TS_PRESCALE1, /**< no prescaling for the timestamp counter */
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ITM_TS_PRESCALE4, /**< refclock divided by 4 for the timestamp counter */
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ITM_TS_PRESCALE16, /**< refclock divided by 16 for the timestamp counter */
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ITM_TS_PRESCALE64, /**< refclock divided by 64 for the timestamp counter */
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};
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struct armv7m_trace_config {
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/** Currently active trace capture mode */
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enum trace_config_type config_type;
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/** The used channel when internal mode is selected */
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enum trace_internal_channel internal_channel;
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/** Currently active trace output mode */
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enum tpiu_pin_protocol pin_protocol;
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/** TPIU formatter enable/disable (in async mode) */
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bool formatter;
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/** Synchronous output port width */
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uint32_t port_size;
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/** Bitmask of currently enabled ITM stimuli */
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uint32_t itm_ter[8];
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/** Identifier for multi-source trace stream formatting */
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unsigned int trace_bus_id;
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/** Prescaler for the timestamp counter */
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enum itm_ts_prescaler itm_ts_prescale;
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/** Enable differential timestamps */
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bool itm_diff_timestamps;
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/** Enable async timestamps model */
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bool itm_async_timestamps;
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/** Enable synchronisation packet transmission (for sync port only) */
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bool itm_synchro_packets;
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/** Config ITM after target examine */
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bool itm_deferred_config;
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/** Current frequency of TRACECLKIN (usually matches HCLK) */
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unsigned int traceclkin_freq;
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/** Current frequency of trace port */
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unsigned int trace_freq;
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/** Handle to output trace data in INTERNAL capture mode via file */
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FILE *trace_file;
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/** Handle to output trace data in INTERNAL capture mode via tcp */
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struct service *trace_service;
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};
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extern const struct command_registration armv7m_trace_command_handlers[];
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/**
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* Configure hardware accordingly to the current TPIU target settings
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*/
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int armv7m_trace_tpiu_config(struct target *target);
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/**
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* Disable TPIU data gathering at exit
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*/
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int armv7m_trace_tpiu_exit(struct target *target);
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/**
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* Configure hardware accordingly to the current ITM target settings
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*/
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int armv7m_trace_itm_config(struct target *target);
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#endif /* OPENOCD_TARGET_ARMV7M_TRACE_H */
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