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/***************************************************************************
* Copyright (C) 2015 Paul Fertser <fercerpav@gmail.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifndef OPENOCD_TARGET_ARMV7M_TRACE_H
#define OPENOCD_TARGET_ARMV7M_TRACE_H
#include <helper/command.h>
#include <target/target.h>
/**
* @file
* Holds the interface to ITM and DWT configuration functions.
*/
enum itm_ts_prescaler {
ITM_TS_PRESCALE1, /**< no prescaling for the timestamp counter */
ITM_TS_PRESCALE4, /**< refclock divided by 4 for the timestamp counter */
ITM_TS_PRESCALE16, /**< refclock divided by 16 for the timestamp counter */
ITM_TS_PRESCALE64, /**< refclock divided by 64 for the timestamp counter */
};
struct armv7m_trace_config {
/** Bitmask of currently enabled ITM stimuli */
uint32_t itm_ter[8];
/** Identifier for multi-source trace stream formatting */
unsigned int trace_bus_id;
/** Prescaler for the timestamp counter */
enum itm_ts_prescaler itm_ts_prescale;
/** Enable differential timestamps */
bool itm_diff_timestamps;
/** Enable async timestamps model */
bool itm_async_timestamps;
/** Enable synchronisation packet transmission (for sync port only) */
bool itm_synchro_packets;
/** Config ITM after target examine */
bool itm_deferred_config;
};
extern const struct command_registration armv7m_trace_command_handlers[];
/**
* Configure hardware accordingly to the current ITM target settings
*/
int armv7m_trace_itm_config(struct target *target);
#endif /* OPENOCD_TARGET_ARMV7M_TRACE_H */
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