blob: 96c18958700bbc76ba1b748c752391bcd932354f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/***************************************************************************
* 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. *
***************************************************************************/
#ifndef ARMV7M_TRACE_H
#define ARMV7M_TRACE_H
#include <command.h>
/**
* @file
* Holds the interface to TPIU, ITM and DWT configuration functions.
*/
enum trace_config_type {
DISABLED, /**< tracing is disabled */
EXTERNAL, /**< trace output is captured externally */
INTERNAL /**< trace output is handled by OpenOCD adapter driver */
};
enum tpio_pin_protocol {
SYNC, /**< synchronous trace output */
ASYNC_MANCHESTER, /**< asynchronous output with Manchester coding */
ASYNC_UART /**< asynchronous output with NRZ coding */
};
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 {
/** Currently active trace capture mode */
enum trace_config_type config_type;
/** Currently active trace output mode */
enum tpio_pin_protocol pin_protocol;
/** TPIU formatter enable/disable (in async mode) */
bool formatter;
/** Synchronous output port width */
uint32_t port_size;
/** Bitmask of currenty 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;
/** Current frequency of TRACECLKIN (usually matches HCLK) */
unsigned int traceclkin_freq;
/** Current frequency of trace port */
unsigned int trace_freq;
/** Handle to output trace data in INTERNAL capture mode */
FILE *trace_file;
};
extern const struct command_registration armv7m_trace_command_handlers[];
/**
* Configure hardware accordingly to the current TPIU target settings
*/
int armv7m_trace_tpiu_config(struct target *target);
/**
* Configure hardware accordingly to the current ITM target settings
*/
int armv7m_trace_itm_config(struct target *target);
#endif
|
