Outline ![]()
Files ![]()
loading...
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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
/*
* SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "string.h"
#include "freertos/FreeRTOS.h"
#include "SEGGER_RTT.h"
#include "SEGGER_SYSVIEW.h"
#include "SEGGER_SYSVIEW_Conf.h"
#include "esp_app_trace.h"
#include "esp_log.h"
#include "esp_cpu.h"
#include "esp_private/startup_internal.h"
const static char *TAG = "segger_rtt";
#define SYSVIEW_EVENTS_BUF_SZ 255U
// size of down channel data buf
#define SYSVIEW_DOWN_BUF_SIZE 32
#define SEGGER_STOP_WAIT_TMO 1000000 //us
#if CONFIG_APPTRACE_SV_BUF_WAIT_TMO == -1
#define SEGGER_HOST_WAIT_TMO ESP_APPTRACE_TMO_INFINITE
#else
#define SEGGER_HOST_WAIT_TMO CONFIG_APPTRACE_SV_BUF_WAIT_TMO
#endif
static uint8_t s_events_buf[SYSVIEW_EVENTS_BUF_SZ];
static uint16_t s_events_buf_filled;
static uint8_t s_down_buf[SYSVIEW_DOWN_BUF_SIZE];
#if CONFIG_APPTRACE_SV_DEST_UART
#define ESP_APPTRACE_DEST_SYSVIEW ESP_APPTRACE_DEST_UART
#if CONFIG_APPTRACE_SV_DEST_CPU_0 || CONFIG_ESP_SYSTEM_SINGLE_CORE_MODE
#define APPTRACE_SV_DEST_CPU 0
#else
#define APPTRACE_SV_DEST_CPU 1
#endif // CONFIG_APPTRACE_SV_DEST_CPU_0
#elif CONFIG_APPTRACE_SV_DEST_JTAG || (CONFIG_APPTRACE_ENABLE && CONFIG_APPTRACE_DEST_UART_NONE)
#define ESP_APPTRACE_DEST_SYSVIEW ESP_APPTRACE_DEST_TRAX
#endif
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* SEGGER_RTT_ESP_FlushNoLock()
*
* Function description
* Flushes buffered events.
*
* Parameters
* min_sz Threshold for flushing data. If current filling level is above this value, data will be flushed. TRAX destinations only.
* tmo Timeout for operation (in us). Use ESP_APPTRACE_TMO_INFINITE to wait indefinetly.
*
* Return value
* None.
*/
void SEGGER_RTT_ESP_FlushNoLock(unsigned long min_sz, unsigned long tmo)
{
esp_err_t res;
if (s_events_buf_filled > 0) {
res = esp_apptrace_write(ESP_APPTRACE_DEST_SYSVIEW, s_events_buf, s_events_buf_filled, tmo);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Failed to flush buffered events (%d)!", res);
}
}
// flush even if we failed to write buffered events, because no new events will be sent after STOP
res = esp_apptrace_flush_nolock(ESP_APPTRACE_DEST_SYSVIEW, min_sz, tmo);
if (res != ESP_OK) {
ESP_LOGE(TAG, "Failed to flush apptrace data (%d)!", res);
}
s_events_buf_filled = 0;
}
/*********************************************************************
*
* SEGGER_RTT_ESP_Flush()
*
* Function description
* Flushes buffered events.
*
* Parameters
* min_sz Threshold for flushing data. If current filling level is above this value, data will be flushed. TRAX destinations only.
* tmo Timeout for operation (in us). Use ESP_APPTRACE_TMO_INFINITE to wait indefinetly.
*
* Return value
* None.
*/
void SEGGER_RTT_ESP_Flush(unsigned long min_sz, unsigned long tmo)
{
SEGGER_SYSVIEW_LOCK();
SEGGER_RTT_ESP_FlushNoLock(min_sz, tmo);
SEGGER_SYSVIEW_UNLOCK();
}
/*********************************************************************
*
* SEGGER_RTT_ReadNoLock()
*
* Function description
* Reads characters from SEGGER real-time-terminal control block
* which have been previously stored by the host.
* Do not lock against interrupts and multiple access.
*
* Parameters
* BufferIndex Index of Down-buffer to be used (e.g. 0 for "Terminal").
* pBuffer Pointer to buffer provided by target application, to copy characters from RTT-down-buffer to.
* BufferSize Size of the target application buffer.
*
* Return value
* Number of bytes that have been read.
*/
unsigned SEGGER_RTT_ReadNoLock(unsigned BufferIndex, void* pData, unsigned BufferSize) {
uint32_t size = BufferSize;
esp_err_t res = esp_apptrace_read(ESP_APPTRACE_DEST_SYSVIEW, pData, &size, 0);
if (res != ESP_OK) {
return 0;
}
return size;
}
/*********************************************************************
*
* SEGGER_RTT_WriteSkipNoLock
*
* Function description
* Stores a specified number of characters in SEGGER RTT
* control block which is then read by the host.
* SEGGER_RTT_WriteSkipNoLock does not lock the application and
* skips all data, if the data does not fit into the buffer.
*
* Parameters
* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
*
* Return value
* Number of bytes which have been stored in the "Up"-buffer.
*
* Notes
* (1) If there is not enough space in the "Up"-buffer, all data is dropped.
* (2) For performance reasons this function does not call Init()
* and may only be called after RTT has been initialized.
* Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
*/
unsigned SEGGER_RTT_WriteSkipNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
uint8_t *pbuf = (uint8_t *)pBuffer;
uint8_t event_id = *pbuf;
#if CONFIG_APPTRACE_SV_DEST_UART
if (
(APPTRACE_SV_DEST_CPU != esp_cpu_get_core_id()) &&
(
(event_id == SYSVIEW_EVTID_ISR_ENTER) ||
(event_id == SYSVIEW_EVTID_ISR_EXIT) ||
(event_id == SYSVIEW_EVTID_TASK_START_EXEC) ||
(event_id == SYSVIEW_EVTID_TASK_STOP_EXEC) ||
(event_id == SYSVIEW_EVTID_TASK_START_READY) ||
(event_id == SYSVIEW_EVTID_TASK_STOP_READY) ||
(event_id == SYSVIEW_EVTID_MARK_START) ||
(event_id == SYSVIEW_EVTID_MARK_STOP) ||
(event_id == SYSVIEW_EVTID_TIMER_ENTER) ||
(event_id == SYSVIEW_EVTID_TIMER_EXIT) ||
(event_id == SYSVIEW_EVTID_STACK_INFO) ||
(event_id == SYSVIEW_EVTID_MODULEDESC)
)
){
return NumBytes;
}
// This is workaround for SystemView!
// Without this line SystemView will hangs on when heap tracing enabled.
if(event_id == SYSVIEW_EVTID_MODULEDESC){
return NumBytes;
}
#endif // CONFIG_APPTRACE_SV_DEST_UART
if (NumBytes > SYSVIEW_EVENTS_BUF_SZ) {
ESP_LOGE(TAG, "Too large event %u bytes!", NumBytes);
return 0;
}
#if CONFIG_APPTRACE_SV_DEST_JTAG
if (esp_cpu_get_core_id()) { // dual core specific code
// use the highest - 1 bit of event ID to indicate core ID
// the highest bit can not be used due to event ID encoding method
// this reduces supported ID range to [0..63] (for 1 byte IDs) plus [128..16383] (for 2 bytes IDs)
if (*pbuf & 0x80) { // 2 bytes ID
*(pbuf + 1) |= (1 << 6);
} else if (NumBytes != 10 || *pbuf != 0) { // ignore sync sequence
*pbuf |= (1 << 6);
}
}
#endif // CONFIG_APPTRACE_SV_DEST_JTAG
#if CONFIG_APPTRACE_SV_DEST_JTAG
if (s_events_buf_filled + NumBytes > SYSVIEW_EVENTS_BUF_SZ) {
esp_err_t res = esp_apptrace_write(ESP_APPTRACE_DEST_SYSVIEW, s_events_buf, s_events_buf_filled, SEGGER_HOST_WAIT_TMO);
if (res != ESP_OK) {
return 0; // skip current data buffer only, accumulated events are kept
}
s_events_buf_filled = 0;
}
#endif
memcpy(&s_events_buf[s_events_buf_filled], pBuffer, NumBytes);
s_events_buf_filled += NumBytes;
#if CONFIG_APPTRACE_SV_DEST_UART
esp_err_t res = esp_apptrace_write(ESP_APPTRACE_DEST_SYSVIEW, pBuffer, NumBytes, SEGGER_HOST_WAIT_TMO);
if (res != ESP_OK)
{
return 0; // skip current data buffer only, accumulated events are kept
}
s_events_buf_filled = 0;
#endif
if (event_id == SYSVIEW_EVTID_TRACE_STOP)
{
SEGGER_RTT_ESP_FlushNoLock(0, SEGGER_STOP_WAIT_TMO);
}
return NumBytes;
}
/*********************************************************************
*
* SEGGER_RTT_ConfigUpBuffer
*
* Function description
* Run-time configuration of a specific up-buffer (T->H).
* Buffer to be configured is specified by index.
* This includes: Buffer address, size, name, flags, ...
*
* Parameters
* BufferIndex Index of the buffer to configure.
* sName Pointer to a constant name string.
* pBuffer Pointer to a buffer to be used.
* BufferSize Size of the buffer.
* Flags Operating modes. Define behavior if buffer is full (not enough space for entire message).
*
* Return value
* >= 0 - O.K.
* < 0 - Error
*
* Additional information
* Buffer 0 is configured on compile-time.
* May only be called once per buffer.
* Buffer name and flags can be reconfigured using the appropriate functions.
*/
int SEGGER_RTT_ConfigUpBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
s_events_buf_filled = 0;
return 0;
}
/*********************************************************************
*
* SEGGER_RTT_ConfigDownBuffer
*
* Function description
* Run-time configuration of a specific down-buffer (H->T).
* Buffer to be configured is specified by index.
* This includes: Buffer address, size, name, flags, ...
*
* Parameters
* BufferIndex Index of the buffer to configure.
* sName Pointer to a constant name string.
* pBuffer Pointer to a buffer to be used.
* BufferSize Size of the buffer.
* Flags Operating modes. Define behavior if buffer is full (not enough space for entire message).
*
* Return value
* >= 0 O.K.
* < 0 Error
*
* Additional information
* Buffer 0 is configured on compile-time.
* May only be called once per buffer.
* Buffer name and flags can be reconfigured using the appropriate functions.
*/
int SEGGER_RTT_ConfigDownBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
esp_apptrace_down_buffer_config(s_down_buf, sizeof(s_down_buf));
return 0;
}
/*************************** Init hook ****************************
*
* This init function is placed here because this port file will be
* linked whenever SystemView is used.
*/
ESP_SYSTEM_INIT_FN(sysview_init, SECONDARY, BIT(0), 120)
{
SEGGER_SYSVIEW_Conf();
return ESP_OK;
}
/*************************** End of file ****************************/
Details ![]()
Show: from Types: Columns: ![]( "Show Project Names")
![]( "Show Locations")
![]( "Show Referring Symbols")
![]( "Show Scope")
This file uses the notable symbols shown below. Click anywhere in the file to view more details.