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OVMS3-idf/components/app_trace/sys_view/Sample/Config/SEGGER_SYSVIEW_Config_FreeRTOS.c
Alexey Gerenkov 8d43859b6a esp32: SEGGER SystemView Tracing Support 
Implements support for system level traces compatible with SEGGER
SystemView tool on top of ESP32 application tracing module.
That kind of traces can help to analyse program's behaviour.
SystemView can show timeline of tasks/ISRs execution, context switches,
statistics related to the CPUs' load distribution etc.

Also this commit adds useful feature to ESP32 application tracing module:
 - Trace data buffering is implemented to handle temporary peaks of events load
2017-06-27 20:52:43 +03:00

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/*********************************************************************
* SEGGER Microcontroller GmbH & Co. KG *
* The Embedded Experts *
**********************************************************************
* *
* (c) 2015 - 2017 SEGGER Microcontroller GmbH & Co. KG *
* *
* www.segger.com Support: support@segger.com *
* *
**********************************************************************
* *
* SEGGER SystemView * Real-time application analysis *
* *
**********************************************************************
* *
* All rights reserved. *
* *
* SEGGER strongly recommends to not make any changes *
* to or modify the source code of this software in order to stay *
* compatible with the RTT protocol and J-Link. *
* *
* Redistribution and use in source and binary forms, with or *
* without modification, are permitted provided that the following *
* conditions are met: *
* *
* o Redistributions of source code must retain the above copyright *
* notice, this list of conditions and the following disclaimer. *
* *
* o Redistributions in binary form must reproduce the above *
* copyright notice, this list of conditions and the following *
* disclaimer in the documentation and/or other materials provided *
* with the distribution. *
* *
* o Neither the name of SEGGER Microcontroller GmbH & Co. KG *
* nor the names of its contributors may be used to endorse or *
* promote products derived from this software without specific *
* prior written permission. *
* *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
* DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR *
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
* DAMAGE. *
* *
**********************************************************************
* *
* SystemView version: V2.42 *
* *
**********************************************************************
-------------------------- END-OF-HEADER -----------------------------
File : SEGGER_SYSVIEW_Config_FreeRTOS.c
Purpose : Sample setup configuration of SystemView with FreeRTOS.
Revision: $Rev: 3734 $
*/
#include "freertos/FreeRTOS.h"
#include "SEGGER_SYSVIEW.h"
#include "rom/ets_sys.h"
#if CONFIG_FREERTOS_UNICORE == 0
#include "driver/timer.h"
#endif
#include "esp_app_trace.h"
#include "esp_app_trace_util.h"
#include "esp_intr_alloc.h"
extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
/*********************************************************************
*
* Defines, configurable
*
**********************************************************************
*/
// The application name to be displayed in SystemViewer
#define SYSVIEW_APP_NAME "FreeRTOS Application"
// The target device name
#define SYSVIEW_DEVICE_NAME "ESP32"
// Frequency of the timestamp.
#if CONFIG_FREERTOS_UNICORE == 0
#define SYSVIEW_TIMESTAMP_FREQ (TIMER_BASE_CLK/2)
#else
#define SYSVIEW_TIMESTAMP_FREQ (XT_CLOCK_FREQ)
#endif
// System Frequency.
#define SYSVIEW_CPU_FREQ (XT_CLOCK_FREQ)
// The lowest RAM address used for IDs (pointers)
#define SYSVIEW_RAM_BASE (0x3F400000)
#if CONFIG_FREERTOS_CORETIMER_0
#define SYSTICK_INTR_ID (ETS_INTERNAL_TIMER0_INTR_SOURCE+ETS_INTERNAL_INTR_SOURCE_OFF)
#endif
#if CONFIG_FREERTOS_CORETIMER_1
#define SYSTICK_INTR_ID (ETS_INTERNAL_TIMER1_INTR_SOURCE+ETS_INTERNAL_INTR_SOURCE_OFF)
#endif
#if CONFIG_FREERTOS_UNICORE == 0
static timer_idx_t s_ts_timer_idx;
static timer_group_t s_ts_timer_group;
#endif
// SystemView is single core specific: it implies that SEGGER_SYSVIEW_LOCK()
// disables IRQs (disables rescheduling globaly). So we can not use finite timeouts for locks and return error
// in case of expiration, because error will not be handled and SEGGER's code will go further implying that
// everything is fine, so for multi-core env we have to wait on underlying lock forever
#define SEGGER_LOCK_WAIT_TMO ESP_APPTRACE_TMO_INFINITE
static esp_apptrace_lock_t s_sys_view_lock = {.irq_stat = 0, .portmux = portMUX_INITIALIZER_UNLOCKED};
static const char * const s_isr_names[] = {
[0] = "WIFI_MAC",
[1] = "WIFI_NMI",
[2] = "WIFI_BB",
[3] = "BT_MAC",
[4] = "BT_BB",
[5] = "BT_BB_NMI",
[6] = "RWBT",
[7] = "RWBLE",
[8] = "RWBT_NMI",
[9] = "RWBLE_NMI",
[10] = "SLC0",
[11] = "SLC1",
[12] = "UHCI0",
[13] = "UHCI1",
[14] = "TG0_T0_LEVEL",
[15] = "TG0_T1_LEVEL",
[16] = "TG0_WDT_LEVEL",
[17] = "TG0_LACT_LEVEL",
[18] = "TG1_T0_LEVEL",
[19] = "TG1_T1_LEVEL",
[20] = "TG1_WDT_LEVEL",
[21] = "TG1_LACT_LEVEL",
[22] = "GPIO",
[23] = "GPIO_NMI",
[24] = "FROM_CPU0",
[25] = "FROM_CPU1",
[26] = "FROM_CPU2",
[27] = "FROM_CPU3",
[28] = "SPI0",
[29] = "SPI1",
[30] = "SPI2",
[31] = "SPI3",
[32] = "I2S0",
[33] = "I2S1",
[34] = "UART0",
[35] = "UART1",
[36] = "UART2",
[37] = "SDIO_HOST",
[38] = "ETH_MAC",
[39] = "PWM0",
[40] = "PWM1",
[41] = "PWM2",
[42] = "PWM3",
[43] = "LEDC",
[44] = "EFUSE",
[45] = "CAN",
[46] = "RTC_CORE",
[47] = "RMT",
[48] = "PCNT",
[49] = "I2C_EXT0",
[50] = "I2C_EXT1",
[51] = "RSA",
[52] = "SPI1_DMA",
[53] = "SPI2_DMA",
[54] = "SPI3_DMA",
[55] = "WDT",
[56] = "TIMER1",
[57] = "TIMER2",
[58] = "TG0_T0_EDGE",
[59] = "TG0_T1_EDGE",
[60] = "TG0_WDT_EDGE",
[61] = "TG0_LACT_EDGE",
[62] = "TG1_T0_EDGE",
[63] = "TG1_T1_EDGE",
[64] = "TG1_WDT_EDGE",
[65] = "TG1_LACT_EDGE",
[66] = "MMU_IA",
[67] = "MPU_IA",
[68] = "CACHE_IA",
};
/*********************************************************************
*
* _cbSendSystemDesc()
*
* Function description
* Sends SystemView description strings.
*/
static void _cbSendSystemDesc(void) {
char irq_str[32];
SEGGER_SYSVIEW_SendSysDesc("N="SYSVIEW_APP_NAME",D="SYSVIEW_DEVICE_NAME",C=Xtensa,O=FreeRTOS");
snprintf(irq_str, sizeof(irq_str), "I#%d=SysTick", SYSTICK_INTR_ID);
SEGGER_SYSVIEW_SendSysDesc(irq_str);
size_t isr_count = sizeof(s_isr_names)/sizeof(s_isr_names[0]);
for (size_t i = 0; i < isr_count; ++i) {
snprintf(irq_str, sizeof(irq_str), "I#%d=%s", ETS_INTERNAL_INTR_SOURCE_OFF + i, s_isr_names[i]);
SEGGER_SYSVIEW_SendSysDesc(irq_str);
}
}
/*********************************************************************
*
* Global functions
*
**********************************************************************
*/
#if CONFIG_FREERTOS_UNICORE == 0
static void SEGGER_SYSVIEW_TS_Init()
{
timer_config_t config;
#if CONFIG_SYSVIEW_TS_SOURCE_TIMER_00
s_ts_timer_group = TIMER_GROUP_0;
s_ts_timer_idx = TIMER_0;
#endif
#if CONFIG_SYSVIEW_TS_SOURCE_TIMER_01
s_ts_timer_group = TIMER_GROUP_0;
s_ts_timer_idx = TIMER_1;
#endif
#if CONFIG_SYSVIEW_TS_SOURCE_TIMER_10
s_ts_timer_group = TIMER_GROUP_1;
s_ts_timer_idx = TIMER_0;
#endif
#if CONFIG_SYSVIEW_TS_SOURCE_TIMER_11
s_ts_timer_group = TIMER_GROUP_1;
s_ts_timer_idx = TIMER_1;
#endif
config.alarm_en = 0;
config.auto_reload = 0;
config.counter_dir = TIMER_COUNT_UP;
config.divider = 2;
config.counter_en = 0;
/*Configure timer*/
timer_init(s_ts_timer_group, s_ts_timer_idx, &config);
/*Load counter value */
timer_set_counter_value(s_ts_timer_group, s_ts_timer_idx, 0x00000000ULL);
/*Enable timer interrupt*/
timer_start(s_ts_timer_group, s_ts_timer_idx);
}
#endif
void SEGGER_SYSVIEW_Conf(void) {
U32 disable_evts = 0;
#if CONFIG_FREERTOS_UNICORE == 0
SEGGER_SYSVIEW_TS_Init();
#endif
SEGGER_SYSVIEW_Init(SYSVIEW_TIMESTAMP_FREQ, SYSVIEW_CPU_FREQ,
&SYSVIEW_X_OS_TraceAPI, _cbSendSystemDesc);
SEGGER_SYSVIEW_SetRAMBase(SYSVIEW_RAM_BASE);
#if !CONFIG_SYSVIEW_EVT_OVERFLOW_ENABLE
disable_evts |= SYSVIEW_EVTMASK_OVERFLOW;
#endif
#if !CONFIG_SYSVIEW_EVT_ISR_ENTER_ENABLE
disable_evts |= SYSVIEW_EVTMASK_ISR_ENTER;
#endif
#if !CONFIG_SYSVIEW_EVT_ISR_EXIT_ENABLE
disable_evts |= SYSVIEW_EVTMASK_ISR_EXIT;
#endif
#if !CONFIG_SYSVIEW_EVT_TASK_START_EXEC_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TASK_START_EXEC;
#endif
#if !CONFIG_SYSVIEW_EVT_TASK_STOP_EXEC_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TASK_STOP_EXEC;
#endif
#if !CONFIG_SYSVIEW_EVT_TASK_START_READY_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TASK_START_READY;
#endif
#if !CONFIG_SYSVIEW_EVT_TASK_STOP_READY_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TASK_STOP_READY;
#endif
#if !CONFIG_SYSVIEW_EVT_TASK_CREATE_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TASK_CREATE;
#endif
#if !CONFIG_SYSVIEW_EVT_TASK_TERMINATE_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TASK_TERMINATE;
#endif
#if !CONFIG_SYSVIEW_EVT_IDLE_ENABLE
disable_evts |= SYSVIEW_EVTMASK_IDLE;
#endif
#if !CONFIG_SYSVIEW_EVT_ISR_TO_SCHEDULER_ENABLE
disable_evts |= SYSVIEW_EVTMASK_ISR_TO_SCHEDULER;
#endif
#if !CONFIG_SYSVIEW_EVT_TIMER_ENTER_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TIMER_ENTER;
#endif
#if !CONFIG_SYSVIEW_EVT_TIMER_EXIT_ENABLE
disable_evts |= SYSVIEW_EVTMASK_TIMER_EXIT;
#endif
SEGGER_SYSVIEW_DisableEvents(disable_evts);
}
U32 SEGGER_SYSVIEW_X_GetTimestamp()
{
#if CONFIG_FREERTOS_UNICORE == 0
uint64_t ts = 0;
timer_get_counter_value(s_ts_timer_group, s_ts_timer_idx, &ts);
return (U32)ts; // return lower part of counter value
#else
return portGET_RUN_TIME_COUNTER_VALUE();
#endif
}
void SEGGER_SYSVIEW_X_RTT_Lock()
{
}
void SEGGER_SYSVIEW_X_RTT_Unlock()
{
}
void SEGGER_SYSVIEW_X_SysView_Lock()
{
esp_apptrace_lock_take(&s_sys_view_lock, SEGGER_LOCK_WAIT_TMO);
}
void SEGGER_SYSVIEW_X_SysView_Unlock()
{
esp_apptrace_lock_give(&s_sys_view_lock);
}
/*************************** End of file ****************************/
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