esp-idf/components/app_trace/app_trace.c

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2021-05-02 22:15:17 -04:00
/*
* SPDX-FileCopyrightText: 2017-2024 Espressif Systems (Shanghai) CO LTD
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*
* SPDX-License-Identifier: Apache-2.0 OR MIT
2021-05-02 22:15:17 -04:00
*/
#include <string.h>
#include "esp_cpu.h"
#include "esp_log.h"
#include "esp_app_trace.h"
#include "esp_app_trace_port.h"
#include "esp_private/startup_internal.h"
#ifdef CONFIG_APPTRACE_DEST_UART0
#define ESP_APPTRACE_DEST_UART_NUM 0
#elif CONFIG_APPTRACE_DEST_UART1
#define ESP_APPTRACE_DEST_UART_NUM 1
#elif CONFIG_APPTRACE_DEST_UART2
#define ESP_APPTRACE_DEST_UART_NUM 2
#elif CONFIG_APPTRACE_DEST_USB_CDC
#define ESP_APPTRACE_DEST_UART_NUM 10
#else
#define ESP_APPTRACE_DEST_UART_NUM 0
#endif
#define ESP_APPTRACE_MAX_VPRINTF_ARGS 256
#define ESP_APPTRACE_HOST_BUF_SIZE 256
#define ESP_APPTRACE_PRINT_LOCK 0
const static char *TAG = "esp_apptrace";
/** tracing module internal data */
typedef struct {
esp_apptrace_hw_t *hw;
void *hw_data;
} esp_apptrace_channel_t;
static esp_apptrace_channel_t s_trace_channels[ESP_APPTRACE_DEST_MAX];
static bool s_inited;
esp_err_t esp_apptrace_init(void)
{
int res;
esp_apptrace_hw_t *hw = NULL;
void *hw_data = NULL;
// 'esp_apptrace_init()' is called on every core, so ensure to do main initialization only once
if (esp_cpu_get_core_id() == 0) {
memset(&s_trace_channels, 0, sizeof(s_trace_channels));
hw = esp_apptrace_jtag_hw_get(&hw_data);
ESP_APPTRACE_LOGD("HW interface %p", hw);
if (hw != NULL) {
s_trace_channels[ESP_APPTRACE_DEST_JTAG].hw = hw;
s_trace_channels[ESP_APPTRACE_DEST_JTAG].hw_data = hw_data;
}
hw = esp_apptrace_uart_hw_get(ESP_APPTRACE_DEST_UART_NUM, &hw_data);
if (hw != NULL) {
s_trace_channels[ESP_APPTRACE_DEST_UART].hw = hw;
s_trace_channels[ESP_APPTRACE_DEST_UART].hw_data = hw_data;
}
s_inited = true;
}
// esp_apptrace_init() is called on every core, so initialize trace channel on every core
for (int i = 0; i < sizeof(s_trace_channels) / sizeof(s_trace_channels[0]); i++) {
esp_apptrace_channel_t *ch = &s_trace_channels[i];
if (ch->hw) {
res = ch->hw->init(ch->hw_data);
if (res != ESP_OK) {
ESP_APPTRACE_LOGE("Failed to init trace channel HW interface (%d)!", res);
return res;
}
}
}
return ESP_OK;
}
ESP_SYSTEM_INIT_FN(esp_apptrace_init, SECONDARY, ESP_SYSTEM_INIT_ALL_CORES, 115)
{
return esp_apptrace_init();
}
void esp_apptrace_down_buffer_config(uint8_t *buf, uint32_t size)
{
esp_apptrace_channel_t *ch;
if (!s_inited) {
return;
}
// currently down buffer is supported for JTAG interface only
// TODO: one more argument should be added to this function to specify HW inteface: JTAG, UART0 etc
ch = &s_trace_channels[ESP_APPTRACE_DEST_JTAG];
if (ch->hw != NULL) {
if (ch->hw->down_buffer_config != NULL) {
ch->hw->down_buffer_config(ch->hw_data, buf, size);
}
} else {
ESP_APPTRACE_LOGD("Trace destination for JTAG not supported!");
}
ch = &s_trace_channels[ESP_APPTRACE_DEST_UART];
if (ch->hw != NULL) {
if (ch->hw->down_buffer_config != NULL) {
ch->hw->down_buffer_config(ch->hw_data, buf, size);
}
} else {
ESP_APPTRACE_LOGD("Trace destination for UART not supported!");
}
}
uint8_t *esp_apptrace_down_buffer_get(esp_apptrace_dest_t dest, uint32_t *size, uint32_t user_tmo)
{
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return NULL;
}
if (size == NULL || *size == 0) {
return NULL;
}
if (!s_inited) {
return NULL;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return NULL;
}
if (ch->hw->get_down_buffer == NULL) {
return NULL;
}
esp_apptrace_tmo_init(&tmo, user_tmo);
return ch->hw->get_down_buffer(ch->hw_data, size, &tmo);
}
esp_err_t esp_apptrace_down_buffer_put(esp_apptrace_dest_t dest, uint8_t *ptr, uint32_t user_tmo)
{
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return ESP_ERR_INVALID_ARG;
}
if (ptr == NULL) {
return ESP_ERR_INVALID_ARG;
}
if (!s_inited) {
return ESP_ERR_INVALID_STATE;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return ESP_ERR_NOT_SUPPORTED;
}
if (ch->hw->get_down_buffer == NULL) {
return ESP_ERR_NOT_SUPPORTED;
}
esp_apptrace_tmo_init(&tmo, user_tmo);
return ch->hw->put_down_buffer(ch->hw_data, ptr, &tmo);
}
esp_err_t esp_apptrace_read(esp_apptrace_dest_t dest, void *buf, uint32_t *size, uint32_t user_tmo)
{
int res = ESP_OK;
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return ESP_ERR_INVALID_ARG;
}
if (buf == NULL || size == NULL || *size == 0) {
return ESP_ERR_INVALID_ARG;
}
if (!s_inited) {
return ESP_ERR_INVALID_STATE;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return ESP_ERR_NOT_SUPPORTED;
}
if (ch->hw->get_down_buffer == NULL || ch->hw->put_down_buffer == NULL) {
return ESP_ERR_NOT_SUPPORTED;
}
//TODO: callback system
esp_apptrace_tmo_init(&tmo, user_tmo);
uint32_t act_sz = *size;
*size = 0;
uint8_t *ptr = ch->hw->get_down_buffer(ch->hw_data, &act_sz, &tmo);
if (ptr && act_sz > 0) {
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ESP_APPTRACE_LOGD("Read %" PRIu32 " bytes from host", act_sz);
memcpy(buf, ptr, act_sz);
res = ch->hw->put_down_buffer(ch->hw_data, ptr, &tmo);
*size = act_sz;
} else {
res = ESP_ERR_TIMEOUT;
}
return res;
}
uint8_t *esp_apptrace_buffer_get(esp_apptrace_dest_t dest, uint32_t size, uint32_t user_tmo)
{
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return NULL;
}
if (size == 0) {
return NULL;
}
if (!s_inited) {
return NULL;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return NULL;
}
if (ch->hw->get_up_buffer == NULL) {
return NULL;
}
esp_apptrace_tmo_init(&tmo, user_tmo);
return ch->hw->get_up_buffer(ch->hw_data, size, &tmo);
}
esp_err_t esp_apptrace_buffer_put(esp_apptrace_dest_t dest, uint8_t *ptr, uint32_t user_tmo)
{
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return ESP_ERR_INVALID_ARG;
}
if (ptr == NULL) {
return ESP_ERR_INVALID_ARG;
}
if (!s_inited) {
return ESP_ERR_INVALID_STATE;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return ESP_ERR_NOT_SUPPORTED;
}
if (ch->hw->put_up_buffer == NULL) {
return ESP_ERR_NOT_SUPPORTED;
}
esp_apptrace_tmo_init(&tmo, user_tmo);
return ch->hw->put_up_buffer(ch->hw_data, ptr, &tmo);
}
esp_err_t esp_apptrace_write(esp_apptrace_dest_t dest, const void *data, uint32_t size, uint32_t user_tmo)
{
uint8_t *ptr = NULL;
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return ESP_ERR_INVALID_ARG;
}
if (data == NULL || size == 0) {
return ESP_ERR_INVALID_ARG;
}
if (!s_inited) {
return ESP_ERR_INVALID_STATE;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return ESP_ERR_NOT_SUPPORTED;
}
if (ch->hw->get_up_buffer == NULL || ch->hw->put_up_buffer == NULL) {
return ESP_ERR_NOT_SUPPORTED;
}
esp_apptrace_tmo_init(&tmo, user_tmo);
ptr = ch->hw->get_up_buffer(ch->hw_data, size, &tmo);
if (ptr == NULL) {
return ESP_ERR_NO_MEM;
}
// actually can be suspended here by higher prio tasks/ISRs
//TODO: use own memcpy with dead trace calls kick-off algo and tmo expiration check
memcpy(ptr, data, size);
// now indicate that this buffer is ready to be sent off to host
return ch->hw->put_up_buffer(ch->hw_data, ptr, &tmo);
}
int esp_apptrace_vprintf_to(esp_apptrace_dest_t dest, uint32_t user_tmo, const char *fmt, va_list ap)
{
uint16_t nargs = 0;
uint8_t *pout, *p = (uint8_t *)fmt;
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return -1;
}
if (fmt == NULL) {
return -1;
}
if (!s_inited) {
return -1;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return -1;
}
if (ch->hw->get_up_buffer == NULL || ch->hw->put_up_buffer == NULL) {
return -1;
}
esp_apptrace_tmo_init(&tmo, user_tmo);
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ESP_APPTRACE_LOGD("fmt %p", fmt);
while ((p = (uint8_t *)strchr((char *)p, '%')) && nargs < ESP_APPTRACE_MAX_VPRINTF_ARGS) {
p++;
if (*p != '%' && *p != 0) {
nargs++;
}
}
ESP_APPTRACE_LOGD("nargs = %d", nargs);
if (p) {
ESP_APPTRACE_LOGE("Failed to store all printf args!");
}
pout = ch->hw->get_up_buffer(ch->hw_data, 1 + sizeof(char *) + nargs * sizeof(uint32_t), &tmo);
if (pout == NULL) {
ESP_APPTRACE_LOGE("Failed to get buffer!");
return -1;
}
p = pout;
*pout = nargs;
pout++;
*(const char **)pout = fmt;
pout += sizeof(char *);
while (nargs-- > 0) {
uint32_t arg = va_arg(ap, uint32_t);
*(uint32_t *)pout = arg;
pout += sizeof(uint32_t);
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ESP_APPTRACE_LOGD("arg %" PRIx32, arg);
}
int ret = ch->hw->put_up_buffer(ch->hw_data, p, &tmo);
if (ret != ESP_OK) {
ESP_APPTRACE_LOGE("Failed to put printf buf (%d)!", ret);
return -1;
}
return (pout - p);
}
int esp_apptrace_vprintf(const char *fmt, va_list ap)
{
return esp_apptrace_vprintf_to(ESP_APPTRACE_DEST_JTAG, 0, fmt, ap);
}
esp_err_t esp_apptrace_flush_nolock(esp_apptrace_dest_t dest, uint32_t min_sz, uint32_t usr_tmo)
{
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return ESP_ERR_INVALID_ARG;
}
if (!s_inited) {
return ESP_ERR_INVALID_STATE;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return ESP_ERR_NOT_SUPPORTED;
}
if (ch->hw->flush_up_buffer_nolock == NULL) {
return ESP_ERR_NOT_SUPPORTED;
}
esp_apptrace_tmo_init(&tmo, usr_tmo);
return ch->hw->flush_up_buffer_nolock(ch->hw_data, min_sz, &tmo);
}
esp_err_t esp_apptrace_flush(esp_apptrace_dest_t dest, uint32_t usr_tmo)
{
esp_apptrace_tmo_t tmo;
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return ESP_ERR_INVALID_ARG;
}
if (!s_inited) {
return ESP_ERR_INVALID_STATE;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return ESP_ERR_NOT_SUPPORTED;
}
if (ch->hw->flush_up_buffer == NULL) {
return ESP_ERR_NOT_SUPPORTED;
}
esp_apptrace_tmo_init(&tmo, usr_tmo);
return ch->hw->flush_up_buffer(ch->hw_data, &tmo);
}
bool esp_apptrace_host_is_connected(esp_apptrace_dest_t dest)
{
esp_apptrace_channel_t *ch;
ESP_APPTRACE_LOGV("%s(): enter", __func__);
if (dest >= ESP_APPTRACE_DEST_MAX) {
return false;
}
if (!s_inited) {
return false;
}
ch = &s_trace_channels[dest];
if (ch->hw == NULL) {
ESP_APPTRACE_LOGE("Trace destination %d not supported!", dest);
return false;
}
if (ch->hw->host_is_connected == NULL) {
return false;
}
return ch->hw->host_is_connected(ch->hw_data);
}
#if !CONFIG_APPTRACE_DEST_JTAG
esp_apptrace_hw_t *esp_apptrace_jtag_hw_get(void **data)
{
return NULL;
}
#endif