xtensa: move out trax

components/app_trace/app_trace.c

@@ -159,14 +159,15 @@
 #include "sdkconfig.h"
 #include "soc/soc.h"
 #include "soc/dport_access.h"
-#if CONFIG_IDF_TARGET_ESP32
+#if !CONFIG_IDF_TARGET_ESP32C3
 #include "soc/dport_reg.h"
-#elif CONFIG_IDF_TARGET_ESP32S2
+#endif
+#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
 #include "soc/sensitive_reg.h"
 #endif
 #if __XTENSA__
+#include "xtensa-debug-module.h"
 #include "eri.h"
-#include "trax.h"
 #endif
 #include "soc/timer_periph.h"
 #include "freertos/FreeRTOS.h"
@@ -210,18 +211,6 @@ const static char *TAG = "esp_apptrace";
 #define ESP_APPTRACE_LOGV( format, ... )  ESP_APPTRACE_LOG_LEV(V, ESP_LOG_VERBOSE, format, ##__VA_ARGS__)
 #define ESP_APPTRACE_LOGO( format, ... )  ESP_APPTRACE_LOG_LEV(E, ESP_LOG_NONE, format, ##__VA_ARGS__)
 
-// TODO: move these (and same definitions in trax.c to dport_reg.h)
-#if CONFIG_IDF_TARGET_ESP32
-#define TRACEMEM_MUX_PROBLK0_APPBLK1            0
-#define TRACEMEM_MUX_BLK0_ONLY                  1
-#define TRACEMEM_MUX_BLK1_ONLY                  2
-#define TRACEMEM_MUX_PROBLK1_APPBLK0            3
-#elif CONFIG_IDF_TARGET_ESP32S2
-#define TRACEMEM_MUX_BLK0_NUM                   19
-#define TRACEMEM_MUX_BLK1_NUM                   20
-#define TRACEMEM_BLK_NUM2ADDR(_n_)              (0x3FFB8000UL + 0x4000UL*((_n_)-4))
-#endif
-
 // TRAX is disabled, so we use its registers for our own purposes
 // | 31..XXXXXX..24 | 23 .(host_connect). 23 | 22 .(host_data). 22| 21..(block_id)..15 | 14..(block_len)..0 |
 #define ESP_APPTRACE_TRAX_CTRL_REG              ERI_TRAX_DELAYCNT

components/esp_system/port/arch/xtensa/trax.c

@@ -0,0 +1,88 @@
+
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stdio.h>
+#include "esp_err.h"
+#include "esp_log.h"
+#include "xt_trax.h"
+#include "trax.h"
+#include "hal/trace_ll.h"
+#include "soc/dport_reg.h"
+#include "sdkconfig.h"
+
+// Utility functions for enabling TRAX in early startup (hence the use
+// of ESP_EARLY_LOGX) in Xtensa targets.
+
+#if defined(CONFIG_ESP32_TRAX) || defined(CONFIG_ESP32S2_TRAX)
+#define WITH_TRAX 1
+#endif
+
+static const char* __attribute__((unused)) TAG = "trax";
+
+int trax_enable(trax_ena_select_t which)
+{
+#if !WITH_TRAX
+    ESP_EARLY_LOGE(TAG, "trax_enable called, but trax is disabled in menuconfig!");
+    return ESP_ERR_NO_MEM;
+#endif
+#if CONFIG_IDF_TARGET_ESP32
+#ifndef CONFIG_ESP32_TRAX_TWOBANKS
+    if (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP) return ESP_ERR_NO_MEM;
+#endif
+    if (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP) {
+        trace_ll_set_mode((which == TRAX_ENA_PRO_APP_SWAP)?TRACEMEM_MUX_PROBLK1_APPBLK0:TRACEMEM_MUX_PROBLK0_APPBLK1);
+    } else {
+        trace_ll_set_mode(TRACEMEM_MUX_BLK0_ONLY);
+    }
+    trace_ll_mem_enable(0, (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP || which == TRAX_ENA_PRO));
+    trace_ll_mem_enable(1, (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP || which == TRAX_ENA_APP));
+    return ESP_OK;
+#elif CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
+    if (which != TRAX_ENA_PRO) {
+        return ESP_ERR_INVALID_ARG;
+    }
+    trace_ll_set_mem_block(TRACEMEM_MUX_BLK1_NUM);
+    return ESP_OK;
+#endif
+}
+
+int trax_start_trace(trax_downcount_unit_t units_until_stop)
+{
+#if !WITH_TRAX
+    ESP_EARLY_LOGE(TAG, "trax_start_trace called, but trax is disabled in menuconfig!");
+    return ESP_ERR_NO_MEM;
+#endif
+    if (xt_trax_trace_is_active()) {
+        ESP_EARLY_LOGI(TAG, "Stopping active trace first.");
+        //Trace is active. Stop trace.
+        xt_trax_trigger_traceend_after_delay(0);
+    }
+    if (units_until_stop == TRAX_DOWNCOUNT_INSTRUCTIONS) {
+        xt_trax_start_trace_instructions();
+    } else {
+        xt_trax_start_trace_words();
+    }
+    return ESP_OK;
+}
+
+int trax_trigger_traceend_after_delay(int delay)
+{
+#if !WITH_TRAX
+    ESP_EARLY_LOGE(TAG, "trax_trigger_traceend_after_delay called, but trax is disabled in menuconfig!");
+    return ESP_ERR_NO_MEM;
+#endif
+    xt_trax_trigger_traceend_after_delay(delay);
+    return ESP_OK;
+}

components/esp_system/port/include/trax.h

@@ -1,8 +1,22 @@
+// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 #include "sdkconfig.h"
 #include "esp_err.h"
 #include "eri.h"
 #include "xtensa-debug-module.h"
-
+#include "xt_trax.h"
 
 typedef enum {
     TRAX_DOWNCOUNT_WORDS,
@@ -17,7 +31,6 @@ typedef enum {
     TRAX_ENA_PRO_APP_SWAP
 } trax_ena_select_t;
 
-
 /**
  * @brief  Enable the trax memory blocks to be used as Trax memory.
  *

components/esp_system/port/soc/esp32/CMakeLists.txt

@@ -7,6 +7,7 @@ set(srcs "dport_panic_highint_hdl.S"
          "../../arch/xtensa/expression_with_stack_asm.S"
          "../../arch/xtensa/debug_helpers.c"
          "../../arch/xtensa/debug_helpers_asm.S"
+         "../../arch/xtensa/trax.c"
          )
 add_prefix(srcs "${CMAKE_CURRENT_LIST_DIR}/" ${srcs})
 

components/esp_system/port/soc/esp32s2/CMakeLists.txt

@@ -8,6 +8,7 @@ set(srcs "async_memcpy_impl_cp_dma.c"
          "../../arch/xtensa/expression_with_stack_asm.S"
          "../../arch/xtensa/debug_helpers.c"
          "../../arch/xtensa/debug_helpers_asm.S"
+         "../../arch/xtensa/trax.c"
          )
 add_prefix(srcs "${CMAKE_CURRENT_LIST_DIR}/" ${srcs})
 

components/esp_system/port/soc/esp32s3/CMakeLists.txt

@@ -8,6 +8,7 @@ set(srcs "dport_panic_highint_hdl.S"
          "../../arch/xtensa/expression_with_stack_asm.S"
          "../../arch/xtensa/debug_helpers.c"
          "../../arch/xtensa/debug_helpers_asm.S"
+         "../../arch/xtensa/trax.c"
          )
 add_prefix(srcs "${CMAKE_CURRENT_LIST_DIR}/" ${srcs})
 

components/hal/esp32/include/hal/trace_ll.h

@@ -0,0 +1,28 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "soc/dport_reg.h"
+
+static inline void trace_ll_mem_enable(int cpu, bool enable)
+{
+    int reg[] = {DPORT_PRO_TRACEMEM_ENA_REG, DPORT_APP_TRACEMEM_ENA_REG};
+    DPORT_WRITE_PERI_REG(reg[cpu], enable);
+}
+
+static inline void trace_ll_set_mode(int mode)
+{
+    DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, mode);
+}

components/hal/esp32s2/include/hal/trace_ll.h

@@ -0,0 +1,23 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include "esp_bit_defs.h"
+#include "soc/dport_reg.h"
+
+static inline void trace_ll_set_mem_block(int block)
+{
+    DPORT_WRITE_PERI_REG(DPORT_PMS_OCCUPY_3_REG, BIT(block-4));
+}

components/hal/esp32s3/include/hal/trace_ll.h

@@ -0,0 +1,24 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+#include <stdlib.h>
+
+#include "soc/dport_reg.h"
+
+static inline void trace_ll_set_mem_block(int block)
+{
+    // IDF-1785
+    abort();
+}

components/soc/esp32/include/soc/dport_reg.h

@@ -4281,4 +4281,9 @@
 
 #define DPORT_MMU_ADDRESS_MASK 0xff
 
+#define TRACEMEM_MUX_PROBLK0_APPBLK1    0
+#define TRACEMEM_MUX_BLK0_ONLY          1
+#define TRACEMEM_MUX_BLK1_ONLY          2
+#define TRACEMEM_MUX_PROBLK1_APPBLK0    3
+
 #endif /*_SOC_DPORT_REG_H_ */

components/soc/esp32s2/include/soc/dport_reg.h

@@ -25,6 +25,10 @@ extern "C" {
 
 #define DPORT_DATE_REG SYSTEM_DATE_REG
 
+#define TRACEMEM_MUX_BLK0_NUM                   19
+#define TRACEMEM_MUX_BLK1_NUM                   20
+#define TRACEMEM_BLK_NUM2ADDR(_n_)              (0x3FFB8000UL + 0x4000UL*((_n_)-4))
+
 #ifndef __ASSEMBLER__
 #include "dport_access.h"
 #endif

components/soc/esp32s2/include/soc/sensitive_reg.h

@@ -1291,6 +1291,4 @@ extern "C" {
 }
 #endif
 
-
-
 #endif /*_SOC_SENSITIVE_REG_H_ */

components/soc/esp32s3/include/soc/dport_reg.h

@@ -24,6 +24,10 @@ extern "C" {
 
 #define DPORT_DATE_REG SYSTEM_DATE_REG
 
+#define TRACEMEM_MUX_BLK0_NUM                   19
+#define TRACEMEM_MUX_BLK1_NUM                   20
+#define TRACEMEM_BLK_NUM2ADDR(_n_)              (0x3FFB8000UL + 0x4000UL*((_n_)-4))
+
 #ifndef __ASSEMBLER__
 #include "dport_access.h"
 #endif

components/xtensa/CMakeLists.txt

@@ -8,12 +8,10 @@ if(BOOTLOADER_BUILD)
 else()
     set(priv_requires soc freertos)
     set(srcs "eri.c"
-             "trax.c"
+             "xt_trax.c"
              "xtensa_intr.c"
              "xtensa_intr_asm.S"
-             "${target}/trax_init.c"
              )
-
 endif()
 
 idf_component_register(SRCS ${srcs}

components/xtensa/esp32/trax_init.c

@@ -1,46 +0,0 @@
-// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <stdio.h>
-#include "esp_err.h"
-#include "esp_log.h"
-#include "trax.h"
-#include "soc/dport_reg.h"
-#include "sdkconfig.h"
-
-#define TRACEMEM_MUX_PROBLK0_APPBLK1    0
-#define TRACEMEM_MUX_BLK0_ONLY          1
-#define TRACEMEM_MUX_BLK1_ONLY          2
-#define TRACEMEM_MUX_PROBLK1_APPBLK0    3
-
-static const char* __attribute__((unused)) TAG = "trax";
-
-int trax_enable(trax_ena_select_t which)
-{
-#ifndef CONFIG_ESP32_TRAX
-    ESP_LOGE(TAG, "Trax_enable called, but trax is disabled in menuconfig!");
-    return ESP_ERR_NO_MEM;
-#endif
-#ifndef CONFIG_ESP32_TRAX_TWOBANKS
-    if (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP) return ESP_ERR_NO_MEM;
-#endif
-    if (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP) {
-        DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, (which == TRAX_ENA_PRO_APP_SWAP)?TRACEMEM_MUX_PROBLK1_APPBLK0:TRACEMEM_MUX_PROBLK0_APPBLK1);
-    } else {
-        DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, TRACEMEM_MUX_BLK0_ONLY);
-    }
-    DPORT_WRITE_PERI_REG(DPORT_PRO_TRACEMEM_ENA_REG, (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP || which == TRAX_ENA_PRO));
-    DPORT_WRITE_PERI_REG(DPORT_APP_TRACEMEM_ENA_REG, (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP || which == TRAX_ENA_APP));
-    return ESP_OK;
-}

components/xtensa/esp32s2/trax_init.c

@@ -1,38 +0,0 @@
-// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <stdio.h>
-#include "esp_err.h"
-#include "esp_log.h"
-#include "trax.h"
-#include "soc/sensitive_reg.h"
-#include "sdkconfig.h"
-
-#define TRACEMEM_MUX_BLK0_NUM                   19
-#define TRACEMEM_MUX_BLK1_NUM                   20
-
-static const char* __attribute__((unused)) TAG = "trax";
-
-int trax_enable(trax_ena_select_t which)
-{
-#ifndef CONFIG_ESP32S2_TRAX
-    ESP_LOGE(TAG, "Trax_enable called, but trax is disabled in menuconfig!");
-    return ESP_ERR_NO_MEM;
-#endif
-    if (which != TRAX_ENA_PRO) {
-        return ESP_ERR_INVALID_ARG;
-    }
-    REG_WRITE(DPORT_PMS_OCCUPY_3_REG, BIT(TRACEMEM_MUX_BLK1_NUM-4));
-    return ESP_OK;
-}

components/xtensa/esp32s3/trax_init.c

@@ -1,40 +0,0 @@
-// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include <stdio.h>
-#include "esp_attr.h"
-#include "esp_err.h"
-#include "esp_log.h"
-#include "trax.h"
-#include "soc/sensitive_reg.h"
-#include "sdkconfig.h"
-
-#define TRACEMEM_MUX_BLK0_NUM                   19
-#define TRACEMEM_MUX_BLK1_NUM                   20
-
-static const char *__attribute__((unused)) TAG = "trax";
-
-// IDF-1785
-int trax_enable(trax_ena_select_t which)
-{
-#ifndef CONFIG_ESP32S3_TRAX
-    ESP_LOGE(TAG, "Trax_enable called, but trax is disabled in menuconfig!");
-    return ESP_ERR_NO_MEM;
-#endif
-    if (which != TRAX_ENA_PRO) {
-        return ESP_ERR_INVALID_ARG;
-    }
-    // REG_WRITE(DPORT_PMS_OCCUPY_3_REG, BIT(TRACEMEM_MUX_BLK1_NUM-4));
-    return ESP_OK;
-}

components/xtensa/include/xt_trax.h

@@ -0,0 +1,54 @@
+// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <stdbool.h>
+
+#include "eri.h"
+#include "xtensa-debug-module.h"
+
+// Low-level Xtensa TRAX utils
+
+/**
+ * @brief  Start a Trax trace on the current CPU with instructions as unit of delay.
+ * Memory blocks to be used as Trax memory must be enabled before
+ * calling this function, if needed.
+ */
+void xt_trax_start_trace_instructions(void);
+
+/**
+ * @brief  Start a Trax trace on the current CPU with words as unit of delay.
+ * Memory blocks to be used as Trax memory must be enabled before
+ * calling this function, if needed.
+ */
+void xt_trax_start_trace_words(void);
+
+/**
+ * @brief Check if Trax trace is active on current CPU.
+ *
+ * @return bool. Return true if trace is active.
+ */
+bool xt_trax_trace_is_active(void);
+
+/**
+ * @brief  Trigger a Trax trace stop after the indicated delay. If this is called
+ *         before and the previous delay hasn't ended yet, this will overwrite
+ *         that delay with the new value. The delay will always start at the time
+ *         the function is called.
+ *
+ * @param  delay : The delay to stop the trace in, in the unit indicated to
+ *              trax_start_trace. Note: the trace memory has 4K words available.
+ */
+void xt_trax_trigger_traceend_after_delay(int delay);

components/xtensa/xt_trax.c

@@ -13,51 +13,44 @@
 // limitations under the License.
 
 #include <stdio.h>
-#include "esp_log.h"
+#include <stdbool.h>
+
 #include "esp_err.h"
+
 #include "xtensa-debug-module.h"
 #include "eri.h"
-#include "trax.h"
-#include "sdkconfig.h"
 
-#if defined(CONFIG_ESP32_TRAX) || defined(CONFIG_ESP32S2_TRAX)
+bool xt_trax_trace_is_active(void)
-#define WITH_TRAX 1
+{
-#endif
+    return eri_read(ERI_TRAX_TRAXSTAT)&TRAXSTAT_TRACT;
-
+}
-static const char* TAG = "trax";
+
-
+static void _xt_trax_start_trace(bool instructions)
-
-int trax_start_trace(trax_downcount_unit_t units_until_stop)
 {
-#if !WITH_TRAX
-    ESP_EARLY_LOGE(TAG, "Trax_start_trace called, but trax is disabled in menuconfig!");
-    return ESP_ERR_NO_MEM;
-#endif
     uint32_t v;
-    if (eri_read(ERI_TRAX_TRAXSTAT)&TRAXSTAT_TRACT) {
-        ESP_EARLY_LOGI(TAG, "Stopping active trace first.");
-        //Trace is active. Stop trace.
-        eri_write(ERI_TRAX_DELAYCNT, 0);
-        eri_write(ERI_TRAX_TRAXCTRL, eri_read(ERI_TRAX_TRAXCTRL)|TRAXCTRL_TRSTP);
-        //ToDo: This will probably trigger a trace done interrupt. ToDo: Fix, but how? -JD
-        eri_write(ERI_TRAX_TRAXCTRL, 0);
-    }
     eri_write(ERI_TRAX_PCMATCHCTRL, 31); //do not stop at any pc match
     v=TRAXCTRL_TREN | TRAXCTRL_TMEN | TRAXCTRL_PTOWS | (1<<TRAXCTRL_SMPER_SHIFT);
-    if (units_until_stop == TRAX_DOWNCOUNT_INSTRUCTIONS) v|=TRAXCTRL_CNTU;
+    if (instructions) {
+        v|=TRAXCTRL_CNTU;
+    }
     //Enable trace. This trace has no stop condition and will just keep on running.
     eri_write(ERI_TRAX_TRAXCTRL, v);
-    return ESP_OK;
 }
 
-
+void xt_trax_start_trace_instructions(void)
-int trax_trigger_traceend_after_delay(int delay)
+{
+    _xt_trax_start_trace(true);
+}
+
+void xt_trax_start_trace_words(void)
+{
+    _xt_trax_start_trace(false);
+}
+
+void xt_trax_trigger_traceend_after_delay(int delay)
 {
-#if !WITH_TRAX
-    ESP_EARLY_LOGE(TAG, "Trax_trigger_traceend_after_delay called, but trax is disabled in menuconfig!");
-    return ESP_ERR_NO_MEM;
-#endif
     eri_write(ERI_TRAX_DELAYCNT, delay);
     eri_write(ERI_TRAX_TRAXCTRL, eri_read(ERI_TRAX_TRAXCTRL)|TRAXCTRL_TRSTP);
-    return ESP_OK;
+    //ToDo: This will probably trigger a trace done interrupt. ToDo: Fix, but how? -JD
+    eri_write(ERI_TRAX_TRAXCTRL, 0);
 }