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https://github.com/espressif/esp-idf.git
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26a3cb93c7
1. move dport access header files to soc 2. reduce dport register write protection. Only protect read operation
85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdio.h>
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#include "soc/dport_reg.h"
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#include "sdkconfig.h"
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#include "esp_err.h"
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#include "eri.h"
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#include "xtensa-debug-module.h"
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#include "trax.h"
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#include "esp_log.h"
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#define TRACEMEM_MUX_PROBLK0_APPBLK1 0
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#define TRACEMEM_MUX_BLK0_ONLY 1
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#define TRACEMEM_MUX_BLK1_ONLY 2
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#define TRACEMEM_MUX_PROBLK1_APPBLK0 3
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static const char* TAG = "trax";
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int trax_enable(trax_ena_select_t which)
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{
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#if !CONFIG_ESP32_TRAX
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ESP_LOGE(TAG, "Trax_enable called, but trax is disabled in menuconfig!");
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return ESP_ERR_NO_MEM;
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#endif
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#if !CONFIG_ESP32_TRAX_TWOBANKS
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if (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP) return ESP_ERR_NO_MEM;
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#endif
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if (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP) {
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DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, (which == TRAX_ENA_PRO_APP_SWAP)?TRACEMEM_MUX_PROBLK1_APPBLK0:TRACEMEM_MUX_PROBLK0_APPBLK1);
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} else {
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DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, TRACEMEM_MUX_BLK0_ONLY);
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}
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DPORT_WRITE_PERI_REG(DPORT_PRO_TRACEMEM_ENA_REG, (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP || which == TRAX_ENA_PRO));
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DPORT_WRITE_PERI_REG(DPORT_APP_TRACEMEM_ENA_REG, (which == TRAX_ENA_PRO_APP || which == TRAX_ENA_PRO_APP_SWAP || which == TRAX_ENA_APP));
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return ESP_OK;
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}
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int trax_start_trace(trax_downcount_unit_t units_until_stop)
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{
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#if !CONFIG_ESP32_TRAX
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ESP_LOGE(TAG, "Trax_start_trace called, but trax is disabled in menuconfig!");
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return ESP_ERR_NO_MEM;
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#endif
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uint32_t v;
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if (eri_read(ERI_TRAX_TRAXSTAT)&TRAXSTAT_TRACT) {
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ESP_LOGI(TAG, "Stopping active trace first.");
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//Trace is active. Stop trace.
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eri_write(ERI_TRAX_DELAYCNT, 0);
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eri_write(ERI_TRAX_TRAXCTRL, eri_read(ERI_TRAX_TRAXCTRL)|TRAXCTRL_TRSTP);
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//ToDo: This will probably trigger a trace done interrupt. ToDo: Fix, but how? -JD
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eri_write(ERI_TRAX_TRAXCTRL, 0);
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}
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eri_write(ERI_TRAX_PCMATCHCTRL, 31); //do not stop at any pc match
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v=TRAXCTRL_TREN | TRAXCTRL_TMEN | TRAXCTRL_PTOWS | (1<<TRAXCTRL_SMPER_SHIFT);
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if (units_until_stop == TRAX_DOWNCOUNT_INSTRUCTIONS) v|=TRAXCTRL_CNTU;
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//Enable trace. This trace has no stop condition and will just keep on running.
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eri_write(ERI_TRAX_TRAXCTRL, v);
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return ESP_OK;
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}
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int trax_trigger_traceend_after_delay(int delay)
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{
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#if !CONFIG_ESP32_TRAX
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ESP_LOGE(TAG, "Trax_trigger_traceend_after_delay called, but trax is disabled in menuconfig!");
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return ESP_ERR_NO_MEM;
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#endif
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eri_write(ERI_TRAX_DELAYCNT, delay);
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eri_write(ERI_TRAX_TRAXCTRL, eri_read(ERI_TRAX_TRAXCTRL)|TRAXCTRL_TRSTP);
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return ESP_OK;
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}
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