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+/* USB console example
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+
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+ This example code is in the Public Domain (or CC0 licensed, at your option.)
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+
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+ Unless required by applicable law or agreed to in writing, this
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+ software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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+ CONDITIONS OF ANY KIND, either express or implied.
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+*/
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+
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+#include <stdio.h>
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+#include <string.h>
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+#include <fcntl.h>
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+#include "esp_system.h"
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+#include "esp_log.h"
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+#include "esp_console.h"
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+#include "linenoise/linenoise.h"
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+#include "argtable3/argtable3.h"
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+#include "cmd_nvs.h"
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+#include "cmd_system.h"
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+#include "esp_vfs_cdcacm.h"
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+#include "nvs.h"
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+#include "nvs_flash.h"
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+
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+static void initialize_nvs(void)
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+{
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+ esp_err_t err = nvs_flash_init();
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+ if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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+ ESP_ERROR_CHECK( nvs_flash_erase() );
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+ err = nvs_flash_init();
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+ }
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+ ESP_ERROR_CHECK(err);
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+}
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+
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+static void initialize_console(void)
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+{
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+ /* Disable buffering on stdin */
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+ setvbuf(stdin, NULL, _IONBF, 0);
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+
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+ /* Minicom, screen, idf_monitor send CR when ENTER key is pressed */
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+ esp_vfs_dev_cdcacm_set_rx_line_endings(ESP_LINE_ENDINGS_CR);
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+ /* Move the caret to the beginning of the next line on '\n' */
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+ esp_vfs_dev_cdcacm_set_tx_line_endings(ESP_LINE_ENDINGS_CRLF);
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+
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+ /* Enable non-blocking mode on stdin and stdout */
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+ fcntl(fileno(stdout), F_SETFL, 0);
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+ fcntl(fileno(stdin), F_SETFL, 0);
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+
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+ /* Initialize the console */
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+ esp_console_config_t console_config = {
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+ .max_cmdline_args = 8,
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+ .max_cmdline_length = 256,
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+#if CONFIG_LOG_COLORS
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+ .hint_color = atoi(LOG_COLOR_CYAN)
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+#endif
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+ };
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+ ESP_ERROR_CHECK( esp_console_init(&console_config) );
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+
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+ /* Configure linenoise line completion library */
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+ /* Enable multiline editing. If not set, long commands will scroll within
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+ * single line.
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+ */
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+ linenoiseSetMultiLine(1);
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+
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+ /* Tell linenoise where to get command completions and hints */
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+ linenoiseSetCompletionCallback(&esp_console_get_completion);
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+ linenoiseSetHintsCallback((linenoiseHintsCallback*) &esp_console_get_hint);
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+
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+ /* Set command history size */
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+ linenoiseHistorySetMaxLen(10);
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+}
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+
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+void app_main(void)
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+{
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+ initialize_nvs();
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+
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+ initialize_console();
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+
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+ /* Register commands */
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+ esp_console_register_help_command();
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+ register_system_common();
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+ register_nvs();
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+
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+ /* Prompt to be printed before each line.
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+ * This can be customized, made dynamic, etc.
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+ */
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+ const char* prompt = LOG_COLOR_I CONFIG_IDF_TARGET "> " LOG_RESET_COLOR;
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+
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+ printf("\n"
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+ "This is an example of ESP-IDF console component.\n"
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+ "Type 'help' to get the list of commands.\n"
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+ "Use UP/DOWN arrows to navigate through command history.\n"
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+ "Press TAB when typing command name to auto-complete.\n");
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+
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+ /* Figure out if the terminal supports escape sequences */
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+ int probe_status = linenoiseProbe();
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+ if (probe_status) { /* zero indicates success */
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+ printf("\n"
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+ "Your terminal application does not support escape sequences.\n"
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+ "Line editing and history features are disabled.\n"
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+ "On Windows, try using Putty instead.\n");
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+ linenoiseSetDumbMode(1);
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+#if CONFIG_LOG_COLORS
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+ /* Since the terminal doesn't support escape sequences,
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+ * don't use color codes in the prompt.
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+ */
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+ prompt = CONFIG_IDF_TARGET "> ";
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+#endif //CONFIG_LOG_COLORS
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+ }
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+
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+ /* Main loop */
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+ while(true) {
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+ /* Get a line using linenoise.
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+ * The line is returned when ENTER is pressed.
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+ */
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+ char* line = linenoise(prompt);
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+ if (line == NULL) { /* Ignore empty lines */
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+ continue;
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+ }
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+ /* Add the command to the history */
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+ linenoiseHistoryAdd(line);
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+
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+ /* Try to run the command */
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+ int ret;
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+ esp_err_t err = esp_console_run(line, &ret);
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+ if (err == ESP_ERR_NOT_FOUND) {
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+ printf("Unrecognized command\n");
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+ } else if (err == ESP_ERR_INVALID_ARG) {
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+ // command was empty
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+ } else if (err == ESP_OK && ret != ESP_OK) {
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+ printf("Command returned non-zero error code: 0x%x (%s)\n", ret, esp_err_to_name(ret));
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+ } else if (err != ESP_OK) {
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+ printf("Internal error: %s\n", esp_err_to_name(err));
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+ }
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+ /* linenoise allocates line buffer on the heap, so need to free it */
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+ linenoiseFree(line);
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+ }
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+}
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Ivan Grokhotkov