193 lines
6.4 KiB
C
193 lines
6.4 KiB
C
/* i2c-tools example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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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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#include <stdio.h>
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#include <string.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 "esp_vfs_dev.h"
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#include "driver/uart.h"
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#include "linenoise/linenoise.h"
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#include "argtable3/argtable3.h"
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#include "cmd_decl.h"
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#include "esp_vfs_fat.h"
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#include "nvs.h"
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#include "nvs_flash.h"
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#include "sdkconfig.h"
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static const char *TAG = "i2c-tools";
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#if CONFIG_STORE_HISTORY
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#define MOUNT_PATH "/data"
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#define HISTORY_PATH MOUNT_PATH "/history.txt"
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static void initialize_filesystem()
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{
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static wl_handle_t wl_handle;
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const esp_vfs_fat_mount_config_t mount_config = {
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.max_files = 4,
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.format_if_mount_failed = true
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};
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esp_err_t err = esp_vfs_fat_spiflash_mount(MOUNT_PATH, "storage", &mount_config, &wl_handle);
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if (err != ESP_OK) {
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ESP_LOGE(TAG, "Failed to mount FATFS (%s)", esp_err_to_name(err));
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return;
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}
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}
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#endif // CONFIG_STORE_HISTORY
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static void initialize_nvs()
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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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static void initialize_console()
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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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/* Minicom, screen, idf_monitor send CR when ENTER key is pressed */
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esp_vfs_dev_uart_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_uart_set_tx_line_endings(ESP_LINE_ENDINGS_CRLF);
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/* Configure UART. Note that REF_TICK is used so that the baud rate remains
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* correct while APB frequency is changing in light sleep mode.
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*/
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const uart_config_t uart_config = {
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.baud_rate = CONFIG_ESP_CONSOLE_UART_BAUDRATE,
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.data_bits = UART_DATA_8_BITS,
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.parity = UART_PARITY_DISABLE,
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.stop_bits = UART_STOP_BITS_1,
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.use_ref_tick = true
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};
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ESP_ERROR_CHECK(uart_param_config(CONFIG_ESP_CONSOLE_UART_NUM, &uart_config));
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/* Install UART driver for interrupt-driven reads and writes */
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ESP_ERROR_CHECK(uart_driver_install(CONFIG_ESP_CONSOLE_UART_NUM,
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256, 0, 0, NULL, 0));
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/* Tell VFS to use UART driver */
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esp_vfs_dev_uart_use_driver(CONFIG_ESP_CONSOLE_UART_NUM);
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/* Initialize the console */
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esp_console_config_t console_config = {
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.max_cmdline_args = CONFIG_MAX_CMD_ARGUMENTS,
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.max_cmdline_length = CONFIG_MAX_CMD_LENGTH,
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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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/* Configure linenoise line completion library */
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linenoiseSetMultiLine(1);
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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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/* Set command history size */
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linenoiseHistorySetMaxLen(100);
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#if CONFIG_STORE_HISTORY
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/* Load command history from filesystem */
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linenoiseHistoryLoad(HISTORY_PATH);
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#endif
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}
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void app_main()
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{
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initialize_nvs();
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#if CONFIG_STORE_HISTORY
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initialize_filesystem();
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#endif
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initialize_console();
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/* Register commands */
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esp_console_register_help_command();
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register_i2ctools();
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register_system();
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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 "esp32> " LOG_RESET_COLOR;
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printf("\n ==============================================================\n");
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printf(" | Steps to Use i2c-tools on ESP32 |\n");
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printf(" | |\n");
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printf(" | 1. Try 'help', check all supported commands |\n");
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printf(" | 2. Try 'i2cconfig' to configure your I2C bus |\n");
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printf(" | 3. Try 'i2cdetect' to scan devices on the bus |\n");
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printf(" | 4. Try 'i2cget' to get the content of specific register |\n");
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printf(" | 5. Try 'i2cset' to set the value of specific register |\n");
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printf(" | 6. Try 'i2cdump' to dump all the register (Experiment) |\n");
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printf(" | |\n");
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printf(" ==============================================================\n\n");
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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) {
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/* 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 = "esp32> ";
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#endif //CONFIG_LOG_COLORS
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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) {
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/* 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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#if CONFIG_STORE_HISTORY
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/* Save command history to filesystem */
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linenoiseHistorySave(HISTORY_PATH);
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#endif
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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(err));
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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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