244 lines
6.6 KiB
C
244 lines
6.6 KiB
C
/**
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* @file FluxSD.c
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* @brief SD卡源文件
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*
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* 用于存储测试日志
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*
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* @author wang xiang en
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* @date 2025-04-18
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* @version 版本号
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* @copyright 版权声明（(C)2025, YUWELL MEDTECH Co.ltd）
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*/
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#include "FluxSD.h"
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/* SD卡配置 */
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const static char *SD_TAG = "SD_TEST";
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const char* names[] = {"CLK", "CMD", "D0", "D1", "D2", "D3"};
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const int pins[] = {CONFIG_EXAMPLE_PIN_CLK,
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CONFIG_EXAMPLE_PIN_CMD,
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CONFIG_EXAMPLE_PIN_D0,
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CONFIG_EXAMPLE_PIN_D1,
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CONFIG_EXAMPLE_PIN_D2,
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CONFIG_EXAMPLE_PIN_D3
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};
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const int pin_count = sizeof(pins)/sizeof(pins[0]);
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pin_configuration_t config = {
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.names = names,
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.pins = pins,
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};
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/* 用于存储 SD 卡信息 */
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uint64_t total_bytes = 0;
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uint64_t free_bytes = 0;
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float free_percent = 0;
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/**
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* @brief 等待SD引脚状态改变
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*
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* SD卡引脚检测子函数
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*
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* @param[in] i 序号值
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* @param[in] level 检测的电平
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* @param[in] timeout 超时时间
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* @return 返回值说明
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*/
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static uint32_t get_cycles_until_pin_level(int i, int level, int timeout) {
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uint32_t start = esp_cpu_get_cycle_count();
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while(gpio_get_level(i) == !level && esp_cpu_get_cycle_count() - start < timeout) {
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;
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}
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uint32_t end = esp_cpu_get_cycle_count();
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return end - start;
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}
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/**
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* @brief SD卡引脚检测
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*
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* 测试SD卡引脚驱动能力及配置情况
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*
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* @param[in] config 配置情况
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* @param[in] pin_count 引脚数目
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*/
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static void check_sd_card_pins(pin_configuration_t *config, const int pin_count)
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{
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ESP_LOGI(SD_TAG, "Testing SD pin connections and pullup strength");
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gpio_config_t io_conf = {};
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for (int i = 0; i < pin_count; ++i) {
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io_conf.intr_type = GPIO_INTR_DISABLE;
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io_conf.mode = GPIO_MODE_INPUT_OUTPUT_OD;
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io_conf.pin_bit_mask = GPIO_INPUT_PIN_SEL(config->pins[i]);
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io_conf.pull_down_en = 0;
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io_conf.pull_up_en = 0;
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gpio_config(&io_conf);
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}
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printf("\n**** PIN recovery time ****\n\n");
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for (int i = 0; i < pin_count; ++i) {
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gpio_set_direction(config->pins[i], GPIO_MODE_INPUT_OUTPUT_OD);
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gpio_set_level(config->pins[i], 0);
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usleep(100);
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gpio_set_level(config->pins[i], 1);
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uint32_t cycles = get_cycles_until_pin_level(config->pins[i], 1, 10000);
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printf("PIN %2d %3s %"PRIu32" cycles\n", config->pins[i], config->names[i], cycles);
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}
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printf("\n**** PIN recovery time with weak pullup ****\n\n");
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for (int i = 0; i < pin_count; ++i) {
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gpio_set_direction(config->pins[i], GPIO_MODE_INPUT_OUTPUT_OD);
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gpio_pullup_en(config->pins[i]);
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gpio_set_level(config->pins[i], 0);
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usleep(100);
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gpio_set_level(config->pins[i], 1);
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uint32_t cycles = get_cycles_until_pin_level(config->pins[i], 1, 10000);
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printf("PIN %2d %3s %"PRIu32" cycles\n", config->pins[i], config->names[i], cycles);
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gpio_pullup_dis(config->pins[i]);
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}
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}
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/**
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* @brief SD卡写测试
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*
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* 向特定路径写入一段字符串
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*
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* @param[in] path 需要写入的路径
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* @param[in] data 要写入的数据
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*/
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static esp_err_t s_example_write_file(const char *path, char *data)
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{
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ESP_LOGI(SD_TAG, "Opening file %s", path);
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FILE *f = fopen(path, "a");
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if (f == NULL) {
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ESP_LOGE(SD_TAG, "Failed to open file for writing");
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return ESP_FAIL;
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}
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fprintf(f, data);
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fclose(f);
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ESP_LOGI(SD_TAG, "File written");
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return ESP_OK;
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}
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/**
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* @brief 向SD卡中写入日志
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*
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* 向已定路径写入一段字符串
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*
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* @param[in] data 要写入的数据
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*/
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esp_err_t s_example_write_log(char *data)
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{
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ESP_LOGI(SD_TAG, "Opening file %s", "/sdcard/log.txt");
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FILE *f = fopen("/sdcard/log.txt", "a+");
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if (f == NULL) {
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ESP_LOGE(SD_TAG, "Failed to open file for writing");
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return ESP_FAIL;
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}
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fprintf(f, data);
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fclose(f);
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ESP_LOGI(SD_TAG, "File written");
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return ESP_OK;
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}
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/**
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* @brief SD卡读测试
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*
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* 读取一段字符串
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*
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* @param[in] path 读取的文件所在的路径
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*/
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static esp_err_t s_example_read_file(const char *path)
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{
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ESP_LOGI(SD_TAG, "Reading file %s", path);
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FILE *f = fopen(path, "r");
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if (f == NULL) {
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ESP_LOGE(SD_TAG, "Failed to open file for reading");
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return ESP_FAIL;
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}
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char line[EXAMPLE_MAX_CHAR_SIZE];
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fgets(line, sizeof(line), f);
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//fread(line, sizeof(line), f);
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fclose(f);
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// strip newline
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char *pos = strchr(line, '\n');
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if (pos) {
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*pos = '\0';
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}
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ESP_LOGI(SD_TAG, "Read from file: '%s'", line);
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return ESP_OK;
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}
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/**
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* @brief SD卡初始化
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*
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* 初始化SD读写总线，将文件系统挂载到固定挂载点。
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*
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*/
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void flux_sd_init(void)
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{
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esp_err_t ret;
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esp_vfs_fat_sdmmc_mount_config_t mount_config = {
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.format_if_mount_failed = true,
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.max_files = 5,
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.allocation_unit_size = 16 * 1024
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};
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sdmmc_card_t *card;
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const char mount_point[] = MOUNT_POINT;
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ESP_LOGI(SD_TAG, "Initializing SD card");
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ESP_LOGI(SD_TAG, "Using SDMMC peripheral");
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sdmmc_host_t host = SDMMC_HOST_DEFAULT();
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sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
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slot_config.width = 4;
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slot_config.clk = CONFIG_EXAMPLE_PIN_CLK;
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slot_config.cmd = CONFIG_EXAMPLE_PIN_CMD;
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slot_config.d0 = CONFIG_EXAMPLE_PIN_D0;
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slot_config.d1 = CONFIG_EXAMPLE_PIN_D1;
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slot_config.d2 = CONFIG_EXAMPLE_PIN_D2;
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slot_config.d3 = CONFIG_EXAMPLE_PIN_D3;
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slot_config.flags |= SDMMC_SLOT_FLAG_INTERNAL_PULLUP;
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ESP_LOGI(SD_TAG, "Mounting filesystem");
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ret = esp_vfs_fat_sdmmc_mount(mount_point, &host, &slot_config, &mount_config, &card);
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if (ret != ESP_OK) {
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if (ret == ESP_FAIL) {
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ESP_LOGE(SD_TAG, "Failed to mount filesystem. "
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"If you want the card to be formatted, set the EXAMPLE_FORMAT_IF_MOUNT_FAILED menuconfig option.");
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} else {
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ESP_LOGE(SD_TAG, "Failed to initialize the card (%s). "
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"Make sure SD card lines have pull-up resistors in place.", esp_err_to_name(ret));
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check_sd_card_pins(&config, pin_count);
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}
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return;
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}
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ESP_LOGI(SD_TAG, "Filesystem mounted");
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/* 打印SD卡信息 */
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sdmmc_card_print_info(stdout, card);
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#ifdef CONFIG_WRITE_TEST
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/* File write test example */
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const char *file_hello = MOUNT_POINT"/hello.txt";
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char data[EXAMPLE_MAX_CHAR_SIZE];
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snprintf(data, EXAMPLE_MAX_CHAR_SIZE, "%s %s!\n", "Hello how are you", card->cid.name);
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ret = s_example_write_file(file_hello, data);
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if (ret != ESP_OK) {
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return;
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}
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#endif
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} |