kopia lustrzana https://github.com/espressif/esp-idf
246 wiersze
8.0 KiB
C
246 wiersze
8.0 KiB
C
/* HTTP File Server 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 <sys/unistd.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "esp_system.h"
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#include "esp_spiffs.h"
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#include "esp_netif.h"
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#include "esp_err.h"
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#include "esp_vfs_fat.h"
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#include "nvs_flash.h"
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#include "protocol_examples_common.h"
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#include "sdkconfig.h"
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#include "driver/sdspi_host.h"
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#include "driver/spi_common.h"
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#include "sdmmc_cmd.h"
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#include "soc/soc_caps.h"
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#if SOC_SDMMC_HOST_SUPPORTED
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#include "driver/sdmmc_host.h"
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#endif
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/* This example demonstrates how to create file server
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* using esp_http_server. This file has only startup code.
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* Look in file_server.c for the implementation */
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#define MOUNT_POINT "/sdcard"
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static const char *TAG="example";
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/* ESP32-S2/C3 doesn't have an SD Host peripheral, always use SPI,
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* ESP32 can choose SPI or SDMMC Host, SPI is used by default: */
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#ifndef CONFIG_EXAMPLE_USE_SDMMC_HOST
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#define USE_SPI_MODE
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#endif
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// DMA channel to be used by the SPI peripheral
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#if CONFIG_IDF_TARGET_ESP32
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#define SPI_DMA_CHAN 1
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// on ESP32-S2, DMA channel must be the same as host id
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#elif CONFIG_IDF_TARGET_ESP32S2
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#define SPI_DMA_CHAN host.slot
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#elif CONFIG_IDF_TARGET_ESP32C3
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// on ESP32-C3, DMA channels are shared with all other peripherals
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#define SPI_DMA_CHAN 1
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#endif //CONFIG_IDF_TARGET_ESP32
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// When testing SD and SPI modes, keep in mind that once the card has been
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// initialized in SPI mode, it can not be reinitialized in SD mode without
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// toggling power to the card.
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#ifdef CONFIG_EXAMPLE_MOUNT_SD_CARD
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static sdmmc_card_t* mount_card = NULL;
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static char * mount_base_path = MOUNT_POINT;
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#endif
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#ifdef USE_SPI_MODE
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// Pin mapping when using SPI mode.
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// With this mapping, SD card can be used both in SPI and 1-line SD mode.
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// Note that a pull-up on CS line is required in SD mode.
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#if CONFIG_IDF_TARGET_ESP32C3
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#define PIN_NUM_MISO 2
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#define PIN_NUM_MOSI 7
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#define PIN_NUM_CLK 6
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#define PIN_NUM_CS 10
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#else
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#define PIN_NUM_MISO 2
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#define PIN_NUM_MOSI 15
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#define PIN_NUM_CLK 14
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#define PIN_NUM_CS 13
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#endif // CONFIG_IDF_TARGET_ESP32C3
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#endif //USE_SPI_MODE
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/* Function to initialize SPIFFS */
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static esp_err_t init_spiffs(void)
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{
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ESP_LOGI(TAG, "Initializing SPIFFS");
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esp_vfs_spiffs_conf_t conf = {
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.base_path = "/spiffs",
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.partition_label = NULL,
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.max_files = 5, // This decides the maximum number of files that can be created on the storage
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.format_if_mount_failed = true
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};
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esp_err_t ret = esp_vfs_spiffs_register(&conf);
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if (ret != ESP_OK) {
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if (ret == ESP_FAIL) {
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ESP_LOGE(TAG, "Failed to mount or format filesystem");
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} else if (ret == ESP_ERR_NOT_FOUND) {
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ESP_LOGE(TAG, "Failed to find SPIFFS partition");
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} else {
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ESP_LOGE(TAG, "Failed to initialize SPIFFS (%s)", esp_err_to_name(ret));
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}
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return ESP_FAIL;
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}
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size_t total = 0, used = 0;
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ret = esp_spiffs_info(NULL, &total, &used);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Failed to get SPIFFS partition information (%s)", esp_err_to_name(ret));
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return ESP_FAIL;
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}
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ESP_LOGI(TAG, "Partition size: total: %d, used: %d", total, used);
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return ESP_OK;
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}
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/* Declare the function which starts the file server.
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* Implementation of this function is to be found in
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* file_server.c */
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esp_err_t start_file_server(const char *base_path);
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#ifdef CONFIG_EXAMPLE_MOUNT_SD_CARD
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void sdcard_mount(void)
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{
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/*sd_card part code*/
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esp_vfs_fat_sdmmc_mount_config_t mount_config = {
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#ifdef CONFIG_EXAMPLE_FORMAT_IF_MOUNT_FAILED
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.format_if_mount_failed = true,
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#else
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.format_if_mount_failed = false,
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#endif // EXAMPLE_FORMAT_IF_MOUNT_FAILED
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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(TAG, "Initializing SD card");
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#ifndef USE_SPI_MODE
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ESP_LOGI(TAG, "Using SDMMC peripheral");
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sdmmc_host_t host = SDMMC_HOST_DEFAULT();
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// This initializes the slot without card detect (CD) and write protect (WP) signals.
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// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
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sdmmc_slot_config_t slot_config = SDMMC_SLOT_CONFIG_DEFAULT();
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// To use 1-line SD mode, uncomment the following line:
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// slot_config.width = 1;
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// GPIOs 15, 2, 4, 12, 13 should have external 10k pull-ups.
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// Internal pull-ups are not sufficient. However, enabling internal pull-ups
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// does make a difference some boards, so we do that here.
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gpio_set_pull_mode(15, GPIO_PULLUP_ONLY); // CMD, needed in 4- and 1- line modes
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gpio_set_pull_mode(2, GPIO_PULLUP_ONLY); // D0, needed in 4- and 1-line modes
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gpio_set_pull_mode(4, GPIO_PULLUP_ONLY); // D1, needed in 4-line mode only
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gpio_set_pull_mode(12, GPIO_PULLUP_ONLY); // D2, needed in 4-line mode only
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gpio_set_pull_mode(13, GPIO_PULLUP_ONLY); // D3, needed in 4- and 1-line modes
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esp_err_t ret = esp_vfs_fat_sdmmc_mount(mount_point, &host, &slot_config, &mount_config, &card);
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#else
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ESP_LOGI(TAG, "Using SPI peripheral");
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sdmmc_host_t host = SDSPI_HOST_DEFAULT();
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spi_bus_config_t bus_cfg = {
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.mosi_io_num = PIN_NUM_MOSI,
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.miso_io_num = PIN_NUM_MISO,
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.sclk_io_num = PIN_NUM_CLK,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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.max_transfer_sz = 4000,
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};
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esp_err_t ret = spi_bus_initialize(host.slot, &bus_cfg, SPI_DMA_CHAN);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Failed to initialize bus.");
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ESP_ERROR_CHECK(ret);
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}
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// This initializes the slot without card detect (CD) and write protect (WP) signals.
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// Modify slot_config.gpio_cd and slot_config.gpio_wp if your board has these signals.
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sdspi_device_config_t slot_config = SDSPI_DEVICE_CONFIG_DEFAULT();
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slot_config.gpio_cs = PIN_NUM_CS;
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slot_config.host_id = host.slot;
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ret = esp_vfs_fat_sdspi_mount(mount_point, &host, &slot_config, &mount_config, &card);
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mount_card = card;
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#endif //USE_SPI_MODE
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if(ret != ESP_OK){
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if (ret == ESP_FAIL) {
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ESP_LOGE(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(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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}
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ESP_ERROR_CHECK(ret);
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}
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sdmmc_card_print_info(stdout, card);
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}
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static esp_err_t unmount_card(const char* base_path, sdmmc_card_t* card)
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{
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#ifdef USE_SPI_MODE
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esp_err_t err = esp_vfs_fat_sdcard_unmount(base_path, card);
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#else
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esp_err_t err = esp_vfs_fat_sdmmc_unmount();
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#endif
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ESP_ERROR_CHECK(err);
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#ifdef USE_SPI_MODE
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sdmmc_host_t host = SDSPI_HOST_DEFAULT();
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err = spi_bus_free(host.slot);
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#endif
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ESP_ERROR_CHECK(err);
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return err;
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}
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#endif //CONFIG_EXAMPLE_MOUNT_SD_CARD
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void app_main(void)
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{
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/*Mount the SDcard first if needed.*/
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#ifdef CONFIG_EXAMPLE_MOUNT_SD_CARD
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sdcard_mount();
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#endif
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ESP_ERROR_CHECK(nvs_flash_init());
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
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* Read "Establishing Wi-Fi or Ethernet Connection" section in
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* examples/protocols/README.md for more information about this function.
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*/
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ESP_ERROR_CHECK(example_connect());
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/* Initialize file storage */
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ESP_ERROR_CHECK(init_spiffs());
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/* Start the file server */
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ESP_ERROR_CHECK(start_file_server("/spiffs"));
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#ifdef CONFIG_EXAMPLE_MOUNT_SD_CARD
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//deinitialize the bus after all devices are removed
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ESP_ERROR_CHECK(unmount_card(mount_base_path, mount_card));
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#endif
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}
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