de682a13b1
The following commit updates the first half of the the system example README files. Some other changes were also made: * Updated base_mac_address example * Moved contents in GCOV README to GCOV docs * Some *main.c file names updated * Updated example README template
109 lines
4.4 KiB
C
109 lines
4.4 KiB
C
/* Base mac address 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 <stdlib.h>
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#include <string.h>
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#include "esp_log.h"
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#include "esp_system.h"
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#define TAG "BASE_MAC"
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#ifdef CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
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static esp_err_t external_storage_mac_get(uint8_t *mac)
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{
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/* This function simulates getting a base MAC address from external storage
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* by simply setting the base MAC to an arbitrary address. Users should
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* re-implement this function to access external storage (e.g. flash, EEPROM) */
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uint8_t external_storage_mac_addr[6] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 };
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if (mac == NULL) {
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ESP_LOGE(TAG, "The mac parameter is NULL");
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abort();
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}
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memcpy(mac, external_storage_mac_addr, 6);
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return ESP_OK;
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}
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#endif//CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE
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void app_main(void)
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{
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//Get the base MAC address from different sources
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uint8_t base_mac_addr[6] = {0};
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esp_err_t ret = ESP_OK;
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#ifdef CONFIG_BASE_MAC_STORED_EFUSE_BLK3
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//Get base MAC address from EFUSE BLK3
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ret = esp_efuse_mac_get_custom(base_mac_addr);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Failed to get base MAC address from EFUSE BLK3. (%s)", esp_err_to_name(ret));
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#ifdef CONFIG_BASE_MAC_STORED_EFUSE_BLK3_ERROR_ABORT
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ESP_LOGE(TAG, "Aborting");
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abort();
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#else
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ESP_LOGI(TAG, "Defaulting to base MAC address in BLK0 of EFUSE");
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esp_efuse_mac_get_default(base_mac_addr);
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ESP_LOGI(TAG, "Base MAC Address read from EFUSE BLK0");
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#endif//CONFIG_BASE_MAC_STORED_EFUSE_BLK3_ERROR_ABORT
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} else {
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ESP_LOGI(TAG, "Base MAC Address read from EFUSE BLK3");
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}
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#elif defined(CONFIG_BASE_MAC_STORED_OTHER_EXTERNAL_STORAGE)
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//Get base MAC address from other external storage, or set by software
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ret = external_storage_mac_get(base_mac_addr);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Failed to get base MAC address from external storage. (%s)", esp_err_to_name(ret));
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ESP_LOGE(TAG, "Aborting");
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abort();
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} else {
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ESP_LOGI(TAG, "Base MAC Address read from external storage");
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}
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#else
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//Get base MAC address from EFUSE BLK0(default option)
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ret = esp_efuse_mac_get_default(base_mac_addr);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Failed to get base MAC address from EFUSE BLK0. (%s)", esp_err_to_name(ret));
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ESP_LOGE(TAG, "Aborting");
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abort();
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} else {
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ESP_LOGI(TAG, "Base MAC Address read from EFUSE BLK0");
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}
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#endif
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//Set the base MAC address using the retrieved MAC address
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ESP_LOGI(TAG, "Using \"0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\" as base MAC address",
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base_mac_addr[0], base_mac_addr[1], base_mac_addr[2], base_mac_addr[3], base_mac_addr[4], base_mac_addr[5]);
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esp_base_mac_addr_set(base_mac_addr);
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//Get the derived MAC address for each network interface
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uint8_t derived_mac_addr[6] = {0};
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//Get MAC address for WiFi Station interface
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ESP_ERROR_CHECK(esp_read_mac(derived_mac_addr, ESP_MAC_WIFI_STA));
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ESP_LOGI("WIFI_STA MAC", "0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x",
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derived_mac_addr[0], derived_mac_addr[1], derived_mac_addr[2],
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derived_mac_addr[3], derived_mac_addr[4], derived_mac_addr[5]);
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//Get MAC address for SoftAp interface
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ESP_ERROR_CHECK(esp_read_mac(derived_mac_addr, ESP_MAC_WIFI_SOFTAP));
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ESP_LOGI("SoftAP MAC", "0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x",
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derived_mac_addr[0], derived_mac_addr[1], derived_mac_addr[2],
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derived_mac_addr[3], derived_mac_addr[4], derived_mac_addr[5]);
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//Get MAC address for Bluetooth
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ESP_ERROR_CHECK(esp_read_mac(derived_mac_addr, ESP_MAC_BT));
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ESP_LOGI("BT MAC", "0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x",
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derived_mac_addr[0], derived_mac_addr[1], derived_mac_addr[2],
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derived_mac_addr[3], derived_mac_addr[4], derived_mac_addr[5]);
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//Get MAC address for Ethernet
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ESP_ERROR_CHECK(esp_read_mac(derived_mac_addr, ESP_MAC_ETH));
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ESP_LOGI("Ethernet MAC", "0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x",
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derived_mac_addr[0], derived_mac_addr[1], derived_mac_addr[2],
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derived_mac_addr[3], derived_mac_addr[4], derived_mac_addr[5]);
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}
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