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add base MAC address storage choice.

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Base MAC address can be stored in default manufacture-defined or customer
    pre-defined place in EFUSE and other place e.g. flash or EEPROM.
    If choose to use base MAC address which is stored in other place, please
    call esp_base_mac_addr_set_external() before initializing WiFi/BT/Ehternet.
This commit is contained in:
XiaXiaotian
2017-04-19 21:00:00 +08:00
parent 03e2618d35
commit 5553fbd537
3 changed files with 85 additions and 11 deletions
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28
components/esp32/include/esp_system.h
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@@ -103,7 +103,33 @@ uint32_t system_get_free_heap_size(void) __attribute__ ((deprecated));
uint32_t esp_random(void);
/**
* @brief Read hardware MAC address.
* @brief Set base MAC address from external storage e.g. flash and EEPROM.
*
* Base MAC address is used to generate the MAC addresses used by the networking interfaces.
* If using base MAC address stored in external storage, call this API to set base MAC
* address from external storage before initializing WiFi/BT/Ethernet.
*
* @param mac base MAC address, length: 6 bytes.
*
* @return ESP_OK on success
*/
esp_err_t esp_base_mac_addr_set_external(uint8_t *mac);
/**
* @brief Return base MAC address set using esp_mac_addr_set_external.
*
* @param mac base MAC address, length: 6 bytes.
*
* Base MAC address is used to generate the MAC addresses used by the networking interfaces.
* If using base MAC address stored in external storage, call this API to set base MAC
* address from external storage before initializing WiFi/BT/Ethernet.
*
* @return ESP_OK on success
*/
esp_err_t esp_base_mac_addr_get_external(uint8_t *mac);
/**
* @brief Read hardware MAC address from efuse.
*
* In WiFi MAC, only ESP32 station MAC is the hardware MAC, ESP32 softAP MAC is a software MAC
* calculated from ESP32 station MAC.