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mac address: add the number of MAC address generated from efuse for user to choose

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1. Add the number of MAC address generated from efuse for user to choose.

2. Add MAC address derive method.
This commit is contained in:
XiaXiaotian
2017-03-02 14:57:45 +08:00
parent 6d061ec903
commit d3eede2110
6 changed files with 115 additions and 58 deletions
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72
components/esp32/system_api.c
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@@ -74,42 +74,82 @@ esp_err_t esp_efuse_read_mac(uint8_t* mac)
esp_err_t system_efuse_read_mac(uint8_t mac[6]) __attribute__((alias("esp_efuse_read_mac")));
esp_err_t esp_read_mac(uint8_t* mac, int interface)
esp_err_t esp_derive_mac(uint8_t* dst_mac, const uint8_t* src_mac)
{
uint8_t idx;
if (dst_mac == NULL || src_mac == NULL) {
ESP_LOGE(TAG, "mac address param is NULL");
return ESP_ERR_INVALID_ARG;
}
memcpy(dst_mac, src_mac, 6);
for (idx = 0; idx < 64; idx++) {
dst_mac[0] = src_mac[0] | 0x02;
dst_mac[0] ^= idx << 2;
if (memcmp(dst_mac, src_mac, 6)) {
break;
}
}
return ESP_OK;
}
esp_err_t esp_read_mac(uint8_t* mac, esp_mac_type_t type)
{
uint8_t efuse_mac[6];
if (mac == NULL) {
ESP_LOGE(TAG, "mac address param is NULL");
abort();
return ESP_ERR_INVALID_ARG;
}
if (type < ESP_MAC_WIFI_STA || type > ESP_MAC_ETH) {
ESP_LOGE(TAG, "mac type is incorrect");
return ESP_ERR_INVALID_ARG;
}
_Static_assert(NUM_MAC_ADDRESS_FROM_EFUSE == FOUR_MAC_ADDRESS_FROM_EFUSE \
|| NUM_MAC_ADDRESS_FROM_EFUSE == TWO_MAC_ADDRESS_FROM_EFUSE, \
"incorrect NUM_MAC_ADDRESS_FROM_EFUSE value");
esp_efuse_read_mac(efuse_mac);
switch (interface) {
#if CONFIG_WIFI_ENABLED
switch (type) {
case ESP_MAC_WIFI_STA:
memcpy(mac, efuse_mac, 6);
mac[5] += CONFIG_ESP_MAC_OFFSET_WIFI_STA;
break;
case ESP_MAC_WIFI_SOFTAP:
memcpy(mac, efuse_mac, 6);
mac[5] += CONFIG_ESP_MAC_OFFSET_WIFI_SOFTAP;
if (NUM_MAC_ADDRESS_FROM_EFUSE == FOUR_MAC_ADDRESS_FROM_EFUSE) {
memcpy(mac, efuse_mac, 6);
mac[5] += 1;
}
else if (NUM_MAC_ADDRESS_FROM_EFUSE == TWO_MAC_ADDRESS_FROM_EFUSE) {
esp_derive_mac(mac, efuse_mac);
}
break;
#endif
#if CONFIG_BT_ENABLED
case ESP_MAC_BT:
memcpy(mac, efuse_mac, 6);
mac[5] += CONFIG_ESP_MAC_OFFSET_BT;
if (NUM_MAC_ADDRESS_FROM_EFUSE == FOUR_MAC_ADDRESS_FROM_EFUSE) {
mac[5] += 2;
}
else if (NUM_MAC_ADDRESS_FROM_EFUSE == TWO_MAC_ADDRESS_FROM_EFUSE) {
mac[5] += 1;
}
break;
#endif
#if CONFIG_ETHERNET
case ESP_MAC_ETH:
memcpy(mac, efuse_mac, 6);
mac[5] += CONFIG_ESP_MAC_OFFSET_ETH;
if (NUM_MAC_ADDRESS_FROM_EFUSE == FOUR_MAC_ADDRESS_FROM_EFUSE) {
memcpy(mac, efuse_mac, 6);
mac[5] += 3;
}
else if (NUM_MAC_ADDRESS_FROM_EFUSE == TWO_MAC_ADDRESS_FROM_EFUSE) {
efuse_mac[5] += 1;
esp_derive_mac(mac, efuse_mac);
}
break;
#endif
default:
ESP_LOGW(TAG, "wrong mac type");
ESP_LOGW(TAG, "incorrect mac type");
break;
}