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feat(esp8266): Add get default mac

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This commit is contained in:
Dong Heng
2019-01-29 09:10:43 +08:00
parent 6d250d8eaa
commit 82959d73fe
1 changed files with 20 additions and 17 deletions
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37
components/esp8266/source/system_api.c
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@ -36,7 +36,7 @@ esp_err_t esp_base_mac_addr_set(uint8_t *mac)
{ {
if (mac == NULL) { if (mac == NULL) {
ESP_LOGE(TAG, "Base MAC address is NULL"); ESP_LOGE(TAG, "Base MAC address is NULL");
abort(); return ESP_ERR_INVALID_ARG;
} }
memcpy(base_mac_addr, mac, 6); memcpy(base_mac_addr, mac, 6);
@ -65,6 +65,7 @@ esp_err_t esp_efuse_mac_get_default(uint8_t* mac)
uint8_t efuse_crc = 0; uint8_t efuse_crc = 0;
uint8_t calc_crc = 0; uint8_t calc_crc = 0;
uint8_t version; uint8_t version;
uint8_t use_default = 1;
efuse[0] = REG_READ(EFUSE_DATA0_REG); efuse[0] = REG_READ(EFUSE_DATA0_REG);
efuse[1] = REG_READ(EFUSE_DATA1_REG); efuse[1] = REG_READ(EFUSE_DATA1_REG);
@ -82,6 +83,8 @@ esp_err_t esp_efuse_mac_get_default(uint8_t* mac)
mac[1] = efuse[3] >> 8; mac[1] = efuse[3] >> 8;
mac[2] = efuse[3]; mac[2] = efuse[3];
use_default = 0;
tmp_mac[0] = mac[2]; tmp_mac[0] = mac[2];
tmp_mac[1] = mac[1]; tmp_mac[1] = mac[1];
tmp_mac[2] = mac[0]; tmp_mac[2] = mac[0];
@ -89,28 +92,28 @@ esp_err_t esp_efuse_mac_get_default(uint8_t* mac)
efuse_crc = efuse[2] >> 24; efuse_crc = efuse[2] >> 24;
calc_crc = esp_crc8(tmp_mac, 3); calc_crc = esp_crc8(tmp_mac, 3);
if (efuse_crc != calc_crc) { if (efuse_crc != calc_crc)
ESP_LOGE(TAG, "High MAC CRC error, efuse_crc = 0x%02x; calc_crc = 0x%02x", efuse_crc, calc_crc); use_default = 1;
return ESP_ERR_INVALID_MAC;
}
version = (efuse[1] >> EFUSE_VERSION_S) & EFUSE_VERSION_V; if (!use_default) {
version = (efuse[1] >> EFUSE_VERSION_S) & EFUSE_VERSION_V;
if (version == EFUSE_VERSION_1 || version == EFUSE_VERSION_2) { if (version == EFUSE_VERSION_1 || version == EFUSE_VERSION_2) {
tmp_mac[0] = mac[5]; tmp_mac[0] = mac[5];
tmp_mac[1] = mac[4]; tmp_mac[1] = mac[4];
tmp_mac[2] = mac[3]; tmp_mac[2] = mac[3];
tmp_mac[3] = efuse[1] >> 16; tmp_mac[3] = efuse[1] >> 16;
efuse_crc = efuse[0] >> 16; efuse_crc = efuse[0] >> 16;
calc_crc = esp_crc8(tmp_mac, 4); calc_crc = esp_crc8(tmp_mac, 4);
if (efuse_crc != calc_crc) { if (efuse_crc != calc_crc)
ESP_LOGE(TAG, "CRC8 error, efuse_crc = 0x%02x; calc_crc = 0x%02x", efuse_crc, calc_crc); use_default = 1;
return ESP_ERR_INVALID_MAC;
} }
} }
} else { }
if (use_default) {
mac[0] = 0x18; mac[0] = 0x18;
mac[1] = 0xFE; mac[1] = 0xFE;
mac[2] = 0x34; mac[2] = 0x34;