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add mac address offset for some esp32s2.

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ChenJianxing 2020-03-04 11:15:52 +08:00
parent b9abb78546
commit a6c27619f2
1 changed files with 13 additions and 0 deletions
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13
components/esp_common/src/mac_addr.c
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@ -164,7 +164,20 @@ esp_err_t esp_read_mac(uint8_t* mac, esp_mac_type_t type)
case ESP_MAC_WIFI_SOFTAP:
#if CONFIG_ESP_MAC_ADDR_UNIVERSE_WIFI_AP
memcpy(mac, efuse_mac, 6);
// as a result of some esp32s2 chips burned with one MAC address by mistake,
// there are some MAC address are reserved for this bug fix.
// related mistake MAC address is 0x7cdfa1003000~0x7cdfa1005fff,
// reserved MAC address is 0x7cdfa1020000~0x7cdfa1022fff (MAC address + 0x1d000).
#ifdef CONFIG_IDF_TARGET_ESP32S2
uint8_t mac_begin[6] = { 0x7c, 0xdf, 0xa1, 0x00, 0x30, 0x00 };
uint8_t mac_end[6] = { 0x7c, 0xdf, 0xa1, 0x00, 0x5f, 0xff };
if(memcmp(mac,mac_begin,6) >= 0 && memcmp(mac_end,mac,6) >=0 ){
mac[3] += 0x02; // contain carry bit
mac[4] += 0xd0;
}
#else
mac[5] += 1;
#endif // IDF_TARGET_ESP32S2
#else
esp_derive_local_mac(mac, efuse_mac);
#endif