-#ifdef CONFIG_CARL9170FW_WOL
-static void wlan_rx_wol(struct ieee80211_hdr *hdr, unsigned int len)
-{
- const unsigned char *data, *end, *mac;
- unsigned int found = 0;
-
- /*
- * LIMITATION:
- * We can only scan the first AR9170_BLOCK_SIZE [=~320] bytes
- * for MAGIC patterns!
- */
-
- /*
- * TODO:
- * Currently, the MAGIC MAC Address is fixed to the EEPROM default.
- * It's possible to make it fully configurable, e.g:
- *
- * mac = (const unsigned char *) AR9170_MAC_REG_MAC_ADDR_L;
- * But this will clash with the driver's suspend path, because it
- * needs to reset the registers.
- */
- mac = rom.sys.mac_address;
-
- data = (u8 *)((unsigned long)hdr + ieee80211_hdrlen(hdr->frame_control));
- end = (u8 *)((unsigned long)hdr + len);
-
- /*
- * scan for standard WOL Magic frame
- *
- * "A physical WakeOnLAN (Magic Packet) will look like this:
- * ---------------------------------------------------------------
- * | Synchronization Stream | Target MAC | Password (optional) |
- * | 6 octets | 96 octets | 0, 4 or 6 |
- * ---------------------------------------------------------------
- *
- * The Synchronization Stream is defined as 6 bytes of FFh.
- * The Target MAC block contains 16 duplications of the IEEEaddress
- * of the target, with no breaks or interruptions.
- *
- * The Password field is optional, but if present, contains either
- * 4 bytes or 6 bytes. The WakeOnLAN dissector was implemented to
- * dissect the password, if present, according to the command-line
- * format that ether-wake uses, therefore, if a 4-byte password is
- * present, it will be dissected as an IPv4 address and if a 6-byte
- * password is present, it will be dissected as an Ethernet address.
- *
- * <http://wiki.wireshark.org/WakeOnLAN>
- */
-
- while (data < end) {
- if (found >= 6) {
- if (*data == mac[found % 6])
- found++;
- else
- found = 0;
- }
-
- /* previous check might reset found counter */
- if (found < 6) {
- if (*data == 0xff)
- found++;
- else
- found = 0;
- }
-
- if (found == (6 + 16 * 6)) {
- fw.suspend_mode = CARL9170_AWAKE_HOST;
- return;
- }
-
- data++;
- }
-
- return;
-}
-#endif /* CONFIG_CARL9170FW_WOL */
-