#include "printf.h"
#include "rf.h"
#include "linux/ieee80211.h"
+#include "wol.h"
static void wlan_txunstuck(unsigned int queue)
{
return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK;
}
-/* This function will only work on uint32_t-aligned pointers! */
-static inline bool compare_ether_address(const void *_d0, const void *_d1)
-{
- const uint32_t *d0 = _d0;
- const uint32_t *d1 = _d1;
-
- /* BUG_ON((unsigned long)d0 & 3 || (unsigned long)d1 & 3)) */
- return !((d0[0] ^ d1[0]) | (unsigned short)(d0[1] ^ d1[1]));
-}
-
/* This function will only work on uint32_t-aligned pointers! */
static bool same_hdr(const void *_d0, const void *_d1)
{
wlan_trigger(BIT(super->s.queue));
}
-static void wlan_tx_fw(struct carl9170_tx_superdesc *super, fw_desc_callback_t cb)
+void wlan_tx_fw(struct carl9170_tx_superdesc *super, fw_desc_callback_t cb)
{
if (!fw.wlan.fw_desc_available)
return;
}
}
-#ifdef CONFIG_CARL9170FW_WOL
-void wlan_prepare_wol(void)
-{
- /* set MAC filter */
- memcpy((void *)AR9170_MAC_REG_MAC_ADDR_L, fw.wlan.wol.cmd.mac, 6);
- memcpy((void *)AR9170_MAC_REG_BSSID_L, fw.wlan.wol.cmd.bssid, 6);
- set(AR9170_MAC_REG_RX_CONTROL, AR9170_MAC_RX_CTRL_DEAGG);
-
- /* set filter policy to: discard everything */
- fw.wlan.rx_filter = CARL9170_RX_FILTER_EVERYTHING;
-
- /* reenable rx dma */
- wlan_trigger(AR9170_DMA_TRIGGER_RXQ);
-
- /* initialize the last_beacon timer */
- fw.wlan.wol.last_null = fw.wlan.wol.last_beacon = get_clock_counter();
-}
-
-#ifdef CONFIG_CARL9170FW_WOL_NL80211_TRIGGERS
-static bool wlan_rx_wol_magic_packet(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!
- */
-
- mac = (const unsigned char *) AR9170_MAC_REG_MAC_ADDR_L;
-
- 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))
- return true;
-
- data++;
- }
-
- return false;
-}
-
-static void wlan_wol_connect_callback(void __unused *dummy, bool success)
-{
- if (success)
- fw.wlan.wol.lost_null = 0;
- else
- fw.wlan.wol.lost_null++;
-}
-
-static void wlan_wol_connection_monitor(void)
-{
- struct carl9170_tx_null_superframe *nullf = &dma_mem.reserved.cmd.null;
- struct ieee80211_hdr *null = (struct ieee80211_hdr *) &nullf->f.null;
-
- if (!fw.wlan.fw_desc_available)
- return;
-
- memset(nullf, 0, sizeof(*nullf));
-
- nullf->s.len = sizeof(struct carl9170_tx_superdesc) +
- sizeof(struct ar9170_tx_hwdesc) +
- sizeof(struct ieee80211_hdr);
- nullf->s.ri[0].tries = 3;
- nullf->s.assign_seq = true;
- nullf->s.queue = AR9170_TXQ_VO;
- nullf->f.hdr.length = sizeof(struct ieee80211_hdr) + FCS_LEN;
-
- nullf->f.hdr.mac.backoff = 1;
- nullf->f.hdr.mac.hw_duration = 1;
- nullf->f.hdr.mac.erp_prot = AR9170_TX_MAC_PROT_RTS;
-
- nullf->f.hdr.phy.modulation = AR9170_TX_PHY_MOD_OFDM;
- nullf->f.hdr.phy.bandwidth = AR9170_TX_PHY_BW_20MHZ;
- nullf->f.hdr.phy.chains = AR9170_TX_PHY_TXCHAIN_2;
- nullf->f.hdr.phy.tx_power = 29; /* 14.5 dBm */
- nullf->f.hdr.phy.mcs = AR9170_TXRX_PHY_RATE_OFDM_6M;
-
- /* format outgoing nullfunc */
- null->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
- IEEE80211_STYPE_NULLFUNC | IEEE80211_FCTL_TODS);
-
- memcpy(null->addr1, fw.wlan.wol.cmd.bssid, 6);
- memcpy(null->addr2, fw.wlan.wol.cmd.mac, 6);
- memcpy(null->addr3, fw.wlan.wol.cmd.bssid, 6);
-
- wlan_tx_fw(&nullf->s, wlan_wol_connect_callback);
-}
-
-static bool wlan_rx_wol_disconnect(const unsigned int rx_filter,
- struct ieee80211_hdr *hdr,
- unsigned int __unused len)
-{
- const unsigned char *bssid;
- bssid = (const unsigned char *) AR9170_MAC_REG_BSSID_L;
-
- /* should catch both broadcast and unicast MLMEs */
- if (!(rx_filter & CARL9170_RX_FILTER_OTHER_RA)) {
- if (ieee80211_is_deauth(hdr->frame_control) ||
- ieee80211_is_disassoc(hdr->frame_control))
- return true;
- }
-
- if (ieee80211_is_beacon(hdr->frame_control) &&
- compare_ether_address(hdr->addr3, bssid)) {
- fw.wlan.wol.last_beacon = get_clock_counter();
- }
-
- return false;
-}
-
-#endif /* CARL9170FW_WOL_NL80211_TRIGGERS */
-
-#ifdef CONFIG_CARL9170FW_WOL_PROBE_REQUEST
-
-/*
- * Note: CONFIG_CARL9170FW_WOL_PROBE_REQUEST_SSID is not a real
- * string. We have to be careful not to add a \0 at the end.
- */
-static const struct {
- u8 ssid_ie;
- u8 ssid_len;
- u8 ssid[sizeof(CONFIG_CARL9170FW_WOL_PROBE_REQUEST_SSID) - 1];
-} __packed probe_req = {
- .ssid_ie = WLAN_EID_SSID,
- .ssid_len = sizeof(CONFIG_CARL9170FW_WOL_PROBE_REQUEST_SSID) - 1,
- .ssid = CONFIG_CARL9170FW_WOL_PROBE_REQUEST_SSID,
-};
-
-static bool wlan_rx_wol_probe_ssid(struct ieee80211_hdr *hdr, unsigned int len)
-{
- const unsigned char *data, *end, *scan = (void *) &probe_req;
-
- /*
- * IEEE 802.11-2007 7.3.2.1 specifies that the SSID is no
- * longer than 32 octets.
- */
- BUILD_BUG_ON((sizeof(CONFIG_CARL9170FW_WOL_PROBE_REQUEST_SSID) - 1) > 32);
-
- if (ieee80211_is_probe_req(hdr->frame_control)) {
- unsigned int i;
- end = (u8 *)((unsigned long)hdr + len);
-
- /*
- * The position of the SSID information element inside
- * a probe request frame is more or less "fixed".
- */
- data = (u8 *)((struct ieee80211_mgmt *)hdr)->u.probe_req.variable;
- for (i = 0; i < (unsigned int)(probe_req.ssid_len + 1); i++) {
- if (data > end || scan[i] != data[i])
- return false;
- }
-
- return true;
- }
-
- return false;
-}
-#endif /* CONFIG_CARL9170FW_WOL_PROBE_REQUEST */
-
-static void wlan_rx_wol(unsigned int rx_filter __unused, struct ieee80211_hdr *hdr __unused, unsigned int len __unused)
-{
-#ifdef CONFIG_CARL9170FW_WOL_NL80211_TRIGGERS
- /* Disconnect is always enabled */
- if (fw.wlan.wol.cmd.flags & CARL9170_WOL_DISCONNECT &&
- rx_filter & CARL9170_RX_FILTER_MGMT)
- fw.wlan.wol.wake_up |= wlan_rx_wol_disconnect(rx_filter, hdr, len);
-
- if (fw.wlan.wol.cmd.flags & CARL9170_WOL_MAGIC_PKT &&
- rx_filter & CARL9170_RX_FILTER_DATA)
- fw.wlan.wol.wake_up |= wlan_rx_wol_magic_packet(hdr, len);
-#endif /* CONFIG_CARL9170FW_WOL_NL80211_TRIGGERS */
-
-#ifdef CONFIG_CARL9170FW_WOL_PROBE_REQUEST
- if (rx_filter & CARL9170_RX_FILTER_MGMT)
- fw.wlan.wol.wake_up |= wlan_rx_wol_probe_ssid(hdr, len);
-#endif /* CONFIG_CARL9170FW_WOL_PROBE_REQUEST */
-}
-
-static void wlan_wol_janitor(void)
-{
- if (unlikely(fw.suspend_mode == CARL9170_HOST_SUSPENDED)) {
- if (fw.wlan.wol.cmd.flags & CARL9170_WOL_DISCONNECT) {
- /*
- * connection lost after 10sec without receiving
- * a beacon
- */
- if (is_after_msecs(fw.wlan.wol.last_beacon, 10000))
- fw.wlan.wol.wake_up |= true;
-
- if (fw.wlan.wol.cmd.null_interval &&
- is_after_msecs(fw.wlan.wol.last_null, fw.wlan.wol.cmd.null_interval))
- wlan_wol_connection_monitor();
-
- if (fw.wlan.wol.lost_null >= 5)
- fw.wlan.wol.wake_up |= true;
- }
-
- if (fw.wlan.wol.wake_up) {
- fw.suspend_mode = CARL9170_AWAKE_HOST;
- set(AR9170_USB_REG_WAKE_UP, AR9170_USB_WAKE_UP_WAKE);
- }
- }
-}
-#endif /* CONFIG_CARL9170FW_WOL */
-
static unsigned int wlan_rx_filter(struct dma_desc *desc)
{
struct ieee80211_hdr *hdr;
#ifdef CONFIG_CARL9170FW_WOL
if (unlikely(fw.suspend_mode == CARL9170_HOST_SUSPENDED)) {
- wlan_rx_wol(rx_filter, hdr, min(data_len,
- (unsigned int)AR9170_BLOCK_SIZE));
+ wol_rx(rx_filter, hdr, min(data_len,
+ (unsigned int)AR9170_BLOCK_SIZE));
}
#endif /* CONFIG_CARL9170FW_WOL */
wlan_send_buffered_ba();
-#ifdef CONFIG_CARL9170FW_WOL
- wlan_wol_janitor();
-#endif /* CONFIG_CARL9170FW_WOL */
+ wol_janitor();
}
void handle_wlan(void)
projects / carl9170fw.git / blobdiff