cfg80211: add wowlan net-detect support
Add a new WoWLAN API to enable net-detect as a wake up trigger.
Net-detect allows the device to scan in the background while the
host is asleep to wake up the host system when a matching network
is found.
Reuse the scheduled scan attributes to specify how the scan is
performed while suspended and the matches that will trigger a
wake event.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8d04dfe..05aae22 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1940,6 +1940,7 @@
* @rfkill_release: wake up when rfkill is released
* @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
* NULL if not configured.
+ * @nd_config: configuration for the scan to be used for net detect wake.
*/
struct cfg80211_wowlan {
bool any, disconnect, magic_pkt, gtk_rekey_failure,
@@ -1948,6 +1949,7 @@
struct cfg80211_pkt_pattern *patterns;
struct cfg80211_wowlan_tcp *tcp;
int n_patterns;
+ struct cfg80211_sched_scan_request *nd_config;
};
/**
@@ -1980,6 +1982,35 @@
};
/**
+ * struct cfg80211_wowlan_nd_match - information about the match
+ *
+ * @ssid: SSID of the match that triggered the wake up
+ * @n_channels: Number of channels where the match occurred. This
+ * value may be zero if the driver can't report the channels.
+ * @channels: center frequencies of the channels where a match
+ * occurred (in MHz)
+ */
+struct cfg80211_wowlan_nd_match {
+ struct cfg80211_ssid ssid;
+ int n_channels;
+ u32 channels[];
+};
+
+/**
+ * struct cfg80211_wowlan_nd_info - net detect wake up information
+ *
+ * @n_matches: Number of match information instances provided in
+ * @matches. This value may be zero if the driver can't provide
+ * match information.
+ * @matches: Array of pointers to matches containing information about
+ * the matches that triggered the wake up.
+ */
+struct cfg80211_wowlan_nd_info {
+ int n_matches;
+ struct cfg80211_wowlan_nd_match *matches[];
+};
+
+/**
* struct cfg80211_wowlan_wakeup - wakeup report
* @disconnect: woke up by getting disconnected
* @magic_pkt: woke up by receiving magic packet
@@ -1998,6 +2029,7 @@
* @tcp_match: TCP wakeup packet received
* @tcp_connlost: TCP connection lost or failed to establish
* @tcp_nomoretokens: TCP data ran out of tokens
+ * @net_detect: if not %NULL, woke up because of net detect
*/
struct cfg80211_wowlan_wakeup {
bool disconnect, magic_pkt, gtk_rekey_failure,
@@ -2007,6 +2039,7 @@
s32 pattern_idx;
u32 packet_present_len, packet_len;
const void *packet;
+ struct cfg80211_wowlan_nd_info *net_detect;
};
/**
@@ -2810,6 +2843,7 @@
* @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
* @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
* @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
+ * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection
*/
enum wiphy_wowlan_support_flags {
WIPHY_WOWLAN_ANY = BIT(0),
@@ -2820,6 +2854,7 @@
WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
+ WIPHY_WOWLAN_NET_DETECT = BIT(8),
};
struct wiphy_wowlan_tcp_support {
@@ -2838,6 +2873,11 @@
* @pattern_max_len: maximum length of each pattern
* @pattern_min_len: minimum length of each pattern
* @max_pkt_offset: maximum Rx packet offset
+ * @max_nd_match_sets: maximum number of matchsets for net-detect,
+ * similar, but not necessarily identical, to max_match_sets for
+ * scheduled scans.
+ * See &struct cfg80211_sched_scan_request.@match_sets for more
+ * details.
* @tcp: TCP wakeup support information
*/
struct wiphy_wowlan_support {
@@ -2846,6 +2886,7 @@
int pattern_max_len;
int pattern_min_len;
int max_pkt_offset;
+ int max_nd_match_sets;
const struct wiphy_wowlan_tcp_support *tcp;
};