cfg80211: introduce TDLS channel switch commands

Introduce commands to initiate and cancel TDLS channel-switching. Once
TDLS channel-switching is started, the lower level driver is responsible
for continually initiating channel-switch operations and returning to
the base (AP) channel to listen for beacons from time to time.

Upon cancellation of the channel-switch all communication between the
relevant TDLS peers will continue on the base channel.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index ccdeef28d672..365db67ca71d 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -762,6 +762,18 @@
  * @NL80211_CMD_LEAVE_OCB: Leave the OCB network -- no special arguments, the
  *      network is determined by the network interface.
  *
+ * @NL80211_CMD_TDLS_CHANNEL_SWITCH: Start channel-switching with a TDLS peer,
+ *      identified by the %NL80211_ATTR_MAC parameter. A target channel is
+ *      provided via %NL80211_ATTR_WIPHY_FREQ and other attributes determining
+ *      channel width/type. The target operating class is given via
+ *      %NL80211_ATTR_OPER_CLASS.
+ *      The driver is responsible for continually initiating channel-switching
+ *      operations and returning to the base channel for communication with the
+ *      AP.
+ * @NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH: Stop channel-switching with a TDLS
+ *      peer given by %NL80211_ATTR_MAC. Both peers must be on the base channel
+ *      when this command completes.
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -943,6 +955,9 @@ enum nl80211_commands {
 
         NL80211_CMD_CH_SWITCH_STARTED_NOTIFY,
 
+        NL80211_CMD_TDLS_CHANNEL_SWITCH,
+        NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
+
         /* add new commands above here */
 
         /* used to define NL80211_CMD_MAX below */
@@ -1669,6 +1684,8 @@ enum nl80211_commands {
  * @NL80211_ATTR_SMPS_MODE: SMPS mode to use (ap mode). see
  *      &enum nl80211_smps_mode.
  *
+ * @NL80211_ATTR_OPER_CLASS: operating class
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -2021,6 +2038,8 @@ enum nl80211_attrs {
 
         NL80211_ATTR_SMPS_MODE,
 
+        NL80211_ATTR_OPER_CLASS,
+
         /* add attributes here, update the policy in nl80211.c */
 
         __NL80211_ATTR_AFTER_LAST,