[PATCH v3 5/7] nl80211: add support to enable TX on oper-channel

[Victor Goldenshtein <victorg@ti.com>]

Once a channel has been passes the channel availability
check (CAC) the ap may start the tx with
wpa_driver_nl80211_enable_dfs_tx().

Add wpa_driver_nl80211_enable_dfs_tx() + init drv_ops.

Signed-hostap: Boris Presman <boris.presman@ti.com>
Signed-hostap: Victor Goldenshtein <victorg@ti.com>
---
 src/drivers/driver_nl80211.c |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 3ac485c..fadd4cb 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -8849,6 +8849,33 @@ static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
 }
 
 
+static int nl80211_enable_dfs_tx(void *priv, int freq)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	int ret;
+
+	wpa_printf(MSG_DEBUG, "nl80211: Enable DFS tx");
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		return -1;
+
+	nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_DFS_ENABLE_TX);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+
+	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+	if (ret == 0)
+		return 0;
+	wpa_printf(MSG_DEBUG, "nl80211: Failed to enable DFS tx: "
+		   "%d (%s)", ret, strerror(-ret));
+nla_put_failure:
+	return -1;
+}
+
+
 #ifdef CONFIG_TDLS
 
 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
@@ -9143,6 +9170,7 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
 	.set_rekey_info = nl80211_set_rekey_info,
 	.poll_client = nl80211_poll_client,
 	.set_p2p_powersave = nl80211_set_p2p_powersave,
+	.enable_tx = nl80211_enable_dfs_tx,
 #ifdef CONFIG_TDLS
 	.send_tdls_mgmt = nl80211_send_tdls_mgmt,
 	.tdls_oper = nl80211_tdls_oper,
-- 
1.7.5.4