rsi: add beacon changes for AP mode

Mac80211 config parameter BEACON_ENABLE is handled. When VAP
capabilities frame with AP mode is configured to firmware, beacon
events start coming to host at each PreTBTT. At this time, beacon
is taken from mac80211, descriptor is prepared and send to firmware.

Signed-off-by: Prameela Rani Garnepudi <prameela.j04cs@gmail.com>
Signed-off-by: Amitkumar Karwar <amit.karwar@redpinesignals.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 43 insertions, 5 deletions

diff --git a/drivers/net/wireless/rsi/rsi_91x_mgmt.c b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
index 233a418555bb..e47fc0d96475 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mgmt.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mgmt.c
@@ -18,6 +18,7 @@
 #include "rsi_mgmt.h"
 #include "rsi_common.h"
 #include "rsi_ps.h"
+#include "rsi_hal.h"
 
 static struct bootup_params boot_params_20 = {
 	.magic_number = cpu_to_le16(0x5aa5),
@@ -1518,6 +1519,31 @@ int rsi_set_antenna(struct rsi_common *common, u8 antenna)
 	return rsi_send_internal_mgmt_frame(common, skb);
 }
 
+static int rsi_send_beacon(struct rsi_common *common)
+{
+	struct sk_buff *skb = NULL;
+	u8 dword_align_bytes = 0;
+
+	skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
+	if (!skb)
+		return -ENOMEM;
+
+	memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
+
+	dword_align_bytes = ((unsigned long)skb->data & 0x3f);
+	if (dword_align_bytes)
+		skb_pull(skb, (64 - dword_align_bytes));
+	if (rsi_prepare_beacon(common, skb)) {
+		rsi_dbg(ERR_ZONE, "Failed to prepare beacon\n");
+		return -EINVAL;
+	}
+	skb_queue_tail(&common->tx_queue[MGMT_BEACON_Q], skb);
+	rsi_set_event(&common->tx_thread.event);
+	rsi_dbg(DATA_TX_ZONE, "%s: Added to beacon queue\n", __func__);
+
+	return 0;
+}
+
 /**
  * rsi_handle_ta_confirm_type() - This function handles the confirm frames.
  * @common: Pointer to the driver private structure.
@@ -1722,21 +1748,33 @@ int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg)
 	rsi_dbg(FSM_ZONE, "%s: Msg Len: %d, Msg Type: %4x\n",
 		__func__, msg_len, msg_type);
 
-	if (msg_type == TA_CONFIRM_TYPE) {
+	switch (msg_type) {
+	case TA_CONFIRM_TYPE:
 		return rsi_handle_ta_confirm_type(common, msg);
-	} else if (msg_type == CARD_READY_IND) {
+	case CARD_READY_IND:
 		rsi_dbg(FSM_ZONE, "%s: Card ready indication received\n",
 			__func__);
 		return rsi_handle_card_ready(common, msg);
-	} else if (msg_type == TX_STATUS_IND) {
+	case TX_STATUS_IND:
 		if (msg[15] == PROBEREQ_CONFIRM) {
 			common->mgmt_q_block = false;
 			rsi_dbg(FSM_ZONE, "%s: Probe confirm received\n",
 				__func__);
 		}
-	} else if (msg_type == RX_DOT11_MGMT) {
+		break;
+	case BEACON_EVENT_IND:
+		rsi_dbg(INFO_ZONE, "Beacon event\n");
+		if (common->fsm_state != FSM_MAC_INIT_DONE)
+			return -1;
+		if (common->iface_down)
+			return -1;
+		if (!common->beacon_enabled)
+			return -1;
+		rsi_send_beacon(common);
+		break;
+	case RX_DOT11_MGMT:
 		return rsi_mgmt_pkt_to_core(common, msg, msg_len);
-	} else {
+	default:
 		rsi_dbg(INFO_ZONE, "Received packet type: 0x%x\n", msg_type);
 	}
 	return 0;