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, 64 insertions, 1 deletions

diff --git a/drivers/net/wireless/rsi/rsi_91x_hal.c b/drivers/net/wireless/rsi/rsi_91x_hal.c
index 4addcc0826db..1ed73320e19f 100644
--- a/drivers/net/wireless/rsi/rsi_91x_hal.c
+++ b/drivers/net/wireless/rsi/rsi_91x_hal.c
@@ -25,7 +25,15 @@ static struct ta_metadata metadata_flash_content[] = {
 	{"rsi/rs9113_wlan_qspi.rps", 0x00010000},
 };
 
-/*This function prepares descriptor for given management packet*/
+int rsi_send_pkt_to_bus(struct rsi_common *common, struct sk_buff *skb)
+{
+	struct rsi_hw *adapter = common->priv;
+	int status;
+
+	status = adapter->host_intf_ops->write_pkt(common->priv,
+						   skb->data, skb->len);
+	return status;
+}
 
 static int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb)
 {
@@ -306,6 +314,61 @@ err:
 	return status;
 }
 
+int rsi_prepare_beacon(struct rsi_common *common, struct sk_buff *skb)
+{
+	struct rsi_hw *adapter = (struct rsi_hw *)common->priv;
+	struct rsi_data_desc *bcn_frm;
+	struct ieee80211_hw *hw = common->priv->hw;
+	struct ieee80211_conf *conf = &hw->conf;
+	struct sk_buff *mac_bcn;
+	u8 vap_id = 0;
+	u16 tim_offset;
+
+	mac_bcn = ieee80211_beacon_get_tim(adapter->hw,
+					   adapter->vifs[adapter->sc_nvifs - 1],
+					   &tim_offset, NULL);
+	if (!mac_bcn) {
+		rsi_dbg(ERR_ZONE, "Failed to get beacon from mac80211\n");
+		return -EINVAL;
+	}
+
+	common->beacon_cnt++;
+	bcn_frm = (struct rsi_data_desc *)skb->data;
+	rsi_set_len_qno(&bcn_frm->len_qno, mac_bcn->len, RSI_WIFI_DATA_Q);
+	bcn_frm->header_len = MIN_802_11_HDR_LEN;
+	bcn_frm->frame_info = cpu_to_le16(RSI_DATA_DESC_MAC_BBP_INFO |
+					  RSI_DATA_DESC_NO_ACK_IND |
+					  RSI_DATA_DESC_BEACON_FRAME |
+					  RSI_DATA_DESC_INSERT_TSF |
+					  RSI_DATA_DESC_INSERT_SEQ_NO |
+					  RATE_INFO_ENABLE);
+	bcn_frm->rate_info = cpu_to_le16(vap_id << 14);
+	bcn_frm->qid_tid = BEACON_HW_Q;
+
+	if (conf_is_ht40_plus(conf)) {
+		bcn_frm->bbp_info = cpu_to_le16(LOWER_20_ENABLE);
+		bcn_frm->bbp_info |= cpu_to_le16(LOWER_20_ENABLE >> 12);
+	} else if (conf_is_ht40_minus(conf)) {
+		bcn_frm->bbp_info = cpu_to_le16(UPPER_20_ENABLE);
+		bcn_frm->bbp_info |= cpu_to_le16(UPPER_20_ENABLE >> 12);
+	}
+
+	if (common->band == NL80211_BAND_2GHZ)
+		bcn_frm->bbp_info |= cpu_to_le16(RSI_RATE_1);
+	else
+		bcn_frm->bbp_info |= cpu_to_le16(RSI_RATE_6);
+
+	if (mac_bcn->data[tim_offset + 2] == 0)
+		bcn_frm->frame_info |= cpu_to_le16(RSI_DATA_DESC_DTIM_BEACON);
+
+	memcpy(&skb->data[FRAME_DESC_SZ], mac_bcn->data, mac_bcn->len);
+	skb_put(skb, mac_bcn->len + FRAME_DESC_SZ);
+
+	dev_kfree_skb(mac_bcn);
+
+	return 0;
+}
+
 static void bl_cmd_timeout(unsigned long priv)
 {
 	struct rsi_hw *adapter = (struct rsi_hw *)priv;