rsi: data and managemet path changes for AP mode

Station id needs to be get for data and management frames
to fill in the descruptor for AP mode. Few other changes
related to AP mode are covered here.

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, 48 insertions, 16 deletions

diff --git a/drivers/net/wireless/rsi/rsi_91x_hal.c b/drivers/net/wireless/rsi/rsi_91x_hal.c
index 1ed73320e19f..070dfd68bb83 100644
--- a/drivers/net/wireless/rsi/rsi_91x_hal.c
+++ b/drivers/net/wireless/rsi/rsi_91x_hal.c
@@ -18,6 +18,7 @@
 #include "rsi_mgmt.h"
 #include "rsi_hal.h"
 #include "rsi_sdio.h"
+#include "rsi_common.h"
 
 /* FLASH Firmware */
 static struct ta_metadata metadata_flash_content[] = {
@@ -41,7 +42,7 @@ static int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb)
 	struct ieee80211_hdr *wh = NULL;
 	struct ieee80211_tx_info *info;
 	struct ieee80211_conf *conf = &adapter->hw->conf;
-	struct ieee80211_vif *vif = NULL;
+	struct ieee80211_vif *vif = adapter->vifs[0];
 	struct rsi_mgmt_desc *mgmt_desc;
 	struct skb_info *tx_params;
 	struct ieee80211_bss_conf *bss = NULL;
@@ -49,6 +50,11 @@ static int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb)
 	u8 header_size;
 	u32 dword_align_bytes = 0;
 
+	if (skb->len > MAX_MGMT_PKT_SIZE) {
+		rsi_dbg(INFO_ZONE, "%s: Dropping mgmt pkt > 512\n", __func__);
+		return -EINVAL;
+	}
+
 	info = IEEE80211_SKB_CB(skb);
 	tx_params = (struct skb_info *)info->driver_data;
 
@@ -74,15 +80,10 @@ static int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb)
 	memset(&skb->data[0], 0, header_size);
 	bss = &info->control.vif->bss_conf;
 	wh = (struct ieee80211_hdr *)&skb->data[header_size];
-	vif = adapter->vifs[0];
 
 	mgmt_desc = (struct rsi_mgmt_desc *)skb->data;
 	xtend_desc = (struct xtended_desc *)&skb->data[FRAME_DESC_SZ];
 
-	if (skb->len > MAX_MGMT_PKT_SIZE) {
-		rsi_dbg(INFO_ZONE, "%s: Dropping mgmt pkt > 512\n", __func__);
-		return -EINVAL;
-	}
 	rsi_set_len_qno(&mgmt_desc->len_qno, (skb->len - FRAME_DESC_SZ),
 			RSI_WIFI_MGMT_Q);
 	mgmt_desc->frame_type = TX_DOT11_MGMT;
@@ -113,6 +114,22 @@ static int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb)
 		}
 	}
 
+	if (ieee80211_is_probe_resp(wh->frame_control)) {
+		mgmt_desc->misc_flags |= (RSI_ADD_DELTA_TSF_VAP_ID |
+					  RSI_FETCH_RETRY_CNT_FRM_HST);
+#define PROBE_RESP_RETRY_CNT	3
+		xtend_desc->retry_cnt = PROBE_RESP_RETRY_CNT;
+	}
+
+	if ((vif->type == NL80211_IFTYPE_AP) &&
+	    (ieee80211_is_action(wh->frame_control))) {
+		struct rsi_sta *rsta = rsi_find_sta(common, wh->addr1);
+
+		if (rsta)
+			mgmt_desc->sta_id = tx_params->sta_id;
+		else
+			return -EINVAL;
+	}
 	return 0;
 }
 
@@ -157,7 +174,7 @@ static int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb)
 
 	xtend_desc = (struct xtended_desc *)&skb->data[FRAME_DESC_SZ];
 	wh = (struct ieee80211_hdr *)&skb->data[header_size];
-	seq_num = (le16_to_cpu(wh->seq_ctrl) >> 4);
+	seq_num = IEEE80211_SEQ_TO_SN(le16_to_cpu(wh->seq_ctrl));
 	vif = adapter->vifs[0];
 
 	data_desc->xtend_desc_size = header_size - FRAME_DESC_SZ;
@@ -191,12 +208,11 @@ static int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb)
 		if (conf_is_ht40(&common->priv->hw->conf))
 			data_desc->bbp_info = cpu_to_le16(FULL40M_ENABLE);
 
-		if (common->vif_info[0].sgi) {
-			if (common->min_rate & 0x100) /* Only MCS rates */
-				data_desc->rate_info |=
-					cpu_to_le16(ENABLE_SHORTGI_RATE);
+		if ((common->vif_info[0].sgi) && (common->min_rate & 0x100)) {
+		       /* Only MCS rates */
+			data_desc->rate_info |=
+				cpu_to_le16(ENABLE_SHORTGI_RATE);
 		}
-
 	}
 
 	if (skb->protocol == cpu_to_be16(ETH_P_PAE)) {
@@ -223,7 +239,17 @@ static int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb)
 		data_desc->frame_info = cpu_to_le16(RATE_INFO_ENABLE);
 		data_desc->frame_info |= cpu_to_le16(RSI_BROADCAST_PKT);
 		data_desc->sta_id = vap_id;
+
+		if (vif->type == NL80211_IFTYPE_AP) {
+			if (common->band == NL80211_BAND_5GHZ)
+				data_desc->rate_info = cpu_to_le16(RSI_RATE_6);
+			else
+				data_desc->rate_info = cpu_to_le16(RSI_RATE_1);
+		}
 	}
+	if ((vif->type == NL80211_IFTYPE_AP) &&
+	    (ieee80211_has_moredata(wh->frame_control)))
+		data_desc->frame_info |= cpu_to_le16(MORE_DATA_PRESENT);
 
 	return 0;
 }
@@ -232,17 +258,23 @@ static int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb)
 int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb)
 {
 	struct rsi_hw *adapter = common->priv;
+	struct ieee80211_vif *vif = adapter->vifs[0];
 	struct ieee80211_tx_info *info;
 	struct ieee80211_bss_conf *bss;
-	int status = -EIO;
+	int status = -EINVAL;
+
+	if (!skb)
+		return 0;
+	if (common->iface_down)
+		goto err;
 
 	info = IEEE80211_SKB_CB(skb);
+	if (!info->control.vif)
+		goto err;
 	bss = &info->control.vif->bss_conf;
 
-	if (!bss->assoc) {
-		status = -EINVAL;
+	if ((vif->type == NL80211_IFTYPE_STATION) && (!bss->assoc))
 		goto err;
-	}
 
 	status = rsi_prepare_data_desc(common, skb);
 	if (status)