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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/net/wireless/rsi/rsi_91x_mac80211.c
....@@ -1,4 +1,4 @@
1
-/**
1
+/*
22  * Copyright (c) 2014 Redpine Signals Inc.
33  *
44  * Permission to use, copy, modify, and/or distribute this software for any
....@@ -230,6 +230,69 @@
230230 	return 0;
231231 }
232232 
233
+static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw,
234
+				      struct ieee80211_vif *vif,
235
+				      struct ieee80211_scan_request *hw_req)
236
+{
237
+	struct cfg80211_scan_request *scan_req = &hw_req->req;
238
+	struct rsi_hw *adapter = hw->priv;
239
+	struct rsi_common *common = adapter->priv;
240
+	struct ieee80211_bss_conf *bss = &vif->bss_conf;
241
+
242
+	rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n");
243
+	common->mac_ops_resumed = false;
244
+
245
+	if (common->fsm_state != FSM_MAC_INIT_DONE)
246
+		return -ENODEV;
247
+
248
+	if ((common->wow_flags & RSI_WOW_ENABLED) ||
249
+	    scan_req->n_channels == 0)
250
+		return -EINVAL;
251
+
252
+	/* Scan already in progress. So return */
253
+	if (common->bgscan_en)
254
+		return -EBUSY;
255
+
256
+	/* If STA is not connected, return with special value 1, in order
257
+	 * to start sw_scan in mac80211
258
+	 */
259
+	if (!bss->assoc)
260
+		return 1;
261
+
262
+	mutex_lock(&common->mutex);
263
+	common->hwscan = scan_req;
264
+	if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) {
265
+		if (!rsi_send_bgscan_probe_req(common, vif)) {
266
+			rsi_dbg(INFO_ZONE, "Background scan started...\n");
267
+			common->bgscan_en = true;
268
+		}
269
+	}
270
+	mutex_unlock(&common->mutex);
271
+
272
+	return 0;
273
+}
274
+
275
+static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw,
276
+					struct ieee80211_vif *vif)
277
+{
278
+	struct rsi_hw *adapter = hw->priv;
279
+	struct rsi_common *common = adapter->priv;
280
+	struct cfg80211_scan_info info;
281
+
282
+	rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n");
283
+	mutex_lock(&common->mutex);
284
+
285
+	if (common->bgscan_en) {
286
+		if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN))
287
+			common->bgscan_en = false;
288
+		info.aborted = false;
289
+		ieee80211_scan_completed(adapter->hw, &info);
290
+		rsi_dbg(INFO_ZONE, "Back ground scan cancelled\n");
291
+	}
292
+	common->hwscan = NULL;
293
+	mutex_unlock(&common->mutex);
294
+}
295
+
233296 /**
234297  * rsi_mac80211_detach() - This function is used to de-initialize the
235298  *			   Mac80211 stack.
....@@ -309,6 +372,10 @@
309372 {
310373 	struct rsi_hw *adapter = hw->priv;
311374 	struct rsi_common *common = adapter->priv;
375
+	struct ieee80211_hdr *wlh = (struct ieee80211_hdr *)skb->data;
376
+
377
+	if (ieee80211_is_auth(wlh->frame_control))
378
+		common->mac_ops_resumed = false;
312379 
313380 	rsi_core_xmit(common, skb);
314381 }
....@@ -615,7 +682,8 @@
615682 	}
616683 
617684 	/* Power save parameters */
618
-	if (changed & IEEE80211_CONF_CHANGE_PS) {
685
+	if ((changed & IEEE80211_CONF_CHANGE_PS) &&
686
+	    !common->mac_ops_resumed) {
619687 		struct ieee80211_vif *vif, *sta_vif = NULL;
620688 		unsigned long flags;
621689 		int i, set_ps = 1;
....@@ -662,7 +730,7 @@
662730 /**
663731  * rsi_get_connected_channel() - This function is used to get the current
664732  *				 connected channel number.
665
- * @adapter: Pointer to the adapter structure.
733
+ * @vif: Pointer to the ieee80211_vif structure.
666734  *
667735  * Return: Current connected AP's channel number is returned.
668736  */
....@@ -748,22 +816,22 @@
748816 		adapter->ps_info.dtim_interval_duration = bss->dtim_period;
749817 		adapter->ps_info.listen_interval = conf->listen_interval;
750818 
751
-	/* If U-APSD is updated, send ps parameters to firmware */
752
-	if (bss->assoc) {
753
-		if (common->uapsd_bitmap) {
754
-			rsi_dbg(INFO_ZONE, "Configuring UAPSD\n");
755
-			rsi_conf_uapsd(adapter, vif);
819
+		/* If U-APSD is updated, send ps parameters to firmware */
820
+		if (bss->assoc) {
821
+			if (common->uapsd_bitmap) {
822
+				rsi_dbg(INFO_ZONE, "Configuring UAPSD\n");
823
+				rsi_conf_uapsd(adapter, vif);
824
+			}
825
+		} else {
826
+			common->uapsd_bitmap = 0;
756827 		}
757
-	} else {
758
-		common->uapsd_bitmap = 0;
759
-	}
760828 	}
761829 
762830 	if (changed & BSS_CHANGED_CQM) {
763831 		common->cqm_info.last_cqm_event_rssi = 0;
764832 		common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold;
765833 		common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst;
766
-		rsi_dbg(INFO_ZONE, "RSSI throld & hysteresis are: %d %d\n",
834
+		rsi_dbg(INFO_ZONE, "RSSI threshold & hysteresis are: %d %d\n",
767835 			common->cqm_info.rssi_thold,
768836 			common->cqm_info.rssi_hyst);
769837 	}
....@@ -786,7 +854,7 @@
786854 /**
787855  * rsi_mac80211_conf_filter() - This function configure the device's RX filter.
788856  * @hw: Pointer to the ieee80211_hw structure.
789
- * @changed: Changed flags set.
857
+ * @changed_flags: Changed flags set.
790858  * @total_flags: Total initial flags set.
791859  * @multicast: Multicast.
792860  *
....@@ -867,6 +935,7 @@
867935  * @hw: Pointer to the ieee80211_hw structure.
868936  * @vif: Pointer to the ieee80211_vif structure.
869937  * @key: Pointer to the ieee80211_key_conf structure.
938
+ * @sta: Pointer to the ieee80211_sta structure.
870939  *
871940  * Return: status: 0 on success, negative error codes on failure.
872941  */
....@@ -924,7 +993,7 @@
924993 	if (status)
925994 		return status;
926995 
927
-	if (vif->type == NL80211_IFTYPE_STATION && key->key &&
996
+	if (vif->type == NL80211_IFTYPE_STATION &&
928997 	    (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
929998 	     key->cipher == WLAN_CIPHER_SUITE_WEP40)) {
930999 		if (!rsi_send_block_unblock_frame(adapter->priv, false))
....@@ -1068,8 +1137,7 @@
10681137 		else if ((vif->type == NL80211_IFTYPE_AP) ||
10691138 			 (vif->type == NL80211_IFTYPE_P2P_GO))
10701139 			rsta->seq_start[tid] = seq_no;
1071
-		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1072
-		status = 0;
1140
+		status = IEEE80211_AMPDU_TX_START_IMMEDIATE;
10731141 		break;
10741142 
10751143 	case IEEE80211_AMPDU_TX_STOP_CONT:
....@@ -1178,6 +1246,7 @@
11781246  * @common: Pointer to the driver private structure.
11791247  * @bssid: pointer to the bssid.
11801248  * @rssi: RSSI value.
1249
+ * @vif: Pointer to the ieee80211_vif structure.
11811250  */
11821251 static void rsi_perform_cqm(struct rsi_common *common,
11831252 			    u8 *bssid,
....@@ -1279,7 +1348,7 @@
12791348 }
12801349 
12811350 /**
1282
- * rsi_indicate_pkt_to_os() - This function sends recieved packet to mac80211.
1351
+ * rsi_indicate_pkt_to_os() - This function sends received packet to mac80211.
12831352  * @common: Pointer to the driver private structure.
12841353  * @skb: Pointer to the socket buffer structure.
12851354  *
....@@ -1717,7 +1786,8 @@
17171786 	return status;
17181787 }
17191788 
1720
-static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw)
1789
+static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw,
1790
+				   struct ieee80211_vif *vif)
17211791 {
17221792 	struct rsi_hw *adapter = hw->priv;
17231793 	struct rsi_common *common = adapter->priv;
....@@ -1801,6 +1871,10 @@
18011871 		return 0;
18021872 	}
18031873 	rsi_dbg(INFO_ZONE, "TRIGGERS %x\n", triggers);
1874
+
1875
+	if (common->coex_mode > 1)
1876
+		rsi_disable_ps(adapter, adapter->vifs[0]);
1877
+
18041878 	rsi_send_wowlan_request(common, triggers, 1);
18051879 
18061880 	/**
....@@ -1844,8 +1918,13 @@
18441918 
18451919 	rsi_dbg(INFO_ZONE, "%s: mac80211 resume\n", __func__);
18461920 
1847
-	if (common->hibernate_resume)
1848
-		return 0;
1921
+	if (common->hibernate_resume) {
1922
+		common->mac_ops_resumed = true;
1923
+		/* Device need a complete restart of all MAC operations.
1924
+		 * returning 1 will serve this purpose.
1925
+		 */
1926
+		return 1;
1927
+	}
18491928 
18501929 	mutex_lock(&common->mutex);
18511930 	rsi_send_wowlan_request(common, 0, 0);
....@@ -1885,6 +1964,8 @@
18851964 	.suspend = rsi_mac80211_suspend,
18861965 	.resume  = rsi_mac80211_resume,
18871966 #endif
1967
+	.hw_scan = rsi_mac80211_hw_scan_start,
1968
+	.cancel_hw_scan = rsi_mac80211_cancel_hw_scan,
18881969 };
18891970 
18901971 /**
....@@ -1972,6 +2053,9 @@
19722053 	common->max_stations = wiphy->max_ap_assoc_sta;
19732054 	rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations);
19742055 	hw->sta_data_size = sizeof(struct rsi_sta);
2056
+
2057
+	wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS;
2058
+	wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN;
19752059 	wiphy->flags = WIPHY_FLAG_REPORTS_OBSS;
19762060 	wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
19772061 	wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;