iwlagn: Add support for bluetooth statistics notification

WiFi/BT combo devices has different statistics notification
structure, adding the support here to make sure the structure
align correctly.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

1 files changed, 117 insertions, 50 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
index 249b77bbf638..9490eced1198 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
@@ -67,17 +67,22 @@ void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
  *   exactly when to expect beacons, therefore only when we're associated. */
 static void iwl_rx_calc_noise(struct iwl_priv *priv)
 {
-	struct statistics_rx_non_phy *rx_info
-				= &(priv->_agn.statistics.rx.general);
+	struct statistics_rx_non_phy *rx_info;
 	int num_active_rx = 0;
 	int total_silence = 0;
-	int bcn_silence_a =
+	int bcn_silence_a, bcn_silence_b, bcn_silence_c;
+	int last_rx_noise;
+
+	if (priv->cfg->bt_statistics)
+		rx_info = &(priv->_agn.statistics_bt.rx.general.common);
+	else
+		rx_info = &(priv->_agn.statistics.rx.general);
+	bcn_silence_a =
 		le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
-	int bcn_silence_b =
+	bcn_silence_b =
 		le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
-	int bcn_silence_c =
+	bcn_silence_c =
 		le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
-	int last_rx_noise;
 
 	if (bcn_silence_a) {
 		total_silence += bcn_silence_a;
@@ -112,17 +117,35 @@ static void iwl_rx_calc_noise(struct iwl_priv *priv)
 static void iwl_accumulative_statistics(struct iwl_priv *priv,
 					__le32 *stats)
 {
-	int i;
+	int i, size;
 	__le32 *prev_stats;
 	u32 *accum_stats;
 	u32 *delta, *max_delta;
+	struct statistics_general_common *general, *accum_general;
+	struct statistics_tx *tx, *accum_tx;
 
-	prev_stats = (__le32 *)&priv->_agn.statistics;
-	accum_stats = (u32 *)&priv->_agn.accum_statistics;
-	delta = (u32 *)&priv->_agn.delta_statistics;
-	max_delta = (u32 *)&priv->_agn.max_delta;
-
-	for (i = sizeof(__le32); i < sizeof(struct iwl_notif_statistics);
+	if (priv->cfg->bt_statistics) {
+		prev_stats = (__le32 *)&priv->_agn.statistics_bt;
+		accum_stats = (u32 *)&priv->_agn.accum_statistics_bt;
+		size = sizeof(struct iwl_bt_notif_statistics);
+		general = &priv->_agn.statistics_bt.general.common;
+		accum_general = &priv->_agn.accum_statistics_bt.general.common;
+		tx = &priv->_agn.statistics_bt.tx;
+		accum_tx = &priv->_agn.accum_statistics_bt.tx;
+		delta = (u32 *)&priv->_agn.delta_statistics_bt;
+		max_delta = (u32 *)&priv->_agn.max_delta_bt;
+	} else {
+		prev_stats = (__le32 *)&priv->_agn.statistics;
+		accum_stats = (u32 *)&priv->_agn.accum_statistics;
+		size = sizeof(struct iwl_notif_statistics);
+		general = &priv->_agn.statistics.general.common;
+		accum_general = &priv->_agn.accum_statistics.general.common;
+		tx = &priv->_agn.statistics.tx;
+		accum_tx = &priv->_agn.accum_statistics.tx;
+		delta = (u32 *)&priv->_agn.delta_statistics;
+		max_delta = (u32 *)&priv->_agn.max_delta;
+	}
+	for (i = sizeof(__le32); i < size;
 	     i += sizeof(__le32), stats++, prev_stats++, delta++,
 	     max_delta++, accum_stats++) {
 		if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
@@ -135,18 +158,12 @@ static void iwl_accumulative_statistics(struct iwl_priv *priv,
 	}
 
 	/* reset accumulative statistics for "no-counter" type statistics */
-	priv->_agn.accum_statistics.general.common.temperature =
-		priv->_agn.statistics.general.common.temperature;
-	priv->_agn.accum_statistics.general.common.temperature_m =
-		priv->_agn.statistics.general.common.temperature_m;
-	priv->_agn.accum_statistics.general.common.ttl_timestamp =
-		priv->_agn.statistics.general.common.ttl_timestamp;
-	priv->_agn.accum_statistics.tx.tx_power.ant_a =
-		priv->_agn.statistics.tx.tx_power.ant_a;
-	priv->_agn.accum_statistics.tx.tx_power.ant_b =
-		priv->_agn.statistics.tx.tx_power.ant_b;
-	priv->_agn.accum_statistics.tx.tx_power.ant_c =
-		priv->_agn.statistics.tx.tx_power.ant_c;
+	accum_general->temperature = general->temperature;
+	accum_general->temperature_m = general->temperature_m;
+	accum_general->ttl_timestamp = general->ttl_timestamp;
+	accum_tx->tx_power.ant_a = tx->tx_power.ant_a;
+	accum_tx->tx_power.ant_b = tx->tx_power.ant_b;
+	accum_tx->tx_power.ant_c = tx->tx_power.ant_c;
 }
 #endif
 
@@ -185,11 +202,30 @@ bool iwl_good_plcp_health(struct iwl_priv *priv,
 	 * by zero.
 	 */
 	if (plcp_msec) {
-		combined_plcp_delta =
-			(le32_to_cpu(pkt->u.stats.rx.ofdm.plcp_err) -
-			le32_to_cpu(priv->_agn.statistics.rx.ofdm.plcp_err)) +
-			(le32_to_cpu(pkt->u.stats.rx.ofdm_ht.plcp_err) -
-			le32_to_cpu(priv->_agn.statistics.rx.ofdm_ht.plcp_err));
+		struct statistics_rx_phy *ofdm;
+		struct statistics_rx_ht_phy *ofdm_ht;
+
+		if (priv->cfg->bt_statistics) {
+			ofdm = &pkt->u.stats_bt.rx.ofdm;
+			ofdm_ht = &pkt->u.stats_bt.rx.ofdm_ht;
+			combined_plcp_delta =
+			   (le32_to_cpu(ofdm->plcp_err) -
+			   le32_to_cpu(priv->_agn.statistics_bt.
+				       rx.ofdm.plcp_err)) +
+			   (le32_to_cpu(ofdm_ht->plcp_err) -
+			   le32_to_cpu(priv->_agn.statistics_bt.
+				       rx.ofdm_ht.plcp_err));
+		} else {
+			ofdm = &pkt->u.stats.rx.ofdm;
+			ofdm_ht = &pkt->u.stats.rx.ofdm_ht;
+			combined_plcp_delta =
+			    (le32_to_cpu(ofdm->plcp_err) -
+			    le32_to_cpu(priv->_agn.statistics.
+					rx.ofdm.plcp_err)) +
+			    (le32_to_cpu(ofdm_ht->plcp_err) -
+			    le32_to_cpu(priv->_agn.statistics.
+					rx.ofdm_ht.plcp_err));
+		}
 
 		if ((combined_plcp_delta > 0) &&
 		    ((combined_plcp_delta * 100) / plcp_msec) >
@@ -206,15 +242,14 @@ bool iwl_good_plcp_health(struct iwl_priv *priv,
 			 *    plcp_msec
 			 */
 			IWL_DEBUG_RADIO(priv, "plcp_err exceeded %u, "
-				"%u, %u, %u, %u, %d, %u mSecs\n",
-				priv->cfg->plcp_delta_threshold,
-				le32_to_cpu(pkt->u.stats.rx.ofdm.plcp_err),
-				le32_to_cpu(
-				       priv->_agn.statistics.rx.ofdm.plcp_err),
-				le32_to_cpu(pkt->u.stats.rx.ofdm_ht.plcp_err),
-				le32_to_cpu(
-				  priv->_agn.statistics.rx.ofdm_ht.plcp_err),
-				combined_plcp_delta, plcp_msec);
+				    "%u, %u, %u, %u, %d, %u mSecs\n",
+				    priv->cfg->plcp_delta_threshold,
+				    le32_to_cpu(ofdm->plcp_err),
+				    le32_to_cpu(ofdm->plcp_err),
+				    le32_to_cpu(ofdm_ht->plcp_err),
+				    le32_to_cpu(ofdm_ht->plcp_err),
+				    combined_plcp_delta, plcp_msec);
+
 			rc = false;
 		}
 	}
@@ -227,24 +262,50 @@ void iwl_rx_statistics(struct iwl_priv *priv,
 	int change;
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
 
+	if (priv->cfg->bt_statistics) {
+		IWL_DEBUG_RX(priv,
+			     "Statistics notification received (%d vs %d).\n",
+			     (int)sizeof(struct iwl_bt_notif_statistics),
+			     le32_to_cpu(pkt->len_n_flags) &
+			     FH_RSCSR_FRAME_SIZE_MSK);
 
-	IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
-		     (int)sizeof(priv->_agn.statistics),
-		     le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
+		change = ((priv->_agn.statistics_bt.general.common.temperature !=
+			   pkt->u.stats_bt.general.common.temperature) ||
+			   ((priv->_agn.statistics_bt.flag &
+			   STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
+			   (pkt->u.stats_bt.flag &
+			   STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+		iwl_accumulative_statistics(priv, (__le32 *)&pkt->u.stats_bt);
+#endif
 
-	change = ((priv->_agn.statistics.general.common.temperature !=
-		   pkt->u.stats.general.common.temperature) ||
-		  ((priv->_agn.statistics.flag &
-		    STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
-		   (pkt->u.stats.flag & STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
+	} else {
+		IWL_DEBUG_RX(priv,
+			     "Statistics notification received (%d vs %d).\n",
+			     (int)sizeof(struct iwl_notif_statistics),
+			     le32_to_cpu(pkt->len_n_flags) &
+			     FH_RSCSR_FRAME_SIZE_MSK);
 
+		change = ((priv->_agn.statistics.general.common.temperature !=
+			   pkt->u.stats.general.common.temperature) ||
+			   ((priv->_agn.statistics.flag &
+			   STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
+			   (pkt->u.stats.flag &
+			   STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-	iwl_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
+		iwl_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
 #endif
+
+	}
+
 	iwl_recover_from_statistics(priv, pkt);
 
-	memcpy(&priv->_agn.statistics, &pkt->u.stats,
-	       sizeof(priv->_agn.statistics));
+	if (priv->cfg->bt_statistics)
+		memcpy(&priv->_agn.statistics_bt, &pkt->u.stats_bt,
+			sizeof(priv->_agn.statistics_bt));
+	else
+		memcpy(&priv->_agn.statistics, &pkt->u.stats,
+			sizeof(priv->_agn.statistics));
 
 	set_bit(STATUS_STATISTICS, &priv->status);
 
@@ -277,6 +338,12 @@ void iwl_reply_statistics(struct iwl_priv *priv,
 			sizeof(struct iwl_notif_statistics));
 		memset(&priv->_agn.max_delta, 0,
 			sizeof(struct iwl_notif_statistics));
+		memset(&priv->_agn.accum_statistics_bt, 0,
+			sizeof(struct iwl_bt_notif_statistics));
+		memset(&priv->_agn.delta_statistics_bt, 0,
+			sizeof(struct iwl_bt_notif_statistics));
+		memset(&priv->_agn.max_delta_bt, 0,
+			sizeof(struct iwl_bt_notif_statistics));
 #endif
 		IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
 	}