iwlagn: parsing uart message and take actions

1. Based on uart message from uCode, re-configure BT kill ack mask
messages from uCode
2. send REPLY_BT_COEX_SCO command to uCode based on the uart frame
received from uCode

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 102 insertions, 14 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 54b59dadf2a..e4873cc2a57 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -221,17 +221,17 @@ static void iwl6000g2b_send_bt_config(struct iwl_priv *priv)
 	struct iwl6000g2b_bt_cmd bt_cmd = {
 		.max_kill = IWL6000G2B_BT_MAX_KILL_DEFAULT,
 		.bt3_timer_t7_value = IWL6000G2B_BT3_T7_DEFAULT,
-		.kill_ack_mask = IWL6000G2B_BT_KILL_ACK_MASK_DEFAULT,
-		.kill_cts_mask = IWL6000G2B_BT_KILL_CTS_MASK_DEFAULT,
 		.bt3_prio_sample_time = IWL6000G2B_BT3_PRIO_SAMPLE_DEFAULT,
 		.bt3_timer_t2_value = IWL6000G2B_BT3_T2_DEFAULT,
-		.valid = IWL6000G2B_BT_VALID_ENABLE_FLAGS,
 	};
 
 	BUILD_BUG_ON(sizeof(iwl6000g2b_def_3w_lookup) !=
 			sizeof(bt_cmd.bt3_lookup_table));
 
 	bt_cmd.prio_boost = priv->cfg->bt_prio_boost;
+	bt_cmd.kill_ack_mask = priv->kill_ack_mask;
+	bt_cmd.kill_cts_mask = priv->kill_cts_mask;
+	bt_cmd.valid = priv->bt_valid;
 
 	/*
 	 * Configure BT coex mode to "no coexistence" when the
@@ -245,7 +245,6 @@ static void iwl6000g2b_send_bt_config(struct iwl_priv *priv)
 		bt_cmd.flags = IWL6000G2B_BT_FLAG_CHANNEL_INHIBITION |
 				IWL6000G2B_BT_FLAG_COEX_MODE_3W <<
 					IWL6000G2B_BT_FLAG_COEX_MODE_SHIFT;
-		bt_cmd.valid |= IWL6000G2B_BT_ALL_VALID_MSK;
 	}
 
 	if (priv->bt_full_concurrent)
@@ -453,6 +452,93 @@ static void iwl6000g2b_bt_traffic_change_work(struct work_struct *work)
 	mutex_unlock(&priv->mutex);
 }
 
+static void iwlagn_print_uartmsg(struct iwl_priv *priv,
+				struct iwl_bt_uart_msg *uart_msg)
+{
+	IWL_DEBUG_NOTIF(priv, "Message Type = 0x%X, SSN = 0x%X, "
+			"Update Req = 0x%X",
+		(BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >>
+			BT_UART_MSG_FRAME1MSGTYPE_POS,
+		(BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >>
+			BT_UART_MSG_FRAME1SSN_POS,
+		(BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >>
+			BT_UART_MSG_FRAME1UPDATEREQ_POS);
+
+	IWL_DEBUG_NOTIF(priv, "Open connections = 0x%X, Traffic load = 0x%X, "
+			"Chl_SeqN = 0x%X, In band = 0x%X",
+		(BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >>
+			BT_UART_MSG_FRAME2OPENCONNECTIONS_POS,
+		(BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >>
+			BT_UART_MSG_FRAME2TRAFFICLOAD_POS,
+		(BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >>
+			BT_UART_MSG_FRAME2CHLSEQN_POS,
+		(BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >>
+			BT_UART_MSG_FRAME2INBAND_POS);
+
+	IWL_DEBUG_NOTIF(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, "
+			"ACL = 0x%X, Master = 0x%X, OBEX = 0x%X",
+		(BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
+			BT_UART_MSG_FRAME3SCOESCO_POS,
+		(BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >>
+			BT_UART_MSG_FRAME3SNIFF_POS,
+		(BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >>
+			BT_UART_MSG_FRAME3A2DP_POS,
+		(BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >>
+			BT_UART_MSG_FRAME3ACL_POS,
+		(BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >>
+			BT_UART_MSG_FRAME3MASTER_POS,
+		(BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >>
+			BT_UART_MSG_FRAME3OBEX_POS);
+
+	IWL_DEBUG_NOTIF(priv, "Idle duration = 0x%X",
+		(BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >>
+			BT_UART_MSG_FRAME4IDLEDURATION_POS);
+
+	IWL_DEBUG_NOTIF(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, "
+			"eSCO Retransmissions = 0x%X",
+		(BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >>
+			BT_UART_MSG_FRAME5TXACTIVITY_POS,
+		(BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >>
+			BT_UART_MSG_FRAME5RXACTIVITY_POS,
+		(BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >>
+			BT_UART_MSG_FRAME5ESCORETRANSMIT_POS);
+
+	IWL_DEBUG_NOTIF(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X",
+		(BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >>
+			BT_UART_MSG_FRAME6SNIFFINTERVAL_POS,
+		(BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >>
+			BT_UART_MSG_FRAME6DISCOVERABLE_POS);
+
+	IWL_DEBUG_NOTIF(priv, "Sniff Activity = 0x%X, Inquiry/Page SR Mode = "
+			"0x%X, Connectable = 0x%X",
+		(BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >>
+			BT_UART_MSG_FRAME7SNIFFACTIVITY_POS,
+		(BT_UART_MSG_FRAME7INQUIRYPAGESRMODE_MSK & uart_msg->frame7) >>
+			BT_UART_MSG_FRAME7INQUIRYPAGESRMODE_POS,
+		(BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >>
+			BT_UART_MSG_FRAME7CONNECTABLE_POS);
+}
+
+static void iwl6000g2b_set_kill_ack_msk(struct iwl_priv *priv,
+				     struct iwl_bt_uart_msg *uart_msg)
+{
+	u8 kill_ack_msk;
+	__le32 bt_kill_ack_msg[2] = {
+		cpu_to_le32(0xFFFFFFF), cpu_to_le32(0xFFFFFC00) };
+
+	kill_ack_msk = (((BT_UART_MSG_FRAME3A2DP_MSK |
+			BT_UART_MSG_FRAME3SNIFF_MSK |
+			BT_UART_MSG_FRAME3SCOESCO_MSK) &
+			uart_msg->frame3) == 0) ? 1 : 0;
+	if (priv->kill_ack_mask != bt_kill_ack_msg[kill_ack_msk]) {
+		priv->bt_valid |= IWL6000G2B_BT_VALID_KILL_ACK_MASK;
+		priv->kill_ack_mask = bt_kill_ack_msg[kill_ack_msk];
+		/* schedule to send runtime bt_config */
+		queue_work(priv->workqueue, &priv->bt_runtime_config);
+	}
+
+}
+
 static void iwl6000g2b_bt_coex_profile_notif(struct iwl_priv *priv,
 					     struct iwl_rx_mem_buffer *rxb)
 {
@@ -460,16 +546,13 @@ static void iwl6000g2b_bt_coex_profile_notif(struct iwl_priv *priv,
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
 	struct iwl_bt_coex_profile_notif *coex = &pkt->u.bt_coex_profile_notif;
 	struct iwl6000g2b_bt_sco_cmd sco_cmd = { .flags = 0 };
+	struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg;
 
 	IWL_DEBUG_NOTIF(priv, "BT Coex notification:\n");
 	IWL_DEBUG_NOTIF(priv, "    status: %d\n", coex->bt_status);
 	IWL_DEBUG_NOTIF(priv, "    traffic load: %d\n", coex->bt_traffic_load);
 	IWL_DEBUG_NOTIF(priv, "    CI compliance: %d\n", coex->bt_ci_compliance);
-	IWL_DEBUG_NOTIF(priv, "    UART msg: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x:"
-			      "%.2x:%.2x\n",
-			coex->uart_msg[0], coex->uart_msg[1], coex->uart_msg[2],
-			coex->uart_msg[3], coex->uart_msg[4], coex->uart_msg[5],
-			coex->uart_msg[6], coex->uart_msg[7]);
+	iwlagn_print_uartmsg(priv, uart_msg);
 
 	priv->notif_bt_traffic_load = coex->bt_traffic_load;
 
@@ -481,14 +564,19 @@ static void iwl6000g2b_bt_coex_profile_notif(struct iwl_priv *priv,
 				   &priv->bt_traffic_change_work);
 		}
 
-		/* FIXME: add defines for this check */
-		priv->bt_sco_active = coex->uart_msg[3] & 1;
-		if (priv->bt_sco_active)
-			sco_cmd.flags |= IWL6000G2B_BT_SCO_ACTIVE;
-		iwl_send_cmd_pdu_async(priv, REPLY_BT_COEX_SCO,
+		if (priv->bt_sco_active !=
+		    (uart_msg->frame3 & BT_UART_MSG_FRAME3SCOESCO_MSK)) {
+			priv->bt_sco_active = uart_msg->frame3 &
+				BT_UART_MSG_FRAME3SCOESCO_MSK;
+			if (priv->bt_sco_active)
+				sco_cmd.flags |= IWL6000G2B_BT_SCO_ACTIVE;
+			iwl_send_cmd_pdu_async(priv, REPLY_BT_COEX_SCO,
 				       sizeof(sco_cmd), &sco_cmd, NULL);
+		}
 	}
 
+	iwl6000g2b_set_kill_ack_msk(priv, uart_msg);
+
 	/* FIXME: based on notification, adjust the prio_boost */
 
 	spin_lock_irqsave(&priv->lock, flags);