From 1efd927d660e6ab02a9cd32fbbe3c7dc47980132 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Thu, 2 Jan 2020 15:00:55 -0800
Subject: [PATCH] Bluetooth: Add support for LE PHY Update Complete event
Git-commit: 1efd927d660e6ab02a9cd32fbbe3c7dc47980132
Patch-mainline: v5.6-rc1
References: jsc#SLE-13430

This handles LE PHY Update Complete event and store both tx_phy and
rx_phy into hci_conn.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 include/net/bluetooth/hci.h      |  8 ++++++++
 include/net/bluetooth/hci_core.h |  2 ++
 net/bluetooth/hci_event.c        | 27 +++++++++++++++++++++++++++
 3 files changed, 37 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 5bc1e30dedde..07b6ecedc6ce 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -2186,6 +2186,14 @@ struct hci_ev_le_direct_adv_info {
 	__s8	 rssi;
 } __packed;
 
+#define HCI_EV_LE_PHY_UPDATE_COMPLETE	0x0c
+struct hci_ev_le_phy_update_complete {
+	__u8  status;
+	__u16 handle;
+	__u8  tx_phy;
+	__u8  rx_phy;
+} __packed;
+
 #define HCI_EV_LE_EXT_ADV_REPORT    0x0d
 struct hci_ev_le_ext_adv_report {
 	__le16 	 evt_type;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b689aceb636b..faebe3859931 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -493,6 +493,8 @@ struct hci_conn {
 	__u16		le_supv_timeout;
 	__u8		le_adv_data[HCI_MAX_AD_LENGTH];
 	__u8		le_adv_data_len;
+	__u8		le_tx_phy;
+	__u8		le_rx_phy;
 	__s8		rssi;
 	__s8		tx_power;
 	__s8		max_tx_power;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 1941f120a376..6ddc4a74a5e4 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -5718,6 +5718,29 @@ static void hci_le_direct_adv_report_evt(struct hci_dev *hdev,
 	hci_dev_unlock(hdev);
 }
 
+static void hci_le_phy_update_evt(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_ev_le_phy_update_complete *ev = (void *) skb->data;
+	struct hci_conn *conn;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, ev->status);
+
+	if (!ev->status)
+		return;
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
+	if (!conn)
+		goto unlock;
+
+	conn->le_tx_phy = ev->tx_phy;
+	conn->le_rx_phy = ev->rx_phy;
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
 static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_le_meta *le_ev = (void *) skb->data;
@@ -5753,6 +5776,10 @@ static void hci_le_meta_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_le_direct_adv_report_evt(hdev, skb);
 		break;
 
+	case HCI_EV_LE_PHY_UPDATE_COMPLETE:
+		hci_le_phy_update_evt(hdev, skb);
+		break;
+
 	case HCI_EV_LE_EXT_ADV_REPORT:
 		hci_le_ext_adv_report_evt(hdev, skb);
 		break;
-- 
2.16.4