Bluetooth: HCI: Add support for LL Extended Feature Set

This adds support for emulating LL Extended Feature Set introduced in 6.0
that adds the following:

Commands:

 - HCI_LE_Read_All_Local_Supported_­Features(0x2087)(Feature:47,1)
 - HCI_LE_Read_All_Remote_Features(0x2088)(Feature:47,2)

Events:

 - HCI_LE_Read_All_Remote_Features_Complete(0x2b)(Mask bit:42)

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

3 files changed, 29 insertions, 1 deletions

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index d883ad233ebc..a27cd3626b87 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -653,6 +653,7 @@ enum {
 #define HCI_LE_CIS_PERIPHERAL		0x20
 #define HCI_LE_ISO_BROADCASTER		0x40
 #define HCI_LE_ISO_SYNC_RECEIVER	0x80
+#define HCI_LE_LL_EXT_FEATURE		0x80
 
 /* Connection modes */
 #define HCI_CM_ACTIVE	0x0000
@@ -2255,6 +2256,19 @@ struct hci_cp_le_set_host_feature {
 	__u8     bit_value;
 } __packed;
 
+#define HCI_OP_LE_READ_ALL_LOCAL_FEATURES	0x2087
+struct hci_rp_le_read_all_local_features {
+	__u8    status;
+	__u8    page;
+	__u8    features[248];
+} __packed;
+
+#define HCI_OP_LE_READ_ALL_REMOTE_FEATURES	0x2088
+struct hci_cp_le_read_all_remote_features {
+	__le16	 handle;
+	__u8	 pages;
+} __packed;
+
 /* ---- HCI Events ---- */
 struct hci_ev_status {
 	__u8    status;
@@ -2937,6 +2951,15 @@ struct hci_evt_le_big_info_adv_report {
 	__u8    encryption;
 } __packed;
 
+#define HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE 0x2b
+struct hci_evt_le_read_all_remote_features_complete {
+	__u8    status;
+	__le16  handle;
+	__u8    max_pages;
+	__u8    valid_pages;
+	__u8    features[248];
+} __packed;
+
 #define HCI_EV_VENDOR			0xff
 
 /* Internal events generated by Bluetooth stack */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 858b58206e80..4263e71a23ef 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -378,7 +378,7 @@ struct hci_dev {
 	__u8		minor_class;
 	__u8		max_page;
 	__u8		features[HCI_MAX_PAGES][8];
-	__u8		le_features[8];
+	__u8		le_features[248];
 	__u8		le_accept_list_size;
 	__u8		le_resolv_list_size;
 	__u8		le_num_of_adv_sets;
@@ -702,6 +702,7 @@ struct hci_conn {
 	__u8		attempt;
 	__u8		dev_class[3];
 	__u8		features[HCI_MAX_PAGES][8];
+	__u8		le_features[248];
 	__u16		pkt_type;
 	__u16		link_policy;
 	__u8		key_type;
@@ -2067,6 +2068,8 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 	(le_enabled(dev) && past_receiver_capable(dev))
 #define past_enabled(dev) \
 	(past_sender_enabled(dev) || past_receiver_enabled(dev))
+#define ll_ext_feature_capable(dev) \
+	((dev)->le_features[7] & HCI_LE_LL_EXT_FEATURE)
 
 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
 	(!hci_test_quirk((dev), HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG)))
diff --git a/include/net/bluetooth/hci_sync.h b/include/net/bluetooth/hci_sync.h
index 3133f40fa9f9..56076bbc981d 100644
--- a/include/net/bluetooth/hci_sync.h
+++ b/include/net/bluetooth/hci_sync.h
@@ -189,3 +189,5 @@ int hci_le_conn_update_sync(struct hci_dev *hdev, struct hci_conn *conn,
 int hci_connect_pa_sync(struct hci_dev *hdev, struct hci_conn *conn);
 int hci_connect_big_sync(struct hci_dev *hdev, struct hci_conn *conn);
 int hci_past_sync(struct hci_conn *conn, struct hci_conn *le);
+
+int hci_le_read_remote_features(struct hci_conn *conn);