Bluetooth: MGMT: add CIS feature bits to controller information

Userspace needs to know whether the adapter has feature support for
Connected Isochronous Stream - Central/Peripheral, so it can set up
LE Audio features accordingly.

Expose these feature bits as settings in MGMT controller info.
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

include/net/bluetooth/mgmt.h

@@ -109,6 +109,8 @@ struct mgmt_rp_read_index_list {
 #define MGMT_SETTING_STATIC_ADDRESS	0x00008000
 #define MGMT_SETTING_PHY_CONFIGURATION	0x00010000
 #define MGMT_SETTING_WIDEBAND_SPEECH	0x00020000
+#define MGMT_SETTING_CIS_CENTRAL	0x00040000
+#define MGMT_SETTING_CIS_PERIPHERAL	0x00080000
 
 #define MGMT_OP_READ_INFO		0x0004
 #define MGMT_READ_INFO_SIZE		0

net/bluetooth/mgmt.c

@@ -859,6 +859,12 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 	    hdev->set_bdaddr)
 		settings |= MGMT_SETTING_CONFIGURATION;
 
+	if (cis_central_capable(hdev))
+		settings |= MGMT_SETTING_CIS_CENTRAL;
+
+	if (cis_peripheral_capable(hdev))
+		settings |= MGMT_SETTING_CIS_PERIPHERAL;
+
 	settings |= MGMT_SETTING_PHY_CONFIGURATION;
 
 	return settings;
@@ -932,6 +938,12 @@ static u32 get_current_settings(struct hci_dev *hdev)
 	if (hci_dev_test_flag(hdev, HCI_WIDEBAND_SPEECH_ENABLED))
 		settings |= MGMT_SETTING_WIDEBAND_SPEECH;
 
+	if (cis_central_capable(hdev))
+		settings |= MGMT_SETTING_CIS_CENTRAL;
+
+	if (cis_peripheral_capable(hdev))
+		settings |= MGMT_SETTING_CIS_PERIPHERAL;
+
 	return settings;
 }