Bluetooth: Read number of supported IAC on controller setup

When initializing a controller make sure to read out the number of
supported IAC and store its result. This value is needed to determine
if limited discoverable for BR/EDR can be configured or not.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

1 files changed, 19 insertions, 0 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index da2bc3d3d289..5391469ff1a5 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -418,6 +418,21 @@ static void hci_cc_write_voice_setting(struct hci_dev *hdev,
                 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 }
 
+static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
+                                          struct sk_buff *skb)
+{
+        struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
+
+        BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+        if (rp->status)
+                return;
+
+        hdev->num_iac = rp->num_iac;
+
+        BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
+}
+
 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 {
         __u8 status = *((__u8 *) skb->data);
@@ -2135,6 +2150,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
                 hci_cc_write_voice_setting(hdev, skb);
                 break;
 
+        case HCI_OP_READ_NUM_SUPPORTED_IAC:
+                hci_cc_read_num_supported_iac(hdev, skb);
+                break;
+
         case HCI_OP_WRITE_SSP_MODE:
                 hci_cc_write_ssp_mode(hdev, skb);
                 break;