Bluetooth: Add HCI Read Data Block Size function

Implement block size read function. Use different variables for
packet-based and block-based flow control.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

1 files changed, 26 insertions, 0 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 74f758363c2d..48796832fdf0 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -767,6 +767,28 @@ static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
         hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, rp->status);
 }
 
+static void hci_cc_read_data_block_size(struct hci_dev *hdev,
+                                                        struct sk_buff *skb)
+{
+        struct hci_rp_read_data_block_size *rp = (void *) skb->data;
+
+        BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+        if (rp->status)
+                return;
+
+        hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
+        hdev->block_len = __le16_to_cpu(rp->block_len);
+        hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
+
+        hdev->block_cnt = hdev->num_blocks;
+
+        BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
+                                        hdev->block_cnt, hdev->block_len);
+
+        hci_req_complete(hdev, HCI_OP_READ_DATA_BLOCK_SIZE, rp->status);
+}
+
 static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
 {
         __u8 status = *((__u8 *) skb->data);
@@ -2018,6 +2040,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
                 hci_cc_read_bd_addr(hdev, skb);
                 break;
 
+        case HCI_OP_READ_DATA_BLOCK_SIZE:
+                hci_cc_read_data_block_size(hdev, skb);
+                break;
+
         case HCI_OP_WRITE_CA_TIMEOUT:
                 hci_cc_write_ca_timeout(hdev, skb);
                 break;