Bluetooth: Process num completed data blocks event

Adds support for Number Of Completed Data Blocks Event.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 089dff80ccb0..0466ed9c1b47 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2408,6 +2408,56 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s
         queue_work(hdev->workqueue, &hdev->tx_work);
 }
 
+static inline void hci_num_comp_blocks_evt(struct hci_dev *hdev,
+                                                        struct sk_buff *skb)
+{
+        struct hci_ev_num_comp_blocks *ev = (void *) skb->data;
+        int i;
+
+        if (hdev->flow_ctl_mode != HCI_FLOW_CTL_MODE_BLOCK_BASED) {
+                BT_ERR("Wrong event for mode %d", hdev->flow_ctl_mode);
+                return;
+        }
+
+        if (skb->len < sizeof(*ev) || skb->len < sizeof(*ev) +
+                        ev->num_hndl * sizeof(struct hci_comp_blocks_info)) {
+                BT_DBG("%s bad parameters", hdev->name);
+                return;
+        }
+
+        BT_DBG("%s num_blocks %d num_hndl %d", hdev->name, ev->num_blocks,
+                                                                ev->num_hndl);
+
+        for (i = 0; i < ev->num_hndl; i++) {
+                struct hci_comp_blocks_info *info = &ev->handles[i];
+                struct hci_conn *conn;
+                __u16  handle, block_count;
+
+                handle = __le16_to_cpu(info->handle);
+                block_count = __le16_to_cpu(info->blocks);
+
+                conn = hci_conn_hash_lookup_handle(hdev, handle);
+                if (!conn)
+                        continue;
+
+                conn->sent -= block_count;
+
+                switch (conn->type) {
+                case ACL_LINK:
+                        hdev->block_cnt += block_count;
+                        if (hdev->block_cnt > hdev->num_blocks)
+                                hdev->block_cnt = hdev->num_blocks;
+                        break;
+
+                default:
+                        BT_ERR("Unknown type %d conn %p", conn->type, conn);
+                        break;
+                }
+        }
+
+        queue_work(hdev->workqueue, &hdev->tx_work);
+}
+
 static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
         struct hci_ev_mode_change *ev = (void *) skb->data;
@@ -3386,6 +3436,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
                 hci_remote_oob_data_request_evt(hdev, skb);
                 break;
 
+        case HCI_EV_NUM_COMP_BLOCKS:
+                hci_num_comp_blocks_evt(hdev, skb);
+                break;
+
         default:
                 BT_DBG("%s event 0x%x", hdev->name, event);
                 break;