Bluetooth: Read host suggested default le data length

[platform/kernel/linux-rpi.git] / net / bluetooth / mgmt.c

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3819a41..175553d 100644 (file)
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -8341,6 +8341,85 @@ unlock:
 
        return err;
 }
+
+void mgmt_le_read_host_suggested_data_length_complete(struct hci_dev *hdev,
+               u8 status)
+{
+       struct mgmt_pending_cmd *cmd;
+       struct mgmt_rp_le_read_host_suggested_data_length rp;
+
+       BT_DBG("%s status %u", hdev->name, status);
+
+       cmd = pending_find(MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH, hdev);
+       if (!cmd) {
+               BT_ERR("cmd not found in the pending list");
+               return;
+       }
+
+       if (status)
+               mgmt_cmd_status(cmd->sk, hdev->id,
+                       MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH,
+                       mgmt_status(status));
+
+       memset(&rp, 0, sizeof(rp));
+
+       rp.def_tx_octets = cpu_to_le16(hdev->le_def_tx_len);
+       rp.def_tx_time = cpu_to_le16(hdev->le_def_tx_time);
+
+       mgmt_cmd_complete(cmd->sk, hdev->id,
+                         MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH, 0,
+                         &rp, sizeof(rp));
+
+       mgmt_pending_remove(cmd);
+}
+
+static int read_host_suggested_data_length(struct sock *sk,
+               struct hci_dev *hdev, void *data, u16 len)
+{
+       struct mgmt_pending_cmd *cmd;
+       int err;
+
+       BT_DBG("read_host_suggested_data_length %s", hdev->name);
+
+       hci_dev_lock(hdev);
+
+       if (!hdev_is_powered(hdev)) {
+               err = mgmt_cmd_status(sk, hdev->id,
+                               MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH,
+                               MGMT_STATUS_NOT_POWERED);
+               goto unlock;
+       }
+
+       if (!lmp_le_capable(hdev)) {
+               err = mgmt_cmd_status(sk, hdev->id,
+                               MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH,
+                               MGMT_STATUS_NOT_SUPPORTED);
+               goto unlock;
+       }
+
+       if (pending_find(MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH, hdev)) {
+               err = mgmt_cmd_status(sk, hdev->id,
+                               MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH,
+                               MGMT_STATUS_BUSY);
+               goto unlock;
+       }
+
+       cmd = mgmt_pending_add(sk, MGMT_OP_LE_READ_HOST_SUGGESTED_DATA_LENGTH,
+                              hdev, data, len);
+       if (!cmd) {
+               err = -ENOMEM;
+               goto unlock;
+       }
+
+       err = hci_send_cmd(hdev, HCI_OP_LE_READ_DEF_DATA_LEN, 0, NULL);
+       if (err < 0)
+               mgmt_pending_remove(cmd);
+
+unlock:
+       hci_dev_unlock(hdev);
+
+       return err;
+}
 #endif /* TIZEN_BT */
 
 static bool ltk_is_valid(struct mgmt_ltk_info *key)
@@ -10760,6 +10839,8 @@ static const struct hci_mgmt_handler tizen_mgmt_handlers[] = {
                                   MGMT_LE_READ_MAXIMUM_DATA_LENGTH_SIZE },
        { write_host_suggested_le_data_length,
                                   MGMT_LE_WRITE_HOST_SUGGESTED_DATA_LENGTH_SIZE },
+       { read_host_suggested_data_length,
+                                  MGMT_LE_READ_HOST_SUGGESTED_DATA_LENGTH_SIZE },
 };
 #endif