[PATCH 4/8] Bluetooth: Add Write Synchronization Train Parameters Command

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From: DoHyun Pyun <dh79.pyun@xxxxxxxxxxx>

The Write_Synchronization_Train_Parameters command configures
the Synchronization Train functionality in the BR/EDR Controller.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 97

"7.3.90 Write Synchronization Train Parameters Command [New Section]
...
Note: The AFH_Channel_Map used in the Synchronization Train packets is
configured by the Set_AFH_Channel_Classification command and the local
channel classification in the BR/EDR Controller.

Interval_Min and Interval_Max specify the allowed range of
Sync_Train_Interval. Refer to [Vol. 2], Part B, section 2.7.2 for
a detailed description of Sync_Train_Interval. The BR/EDR Controller shall
select an interval from this range and return it in Sync_Train_Interval.
If the Controller is unable to select a value from this range, it shall
return the Invalid HCI Command Parameters (0x12) error code.

Once started (via the Start_Synchronization_Train Command) the
Synchronization Train will continue until synchronization_trainTO slots have
passed or Connectionless Slave Broadcast has been disabled."

Signed-off-by: Dohyun Pyun <dh79.pyun@xxxxxxxxxxx>
Signed-off-by: C S Bhargava <cs.bhargava@xxxxxxxxxxx>
---
 include/net/bluetooth/hci.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index d5a0da0..6579bd3 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -870,6 +870,18 @@ struct hci_rp_set_clb_data {
 	__u8 lt_addr;
 } __packed;
 
+#define HCI_OP_WRITE_SYNC_TRAIN_PARAMS	0x0c78
+struct hci_cp_write_sync_train_params {
+	__le16 interval_min;
+	__le16 interval_max;
+	__le32 sync_train_tout;
+	__u8 service_data;
+} __packed;
+struct hci_rp_write_sync_train_params {
+	__u8 status;
+	__le16 sync_train_int;
+} __packed;
+
 #define HCI_OP_READ_SYNC_TRAIN_PARAMS	0x0c77
 
 #define HCI_OP_READ_LOCAL_VERSION	0x1001
-- 
1.8.1.2

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