Bluetooth: Add management command for setting LE scan parameters

The scan interval and window parameters are used for LE passive
background scanning and connection establishment. This allows
userspace to change the values.

These two values should be kept in sync with whatever is used for
the scan parameters service on remote devices. And it puts the
controlling daemon (for example bluetoothd) in charge of setting
the values.

Main use case would be to switch between two sets of values. One
for foreground applications and one for background applications.

At this moment, the values are only used for manual connection
establishment, but soon that should be extended to background
scanning and automatic connection establishment.

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

1 files changed, 7 insertions, 0 deletions

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 2ad433bb9a2e..518c5c84e39a 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -362,6 +362,13 @@ struct mgmt_cp_set_static_address {
 } __packed;
 #define MGMT_SET_STATIC_ADDRESS_SIZE    6
 
+#define MGMT_OP_SET_SCAN_PARAMS         0x002C
+struct mgmt_cp_set_scan_params {
+        __le16  interval;
+        __le16  window;
+} __packed;
+#define MGMT_SET_SCAN_PARAMS_SIZE       4
+
 #define MGMT_EV_CMD_COMPLETE            0x0001
 struct mgmt_ev_cmd_complete {
         __le16  opcode;