[PATCH v3] Bluetooth: Add socket option definitions for AMP

[Mat Martineau <mathewm@codeaurora.org>]

This adds a new BT_AMP socket option to control the use of AMP channels.
It is for use with the SOL_BLUETOOTH option level on L2CAP sockets.

Available option values are defined as:

BT_AMP_REQUIRE_BR_EDR
 * Default
 * AMP controllers cannot be used
 * Channel move requests from the remote device are denied
 * If the L2CAP channel is currently using AMP, move the channel to
   BR/EDR

BT_AMP_PREFER_AMP
 * Allow use of AMP controllers
 * If the L2CAP channel is currently on BR/EDR and AMP controller
   resources are available, initiate a channel move to AMP
 * Channel move requests from the remote device are allowed
 * If the L2CAP socket has not been connected yet, try to create
   and configure the channel directly on an AMP controller rather
   than BR/EDR

BT_AMP_PREFER_BR_EDR
 * Allow use of AMP controllers
 * If the L2CAP channel is currently on AMP, move it to BR/EDR
 * Channel move requests from the remote device are allowed

Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
---
 include/net/bluetooth/bluetooth.h |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 27a902d..d2c62dc 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -64,6 +64,34 @@ struct bt_security {
 
 #define BT_DEFER_SETUP	7
 
+
+#define BT_AMP_POLICY		8
+
+/* Require BR/EDR (default policy)
+ *   AMP controllers cannot be used
+ *   Channel move requests from the remote device are denied
+ *   If the L2CAP channel is currently using AMP, move the channel to BR/EDR
+ */
+#define BT_AMP_POLICY_REQUIRE_BR_EDR	0
+
+/* Prefer AMP
+ *   Allow use of AMP controllers
+ *   If the L2CAP channel is currently on BR/EDR and AMP controller
+ *     resources are available, initiate a channel move to AMP
+ *   Channel move requests from the remote device are allowed
+ *   If the L2CAP socket has not been connected yet, try to create
+ *     and configure the channel directly on an AMP controller rather
+ *     than BR/EDR
+ */
+#define BT_AMP_POLICY_PREFER_AMP	1
+
+/* Prefer BR/EDR
+ *   Allow use of AMP controllers
+ *   If the L2CAP channel is currently on AMP, move it to BR/EDR
+ *   Channel move requests from the remote device are allowed
+ */
+#define BT_AMP_POLICY_PREFER_BR_EDR	2
+
 #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
 #define BT_ERR(fmt, arg...)  printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg)
 #define BT_DBG(fmt, arg...)  pr_debug("%s: " fmt "\n" , __func__ , ## arg)
-- 
1.7.1