Embedded device may need flexible option to reduce the code size
and memory use
Signed-off-by: Arron Wang <arron.wang@xxxxxxxxx>
---
include/net/bluetooth/bluetooth.h | 11 +++++++++++
include/net/bluetooth/hci_core.h | 13 +++++++++++++
net/bluetooth/Kconfig | 10 +++++++++-
net/bluetooth/Makefile | 3 ++-
4 files changed, 35 insertions(+), 2 deletions(-)
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 7dba805..f085ff14 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -365,8 +365,19 @@ extern struct dentry *bt_debugfs;
int l2cap_init(void);
void l2cap_exit(void);
+#if IS_ENABLED(CONFIG_BT_SCO)
int sco_init(void);
void sco_exit(void);
+#else
+static inline int sco_init(void)
+{
+ return 0;
+}
+
+static inline void sco_exit(void)
+{
+}
+#endif
int mgmt_init(void);
void mgmt_exit(void);
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index a056c2b..7c70034 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -532,8 +532,21 @@ int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
int l2cap_disconn_ind(struct hci_conn *hcon);
int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
+#if IS_ENABLED(CONFIG_BT_SCO)
int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
+#else
+static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
+ __u8 *flags)
+{
+ return 0;
+}
+
+static inline int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
+{
+ return 0;
+}
+#endif
/* ----- Inquiry cache ----- */
#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index b8c794b..e7bca37 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -23,10 +23,10 @@ menuconfig BT
Linux Bluetooth subsystem consist of several layers:
Bluetooth Core
HCI device and connection manager, scheduler
- SCO audio links
L2CAP (Logical Link Control and Adaptation Protocol)
SMP (Security Manager Protocol) on LE (Low Energy) links
HCI Device drivers (Interface to the hardware)
+ SCO Module (SCO audio links)
RFCOMM Module (RFCOMM Protocol)
BNEP Module (Bluetooth Network Encapsulation Protocol)
CMTP Module (CAPI Message Transport Protocol)
@@ -45,6 +45,14 @@ config BT_BREDR
depends on BT
default y
+config BT_SCO
+ bool "Bluetooth SCO support"
+ depends on BT_BREDR
+ default y
+ help
+ SCO link provides voice transport over Bluetooth. SCO support is
+ required for voice applications like Headset and Audio.
+
source "net/bluetooth/rfcomm/Kconfig"
source "net/bluetooth/bnep/Kconfig"
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index 9a8ea23..21fe57a 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -12,9 +12,10 @@ obj-$(CONFIG_BT_6LOWPAN) += bluetooth_6lowpan.o
bluetooth_6lowpan-y := 6lowpan.o
bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
- hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \
+ hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o lib.o \
a2mp.o amp.o ecc.o hci_request.o mgmt_util.o
+bluetooth-$(CONFIG_BT_SCO) += sco.o
bluetooth-$(CONFIG_BT_DEBUGFS) += hci_debugfs.o
bluetooth-$(CONFIG_BT_SELFTEST) += selftest.o
--
1.7.9.5
--
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