This patch prepares start_discovery() to support LE-Only and BR/EDR/LE
discovery procedures (BR/EDR is already supported).
Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 1 +
include/net/bluetooth/hci_core.h | 1 +
net/bluetooth/mgmt.c | 10 +++++++++-
3 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index be30aab..653daec 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -202,6 +202,7 @@ enum {
#define LMP_EV4 0x01
#define LMP_EV5 0x02
+#define LMP_NO_BREDR 0x20
#define LMP_LE 0x40
#define LMP_SNIFF_SUBR 0x02
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 6c2b8b5..68178e1 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -615,6 +615,7 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
+#define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
/* ----- Extended LMP capabilities ----- */
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 31c3d2a..0a2c610 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -32,6 +32,8 @@
#define MGMT_VERSION 0
#define MGMT_REVISION 1
+#define INQUIRY_LEN_BREDR 0x08 /* TGAP(100) */
+
struct pending_cmd {
struct list_head list;
__u16 opcode;
@@ -1653,7 +1655,13 @@ static int start_discovery(struct sock *sk, u16 index)
goto failed;
}
- err = hci_do_inquiry(hdev, 0x08);
+ if (lmp_host_le_capable(hdev) && lmp_bredr_capable(hdev))
+ err = -ENOSYS;
+ else if (lmp_host_le_capable(hdev))
+ err = -ENOSYS;
+ else
+ err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR);
+
if (err < 0)
mgmt_pending_remove(cmd);
--
1.7.5.2
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