This patch adds a new command to management interface to enable/
disable LE support. This command will be used to set LE support
according to the host configuration.
Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 1 +
include/net/bluetooth/hci_core.h | 1 +
include/net/bluetooth/mgmt.h | 5 +++
net/bluetooth/hci_event.c | 2 +
net/bluetooth/mgmt.c | 73 ++++++++++++++++++++++++++++++++++++++
5 files changed, 82 insertions(+), 0 deletions(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index c4f595c..35b3109 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -211,6 +211,7 @@ enum {
#define LMP_EDR_3S_ESCO 0x80
#define LMP_EXT_INQ 0x01
+#define LMP_SIMUL_LE_BR 0x02
#define LMP_SIMPLE_PAIR 0x08
#define LMP_NO_FLUSH 0x40
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index cd65f0e..00cbe03 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -835,6 +835,7 @@ int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
u8 *eir);
int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
int mgmt_discovering(u16 index, u8 discovering);
+int mgmt_set_le_support_complete(u16 index, u8 status);
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 45bea25..880b2e2 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -209,6 +209,11 @@ struct mgmt_cp_unblock_device {
bdaddr_t bdaddr;
} __packed;
+#define MGMT_OP_SET_LE_SUPPORT 0x001F
+struct mgmt_cp_set_le_support {
+ __u8 enable_le;
+} __packed;
+
#define MGMT_EV_CMD_COMPLETE 0x0001
struct mgmt_ev_cmd_complete {
__le16 opcode;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index afe1bc8..a2195ff 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -917,6 +917,8 @@ static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
BT_DBG("%s status 0x%x", hdev->name, status);
+ mgmt_set_le_support_complete(hdev->id, status);
+
if (status)
return;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 64c0418..748b8bb 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1730,6 +1730,54 @@ static int unblock_device(struct sock *sk, u16 index, unsigned char *data,
return err;
}
+static int set_le_support(struct sock *sk, u16 index, unsigned char *data,
+ u16 len)
+{
+ struct mgmt_cp_set_le_support *mgmt_cp = (void *) data;
+ struct hci_cp_write_le_host_supported hci_cp;
+ struct pending_cmd *cmd;
+ struct hci_dev *hdev;
+ int err;
+
+ BT_DBG("hci%u ", index);
+
+ if (len != sizeof(*mgmt_cp))
+ return cmd_status(sk, index, MGMT_OP_SET_LE_SUPPORT, EINVAL);
+
+ if (mgmt_pending_find(MGMT_OP_SET_LE_SUPPORT, index))
+ return cmd_status(sk, index, MGMT_OP_SET_LE_SUPPORT,
+ EINPROGRESS);
+
+ hdev = hci_dev_get(index);
+ if (!hdev)
+ return cmd_status(sk, index, MGMT_OP_SET_LE_SUPPORT, ENODEV);
+
+ if (mgmt_cp->enable_le && !lmp_le_capable(hdev)) {
+ err = cmd_status(sk, index, MGMT_OP_SET_LE_SUPPORT,
+ EOPNOTSUPP);
+ goto failed;
+ }
+
+ cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE_SUPPORT, index, data, len);
+ if (!cmd) {
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ hci_cp.le = mgmt_cp->enable_le;
+ hci_cp.simul = (hdev->features[6] & LMP_SIMUL_LE_BR) ? 0x01 : 0x00;
+
+ err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED,
+ sizeof(hci_cp), &hci_cp);
+ if (err < 0)
+ mgmt_pending_remove(cmd);
+
+failed:
+ hci_dev_put(hdev);
+
+ return err;
+}
+
int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
{
unsigned char *buf;
@@ -1850,6 +1898,9 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
case MGMT_OP_UNBLOCK_DEVICE:
err = unblock_device(sk, index, buf + sizeof(*hdr), len);
break;
+ case MGMT_OP_SET_LE_SUPPORT:
+ err = set_le_support(sk, index, buf + sizeof(*hdr), len);
+ break;
default:
BT_DBG("Unknown op %u", opcode);
err = cmd_status(sk, index, opcode, 0x01);
@@ -2256,3 +2307,25 @@ int mgmt_discovering(u16 index, u8 discovering)
return mgmt_event(MGMT_EV_DISCOVERING, index, &discovering,
sizeof(discovering), NULL);
}
+
+int mgmt_set_le_support_complete(u16 index, u8 status)
+{
+ struct pending_cmd *cmd;
+ int err;
+
+ cmd = mgmt_pending_find(MGMT_OP_SET_LE_SUPPORT, index);
+ if (!cmd)
+ return -ENOENT;
+
+ if (status) {
+ err = cmd_status(cmd->sk, index, MGMT_OP_SET_LE_SUPPORT, EIO);
+ goto out;
+ }
+
+ err = cmd_complete(cmd->sk, index, MGMT_OP_SET_LE_SUPPORT, NULL, 0);
+
+out:
+ mgmt_pending_remove(cmd);
+
+ return err;
+}
--
1.7.4.1
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