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authorJohan Hedberg <johan.hedberg@nokia.com>2011-04-27 10:29:56 -0400
committerGustavo F. Padovan <padovan@profusion.mobi>2011-04-28 01:10:03 -0300
commit14a53664138a8407382745bb470045d1817b7801 (patch)
tree9a731741ee34c1d7ea5abdd290bc27cd45277753 /net/bluetooth
parentcf2f90f59bbf2c2a539d171cde6e1dfe72048555 (diff)
downloadlinux-14a53664138a8407382745bb470045d1817b7801.tar.bz2
Bluetooth: Add basic discovery commands to the management interface
This patch adds start_discovery and stop_discovery commands to the management interface. Right now their implementation is fairly simplistic and the parameters are fixed to what user space has defaulted to so far. This is the very initial phase for discovery implementation into the kernel. Next steps include name resolution, LE scanning and bdaddr type handling. Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com> Signed-off-by: Anderson Briglia <anderson.briglia@openbossa.org> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/mgmt.c76
1 files changed, 75 insertions, 1 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c304688252b8..dbc248f27b1b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1569,6 +1569,75 @@ static int remove_remote_oob_data(struct sock *sk, u16 index,
return err;
}
+static int start_discovery(struct sock *sk, u16 index)
+{
+ u8 lap[3] = { 0x33, 0x8b, 0x9e };
+ struct hci_cp_inquiry cp;
+ struct pending_cmd *cmd;
+ struct hci_dev *hdev;
+ int err;
+
+ BT_DBG("hci%u", index);
+
+ hdev = hci_dev_get(index);
+ if (!hdev)
+ return cmd_status(sk, index, MGMT_OP_START_DISCOVERY, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, index, NULL, 0);
+ if (!cmd) {
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ memset(&cp, 0, sizeof(cp));
+ memcpy(&cp.lap, lap, 3);
+ cp.length = 0x08;
+ cp.num_rsp = 0x00;
+
+ err = hci_send_cmd(hdev, HCI_OP_INQUIRY, sizeof(cp), &cp);
+ if (err < 0)
+ mgmt_pending_remove(cmd);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
+static int stop_discovery(struct sock *sk, u16 index)
+{
+ struct hci_dev *hdev;
+ struct pending_cmd *cmd;
+ int err;
+
+ BT_DBG("hci%u", index);
+
+ hdev = hci_dev_get(index);
+ if (!hdev)
+ return cmd_status(sk, index, MGMT_OP_STOP_DISCOVERY, ENODEV);
+
+ hci_dev_lock_bh(hdev);
+
+ cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, index, NULL, 0);
+ if (!cmd) {
+ err = -ENOMEM;
+ goto failed;
+ }
+
+ err = hci_send_cmd(hdev, HCI_OP_INQUIRY_CANCEL, 0, NULL);
+ if (err < 0)
+ mgmt_pending_remove(cmd);
+
+failed:
+ hci_dev_unlock_bh(hdev);
+ hci_dev_put(hdev);
+
+ return err;
+}
+
int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
{
unsigned char *buf;
@@ -1677,7 +1746,12 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
err = remove_remote_oob_data(sk, index, buf + sizeof(*hdr),
len);
break;
-
+ case MGMT_OP_START_DISCOVERY:
+ err = start_discovery(sk, index);
+ break;
+ case MGMT_OP_STOP_DISCOVERY:
+ err = stop_discovery(sk, index);
+ break;
default:
BT_DBG("Unknown op %u", opcode);
err = cmd_status(sk, index, opcode, 0x01);