[PATCH v2 7/7] Bluetooth: MGMT start discovery LE-Only support
From: Andre Guedes <hidden>
Date: 2012-01-10 21:20:55
Subsystem:
bluetooth subsystem, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds
This patch adds LE-Only discovery procedure support to MGMT Start Discovery command. Signed-off-by: Andre Guedes <redacted> --- net/bluetooth/mgmt.c | 23 +++++++++++++++++++++-- 1 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index e7bbad8..05e6c1f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c@@ -35,7 +35,16 @@ #define MGMT_VERSION 0 #define MGMT_REVISION 1 -#define INQUIRY_LEN_BREDR 0x08 /* TGAP(100) */ +/* + * These LE scan and inquiry parameters were chosen according to LE General + * Discovery Procedure specification. + */ +#define LE_SCAN_TYPE 0x01 +#define LE_SCAN_WIN 0x12 +#define LE_SCAN_INT 0x12 +#define LE_SCAN_TIMEOUT_LE_ONLY 10240 /* TGAP(gen_disc_scan_min) */ + +#define INQUIRY_LEN_BREDR 0x08 /* TGAP(100) */ #define SERVICE_CACHE_TIMEOUT (5 * 1000)
@@ -1895,6 +1904,7 @@ static int start_discovery(struct sock *sk, u16 index, unsigned char *data, u16 len) { struct mgmt_cp_start_discovery *cp = (void *) data; + unsigned long discov_type = cp->type; struct pending_cmd *cmd; struct hci_dev *hdev; int err;
@@ -1930,7 +1940,16 @@ static int start_discovery(struct sock *sk, u16 index, goto failed; } - err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR); + if (test_bit(MGMT_ADDR_BREDR, &discov_type)) + err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR); + else if (test_bit(MGMT_ADDR_LE_PUBLIC, &discov_type) && + test_bit(MGMT_ADDR_LE_RANDOM, &discov_type)) + err = hci_do_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT, + LE_SCAN_WIN, LE_SCAN_TIMEOUT_LE_ONLY); + else + err = cmd_status(sk, index, MGMT_OP_START_DISCOVERY, + MGMT_STATUS_NOT_SUPPORTED); + if (err < 0) mgmt_pending_remove(cmd); else
--
1.7.8.1