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authorAndrzej Kaczmarek <andrzej.kaczmarek@tieto.com>2014-05-08 15:32:08 +0200
committerMarcel Holtmann <marcel@holtmann.org>2014-05-08 08:01:57 -0700
commit5ae76a94150c86a6e0ee84eb74e7f7e1909b8d39 (patch)
tree4abcdb2d73127eabb1f6d48af20b37cb7725e69b
parent38e4a915663f3f3c03b753d90a34fbb6164ea55d (diff)
downloadlinux-5ae76a94150c86a6e0ee84eb74e7f7e1909b8d39.tar.bz2
Bluetooth: Store RSSI for connection
This patch adds support to store RSSI for connection when reply for HCI_Read_RSSI is received. Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
-rw-r--r--include/net/bluetooth/hci.h10
-rw-r--r--include/net/bluetooth/hci_core.h1
-rw-r--r--net/bluetooth/hci_event.c23
3 files changed, 34 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 4261a67682c0..ad2ecc92380d 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1064,6 +1064,16 @@ struct hci_rp_read_page_scan_type {
#define PAGE_SCAN_TYPE_STANDARD 0x00
#define PAGE_SCAN_TYPE_INTERLACED 0x01
+#define HCI_OP_READ_RSSI 0x1405
+struct hci_cp_read_rssi {
+ __le16 handle;
+} __packed;
+struct hci_rp_read_rssi {
+ __u8 status;
+ __le16 handle;
+ __s8 rssi;
+} __packed;
+
#define HCI_OP_READ_LOCAL_AMP_INFO 0x1409
struct hci_rp_read_local_amp_info {
__u8 status;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index d73f41855ada..0318d5263837 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -374,6 +374,7 @@ struct hci_conn {
__u16 setting;
__u16 le_conn_min_interval;
__u16 le_conn_max_interval;
+ __s8 rssi;
unsigned long flags;
__u8 remote_cap;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 07c37d0cecb2..2bb0053d4c45 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1245,6 +1245,25 @@ static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
amp_write_rem_assoc_continue(hdev, rp->phy_handle);
}
+static void hci_cc_read_rssi(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_rp_read_rssi *rp = (void *) skb->data;
+ struct hci_conn *conn;
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+ if (rp->status)
+ return;
+
+ hci_dev_lock(hdev);
+
+ conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rp->handle));
+ if (conn)
+ conn->rssi = rp->rssi;
+
+ hci_dev_unlock(hdev);
+}
+
static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
BT_DBG("%s status 0x%2.2x", hdev->name, status);
@@ -2637,6 +2656,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_cc_write_remote_amp_assoc(hdev, skb);
break;
+ case HCI_OP_READ_RSSI:
+ hci_cc_read_rssi(hdev, skb);
+ break;
+
default:
BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode);
break;