From 7b75ff3c3f0b0014dd22c1db05ca916cd4b886e8 Mon Sep 17 00:00:00 2001
From: Nick Pelly <npelly@google.com>
Date: Wed, 9 Dec 2009 00:15:41 -0800
Subject: [PATCH] Bluetooth: Add ACL MTU, available buffers and total buffers
to hci_conn_info.
This provides userspace debugging tools access to ACL flow control state.
Signed-off-by: Nick Pelly <npelly@google.com>
---
include/net/bluetooth/hci.h | 3 +++
net/bluetooth/hci_conn.c | 18 ++++++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ed3aea1605e8..b2d8a99e5177 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -991,6 +991,9 @@ struct hci_conn_info {
__u8 out;
__u16 state;
__u32 link_mode;
+ __u32 mtu;
+ __u32 cnt;
+ __u32 pkts;
};
struct hci_dev_req {
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index b10e3cdb08f8..0cf25114a3f5 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -639,6 +639,15 @@ int hci_get_conn_list(void __user *arg)
(ci + n)->out = c->out;
(ci + n)->state = c->state;
(ci + n)->link_mode = c->link_mode;
+ if (c->type == SCO_LINK) {
+ (ci + n)->mtu = hdev->sco_mtu;
+ (ci + n)->cnt = hdev->sco_cnt;
+ (ci + n)->pkts = hdev->sco_pkts;
+ } else {
+ (ci + n)->mtu = hdev->acl_mtu;
+ (ci + n)->cnt = hdev->acl_cnt;
+ (ci + n)->pkts = hdev->acl_pkts;
+ }
if (++n >= req.conn_num)
break;
}
@@ -675,6 +684,15 @@ int hci_get_conn_info(struct hci_dev *hdev, void __user *arg)
ci.out = conn->out;
ci.state = conn->state;
ci.link_mode = conn->link_mode;
+ if (req.type == SCO_LINK) {
+ ci.mtu = hdev->sco_mtu;
+ ci.cnt = hdev->sco_cnt;
+ ci.pkts = hdev->sco_pkts;
+ } else {
+ ci.mtu = hdev->acl_mtu;
+ ci.cnt = hdev->acl_cnt;
+ ci.pkts = hdev->acl_pkts;
+ }
}
hci_dev_unlock_bh(hdev);
--
2.34.1