Piteball
/
android_kernel_samsung_msm8976
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
1
1
Fork 0
Code Issues Projects Releases Wiki Activity

Bluetooth: mgmt: Add device disconnect reason 

MGMT_EV_DEVICE_DISCONNECTED will now expose the disconnection reason to
userland, distinguishing four possible values:

	0x00	Reason not known or unspecified
	0x01	Connection timeout
	0x02	Connection terminated by local host
	0x03	Connection terminated by remote host

Note that the local/remote distinction just determines which side
terminated the low-level connection, regardless of the disconnection of
the higher-level profiles.

This can sometimes be misleading and thus must be used with care. For
example, some hardware combinations would report a locally initiated
disconnection even if the user turned Bluetooth off in the remote side.

Signed-off-by: Mikel Astiz <mikel.astiz@bmw-carit.de>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Mikel Astiz 2012-08-09 09:52:30 +02:00 committed by Gustavo Padovan
parent fa1bd91809
commit f0d6a0ea33
4 changed files with 38 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/bluetooth/hci_core.h
View File

@ -1002,7 +1002,7 @@ int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
u8 addr_type, u32 flags, u8 *name, u8 name_len,
u8 *dev_class);
int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 link_type, u8 addr_type);
u8 link_type, u8 addr_type, u8 reason);
int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 link_type, u8 addr_type, u8 status);
int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,

9
include/net/bluetooth/mgmt.h
View File

@ -405,7 +405,16 @@ struct mgmt_ev_device_connected {
__u8 eir[0];
} __packed;
#define MGMT_DEV_DISCONN_UNKNOWN 0x00
#define MGMT_DEV_DISCONN_TIMEOUT 0x01
#define MGMT_DEV_DISCONN_LOCAL_HOST 0x02
#define MGMT_DEV_DISCONN_REMOTE 0x03
#define MGMT_EV_DEVICE_DISCONNECTED 0x000C
struct mgmt_ev_device_disconnected {
struct mgmt_addr_info addr;
__u8 reason;
} __packed;
#define MGMT_EV_CONNECT_FAILED 0x000D
struct mgmt_ev_connect_failed {

26
net/bluetooth/hci_event.c
View File

@ -29,6 +29,7 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/mgmt.h>
/* Handle HCI Event packets */
@ -1875,6 +1876,22 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
}
}
static u8 hci_to_mgmt_reason(u8 err)
{
switch (err) {
case HCI_ERROR_CONNECTION_TIMEOUT:
return MGMT_DEV_DISCONN_TIMEOUT;
case HCI_ERROR_REMOTE_USER_TERM:
case HCI_ERROR_REMOTE_LOW_RESOURCES:
case HCI_ERROR_REMOTE_POWER_OFF:
return MGMT_DEV_DISCONN_REMOTE;
case HCI_ERROR_LOCAL_HOST_TERM:
return MGMT_DEV_DISCONN_LOCAL_HOST;
default:
return MGMT_DEV_DISCONN_UNKNOWN;
}
}
static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
{
struct hci_ev_disconn_complete *ev = (void *) skb->data;
@ -1893,12 +1910,15 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
if (test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags) &&
(conn->type == ACL_LINK || conn->type == LE_LINK)) {
if (ev->status)
if (ev->status) {
mgmt_disconnect_failed(hdev, &conn->dst, conn->type,
conn->dst_type, ev->status);
else
} else {
u8 reason = hci_to_mgmt_reason(ev->reason);
mgmt_device_disconnected(hdev, &conn->dst, conn->type,
conn->dst_type);
conn->dst_type, reason);
}
}
if (ev->status == 0) {

9
net/bluetooth/mgmt.c
View File

@ -3077,16 +3077,17 @@ static void unpair_device_rsp(struct pending_cmd *cmd, void *data)
}
int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 link_type, u8 addr_type)
u8 link_type, u8 addr_type, u8 reason)
{
struct mgmt_addr_info ev;
struct mgmt_ev_device_disconnected ev;
struct sock *sk = NULL;
int err;
mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
bacpy(&ev.bdaddr, bdaddr);
ev.type = link_to_bdaddr(link_type, addr_type);
bacpy(&ev.addr.bdaddr, bdaddr);
ev.addr.type = link_to_bdaddr(link_type, addr_type);
ev.reason = reason;
err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev),
sk);