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Bluetooth: Add support for setting SSP debug mode

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Enabling and disabling SSP debug mode is useful for development. This
adds a debugfs entry that allows to configure the SSP debug mode.

On purpose this has been implemented as debugfs entry and not a public
API since it is really only useful during testing and development.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2013-10-19 07:09:11 -07:00 committed by Johan Hedberg
parent 3497ac84bd
commit 06f5b7785a
4 changed files with 58 additions and 1 deletions
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2
include/net/bluetooth/hci.h
View File

@ -1043,6 +1043,8 @@ struct hci_rp_write_remote_amp_assoc {
__u8 phy_handle;
} __packed;
#define HCI_OP_WRITE_SSP_DEBUG_MODE 0x1804
#define HCI_OP_LE_SET_EVENT_MASK 0x2001
struct hci_cp_le_set_event_mask {
__u8 mask[8];

1
include/net/bluetooth/hci_core.h
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@ -169,6 +169,7 @@ struct hci_dev {
__u8 page_scan_type;
__u16 le_scan_interval;
__u16 le_scan_window;
__u8 ssp_debug_mode;
__u16 devid_source;
__u16 devid_vendor;

54
net/bluetooth/hci_core.c
View File

@ -303,6 +303,55 @@ static int auto_accept_delay_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
auto_accept_delay_set, "%llu\n");
static int ssp_debug_mode_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
struct sk_buff *skb;
__u8 mode;
int err;
if (val != 0 && val != 1)
return -EINVAL;
if (!test_bit(HCI_UP, &hdev->flags))
return -ENETDOWN;
hci_req_lock(hdev);
mode = val;
skb = __hci_cmd_sync(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE, sizeof(mode),
&mode, HCI_CMD_TIMEOUT);
hci_req_unlock(hdev);
if (IS_ERR(skb))
return PTR_ERR(skb);
err = -bt_to_errno(skb->data[0]);
kfree_skb(skb);
if (err < 0)
return err;
hci_dev_lock(hdev);
hdev->ssp_debug_mode = val;
hci_dev_unlock(hdev);
return 0;
}
static int ssp_debug_mode_get(void *data, u64 *val)
{
struct hci_dev *hdev = data;
hci_dev_lock(hdev);
*val = hdev->ssp_debug_mode;
hci_dev_unlock(hdev);
return 0;
}
DEFINE_SIMPLE_ATTRIBUTE(ssp_debug_mode_fops, ssp_debug_mode_get,
ssp_debug_mode_set, "%llu\n");
static int idle_timeout_set(void *data, u64 val)
{
struct hci_dev *hdev = data;
@ -1199,9 +1248,12 @@ static int __hci_init(struct hci_dev *hdev)
hdev, &voice_setting_fops);
}
if (lmp_ssp_capable(hdev))
if (lmp_ssp_capable(hdev)) {
debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
hdev, &auto_accept_delay_fops);
debugfs_create_file("ssp_debug_mode", 0644, hdev->debugfs,
hdev, &ssp_debug_mode_fops);
}
if (lmp_sniff_capable(hdev)) {
debugfs_create_file("idle_timeout", 0644, hdev->debugfs,

2
net/bluetooth/hci_event.c
View File

@ -198,6 +198,8 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
hdev->scan_rsp_data_len = 0;
hdev->ssp_debug_mode = 0;
}
static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)