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Commit 06f5b778 authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Johan Hedberg
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Bluetooth: Add support for setting SSP debug mode 



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: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 3497ac84

include/net/bluetooth/hci.h

+2 −0
Original line number Diff line number Diff line
@@ -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];

include/net/bluetooth/hci_core.h

+1 −0
Original line number Diff line number Diff line
@@ -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;

net/bluetooth/hci_core.c

+53 −1
Original line number Diff line number Diff line
@@ -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,

net/bluetooth/hci_event.c

+2 −0
Original line number Diff line number Diff line
@@ -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)