Doug / smarc-fsl-linux-kernel | Embedian Git Server

Commit 943da25d95c7e8fd8c39dbf09e030f5da46f5d85

Authored by Marcel Holtmann 2010-02-13 09:28:41 +0800

Exists in master and in 7 other branches

Bluetooth: Add controller types for BR/EDR and 802.11 AMP

With the Bluetooth 3.0 specification and the introduction of alternate
MAC/PHY (AMP) support, it is required to differentiate between primary
BR/EDR controllers and 802.11 AMP controllers. So introduce a special
type inside HCI device for differentiation.

For now all AMP controllers will be treated as raw devices until an
AMP manager has been implemented.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Showing 4 changed files with 30 additions and 1 deletions Inline Diff

include/net/bluetooth/hci.h
include/net/bluetooth/hci_core.h
net/bluetooth/hci_core.c
net/bluetooth/hci_sysfs.c

include/net/bluetooth/hci.h

Diff comments View file @ 943da25

 /*
    BlueZ - Bluetooth protocol stack for Linux
    Copyright (C) 2000-2001 Qualcomm Incorporated
    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 2 as
    published by the Free Software Foundation;
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
    SOFTWARE IS DISCLAIMED.
 */
 #ifndef __HCI_H
 #define __HCI_H
 #define HCI_MAX_ACL_SIZE	1024
 #define HCI_MAX_SCO_SIZE	255
 #define HCI_MAX_EVENT_SIZE	260
 #define HCI_MAX_FRAME_SIZE	(HCI_MAX_ACL_SIZE + 4)
 /* HCI dev events */
 #define HCI_DEV_REG			1
 #define HCI_DEV_UNREG			2
 #define HCI_DEV_UP			3
 #define HCI_DEV_DOWN			4
 #define HCI_DEV_SUSPEND			5
 #define HCI_DEV_RESUME			6
 /* HCI notify events */
 #define HCI_NOTIFY_CONN_ADD		1
 #define HCI_NOTIFY_CONN_DEL		2
 #define HCI_NOTIFY_VOICE_SETTING	3
 /* HCI bus types */
 #define HCI_VIRTUAL	0
 #define HCI_USB		1
 #define HCI_PCCARD	2
 #define HCI_UART	3
 #define HCI_RS232	4
 #define HCI_PCI		5
 #define HCI_SDIO	6
+/* HCI controller types */
+#define HCI_BREDR	0x00
+#define HCI_80211	0x01
 /* HCI device quirks */
 enum {
 	HCI_QUIRK_NO_RESET,
 	HCI_QUIRK_RAW_DEVICE,
 	HCI_QUIRK_FIXUP_BUFFER_SIZE
 };
 /* HCI device flags */
 enum {
 	HCI_UP,
 	HCI_INIT,
 	HCI_RUNNING,
 	HCI_PSCAN,
 	HCI_ISCAN,
 	HCI_AUTH,
 	HCI_ENCRYPT,
 	HCI_INQUIRY,
 	HCI_RAW,
 };
 /* HCI ioctl defines */
 #define HCIDEVUP	_IOW('H', 201, int)
 #define HCIDEVDOWN	_IOW('H', 202, int)
 #define HCIDEVRESET	_IOW('H', 203, int)
 #define HCIDEVRESTAT	_IOW('H', 204, int)
 #define HCIGETDEVLIST	_IOR('H', 210, int)
 #define HCIGETDEVINFO	_IOR('H', 211, int)
 #define HCIGETCONNLIST	_IOR('H', 212, int)
 #define HCIGETCONNINFO	_IOR('H', 213, int)
 #define HCIGETAUTHINFO	_IOR('H', 215, int)
 #define HCISETRAW	_IOW('H', 220, int)
 #define HCISETSCAN	_IOW('H', 221, int)
 #define HCISETAUTH	_IOW('H', 222, int)
 #define HCISETENCRYPT	_IOW('H', 223, int)
 #define HCISETPTYPE	_IOW('H', 224, int)
 #define HCISETLINKPOL	_IOW('H', 225, int)
 #define HCISETLINKMODE	_IOW('H', 226, int)
 #define HCISETACLMTU	_IOW('H', 227, int)
 #define HCISETSCOMTU	_IOW('H', 228, int)
 #define HCIINQUIRY	_IOR('H', 240, int)
 /* HCI timeouts */
 #define HCI_CONNECT_TIMEOUT	(40000)	/* 40 seconds */
 #define HCI_DISCONN_TIMEOUT	(2000)	/* 2 seconds */
 #define HCI_PAIRING_TIMEOUT	(60000)	/* 60 seconds */
 #define HCI_IDLE_TIMEOUT	(6000)	/* 6 seconds */
 #define HCI_INIT_TIMEOUT	(10000)	/* 10 seconds */
 /* HCI data types */
 #define HCI_COMMAND_PKT		0x01
 #define HCI_ACLDATA_PKT		0x02
 #define HCI_SCODATA_PKT		0x03
 #define HCI_EVENT_PKT		0x04
 #define HCI_VENDOR_PKT		0xff
 /* HCI packet types */
 #define HCI_DM1		0x0008
 #define HCI_DM3		0x0400
 #define HCI_DM5		0x4000
 #define HCI_DH1		0x0010
 #define HCI_DH3		0x0800
 #define HCI_DH5		0x8000
 #define HCI_HV1		0x0020
 #define HCI_HV2		0x0040
 #define HCI_HV3		0x0080
 #define SCO_PTYPE_MASK	(HCI_HV1 | HCI_HV2 | HCI_HV3)
 #define ACL_PTYPE_MASK	(~SCO_PTYPE_MASK)
 /* eSCO packet types */
 #define ESCO_HV1	0x0001
 #define ESCO_HV2	0x0002
 #define ESCO_HV3	0x0004
 #define ESCO_EV3	0x0008
 #define ESCO_EV4	0x0010
 #define ESCO_EV5	0x0020
 #define ESCO_2EV3	0x0040
 #define ESCO_3EV3	0x0080
 #define ESCO_2EV5	0x0100
 #define ESCO_3EV5	0x0200
 #define SCO_ESCO_MASK  (ESCO_HV1 | ESCO_HV2 | ESCO_HV3)
 #define EDR_ESCO_MASK  (ESCO_2EV3 | ESCO_3EV3 | ESCO_2EV5 | ESCO_3EV5)
 /* ACL flags */
 #define ACL_CONT		0x01
 #define ACL_START		0x02
 #define ACL_ACTIVE_BCAST	0x04
 #define ACL_PICO_BCAST		0x08
 /* Baseband links */
 #define SCO_LINK	0x00
 #define ACL_LINK	0x01
 #define ESCO_LINK	0x02
 /* LMP features */
 #define LMP_3SLOT	0x01
 #define LMP_5SLOT	0x02
 #define LMP_ENCRYPT	0x04
 #define LMP_SOFFSET	0x08
 #define LMP_TACCURACY	0x10
 #define LMP_RSWITCH	0x20
 #define LMP_HOLD	0x40
 #define LMP_SNIFF	0x80
 #define LMP_PARK	0x01
 #define LMP_RSSI	0x02
 #define LMP_QUALITY	0x04
 #define LMP_SCO		0x08
 #define LMP_HV2		0x10
 #define LMP_HV3		0x20
 #define LMP_ULAW	0x40
 #define LMP_ALAW	0x80
 #define LMP_CVSD	0x01
 #define LMP_PSCHEME	0x02
 #define LMP_PCONTROL	0x04
 #define LMP_ESCO	0x80
 #define LMP_EV4		0x01
 #define LMP_EV5		0x02
 #define LMP_SNIFF_SUBR	0x02
 #define LMP_EDR_ESCO_2M	0x20
 #define LMP_EDR_ESCO_3M	0x40
 #define LMP_EDR_3S_ESCO	0x80
 #define LMP_SIMPLE_PAIR	0x08
 /* Connection modes */
 #define HCI_CM_ACTIVE	0x0000
 #define HCI_CM_HOLD	0x0001
 #define HCI_CM_SNIFF	0x0002
 #define HCI_CM_PARK	0x0003
 /* Link policies */
 #define HCI_LP_RSWITCH	0x0001
 #define HCI_LP_HOLD	0x0002
 #define HCI_LP_SNIFF	0x0004
 #define HCI_LP_PARK	0x0008
 /* Link modes */
 #define HCI_LM_ACCEPT	0x8000
 #define HCI_LM_MASTER	0x0001
 #define HCI_LM_AUTH	0x0002
 #define HCI_LM_ENCRYPT	0x0004
 #define HCI_LM_TRUSTED	0x0008
 #define HCI_LM_RELIABLE	0x0010
 #define HCI_LM_SECURE	0x0020
 /* Authentication types */
 #define HCI_AT_NO_BONDING		0x00
 #define HCI_AT_NO_BONDING_MITM		0x01
 #define HCI_AT_DEDICATED_BONDING	0x02
 #define HCI_AT_DEDICATED_BONDING_MITM	0x03
 #define HCI_AT_GENERAL_BONDING		0x04
 #define HCI_AT_GENERAL_BONDING_MITM	0x05
 /* -----  HCI Commands ---- */
 #define HCI_OP_INQUIRY			0x0401
 struct hci_cp_inquiry {
 	__u8     lap[3];
 	__u8     length;
 	__u8     num_rsp;
 } __attribute__ ((packed));
 #define HCI_OP_INQUIRY_CANCEL		0x0402
 #define HCI_OP_EXIT_PERIODIC_INQ	0x0404
 #define HCI_OP_CREATE_CONN		0x0405
 struct hci_cp_create_conn {
 	bdaddr_t bdaddr;
 	__le16   pkt_type;
 	__u8     pscan_rep_mode;
 	__u8     pscan_mode;
 	__le16   clock_offset;
 	__u8     role_switch;
 } __attribute__ ((packed));
 #define HCI_OP_DISCONNECT		0x0406
 struct hci_cp_disconnect {
 	__le16   handle;
 	__u8     reason;
 } __attribute__ ((packed));
 #define HCI_OP_ADD_SCO			0x0407
 struct hci_cp_add_sco {
 	__le16   handle;
 	__le16   pkt_type;
 } __attribute__ ((packed));
 #define HCI_OP_CREATE_CONN_CANCEL	0x0408
 struct hci_cp_create_conn_cancel {
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_OP_ACCEPT_CONN_REQ		0x0409
 struct hci_cp_accept_conn_req {
 	bdaddr_t bdaddr;
 	__u8     role;
 } __attribute__ ((packed));
 #define HCI_OP_REJECT_CONN_REQ		0x040a
 struct hci_cp_reject_conn_req {
 	bdaddr_t bdaddr;
 	__u8     reason;
 } __attribute__ ((packed));
 #define HCI_OP_LINK_KEY_REPLY		0x040b
 struct hci_cp_link_key_reply {
 	bdaddr_t bdaddr;
 	__u8     link_key[16];
 } __attribute__ ((packed));
 #define HCI_OP_LINK_KEY_NEG_REPLY	0x040c
 struct hci_cp_link_key_neg_reply {
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_OP_PIN_CODE_REPLY		0x040d
 struct hci_cp_pin_code_reply {
 	bdaddr_t bdaddr;
 	__u8     pin_len;
 	__u8     pin_code[16];
 } __attribute__ ((packed));
 #define HCI_OP_PIN_CODE_NEG_REPLY	0x040e
 struct hci_cp_pin_code_neg_reply {
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_OP_CHANGE_CONN_PTYPE	0x040f
 struct hci_cp_change_conn_ptype {
 	__le16   handle;
 	__le16   pkt_type;
 } __attribute__ ((packed));
 #define HCI_OP_AUTH_REQUESTED		0x0411
 struct hci_cp_auth_requested {
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_OP_SET_CONN_ENCRYPT		0x0413
 struct hci_cp_set_conn_encrypt {
 	__le16   handle;
 	__u8     encrypt;
 } __attribute__ ((packed));
 #define HCI_OP_CHANGE_CONN_LINK_KEY	0x0415
 struct hci_cp_change_conn_link_key {
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_OP_REMOTE_NAME_REQ		0x0419
 struct hci_cp_remote_name_req {
 	bdaddr_t bdaddr;
 	__u8     pscan_rep_mode;
 	__u8     pscan_mode;
 	__le16   clock_offset;
 } __attribute__ ((packed));
 #define HCI_OP_REMOTE_NAME_REQ_CANCEL	0x041a
 struct hci_cp_remote_name_req_cancel {
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_OP_READ_REMOTE_FEATURES	0x041b
 struct hci_cp_read_remote_features {
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_OP_READ_REMOTE_EXT_FEATURES	0x041c
 struct hci_cp_read_remote_ext_features {
 	__le16   handle;
 	__u8     page;
 } __attribute__ ((packed));
 #define HCI_OP_READ_REMOTE_VERSION	0x041d
 struct hci_cp_read_remote_version {
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_OP_SETUP_SYNC_CONN		0x0428
 struct hci_cp_setup_sync_conn {
 	__le16   handle;
 	__le32   tx_bandwidth;
 	__le32   rx_bandwidth;
 	__le16   max_latency;
 	__le16   voice_setting;
 	__u8     retrans_effort;
 	__le16   pkt_type;
 } __attribute__ ((packed));
 #define HCI_OP_ACCEPT_SYNC_CONN_REQ	0x0429
 struct hci_cp_accept_sync_conn_req {
 	bdaddr_t bdaddr;
 	__le32   tx_bandwidth;
 	__le32   rx_bandwidth;
 	__le16   max_latency;
 	__le16   content_format;
 	__u8     retrans_effort;
 	__le16   pkt_type;
 } __attribute__ ((packed));
 #define HCI_OP_REJECT_SYNC_CONN_REQ	0x042a
 struct hci_cp_reject_sync_conn_req {
 	bdaddr_t bdaddr;
 	__u8     reason;
 } __attribute__ ((packed));
 #define HCI_OP_SNIFF_MODE		0x0803
 struct hci_cp_sniff_mode {
 	__le16   handle;
 	__le16   max_interval;
 	__le16   min_interval;
 	__le16   attempt;
 	__le16   timeout;
 } __attribute__ ((packed));
 #define HCI_OP_EXIT_SNIFF_MODE		0x0804
 struct hci_cp_exit_sniff_mode {
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_OP_ROLE_DISCOVERY		0x0809
 struct hci_cp_role_discovery {
 	__le16   handle;
 } __attribute__ ((packed));
 struct hci_rp_role_discovery {
 	__u8     status;
 	__le16   handle;
 	__u8     role;
 } __attribute__ ((packed));
 #define HCI_OP_SWITCH_ROLE		0x080b
 struct hci_cp_switch_role {
 	bdaddr_t bdaddr;
 	__u8     role;
 } __attribute__ ((packed));
 #define HCI_OP_READ_LINK_POLICY		0x080c
 struct hci_cp_read_link_policy {
 	__le16   handle;
 } __attribute__ ((packed));
 struct hci_rp_read_link_policy {
 	__u8     status;
 	__le16   handle;
 	__le16   policy;
 } __attribute__ ((packed));
 #define HCI_OP_WRITE_LINK_POLICY	0x080d
 struct hci_cp_write_link_policy {
 	__le16   handle;
 	__le16   policy;
 } __attribute__ ((packed));
 struct hci_rp_write_link_policy {
 	__u8     status;
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_OP_READ_DEF_LINK_POLICY	0x080e
 struct hci_rp_read_def_link_policy {
 	__u8     status;
 	__le16   policy;
 } __attribute__ ((packed));
 #define HCI_OP_WRITE_DEF_LINK_POLICY	0x080f
 struct hci_cp_write_def_link_policy {
 	__le16   policy;
 } __attribute__ ((packed));
 #define HCI_OP_SNIFF_SUBRATE		0x0811
 struct hci_cp_sniff_subrate {
 	__le16   handle;
 	__le16   max_latency;
 	__le16   min_remote_timeout;
 	__le16   min_local_timeout;
 } __attribute__ ((packed));
 #define HCI_OP_SET_EVENT_MASK		0x0c01
 struct hci_cp_set_event_mask {
 	__u8     mask[8];
 } __attribute__ ((packed));
 #define HCI_OP_RESET			0x0c03
 #define HCI_OP_SET_EVENT_FLT		0x0c05
 struct hci_cp_set_event_flt {
 	__u8     flt_type;
 	__u8     cond_type;
 	__u8     condition[0];
 } __attribute__ ((packed));
 /* Filter types */
 #define HCI_FLT_CLEAR_ALL	0x00
 #define HCI_FLT_INQ_RESULT	0x01
 #define HCI_FLT_CONN_SETUP	0x02
 /* CONN_SETUP Condition types */
 #define HCI_CONN_SETUP_ALLOW_ALL	0x00
 #define HCI_CONN_SETUP_ALLOW_CLASS	0x01
 #define HCI_CONN_SETUP_ALLOW_BDADDR	0x02
 /* CONN_SETUP Conditions */
 #define HCI_CONN_SETUP_AUTO_OFF	0x01
 #define HCI_CONN_SETUP_AUTO_ON	0x02
 #define HCI_OP_WRITE_LOCAL_NAME		0x0c13
 struct hci_cp_write_local_name {
 	__u8     name[248];
 } __attribute__ ((packed));
 #define HCI_OP_READ_LOCAL_NAME		0x0c14
 struct hci_rp_read_local_name {
 	__u8     status;
 	__u8     name[248];
 } __attribute__ ((packed));
 #define HCI_OP_WRITE_CA_TIMEOUT		0x0c16
 #define HCI_OP_WRITE_PG_TIMEOUT		0x0c18
 #define HCI_OP_WRITE_SCAN_ENABLE 	0x0c1a
 	#define SCAN_DISABLED		0x00
 	#define SCAN_INQUIRY		0x01
 	#define SCAN_PAGE		0x02
 #define HCI_OP_READ_AUTH_ENABLE		0x0c1f
 #define HCI_OP_WRITE_AUTH_ENABLE	0x0c20
 	#define AUTH_DISABLED		0x00
 	#define AUTH_ENABLED		0x01
 #define HCI_OP_READ_ENCRYPT_MODE	0x0c21
 #define HCI_OP_WRITE_ENCRYPT_MODE	0x0c22
 	#define ENCRYPT_DISABLED	0x00
 	#define ENCRYPT_P2P		0x01
 	#define ENCRYPT_BOTH		0x02
 #define HCI_OP_READ_CLASS_OF_DEV	0x0c23
 struct hci_rp_read_class_of_dev {
 	__u8     status;
 	__u8     dev_class[3];
 } __attribute__ ((packed));
 #define HCI_OP_WRITE_CLASS_OF_DEV	0x0c24
 struct hci_cp_write_class_of_dev {
 	__u8     dev_class[3];
 } __attribute__ ((packed));
 #define HCI_OP_READ_VOICE_SETTING	0x0c25
 struct hci_rp_read_voice_setting {
 	__u8     status;
 	__le16   voice_setting;
 } __attribute__ ((packed));
 #define HCI_OP_WRITE_VOICE_SETTING	0x0c26
 struct hci_cp_write_voice_setting {
 	__le16   voice_setting;
 } __attribute__ ((packed));
 #define HCI_OP_HOST_BUFFER_SIZE		0x0c33
 struct hci_cp_host_buffer_size {
 	__le16   acl_mtu;
 	__u8     sco_mtu;
 	__le16   acl_max_pkt;
 	__le16   sco_max_pkt;
 } __attribute__ ((packed));
 #define HCI_OP_READ_SSP_MODE		0x0c55
 struct hci_rp_read_ssp_mode {
 	__u8     status;
 	__u8     mode;
 } __attribute__ ((packed));
 #define HCI_OP_WRITE_SSP_MODE		0x0c56
 struct hci_cp_write_ssp_mode {
 	__u8     mode;
 } __attribute__ ((packed));
 #define HCI_OP_READ_LOCAL_VERSION	0x1001
 struct hci_rp_read_local_version {
 	__u8     status;
 	__u8     hci_ver;
 	__le16   hci_rev;
 	__u8     lmp_ver;
 	__le16   manufacturer;
 	__le16   lmp_subver;
 } __attribute__ ((packed));
 #define HCI_OP_READ_LOCAL_COMMANDS	0x1002
 struct hci_rp_read_local_commands {
 	__u8     status;
 	__u8     commands[64];
 } __attribute__ ((packed));
 #define HCI_OP_READ_LOCAL_FEATURES	0x1003
 struct hci_rp_read_local_features {
 	__u8     status;
 	__u8     features[8];
 } __attribute__ ((packed));
 #define HCI_OP_READ_LOCAL_EXT_FEATURES	0x1004
 struct hci_rp_read_local_ext_features {
 	__u8     status;
 	__u8     page;
 	__u8     max_page;
 	__u8     features[8];
 } __attribute__ ((packed));
 #define HCI_OP_READ_BUFFER_SIZE		0x1005
 struct hci_rp_read_buffer_size {
 	__u8     status;
 	__le16   acl_mtu;
 	__u8     sco_mtu;
 	__le16   acl_max_pkt;
 	__le16   sco_max_pkt;
 } __attribute__ ((packed));
 #define HCI_OP_READ_BD_ADDR		0x1009
 struct hci_rp_read_bd_addr {
 	__u8     status;
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 /* ---- HCI Events ---- */
 #define HCI_EV_INQUIRY_COMPLETE		0x01
 #define HCI_EV_INQUIRY_RESULT		0x02
 struct inquiry_info {
 	bdaddr_t bdaddr;
 	__u8     pscan_rep_mode;
 	__u8     pscan_period_mode;
 	__u8     pscan_mode;
 	__u8     dev_class[3];
 	__le16   clock_offset;
 } __attribute__ ((packed));
 #define HCI_EV_CONN_COMPLETE		0x03
 struct hci_ev_conn_complete {
 	__u8     status;
 	__le16   handle;
 	bdaddr_t bdaddr;
 	__u8     link_type;
 	__u8     encr_mode;
 } __attribute__ ((packed));
 #define HCI_EV_CONN_REQUEST		0x04
 struct hci_ev_conn_request {
 	bdaddr_t bdaddr;
 	__u8     dev_class[3];
 	__u8     link_type;
 } __attribute__ ((packed));
 #define HCI_EV_DISCONN_COMPLETE		0x05
 struct hci_ev_disconn_complete {
 	__u8     status;
 	__le16   handle;
 	__u8     reason;
 } __attribute__ ((packed));
 #define HCI_EV_AUTH_COMPLETE		0x06
 struct hci_ev_auth_complete {
 	__u8     status;
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_EV_REMOTE_NAME		0x07
 struct hci_ev_remote_name {
 	__u8     status;
 	bdaddr_t bdaddr;
 	__u8     name[248];
 } __attribute__ ((packed));
 #define HCI_EV_ENCRYPT_CHANGE		0x08
 struct hci_ev_encrypt_change {
 	__u8     status;
 	__le16   handle;
 	__u8     encrypt;
 } __attribute__ ((packed));
 #define HCI_EV_CHANGE_LINK_KEY_COMPLETE	0x09
 struct hci_ev_change_link_key_complete {
 	__u8     status;
 	__le16   handle;
 } __attribute__ ((packed));
 #define HCI_EV_REMOTE_FEATURES		0x0b
 struct hci_ev_remote_features {
 	__u8     status;
 	__le16   handle;
 	__u8     features[8];
 } __attribute__ ((packed));
 #define HCI_EV_REMOTE_VERSION		0x0c
 struct hci_ev_remote_version {
 	__u8     status;
 	__le16   handle;
 	__u8     lmp_ver;
 	__le16   manufacturer;
 	__le16   lmp_subver;
 } __attribute__ ((packed));
 #define HCI_EV_QOS_SETUP_COMPLETE	0x0d
 struct hci_qos {
 	__u8     service_type;
 	__u32    token_rate;
 	__u32    peak_bandwidth;
 	__u32    latency;
 	__u32    delay_variation;
 } __attribute__ ((packed));
 struct hci_ev_qos_setup_complete {
 	__u8     status;
 	__le16   handle;
 	struct   hci_qos qos;
 } __attribute__ ((packed));
 #define HCI_EV_CMD_COMPLETE		0x0e
 struct hci_ev_cmd_complete {
 	__u8     ncmd;
 	__le16   opcode;
 } __attribute__ ((packed));
 #define HCI_EV_CMD_STATUS		0x0f
 struct hci_ev_cmd_status {
 	__u8     status;
 	__u8     ncmd;
 	__le16   opcode;
 } __attribute__ ((packed));
 #define HCI_EV_ROLE_CHANGE		0x12
 struct hci_ev_role_change {
 	__u8     status;
 	bdaddr_t bdaddr;
 	__u8     role;
 } __attribute__ ((packed));
 #define HCI_EV_NUM_COMP_PKTS		0x13
 struct hci_ev_num_comp_pkts {
 	__u8     num_hndl;
 	/* variable length part */
 } __attribute__ ((packed));
 #define HCI_EV_MODE_CHANGE		0x14
 struct hci_ev_mode_change {
 	__u8     status;
 	__le16   handle;
 	__u8     mode;
 	__le16   interval;
 } __attribute__ ((packed));
 #define HCI_EV_PIN_CODE_REQ		0x16
 struct hci_ev_pin_code_req {
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_EV_LINK_KEY_REQ		0x17
 struct hci_ev_link_key_req {
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_EV_LINK_KEY_NOTIFY		0x18
 struct hci_ev_link_key_notify {
 	bdaddr_t bdaddr;
 	__u8     link_key[16];
 	__u8     key_type;
 } __attribute__ ((packed));
 #define HCI_EV_CLOCK_OFFSET		0x1c
 struct hci_ev_clock_offset {
 	__u8     status;
 	__le16   handle;
 	__le16   clock_offset;
 } __attribute__ ((packed));
 #define HCI_EV_PKT_TYPE_CHANGE		0x1d
 struct hci_ev_pkt_type_change {
 	__u8     status;
 	__le16   handle;
 	__le16   pkt_type;
 } __attribute__ ((packed));
 #define HCI_EV_PSCAN_REP_MODE		0x20
 struct hci_ev_pscan_rep_mode {
 	bdaddr_t bdaddr;
 	__u8     pscan_rep_mode;
 } __attribute__ ((packed));
 #define HCI_EV_INQUIRY_RESULT_WITH_RSSI	0x22
 struct inquiry_info_with_rssi {
 	bdaddr_t bdaddr;
 	__u8     pscan_rep_mode;
 	__u8     pscan_period_mode;
 	__u8     dev_class[3];
 	__le16   clock_offset;
 	__s8     rssi;
 } __attribute__ ((packed));
 struct inquiry_info_with_rssi_and_pscan_mode {
 	bdaddr_t bdaddr;
 	__u8     pscan_rep_mode;
 	__u8     pscan_period_mode;
 	__u8     pscan_mode;
 	__u8     dev_class[3];
 	__le16   clock_offset;
 	__s8     rssi;
 } __attribute__ ((packed));
 #define HCI_EV_REMOTE_EXT_FEATURES	0x23
 struct hci_ev_remote_ext_features {
 	__u8     status;
 	__le16   handle;
 	__u8     page;
 	__u8     max_page;
 	__u8     features[8];
 } __attribute__ ((packed));
 #define HCI_EV_SYNC_CONN_COMPLETE	0x2c
 struct hci_ev_sync_conn_complete {
 	__u8     status;
 	__le16   handle;
 	bdaddr_t bdaddr;
 	__u8     link_type;
 	__u8     tx_interval;
 	__u8     retrans_window;
 	__le16   rx_pkt_len;
 	__le16   tx_pkt_len;
 	__u8     air_mode;
 } __attribute__ ((packed));
 #define HCI_EV_SYNC_CONN_CHANGED	0x2d
 struct hci_ev_sync_conn_changed {
 	__u8     status;
 	__le16   handle;
 	__u8     tx_interval;
 	__u8     retrans_window;
 	__le16   rx_pkt_len;
 	__le16   tx_pkt_len;
 } __attribute__ ((packed));
 #define HCI_EV_SNIFF_SUBRATE		0x2e
 struct hci_ev_sniff_subrate {
 	__u8     status;
 	__le16   handle;
 	__le16   max_tx_latency;
 	__le16   max_rx_latency;
 	__le16   max_remote_timeout;
 	__le16   max_local_timeout;
 } __attribute__ ((packed));
 #define HCI_EV_EXTENDED_INQUIRY_RESULT	0x2f
 struct extended_inquiry_info {
 	bdaddr_t bdaddr;
 	__u8     pscan_rep_mode;
 	__u8     pscan_period_mode;
 	__u8     dev_class[3];
 	__le16   clock_offset;
 	__s8     rssi;
 	__u8     data[240];
 } __attribute__ ((packed));
 #define HCI_EV_IO_CAPA_REQUEST		0x31
 struct hci_ev_io_capa_request {
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_EV_SIMPLE_PAIR_COMPLETE	0x36
 struct hci_ev_simple_pair_complete {
 	__u8     status;
 	bdaddr_t bdaddr;
 } __attribute__ ((packed));
 #define HCI_EV_REMOTE_HOST_FEATURES	0x3d
 struct hci_ev_remote_host_features {
 	bdaddr_t bdaddr;
 	__u8     features[8];
 } __attribute__ ((packed));
 /* Internal events generated by Bluetooth stack */
 #define HCI_EV_STACK_INTERNAL	0xfd
 struct hci_ev_stack_internal {
 	__u16    type;
 	__u8     data[0];
 } __attribute__ ((packed));
 #define HCI_EV_SI_DEVICE	0x01
 struct hci_ev_si_device {
 	__u16    event;
 	__u16    dev_id;
 } __attribute__ ((packed));
 #define HCI_EV_SI_SECURITY	0x02
 struct hci_ev_si_security {
 	__u16    event;
 	__u16    proto;
 	__u16    subproto;
 	__u8     incoming;
 } __attribute__ ((packed));
 /* ---- HCI Packet structures ---- */
 #define HCI_COMMAND_HDR_SIZE 3
 #define HCI_EVENT_HDR_SIZE   2
 #define HCI_ACL_HDR_SIZE     4
 #define HCI_SCO_HDR_SIZE     3
 struct hci_command_hdr {
 	__le16	opcode;		/* OCF & OGF */
 	__u8 	plen;
 } __attribute__ ((packed));
 struct hci_event_hdr {
 	__u8	evt;
 	__u8	plen;
 } __attribute__ ((packed));
 struct hci_acl_hdr {
 	__le16	handle;		/* Handle & Flags(PB, BC) */
 	__le16	dlen;
 } __attribute__ ((packed));
 struct hci_sco_hdr {
 	__le16	handle;
 	__u8	dlen;
 } __attribute__ ((packed));
 #ifdef __KERNEL__
 #include <linux/skbuff.h>
 static inline struct hci_event_hdr *hci_event_hdr(const struct sk_buff *skb)
 {
 	return (struct hci_event_hdr *) skb->data;
 }
 static inline struct hci_acl_hdr *hci_acl_hdr(const struct sk_buff *skb)
 {
 	return (struct hci_acl_hdr *) skb->data;
 }
 static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
 {
 	return (struct hci_sco_hdr *) skb->data;
 }
 #endif
 /* Command opcode pack/unpack */
 #define hci_opcode_pack(ogf, ocf)	(__u16) ((ocf & 0x03ff)|(ogf << 10))
 #define hci_opcode_ogf(op)		(op >> 10)
 #define hci_opcode_ocf(op)		(op & 0x03ff)
 /* ACL handle and flags pack/unpack */
 #define hci_handle_pack(h, f)	(__u16) ((h & 0x0fff)|(f << 12))
 #define hci_handle(h)		(h & 0x0fff)
 #define hci_flags(h)		(h >> 12)
 /* ---- HCI Sockets ---- */
 /* Socket options */
 #define HCI_DATA_DIR	1
 #define HCI_FILTER	2
 #define HCI_TIME_STAMP	3
 /* CMSG flags */
 #define HCI_CMSG_DIR	0x0001
 #define HCI_CMSG_TSTAMP	0x0002
 struct sockaddr_hci {
 	sa_family_t    hci_family;
 	unsigned short hci_dev;
 };
 #define HCI_DEV_NONE	0xffff
 struct hci_filter {
 	unsigned long type_mask;
 	unsigned long event_mask[2];
 	__le16 opcode;
 };
 struct hci_ufilter {
 	__u32  type_mask;
 	__u32  event_mask[2];
 	__le16 opcode;
 };
 #define HCI_FLT_TYPE_BITS	31
 #define HCI_FLT_EVENT_BITS	63
 #define HCI_FLT_OGF_BITS	63
 #define HCI_FLT_OCF_BITS	127
 /* ---- HCI Ioctl requests structures ---- */
 struct hci_dev_stats {
 	__u32 err_rx;
 	__u32 err_tx;
 	__u32 cmd_tx;
 	__u32 evt_rx;
 	__u32 acl_tx;
 	__u32 acl_rx;
 	__u32 sco_tx;
 	__u32 sco_rx;
 	__u32 byte_rx;
 	__u32 byte_tx;
 };
 struct hci_dev_info {
 	__u16 dev_id;
 	char  name[8];
 	bdaddr_t bdaddr;
 	__u32 flags;
 	__u8  type;
 	__u8  features[8];
 	__u32 pkt_type;
 	__u32 link_policy;
 	__u32 link_mode;
 	__u16 acl_mtu;
 	__u16 acl_pkts;
 	__u16 sco_mtu;
 	__u16 sco_pkts;
 	struct hci_dev_stats stat;
 };
 struct hci_conn_info {
 	__u16    handle;
 	bdaddr_t bdaddr;
 	__u8     type;
 	__u8     out;
 	__u16    state;
 	__u32    link_mode;
 };
 struct hci_dev_req {
 	__u16  dev_id;
 	__u32  dev_opt;
 };
 struct hci_dev_list_req {
 	__u16  dev_num;
 	struct hci_dev_req dev_req[0];	/* hci_dev_req structures */
 };
 struct hci_conn_list_req {
 	__u16  dev_id;
 	__u16  conn_num;
 	struct hci_conn_info conn_info[0];
 };
 struct hci_conn_info_req {
 	bdaddr_t bdaddr;
 	__u8     type;
 	struct   hci_conn_info conn_info[0];
 };
 struct hci_auth_info_req {
 	bdaddr_t bdaddr;
 	__u8     type;
 };
 struct hci_inquiry_req {
 	__u16 dev_id;
 	__u16 flags;
 	__u8  lap[3];
 	__u8  length;
 	__u8  num_rsp;
 };
 #define IREQ_CACHE_FLUSH 0x0001
 #endif /* __HCI_H */

include/net/bluetooth/hci_core.h

Diff comments View file @ 943da25

 /*
    BlueZ - Bluetooth protocol stack for Linux
    Copyright (C) 2000-2001 Qualcomm Incorporated
    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 2 as
    published by the Free Software Foundation;
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
    SOFTWARE IS DISCLAIMED.
 */
 #ifndef __HCI_CORE_H
 #define __HCI_CORE_H
 #include <net/bluetooth/hci.h>
 /* HCI upper protocols */
 #define HCI_PROTO_L2CAP	0
 #define HCI_PROTO_SCO	1
 /* HCI Core structures */
 struct inquiry_data {
 	bdaddr_t	bdaddr;
 	__u8		pscan_rep_mode;
 	__u8		pscan_period_mode;
 	__u8		pscan_mode;
 	__u8		dev_class[3];
 	__le16		clock_offset;
 	__s8		rssi;
 	__u8		ssp_mode;
 };
 struct inquiry_entry {
 	struct inquiry_entry 	*next;
 	__u32			timestamp;
 	struct inquiry_data	data;
 };
 struct inquiry_cache {
 	spinlock_t 		lock;
 	__u32			timestamp;
 	struct inquiry_entry 	*list;
 };
 struct hci_conn_hash {
 	struct list_head list;
 	spinlock_t       lock;
 	unsigned int     acl_num;
 	unsigned int     sco_num;
 };
 struct hci_dev {
 	struct list_head list;
 	spinlock_t	lock;
 	atomic_t	refcnt;
 	char		name[8];
 	unsigned long	flags;
 	__u16		id;
 	__u8		bus;
+	__u8		dev_type;
 	bdaddr_t	bdaddr;
 	__u8		dev_name[248];
 	__u8		dev_class[3];
 	__u8		features[8];
 	__u8		commands[64];
 	__u8		ssp_mode;
 	__u8		hci_ver;
 	__u16		hci_rev;
 	__u16		manufacturer;
 	__u16		voice_setting;
 	__u16		pkt_type;
 	__u16		esco_type;
 	__u16		link_policy;
 	__u16		link_mode;
 	__u32		idle_timeout;
 	__u16		sniff_min_interval;
 	__u16		sniff_max_interval;
 	unsigned long	quirks;
 	atomic_t	cmd_cnt;
 	unsigned int	acl_cnt;
 	unsigned int	sco_cnt;
 	unsigned int	acl_mtu;
 	unsigned int	sco_mtu;
 	unsigned int	acl_pkts;
 	unsigned int	sco_pkts;
 	unsigned long	cmd_last_tx;
 	unsigned long	acl_last_tx;
 	unsigned long	sco_last_tx;
 	struct tasklet_struct	cmd_task;
 	struct tasklet_struct	rx_task;
 	struct tasklet_struct	tx_task;
 	struct sk_buff_head	rx_q;
 	struct sk_buff_head	raw_q;
 	struct sk_buff_head	cmd_q;
 	struct sk_buff		*sent_cmd;
 	struct sk_buff		*reassembly[3];
 	struct mutex		req_lock;
 	wait_queue_head_t	req_wait_q;
 	__u32			req_status;
 	__u32			req_result;
 	struct inquiry_cache	inq_cache;
 	struct hci_conn_hash	conn_hash;
 	struct hci_dev_stats	stat;
 	struct sk_buff_head	driver_init;
 	void			*driver_data;
 	void			*core_data;
 	atomic_t 		promisc;
 	struct dentry		*debugfs;
 	struct device		*parent;
 	struct device		dev;
 	struct rfkill		*rfkill;
 	struct module 		*owner;
 	int (*open)(struct hci_dev *hdev);
 	int (*close)(struct hci_dev *hdev);
 	int (*flush)(struct hci_dev *hdev);
 	int (*send)(struct sk_buff *skb);
 	void (*destruct)(struct hci_dev *hdev);
 	void (*notify)(struct hci_dev *hdev, unsigned int evt);
 	int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 };
 struct hci_conn {
 	struct list_head list;
 	atomic_t	 refcnt;
 	spinlock_t	 lock;
 	bdaddr_t	 dst;
 	__u16		 handle;
 	__u16		 state;
 	__u8             mode;
 	__u8		 type;
 	__u8		 out;
 	__u8		 attempt;
 	__u8		 dev_class[3];
 	__u8             features[8];
 	__u8             ssp_mode;
 	__u16            interval;
 	__u16            pkt_type;
 	__u16            link_policy;
 	__u32		 link_mode;
 	__u8             auth_type;
 	__u8             sec_level;
 	__u8             power_save;
 	__u16            disc_timeout;
 	unsigned long	 pend;
 	unsigned int	 sent;
 	struct sk_buff_head data_q;
 	struct timer_list disc_timer;
 	struct timer_list idle_timer;
 	struct work_struct work_add;
 	struct work_struct work_del;
 	struct device	dev;
 	atomic_t	devref;
 	struct hci_dev	*hdev;
 	void		*l2cap_data;
 	void		*sco_data;
 	void		*priv;
 	struct hci_conn	*link;
 };
 extern struct hci_proto *hci_proto[];
 extern struct list_head hci_dev_list;
 extern struct list_head hci_cb_list;
 extern rwlock_t hci_dev_list_lock;
 extern rwlock_t hci_cb_list_lock;
 /* ----- Inquiry cache ----- */
 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   // 30 seconds
 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   // 60 seconds
 #define inquiry_cache_lock(c)		spin_lock(&c->lock)
 #define inquiry_cache_unlock(c)		spin_unlock(&c->lock)
 #define inquiry_cache_lock_bh(c)	spin_lock_bh(&c->lock)
 #define inquiry_cache_unlock_bh(c)	spin_unlock_bh(&c->lock)
 static inline void inquiry_cache_init(struct hci_dev *hdev)
 {
 	struct inquiry_cache *c = &hdev->inq_cache;
 	spin_lock_init(&c->lock);
 	c->list = NULL;
 }
 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 {
 	struct inquiry_cache *c = &hdev->inq_cache;
 	return (c->list == NULL);
 }
 static inline long inquiry_cache_age(struct hci_dev *hdev)
 {
 	struct inquiry_cache *c = &hdev->inq_cache;
 	return jiffies - c->timestamp;
 }
 static inline long inquiry_entry_age(struct inquiry_entry *e)
 {
 	return jiffies - e->timestamp;
 }
 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 /* ----- HCI Connections ----- */
 enum {
 	HCI_CONN_AUTH_PEND,
 	HCI_CONN_ENCRYPT_PEND,
 	HCI_CONN_RSWITCH_PEND,
 	HCI_CONN_MODE_CHANGE_PEND,
 };
 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	INIT_LIST_HEAD(&h->list);
 	spin_lock_init(&h->lock);
 	h->acl_num = 0;
 	h->sco_num = 0;
 }
 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	list_add(&c->list, &h->list);
 	if (c->type == ACL_LINK)
 		h->acl_num++;
 	else
 		h->sco_num++;
 }
 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	list_del(&c->list);
 	if (c->type == ACL_LINK)
 		h->acl_num--;
 	else
 		h->sco_num--;
 }
 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 					__u16 handle)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct list_head *p;
 	struct hci_conn  *c;
 	list_for_each(p, &h->list) {
 		c = list_entry(p, struct hci_conn, list);
 		if (c->handle == handle)
 			return c;
 	}
 	return NULL;
 }
 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 					__u8 type, bdaddr_t *ba)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct list_head *p;
 	struct hci_conn  *c;
 	list_for_each(p, &h->list) {
 		c = list_entry(p, struct hci_conn, list);
 		if (c->type == type && !bacmp(&c->dst, ba))
 			return c;
 	}
 	return NULL;
 }
 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 					__u8 type, __u16 state)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct list_head *p;
 	struct hci_conn  *c;
 	list_for_each(p, &h->list) {
 		c = list_entry(p, struct hci_conn, list);
 		if (c->type == type && c->state == state)
 			return c;
 	}
 	return NULL;
 }
 void hci_acl_connect(struct hci_conn *conn);
 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 int hci_conn_del(struct hci_conn *conn);
 void hci_conn_hash_flush(struct hci_dev *hdev);
 void hci_conn_check_pending(struct hci_dev *hdev);
 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 int hci_conn_check_link_mode(struct hci_conn *conn);
 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 int hci_conn_change_link_key(struct hci_conn *conn);
 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 void hci_conn_enter_active_mode(struct hci_conn *conn);
 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 void hci_conn_hold_device(struct hci_conn *conn);
 void hci_conn_put_device(struct hci_conn *conn);
 static inline void hci_conn_hold(struct hci_conn *conn)
 {
 	atomic_inc(&conn->refcnt);
 	del_timer(&conn->disc_timer);
 }
 static inline void hci_conn_put(struct hci_conn *conn)
 {
 	if (atomic_dec_and_test(&conn->refcnt)) {
 		unsigned long timeo;
 		if (conn->type == ACL_LINK) {
 			del_timer(&conn->idle_timer);
 			if (conn->state == BT_CONNECTED) {
 				timeo = msecs_to_jiffies(conn->disc_timeout);
 				if (!conn->out)
 					timeo *= 2;
 			} else
 				timeo = msecs_to_jiffies(10);
 		} else
 			timeo = msecs_to_jiffies(10);
 		mod_timer(&conn->disc_timer, jiffies + timeo);
 	}
 }
 /* ----- HCI Devices ----- */
 static inline void __hci_dev_put(struct hci_dev *d)
 {
 	if (atomic_dec_and_test(&d->refcnt))
 		d->destruct(d);
 }
 static inline void hci_dev_put(struct hci_dev *d)
 {
 	__hci_dev_put(d);
 	module_put(d->owner);
 }
 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 {
 	atomic_inc(&d->refcnt);
 	return d;
 }
 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 {
 	if (try_module_get(d->owner))
 		return __hci_dev_hold(d);
 	return NULL;
 }
 #define hci_dev_lock(d)		spin_lock(&d->lock)
 #define hci_dev_unlock(d)	spin_unlock(&d->lock)
 #define hci_dev_lock_bh(d)	spin_lock_bh(&d->lock)
 #define hci_dev_unlock_bh(d)	spin_unlock_bh(&d->lock)
 struct hci_dev *hci_dev_get(int index);
 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 struct hci_dev *hci_alloc_dev(void);
 void hci_free_dev(struct hci_dev *hdev);
 int hci_register_dev(struct hci_dev *hdev);
 int hci_unregister_dev(struct hci_dev *hdev);
 int hci_suspend_dev(struct hci_dev *hdev);
 int hci_resume_dev(struct hci_dev *hdev);
 int hci_dev_open(__u16 dev);
 int hci_dev_close(__u16 dev);
 int hci_dev_reset(__u16 dev);
 int hci_dev_reset_stat(__u16 dev);
 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 int hci_get_dev_list(void __user *arg);
 int hci_get_dev_info(void __user *arg);
 int hci_get_conn_list(void __user *arg);
 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 int hci_inquiry(void __user *arg);
 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 int hci_recv_frame(struct sk_buff *skb);
 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 int hci_register_sysfs(struct hci_dev *hdev);
 void hci_unregister_sysfs(struct hci_dev *hdev);
 void hci_conn_init_sysfs(struct hci_conn *conn);
 void hci_conn_add_sysfs(struct hci_conn *conn);
 void hci_conn_del_sysfs(struct hci_conn *conn);
 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 /* ----- LMP capabilities ----- */
 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 /* ----- HCI protocols ----- */
 struct hci_proto {
 	char		*name;
 	unsigned int	id;
 	unsigned long	flags;
 	void		*priv;
 	int (*connect_ind)	(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 	int (*connect_cfm)	(struct hci_conn *conn, __u8 status);
 	int (*disconn_ind)	(struct hci_conn *conn);
 	int (*disconn_cfm)	(struct hci_conn *conn, __u8 reason);
 	int (*recv_acldata)	(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 	int (*recv_scodata)	(struct hci_conn *conn, struct sk_buff *skb);
 	int (*security_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
 };
 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 {
 	register struct hci_proto *hp;
 	int mask = 0;
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->connect_ind)
 		mask |= hp->connect_ind(hdev, bdaddr, type);
 	hp = hci_proto[HCI_PROTO_SCO];
 	if (hp && hp->connect_ind)
 		mask |= hp->connect_ind(hdev, bdaddr, type);
 	return mask;
 }
 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 {
 	register struct hci_proto *hp;
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->connect_cfm)
 		hp->connect_cfm(conn, status);
 	hp = hci_proto[HCI_PROTO_SCO];
 	if (hp && hp->connect_cfm)
 		hp->connect_cfm(conn, status);
 }
 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 {
 	register struct hci_proto *hp;
 	int reason = 0x13;
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->disconn_ind)
 		reason = hp->disconn_ind(conn);
 	hp = hci_proto[HCI_PROTO_SCO];
 	if (hp && hp->disconn_ind)
 		reason = hp->disconn_ind(conn);
 	return reason;
 }
 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 {
 	register struct hci_proto *hp;
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->disconn_cfm)
 		hp->disconn_cfm(conn, reason);
 	hp = hci_proto[HCI_PROTO_SCO];
 	if (hp && hp->disconn_cfm)
 		hp->disconn_cfm(conn, reason);
 }
 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 {
 	register struct hci_proto *hp;
 	__u8 encrypt;
 	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 		return;
 	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->security_cfm)
 		hp->security_cfm(conn, status, encrypt);
 	hp = hci_proto[HCI_PROTO_SCO];
 	if (hp && hp->security_cfm)
 		hp->security_cfm(conn, status, encrypt);
 }
 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 {
 	register struct hci_proto *hp;
 	hp = hci_proto[HCI_PROTO_L2CAP];
 	if (hp && hp->security_cfm)
 		hp->security_cfm(conn, status, encrypt);
 	hp = hci_proto[HCI_PROTO_SCO];
 	if (hp && hp->security_cfm)
 		hp->security_cfm(conn, status, encrypt);
 }
 int hci_register_proto(struct hci_proto *hproto);
 int hci_unregister_proto(struct hci_proto *hproto);
 /* ----- HCI callbacks ----- */
 struct hci_cb {
 	struct list_head list;
 	char *name;
 	void (*security_cfm)	(struct hci_conn *conn, __u8 status, __u8 encrypt);
 	void (*key_change_cfm)	(struct hci_conn *conn, __u8 status);
 	void (*role_switch_cfm)	(struct hci_conn *conn, __u8 status, __u8 role);
 };
 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 {
 	struct list_head *p;
 	__u8 encrypt;
 	hci_proto_auth_cfm(conn, status);
 	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 		return;
 	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 	read_lock_bh(&hci_cb_list_lock);
 	list_for_each(p, &hci_cb_list) {
 		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 		if (cb->security_cfm)
 			cb->security_cfm(conn, status, encrypt);
 	}
 	read_unlock_bh(&hci_cb_list_lock);
 }
 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 {
 	struct list_head *p;
 	if (conn->sec_level == BT_SECURITY_SDP)
 		conn->sec_level = BT_SECURITY_LOW;
 	hci_proto_encrypt_cfm(conn, status, encrypt);
 	read_lock_bh(&hci_cb_list_lock);
 	list_for_each(p, &hci_cb_list) {
 		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 		if (cb->security_cfm)
 			cb->security_cfm(conn, status, encrypt);
 	}
 	read_unlock_bh(&hci_cb_list_lock);
 }
 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 {
 	struct list_head *p;
 	read_lock_bh(&hci_cb_list_lock);
 	list_for_each(p, &hci_cb_list) {
 		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 		if (cb->key_change_cfm)
 			cb->key_change_cfm(conn, status);
 	}
 	read_unlock_bh(&hci_cb_list_lock);
 }
 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 {
 	struct list_head *p;
 	read_lock_bh(&hci_cb_list_lock);
 	list_for_each(p, &hci_cb_list) {
 		struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 		if (cb->role_switch_cfm)
 			cb->role_switch_cfm(conn, status, role);
 	}
 	read_unlock_bh(&hci_cb_list_lock);
 }
 int hci_register_cb(struct hci_cb *hcb);
 int hci_unregister_cb(struct hci_cb *hcb);
 int hci_register_notifier(struct notifier_block *nb);
 int hci_unregister_notifier(struct notifier_block *nb);
 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 /* ----- HCI Sockets ----- */
 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
 /* HCI info for socket */
 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 struct hci_pinfo {
 	struct bt_sock    bt;
 	struct hci_dev    *hdev;
 	struct hci_filter filter;
 	__u32             cmsg_mask;
 };
 /* HCI security filter */
 #define HCI_SFLT_MAX_OGF  5
 struct hci_sec_filter {
 	__u32 type_mask;
 	__u32 event_mask[2];
 	__u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 };
 /* ----- HCI requests ----- */
 #define HCI_REQ_DONE	  0
 #define HCI_REQ_PEND	  1
 #define HCI_REQ_CANCELED  2
 #define hci_req_lock(d)		mutex_lock(&d->req_lock)
 #define hci_req_unlock(d)	mutex_unlock(&d->req_lock)
 void hci_req_complete(struct hci_dev *hdev, int result);
 #endif /* __HCI_CORE_H */

net/bluetooth/hci_core.c

Diff comments View file @ 943da25

 /*
    BlueZ - Bluetooth protocol stack for Linux
    Copyright (C) 2000-2001 Qualcomm Incorporated
    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 2 as
    published by the Free Software Foundation;
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
    SOFTWARE IS DISCLAIMED.
 */
 /* Bluetooth HCI core. */
 #include <linux/jiffies.h>
 #include <linux/module.h>
 #include <linux/kmod.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
 #include <linux/fcntl.h>
 #include <linux/init.h>
 #include <linux/skbuff.h>
 #include <linux/interrupt.h>
 #include <linux/notifier.h>
 #include <linux/rfkill.h>
 #include <net/sock.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/unaligned.h>
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 static void hci_cmd_task(unsigned long arg);
 static void hci_rx_task(unsigned long arg);
 static void hci_tx_task(unsigned long arg);
 static void hci_notify(struct hci_dev *hdev, int event);
 static DEFINE_RWLOCK(hci_task_lock);
 /* HCI device list */
 LIST_HEAD(hci_dev_list);
 DEFINE_RWLOCK(hci_dev_list_lock);
 /* HCI callback list */
 LIST_HEAD(hci_cb_list);
 DEFINE_RWLOCK(hci_cb_list_lock);
 /* HCI protocols */
 #define HCI_MAX_PROTO	2
 struct hci_proto *hci_proto[HCI_MAX_PROTO];
 /* HCI notifiers list */
 static ATOMIC_NOTIFIER_HEAD(hci_notifier);
 /* ---- HCI notifications ---- */
 int hci_register_notifier(struct notifier_block *nb)
 {
 	return atomic_notifier_chain_register(&hci_notifier, nb);
 }
 int hci_unregister_notifier(struct notifier_block *nb)
 {
 	return atomic_notifier_chain_unregister(&hci_notifier, nb);
 }
 static void hci_notify(struct hci_dev *hdev, int event)
 {
 	atomic_notifier_call_chain(&hci_notifier, event, hdev);
 }
 /* ---- HCI requests ---- */
 void hci_req_complete(struct hci_dev *hdev, int result)
 {
 	BT_DBG("%s result 0x%2.2x", hdev->name, result);
 	if (hdev->req_status == HCI_REQ_PEND) {
 		hdev->req_result = result;
 		hdev->req_status = HCI_REQ_DONE;
 		wake_up_interruptible(&hdev->req_wait_q);
 	}
 }
 static void hci_req_cancel(struct hci_dev *hdev, int err)
 {
 	BT_DBG("%s err 0x%2.2x", hdev->name, err);
 	if (hdev->req_status == HCI_REQ_PEND) {
 		hdev->req_result = err;
 		hdev->req_status = HCI_REQ_CANCELED;
 		wake_up_interruptible(&hdev->req_wait_q);
 	}
 }
 /* Execute request and wait for completion. */
 static int __hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
 				unsigned long opt, __u32 timeout)
 {
 	DECLARE_WAITQUEUE(wait, current);
 	int err = 0;
 	BT_DBG("%s start", hdev->name);
 	hdev->req_status = HCI_REQ_PEND;
 	add_wait_queue(&hdev->req_wait_q, &wait);
 	set_current_state(TASK_INTERRUPTIBLE);
 	req(hdev, opt);
 	schedule_timeout(timeout);
 	remove_wait_queue(&hdev->req_wait_q, &wait);
 	if (signal_pending(current))
 		return -EINTR;
 	switch (hdev->req_status) {
 	case HCI_REQ_DONE:
 		err = -bt_err(hdev->req_result);
 		break;
 	case HCI_REQ_CANCELED:
 		err = -hdev->req_result;
 		break;
 	default:
 		err = -ETIMEDOUT;
 		break;
 	}
 	hdev->req_status = hdev->req_result = 0;
 	BT_DBG("%s end: err %d", hdev->name, err);
 	return err;
 }
 static inline int hci_request(struct hci_dev *hdev, void (*req)(struct hci_dev *hdev, unsigned long opt),
 				unsigned long opt, __u32 timeout)
 {
 	int ret;
 	if (!test_bit(HCI_UP, &hdev->flags))
 		return -ENETDOWN;
 	/* Serialize all requests */
 	hci_req_lock(hdev);
 	ret = __hci_request(hdev, req, opt, timeout);
 	hci_req_unlock(hdev);
 	return ret;
 }
 static void hci_reset_req(struct hci_dev *hdev, unsigned long opt)
 {
 	BT_DBG("%s %ld", hdev->name, opt);
 	/* Reset device */
 	hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
 }
 static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
 {
 	struct sk_buff *skb;
 	__le16 param;
 	__u8 flt_type;
 	BT_DBG("%s %ld", hdev->name, opt);
 	/* Driver initialization */
 	/* Special commands */
 	while ((skb = skb_dequeue(&hdev->driver_init))) {
 		bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
 		skb->dev = (void *) hdev;
 		skb_queue_tail(&hdev->cmd_q, skb);
 		tasklet_schedule(&hdev->cmd_task);
 	}
 	skb_queue_purge(&hdev->driver_init);
 	/* Mandatory initialization */
 	/* Reset */
 	if (!test_bit(HCI_QUIRK_NO_RESET, &hdev->quirks))
 			hci_send_cmd(hdev, HCI_OP_RESET, 0, NULL);
 	/* Read Local Supported Features */
 	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
 	/* Read Local Version */
 	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL);
 	/* Read Buffer Size (ACL mtu, max pkt, etc.) */
 	hci_send_cmd(hdev, HCI_OP_READ_BUFFER_SIZE, 0, NULL);
 #if 0
 	/* Host buffer size */
 	{
 		struct hci_cp_host_buffer_size cp;
 		cp.acl_mtu = cpu_to_le16(HCI_MAX_ACL_SIZE);
 		cp.sco_mtu = HCI_MAX_SCO_SIZE;
 		cp.acl_max_pkt = cpu_to_le16(0xffff);
 		cp.sco_max_pkt = cpu_to_le16(0xffff);
 		hci_send_cmd(hdev, HCI_OP_HOST_BUFFER_SIZE, sizeof(cp), &cp);
 	}
 #endif
 	/* Read BD Address */
 	hci_send_cmd(hdev, HCI_OP_READ_BD_ADDR, 0, NULL);
 	/* Read Class of Device */
 	hci_send_cmd(hdev, HCI_OP_READ_CLASS_OF_DEV, 0, NULL);
 	/* Read Local Name */
 	hci_send_cmd(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL);
 	/* Read Voice Setting */
 	hci_send_cmd(hdev, HCI_OP_READ_VOICE_SETTING, 0, NULL);
 	/* Optional initialization */
 	/* Clear Event Filters */
 	flt_type = HCI_FLT_CLEAR_ALL;
 	hci_send_cmd(hdev, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
 	/* Page timeout ~20 secs */
 	param = cpu_to_le16(0x8000);
 	hci_send_cmd(hdev, HCI_OP_WRITE_PG_TIMEOUT, 2, &param);
 	/* Connection accept timeout ~20 secs */
 	param = cpu_to_le16(0x7d00);
 	hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
 }
 static void hci_scan_req(struct hci_dev *hdev, unsigned long opt)
 {
 	__u8 scan = opt;
 	BT_DBG("%s %x", hdev->name, scan);
 	/* Inquiry and Page scans */
 	hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
 }
 static void hci_auth_req(struct hci_dev *hdev, unsigned long opt)
 {
 	__u8 auth = opt;
 	BT_DBG("%s %x", hdev->name, auth);
 	/* Authentication */
 	hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, 1, &auth);
 }
 static void hci_encrypt_req(struct hci_dev *hdev, unsigned long opt)
 {
 	__u8 encrypt = opt;
 	BT_DBG("%s %x", hdev->name, encrypt);
 	/* Encryption */
 	hci_send_cmd(hdev, HCI_OP_WRITE_ENCRYPT_MODE, 1, &encrypt);
 }
 static void hci_linkpol_req(struct hci_dev *hdev, unsigned long opt)
 {
 	__le16 policy = cpu_to_le16(opt);
 	BT_DBG("%s %x", hdev->name, policy);
 	/* Default link policy */
 	hci_send_cmd(hdev, HCI_OP_WRITE_DEF_LINK_POLICY, 2, &policy);
 }
 /* Get HCI device by index.
  * Device is held on return. */
 struct hci_dev *hci_dev_get(int index)
 {
 	struct hci_dev *hdev = NULL;
 	struct list_head *p;
 	BT_DBG("%d", index);
 	if (index < 0)
 		return NULL;
 	read_lock(&hci_dev_list_lock);
 	list_for_each(p, &hci_dev_list) {
 		struct hci_dev *d = list_entry(p, struct hci_dev, list);
 		if (d->id == index) {
 			hdev = hci_dev_hold(d);
 			break;
 		}
 	}
 	read_unlock(&hci_dev_list_lock);
 	return hdev;
 }
 /* ---- Inquiry support ---- */
 static void inquiry_cache_flush(struct hci_dev *hdev)
 {
 	struct inquiry_cache *cache = &hdev->inq_cache;
 	struct inquiry_entry *next  = cache->list, *e;
 	BT_DBG("cache %p", cache);
 	cache->list = NULL;
 	while ((e = next)) {
 		next = e->next;
 		kfree(e);
 	}
 }
 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr)
 {
 	struct inquiry_cache *cache = &hdev->inq_cache;
 	struct inquiry_entry *e;
 	BT_DBG("cache %p, %s", cache, batostr(bdaddr));
 	for (e = cache->list; e; e = e->next)
 		if (!bacmp(&e->data.bdaddr, bdaddr))
 			break;
 	return e;
 }
 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data)
 {
 	struct inquiry_cache *cache = &hdev->inq_cache;
 	struct inquiry_entry *e;
 	BT_DBG("cache %p, %s", cache, batostr(&data->bdaddr));
 	if (!(e = hci_inquiry_cache_lookup(hdev, &data->bdaddr))) {
 		/* Entry not in the cache. Add new one. */
 		if (!(e = kzalloc(sizeof(struct inquiry_entry), GFP_ATOMIC)))
 			return;
 		e->next     = cache->list;
 		cache->list = e;
 	}
 	memcpy(&e->data, data, sizeof(*data));
 	e->timestamp = jiffies;
 	cache->timestamp = jiffies;
 }
 static int inquiry_cache_dump(struct hci_dev *hdev, int num, __u8 *buf)
 {
 	struct inquiry_cache *cache = &hdev->inq_cache;
 	struct inquiry_info *info = (struct inquiry_info *) buf;
 	struct inquiry_entry *e;
 	int copied = 0;
 	for (e = cache->list; e && copied < num; e = e->next, copied++) {
 		struct inquiry_data *data = &e->data;
 		bacpy(&info->bdaddr, &data->bdaddr);
 		info->pscan_rep_mode	= data->pscan_rep_mode;
 		info->pscan_period_mode	= data->pscan_period_mode;
 		info->pscan_mode	= data->pscan_mode;
 		memcpy(info->dev_class, data->dev_class, 3);
 		info->clock_offset	= data->clock_offset;
 		info++;
 	}
 	BT_DBG("cache %p, copied %d", cache, copied);
 	return copied;
 }
 static void hci_inq_req(struct hci_dev *hdev, unsigned long opt)
 {
 	struct hci_inquiry_req *ir = (struct hci_inquiry_req *) opt;
 	struct hci_cp_inquiry cp;
 	BT_DBG("%s", hdev->name);
 	if (test_bit(HCI_INQUIRY, &hdev->flags))
 		return;
 	/* Start Inquiry */
 	memcpy(&cp.lap, &ir->lap, 3);
 	cp.length  = ir->length;
 	cp.num_rsp = ir->num_rsp;
 	hci_send_cmd(hdev, HCI_OP_INQUIRY, sizeof(cp), &cp);
 }
 int hci_inquiry(void __user *arg)
 {
 	__u8 __user *ptr = arg;
 	struct hci_inquiry_req ir;
 	struct hci_dev *hdev;
 	int err = 0, do_inquiry = 0, max_rsp;
 	long timeo;
 	__u8 *buf;
 	if (copy_from_user(&ir, ptr, sizeof(ir)))
 		return -EFAULT;
 	if (!(hdev = hci_dev_get(ir.dev_id)))
 		return -ENODEV;
 	hci_dev_lock_bh(hdev);
 	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
 					inquiry_cache_empty(hdev) ||
 					ir.flags & IREQ_CACHE_FLUSH) {
 		inquiry_cache_flush(hdev);
 		do_inquiry = 1;
 	}
 	hci_dev_unlock_bh(hdev);
 	timeo = ir.length * msecs_to_jiffies(2000);
 	if (do_inquiry && (err = hci_request(hdev, hci_inq_req, (unsigned long)&ir, timeo)) < 0)
 		goto done;
 	/* for unlimited number of responses we will use buffer with 255 entries */
 	max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp;
 	/* cache_dump can't sleep. Therefore we allocate temp buffer and then
 	 * copy it to the user space.
 	 */
 	if (!(buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL))) {
 		err = -ENOMEM;
 		goto done;
 	}
 	hci_dev_lock_bh(hdev);
 	ir.num_rsp = inquiry_cache_dump(hdev, max_rsp, buf);
 	hci_dev_unlock_bh(hdev);
 	BT_DBG("num_rsp %d", ir.num_rsp);
 	if (!copy_to_user(ptr, &ir, sizeof(ir))) {
 		ptr += sizeof(ir);
 		if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) *
 					ir.num_rsp))
 			err = -EFAULT;
 	} else
 		err = -EFAULT;
 	kfree(buf);
 done:
 	hci_dev_put(hdev);
 	return err;
 }
 /* ---- HCI ioctl helpers ---- */
 int hci_dev_open(__u16 dev)
 {
 	struct hci_dev *hdev;
 	int ret = 0;
 	if (!(hdev = hci_dev_get(dev)))
 		return -ENODEV;
 	BT_DBG("%s %p", hdev->name, hdev);
 	hci_req_lock(hdev);
 	if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
 		ret = -ERFKILL;
 		goto done;
 	}
 	if (test_bit(HCI_UP, &hdev->flags)) {
 		ret = -EALREADY;
 		goto done;
 	}
 	if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
 		set_bit(HCI_RAW, &hdev->flags);
+	/* Treat all non BR/EDR controllers as raw devices for now */
+	if (hdev->dev_type != HCI_BREDR)
+		set_bit(HCI_RAW, &hdev->flags);
 	if (hdev->open(hdev)) {
 		ret = -EIO;
 		goto done;
 	}
 	if (!test_bit(HCI_RAW, &hdev->flags)) {
 		atomic_set(&hdev->cmd_cnt, 1);
 		set_bit(HCI_INIT, &hdev->flags);
 		//__hci_request(hdev, hci_reset_req, 0, HZ);
 		ret = __hci_request(hdev, hci_init_req, 0,
 					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
 	if (!ret) {
 		hci_dev_hold(hdev);
 		set_bit(HCI_UP, &hdev->flags);
 		hci_notify(hdev, HCI_DEV_UP);
 	} else {
 		/* Init failed, cleanup */
 		tasklet_kill(&hdev->rx_task);
 		tasklet_kill(&hdev->tx_task);
 		tasklet_kill(&hdev->cmd_task);
 		skb_queue_purge(&hdev->cmd_q);
 		skb_queue_purge(&hdev->rx_q);
 		if (hdev->flush)
 			hdev->flush(hdev);
 		if (hdev->sent_cmd) {
 			kfree_skb(hdev->sent_cmd);
 			hdev->sent_cmd = NULL;
 		}
 		hdev->close(hdev);
 		hdev->flags = 0;
 	}
 done:
 	hci_req_unlock(hdev);
 	hci_dev_put(hdev);
 	return ret;
 }
 static int hci_dev_do_close(struct hci_dev *hdev)
 {
 	BT_DBG("%s %p", hdev->name, hdev);
 	hci_req_cancel(hdev, ENODEV);
 	hci_req_lock(hdev);
 	if (!test_and_clear_bit(HCI_UP, &hdev->flags)) {
 		hci_req_unlock(hdev);
 		return 0;
 	}
 	/* Kill RX and TX tasks */
 	tasklet_kill(&hdev->rx_task);
 	tasklet_kill(&hdev->tx_task);
 	hci_dev_lock_bh(hdev);
 	inquiry_cache_flush(hdev);
 	hci_conn_hash_flush(hdev);
 	hci_dev_unlock_bh(hdev);
 	hci_notify(hdev, HCI_DEV_DOWN);
 	if (hdev->flush)
 		hdev->flush(hdev);
 	/* Reset device */
 	skb_queue_purge(&hdev->cmd_q);
 	atomic_set(&hdev->cmd_cnt, 1);
 	if (!test_bit(HCI_RAW, &hdev->flags)) {
 		set_bit(HCI_INIT, &hdev->flags);
 		__hci_request(hdev, hci_reset_req, 0,
 					msecs_to_jiffies(250));
 		clear_bit(HCI_INIT, &hdev->flags);
 	}
 	/* Kill cmd task */
 	tasklet_kill(&hdev->cmd_task);
 	/* Drop queues */
 	skb_queue_purge(&hdev->rx_q);
 	skb_queue_purge(&hdev->cmd_q);
 	skb_queue_purge(&hdev->raw_q);
 	/* Drop last sent command */
 	if (hdev->sent_cmd) {
 		kfree_skb(hdev->sent_cmd);
 		hdev->sent_cmd = NULL;
 	}
 	/* After this point our queues are empty
 	 * and no tasks are scheduled. */
 	hdev->close(hdev);
 	/* Clear flags */
 	hdev->flags = 0;
 	hci_req_unlock(hdev);
 	hci_dev_put(hdev);
 	return 0;
 }
 int hci_dev_close(__u16 dev)
 {
 	struct hci_dev *hdev;
 	int err;
 	if (!(hdev = hci_dev_get(dev)))
 		return -ENODEV;
 	err = hci_dev_do_close(hdev);
 	hci_dev_put(hdev);
 	return err;
 }
 int hci_dev_reset(__u16 dev)
 {
 	struct hci_dev *hdev;
 	int ret = 0;
 	if (!(hdev = hci_dev_get(dev)))
 		return -ENODEV;
 	hci_req_lock(hdev);
 	tasklet_disable(&hdev->tx_task);
 	if (!test_bit(HCI_UP, &hdev->flags))
 		goto done;
 	/* Drop queues */
 	skb_queue_purge(&hdev->rx_q);
 	skb_queue_purge(&hdev->cmd_q);
 	hci_dev_lock_bh(hdev);
 	inquiry_cache_flush(hdev);
 	hci_conn_hash_flush(hdev);
 	hci_dev_unlock_bh(hdev);
 	if (hdev->flush)
 		hdev->flush(hdev);
 	atomic_set(&hdev->cmd_cnt, 1);
 	hdev->acl_cnt = 0; hdev->sco_cnt = 0;
 	if (!test_bit(HCI_RAW, &hdev->flags))
 		ret = __hci_request(hdev, hci_reset_req, 0,
 					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 done:
 	tasklet_enable(&hdev->tx_task);
 	hci_req_unlock(hdev);
 	hci_dev_put(hdev);
 	return ret;
 }
 int hci_dev_reset_stat(__u16 dev)
 {
 	struct hci_dev *hdev;
 	int ret = 0;
 	if (!(hdev = hci_dev_get(dev)))
 		return -ENODEV;
 	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
 	hci_dev_put(hdev);
 	return ret;
 }
 int hci_dev_cmd(unsigned int cmd, void __user *arg)
 {
 	struct hci_dev *hdev;
 	struct hci_dev_req dr;
 	int err = 0;
 	if (copy_from_user(&dr, arg, sizeof(dr)))
 		return -EFAULT;
 	if (!(hdev = hci_dev_get(dr.dev_id)))
 		return -ENODEV;
 	switch (cmd) {
 	case HCISETAUTH:
 		err = hci_request(hdev, hci_auth_req, dr.dev_opt,
 					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 	case HCISETENCRYPT:
 		if (!lmp_encrypt_capable(hdev)) {
 			err = -EOPNOTSUPP;
 			break;
 		}
 		if (!test_bit(HCI_AUTH, &hdev->flags)) {
 			/* Auth must be enabled first */
 			err = hci_request(hdev, hci_auth_req, dr.dev_opt,
 					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 			if (err)
 				break;
 		}
 		err = hci_request(hdev, hci_encrypt_req, dr.dev_opt,
 					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 	case HCISETSCAN:
 		err = hci_request(hdev, hci_scan_req, dr.dev_opt,
 					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 	case HCISETLINKPOL:
 		err = hci_request(hdev, hci_linkpol_req, dr.dev_opt,
 					msecs_to_jiffies(HCI_INIT_TIMEOUT));
 		break;
 	case HCISETLINKMODE:
 		hdev->link_mode = ((__u16) dr.dev_opt) &
 					(HCI_LM_MASTER | HCI_LM_ACCEPT);
 		break;
 	case HCISETPTYPE:
 		hdev->pkt_type = (__u16) dr.dev_opt;
 		break;
 	case HCISETACLMTU:
 		hdev->acl_mtu  = *((__u16 *) &dr.dev_opt + 1);
 		hdev->acl_pkts = *((__u16 *) &dr.dev_opt + 0);
 		break;
 	case HCISETSCOMTU:
 		hdev->sco_mtu  = *((__u16 *) &dr.dev_opt + 1);
 		hdev->sco_pkts = *((__u16 *) &dr.dev_opt + 0);
 		break;
 	default:
 		err = -EINVAL;
 		break;
 	}
 	hci_dev_put(hdev);
 	return err;
 }
 int hci_get_dev_list(void __user *arg)
 {
 	struct hci_dev_list_req *dl;
 	struct hci_dev_req *dr;
 	struct list_head *p;
 	int n = 0, size, err;
 	__u16 dev_num;
 	if (get_user(dev_num, (__u16 __user *) arg))
 		return -EFAULT;
 	if (!dev_num || dev_num > (PAGE_SIZE * 2) / sizeof(*dr))
 		return -EINVAL;
 	size = sizeof(*dl) + dev_num * sizeof(*dr);
 	if (!(dl = kzalloc(size, GFP_KERNEL)))
 		return -ENOMEM;
 	dr = dl->dev_req;
 	read_lock_bh(&hci_dev_list_lock);
 	list_for_each(p, &hci_dev_list) {
 		struct hci_dev *hdev;
 		hdev = list_entry(p, struct hci_dev, list);
 		(dr + n)->dev_id  = hdev->id;
 		(dr + n)->dev_opt = hdev->flags;
 		if (++n >= dev_num)
 			break;
 	}
 	read_unlock_bh(&hci_dev_list_lock);
 	dl->dev_num = n;
 	size = sizeof(*dl) + n * sizeof(*dr);
 	err = copy_to_user(arg, dl, size);
 	kfree(dl);
 	return err ? -EFAULT : 0;
 }
 int hci_get_dev_info(void __user *arg)
 {
 	struct hci_dev *hdev;
 	struct hci_dev_info di;
 	int err = 0;
 	if (copy_from_user(&di, arg, sizeof(di)))
 		return -EFAULT;
 	if (!(hdev = hci_dev_get(di.dev_id)))
 		return -ENODEV;
 	strcpy(di.name, hdev->name);
 	di.bdaddr   = hdev->bdaddr;
-	di.type     = hdev->bus;
+	di.type     = (hdev->bus & 0x0f) | (hdev->dev_type << 4);
 	di.flags    = hdev->flags;
 	di.pkt_type = hdev->pkt_type;
 	di.acl_mtu  = hdev->acl_mtu;
 	di.acl_pkts = hdev->acl_pkts;
 	di.sco_mtu  = hdev->sco_mtu;
 	di.sco_pkts = hdev->sco_pkts;
 	di.link_policy = hdev->link_policy;
 	di.link_mode   = hdev->link_mode;
 	memcpy(&di.stat, &hdev->stat, sizeof(di.stat));
 	memcpy(&di.features, &hdev->features, sizeof(di.features));
 	if (copy_to_user(arg, &di, sizeof(di)))
 		err = -EFAULT;
 	hci_dev_put(hdev);
 	return err;
 }
 /* ---- Interface to HCI drivers ---- */
 static int hci_rfkill_set_block(void *data, bool blocked)
 {
 	struct hci_dev *hdev = data;
 	BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked);
 	if (!blocked)
 		return 0;
 	hci_dev_do_close(hdev);
 	return 0;
 }
 static const struct rfkill_ops hci_rfkill_ops = {
 	.set_block = hci_rfkill_set_block,
 };
 /* Alloc HCI device */
 struct hci_dev *hci_alloc_dev(void)
 {
 	struct hci_dev *hdev;
 	hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);
 	if (!hdev)
 		return NULL;
 	skb_queue_head_init(&hdev->driver_init);
 	return hdev;
 }
 EXPORT_SYMBOL(hci_alloc_dev);
 /* Free HCI device */
 void hci_free_dev(struct hci_dev *hdev)
 {
 	skb_queue_purge(&hdev->driver_init);
 	/* will free via device release */
 	put_device(&hdev->dev);
 }
 EXPORT_SYMBOL(hci_free_dev);
 /* Register HCI device */
 int hci_register_dev(struct hci_dev *hdev)
 {
 	struct list_head *head = &hci_dev_list, *p;
 	int i, id = 0;
 	BT_DBG("%p name %s bus %d owner %p", hdev, hdev->name,
 						hdev->bus, hdev->owner);
 	if (!hdev->open || !hdev->close || !hdev->destruct)
 		return -EINVAL;
 	write_lock_bh(&hci_dev_list_lock);
 	/* Find first available device id */
 	list_for_each(p, &hci_dev_list) {
 		if (list_entry(p, struct hci_dev, list)->id != id)
 			break;
 		head = p; id++;
 	}
 	sprintf(hdev->name, "hci%d", id);
 	hdev->id = id;
 	list_add(&hdev->list, head);
 	atomic_set(&hdev->refcnt, 1);
 	spin_lock_init(&hdev->lock);
 	hdev->flags = 0;
 	hdev->pkt_type  = (HCI_DM1 | HCI_DH1 | HCI_HV1);
 	hdev->esco_type = (ESCO_HV1);
 	hdev->link_mode = (HCI_LM_ACCEPT);
 	hdev->idle_timeout = 0;
 	hdev->sniff_max_interval = 800;
 	hdev->sniff_min_interval = 80;
 	tasklet_init(&hdev->cmd_task, hci_cmd_task,(unsigned long) hdev);
 	tasklet_init(&hdev->rx_task, hci_rx_task, (unsigned long) hdev);
 	tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev);
 	skb_queue_head_init(&hdev->rx_q);
 	skb_queue_head_init(&hdev->cmd_q);
 	skb_queue_head_init(&hdev->raw_q);
 	for (i = 0; i < 3; i++)
 		hdev->reassembly[i] = NULL;
 	init_waitqueue_head(&hdev->req_wait_q);
 	mutex_init(&hdev->req_lock);
 	inquiry_cache_init(hdev);
 	hci_conn_hash_init(hdev);
 	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
 	atomic_set(&hdev->promisc, 0);
 	write_unlock_bh(&hci_dev_list_lock);
 	hci_register_sysfs(hdev);
 	hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev,
 				RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, hdev);
 	if (hdev->rfkill) {
 		if (rfkill_register(hdev->rfkill) < 0) {
 			rfkill_destroy(hdev->rfkill);
 			hdev->rfkill = NULL;
 		}
 	}
 	hci_notify(hdev, HCI_DEV_REG);
 	return id;
 }
 EXPORT_SYMBOL(hci_register_dev);
 /* Unregister HCI device */
 int hci_unregister_dev(struct hci_dev *hdev)
 {
 	int i;
 	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 	write_lock_bh(&hci_dev_list_lock);
 	list_del(&hdev->list);
 	write_unlock_bh(&hci_dev_list_lock);
 	hci_dev_do_close(hdev);
 	for (i = 0; i < 3; i++)
 		kfree_skb(hdev->reassembly[i]);
 	hci_notify(hdev, HCI_DEV_UNREG);
 	if (hdev->rfkill) {
 		rfkill_unregister(hdev->rfkill);
 		rfkill_destroy(hdev->rfkill);
 	}
 	hci_unregister_sysfs(hdev);
 	__hci_dev_put(hdev);
 	return 0;
 }
 EXPORT_SYMBOL(hci_unregister_dev);
 /* Suspend HCI device */
 int hci_suspend_dev(struct hci_dev *hdev)
 {
 	hci_notify(hdev, HCI_DEV_SUSPEND);
 	return 0;
 }
 EXPORT_SYMBOL(hci_suspend_dev);
 /* Resume HCI device */
 int hci_resume_dev(struct hci_dev *hdev)
 {
 	hci_notify(hdev, HCI_DEV_RESUME);
 	return 0;
 }
 EXPORT_SYMBOL(hci_resume_dev);
 /* Receive frame from HCI drivers */
 int hci_recv_frame(struct sk_buff *skb)
 {
 	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
 				&& !test_bit(HCI_INIT, &hdev->flags))) {
 		kfree_skb(skb);
 		return -ENXIO;
 	}
 	/* Incomming skb */
 	bt_cb(skb)->incoming = 1;
 	/* Time stamp */
 	__net_timestamp(skb);
 	/* Queue frame for rx task */
 	skb_queue_tail(&hdev->rx_q, skb);
 	tasklet_schedule(&hdev->rx_task);
 	return 0;
 }
 EXPORT_SYMBOL(hci_recv_frame);
 /* Receive packet type fragment */
 #define __reassembly(hdev, type)  ((hdev)->reassembly[(type) - 2])
 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
 {
 	if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT)
 		return -EILSEQ;
 	while (count) {
 		struct sk_buff *skb = __reassembly(hdev, type);
 		struct { int expect; } *scb;
 		int len = 0;
 		if (!skb) {
 			/* Start of the frame */
 			switch (type) {
 			case HCI_EVENT_PKT:
 				if (count >= HCI_EVENT_HDR_SIZE) {
 					struct hci_event_hdr *h = data;
 					len = HCI_EVENT_HDR_SIZE + h->plen;
 				} else
 					return -EILSEQ;
 				break;
 			case HCI_ACLDATA_PKT:
 				if (count >= HCI_ACL_HDR_SIZE) {
 					struct hci_acl_hdr *h = data;
 					len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen);
 				} else
 					return -EILSEQ;
 				break;
 			case HCI_SCODATA_PKT:
 				if (count >= HCI_SCO_HDR_SIZE) {
 					struct hci_sco_hdr *h = data;
 					len = HCI_SCO_HDR_SIZE + h->dlen;
 				} else
 					return -EILSEQ;
 				break;
 			}
 			skb = bt_skb_alloc(len, GFP_ATOMIC);
 			if (!skb) {
 				BT_ERR("%s no memory for packet", hdev->name);
 				return -ENOMEM;
 			}
 			skb->dev = (void *) hdev;
 			bt_cb(skb)->pkt_type = type;
 			__reassembly(hdev, type) = skb;
 			scb = (void *) skb->cb;
 			scb->expect = len;
 		} else {
 			/* Continuation */
 			scb = (void *) skb->cb;
 			len = scb->expect;
 		}
 		len = min(len, count);
 		memcpy(skb_put(skb, len), data, len);
 		scb->expect -= len;
 		if (scb->expect == 0) {
 			/* Complete frame */
 			__reassembly(hdev, type) = NULL;
 			bt_cb(skb)->pkt_type = type;
 			hci_recv_frame(skb);
 		}
 		count -= len; data += len;
 	}
 	return 0;
 }
 EXPORT_SYMBOL(hci_recv_fragment);
 /* ---- Interface to upper protocols ---- */
 /* Register/Unregister protocols.
  * hci_task_lock is used to ensure that no tasks are running. */
 int hci_register_proto(struct hci_proto *hp)
 {
 	int err = 0;
 	BT_DBG("%p name %s id %d", hp, hp->name, hp->id);
 	if (hp->id >= HCI_MAX_PROTO)
 		return -EINVAL;
 	write_lock_bh(&hci_task_lock);
 	if (!hci_proto[hp->id])
 		hci_proto[hp->id] = hp;
 	else
 		err = -EEXIST;
 	write_unlock_bh(&hci_task_lock);
 	return err;
 }
 EXPORT_SYMBOL(hci_register_proto);
 int hci_unregister_proto(struct hci_proto *hp)
 {
 	int err = 0;
 	BT_DBG("%p name %s id %d", hp, hp->name, hp->id);
 	if (hp->id >= HCI_MAX_PROTO)
 		return -EINVAL;
 	write_lock_bh(&hci_task_lock);
 	if (hci_proto[hp->id])
 		hci_proto[hp->id] = NULL;
 	else
 		err = -ENOENT;
 	write_unlock_bh(&hci_task_lock);
 	return err;
 }
 EXPORT_SYMBOL(hci_unregister_proto);
 int hci_register_cb(struct hci_cb *cb)
 {
 	BT_DBG("%p name %s", cb, cb->name);
 	write_lock_bh(&hci_cb_list_lock);
 	list_add(&cb->list, &hci_cb_list);
 	write_unlock_bh(&hci_cb_list_lock);
 	return 0;
 }
 EXPORT_SYMBOL(hci_register_cb);
 int hci_unregister_cb(struct hci_cb *cb)
 {
 	BT_DBG("%p name %s", cb, cb->name);
 	write_lock_bh(&hci_cb_list_lock);
 	list_del(&cb->list);
 	write_unlock_bh(&hci_cb_list_lock);
 	return 0;
 }
 EXPORT_SYMBOL(hci_unregister_cb);
 static int hci_send_frame(struct sk_buff *skb)
 {
 	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	if (!hdev) {
 		kfree_skb(skb);
 		return -ENODEV;
 	}
 	BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
 	if (atomic_read(&hdev->promisc)) {
 		/* Time stamp */
 		__net_timestamp(skb);
 		hci_send_to_sock(hdev, skb);
 	}
 	/* Get rid of skb owner, prior to sending to the driver. */
 	skb_orphan(skb);
 	return hdev->send(skb);
 }
 /* Send HCI command */
 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param)
 {
 	int len = HCI_COMMAND_HDR_SIZE + plen;
 	struct hci_command_hdr *hdr;
 	struct sk_buff *skb;
 	BT_DBG("%s opcode 0x%x plen %d", hdev->name, opcode, plen);
 	skb = bt_skb_alloc(len, GFP_ATOMIC);
 	if (!skb) {
 		BT_ERR("%s no memory for command", hdev->name);
 		return -ENOMEM;
 	}
 	hdr = (struct hci_command_hdr *) skb_put(skb, HCI_COMMAND_HDR_SIZE);
 	hdr->opcode = cpu_to_le16(opcode);
 	hdr->plen   = plen;
 	if (plen)
 		memcpy(skb_put(skb, plen), param, plen);
 	BT_DBG("skb len %d", skb->len);
 	bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
 	skb->dev = (void *) hdev;
 	skb_queue_tail(&hdev->cmd_q, skb);
 	tasklet_schedule(&hdev->cmd_task);
 	return 0;
 }
 /* Get data from the previously sent command */
 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode)
 {
 	struct hci_command_hdr *hdr;
 	if (!hdev->sent_cmd)
 		return NULL;
 	hdr = (void *) hdev->sent_cmd->data;
 	if (hdr->opcode != cpu_to_le16(opcode))
 		return NULL;
 	BT_DBG("%s opcode 0x%x", hdev->name, opcode);
 	return hdev->sent_cmd->data + HCI_COMMAND_HDR_SIZE;
 }
 /* Send ACL data */
 static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags)
 {
 	struct hci_acl_hdr *hdr;
 	int len = skb->len;
 	skb_push(skb, HCI_ACL_HDR_SIZE);
 	skb_reset_transport_header(skb);
 	hdr = (struct hci_acl_hdr *)skb_transport_header(skb);
 	hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags));
 	hdr->dlen   = cpu_to_le16(len);
 }
 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags)
 {
 	struct hci_dev *hdev = conn->hdev;
 	struct sk_buff *list;
 	BT_DBG("%s conn %p flags 0x%x", hdev->name, conn, flags);
 	skb->dev = (void *) hdev;
 	bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
 	hci_add_acl_hdr(skb, conn->handle, flags | ACL_START);
 	if (!(list = skb_shinfo(skb)->frag_list)) {
 		/* Non fragmented */
 		BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len);
 		skb_queue_tail(&conn->data_q, skb);
 	} else {
 		/* Fragmented */
 		BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len);
 		skb_shinfo(skb)->frag_list = NULL;
 		/* Queue all fragments atomically */
 		spin_lock_bh(&conn->data_q.lock);
 		__skb_queue_tail(&conn->data_q, skb);
 		do {
 			skb = list; list = list->next;
 			skb->dev = (void *) hdev;
 			bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
 			hci_add_acl_hdr(skb, conn->handle, flags | ACL_CONT);
 			BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len);
 			__skb_queue_tail(&conn->data_q, skb);
 		} while (list);
 		spin_unlock_bh(&conn->data_q.lock);
 	}
 	tasklet_schedule(&hdev->tx_task);
 	return 0;
 }
 EXPORT_SYMBOL(hci_send_acl);
 /* Send SCO data */
 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
 {
 	struct hci_dev *hdev = conn->hdev;
 	struct hci_sco_hdr hdr;
 	BT_DBG("%s len %d", hdev->name, skb->len);
 	if (skb->len > hdev->sco_mtu) {
 		kfree_skb(skb);
 		return -EINVAL;
 	}
 	hdr.handle = cpu_to_le16(conn->handle);
 	hdr.dlen   = skb->len;
 	skb_push(skb, HCI_SCO_HDR_SIZE);
 	skb_reset_transport_header(skb);
 	memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE);
 	skb->dev = (void *) hdev;
 	bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
 	skb_queue_tail(&conn->data_q, skb);
 	tasklet_schedule(&hdev->tx_task);
 	return 0;
 }
 EXPORT_SYMBOL(hci_send_sco);
 /* ---- HCI TX task (outgoing data) ---- */
 /* HCI Connection scheduler */
 static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int *quote)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct hci_conn *conn = NULL;
 	int num = 0, min = ~0;
 	struct list_head *p;
 	/* We don't have to lock device here. Connections are always
 	 * added and removed with TX task disabled. */
 	list_for_each(p, &h->list) {
 		struct hci_conn *c;
 		c = list_entry(p, struct hci_conn, list);
 		if (c->type != type || skb_queue_empty(&c->data_q))
 			continue;
 		if (c->state != BT_CONNECTED && c->state != BT_CONFIG)
 			continue;
 		num++;
 		if (c->sent < min) {
 			min  = c->sent;
 			conn = c;
 		}
 	}
 	if (conn) {
 		int cnt = (type == ACL_LINK ? hdev->acl_cnt : hdev->sco_cnt);
 		int q = cnt / num;
 		*quote = q ? q : 1;
 	} else
 		*quote = 0;
 	BT_DBG("conn %p quote %d", conn, *quote);
 	return conn;
 }
 static inline void hci_acl_tx_to(struct hci_dev *hdev)
 {
 	struct hci_conn_hash *h = &hdev->conn_hash;
 	struct list_head *p;
 	struct hci_conn  *c;
 	BT_ERR("%s ACL tx timeout", hdev->name);
 	/* Kill stalled connections */
 	list_for_each(p, &h->list) {
 		c = list_entry(p, struct hci_conn, list);
 		if (c->type == ACL_LINK && c->sent) {
 			BT_ERR("%s killing stalled ACL connection %s",
 				hdev->name, batostr(&c->dst));
 			hci_acl_disconn(c, 0x13);
 		}
 	}
 }
 static inline void hci_sched_acl(struct hci_dev *hdev)
 {
 	struct hci_conn *conn;
 	struct sk_buff *skb;
 	int quote;
 	BT_DBG("%s", hdev->name);
 	if (!test_bit(HCI_RAW, &hdev->flags)) {
 		/* ACL tx timeout must be longer than maximum
 		 * link supervision timeout (40.9 seconds) */
 		if (!hdev->acl_cnt && time_after(jiffies, hdev->acl_last_tx + HZ * 45))
 			hci_acl_tx_to(hdev);
 	}
 	while (hdev->acl_cnt && (conn = hci_low_sent(hdev, ACL_LINK, &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
 			hci_conn_enter_active_mode(conn);
 			hci_send_frame(skb);
 			hdev->acl_last_tx = jiffies;
 			hdev->acl_cnt--;
 			conn->sent++;
 		}
 	}
 }
 /* Schedule SCO */
 static inline void hci_sched_sco(struct hci_dev *hdev)
 {
 	struct hci_conn *conn;
 	struct sk_buff *skb;
 	int quote;
 	BT_DBG("%s", hdev->name);
 	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
 			hci_send_frame(skb);
 			conn->sent++;
 			if (conn->sent == ~0)
 				conn->sent = 0;
 		}
 	}
 }
 static inline void hci_sched_esco(struct hci_dev *hdev)
 {
 	struct hci_conn *conn;
 	struct sk_buff *skb;
 	int quote;
 	BT_DBG("%s", hdev->name);
 	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
 			hci_send_frame(skb);
 			conn->sent++;
 			if (conn->sent == ~0)
 				conn->sent = 0;
 		}
 	}
 }
 static void hci_tx_task(unsigned long arg)
 {
 	struct hci_dev *hdev = (struct hci_dev *) arg;
 	struct sk_buff *skb;
 	read_lock(&hci_task_lock);
 	BT_DBG("%s acl %d sco %d", hdev->name, hdev->acl_cnt, hdev->sco_cnt);
 	/* Schedule queues and send stuff to HCI driver */
 	hci_sched_acl(hdev);
 	hci_sched_sco(hdev);
 	hci_sched_esco(hdev);
 	/* Send next queued raw (unknown type) packet */
 	while ((skb = skb_dequeue(&hdev->raw_q)))
 		hci_send_frame(skb);
 	read_unlock(&hci_task_lock);
 }
 /* ----- HCI RX task (incoming data proccessing) ----- */
 /* ACL data packet */
 static inline void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_acl_hdr *hdr = (void *) skb->data;
 	struct hci_conn *conn;
 	__u16 handle, flags;
 	skb_pull(skb, HCI_ACL_HDR_SIZE);
 	handle = __le16_to_cpu(hdr->handle);
 	flags  = hci_flags(handle);
 	handle = hci_handle(handle);
 	BT_DBG("%s len %d handle 0x%x flags 0x%x", hdev->name, skb->len, handle, flags);
 	hdev->stat.acl_rx++;
 	hci_dev_lock(hdev);
 	conn = hci_conn_hash_lookup_handle(hdev, handle);
 	hci_dev_unlock(hdev);
 	if (conn) {
 		register struct hci_proto *hp;
 		hci_conn_enter_active_mode(conn);
 		/* Send to upper protocol */
 		if ((hp = hci_proto[HCI_PROTO_L2CAP]) && hp->recv_acldata) {
 			hp->recv_acldata(conn, skb, flags);
 			return;
 		}
 	} else {
 		BT_ERR("%s ACL packet for unknown connection handle %d",
 			hdev->name, handle);
 	}
 	kfree_skb(skb);
 }
 /* SCO data packet */
 static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_sco_hdr *hdr = (void *) skb->data;
 	struct hci_conn *conn;
 	__u16 handle;
 	skb_pull(skb, HCI_SCO_HDR_SIZE);
 	handle = __le16_to_cpu(hdr->handle);
 	BT_DBG("%s len %d handle 0x%x", hdev->name, skb->len, handle);
 	hdev->stat.sco_rx++;
 	hci_dev_lock(hdev);
 	conn = hci_conn_hash_lookup_handle(hdev, handle);
 	hci_dev_unlock(hdev);
 	if (conn) {
 		register struct hci_proto *hp;
 		/* Send to upper protocol */
 		if ((hp = hci_proto[HCI_PROTO_SCO]) && hp->recv_scodata) {
 			hp->recv_scodata(conn, skb);
 			return;
 		}
 	} else {
 		BT_ERR("%s SCO packet for unknown connection handle %d",
 			hdev->name, handle);
 	}
 	kfree_skb(skb);
 }
 static void hci_rx_task(unsigned long arg)
 {
 	struct hci_dev *hdev = (struct hci_dev *) arg;
 	struct sk_buff *skb;
 	BT_DBG("%s", hdev->name);
 	read_lock(&hci_task_lock);
 	while ((skb = skb_dequeue(&hdev->rx_q))) {
 		if (atomic_read(&hdev->promisc)) {
 			/* Send copy to the sockets */
 			hci_send_to_sock(hdev, skb);
 		}
 		if (test_bit(HCI_RAW, &hdev->flags)) {
 			kfree_skb(skb);
 			continue;
 		}
 		if (test_bit(HCI_INIT, &hdev->flags)) {
 			/* Don't process data packets in this states. */
 			switch (bt_cb(skb)->pkt_type) {
 			case HCI_ACLDATA_PKT:
 			case HCI_SCODATA_PKT:
 				kfree_skb(skb);
 				continue;
 			}
 		}
 		/* Process frame */
 		switch (bt_cb(skb)->pkt_type) {
 		case HCI_EVENT_PKT:
 			hci_event_packet(hdev, skb);
 			break;
 		case HCI_ACLDATA_PKT:
 			BT_DBG("%s ACL data packet", hdev->name);
 			hci_acldata_packet(hdev, skb);
 			break;
 		case HCI_SCODATA_PKT:
 			BT_DBG("%s SCO data packet", hdev->name);
 			hci_scodata_packet(hdev, skb);
 			break;
 		default:
 			kfree_skb(skb);
 			break;
 		}
 	}
 	read_unlock(&hci_task_lock);
 }
 static void hci_cmd_task(unsigned long arg)
 {
 	struct hci_dev *hdev = (struct hci_dev *) arg;
 	struct sk_buff *skb;
 	BT_DBG("%s cmd %d", hdev->name, atomic_read(&hdev->cmd_cnt));
 	if (!atomic_read(&hdev->cmd_cnt) && time_after(jiffies, hdev->cmd_last_tx + HZ)) {
 		BT_ERR("%s command tx timeout", hdev->name);
 		atomic_set(&hdev->cmd_cnt, 1);
 	}
 	/* Send queued commands */
 	if (atomic_read(&hdev->cmd_cnt) && (skb = skb_dequeue(&hdev->cmd_q))) {
 		kfree_skb(hdev->sent_cmd);
 		if ((hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC))) {
 			atomic_dec(&hdev->cmd_cnt);
 			hci_send_frame(skb);
 			hdev->cmd_last_tx = jiffies;
 		} else {
 			skb_queue_head(&hdev->cmd_q, skb);
 			tasklet_schedule(&hdev->cmd_task);
 		}
 	}
 }

net/bluetooth/hci_sysfs.c

Diff comments View file @ 943da25

 /* Bluetooth HCI driver model support. */
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/debugfs.h>
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 struct class *bt_class = NULL;
 EXPORT_SYMBOL_GPL(bt_class);
 struct dentry *bt_debugfs = NULL;
 EXPORT_SYMBOL_GPL(bt_debugfs);
 static struct workqueue_struct *bt_workq;
 static inline char *link_typetostr(int type)
 {
 	switch (type) {
 	case ACL_LINK:
 		return "ACL";
 	case SCO_LINK:
 		return "SCO";
 	case ESCO_LINK:
 		return "eSCO";
 	default:
 		return "UNKNOWN";
 	}
 }
 static ssize_t show_link_type(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_conn *conn = dev_get_drvdata(dev);
 	return sprintf(buf, "%s\n", link_typetostr(conn->type));
 }
 static ssize_t show_link_address(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_conn *conn = dev_get_drvdata(dev);
 	bdaddr_t bdaddr;
 	baswap(&bdaddr, &conn->dst);
 	return sprintf(buf, "%s\n", batostr(&bdaddr));
 }
 static ssize_t show_link_features(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_conn *conn = dev_get_drvdata(dev);
 	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
 				conn->features[0], conn->features[1],
 				conn->features[2], conn->features[3],
 				conn->features[4], conn->features[5],
 				conn->features[6], conn->features[7]);
 }
 #define LINK_ATTR(_name,_mode,_show,_store) \
 struct device_attribute link_attr_##_name = __ATTR(_name,_mode,_show,_store)
 static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
 static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
 static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
 static struct attribute *bt_link_attrs[] = {
 	&link_attr_type.attr,
 	&link_attr_address.attr,
 	&link_attr_features.attr,
 	NULL
 };
 static struct attribute_group bt_link_group = {
 	.attrs = bt_link_attrs,
 };
 static const struct attribute_group *bt_link_groups[] = {
 	&bt_link_group,
 	NULL
 };
 static void bt_link_release(struct device *dev)
 {
 	void *data = dev_get_drvdata(dev);
 	kfree(data);
 }
 static struct device_type bt_link = {
 	.name    = "link",
 	.groups  = bt_link_groups,
 	.release = bt_link_release,
 };
 static void add_conn(struct work_struct *work)
 {
 	struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
 	struct hci_dev *hdev = conn->hdev;
 	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
 	dev_set_drvdata(&conn->dev, conn);
 	if (device_add(&conn->dev) < 0) {
 		BT_ERR("Failed to register connection device");
 		return;
 	}
 	hci_dev_hold(hdev);
 }
 /*
  * The rfcomm tty device will possibly retain even when conn
  * is down, and sysfs doesn't support move zombie device,
  * so we should move the device before conn device is destroyed.
  */
 static int __match_tty(struct device *dev, void *data)
 {
 	return !strncmp(dev_name(dev), "rfcomm", 6);
 }
 static void del_conn(struct work_struct *work)
 {
 	struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
 	struct hci_dev *hdev = conn->hdev;
 	if (!device_is_registered(&conn->dev))
 		return;
 	while (1) {
 		struct device *dev;
 		dev = device_find_child(&conn->dev, NULL, __match_tty);
 		if (!dev)
 			break;
 		device_move(dev, NULL, DPM_ORDER_DEV_LAST);
 		put_device(dev);
 	}
 	device_del(&conn->dev);
 	put_device(&conn->dev);
 	hci_dev_put(hdev);
 }
 void hci_conn_init_sysfs(struct hci_conn *conn)
 {
 	struct hci_dev *hdev = conn->hdev;
 	BT_DBG("conn %p", conn);
 	conn->dev.type = &bt_link;
 	conn->dev.class = bt_class;
 	conn->dev.parent = &hdev->dev;
 	device_initialize(&conn->dev);
 	INIT_WORK(&conn->work_add, add_conn);
 	INIT_WORK(&conn->work_del, del_conn);
 }
 void hci_conn_add_sysfs(struct hci_conn *conn)
 {
 	BT_DBG("conn %p", conn);
 	queue_work(bt_workq, &conn->work_add);
 }
 void hci_conn_del_sysfs(struct hci_conn *conn)
 {
 	BT_DBG("conn %p", conn);
 	queue_work(bt_workq, &conn->work_del);
 }
 static inline char *host_bustostr(int bus)
 {
 	switch (bus) {
 	case HCI_VIRTUAL:
 		return "VIRTUAL";
 	case HCI_USB:
 		return "USB";
 	case HCI_PCCARD:
 		return "PCCARD";
 	case HCI_UART:
 		return "UART";
 	case HCI_RS232:
 		return "RS232";
 	case HCI_PCI:
 		return "PCI";
 	case HCI_SDIO:
 		return "SDIO";
 	default:
 		return "UNKNOWN";
 	}
 }
+static inline char *host_typetostr(int type)
+{
+	switch (type) {
+	case HCI_BREDR:
+		return "BR/EDR";
+	case HCI_80211:
+		return "802.11";
+	default:
+		return "UNKNOWN";
+	}
+}
 static ssize_t show_bus(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
 }
+static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct hci_dev *hdev = dev_get_drvdata(dev);
+	return sprintf(buf, "%s\n", host_typetostr(hdev->dev_type));
+}
 static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	char name[249];
 	int i;
 	for (i = 0; i < 248; i++)
 		name[i] = hdev->dev_name[i];
 	name[248] = '\0';
 	return sprintf(buf, "%s\n", name);
 }
 static ssize_t show_class(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "0x%.2x%.2x%.2x\n",
 			hdev->dev_class[2], hdev->dev_class[1], hdev->dev_class[0]);
 }
 static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	bdaddr_t bdaddr;
 	baswap(&bdaddr, &hdev->bdaddr);
 	return sprintf(buf, "%s\n", batostr(&bdaddr));
 }
 static ssize_t show_features(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
 				hdev->features[0], hdev->features[1],
 				hdev->features[2], hdev->features[3],
 				hdev->features[4], hdev->features[5],
 				hdev->features[6], hdev->features[7]);
 }
 static ssize_t show_manufacturer(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", hdev->manufacturer);
 }
 static ssize_t show_hci_version(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", hdev->hci_ver);
 }
 static ssize_t show_hci_revision(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", hdev->hci_rev);
 }
 static ssize_t show_idle_timeout(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", hdev->idle_timeout);
 }
 static ssize_t store_idle_timeout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	char *ptr;
 	__u32 val;
 	val = simple_strtoul(buf, &ptr, 10);
 	if (ptr == buf)
 		return -EINVAL;
 	if (val != 0 && (val < 500 || val > 3600000))
 		return -EINVAL;
 	hdev->idle_timeout = val;
 	return count;
 }
 static ssize_t show_sniff_max_interval(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
 }
 static ssize_t store_sniff_max_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	char *ptr;
 	__u16 val;
 	val = simple_strtoul(buf, &ptr, 10);
 	if (ptr == buf)
 		return -EINVAL;
 	if (val < 0x0002 || val > 0xFFFE || val % 2)
 		return -EINVAL;
 	if (val < hdev->sniff_min_interval)
 		return -EINVAL;
 	hdev->sniff_max_interval = val;
 	return count;
 }
 static ssize_t show_sniff_min_interval(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
 }
 static ssize_t store_sniff_min_interval(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct hci_dev *hdev = dev_get_drvdata(dev);
 	char *ptr;
 	__u16 val;
 	val = simple_strtoul(buf, &ptr, 10);
 	if (ptr == buf)
 		return -EINVAL;
 	if (val < 0x0002 || val > 0xFFFE || val % 2)
 		return -EINVAL;
 	if (val > hdev->sniff_max_interval)
 		return -EINVAL;
 	hdev->sniff_min_interval = val;
 	return count;
 }
 static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
+static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
 static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
 static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
 static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
 static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
 static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
 static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
 				show_idle_timeout, store_idle_timeout);
 static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
 				show_sniff_max_interval, store_sniff_max_interval);
 static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
 				show_sniff_min_interval, store_sniff_min_interval);
 static struct attribute *bt_host_attrs[] = {
 	&dev_attr_bus.attr,
+	&dev_attr_type.attr,
 	&dev_attr_name.attr,
 	&dev_attr_class.attr,
 	&dev_attr_address.attr,
 	&dev_attr_features.attr,
 	&dev_attr_manufacturer.attr,
 	&dev_attr_hci_version.attr,
 	&dev_attr_hci_revision.attr,
 	&dev_attr_idle_timeout.attr,
 	&dev_attr_sniff_max_interval.attr,
 	&dev_attr_sniff_min_interval.attr,
 	NULL
 };
 static struct attribute_group bt_host_group = {
 	.attrs = bt_host_attrs,
 };
 static const struct attribute_group *bt_host_groups[] = {
 	&bt_host_group,
 	NULL
 };
 static void bt_host_release(struct device *dev)
 {
 	void *data = dev_get_drvdata(dev);
 	kfree(data);
 }
 static struct device_type bt_host = {
 	.name    = "host",
 	.groups  = bt_host_groups,
 	.release = bt_host_release,
 };
 static int inquiry_cache_open(struct inode *inode, struct file *file)
 {
 	file->private_data = inode->i_private;
 	return 0;
 }
 static ssize_t inquiry_cache_read(struct file *file, char __user *userbuf,
 						size_t count, loff_t *ppos)
 {
 	struct hci_dev *hdev = file->private_data;
 	struct inquiry_cache *cache = &hdev->inq_cache;
 	struct inquiry_entry *e;
 	char buf[4096];
 	int n = 0;
 	hci_dev_lock_bh(hdev);
 	for (e = cache->list; e; e = e->next) {
 		struct inquiry_data *data = &e->data;
 		bdaddr_t bdaddr;
 		baswap(&bdaddr, &data->bdaddr);
 		n += sprintf(buf + n, "%s %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
 				batostr(&bdaddr),
 				data->pscan_rep_mode, data->pscan_period_mode,
 				data->pscan_mode, data->dev_class[2],
 				data->dev_class[1], data->dev_class[0],
 				__le16_to_cpu(data->clock_offset),
 				data->rssi, data->ssp_mode, e->timestamp);
 	}
 	hci_dev_unlock_bh(hdev);
 	return simple_read_from_buffer(userbuf, count, ppos, buf, n);
 }
 static const struct file_operations inquiry_cache_fops = {
 	.open = inquiry_cache_open,
 	.read = inquiry_cache_read,
 };
 int hci_register_sysfs(struct hci_dev *hdev)
 {
 	struct device *dev = &hdev->dev;
 	int err;
 	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 	dev->type = &bt_host;
 	dev->class = bt_class;
 	dev->parent = hdev->parent;
 	dev_set_name(dev, "%s", hdev->name);
 	dev_set_drvdata(dev, hdev);
 	err = device_register(dev);
 	if (err < 0)
 		return err;
 	if (!bt_debugfs)
 		return 0;
 	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
 	if (!hdev->debugfs)
 		return 0;
 	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
 						hdev, &inquiry_cache_fops);
 	return 0;
 }
 void hci_unregister_sysfs(struct hci_dev *hdev)
 {
 	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 	debugfs_remove_recursive(hdev->debugfs);
 	device_del(&hdev->dev);
 }
 int __init bt_sysfs_init(void)
 {
 	bt_workq = create_singlethread_workqueue("bluetooth");
 	if (!bt_workq)
 		return -ENOMEM;
 	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
 	bt_class = class_create(THIS_MODULE, "bluetooth");
 	if (IS_ERR(bt_class)) {
 		destroy_workqueue(bt_workq);
 		return PTR_ERR(bt_class);
 	}
 	return 0;
 }
 void bt_sysfs_cleanup(void)
 {
 	class_destroy(bt_class);
 	debugfs_remove_recursive(bt_debugfs);
 	destroy_workqueue(bt_workq);
 }