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tmk_keyboard/protocol/usb_hid/USB_Host_Shield_2.0/BTD.h
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2015-05-13 11:13:10 +09:00

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/* Copyright (C) 2012 Kristian Lauszus, TKJ Electronics. All rights reserved.
This software may be distributed and modified under the terms of the GNU
General Public License version 2 (GPL2) as published by the Free Software
Foundation and appearing in the file GPL2.TXT included in the packaging of
this file. Please note that GPL2 Section 2[b] requires that all works based
on this software must also be made publicly available under the terms of
the GPL2 ("Copyleft").
Contact information
-------------------
Kristian Lauszus, TKJ Electronics
Web : http://www.tkjelectronics.com
e-mail : kristianl@tkjelectronics.com
*/
#ifndef _btd_h_
#define _btd_h_
#include "Usb.h"
#include "hid.h"
//PID and VID of the Sony PS3 devices
#define PS3_VID 0x054C // Sony Corporation
#define PS3_PID 0x0268 // PS3 Controller DualShock 3
#define PS3NAVIGATION_PID 0x042F // Navigation controller
#define PS3MOVE_PID 0x03D5 // Motion controller
#define IOGEAR_GBU521_VID 0x0A5C // The IOGEAR GBU521 dongle does not presents itself correctly, so we have to check for it manually
#define IOGEAR_GBU521_PID 0x21E8
/* Bluetooth dongle data taken from descriptors */
#define BULK_MAXPKTSIZE 64 // Max size for ACL data
// Used in control endpoint header for HCI Commands
#define bmREQ_HCI_OUT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE
/* Bluetooth HCI states for hci_task() */
#define HCI_INIT_STATE 0
#define HCI_RESET_STATE 1
#define HCI_CLASS_STATE 2
#define HCI_BDADDR_STATE 3
#define HCI_LOCAL_VERSION_STATE 4
#define HCI_SET_NAME_STATE 5
#define HCI_CHECK_DEVICE_SERVICE 6
#define HCI_INQUIRY_STATE 7 // These three states are only used if it should pair and connect to a device
#define HCI_CONNECT_DEVICE_STATE 8
#define HCI_CONNECTED_DEVICE_STATE 9
#define HCI_SCANNING_STATE 10
#define HCI_CONNECT_IN_STATE 11
#define HCI_REMOTE_NAME_STATE 12
#define HCI_CONNECTED_STATE 13
#define HCI_DISABLE_SCAN_STATE 14
#define HCI_DONE_STATE 15
#define HCI_DISCONNECT_STATE 16
/* HCI event flags*/
#define HCI_FLAG_CMD_COMPLETE (1UL << 0)
#define HCI_FLAG_CONNECT_COMPLETE (1UL << 1)
#define HCI_FLAG_DISCONNECT_COMPLETE (1UL << 2)
#define HCI_FLAG_REMOTE_NAME_COMPLETE (1UL << 3)
#define HCI_FLAG_INCOMING_REQUEST (1UL << 4)
#define HCI_FLAG_READ_BDADDR (1UL << 5)
#define HCI_FLAG_READ_VERSION (1UL << 6)
#define HCI_FLAG_DEVICE_FOUND (1UL << 7)
#define HCI_FLAG_CONNECT_EVENT (1UL << 8)
/* Macros for HCI event flag tests */
#define hci_check_flag(flag) (hci_event_flag & (flag))
#define hci_set_flag(flag) (hci_event_flag |= (flag))
#define hci_clear_flag(flag) (hci_event_flag &= ~(flag))
/* HCI Events managed */
#define EV_INQUIRY_COMPLETE 0x01
#define EV_INQUIRY_RESULT 0x02
#define EV_CONNECT_COMPLETE 0x03
#define EV_INCOMING_CONNECT 0x04
#define EV_DISCONNECT_COMPLETE 0x05
#define EV_AUTHENTICATION_COMPLETE 0x06
#define EV_REMOTE_NAME_COMPLETE 0x07
#define EV_ENCRYPTION_CHANGE 0x08
#define EV_CHANGE_CONNECTION_LINK 0x09
#define EV_ROLE_CHANGED 0x12
#define EV_NUM_COMPLETE_PKT 0x13
#define EV_PIN_CODE_REQUEST 0x16
#define EV_LINK_KEY_REQUEST 0x17
#define EV_LINK_KEY_NOTIFICATION 0x18
#define EV_DATA_BUFFER_OVERFLOW 0x1A
#define EV_MAX_SLOTS_CHANGE 0x1B
#define EV_READ_REMOTE_VERSION_INFORMATION_COMPLETE 0x0C
#define EV_QOS_SETUP_COMPLETE 0x0D
#define EV_COMMAND_COMPLETE 0x0E
#define EV_COMMAND_STATUS 0x0F
#define EV_LOOPBACK_COMMAND 0x19
#define EV_PAGE_SCAN_REP_MODE 0x20
/* Bluetooth states for the different Bluetooth drivers */
#define L2CAP_WAIT 0
#define L2CAP_DONE 1
/* Used for HID Control channel */
#define L2CAP_CONTROL_CONNECT_REQUEST 2
#define L2CAP_CONTROL_CONFIG_REQUEST 3
#define L2CAP_CONTROL_SUCCESS 4
#define L2CAP_CONTROL_DISCONNECT 5
/* Used for HID Interrupt channel */
#define L2CAP_INTERRUPT_SETUP 6
#define L2CAP_INTERRUPT_CONNECT_REQUEST 7
#define L2CAP_INTERRUPT_CONFIG_REQUEST 8
#define L2CAP_INTERRUPT_DISCONNECT 9
/* Used for SDP channel */
#define L2CAP_SDP_WAIT 10
#define L2CAP_SDP_SUCCESS 11
/* Used for RFCOMM channel */
#define L2CAP_RFCOMM_WAIT 12
#define L2CAP_RFCOMM_SUCCESS 13
#define L2CAP_DISCONNECT_RESPONSE 14 // Used for both SDP and RFCOMM channel
/* Bluetooth states used by some drivers */
#define TURN_ON_LED 17
#define PS3_ENABLE_SIXAXIS 18
#define WII_CHECK_MOTION_PLUS_STATE 19
#define WII_CHECK_EXTENSION_STATE 20
#define WII_INIT_MOTION_PLUS_STATE 21
/* L2CAP event flags for HID Control channel */
#define L2CAP_FLAG_CONNECTION_CONTROL_REQUEST (1UL << 0)
#define L2CAP_FLAG_CONFIG_CONTROL_SUCCESS (1UL << 1)
#define L2CAP_FLAG_CONTROL_CONNECTED (1UL << 2)
#define L2CAP_FLAG_DISCONNECT_CONTROL_RESPONSE (1UL << 3)
/* L2CAP event flags for HID Interrupt channel */
#define L2CAP_FLAG_CONNECTION_INTERRUPT_REQUEST (1UL << 4)
#define L2CAP_FLAG_CONFIG_INTERRUPT_SUCCESS (1UL << 5)
#define L2CAP_FLAG_INTERRUPT_CONNECTED (1UL << 6)
#define L2CAP_FLAG_DISCONNECT_INTERRUPT_RESPONSE (1UL << 7)
/* L2CAP event flags for SDP channel */
#define L2CAP_FLAG_CONNECTION_SDP_REQUEST (1UL << 8)
#define L2CAP_FLAG_CONFIG_SDP_SUCCESS (1UL << 9)
#define L2CAP_FLAG_DISCONNECT_SDP_REQUEST (1UL << 10)
/* L2CAP event flags for RFCOMM channel */
#define L2CAP_FLAG_CONNECTION_RFCOMM_REQUEST (1UL << 11)
#define L2CAP_FLAG_CONFIG_RFCOMM_SUCCESS (1UL << 12)
#define L2CAP_FLAG_DISCONNECT_RFCOMM_REQUEST (1UL << 13)
#define L2CAP_FLAG_DISCONNECT_RESPONSE (1UL << 14)
/* Macros for L2CAP event flag tests */
#define l2cap_check_flag(flag) (l2cap_event_flag & (flag))
#define l2cap_set_flag(flag) (l2cap_event_flag |= (flag))
#define l2cap_clear_flag(flag) (l2cap_event_flag &= ~(flag))
/* L2CAP signaling commands */
#define L2CAP_CMD_COMMAND_REJECT 0x01
#define L2CAP_CMD_CONNECTION_REQUEST 0x02
#define L2CAP_CMD_CONNECTION_RESPONSE 0x03
#define L2CAP_CMD_CONFIG_REQUEST 0x04
#define L2CAP_CMD_CONFIG_RESPONSE 0x05
#define L2CAP_CMD_DISCONNECT_REQUEST 0x06
#define L2CAP_CMD_DISCONNECT_RESPONSE 0x07
#define L2CAP_CMD_INFORMATION_REQUEST 0x0A
#define L2CAP_CMD_INFORMATION_RESPONSE 0x0B
// Used For Connection Response - Remember to Include High Byte
#define PENDING 0x01
#define SUCCESSFUL 0x00
/* Bluetooth L2CAP PSM - see http://www.bluetooth.org/Technical/AssignedNumbers/logical_link.htm */
#define SDP_PSM 0x01 // Service Discovery Protocol PSM Value
#define RFCOMM_PSM 0x03 // RFCOMM PSM Value
#define HID_CTRL_PSM 0x11 // HID_Control PSM Value
#define HID_INTR_PSM 0x13 // HID_Interrupt PSM Value
// Used to determine if it is a Bluetooth dongle
#define WI_SUBCLASS_RF 0x01 // RF Controller
#define WI_PROTOCOL_BT 0x01 // Bluetooth Programming Interface
#define BTD_MAX_ENDPOINTS 4
#define BTD_NUM_SERVICES 4 // Max number of Bluetooth services - if you need more than 4 simply increase this number
#define PAIR 1
class BluetoothService;
/**
* The Bluetooth Dongle class will take care of all the USB communication
* and then pass the data to the BluetoothService classes.
*/
class BTD : public USBDeviceConfig, public UsbConfigXtracter {
public:
/**
* Constructor for the BTD class.
* @param p Pointer to USB class instance.
*/
BTD(USB *p);
/** @name USBDeviceConfig implementation */
/**
* Address assignment and basic initialization is done here.
* @param parent Hub number.
* @param port Port number on the hub.
* @param lowspeed Speed of the device.
* @return 0 on success.
*/
uint8_t ConfigureDevice(uint8_t parent, uint8_t port, bool lowspeed);
/**
* Initialize the Bluetooth dongle.
* @param parent Hub number.
* @param port Port number on the hub.
* @param lowspeed Speed of the device.
* @return 0 on success.
*/
uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
/**
* Release the USB device.
* @return 0 on success.
*/
uint8_t Release();
/**
* Poll the USB Input endpoints and run the state machines.
* @return 0 on success.
*/
uint8_t Poll();
/**
* Get the device address.
* @return The device address.
*/
virtual uint8_t GetAddress() {
return bAddress;
};
/**
* Used to check if the dongle has been initialized.
* @return True if it's ready.
*/
virtual bool isReady() {
return bPollEnable;
};
/**
* Used by the USB core to check what this driver support.
* @param klass The device's USB class.
* @return Returns true if the device's USB class matches this driver.
*/
virtual bool DEVCLASSOK(uint8_t klass) {
return (klass == USB_CLASS_WIRELESS_CTRL);
};
/**
* Used by the USB core to check what this driver support.
* Used to set the Bluetooth address into the PS3 controllers.
* @param vid The device's VID.
* @param pid The device's PID.
* @return Returns true if the device's VID and PID matches this driver.
*/
virtual bool VIDPIDOK(uint16_t vid, uint16_t pid) {
if(vid == IOGEAR_GBU521_VID && pid == IOGEAR_GBU521_PID)
return true;
if(my_bdaddr[0] != 0x00 || my_bdaddr[1] != 0x00 || my_bdaddr[2] != 0x00 || my_bdaddr[3] != 0x00 || my_bdaddr[4] != 0x00 || my_bdaddr[5] != 0x00) { // Check if Bluetooth address is set
if(vid == PS3_VID && (pid == PS3_PID || pid == PS3NAVIGATION_PID || pid == PS3MOVE_PID))
return true;
}
return false;
};
/**@}*/
/** @name UsbConfigXtracter implementation */
/**
* UsbConfigXtracter implementation, used to extract endpoint information.
* @param conf Configuration value.
* @param iface Interface number.
* @param alt Alternate setting.
* @param proto Interface Protocol.
* @param ep Endpoint Descriptor.
*/
void EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *ep);
/**@}*/
/** Disconnects both the L2CAP Channel and the HCI Connection for all Bluetooth services. */
void disconnect();
/**
* Register Bluetooth dongle members/services.
* @param pService Pointer to BluetoothService class instance.
* @return The service ID on success or -1 on fail.
*/
int8_t registerBluetoothService(BluetoothService *pService) {
for(uint8_t i = 0; i < BTD_NUM_SERVICES; i++) {
if(!btService[i]) {
btService[i] = pService;
return i; // Return ID
}
}
return -1; // Error registering BluetoothService
};
/** @name HCI Commands */
/**
* Used to send a HCI Command.
* @param data Data to send.
* @param nbytes Number of bytes to send.
*/
void HCI_Command(uint8_t* data, uint16_t nbytes);
/** Reset the Bluetooth dongle. */
void hci_reset();
/** Read the Bluetooth address of the dongle. */
void hci_read_bdaddr();
/** Read the HCI Version of the Bluetooth dongle. */
void hci_read_local_version_information();
/**
* Set the local name of the Bluetooth dongle.
* @param name Desired name.
*/
void hci_set_local_name(const char* name);
/** Enable visibility to other Bluetooth devices. */
void hci_write_scan_enable();
/** Disable visibility to other Bluetooth devices. */
void hci_write_scan_disable();
/** Read the remote devices name. */
void hci_remote_name();
/** Accept the connection with the Bluetooth device. */
void hci_accept_connection();
/**
* Disconnect the HCI connection.
* @param handle The HCI Handle for the connection.
*/
void hci_disconnect(uint16_t handle);
/**
* Respond with the pin for the connection.
* The pin is automatically set for the Wii library,
* but can be customized for the SPP library.
*/
void hci_pin_code_request_reply();
/** Respons when no pin was set. */
void hci_pin_code_negative_request_reply();
/**
* Command is used to reply to a Link Key Request event from the BR/EDR Controller
* if the Host does not have a stored Link Key for the connection.
*/
void hci_link_key_request_negative_reply();
/** Used to try to authenticate with the remote device. */
void hci_authentication_request();
/** Start a HCI inquiry. */
void hci_inquiry();
/** Cancel a HCI inquiry. */
void hci_inquiry_cancel();
/** Connect to last device communicated with. */
void hci_connect();
/**
* Connect to device.
* @param bdaddr Bluetooth address of the device.
*/
void hci_connect(uint8_t *bdaddr);
/** Used to a set the class of the device. */
void hci_write_class_of_device();
/**@}*/
/** @name L2CAP Commands */
/**
* Used to send L2CAP Commands.
* @param handle HCI Handle.
* @param data Data to send.
* @param nbytes Number of bytes to send.
* @param channelLow,channelHigh Low and high byte of channel to send to.
* If argument is omitted then the Standard L2CAP header: Channel ID (0x01) for ACL-U will be used.
*/
void L2CAP_Command(uint16_t handle, uint8_t* data, uint8_t nbytes, uint8_t channelLow = 0x01, uint8_t channelHigh = 0x00);
/**
* L2CAP Connection Request.
* @param handle HCI handle.
* @param rxid Identifier.
* @param scid Source Channel Identifier.
* @param psm Protocol/Service Multiplexer - see: https://www.bluetooth.org/Technical/AssignedNumbers/logical_link.htm.
*/
void l2cap_connection_request(uint16_t handle, uint8_t rxid, uint8_t* scid, uint16_t psm);
/**
* L2CAP Connection Response.
* @param handle HCI handle.
* @param rxid Identifier.
* @param dcid Destination Channel Identifier.
* @param scid Source Channel Identifier.
* @param result Result - First send ::PENDING and then ::SUCCESSFUL.
*/
void l2cap_connection_response(uint16_t handle, uint8_t rxid, uint8_t* dcid, uint8_t* scid, uint8_t result);
/**
* L2CAP Config Request.
* @param handle HCI Handle.
* @param rxid Identifier.
* @param dcid Destination Channel Identifier.
*/
void l2cap_config_request(uint16_t handle, uint8_t rxid, uint8_t* dcid);
/**
* L2CAP Config Response.
* @param handle HCI Handle.
* @param rxid Identifier.
* @param scid Source Channel Identifier.
*/
void l2cap_config_response(uint16_t handle, uint8_t rxid, uint8_t* scid);
/**
* L2CAP Disconnection Request.
* @param handle HCI Handle.
* @param rxid Identifier.
* @param dcid Device Channel Identifier.
* @param scid Source Channel Identifier.
*/
void l2cap_disconnection_request(uint16_t handle, uint8_t rxid, uint8_t* dcid, uint8_t* scid);
/**
* L2CAP Disconnection Response.
* @param handle HCI Handle.
* @param rxid Identifier.
* @param dcid Device Channel Identifier.
* @param scid Source Channel Identifier.
*/
void l2cap_disconnection_response(uint16_t handle, uint8_t rxid, uint8_t* dcid, uint8_t* scid);
/**
* L2CAP Information Response.
* @param handle HCI Handle.
* @param rxid Identifier.
* @param infoTypeLow,infoTypeHigh Infotype.
*/
void l2cap_information_response(uint16_t handle, uint8_t rxid, uint8_t infoTypeLow, uint8_t infoTypeHigh);
/**@}*/
/** Use this to see if it is waiting for a incoming connection. */
bool watingForConnection;
/** This is used by the service to know when to store the device information. */
bool l2capConnectionClaimed;
/** This is used by the SPP library to claim the current SDP incoming request. */
bool sdpConnectionClaimed;
/** This is used by the SPP library to claim the current RFCOMM incoming request. */
bool rfcommConnectionClaimed;
/** The name you wish to make the dongle show up as. It is set automatically by the SPP library. */
const char* btdName;
/** The pin you wish to make the dongle use for authentication. It is set automatically by the SPP and BTHID library. */
const char* btdPin;
/** The bluetooth dongles Bluetooth address. */
uint8_t my_bdaddr[6];
/** HCI handle for the last connection. */
uint16_t hci_handle;
/** Last incoming devices Bluetooth address. */
uint8_t disc_bdaddr[6];
/** First 30 chars of last remote name. */
char remote_name[30];
/**
* The supported HCI Version read from the Bluetooth dongle.
* Used by the PS3BT library to check the HCI Version of the Bluetooth dongle,
* it should be at least 3 to work properly with the library.
*/
uint8_t hci_version;
/** Call this function to pair with a Wiimote */
void pairWithWiimote() {
pairWithWii = true;
hci_state = HCI_CHECK_DEVICE_SERVICE;
};
/** Used to only send the ACL data to the Wiimote. */
bool connectToWii;
/** True if a Wiimote is connecting. */
bool incomingWii;
/** True when it should pair with a Wiimote. */
bool pairWithWii;
/** True if it's the new Wiimote with the Motion Plus Inside or a Wii U Pro Controller. */
bool motionPlusInside;
/** True if it's a Wii U Pro Controller. */
bool wiiUProController;
/** Call this function to pair with a Wiimote */
void pairWithHID() {
pairWithHIDDevice = true;
hci_state = HCI_CHECK_DEVICE_SERVICE;
};
/** Used to only send the ACL data to the Wiimote. */
bool connectToHIDDevice;
/** True if a Wiimote is connecting. */
bool incomingHIDDevice;
/** True when it should pair with a device like a mouse or keyboard. */
bool pairWithHIDDevice;
/**
* Read the poll interval taken from the endpoint descriptors.
* @return The poll interval in ms.
*/
uint8_t readPollInterval() {
return pollInterval;
};
protected:
/** Pointer to USB class instance. */
USB *pUsb;
/** Device address. */
uint8_t bAddress;
/** Endpoint info structure. */
EpInfo epInfo[BTD_MAX_ENDPOINTS];
/** Configuration number. */
uint8_t bConfNum;
/** Total number of endpoints in the configuration. */
uint8_t bNumEP;
/** Next poll time based on poll interval taken from the USB descriptor. */
uint32_t qNextPollTime;
/** Bluetooth dongle control endpoint. */
static const uint8_t BTD_CONTROL_PIPE;
/** HCI event endpoint index. */
static const uint8_t BTD_EVENT_PIPE;
/** ACL In endpoint index. */
static const uint8_t BTD_DATAIN_PIPE;
/** ACL Out endpoint index. */
static const uint8_t BTD_DATAOUT_PIPE;
/**
* Used to print the USB Endpoint Descriptor.
* @param ep_ptr Pointer to USB Endpoint Descriptor.
*/
void PrintEndpointDescriptor(const USB_ENDPOINT_DESCRIPTOR* ep_ptr);
private:
void Initialize(); // Set all variables, endpoint structs etc. to default values
BluetoothService *btService[BTD_NUM_SERVICES];
uint16_t PID, VID; // PID and VID of device connected
uint8_t pollInterval;
bool bPollEnable;
bool pairWiiUsingSync; // True if paring was done using the Wii SYNC button.
bool checkRemoteName; // Used to check remote device's name before connecting.
bool incomingPS4; // True if a PS4 controller is connecting
uint8_t classOfDevice[3]; // Class of device of last device
/* Variables used by high level HCI task */
uint8_t hci_state; // Current state of Bluetooth HCI connection
uint16_t hci_counter; // Counter used for Bluetooth HCI reset loops
uint16_t hci_num_reset_loops; // This value indicate how many times it should read before trying to reset
uint16_t hci_event_flag; // HCI flags of received Bluetooth events
uint8_t inquiry_counter;
uint8_t hcibuf[BULK_MAXPKTSIZE]; // General purpose buffer for HCI data
uint8_t l2capinbuf[BULK_MAXPKTSIZE]; // General purpose buffer for L2CAP in data
uint8_t l2capoutbuf[14]; // General purpose buffer for L2CAP out data
/* State machines */
void HCI_event_task(); // Poll the HCI event pipe
void HCI_task(); // HCI state machine
void ACL_event_task(); // ACL input pipe
/* Used to set the Bluetooth Address internally to the PS3 Controllers */
void setBdaddr(uint8_t* BDADDR);
void setMoveBdaddr(uint8_t* BDADDR);
};
/** All Bluetooth services should inherit this class. */
class BluetoothService {
public:
BluetoothService(BTD *p) : pBtd(p) {
if(pBtd)
pBtd->registerBluetoothService(this); // Register it as a Bluetooth service
};
/**
* Used to pass acldata to the Bluetooth service.
* @param ACLData Pointer to the incoming acldata.
*/
virtual void ACLData(uint8_t* ACLData) = 0;
/** Used to run the different state machines in the Bluetooth service. */
virtual void Run() = 0;
/** Used to reset the Bluetooth service. */
virtual void Reset() = 0;
/** Used to disconnect both the L2CAP Channel and the HCI Connection for the Bluetooth service. */
virtual void disconnect() = 0;
/**
* Used to call your own function when the device is successfully initialized.
* @param funcOnInit Function to call.
*/
void attachOnInit(void (*funcOnInit)(void)) {
pFuncOnInit = funcOnInit; // TODO: This really belong in a class of it's own as it is repeated several times
};
protected:
/**
* Called when a device is successfully initialized.
* Use attachOnInit(void (*funcOnInit)(void)) to call your own function.
* This is useful for instance if you want to set the LEDs in a specific way.
*/
virtual void onInit() = 0;
/** Used to check if the incoming L2CAP data matches the HCI Handle */
bool checkHciHandle(uint8_t *buf, uint16_t handle) {
return (buf[0] == (handle & 0xFF)) && (buf[1] == ((handle >> 8) | 0x20));
}
/** Pointer to function called in onInit(). */
void (*pFuncOnInit)(void);
/** Pointer to BTD instance. */
BTD *pBtd;
/** The HCI Handle for the connection. */
uint16_t hci_handle;
/** L2CAP flags of received Bluetooth events. */
uint32_t l2cap_event_flag;
/** Identifier for L2CAP commands. */
uint8_t identifier;
};
#endif
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