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USB_Host_Shield_2.0/BTD.h
Kristian Lauszus a3ad5f2cdd Added support for Wiimote
2012-08-21 14:31:11 +02:00

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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 "confdescparser.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
/* 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
// Used in control endpoint header for HID Commands
#define bmREQ_HID_OUT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_INTERFACE
#define HID_REQUEST_SET_REPORT 0x09
/* Bluetooth HCI states for hci_task() */
#define HCI_INIT_STATE 0
#define HCI_RESET_STATE 1
#define HCI_BDADDR_STATE 2
#define HCI_LOCAL_VERSION_STATE 3
#define HCI_SET_NAME_STATE 4
#define HCI_CHECK_WII_SERVICE 5
#define HCI_INQUIRY_STATE 6 // These three states are only used if it should connect to a Wii controller
#define HCI_CONNECT_WII_STATE 7
#define HCI_CONNECTED_WII_STATE 8
#define HCI_SCANNING_STATE 9
#define HCI_CONNECT_IN_STATE 10
#define HCI_REMOTE_NAME_STATE 11
#define HCI_CONNECTED_STATE 12
#define HCI_DISABLE_SCAN_STATE 13
#define HCI_DONE_STATE 14
#define HCI_DISCONNECT_STATE 15
/* HCI event flags*/
#define HCI_FLAG_CMD_COMPLETE 0x01
#define HCI_FLAG_CONN_COMPLETE 0x02
#define HCI_FLAG_DISCONN_COMPLETE 0x04
#define HCI_FLAG_REMOTE_NAME_COMPLETE 0x08
#define HCI_FLAG_INCOMING_REQUEST 0x10
#define HCI_FLAG_READ_BDADDR 0x20
#define HCI_FLAG_READ_VERSION 0x40
#define HCI_FLAG_WII_FOUND 0x80
#define HCI_FLAG_CONNECT_EVENT 0x100
/*Macros for HCI event flag tests */
#define hci_cmd_complete (hci_event_flag & HCI_FLAG_CMD_COMPLETE)
#define hci_connect_complete (hci_event_flag & HCI_FLAG_CONN_COMPLETE)
#define hci_disconnect_complete (hci_event_flag & HCI_FLAG_DISCONN_COMPLETE)
#define hci_remote_name_complete (hci_event_flag & HCI_FLAG_REMOTE_NAME_COMPLETE)
#define hci_incoming_connect_request (hci_event_flag & HCI_FLAG_INCOMING_REQUEST)
#define hci_read_bdaddr_complete (hci_event_flag & HCI_FLAG_READ_BDADDR)
#define hci_read_version_complete (hci_event_flag & HCI_FLAG_READ_VERSION)
#define hci_wii_found (hci_event_flag & HCI_FLAG_WII_FOUND)
#define hci_connect_event (hci_event_flag & HCI_FLAG_CONNECT_EVENT)
/* 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
/* 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_NUMSERVICES 4 // Max number of Bluetooth services
class BluetoothService { // All services should include this class
public:
virtual void ACLData(uint8_t* ACLData); // Used to pass acldata to the services
virtual void Run(); // Used to run the different state machines
virtual void Reset(); // Used to reset the services
virtual void disconnect(); // Used to disconnect both the L2CAP Channel and the HCI Connection
};
class BTD : public USBDeviceConfig, public UsbConfigXtracter {
public:
BTD(USB *p); // Constructor
// USBDeviceConfig implementation
virtual uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed);
virtual uint8_t Release();
virtual uint8_t Poll();
virtual uint8_t GetAddress() { return bAddress; };
virtual bool isReady() { return bPollEnable; };
// UsbConfigXtracter implementation, used to extract endpoint information
virtual void EndpointXtract(uint8_t conf, uint8_t iface, uint8_t alt, uint8_t proto, const USB_ENDPOINT_DESCRIPTOR *ep);
bool watingForConnection; // Use this to see if it is waiting for a incoming connection
void disconnect() { // Used this void to disconnect all services
for (uint8_t i=0; i<BTD_NUMSERVICES; i++)
if (btService[i])
btService[i]->disconnect(); // Disconnect both the L2CAP Channel and the HCI Connection
};
/* Register bluetooth dongle members/services */
int8_t registerServiceClass(BluetoothService *pService) {
for (uint8_t i=0; i<BTD_NUMSERVICES; i++) {
if (!btService[i]) {
btService[i] = pService;
return i; // Return ID
}
}
return -1; // ErrorregisterServiceClass
};
bool l2capConnectionClaimed; // This is used by the service to know when to store the device information
const char* btdName; // These are set by the SPP library
const char* btdPin;
uint8_t my_bdaddr[6]; // The bluetooth dongles Bluetooth address
uint16_t hci_handle; // HCI handle for the last connection
uint8_t disc_bdaddr[6]; // Last incoming devices Bluetooth address
uint8_t remote_name[30]; // First 30 chars of last remote name
uint8_t hci_version;
int8_t wiiServiceID; // Stores the service ID of the Wii service
bool connectToWii; // Used to only send the ACL data to the wiimote
/* HCI Commands */
void HCI_Command(uint8_t* data, uint16_t nbytes);
void hci_reset();
void hci_read_bdaddr();
void hci_read_local_version_information();
void hci_set_local_name(const char* name);
void hci_write_scan_enable();
void hci_remote_name();
void hci_accept_connection();
void hci_write_scan_disable();
void hci_disconnect(uint16_t handle);
void hci_pin_code_request_reply(const char* key);
void hci_pin_code_negative_request_reply();
void hci_link_key_request_negative_reply();
void hci_inquiry();
void hci_inquiry_cancel();
void hci_connect();
/* L2CAP Commands */
void L2CAP_Command(uint16_t handle, uint8_t* data, uint8_t nbytes, uint8_t channelLow = 0x01, uint8_t channelHigh = 0x00); // Standard L2CAP header: Channel ID (0x01) for ACL-U
void l2cap_connection_request(uint16_t handle, uint8_t rxid, uint8_t* scid, uint16_t psm);
void l2cap_connection_response(uint16_t handle, uint8_t rxid, uint8_t* dcid, uint8_t* scid, uint8_t result);
void l2cap_config_request(uint16_t handle, uint8_t rxid, uint8_t* dcid);
void l2cap_config_response(uint16_t handle, uint8_t rxid, uint8_t* scid);
void l2cap_disconnection_request(uint16_t handle, uint8_t rxid, uint8_t* dcid, uint8_t* scid);
void l2cap_disconnection_response(uint16_t handle, uint8_t rxid, uint8_t* dcid, uint8_t* scid);
void l2cap_information_response(uint16_t handle, uint8_t rxid, uint8_t infoTypeLow, uint8_t infoTypeHigh);
protected:
/* Mandatory USB members */
USB *pUsb;
uint8_t bAddress; // Device address
EpInfo epInfo[BTD_MAX_ENDPOINTS]; // Endpoint info structure
uint8_t bConfNum; // Configuration number
uint8_t bNumEP; // Total number of endpoints in the configuration
uint32_t qNextPollTime; // Next poll time
#define BTD_CONTROL_PIPE 0 // Bluetooth dongles control endpoint
static const uint8_t BTD_EVENT_PIPE; // HCI event endpoint index
static const uint8_t BTD_DATAIN_PIPE; // ACL In endpoint index
static const uint8_t BTD_DATAOUT_PIPE; // ACL Out endpoint index
void PrintEndpointDescriptor(const USB_ENDPOINT_DESCRIPTOR* ep_ptr);
private:
BluetoothService* btService[BTD_NUMSERVICES];
bool bPollEnable;
uint8_t pollInterval;
/* 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
uint8_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 hcibuf[BULK_MAXPKTSIZE];//General purpose buffer for hci data
uint8_t l2capinbuf[BULK_MAXPKTSIZE];//General purpose buffer for l2cap in data
uint8_t l2capoutbuf[BULK_MAXPKTSIZE];//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);
};
#endif
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