File content as of revision 0:f6f434d9a03a:

/*
Copyright (c) 2010 Peter Barrett

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

#include <stdio.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#include "Utils.h"
#include "USBHost.h"
#include "hci.h"

#define DEBUG

void printf(const BD_ADDR* addr)
{
    const u8* a = addr->addr;
#ifdef DEBUG
    printf("%02X:%02X:%02X:%02X:%02X:%02X",a[5],a[4],a[3],a[2],a[1],a[0]);
#endif
}
bool controllerAvailable = false;
bool isControllerAvailable(const BD_ADDR* addr)
{
    const u8* a = addr->addr;
    char buffer [50];
    char controller[] = "00:21:47:F6:21:D8";
    sprintf (buffer, "%02X:%02X:%02X:%02X:%02X:%02X",a[5],a[4],a[3],a[2],a[1],a[0]);
    if (strcmp (buffer, controller) == 0) {
        controllerAvailable = true;
        return true ; 
    } else {
        controllerAvailable = false;
        return false;
    }
}


#define MAX_HCL_SIZE 260
#define MAX_ACL_SIZE 400

class HCITransportUSB : public HCITransport
{
    int _device;
    u8* _hciBuffer;
    u8* _aclBuffer;

    public:
    void Open(int device, u8* hciBuffer, u8* aclBuffer)
    {
        _device = device;
        _hciBuffer = hciBuffer;
        _aclBuffer = aclBuffer;
        USBInterruptTransfer(_device,0x81,_hciBuffer,MAX_HCL_SIZE,HciCallback,this);
        USBBulkTransfer(_device,0x82,_aclBuffer,MAX_ACL_SIZE,AclCallback,this);
    }

    static void HciCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
    {
        HCI* t = ((HCITransportUSB*)userData)->_target;
        if (t)
            t->HCIRecv(data,len);
        USBInterruptTransfer(device,0x81,data,MAX_HCL_SIZE,HciCallback,userData);
    }

    static void AclCallback(int device, int endpoint, int status, u8* data, int len, void* userData)
    {
        HCI* t = ((HCITransportUSB*)userData)->_target;
        if (t)
            t->ACLRecv(data,len);
        USBBulkTransfer(device,0x82,data,MAX_ACL_SIZE,AclCallback,userData);
    }

    virtual void HCISend(const u8* data, int len)
    {
        USBControlTransfer(_device,REQUEST_TYPE_CLASS, 0, 0, 0,(u8*)data,len);
    }

    virtual void ACLSend(const u8* data, int len)
    {
        USBBulkTransfer(_device,0x02,(u8*)data,len);
    }
};


#define WII_REMOTE 0x042500

class HIDBluetooth
{
    int _control;   // Sockets for control (out) and interrupt (in)
    int _interrupt;
    int _devClass;
    BD_ADDR _addr;
    u8  _pad[2];    // Struct align
    
public:
    HIDBluetooth() : _control(0),_interrupt(0),_devClass(0) {};

    bool InUse()
    {
        return _control != 0;
    }

    static void OnHidInterrupt(int socket, SocketState state, const u8* data, int len, void* userData)
    {
        HIDBluetooth* t = (HIDBluetooth*)userData;
        if (data)
        {
            if (t->_devClass == WII_REMOTE && data[1] == 0x30)
            {
#ifdef DEBUG
                printf("================wii====================\n");
#endif
                t->Led();
                t->Hid();   // ask for accelerometer
                t->_devClass = 0;
            }

            const u8* d = data;
            switch (d[1])
            {
                case 0x02:
                {
                    int x = (signed char)d[3];
                    int y = (signed char)d[4];
#ifdef DEBUG
                    printf("Mouse %2X dx:%d dy:%d\n",d[2],x,y);
#endif
                }
                break;

                case 0x37: // Accelerometer http://wiki.wiimoteproject.com/Reports
                {
                    int pad = (d[2] & 0x9F) | ((d[3] & 0x9F) << 8);
                    int x = (d[2] & 0x60) >> 5 | d[4] << 2;
                    int y = (d[3] & 0x20) >> 4 | d[5] << 2;
                    int z = (d[3] & 0x40) >> 5 | d[6] << 2;
#ifdef DEBUG 
                    printf("WII %04X %d %d %d\n",pad,x,y,z);
#endif
                }
                break;
                default:
                    printHex(data,len);
            }
        }
    }

    static void OnHidControl(int socket, SocketState state, const u8* data, int len, void* userData)
    {
#ifdef DEBUG
        printf("OnHidControl\n");
#endif
        if (data)
            printHex(data,len);
    }

    void Open(BD_ADDR* bdAddr, inquiry_info* info)
    {    
#ifdef DEBUG
        printf("L2CAPAddr size %d\n",sizeof(L2CAPAddr));
#endif
        _addr = *bdAddr;
        L2CAPAddr sockAddr;
        sockAddr.bdaddr = _addr;
        sockAddr.psm = L2CAP_PSM_HID_INTR;
#ifdef DEBUG        
        printf("Socket_Open size %d\n",sizeof(L2CAPAddr));
#endif
        _interrupt = Socket_Open(SOCKET_L2CAP,&sockAddr.hdr,OnHidInterrupt,this);
        sockAddr.psm = L2CAP_PSM_HID_CNTL;
        _control = Socket_Open(SOCKET_L2CAP,&sockAddr.hdr,OnHidControl,this);

#ifdef DEBUG
        printfBytes("OPEN DEVICE CLASS",info->dev_class,3);
#endif
        _devClass = (info->dev_class[0] << 16) | (info->dev_class[1] << 8) | info->dev_class[2];
    }

    void Close()
    {
        if (_control)
            Socket_Close(_control);
        if (_interrupt)
            Socket_Close(_interrupt);
       _control = _interrupt = 0;
    }

    void Led(int id = 0x10)
    {
        u8 led[3] = {0x52, 0x11, id};
        if (_control)
            Socket_Send(_control,led,3);
    }

    void Hid(int report = 0x37)
    {
        u8 hid[4] = { 0x52, 0x12, 0x00, report };
        if (_control != -1)
            Socket_Send(_control,hid,4);
    }
};


HCI* gHCI = 0;

#define MAX_HID_DEVICES 8

int GetConsoleChar();
class ShellApp
{
    char _line[64];
    HIDBluetooth    _hids[MAX_HID_DEVICES];

public:
    void Ready()
    {
#ifdef DEBUG
    printf("HIDBluetooth %d\n",sizeof(HIDBluetooth));
#endif
         memset(_hids,0,sizeof(_hids));
        Inquiry();

    }

    //  We have connected to a device
    void ConnectionComplete(HCI* hci, connection_info* info)
    {
#ifdef DEBUG
    printf("ConnectionComplete ");
#endif
        BD_ADDR* a = &info->bdaddr;
        printf(a);
        BTDevice* bt = hci->Find(a);
        HIDBluetooth* hid = NewHIDBluetooth();
#ifdef DEBUG
        printf("%08x %08x\n",bt,hid);
#endif
        if (hid)
            hid->Open(a,&bt->_info);
    }

    HIDBluetooth* NewHIDBluetooth()
    {
        for (int i = 0; i < MAX_HID_DEVICES; i++)
            if (!_hids[i].InUse())
                return _hids+i;
        return 0;
    }
    
    void ConnectDevices()
    {
        BTDevice* devs[8];
        int count = gHCI->GetDevices(devs,8);
        for (int i = 0; i < count; i++)
        {
#ifdef DEBUG
            printfBytes("DEVICE CLASS",devs[i]->_info.dev_class,3);
#endif
            if (devs[i]->_handle == 0)
            {
                BD_ADDR* bd = &devs[i]->_info.bdaddr;
                if (isControllerAvailable(bd)){
                    controllerAvailable = true;                    
#ifdef DEBUG
                    printf("Connecting to ");
                    printf(bd);
                    printf("\n");
#endif
                    gHCI->CreateConnection(bd);
                } else {                
                    controllerAvailable = false;
                }
            }
        }
        if (!controllerAvailable) {
#ifdef DEBUG
            printf("Controller not found!\r\n");
#endif
            Inquiry();
        }
    }

    const char* ReadLine()
    {
        int i;
        for (i = 0; i < 255; )
        {
            USBLoop();
            int c = GetConsoleChar();
            if (c == -1)
                continue;
            if (c == '\n' || c == 13)
                break;
            _line[i++] = c;
        }
        _line[i] = 0;
        return _line;
    }

    void Inquiry()
    {
#ifdef DEBUG
        printf("Inquiry..\n");
#endif
        gHCI->Inquiry();
    }

    void List()
    {
        #if 0
#ifdef DEBUG
        printf("%d devices\n",_deviceCount);
#endif
        for (int i = 0; i < _deviceCount; i++)
        {
            printf(&_devices[i].info.bdaddr);
            printf("\n");
        }
        #endif
    }

    void Connect()
    {
        ConnectDevices();
    }

    void Disconnect()
    {
        gHCI->DisconnectAll();
    }

    void CloseMouse()
    {
    }

    void Quit()
    {
        CloseMouse();
    }

    void Run()
    {
        for(;;)
        {
            const char* cmd = ReadLine();
            if (strcmp(cmd,"scan") == 0 || strcmp(cmd,"inquiry") == 0)
                Inquiry();
            else if (strcmp(cmd,"ls") == 0)
                List();
            else if (strcmp(cmd,"connect") == 0)
                Connect();
            else if (strcmp(cmd,"disconnect") == 0)
                Disconnect();
            else if (strcmp(cmd,"q")== 0)
            {
                Quit();
                break;
            } else {
#ifdef DEBUG
                printf("eh? %s\n",cmd);
#endif
            }
        }
    }
};

//  Instance
ShellApp gApp;

static int HciCallback(HCI* hci, HCI_CALLBACK_EVENT evt, const u8* data, int len)
{
    switch (evt)
    {
        case CALLBACK_READY:
#ifdef DEBUG
            printf("CALLBACK_READY\n");
#endif
            gApp.Ready();
            break;

        case CALLBACK_INQUIRY_RESULT:
#ifdef DEBUG
            printf("CALLBACK_INQUIRY_RESULT ");
#endif
            printf((BD_ADDR*)data);                     
            printf("\n");
            break;

        case CALLBACK_INQUIRY_DONE:
#ifdef DEBUG
            printf("CALLBACK_INQUIRY_DONE\n");       
#endif
            gApp.ConnectDevices();          
            break;

        case CALLBACK_REMOTE_NAME:
            {
                BD_ADDR* addr = (BD_ADDR*)data;
                const char* name = (const char*)(data + 6);
#ifdef DEBUG
                printf(addr);
                printf(" % s\n",name);
#endif
            }
            break;

        case CALLBACK_CONNECTION_COMPLETE:
            gApp.ConnectionComplete(hci,(connection_info*)data);
            break;
    };
    return 0;
}

//  these should be placed in the DMA SRAM
typedef struct
{
    u8 _hciBuffer[MAX_HCL_SIZE];
    u8 _aclBuffer[MAX_ACL_SIZE];
} SRAMPlacement;

HCITransportUSB _HCITransportUSB;
HCI _HCI;

u8* USBGetBuffer(u32* len);
int OnBluetoothInsert(int device)
{
#ifdef DEBUG
    printf("Bluetooth inserted of %d\n",device);
#endif
    u32 sramLen;
    u8* sram =  USBGetBuffer(&sramLen);
    sram = (u8*)(((u32)sram + 1023) & ~1023);
    SRAMPlacement* s = (SRAMPlacement*)sram;
    _HCITransportUSB.Open(device,s->_hciBuffer,s->_aclBuffer);
    _HCI.Open(&_HCITransportUSB,HciCallback);
    RegisterSocketHandler(SOCKET_L2CAP,&_HCI);
    gHCI = &_HCI;
    gApp.Inquiry();
    return 0;
}

void TestShell()
{
    USBInit();
    gApp.Run();
}