hci_bcsp.cpp

CSR蓝牙HCI层驱动源码

/****************************************************************************

                Cambridge Silicon Radio Ltd, 2006

                All rights reserved

FILE:           hci_bcsp.cpp

DESCRIPTION:    BCSP implementation

REVISION:       $Revision: #14 $

****************************************************************************/
/*
    Copyright 2007 Smart Wireless Corporatoin, All rights reserved.

    Filename: 

    Description:

    ------------------------------------------------------------------------------
    Revision History:
    Date           Author Name     Change ID         Brief Description
    2007-05-14     liguangyu       WMREQ00000295     resolved the bluetooth power problem
    2007-07-24     Chengfeifei     WMREQ00003012     Align the code and Delete the NV code
    2007-11-28     Chengfeifei     WMREQ0000xxxx     Avoid lightening screen from backlight-off mode
    2007-12-10     Chengfeifei     WMREQ0000xxxx     Modify PSKey configuration 
    ------------------------------------------------------------------------------
*/
#include <windows.h>

#ifdef UNDER_CE
#include <bt_hcip.h>
#include <bt_os.h>
#endif

#include "hci_bcsp.h"
#include "hci_bccmd.h"
#include "hci_sniffer.h"
#include <tchar.h>
#include <stdio.h>
#include "generic_debug_zones.h"
#include <gpio.h>

#include <winuserm.h>
#include <windows.h>
#include <bsp.h>

#ifndef UNDER_CE
#include "hci_driver.h"
#endif

//debug message macro
#define BTDBG    1

//Bluetooth Platform Context structure and function declearation
typedef struct _BTCONTEXT
{
    HANDLE hGPIO;
    DWORD  dwWakeUpSysIntr;
    BOOL   bDriverShutDown;
} BTCONTEXT;

static BTCONTEXT *g_pBTContext = NULL;

VOID BTPowerControl();
VOID BTReset();
BOOL BTInitGpio();
BOOL BTDeinitGpio();
BOOL BTPlatformInit();
BOOL BTPlatformDeinit();
BOOL BTWakeUpEnable();

#define DEBUG_BCSP_ALL          0x000001F0
#define DEBUG_BCSP_INIT         0x00000010
#define DEBUG_BCSP_CTRL         0x00000020
#define DEBUG_BCSP_RUN          0x00000040
#define DEBUG_BCSP_ERROR        0x00000080
#define DEBUG_BCSP_MSG          0x00000100
#define DEBUG_BCSP_SYNC         0x00000200
#define SIZEOFARRAY(a)  (sizeof(a) / sizeof(a[0]))

#ifdef UNDER_CE
#define PACKET_SIZE_R                (512)
#define PACKET_SIZE_W                (512)
#define DEFAULT_WORKER_THREAD_PRIORITY    132
#define DEFAULT_COM_NAME             L"COM2:"
#define SCO_DEFAULT_SAMPLE_SIZE             8
#define SCO_DEFAULT_WRITE_LOW_NUM_PACKETS   2
#define SCO_DEFAULT_WRITE_HIGH_NUM_PACKETS  4
#define SCO_DEFAULT_PACKET_SIZE            51
#endif

static BcspCommunication bcspCommunication(TEXT("HCI"));

static const unsigned short crc_table[256] = {
    0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, 
    0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, 
    0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, 
    0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, 
    0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, 
    0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, 
    0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, 
    0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, 
    0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, 
    0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, 
    0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, 
    0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, 
    0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, 
    0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1, 
    0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, 
    0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, 
    0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, 
    0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, 
    0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, 
    0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, 
    0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, 
    0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, 
    0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134, 
    0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, 
    0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, 
    0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, 
    0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, 
    0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, 
    0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, 
    0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, 
    0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, 
    0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
};

const unsigned char syncPayload[]      = { 0xDA, 0xDC, 0xED, 0xED };
const unsigned char syncRespPayload[]  = { 0xAC, 0xAF, 0xEF, 0xEE };
const unsigned char confPayload[]      = { 0xAD, 0xEF, 0xAC, 0xED };
const unsigned char confRespPayload[]  = { 0xDE, 0xAD, 0xD0, 0xD0 };

DWORD WINAPI BCSPReadThreadExecute(void* value)
{
    return ((BcspCommunication*) value)->ReadExecute();
}

DWORD WINAPI BCSPWriteThreadExecute(void* value)
{
    return ((BcspCommunication*) value)->WriteExecute();
}

#pragma pack(push, 1)
struct BCSPHeader {
    union {
        unsigned char flags;
        struct {
            unsigned char seq : 3;
            unsigned char ack : 3;
            unsigned char crcPresent : 1;
            unsigned char protocolType : 1;
        };
    };
    struct {
        unsigned short protocolID : 4;
        unsigned short payloadLength : 12;
    };
    
    unsigned char checksum;
    unsigned char GetChecksum (void) {
        const unsigned char *pThis = (unsigned char *)this;
        return ~(pThis[0] + pThis[1] + pThis[2]);
    }

    void SetChecksum (void) {
        checksum = GetChecksum();
    }
};
#pragma pack(pop)


BcspCommunication::BcspCommunication(const TCHAR* name):
    name(name), serialPortHandle(INVALID_HANDLE_VALUE), readThread(NULL), writeThread(NULL), 
    packetAvailable(NULL), writePossible(TRUE), shuttingDown(FALSE), terminateEvent(NULL), 
#ifdef STATISTICS
    syncErrors(0), markerErrors(0), overflowErrors(0), inPackets(0), inBytes(0), outPackets(0), outBytes(0), 
    headerCrcErrors(0), packetCrcErrors(0), retransmissions(0), packetSizeErrors(0), retransmissionsTimeout(0),
    receiveReady(0), receiveTotal(0),
#endif
    state(BCSP_STATE_SYNC), useCrc(TRUE), sendSyncResp(FALSE), sendConfResp(FALSE), receivePosition(0), 
    receivePositionAcknowledge(0), transmitPosition(0),    transmitWindow(4), transmitPositionUnacknowledged(0), 
    receiveSequence(0), sendTransmitAck(FALSE), receiveInsertPosition(0), serialPortError(FALSE),
    transmitTimeout(125), transmitInsertPosition(0), writePacketEvent(NULL), transmitHandle(NULL), 
    inSyncEvent(NULL), numberOfSyncs(40),     bccmdBuffer(NULL), bccmdSize(0), bccmdEvent(NULL),
    serialBufferSize(4096), serialTimeoutConstant(5), sniffMode(0),
    serialIntervalTimeout(0xFFFFFFFF)
{
#ifdef BCSP_TEST_MODE
    enableTestMode = FALSE;
    ZeroMemory(&properbility, sizeof(properbility));
#endif
    if (!name)
    {
        this->name = TEXT("");
    }

    ZeroMemory(&transmitQueue, sizeof(transmitQueue));
    ZeroMemory(&receiveQueue, sizeof(receiveQueue));
    ZeroMemory(&incomingSCOData, sizeof(incomingSCOData));
    ZeroMemory(&outgoingSCOData, sizeof(outgoingSCOData));
    InitializeCriticalSection(&lock);
}

// Global variables
static const GUID DEVICE_IFC_GPIO_GUID;

BOOL BTWakeUpEnable(BOOL fEnable)
{
    RETAILMSG(BTDBG,(L"[BT] BTWakeUpEnable: fEnable = %d\r\n",fEnable));
    if(fEnable)
    {
        g_pBTContext->bDriverShutDown = FALSE;
        g_pBTContext->dwWakeUpSysIntr = SYSINTR_BTWAKEUP;
        if(!KernelIoControl(
                    IOCTL_HAL_ENABLE_WAKE, 
                    &g_pBTContext->dwWakeUpSysIntr, 
                    sizeof(g_pBTContext->dwWakeUpSysIntr), 
                    NULL, 0, NULL))
        {
            RETAILMSG(BTDBG,(L"[BT] ERROR: BTWakeUpEnable: Failed Enable BT wakeup\r\n"));
            return FALSE;
        }
    }
    else //Disable Wakeup
    {
        if( g_pBTContext->dwWakeUpSysIntr != SYSINTR_UNDEFINED )
        {
            KernelIoControl(
                    IOCTL_HAL_DISABLE_WAKE, 
                    &g_pBTContext->dwWakeUpSysIntr, 
                    sizeof(g_pBTContext->dwWakeUpSysIntr), 
                    NULL, 0, NULL);
        }
        g_pBTContext->bDriverShutDown=TRUE;
    }
    return TRUE;
}

// platfrom dependent GPIO operation functions
BOOL BTInitGpio(void)
{
    RETAILMSG(BTDBG,( L"[BT] BTInitGpio: ++++++\r\n"));
    if(g_pBTContext->hGPIO)
    {
        RETAILMSG(BTDBG,( L"[BT] BTInitGpio: GPIO has already been open \n\r"));
        return FALSE;
    }
    
    g_pBTContext->hGPIO = GPIOOpen();
    if(!g_pBTContext->hGPIO)
    {
        RETAILMSG(BTDBG,( L"[BT] BTInitGpio: GPIO open failed!\n\r"));
        return FALSE;
    }
    GPIOSetMode(g_pBTContext->hGPIO, GPIO_BT_POWER, GPIO_DIR_OUTPUT);
    GPIOSetMode(g_pBTContext->hGPIO, GPIO_BT_RESET, GPIO_DIR_OUTPUT);
    GPIOSetMode(g_pBTContext->hGPIO, GPIO_BT_WAKEUP, GPIO_INT_BOTHEDGE);
        
    return TRUE;
}

BOOL BTDeinitGpio(void)
{
    RETAILMSG(BTDBG,( L"[BT] BTDeinitGpio: ++++++\r\n"));

    GPIOClose(g_pBTContext->hGPIO);

    return TRUE;
}

VOID BTPowerControl(BOOL fPowerOn)
{
    RETAILMSG(BTDBG,( L"[BT] BTPowerControl: ++++++ PowerOn = %d\r\n",fPowerOn?1:0));
    
    if(fPowerOn)
    {
        GPIOClrBit(g_pBTContext->hGPIO, GPIO_BT_POWER);
        Sleep(10);
        GPIOSetBit(g_pBTContext->hGPIO, GPIO_BT_POWER);
    }
    else
    {
        GPIOClrBit(g_pBTContext->hGPIO, GPIO_BT_POWER);
        GPIOClrBit(g_pBTContext->hGPIO, GPIO_BT_RESET);
    }
}

VOID BTReset(void)
{
    RETAILMSG(BTDBG,( L"[BT] BTReset:  ++++++\r\n"));
    
    GPIOClrBit(g_pBTContext->hGPIO, GPIO_BT_RESET);
    Sleep(5);
    GPIOSetBit(g_pBTContext->hGPIO, GPIO_BT_RESET);
    Sleep(5);

}
BOOL BTPlatformInit()
{
    g_pBTContext = (BTCONTEXT *)LocalAlloc(LPTR, sizeof(BTCONTEXT));
    if(g_pBTContext == NULL)
    {
        RETAILMSG(BTDBG,(L"[BT] ERROR: BTPlatformInit->LocalAlloc failed! Error %d",GetLastError()));
        goto  CleanUp;
    }
    
    if (!BTInitGpio())
        goto  CleanUp;
    
    if (!BTWakeUpEnable(TRUE))
        goto  CleanUp;
        
    BTPowerControl(TRUE);
    BTReset();

    return TRUE;
    
CleanUp:
    BTPlatformDeinit();
    return FALSE;
}

BOOL BTPlatformDeinit()
{
    if(g_pBTContext == NULL)
    {
        RETAILMSG(BTDBG,(L"[BT] ERROR: BTPlatformDeinit: LocalAlloc Released!"));
        return FALSE;
    }

    BTWakeUpEnable(FALSE);
    if(g_pBTContext->hGPIO != NULL)
    {
        BTPowerControl(FALSE);
        BTDeinitGpio();
    }
    
    LocalFree(g_pBTContext);
    g_pBTContext = NULL;
    return TRUE;
}

BcspCommunication::~BcspCommunication()
{
    CloseConnection();
    DeleteCriticalSection(&lock);
}

void BcspCommunication::CalculateCRC(unsigned char* buffer, DWORD size, unsigned short* crc)
{
    unsigned short tempCrc = 0xFFFF;

    do 
    {
        tempCrc = (tempCrc >> 8) ^ crc_table[(tempCrc & 255) ^ *buffer++];
    }
    while (--size);