keybdpdd.cpp

wince.net板级支持包BSP for EP9315

//**********************************************************************
//                                                                      
// Filename: keybdpdd.cpp
//                                                                      
// Description: Contains keyboard pdd routins.
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
// Copyright(c) Cirrus Logic Corporation 2001, All Rights Reserved                       
//                                                                      
//**********************************************************************

// 
//  'C" includes
//

//
// 'C++' includes
//

#include <windows.h>
#include <keybddr.h>
#include <nkintr.h>
#include <oalintr.h>
#include <keybdpdd.h>
#include <kbd.h>

/*=============================================================================
               > DEFINITIONS LOCAL TO THIS FILE <
-----------------------------------------------------------------------------*/

//  Be careful to do pointer arithmetic as chars.
#define REG32(base, id)   (*((PVUINT32)(((char*)(base))+(id))))
#define REG16(base, id)   (*((PVUINT16)(((char*)(base))+(id))))
#define REG8(base, id)    (*((PVUINT8)(((char*)(base))+(id))))

#define USE_REGISTRY 0


static KEY_STATE_FLAGS  v_KeyStateToggled;

typedef volatile BYTE   *PVBYTE;
typedef volatile DWORD  *PVDWORD;
typedef volatile UINT32 *PVUINT32;
typedef volatile UINT16 *PVUINT16;


//
// Debug zones.
//
#define ZONE_INIT       DEBUGZONE(0)
#define ZONE_WARN       DEBUGZONE(14)
#define ZONE_ERROR      DEBUGZONE(15)

extern unsigned long gpKeyMap[8][8];



/*=============================================================================
           > PUBLIC DEFINITIONS INTENTED FOR USE BY THE MDD LAYER ONLY<
-----------------------------------------------------------------------------*/
const DWORD gIntrKeyboard = SYSINTR_KEYBOARD;



//****************************************************************************
// KeybdPowerOn
//****************************************************************************
// Power on the keyboard.
// 
//
static void KeybdPowerOn( void )
{
    DEBUGMSG(ZONE_INIT,(TEXT("KeybdPowerOn")));

    GKBD_Enable(TRUE);
    //KBD_IRQ_ON(g_pIrqBase);

    return;
}

//****************************************************************************
// KeybdPowerOff
//****************************************************************************
// Power off the keyboard
// 
//
static void KeybdPowerOff()
{
    DEBUGMSG(ZONE_INIT,(TEXT("KeybdPowerOff")));

    GKBD_Enable(FALSE);
    //KBD_IRQ_OFF(g_pIrqBase);

    return;
}

//****************************************************************************
// KeybdPdd_PowerHandler
//****************************************************************************
//  @comm This routine runs in kernel context and assumes that interrupts are
//  disabled since it monkeys directly with registers.  It may not make any
//  system calls or cause a reschedule in any way.  You can read and write to
//  your own memory and that is about it.  If you put any subroutines inside
//  here, they must also follow this restriction.
// 
void WINAPI KeybdPdd_PowerHandler
(
    BOOL    bOff            // @parm TRUE, the system is powering off; FALSE, the system is powering up.
)
{
    if (bOff) 
        KeybdPowerOff();
    else 
        KeybdPowerOn();

    return;
}


//****************************************************************************
// KeybdPdd_InitializeDriver
//****************************************************************************
// On entry from the model device driver, the keyboard hardware is
// initialized.
// 
//
BOOL WINAPI 
KeybdPdd_InitializeDriver
(
    PFN_KEYBD_EVENT_CALLBACK    pfnKeybdEventCallback   // @parm The callback into the input system.
)
{
    TCHAR szText[64];

    DEBUGMSG(ZONE_INIT,(TEXT("KeybdPdd_InitializeDriver")));

    (*pfnKeybdEventCallback)(KEYBD_DEVICE_CONNECT,0);

    KeybdPowerOn();

    GKBD_SetDebounce(0xfc);
    GKBD_SetPreScale(0xfa);

#if 0
    DEBUGMSG(ZONE_WARN,(TEXT("----------- REGISTER DUMP AFTER ----------------")));

    wsprintf(szText,TEXT(" STARTING ADDRESS VIRTUAL: 0x%08x"),(unsigned long)pReg);
    DEBUGMSG(ZONE_WARN,(szText));

    wsprintf(szText,TEXT("STARTING ADDRESS PHYSICAL: 0x%08x"),(unsigned long)KBD_BASE);
    DEBUGMSG(ZONE_WARN,(szText));

    wsprintf(szText,TEXT(" SCANINIT KEY Base + 0x00: 0x%08x"),(unsigned long)*pReg);
    DEBUGMSG(ZONE_WARN,(szText));
    pReg++;

    wsprintf(szText,TEXT("     DIAG KEY Base + 0x04: 0x%08x"),(unsigned long)*pReg);
    DEBUGMSG(ZONE_WARN,(szText));
    pReg++;

    wsprintf(szText,TEXT("  KEY_REG KEY Base + 0x08: 0x%08x"),(unsigned long)*pReg);
    DEBUGMSG(ZONE_WARN,(szText));
    pReg++;

    wsprintf(szText,TEXT("  KEY_TCR KEY Base + 0x10: 0x%08x"),(unsigned long)*pReg);
    DEBUGMSG(ZONE_WARN,(szText));
    pReg++;

    wsprintf(szText,TEXT(" KEY_TISR KEY Base + 0x14: 0x%08x"),(unsigned long)*pReg);
    DEBUGMSG(ZONE_WARN,(szText));
    pReg++;
    
    wsprintf(szText,TEXT(" KEY_TOCR KEY Base + 0x18: 0x%08x"),(unsigned long)*pReg);
    DEBUGMSG(ZONE_WARN,(szText));
    pReg++;
#endif

    GKBD_GetLastR1();
    GKBD_GetLastR2();
    GKBD_GetLastC1();
    GKBD_GetLastC2();

    // initialize the keyboard device
    GKBD_Enable(TRUE);

    return (TRUE);
}


//****************************************************************************
// KeybdPdd_GetEvent
//****************************************************************************
//  Called by the MDD to retrieve keyboard events after SYSINTR_KEYBD is 
//  signalled.
//
INT WINAPI KeybdPdd_GetEvent
(
    UINT32 VirtualKeys[16], //  @parm Buffer to put virtual keys which were detected.
    KEY_STATE_FLAGS KeyEvents[16]       //  @parm Buffer to put key state flags.
)
{
    unsigned char uiPos=0,uiStatus=KeyStateDownFlag;
    TCHAR szText1[64],szText2[64];
    unsigned char uiRow1,uiCol1;
    unsigned char uiRow2,uiCol2;

    GKBD_HandleIrq();

    uiRow2=GKBD_GetLastR2();
    uiCol2=GKBD_GetLastC2();
    uiRow1=GKBD_GetLastR1();
    uiCol1=GKBD_GetLastC1();
    uiStatus=GKBD_GetLastKeyStatus();


    ASSERT(uiRow1 && uiCol1 );
    VirtualKeys[uiPos]=gpKeyMap[uiRow1-1][uiCol1-1];

    if (uiStatus)
        KeyEvents[uiPos]=KeyStateDownFlag;
    else
        KeyEvents[uiPos]=0;

    // first detect if there was two keys pressed at 
    // the same time
    if (uiRow2>0 && uiCol2>0)
    {
        uiPos++;

        VirtualKeys[uiPos]=gpKeyMap[uiRow2-1][uiCol2-1];

        if (uiStatus)
            KeyEvents[uiPos]=KeyStateDownFlag;
        else
            KeyEvents[uiPos]=0;

        wsprintf(szText2,TEXT(" SECOND KEY: (%d,%d)"),uiRow2,uiCol2);
    }

    // add the last zero position
    uiPos++;
    VirtualKeys[uiPos]=0;
    KeyEvents[uiPos]=0;

    if (GKBD_GetLastKeyStatus())
    {
        wsprintf(szText1,TEXT("  FIRST KEY DOWN: (%d,%d,%d) %s"),uiRow1,
                         uiCol1,gpKeyMap[uiRow1-1][uiCol1-1],szText2);
    }
    else
    {
        wsprintf(szText1,TEXT("  FIRST KEY UP: (%d,%d,%d) %s"),uiRow1,uiCol1,
                 gpKeyMap[uiRow1-1][uiCol1-1],szText2);
    }

    DEBUGMSG(ZONE_WARN,(szText1));

    //KBD_IRQ_ON(g_pIrqBase);

    return (uiPos);
}


//****************************************************************************
// KeybdPdd_ToggleKeyNotification
//****************************************************************************
// Called when keys are toggled on a keyboard.
// 
//
void WINAPI KeybdPdd_ToggleKeyNotification
(
    KEY_STATE_FLAGS KeyStateFlags
)
{
/*
    v_KeyStateToggled = KeyStateFlags;
*/
    return;
}


//****************************************************************************
// KeybdPdd_KeyStateToggled
//****************************************************************************
// Informs Windows that a key has been toggled.
// 
//
KEY_STATE_FLAGS WINAPI KeybdPdd_KeyStateToggled(void)
{
    return v_KeyStateToggled;
}

//****************************************************************************
// KeybdPdd_DllEntry
//****************************************************************************
// Called by the MDD on Dll state changes.
// 
//
BOOL  WINAPI KeybdPdd_DllEntry
(
    HANDLE hinstDLL,        // @parm Standard Dll entry arg.
    DWORD Op,               // @parm Standard Dll entry arg.
    LPVOID lpvReserved      // @parm Standard Dll entry arg.
)
{
    //
    //REVIEW shouldn't allow more than one attachment.
    //
    if ( Op == DLL_PROCESS_ATTACH ) 
    {
        DEBUGREGISTER((HINSTANCE)hinstDLL);
        //dpCurSettings.ulZoneMask = ZONE_INIT | ZONE_ERROR;
    }

    return (TRUE);
}