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79 lines
2.2 KiB
79 lines
2.2 KiB
// $Header: G:/SwDev/WDM/Video/bt848/rcs/Gpio.h 1.2 1998/04/29 22:43:33 tomz Exp $
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#ifndef __GPIO_H
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#define __GPIO_H
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#include "regField.h"
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#include "viddefs.h"
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#include "gpiotype.h"
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#include "retcode.h"
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//===========================================================================
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// Constants
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//===========================================================================
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const int MAX_GPDATA_SIZE = 64; // maximum number of DWORDs in GPDATA
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const int MAX_GPIO_BIT = 23; // maximum bit number for GPIO registers
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/////////////////////////////////////////////////////////////////////////////
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// CLASS GPIO
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//
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// Description:
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// This class encapsulates the register fields in the GPIO register of the
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// Bt848. A complete set of functions are developed to manipulate all the
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// register fields in the GPIO for the Bt848.
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//
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/////////////////////////////////////////////////////////////////////////////
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class GPIO
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{
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private:
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bool initOK;
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public:
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// Constructor
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GPIO( void );
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~GPIO();
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// Member functions
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bool IsInitOK( void );
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void SetGPCLKMODE( State );
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int GetGPCLKMODE( void );
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void SetGPIOMODE( GPIOMode );
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int GetGPIOMODE( void );
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void SetGPWEC( State );
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int GetGPWEC( void );
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void SetGPINTI( State );
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int GetGPINTI( void );
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void SetGPINTC( State );
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int GetGPINTC( void );
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ErrorCode SetGPOE( int, State );
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void SetGPOE( DWORD );
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int GetGPOE( int );
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DWORD GetGPOE( void );
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ErrorCode SetGPIE( int, State );
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void SetGPIE( DWORD );
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int GetGPIE( int );
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DWORD GetGPIE( void );
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ErrorCode SetGPDATA( GPIOReg *, int, int offset = 0 );
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ErrorCode GetGPDATA( GPIOReg *, int, int offset = 0 );
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ErrorCode SetGPDATA( int, int, DWORD, int offset = 0 );
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ErrorCode GetGPDATA( int, int, DWORD *, int offset = 0 );
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protected:
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RegisterW decRegGPIO;
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RegField decFieldGPCLKMODE;
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RegField decFieldGPIOMODE;
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RegField decFieldGPWEC;
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RegField decFieldGPINTI;
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RegField decFieldGPINTC;
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RegisterDW decRegGPOE;
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RegisterDW decRegGPIE;
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RegisterDW decRegGPDATA;
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};
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#endif // __GPIO_H
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