#ifndef CYGONCE_PLF_IO_H
#define CYGONCE_PLF_IO_H

//=============================================================================
//
//      plf_io.h
//
//      Platform specific IO support
//
//=============================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under    
// the terms of the GNU General Public License as published by the Free     
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// version.                                                                 
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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
// for more details.                                                        
//
// You should have received a copy of the GNU General Public License        
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//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
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// this file does not by itself cause the resulting work to be covered by   
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// General Public License v2.                                               
//
// This exception does not invalidate any other reasons why a work based    
// on this file might be covered by the GNU General Public License.         
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// ####ECOSGPLCOPYRIGHTEND####                                              
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    msalter
// Contributors: hmt, jskov, msalter
// Date:         2000-10-10
// Purpose:      Intel IOP310 PCI IO support macros
// Description: 
// Usage:        #include <cyg/hal/plf_io.h>
//
//####DESCRIPTIONEND####
//
//=============================================================================

// Translate the PCI interrupt requested by the device (INTA#, INTB#,
// INTC# or INTD#) to the associated CPU interrupt (i.e., HAL vector).
#define HAL_PCI_TRANSLATE_INTERRUPT( __bus, __devfn, __vec, __valid)          \
    CYG_MACRO_START                                                           \
    cyg_uint32 __dev = CYG_PCI_DEV_GET_DEV(__devfn);                          \
    cyg_uint32 __fn = CYG_PCI_DEV_GET_FN(__devfn);                            \
    __valid = false;                                                          \
    if (__bus == (*SBNR_REG + 1) && __dev == 0 && __fn == 0) {		      \
        __vec = CYGNUM_HAL_INTERRUPT_ETHERNET;                                \
        __valid = true;                                                       \
    } else {                                                                  \
        cyg_uint8 __req;                                                      \
        HAL_PCI_CFG_READ_UINT8(__bus, __devfn, CYG_PCI_CFG_INT_PIN, __req);   \
        switch (__dev % 4) {                                                  \
          case 0:                                                             \
            switch(__req) {                                                   \
              case 1: /* INTA */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTA; __valid=true; break;   \
              case 2: /* INTB */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTB; __valid=true; break;   \
              case 3: /* INTC */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTC; __valid=true; break;   \
              case 4: /* INTD */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTD; __valid=true; break;   \
            }                                                                 \
 	    break;                                                            \
          case 1:                                                             \
            switch(__req) {                                                   \
              case 1: /* INTA */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTB; __valid=true; break;   \
              case 2: /* INTB */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTC; __valid=true; break;   \
              case 3: /* INTC */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTD; __valid=true; break;   \
              case 4: /* INTD */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTA; __valid=true; break;   \
            }                                                                 \
 	    break;                                                            \
          case 2:                                                             \
            switch(__req) {                                                   \
              case 1: /* INTA */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTC; __valid=true; break;   \
              case 2: /* INTB */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTD; __valid=true; break;   \
              case 3: /* INTC */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTA; __valid=true; break;   \
              case 4: /* INTD */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTB; __valid=true; break;   \
            }                                                                 \
 	    break;                                                            \
          case 3:                                                             \
            switch(__req) {                                                   \
              case 1: /* INTA */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTD; __valid=true; break;   \
              case 2: /* INTB */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTA; __valid=true; break;   \
              case 3: /* INTC */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTB; __valid=true; break;   \
              case 4: /* INTD */                                              \
                __vec=CYGNUM_HAL_INTERRUPT_PCI_S_INTC; __valid=true; break;   \
            }                                                                 \
 	    break;                                                            \
        }                                                                     \
    }                                                                         \
    CYG_MACRO_END

//-----------------------------------------------------------------------------
// end of plf_io.h
#endif // CYGONCE_PLF_IO_H
