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#ifndef CYGONCE_PCI_HW_H

#define CYGONCE_PCI_HW_H

//=============================================================================

//

//      pci_hw.h

//

//      PCI hardware library

//

//=============================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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

// Software Foundation; either version 2 or (at your option) any later version.

//

// eCos is distributed in the hope that it will be useful, but WITHOUT ANY

// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// 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 along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    jskov, from design by nickg 

// Contributors: jskov

// Date:         1999-08-09

// Purpose:      PCI hardware configuration access

// Usage:

//              #include <cyg/io/pci_hw.h>

// Description: 

//          This API is used by the PCI library to access the PCI bus

//          configuration space. Although this should not normally be

//          necessary, this API may also be used by device driver or 

//          application code to perform PCI bus operations not supported

//          by the PCI library.

//

//####DESCRIPTIONEND####

//

//=============================================================================

// Rely on hal_io.h to include plf_io.h if it exists for the selected target.

#include <cyg/hal/hal_io.h>             // HAL_PCI_ macros

#ifdef HAL_PCI_INIT

// This varible selects whether the PCI library gets built (requires

// HAL_PCI_INIT to be defined by the platform io header file)

#define CYG_PCI_PRESENT

#include <cyg/infra/cyg_type.h>

#include <cyg/io/pci_cfg.h>

// This is the lowest level where devfns are used.

#define CYG_PCI_DEV_MAKE_DEVFN(__dev, __fn) (((__dev)<<3)|(__fn))

#define CYG_PCI_DEV_GET_DEV(__devfn) ((__devfn>>3)&0x1f)

#define CYG_PCI_DEV_GET_FN(__devfn) (__devfn&0x7)

// Some buggy PCI chips force us to ignore certain devices so that

// they may be handled specially.

#ifdef HAL_PCI_IGNORE_DEVICE

#define CYG_PCI_IGNORE_DEVICE(__bus, __dev, __fn) \

            HAL_PCI_IGNORE_DEVICE((__bus), (__dev), (__fn))

#else

#define CYG_PCI_IGNORE_DEVICE(__bus, __dev, __fn) 0

#endif

// Init

externC void cyg_pcihw_init(void);

// Read functions

externC void cyg_pcihw_read_config_uint8( cyg_uint8 bus, cyg_uint8 devfn,

                                          cyg_uint8 offset, cyg_uint8 *val);

externC void cyg_pcihw_read_config_uint16( cyg_uint8 bus, cyg_uint8 devfn,

                                           cyg_uint8 offset, cyg_uint16 *val);

externC void cyg_pcihw_read_config_uint32( cyg_uint8 bus, cyg_uint8 devfn,

                                           cyg_uint8 offset, cyg_uint32 *val);

// Write functions

externC void cyg_pcihw_write_config_uint8( cyg_uint8 bus, cyg_uint8 devfn,

                                           cyg_uint8 offset, cyg_uint8 val);

externC void cyg_pcihw_write_config_uint16( cyg_uint8 bus, cyg_uint8 devfn,

                                            cyg_uint8 offset, cyg_uint16 val);

externC void cyg_pcihw_write_config_uint32( cyg_uint8 bus, cyg_uint8 devfn,

                                            cyg_uint8 offset, cyg_uint32 val);

// Interrupt translation

externC cyg_bool cyg_pcihw_translate_interrupt( cyg_uint8 bus, cyg_uint8 devfn,

                                                CYG_ADDRWORD *vec);

#endif // ifdef HAL_PCI_INIT

//-----------------------------------------------------------------------------

#endif // ifndef CYGONCE_PCI_HW_H

// End of pci_hw.h