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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [io/] [pci/] [v2_0/] [include/] [pci_hw.h] - Blame information for rev 27

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#ifndef CYGONCE_PCI_HW_H
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#define CYGONCE_PCI_HW_H
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//=============================================================================
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//
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//      pci_hw.h
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//
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//      PCI hardware library
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//
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//=============================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//=============================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s):    jskov, from design by nickg 
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// Contributors: jskov
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// Date:         1999-08-09
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// Purpose:      PCI hardware configuration access
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// Usage:
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//              #include <cyg/io/pci_hw.h>
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// Description: 
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//          This API is used by the PCI library to access the PCI bus
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//          configuration space. Although this should not normally be
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//          necessary, this API may also be used by device driver or 
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//          application code to perform PCI bus operations not supported
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//          by the PCI library.
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//
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//####DESCRIPTIONEND####
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//
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//=============================================================================
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// Rely on hal_io.h to include plf_io.h if it exists for the selected target.
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#include <cyg/hal/hal_io.h>             // HAL_PCI_ macros
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#ifdef HAL_PCI_INIT
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// This varible selects whether the PCI library gets built (requires
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// HAL_PCI_INIT to be defined by the platform io header file)
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#define CYG_PCI_PRESENT
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#include <cyg/infra/cyg_type.h>
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#include <cyg/io/pci_cfg.h>
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// This is the lowest level where devfns are used.
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#define CYG_PCI_DEV_MAKE_DEVFN(__dev, __fn) (((__dev)<<3)|(__fn))
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#define CYG_PCI_DEV_GET_DEV(__devfn) ((__devfn>>3)&0x1f)
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#define CYG_PCI_DEV_GET_FN(__devfn) (__devfn&0x7)
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// Some buggy PCI chips force us to ignore certain devices so that
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// they may be handled specially.
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#ifdef HAL_PCI_IGNORE_DEVICE
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#define CYG_PCI_IGNORE_DEVICE(__bus, __dev, __fn) \
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            HAL_PCI_IGNORE_DEVICE((__bus), (__dev), (__fn))
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#else
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#define CYG_PCI_IGNORE_DEVICE(__bus, __dev, __fn) 0
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#endif
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// Init
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externC void cyg_pcihw_init(void);
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// Read functions
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externC void cyg_pcihw_read_config_uint8( cyg_uint8 bus, cyg_uint8 devfn,
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                                          cyg_uint8 offset, cyg_uint8 *val);
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externC void cyg_pcihw_read_config_uint16( cyg_uint8 bus, cyg_uint8 devfn,
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                                           cyg_uint8 offset, cyg_uint16 *val);
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externC void cyg_pcihw_read_config_uint32( cyg_uint8 bus, cyg_uint8 devfn,
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                                           cyg_uint8 offset, cyg_uint32 *val);
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// Write functions
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externC void cyg_pcihw_write_config_uint8( cyg_uint8 bus, cyg_uint8 devfn,
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                                           cyg_uint8 offset, cyg_uint8 val);
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externC void cyg_pcihw_write_config_uint16( cyg_uint8 bus, cyg_uint8 devfn,
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                                            cyg_uint8 offset, cyg_uint16 val);
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externC void cyg_pcihw_write_config_uint32( cyg_uint8 bus, cyg_uint8 devfn,
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                                            cyg_uint8 offset, cyg_uint32 val);
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// Interrupt translation
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externC cyg_bool cyg_pcihw_translate_interrupt( cyg_uint8 bus, cyg_uint8 devfn,
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                                                CYG_ADDRWORD *vec);
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#endif // ifdef HAL_PCI_INIT
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//-----------------------------------------------------------------------------
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#endif // ifndef CYGONCE_PCI_HW_H
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// End of pci_hw.h
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