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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [io/] [pci/] [current/] [include/] [pci_hw.h] - Rev 856
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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, 2004 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 // 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., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 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. // ------------------------------------------- // ####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 // Ignore certain BARs at discretion of HAL #ifdef HAL_PCI_IGNORE_BAR #define CYG_PCI_IGNORE_BAR(__dinfo, __bar) \ HAL_PCI_IGNORE_BAR((__dinfo), (__bar)) #else #define CYG_PCI_IGNORE_BAR(__dinfo, __bar) 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
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