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#ifndef CYGONCE_PLF_IO_H

#define CYGONCE_PLF_IO_H

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

//

//      plf_io.h

//

//      Platform specific IO support

//

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

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// for more details.                                                        

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//

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

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

//

// Author(s):    t@keshi.org

// Contributors: t@keshi.org

// Date:         2001-07-30

// Purpose:      Dreamcast PCI IO support macros

// Description: 

// Usage:        #include <cyg/hal/plf_io.h>

//

//####DESCRIPTIONEND####

//

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

#include <cyg/hal/hal_io.h>

#include <cyg/hal/hal_intr.h>

extern cyg_uint32 cyg_hal_plf_pci_cfg_read_dword (cyg_uint32 bus,

                                                  cyg_uint32 devfn,

                                                  cyg_uint32 offset);

extern cyg_uint16 cyg_hal_plf_pci_cfg_read_word  (cyg_uint32 bus,

                                                  cyg_uint32 devfn,

                                                  cyg_uint32 offset);

extern cyg_uint8 cyg_hal_plf_pci_cfg_read_byte   (cyg_uint32 bus,

                                                  cyg_uint32 devfn,

                                                  cyg_uint32 offset);

extern void cyg_hal_plf_pci_cfg_write_dword (cyg_uint32 bus,

                                             cyg_uint32 devfn,

                                             cyg_uint32 offset,

                                             cyg_uint32 val);

extern void cyg_hal_plf_pci_cfg_write_word  (cyg_uint32 bus,

                                             cyg_uint32 devfn,

                                             cyg_uint32 offset,

                                             cyg_uint16 val);

extern void cyg_hal_plf_pci_cfg_write_byte   (cyg_uint32 bus,

                                              cyg_uint32 devfn,

                                              cyg_uint32 offset,

                                              cyg_uint8 val);

// Initialize the PCI bus.

externC void cyg_hal_plf_pci_init(void);

#define HAL_PCI_INIT() cyg_hal_plf_pci_init()

// Read a value from the PCI configuration space of the appropriate

// size at an address composed from the bus, devfn and offset.

#define HAL_PCI_CFG_READ_UINT8( __bus, __devfn, __offset, __val )  \

    __val = cyg_hal_plf_pci_cfg_read_byte((__bus),  (__devfn), (__offset))

#define HAL_PCI_CFG_READ_UINT16( __bus, __devfn, __offset, __val ) \

    __val = cyg_hal_plf_pci_cfg_read_word((__bus),  (__devfn), (__offset))

#define HAL_PCI_CFG_READ_UINT32( __bus, __devfn, __offset, __val ) \

    __val = cyg_hal_plf_pci_cfg_read_dword((__bus),  (__devfn), (__offset))

// Write a value to the PCI configuration space of the appropriate

// size at an address composed from the bus, devfn and offset.

#define HAL_PCI_CFG_WRITE_UINT8( __bus, __devfn, __offset, __val )  \

    cyg_hal_plf_pci_cfg_write_byte((__bus),  (__devfn), (__offset), (__val))

#define HAL_PCI_CFG_WRITE_UINT16( __bus, __devfn, __offset, __val ) \

    cyg_hal_plf_pci_cfg_write_word((__bus),  (__devfn), (__offset), (__val))

#define HAL_PCI_CFG_WRITE_UINT32( __bus, __devfn, __offset, __val ) \

    cyg_hal_plf_pci_cfg_write_dword((__bus),  (__devfn), (__offset), (__val))

#define HAL_PCI_TRANSLATE_INTERRUPT( __bus, __devfn, __vec, __valid) \

        CYG_MACRO_START \

        __valid = true; \

        __vec = CYGNUM_HAL_INTERRUPT_LVL11; \

        CYG_MACRO_END

#define HAL_PCI_ALLOC_BASE_MEMORY 0

#define HAL_PCI_ALLOC_BASE_IO     0

#define HAL_PCI_PHYSICAL_MEMORY_BASE    0x00000000

#define HAL_PCI_PHYSICAL_IO_BASE        0x00000000

#define CYGARC_PCI_DMA_ADDRESS(_x_) ((_x_) & 0x1fffffff)

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

#endif // ifndef CYGONCE_PLF_IO_H

// End of plf_io.h