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#ifndef _PXE_CALL_H
#define _PXE_CALL_H
/** @file
*
* PXE API entry point
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <pxe_api.h>
#include <realmode.h>
struct net_device;
/** PXE load address segment */
#define PXE_LOAD_SEGMENT 0
/** PXE load address offset */
#define PXE_LOAD_OFFSET 0x7c00
/** PXE physical load address */
#define PXE_LOAD_PHYS ( ( PXE_LOAD_SEGMENT << 4 ) + PXE_LOAD_OFFSET )
/** !PXE structure */
extern struct s_PXE __text16 ( ppxe );
#define ppxe __use_text16 ( ppxe )
/** PXENV+ structure */
extern struct s_PXENV __text16 ( pxenv );
#define pxenv __use_text16 ( pxenv )
extern void pxe_activate ( struct net_device *netdev );
extern int pxe_deactivate ( void );
extern int pxe_start_nbp ( void );
extern __asmcall void pxe_api_call ( struct i386_all_regs *ix86 );
extern int _pxe_api_call_weak ( struct i386_all_regs *ix86 )
__attribute__ (( weak ));
/**
* Dispatch PXE API call weakly
*
* @v ix86 Registers for PXE call
* @ret present Zero if the PXE stack is present, nonzero if not
*
* A successful return only indicates that the PXE stack was available
* for dispatching the call; it says nothing about the success of
* whatever the call asked for.
*/
static inline int pxe_api_call_weak ( struct i386_all_regs *ix86 )
{
if ( _pxe_api_call_weak != NULL )
return _pxe_api_call_weak ( ix86 );
return -1;
}
#endif /* _PXE_CALL_H */
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