fa4aec8f03
For extremely tight space requirements and specific applications, it is sometimes desirable to create gPXE images that cannot provide the PXE API functionality to client programs. Add a configuration header option, PXE_STACK, that can be removed to remove this stack. Also add PXE_MENU to control the PXE boot menu, which most uses of gPXE do not need. Signed-off-by: Marty Connor <mdc@etherboot.org>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
#ifndef _PXE_CALL_H
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#define _PXE_CALL_H
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/** @file
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*
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* PXE API entry point
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <pxe_api.h>
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#include <realmode.h>
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struct net_device;
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/** PXE load address segment */
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#define PXE_LOAD_SEGMENT 0
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/** PXE load address offset */
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#define PXE_LOAD_OFFSET 0x7c00
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/** PXE physical load address */
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#define PXE_LOAD_PHYS ( ( PXE_LOAD_SEGMENT << 4 ) + PXE_LOAD_OFFSET )
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/** !PXE structure */
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extern struct s_PXE __text16 ( ppxe );
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#define ppxe __use_text16 ( ppxe )
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/** PXENV+ structure */
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extern struct s_PXENV __text16 ( pxenv );
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#define pxenv __use_text16 ( pxenv )
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extern void pxe_activate ( struct net_device *netdev );
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extern int pxe_deactivate ( void );
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extern int pxe_start_nbp ( void );
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extern __asmcall void pxe_api_call ( struct i386_all_regs *ix86 );
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extern int _pxe_api_call_weak ( struct i386_all_regs *ix86 )
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__attribute__ (( weak ));
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/**
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* Dispatch PXE API call weakly
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*
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* @v ix86 Registers for PXE call
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* @ret present Zero if the PXE stack is present, nonzero if not
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*
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* A successful return only indicates that the PXE stack was available
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* for dispatching the call; it says nothing about the success of
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* whatever the call asked for.
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*/
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static inline int pxe_api_call_weak ( struct i386_all_regs *ix86 )
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{
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if ( _pxe_api_call_weak != NULL )
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return _pxe_api_call_weak ( ix86 );
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return -1;
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}
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#endif /* _PXE_CALL_H */
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