mirror of
https://github.com/xcat2/xNBA.git
synced 2024-12-14 15:21:32 +00:00
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
#ifndef INIT_H
|
|
#define INIT_H
|
|
|
|
/*
|
|
* In order to avoid having objects dragged in just because main()
|
|
* calls their initialisation function, we allow each object to
|
|
* specify that it has a function that must be called to initialise
|
|
* that object. The function call_init_fns() will call all the
|
|
* included objects' initialisation functions.
|
|
*
|
|
* Objects that require initialisation should include init.h and
|
|
* register the initialisation function using INIT_FN().
|
|
*
|
|
* Objects may register up to three functions: init, reset and exit.
|
|
* init gets called only once, at the point that Etherboot is
|
|
* initialised (before the call to main()). reset gets called between
|
|
* each boot attempt. exit gets called only once, just before the
|
|
* loaded OS starts up (or just before Etherboot exits, if it exits,
|
|
* or when the PXE NBP calls UNDI_SHUTDOWN, if it's a PXE NBP).
|
|
*
|
|
* The syntax is:
|
|
* INIT_FN ( init_order, init_function, reset_function, exit_function );
|
|
* where init_order is an ordering taken from the list below. Any
|
|
* function may be left as NULL.
|
|
*/
|
|
|
|
/* An entry in the initialisation function table */
|
|
|
|
struct init_fn {
|
|
void ( *init ) ( void );
|
|
void ( *reset ) ( void );
|
|
void ( *exit ) ( void );
|
|
};
|
|
|
|
/* Use double digits to avoid problems with "10" < "9" on alphabetic sort */
|
|
#define INIT_LIBRM "00"
|
|
#define INIT_CONSOLE "01"
|
|
#define INIT_CPU "02"
|
|
#define INIT_TIMERS "03"
|
|
#define INIT_PCIBIOS "04"
|
|
#define INIT_MEMSIZES "05"
|
|
#define INIT_RELOCATE "06"
|
|
#define INIT_PCMCIA "07"
|
|
#define INIT_HEAP "08"
|
|
|
|
/* Macro for creating an initialisation function table entry */
|
|
#define INIT_FN( init_order, init_func, reset_func, exit_func ) \
|
|
static struct init_fn init_functions \
|
|
__attribute__ ((used,__section__(".init_fns." init_order))) = { \
|
|
.init = init_func, \
|
|
.reset = reset_func, \
|
|
.exit = exit_func, \
|
|
};
|
|
|
|
/* Function prototypes */
|
|
|
|
void call_init_fns ( void );
|
|
void call_reset_fns ( void );
|
|
void call_exit_fns ( void );
|
|
|
|
#endif /* INIT_H */
|