1 #ifndef _IPXE_INIT_H 2 #define _IPXE_INIT_H 3 4 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); 5 6 #include <ipxe/tables.h> 7 8 /** 9 * An initialisation function 10 * 11 * Initialisation functions are called exactly once, as part of the 12 * call to initialise(). 13 */ 14 struct init_fn { 15 void ( * initialise ) ( void ); 16 }; 17 18 /** Initialisation function table */ 19 #define INIT_FNS __table ( struct init_fn, "init_fns" ) 20 21 /** Declare an initialisation functon */ 22 #define __init_fn( init_order ) __table_entry ( INIT_FNS, init_order ) 23 24 /** @defgroup initfn_order Initialisation function ordering 25 * @{ 26 */ 27 28 #define INIT_EARLY 01 /**< Early initialisation */ 29 #define INIT_CONSOLE 02 /**< Console initialisation */ 30 #define INIT_NORMAL 03 /**< Normal initialisation */ 31 #define INIT_LATE 04 /**< Late initialisation */ 32 33 /** @} */ 34 35 /** 36 * A startup/shutdown function 37 * 38 * Startup and shutdown functions may be called multiple times, as 39 * part of the calls to startup() and shutdown(). 40 */ 41 struct startup_fn { 42 const char *name; 43 void ( * startup ) ( void ); 44 void ( * shutdown ) ( int booting ); 45 }; 46 47 /** Startup/shutdown function table */ 48 #define STARTUP_FNS __table ( struct startup_fn, "startup_fns" ) 49 50 /** Declare a startup/shutdown function */ 51 #define __startup_fn( startup_order ) \ 52 __table_entry ( STARTUP_FNS, startup_order ) 53 54 /** @defgroup startfn_order Startup/shutdown function ordering 55 * 56 * Shutdown functions are called in the reverse order to startup 57 * functions. 58 * 59 * @{ 60 */ 61 62 #define STARTUP_EARLY 01 /**< Early startup */ 63 #define STARTUP_NORMAL 02 /**< Normal startup */ 64 #define STARTUP_LATE 03 /**< Late startup */ 65 66 /** @} */ 67 68 extern void initialise ( void ); 69 extern void startup ( void ); 70 extern void shutdown ( int booting ); 71 72 /** 73 * Shut down system for OS boot 74 * 75 */ shutdown_boot(void)76static inline void shutdown_boot ( void ) { 77 shutdown ( 1 ); 78 } 79 80 /** 81 * Shut down system for exit back to firmware 82 * 83 */ shutdown_exit(void)84static inline void shutdown_exit ( void ) { 85 shutdown ( 0 ); 86 } 87 88 #endif /* _IPXE_INIT_H */ 89