module uefi::proto::evt;
import uefi;


/* 7.1.) Event, Timer, and Task Priority Services */
/* NOTE: EfiEvent is defined in ../def.c3, as it's more globally used. */
enum EventType : uint (uint raw)
{
	TIMER                         { 0x8000_0000 },
	RUNTIME                       { 0x4000_0000 },
	NOTIFY_WAIT                   { 0x0000_0100 },
	NOTIFY_SIGNAL                 { 0x0000_0200 },
	SIGNAL_EXIT_BOOT_SERVICES     { 0x0000_0201 },
	SIGNAL_VIRTUAL_ADDRESS_CHANGE { 0x6000_0202 },
}


/* EFI_EVENT_NOTIFY (7.1.1) */
alias FnEventNotify = fn void(EfiEvent, void*);

/* EFI_CREATE_EVENT (7.1.1) */
alias FnCreateEvent = fn EfiStatus(EventType, EventTpl, FnEventNotify, void*, EfiEvent*);

/* EFI_CREATE_EVENT_EX (7.1.2) */
alias FnCreateEventEx = fn EfiStatus(EventType, EventTpl, FnEventNotify, void*, EfiGuid*, EfiEvent*);

/* EFI event group GUIDs (7.1.2) */
const EfiGuid EVENT_GROUP_EXIT_BOOT_SERVICES        = {
	0x27abf055,
	0xb1b8,
	0x4c26,
	{ 0x80, 0x48, 0x74, 0x8f, 0x37, 0xba, 0xa2, 0xdf }
};
const EfiGuid EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES = {
	0x8be0e274,
	0x3970,
	0x4b44,
	{ 0x80, 0xc5, 0x1a, 0xb9, 0x50, 0x2f, 0x3b, 0xfc }
};
const EfiGuid EVENT_GROUP_VIRTUAL_ADDRESS_CHANGE    = {
	0x13fa7698,
	0xc831,
	0x49c7,
	{ 0x87, 0xea, 0x8f, 0x43, 0xfc, 0xc2, 0x51, 0x96 }
};
const EfiGuid EVENT_GROUP_MEMORY_MAP_CHANGE         = {
	0x78bee926,
	0x692f,
	0x48fd,
	{ 0x9e, 0xdb, 0x01, 0x42, 0x2e, 0xf0, 0xd7, 0xab }
};
const EfiGuid EVENT_GROUP_READY_TO_BOOT             = {
	0x7ce88fb3,
	0x4bd7,
	0x4679,
	{ 0x87, 0xa8, 0xa8, 0xd8, 0xde, 0xe5, 0x0d, 0x2b }
};
const EfiGuid EVENT_GROUP_AFTER_READY_TO_BOOT       = {
	0x3a2a00ad,
	0x98b9,
	0x4cdf,
	{ 0xa4, 0x78, 0x70, 0x27, 0x77, 0xf1, 0xc1, 0x0b }
};
const EfiGuid EVENT_GROUP_RESET_SYSTEM              = {
	0x62da6a56,
	0x13fb,
	0x485a,
	{ 0xa8, 0xda, 0xa3, 0xdd, 0x79, 0x12, 0xcb, 0x6b }
};

/* EFI_CLOSE_EVENT (7.1.3) */
alias FnCloseEvent = fn EfiStatus(EfiEvent);

/* EFI_SIGNAL_EVENT (7.1.4) */
alias FnSignalEvent = fn EfiStatus(EfiEvent);

/* EFI_WAIT_FOR_EVENT (7.1.5) */
alias FnWaitForEvent = fn EfiStatus(usz, EfiEvent*, usz*);

/* EFI_CHECK_EVENT (7.1.6) */
alias FnCheckEvent = fn EfiStatus(EfiEvent);

/* EFI_SET_TIMER (7.1.7) and EFI_TIMER_DELAY */
alias FnSetTimer = fn EfiStatus(EfiEvent, TimerDelay, ulong);

enum TimerDelay
{
	TIMER_CANCEL,
	TIMER_PERIODIC,
	TIMER_RELATIVE,
}

/* EFI_RAISE_TPL (7.1.8) and TPL */
alias FnRaiseTpl = fn EventTpl(EventTpl);

typedef EventTpl = usz;
const EventTpl TPL_APPLICATION = (EventTpl)4;
const EventTpl TPL_CALLBACK    = (EventTpl)8;
const EventTpl TPL_NOTIFY      = (EventTpl)16;
const EventTpl TPL_HIGH_LEVEL  = (EventTpl)31;

/* EFI_RESTORE_TPL (7.1.9) */
alias FnRestoreTpl = fn void(EventTpl);