1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (c) 2011 The Chromium OS Authors.
4 */
5
6#ifndef __INITCALL_H
7#define __INITCALL_H
8
9#include <asm/types.h>
10#include <event.h>
11
12_Static_assert(EVT_COUNT < 256, "Can only support 256 event types with 8 bits");
13
14/**
15 * init_fnc_t - Init function
16 *
17 * Return: 0 if OK -ve on error
18 */
19typedef int (*init_fnc_t)(void);
20
21/* Top bit indicates that the initcall is an event */
22#define INITCALL_IS_EVENT	GENMASK(BITS_PER_LONG - 1, 8)
23#define INITCALL_EVENT_TYPE	GENMASK(7, 0)
24
25#define INITCALL_EVENT(_type)	(void *)((_type) | INITCALL_IS_EVENT)
26
27/**
28 * initcall_run_list() - Run through a list of function calls
29 *
30 * This calls functions one after the other, stopping at the first error, or
31 * when NULL is obtained.
32 *
33 * @init_sequence: NULL-terminated init sequence to run
34 * Return: 0 if OK, or -ve error code from the first failure
35 */
36int initcall_run_list(const init_fnc_t init_sequence[]);
37
38#endif
39