xref: /openbmc/u-boot/arch/sandbox/cpu/state.c (revision 3f82d89d)
1 /*
2  * Copyright (c) 2011-2012 The Chromium OS Authors.
3  * See file CREDITS for list of people who contributed to this
4  * project.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19  * MA 02111-1307 USA
20  */
21 
22 #include <common.h>
23 #include <asm/state.h>
24 
25 /* Main state record for the sandbox */
26 static struct sandbox_state main_state;
27 static struct sandbox_state *state;	/* Pointer to current state record */
28 
29 void state_record_exit(enum exit_type_id exit_type)
30 {
31 	state->exit_type = exit_type;
32 }
33 
34 struct sandbox_state *state_get_current(void)
35 {
36 	assert(state);
37 	return state;
38 }
39 
40 int state_init(void)
41 {
42 	state = &main_state;
43 
44 	/*
45 	 * Example of how to use GPIOs:
46 	 *
47 	 * sandbox_gpio_set_direction(170, 0);
48 	 * sandbox_gpio_set_value(170, 0);
49 	 */
50 	return 0;
51 }
52