xref: /openbmc/u-boot/include/tmu.h (revision 3cbeb0f0)
1 /*
2  * Copyright (c) 2012 Samsung Electronics Co., Ltd.
3  *      http://www.samsung.com
4  * Akshay Saraswat <akshay.s@samsung.com>
5  *
6  * Thermal Management Unit
7  *
8  * See file CREDITS for list of people who contributed to this
9  * project.
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License version 2 as
13  * published by the Free Software Foundation.
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
17  * MA 02111-1307 USA
18  */
19 
20 #ifndef _TMU_H
21 #define _TMU_H
22 
23 enum tmu_status_t {
24 	TMU_STATUS_INIT = -1,
25 	TMU_STATUS_NORMAL = 0,
26 	TMU_STATUS_WARNING,
27 	TMU_STATUS_TRIPPED,
28 };
29 
30 /*
31  * Monitors status of the TMU device and exynos temperature
32  *
33  * @param temp	pointer to the current temperature value
34  * @return	enum tmu_status_t value, code indicating event to execute
35  *		and -1 on error
36  */
37 enum tmu_status_t tmu_monitor(int *temp);
38 
39 /*
40  * Initialize TMU device
41  *
42  * @param blob  FDT blob
43  * @return	int value, 0 for success
44  */
45 int tmu_init(const void *blob);
46 #endif	/* _THERMAL_H_ */
47