xref: /openbmc/u-boot/include/tmu.h (revision da4105df)
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