1/*
2 * OMAP thermal definitions
3 *
4 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
5 * Contact:
6 *   Eduardo Valentin <eduardo.valentin@ti.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23#ifndef __TI_THERMAL_H
24#define __TI_THERMAL_H
25
26#include "ti-bandgap.h"
27
28/* sensors gradient and offsets */
29#define OMAP_GRADIENT_SLOPE_4430				0
30#define OMAP_GRADIENT_CONST_4430				20000
31#define OMAP_GRADIENT_SLOPE_4460				348
32#define OMAP_GRADIENT_CONST_4460				-9301
33#define OMAP_GRADIENT_SLOPE_4470				308
34#define OMAP_GRADIENT_CONST_4470				-7896
35
36#define OMAP_GRADIENT_SLOPE_5430_CPU				65
37#define OMAP_GRADIENT_CONST_5430_CPU				-1791
38#define OMAP_GRADIENT_SLOPE_5430_GPU				117
39#define OMAP_GRADIENT_CONST_5430_GPU				-2992
40
41#define DRA752_GRADIENT_SLOPE					0
42#define DRA752_GRADIENT_CONST					2000
43
44/* PCB sensor calculation constants */
45#define OMAP_GRADIENT_SLOPE_W_PCB_4430				0
46#define OMAP_GRADIENT_CONST_W_PCB_4430				20000
47#define OMAP_GRADIENT_SLOPE_W_PCB_4460				1142
48#define OMAP_GRADIENT_CONST_W_PCB_4460				-393
49#define OMAP_GRADIENT_SLOPE_W_PCB_4470				1063
50#define OMAP_GRADIENT_CONST_W_PCB_4470				-477
51
52#define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU			100
53#define OMAP_GRADIENT_CONST_W_PCB_5430_CPU			484
54#define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU			464
55#define OMAP_GRADIENT_CONST_W_PCB_5430_GPU			-5102
56
57#define DRA752_GRADIENT_SLOPE_W_PCB				0
58#define DRA752_GRADIENT_CONST_W_PCB				2000
59
60/* trip points of interest in milicelsius (at hotspot level) */
61#define OMAP_TRIP_COLD						100000
62#define OMAP_TRIP_HOT						110000
63#define OMAP_TRIP_SHUTDOWN					125000
64#define OMAP_TRIP_NUMBER					2
65#define OMAP_TRIP_STEP							\
66	((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1))
67
68/* Update rates */
69#define FAST_TEMP_MONITORING_RATE				250
70
71/* helper macros */
72/**
73 * ti_thermal_get_trip_value - returns trip temperature based on index
74 * @i:	trip index
75 */
76#define ti_thermal_get_trip_value(i)					\
77	(OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))
78
79/**
80 * ti_thermal_is_valid_trip - check for trip index
81 * @i:	trip index
82 */
83#define ti_thermal_is_valid_trip(trip)				\
84	((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)
85
86#ifdef CONFIG_TI_THERMAL
87int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
88int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
89int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
90int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
91int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
92#else
93static inline
94int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
95{
96	return 0;
97}
98
99static inline
100int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
101{
102	return 0;
103}
104
105static inline
106int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
107{
108	return 0;
109}
110
111static inline
112int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
113{
114	return 0;
115}
116
117static inline
118int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
119{
120	return 0;
121}
122#endif
123#endif
124