[deliverable/linux.git] / drivers / thermal / ti-soc-thermal / ti-thermal.h

/*
 * OMAP thermal definitions
 *
 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
 * Contact:
 *   Eduardo Valentin <eduardo.valentin@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */
#ifndef __TI_THERMAL_H
#define __TI_THERMAL_H

#include "ti-bandgap.h"

/* sensors gradient and offsets */
#define OMAP_GRADIENT_SLOPE_4430				0
#define OMAP_GRADIENT_CONST_4430				20000
#define OMAP_GRADIENT_SLOPE_4460				348
#define OMAP_GRADIENT_CONST_4460				-9301
#define OMAP_GRADIENT_SLOPE_4470				308
#define OMAP_GRADIENT_CONST_4470				-7896

#define OMAP_GRADIENT_SLOPE_5430_CPU				65
#define OMAP_GRADIENT_CONST_5430_CPU				-1791
#define OMAP_GRADIENT_SLOPE_5430_GPU				117
#define OMAP_GRADIENT_CONST_5430_GPU				-2992

#define DRA752_GRADIENT_SLOPE					0
#define DRA752_GRADIENT_CONST					2000

/* PCB sensor calculation constants */
#define OMAP_GRADIENT_SLOPE_W_PCB_4430				0
#define OMAP_GRADIENT_CONST_W_PCB_4430				20000
#define OMAP_GRADIENT_SLOPE_W_PCB_4460				1142
#define OMAP_GRADIENT_CONST_W_PCB_4460				-393
#define OMAP_GRADIENT_SLOPE_W_PCB_4470				1063
#define OMAP_GRADIENT_CONST_W_PCB_4470				-477

#define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU			100
#define OMAP_GRADIENT_CONST_W_PCB_5430_CPU			484
#define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU			464
#define OMAP_GRADIENT_CONST_W_PCB_5430_GPU			-5102

#define DRA752_GRADIENT_SLOPE_W_PCB				0
#define DRA752_GRADIENT_CONST_W_PCB				2000

/* trip points of interest in milicelsius (at hotspot level) */
#define OMAP_TRIP_COLD						100000
#define OMAP_TRIP_HOT						110000
#define OMAP_TRIP_SHUTDOWN					125000
#define OMAP_TRIP_NUMBER					2
#define OMAP_TRIP_STEP							\
	((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1))

/* Update rates */
#define FAST_TEMP_MONITORING_RATE				250

/* helper macros */
/**
 * ti_thermal_get_trip_value - returns trip temperature based on index
 * @i:	trip index
 */
#define ti_thermal_get_trip_value(i)					\
	(OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))

/**
 * ti_thermal_is_valid_trip - check for trip index
 * @i:	trip index
 */
#define ti_thermal_is_valid_trip(trip)				\
	((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)

#ifdef CONFIG_TI_THERMAL
int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
#else
static inline
int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
{
	return 0;
}

static inline
int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
{
	return 0;
}

static inline
int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
{
	return 0;
}

static inline
int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
{
	return 0;
}

static inline
int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
{
	return 0;
}
#endif
#endif
Commit	Line	Data
445eaf87 EV	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	*/
097ca6a3 EV	23	#ifndef __TI_THERMAL_H
097ca6a3 EV	24	#define __TI_THERMAL_H
445eaf87	25
7372add4	26	#include "ti-bandgap.h"
445eaf87 EV	27
445eaf87 EV	28	/* sensors gradient and offsets */
b763fdae EV	29	#define OMAP_GRADIENT_SLOPE_4430 0
b763fdae EV	30	#define OMAP_GRADIENT_CONST_4430 20000
445eaf87 EV	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
21bf2202 EV	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
445eaf87	40
8926fa4f EV	41	#define DRA752_GRADIENT_SLOPE 0
	42	#define DRA752_GRADIENT_CONST 2000
	43
445eaf87	44	/* PCB sensor calculation constants */
b763fdae EV	45	#define OMAP_GRADIENT_SLOPE_W_PCB_4430 0
b763fdae EV	46	#define OMAP_GRADIENT_CONST_W_PCB_4430 20000
445eaf87 EV	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
21bf2202 EV	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
445eaf87	56
8926fa4f EV	57	#define DRA752_GRADIENT_SLOPE_W_PCB 0
	58	#define DRA752_GRADIENT_CONST_W_PCB 2000
	59
445eaf87 EV	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	/**
03e859d3	73	* ti_thermal_get_trip_value - returns trip temperature based on index
445eaf87 EV	74	* @i: trip index
445eaf87 EV	75	*/
03e859d3	76	#define ti_thermal_get_trip_value(i) \
445eaf87 EV	77	(OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))
	78
	79	/**
03e859d3	80	* ti_thermal_is_valid_trip - check for trip index
445eaf87 EV	81	* @i: trip index
445eaf87 EV	82	*/
03e859d3	83	#define ti_thermal_is_valid_trip(trip) \
445eaf87 EV	84	((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)
445eaf87 EV	85
097ca6a3	86	#ifdef CONFIG_TI_THERMAL
03e859d3 EV	87	int ti_thermal_expose_sensor(struct ti_bandgap bgp, int id, char domain);
03e859d3 EV	88	int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
8c99c166	89	int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
03e859d3 EV	90	int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
03e859d3 EV	91	int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
445eaf87 EV	92	#else
445eaf87 EV	93	static inline
03e859d3	94	int ti_thermal_expose_sensor(struct ti_bandgap bgp, int id, char domain)
445eaf87 EV	95	{
	96	return 0;
	97	}
	98
	99	static inline
03e859d3	100	int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
445eaf87 EV	101	{
	102	return 0;
	103	}
	104
8c99c166 EV	105	static inline
	106	int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
	107	{
	108	return 0;
	109	}
	110
445eaf87	111	static inline
03e859d3	112	int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
445eaf87 EV	113	{
	114	return 0;
	115	}
	116
	117	static inline
03e859d3	118	int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
445eaf87 EV	119	{
	120	return 0;
	121	}
	122	#endif
	123	#endif