LXR linux/drivers/thermal/ti-soc-thermal/ti-thermal.h

   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