src/lib/amd.c

   1 /*
   2  * Copyright (C) 2010-2011 thgreasi@gmail.com, jeanfi@gmail.com
   3  * Copyright (C) 2010-2012 jeanfi@gmail.com
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  */
  20 #ifndef LINUX
  21 #define LINUX 1
  22 #endif
  23 #ifdef HAVE_LIBATIADL
  24         /* AMD id for the aticonfig */
  25         int amd_id;
  26 #endif
  27
  28 #include <locale.h>
  29 #include <libintl.h>
  30 #define _(str) gettext(str)
  31
  32 #include <dlfcn.h>
  33 #include <stdio.h>
  34 #include <stdlib.h>
  35 #include <string.h>
  36
  37 #include <adl_sdk.h>
  38
  39 #include "psensor.h"
  40
  41 typedef int (*ADL_MAIN_CONTROL_CREATE)(ADL_MAIN_MALLOC_CALLBACK, int);
  42 typedef int (*ADL_MAIN_CONTROL_DESTROY)();
  43 typedef int (*ADL_ADAPTER_NUMBEROFADAPTERS_GET) (int *);
  44 typedef int (*ADL_ADAPTER_ADAPTERINFO_GET) (LPAdapterInfo, int);
  45 typedef int (*ADL_ADAPTER_ACTIVE_GET) (int, int*);
  46 typedef int (*ADL_OVERDRIVE5_TEMPERATURE_GET) (int, int, ADLTemperature*);
  47 typedef int (*ADL_OVERDRIVE5_FANSPEED_GET) (int, int, ADLFanSpeedValue*);
  48
  49 static ADL_MAIN_CONTROL_CREATE            adl_main_control_create;
  50 static ADL_MAIN_CONTROL_DESTROY           adl_main_control_destroy;
  51 static ADL_ADAPTER_NUMBEROFADAPTERS_GET   adl_adapter_numberofadapters_get;
  52 static ADL_ADAPTER_ADAPTERINFO_GET        adl_adapter_adapterinfo_get;
  53 static ADL_ADAPTER_ACTIVE_GET             adl_adapter_active_get;
  54 static ADL_OVERDRIVE5_TEMPERATURE_GET     adl_overdrive5_temperature_get;
  55 static ADL_OVERDRIVE5_FANSPEED_GET        adl_overdrive5_fanspeed_get;
  56
  57 static void *hdll;
  58 static int adl_main_control_done;
  59 static int *active_adapters;
  60
  61 static void __stdcall *adl_main_memory_alloc(int isize)
  62 {
  63         void *lpbuffer = malloc(isize);
  64         return lpbuffer;
  65 }
  66
  67 static void *getprocaddress(void *plibrary, const char *name)
  68 {
  69         return dlsym(plibrary, name);
  70 }
  71
  72 /*
  73   Returns the temperature (Celcius) of an AMD/Ati GPU.
  74 */
  75 static double get_temp(struct psensor *sensor)
  76 {
  77         ADLTemperature temperature;
  78
  79         temperature.iSize = sizeof(ADLTemperature);
  80         temperature.iTemperature = -273;
  81         if (ADL_OK != adl_overdrive5_temperature_get(sensor->amd_id,
  82                  0, &temperature))
  83                 return UNKNOWN_DBL_VALUE;
  84
  85         return temperature.iTemperature/1000;
  86 }
  87
  88 static double get_fanspeed(struct psensor *sensor)
  89 {
  90         ADLFanSpeedValue fanspeedvalue;
  91
  92         fanspeedvalue.iSize = sizeof(ADLFanSpeedValue);
  93         fanspeedvalue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_RPM;
  94         fanspeedvalue.iFanSpeed = -1;
  95         if (ADL_OK != adl_overdrive5_fanspeed_get(sensor->amd_id,
  96                  0, &fanspeedvalue))
  97                 return UNKNOWN_DBL_VALUE;
  98
  99         return fanspeedvalue.iFanSpeed;
 100 }
 101
 102 static struct psensor *create_sensor(int id, int values_len)
 103 {
 104         char name[200];
 105         char *sid;
 106         int sensor_type;
 107
 108         struct psensor *s;
 109
 110         if (id & 1) {/* odd number ids represent fan sensors */
 111                 id = id >> 1;
 112                 sprintf(name, "GPU%dfan", id);
 113                 sensor_type = SENSOR_TYPE_AMD_FAN;
 114         } else {/* even number ids represent temperature sensors */
 115                 id = id >> 1;
 116                 sprintf(name, "GPU%dtemp", id);
 117                 sensor_type = SENSOR_TYPE_AMD_TEMP;
 118         }
 119
 120         sid = malloc(strlen("amd") + 1 + strlen(name) + 1);
 121         sprintf(sid, "amd %s", name);
 122
 123         s = psensor_create(sid, strdup(name), strdup("ATI GPU"),
 124                            sensor_type, values_len);
 125
 126         s->amd_id = active_adapters[id];
 127
 128         return s;
 129 }
 130
 131 /*
 132   Returns the number of AMD/Ati GPU sensors (temperature and fan
 133   speed).
 134
 135   Return 0 if no AMD/Ati gpus or cannot get information.
 136 */
 137 static int init()
 138 {
 139         LPAdapterInfo lpadapterinfo = NULL;
 140         int i, inumberadapters, inumberadaptersactive = 0;
 141         int lpstatus, iadapterindex;
 142
 143         hdll = NULL;
 144         adl_main_control_done = 0;
 145         active_adapters = NULL;
 146         hdll = dlopen("libatiadlxx.so", RTLD_LAZY|RTLD_GLOBAL);
 147
 148         if (!hdll) {
 149                 log_err(_("AMD: cannot found ADL library."));
 150                 return 0;
 151         }
 152
 153         adl_main_control_create = (ADL_MAIN_CONTROL_CREATE)
 154                  getprocaddress(hdll, "ADL_Main_Control_Create");
 155         adl_main_control_destroy = (ADL_MAIN_CONTROL_DESTROY)
 156                  getprocaddress(hdll, "ADL_Main_Control_Destroy");
 157         adl_adapter_numberofadapters_get = (ADL_ADAPTER_NUMBEROFADAPTERS_GET)
 158                  getprocaddress(hdll, "ADL_Adapter_NumberOfAdapters_Get");
 159         adl_adapter_adapterinfo_get = (ADL_ADAPTER_ADAPTERINFO_GET)
 160                  getprocaddress(hdll, "ADL_Adapter_AdapterInfo_Get");
 161         adl_adapter_active_get = (ADL_ADAPTER_ACTIVE_GET)
 162                  getprocaddress(hdll, "ADL_Adapter_Active_Get");
 163         adl_overdrive5_temperature_get = (ADL_OVERDRIVE5_TEMPERATURE_GET)
 164                  getprocaddress(hdll, "ADL_Overdrive5_Temperature_Get");
 165         adl_overdrive5_fanspeed_get = (ADL_OVERDRIVE5_FANSPEED_GET)
 166                  getprocaddress(hdll, "ADL_Overdrive5_FanSpeed_Get");
 167         if (!adl_main_control_create ||
 168                 !adl_main_control_destroy ||
 169                 !adl_adapter_numberofadapters_get ||
 170                 !adl_adapter_adapterinfo_get ||
 171                 !adl_overdrive5_temperature_get ||
 172                 !adl_overdrive5_fanspeed_get) {
 173                 log_err(_("AMD: missing ADL's API."));
 174                 return 0;
 175         }
 176
 177         if (ADL_OK != adl_main_control_create(adl_main_memory_alloc, 1)) {
 178                 log_err(_("AMD: failed to initialize ADL."));
 179                 return 0;
 180         }
 181         adl_main_control_done = 1;
 182
 183         if (ADL_OK != adl_adapter_numberofadapters_get(&inumberadapters)) {
 184                 log_err(_("AMD: cannot get the number of adapters."));
 185                 return 0;
 186         }
 187
 188         if (!inumberadapters)
 189                 return 0;
 190
 191         lpadapterinfo = malloc(sizeof(AdapterInfo) * inumberadapters);
 192         memset(lpadapterinfo, '\0', sizeof(AdapterInfo) * inumberadapters);
 193
 194         adl_adapter_adapterinfo_get(lpadapterinfo,
 195                                     sizeof(AdapterInfo) * inumberadapters);
 196
 197         for (i = 0; i < inumberadapters; i++) {
 198
 199                 iadapterindex = lpadapterinfo[i].iAdapterIndex;
 200
 201                 if (ADL_OK != adl_adapter_active_get(iadapterindex, &lpstatus))
 202                         continue;
 203                 if (lpstatus != ADL_TRUE)
 204                         continue;
 205
 206                 if (!active_adapters) {
 207                         active_adapters = (int *) malloc(sizeof(int));
 208                         inumberadaptersactive = 1;
 209                 } else {
 210                         ++inumberadaptersactive;
 211                         active_adapters = (int *)realloc
 212                                 (active_adapters,
 213                                  sizeof(int)*inumberadaptersactive);
 214
 215                         if (!active_adapters)
 216                                 exit(EXIT_FAILURE);
 217                 }
 218                 active_adapters[inumberadaptersactive-1] = iadapterindex;
 219         }
 220
 221         free(lpadapterinfo);
 222
 223         /* Each Adapter has one temperature sensor and one fan */
 224         return 2*inumberadaptersactive;
 225 }
 226
 227 void amd_psensor_list_update(struct psensor **sensors)
 228 {
 229         struct psensor **ss, *s;
 230
 231         ss = sensors;
 232         while (*ss) {
 233                 s = *ss;
 234
 235                 if (s->type == SENSOR_TYPE_AMD_TEMP)
 236                         psensor_set_current_value(s, get_temp(s));
 237                 else if (s->type == SENSOR_TYPE_AMD_FAN)
 238                         psensor_set_current_value(s, get_fanspeed(s));
 239
 240                 ss++;
 241         }
 242 }
 243
 244 struct psensor * *
 245 amd_psensor_list_add(struct psensor **sensors, int values_len)
 246 {
 247         int i, n;
 248         struct psensor **tmp, **ss, *s;
 249
 250         n = init();
 251
 252         ss = sensors;
 253         for (i = 0; i < n; i++) {
 254                 s = create_sensor(i, values_len);
 255
 256                 tmp = psensor_list_add(ss, s);
 257
 258                 if (ss != tmp)
 259                         free(ss);
 260
 261                 ss = tmp;
 262         }
 263
 264         return ss;
 265 }
 266
 267 void amd_cleanup()
 268 {
 269         if (hdll) {
 270                 if (adl_main_control_done)
 271                         adl_main_control_destroy();
 272                 dlclose(hdll);
 273         }
 274
 275         if (active_adapters) {
 276                 free(active_adapters);
 277                 active_adapters = NULL;
 278         }
 279 }