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_amd_adapters;
  60
  61 /* Memory allocation function */
  62 static void __stdcall *adl_main_memory_alloc(int isize)
  63 {
  64         void *lpbuffer = malloc(isize);
  65         return lpbuffer;
  66 }
  67
  68 static void *getprocaddress(void *plibrary, const char * name)
  69 {
  70         return dlsym(plibrary, name);
  71 }
  72
  73 /*
  74   Returns the temperature (Celcius) of an AMD/Ati GPU.
  75 */
  76 static double get_temp(struct psensor *sensor)
  77 {
  78         ADLTemperature temperature;
  79
  80         temperature.iSize = sizeof(ADLTemperature);
  81         temperature.iTemperature = -273;
  82         if (ADL_OK != adl_overdrive5_temperature_get(sensor->amd_id,
  83                  0, &temperature))
  84                 return UNKNOWN_DBL_VALUE;
  85
  86         return temperature.iTemperature/1000;
  87 }
  88
  89 static double get_fanspeed(struct psensor *sensor)
  90 {
  91         ADLFanSpeedValue fanspeedvalue;
  92
  93         fanspeedvalue.iSize = sizeof(ADLFanSpeedValue);
  94         fanspeedvalue.iSpeedType = ADL_DL_FANCTRL_SPEED_TYPE_RPM;
  95         fanspeedvalue.iFanSpeed = -1;
  96         if (ADL_OK != adl_overdrive5_fanspeed_get(sensor->amd_id,
  97                  0, &fanspeedvalue))
  98                 return UNKNOWN_DBL_VALUE;
  99
 100         return fanspeedvalue.iFanSpeed;
 101 }
 102
 103 static struct psensor *create_sensor(int id, int values_len)
 104 {
 105         char name[200];
 106         char *sid;
 107         int sensor_type;
 108
 109         struct psensor *s;
 110
 111         if (id & 1) {/* odd number ids represent fan sensors */
 112                 id = id >> 1;
 113                 sprintf(name, "GPU%dfan", id);
 114                 sensor_type = SENSOR_TYPE_AMD_FAN;
 115         } else {/* even number ids represent temperature sensors */
 116                 id = id >> 1;
 117                 sprintf(name, "GPU%dtemp", id);
 118                 sensor_type = SENSOR_TYPE_AMD_TEMP;
 119         }
 120
 121         sid = malloc(strlen("amd") + 1 + strlen(name) + 1);
 122         sprintf(sid, "amd %s", name);
 123
 124         s = psensor_create(sid, strdup(name),
 125                            sensor_type, values_len);
 126
 127         s->amd_id = active_amd_adapters[id];
 128
 129         return s;
 130 }
 131
 132 /*
 133   Returns the number of AMD/Ati GPU sensors (temperature and fan
 134   speed).
 135
 136   Return 0 if no AMD/Ati gpus or cannot get information.
 137 */
 138 static int init()
 139 {
 140         LPAdapterInfo lpadapterinfo = NULL;
 141         int i, inumberadapters, inumberadaptersactive = 0;
 142         int lpstatus, iadapterindex;
 143
 144         hdll = NULL;
 145         adl_main_control_done = 0;
 146         active_amd_adapters = NULL;
 147         hdll = dlopen("libatiadlxx.so", RTLD_LAZY|RTLD_GLOBAL);
 148
 149         if (!hdll) {
 150                 log_err(_("AMD: cannot found ADL library."));
 151                 return 0;
 152         }
 153
 154         adl_main_control_create = (ADL_MAIN_CONTROL_CREATE)
 155                  getprocaddress(hdll, "ADL_Main_Control_Create");
 156         adl_main_control_destroy = (ADL_MAIN_CONTROL_DESTROY)
 157                  getprocaddress(hdll, "ADL_Main_Control_Destroy");
 158         adl_adapter_numberofadapters_get = (ADL_ADAPTER_NUMBEROFADAPTERS_GET)
 159                  getprocaddress(hdll, "ADL_Adapter_NumberOfAdapters_Get");
 160         adl_adapter_adapterinfo_get = (ADL_ADAPTER_ADAPTERINFO_GET)
 161                  getprocaddress(hdll, "ADL_Adapter_AdapterInfo_Get");
 162         adl_adapter_active_get = (ADL_ADAPTER_ACTIVE_GET)
 163                  getprocaddress(hdll, "ADL_Adapter_Active_Get");
 164         adl_overdrive5_temperature_get = (ADL_OVERDRIVE5_TEMPERATURE_GET)
 165                  getprocaddress(hdll, "ADL_Overdrive5_Temperature_Get");
 166         adl_overdrive5_fanspeed_get = (ADL_OVERDRIVE5_FANSPEED_GET)
 167                  getprocaddress(hdll, "ADL_Overdrive5_FanSpeed_Get");
 168         if (!adl_main_control_create ||
 169                 !adl_main_control_destroy ||
 170                 !adl_adapter_numberofadapters_get ||
 171                 !adl_adapter_adapterinfo_get ||
 172                 !adl_overdrive5_temperature_get ||
 173                 !adl_overdrive5_fanspeed_get) {
 174                 log_err(_("AMD: missing ADL's API."));
 175                 return 0;
 176         }
 177
 178         /* Initialize ADL. The second parameter is 1, which means:
 179            retrieve adapter information only for adapters that
 180            are physically present and enabled in the system */
 181         if (ADL_OK != adl_main_control_create(adl_main_memory_alloc, 1)) {
 182                 log_err(_("AMD: failed to initialize ADL."));
 183                 return 0;
 184         }
 185         adl_main_control_done = 1;
 186
 187         /* Obtain the number of adapters for the system */
 188         if (ADL_OK != adl_adapter_numberofadapters_get(&inumberadapters)) {
 189                 log_err(_("AMD: cannot get the number of adapters."));
 190                 return 0;
 191         }
 192
 193         if (!inumberadapters)
 194                 return 0;
 195
 196         lpadapterinfo = malloc(sizeof(AdapterInfo) * inumberadapters);
 197         memset(lpadapterinfo, '\0', sizeof(AdapterInfo) * inumberadapters);
 198
 199         /* Get the AdapterInfo structure for all adapters in the system */
 200         adl_adapter_adapterinfo_get(lpadapterinfo,
 201                                     sizeof(AdapterInfo) * inumberadapters);
 202
 203         /* Repeat for all available adapters in the system */
 204         for (i = 0; i < inumberadapters; i++) {
 205
 206                 iadapterindex = lpadapterinfo[i].iAdapterIndex;
 207
 208                 if (ADL_OK != adl_adapter_active_get(iadapterindex, &lpstatus))
 209                         continue;
 210                 if (lpstatus != ADL_TRUE)
 211                         /* count only if the adapter is active */
 212                         continue;
 213
 214                 if (!active_amd_adapters) {
 215                         active_amd_adapters = (int *) malloc(sizeof(int));
 216                         inumberadaptersactive = 1;
 217                 } else {
 218                         ++inumberadaptersactive;
 219                         active_amd_adapters = (int *)realloc
 220                                 (active_amd_adapters,
 221                                  sizeof(int)*inumberadaptersactive);
 222                 }
 223                 active_amd_adapters[inumberadaptersactive-1] = iadapterindex;
 224         }
 225
 226         free(lpadapterinfo);
 227
 228         /* Each Adapter has one GPU temperature sensor and one fan
 229            control sensor */
 230         return 2*inumberadaptersactive;
 231 }
 232
 233 void amd_psensor_list_update(struct psensor **sensors)
 234 {
 235         struct psensor **ss, *s;
 236
 237         ss = sensors;
 238         while (*ss) {
 239                 s = *ss;
 240
 241                 if (s->type == SENSOR_TYPE_AMD_TEMP)
 242                         psensor_set_current_value(s, get_temp(s));
 243                 else if (s->type == SENSOR_TYPE_AMD_FAN)
 244                         psensor_set_current_value(s, get_fanspeed(s));
 245
 246                 ss++;
 247         }
 248 }
 249
 250 struct psensor * *
 251 amd_psensor_list_add(struct psensor **sensors, int values_len)
 252 {
 253         int i, n;
 254         struct psensor **tmp, **ss, *s;
 255
 256         n = init();
 257
 258         ss = sensors;
 259         for (i = 0; i < n; i++) {
 260                 s = create_sensor(i, values_len);
 261
 262                 tmp = psensor_list_add(ss, s);
 263
 264                 if (ss != tmp)
 265                         free(ss);
 266
 267                 ss = tmp;
 268         }
 269
 270         return ss;
 271 }
 272
 273 void amd_cleanup()
 274 {
 275         if (hdll) {
 276                 if (adl_main_control_done)
 277                         adl_main_control_destroy();
 278                 dlclose(hdll);
 279         }
 280
 281         if (active_amd_adapters) {
 282                 free(active_amd_adapters);
 283                 active_amd_adapters = NULL;
 284         }
 285 }