dlls/powrprof/powrprof.c

   1 /*
   2  * Copyright (C) 2005 Benjamin Cutler
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19
  20 #include <stdarg.h>
  21 #include <stdlib.h>
  22
  23 #include "ntstatus.h"
  24 #define WIN32_NO_STATUS
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winnt.h"
  28 #include "winreg.h"
  29 #include "winternl.h"
  30 #include "powrprof.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(powrprof);
  34
  35 /* Notes to implementors:
  36  * #1: The native implementation of these functions attempted to read in
  37  * registry entries that I was unable to locate on any of the Windows
  38  * machines I checked, but I only had desktops available, so maybe
  39  * laptop users will have better luck. They return FNF errors because
  40  * that's what the native DLL was returning during my tests.
  41  * #2: These functions call NtPowerInformation but I don't know what they
  42  * do with the results, and NtPowerInformation doesn't do much in WINE yet
  43  * anyway.
  44  * #3: Since I can't get several other functions working (see note #1),
  45  * implementing these functions is going to have to wait until somebody can
  46  * cobble together some sane test input. */
  47
  48 static const WCHAR szPowerCfgSubKey[] = L"Software\\Microsoft\\Windows\\CurrentVersion\\Controls Folder\\PowerCfg";
  49 static HANDLE PPRegSemaphore = NULL;
  50
  51 NTSTATUS WINAPI CallNtPowerInformation(
  52         POWER_INFORMATION_LEVEL InformationLevel,
  53         PVOID lpInputBuffer, ULONG nInputBufferSize,
  54         PVOID lpOutputBuffer, ULONG nOutputBufferSize)
  55 {
  56    return NtPowerInformation(InformationLevel, lpInputBuffer,
  57       nInputBufferSize, lpOutputBuffer, nOutputBufferSize);
  58 }
  59
  60 BOOLEAN WINAPI CanUserWritePwrScheme(VOID)
  61 {
  62    HKEY hKey = NULL;
  63    LONG r;
  64    BOOLEAN bSuccess = TRUE;
  65
  66    TRACE("()\n");
  67
  68    r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ | KEY_WRITE, &hKey);
  69
  70    if (r != ERROR_SUCCESS) {
  71       TRACE("RegOpenKeyEx failed: %d\n", r);
  72       bSuccess = FALSE;
  73    }
  74
  75    SetLastError(r);
  76    RegCloseKey(hKey);
  77    return bSuccess;
  78 }
  79
  80 BOOLEAN WINAPI DeletePwrScheme(UINT uiIndex)
  81 {
  82    /* FIXME: See note #1 */
  83    FIXME("(%d) stub!\n", uiIndex);
  84    SetLastError(ERROR_FILE_NOT_FOUND);
  85    return FALSE;
  86 }
  87
  88 BOOLEAN WINAPI EnumPwrSchemes(PWRSCHEMESENUMPROC lpfnPwrSchemesEnumProc,
  89                         LPARAM lParam)
  90 {
  91    /* FIXME: See note #1 */
  92    FIXME("(%p, %ld) stub!\n", lpfnPwrSchemesEnumProc, lParam);
  93    SetLastError(ERROR_FILE_NOT_FOUND);
  94    return FALSE;
  95 }
  96
  97 BOOLEAN WINAPI GetActivePwrScheme(PUINT puiID)
  98 {
  99    /* FIXME: See note #1 */
 100    FIXME("(%p) stub!\n", puiID);
 101    SetLastError(ERROR_FILE_NOT_FOUND);
 102    return FALSE;
 103 }
 104
 105 BOOLEAN WINAPI GetCurrentPowerPolicies(
 106         PGLOBAL_POWER_POLICY pGlobalPowerPolicy,
 107         PPOWER_POLICY pPowerPolicy)
 108 {
 109    /* FIXME: See note #2 */
 110    SYSTEM_POWER_POLICY ACPower, DCPower;
 111
 112    FIXME("(%p, %p) stub!\n", pGlobalPowerPolicy, pPowerPolicy);
 113
 114    NtPowerInformation(SystemPowerPolicyAc, 0, 0, &ACPower, sizeof(SYSTEM_POWER_POLICY));
 115    NtPowerInformation(SystemPowerPolicyDc, 0, 0, &DCPower, sizeof(SYSTEM_POWER_POLICY));
 116
 117    return FALSE;
 118 }
 119
 120 BOOLEAN WINAPI GetPwrCapabilities(
 121         PSYSTEM_POWER_CAPABILITIES lpSystemPowerCapabilities)
 122 {
 123    NTSTATUS r;
 124
 125    TRACE("(%p)\n", lpSystemPowerCapabilities);
 126
 127    r = NtPowerInformation(SystemPowerCapabilities, 0, 0, lpSystemPowerCapabilities, sizeof(SYSTEM_POWER_CAPABILITIES));
 128
 129    SetLastError(RtlNtStatusToDosError(r));
 130
 131    return r == STATUS_SUCCESS;
 132 }
 133
 134 BOOLEAN WINAPI GetPwrDiskSpindownRange(PUINT RangeMax, PUINT RangeMin)
 135 {
 136    HKEY hKey;
 137    BYTE lpValue[40];
 138    LONG r;
 139    DWORD cbValue = sizeof(lpValue);
 140
 141    TRACE("(%p, %p)\n", RangeMax, RangeMin);
 142
 143    if (RangeMax == NULL || RangeMin == NULL) {
 144       SetLastError(ERROR_INVALID_PARAMETER);
 145       return FALSE;
 146    }
 147
 148    SetLastError(ERROR_SUCCESS);
 149
 150    WaitForSingleObject(PPRegSemaphore, INFINITE);
 151
 152    r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ, &hKey);
 153    if (r != ERROR_SUCCESS) {
 154       TRACE("RegOpenKeyEx failed: %d\n", r);
 155       TRACE("Using defaults: 3600, 3\n");
 156       *RangeMax = 3600;
 157       *RangeMin = 3;
 158       ReleaseSemaphore(PPRegSemaphore, 1, NULL);
 159       return TRUE;
 160    }
 161
 162    r = RegQueryValueExW(hKey, L"DiskSpindownMax", 0, 0, lpValue, &cbValue);
 163    if (r != ERROR_SUCCESS) {
 164       TRACE("Couldn't open DiskSpinDownMax: %d\n", r);
 165       TRACE("Using default: 3600\n");
 166       *RangeMax = 3600;
 167    } else {
 168       *RangeMax = wcstol((LPCWSTR)lpValue, NULL, 10);
 169    }
 170
 171    cbValue = sizeof(lpValue);
 172
 173    r = RegQueryValueExW(hKey, L"DiskSpindownMin", 0, 0, lpValue, &cbValue);
 174    if (r != ERROR_SUCCESS) {
 175       TRACE("Couldn't open DiskSpinDownMin: %d\n", r);
 176       TRACE("Using default: 3\n");
 177       *RangeMin = 3;
 178    } else {
 179       *RangeMin = wcstol((LPCWSTR)lpValue, NULL, 10);
 180    }
 181
 182    RegCloseKey(hKey);
 183
 184    ReleaseSemaphore(PPRegSemaphore, 1, NULL);
 185
 186    return TRUE;
 187 }
 188
 189 BOOLEAN WINAPI IsAdminOverrideActive(PADMINISTRATOR_POWER_POLICY p)
 190 {
 191    FIXME("( %p) stub!\n", p);
 192    return FALSE;
 193 }
 194
 195 BOOLEAN WINAPI IsPwrHibernateAllowed(VOID)
 196 {
 197    SYSTEM_POWER_CAPABILITIES PowerCaps;
 198    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 199    return PowerCaps.SystemS4 && PowerCaps.HiberFilePresent;
 200 }
 201
 202 BOOLEAN WINAPI IsPwrShutdownAllowed(VOID)
 203 {
 204    SYSTEM_POWER_CAPABILITIES PowerCaps;
 205    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 206    return PowerCaps.SystemS5;
 207 }
 208
 209 BOOLEAN WINAPI IsPwrSuspendAllowed(VOID)
 210 {
 211    SYSTEM_POWER_CAPABILITIES PowerCaps;
 212    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 213    return PowerCaps.SystemS1 && PowerCaps.SystemS2 && PowerCaps.SystemS3;
 214 }
 215
 216 BOOLEAN WINAPI ReadGlobalPwrPolicy(PGLOBAL_POWER_POLICY pGlobalPowerPolicy)
 217 {
 218    /* FIXME: See note #1 */
 219    FIXME("(%p) stub!\n", pGlobalPowerPolicy);
 220    SetLastError(ERROR_FILE_NOT_FOUND);
 221    return FALSE;
 222 }
 223
 224 BOOLEAN WINAPI ReadProcessorPwrScheme(UINT uiID,
 225                         PMACHINE_PROCESSOR_POWER_POLICY pMachineProcessorPowerPolicy)
 226 {
 227    /* FIXME: See note #1 */
 228    FIXME("(%d, %p) stub!\n", uiID, pMachineProcessorPowerPolicy);
 229    SetLastError(ERROR_FILE_NOT_FOUND);
 230    return FALSE;
 231 }
 232
 233 BOOLEAN WINAPI ReadPwrScheme(UINT uiID,
 234         PPOWER_POLICY pPowerPolicy)
 235 {
 236    /* FIXME: See note #1 */
 237    FIXME("(%d, %p) stub!\n", uiID, pPowerPolicy);
 238    SetLastError(ERROR_FILE_NOT_FOUND);
 239    return FALSE;
 240 }
 241
 242 BOOLEAN WINAPI SetActivePwrScheme(UINT uiID,
 243         PGLOBAL_POWER_POLICY lpGlobalPowerPolicy,
 244         PPOWER_POLICY lpPowerPolicy)
 245 {
 246    /* FIXME: See note #1 */
 247    FIXME("(%d, %p, %p) stub!\n", uiID, lpGlobalPowerPolicy, lpPowerPolicy);
 248    SetLastError(ERROR_FILE_NOT_FOUND);
 249    return FALSE;
 250 }
 251
 252 BOOLEAN WINAPI SetSuspendState(BOOLEAN Hibernate, BOOLEAN ForceCritical,
 253         BOOLEAN DisableWakeEvent)
 254 {
 255    /* FIXME: I have NO idea how you're supposed to call NtInitiatePowerAction
 256     * here, because it's not a documented function that I can find */
 257    FIXME("(%d, %d, %d) stub!\n", Hibernate, ForceCritical, DisableWakeEvent);
 258    return TRUE;
 259 }
 260
 261 BOOLEAN WINAPI WriteGlobalPwrPolicy(PGLOBAL_POWER_POLICY pGlobalPowerPolicy)
 262 {
 263    /* FIXME: See note #3 */
 264    FIXME("(%p) stub!\n", pGlobalPowerPolicy);
 265    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 266    return FALSE;
 267 }
 268
 269 BOOLEAN WINAPI WriteProcessorPwrScheme(UINT ID,
 270         PMACHINE_PROCESSOR_POWER_POLICY pMachineProcessorPowerPolicy)
 271 {
 272    /* FIXME: See note #3 */
 273    FIXME("(%d, %p) stub!\n", ID, pMachineProcessorPowerPolicy);
 274    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 275    return FALSE;
 276 }
 277
 278 BOOLEAN WINAPI WritePwrScheme(PUINT puiID, LPWSTR lpszName, LPWSTR lpszDescription,
 279         PPOWER_POLICY pPowerPolicy)
 280 {
 281    /* FIXME: See note #3 */
 282    FIXME("(%p, %s, %s, %p) stub!\n", puiID, debugstr_w(lpszName), debugstr_w(lpszDescription), pPowerPolicy);
 283    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 284    return FALSE;
 285 }
 286
 287 DWORD WINAPI PowerGetActiveScheme(HKEY UserRootPowerKey, GUID **polguid)
 288 {
 289    FIXME("(%p,%p) stub!\n", UserRootPowerKey, polguid);
 290    return ERROR_CALL_NOT_IMPLEMENTED;
 291 }
 292
 293 DWORD WINAPI PowerSetActiveScheme(HKEY UserRootPowerKey, GUID *polguid)
 294 {
 295    FIXME("(%p,%s) stub!\n", UserRootPowerKey, wine_dbgstr_guid(polguid));
 296    return ERROR_SUCCESS;
 297 }
 298
 299 DWORD WINAPI PowerReadDCValue(HKEY RootPowerKey, const GUID *Scheme, const GUID *SubGroup, const GUID *PowerSettings, PULONG Type, PUCHAR Buffer, DWORD *BufferSize)
 300 {
 301    FIXME("(%p,%s,%s,%s,%p,%p,%p) stub!\n", RootPowerKey, debugstr_guid(Scheme), debugstr_guid(SubGroup), debugstr_guid(PowerSettings), Type, Buffer, BufferSize);
 302    return ERROR_CALL_NOT_IMPLEMENTED;
 303 }
 304
 305 DWORD WINAPI PowerReadFriendlyName(HKEY RootPowerKey, const GUID *Scheme,
 306         const GUID *SubGroup, const GUID *PowerSettings, UCHAR *Buffer,
 307         DWORD *BufferSize)
 308 {
 309    FIXME("(%p,%s,%s,%s,%p,%p) stub!\n", RootPowerKey, debugstr_guid(Scheme), debugstr_guid(SubGroup), debugstr_guid(PowerSettings), Buffer, BufferSize);
 310    return ERROR_CALL_NOT_IMPLEMENTED;
 311 }
 312
 313 POWER_PLATFORM_ROLE WINAPI PowerDeterminePlatformRole(void)
 314 {
 315    FIXME("stub\n");
 316    return PlatformRoleDesktop;
 317 }
 318
 319 POWER_PLATFORM_ROLE WINAPI PowerDeterminePlatformRoleEx(ULONG version)
 320 {
 321     FIXME("%u stub.\n", version);
 322     return PlatformRoleDesktop;
 323 }
 324
 325 DWORD WINAPI PowerEnumerate(HKEY key, const GUID *scheme, const GUID *subgroup, POWER_DATA_ACCESSOR flags,
 326                         ULONG index, UCHAR *buffer, DWORD *buffer_size)
 327 {
 328    FIXME("(%p,%s,%s,%d,%d,%p,%p) stub!\n", key, debugstr_guid(scheme), debugstr_guid(subgroup),
 329                 flags, index, buffer, buffer_size);
 330    return ERROR_CALL_NOT_IMPLEMENTED;
 331 }
 332
 333 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 334 {
 335    switch(fdwReason) {
 336       case DLL_PROCESS_ATTACH: {
 337
 338          HKEY hKey;
 339          LONG r;
 340
 341          DisableThreadLibraryCalls(hinstDLL);
 342
 343          r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ | KEY_WRITE, &hKey);
 344
 345          if (r != ERROR_SUCCESS) {
 346             TRACE("Couldn't open registry key HKLM\\%s, using some sane(?) defaults\n", debugstr_w(szPowerCfgSubKey));
 347          } else {
 348             BYTE lpValue[40];
 349             DWORD cbValue = sizeof(lpValue);
 350             r = RegQueryValueExW(hKey, L"LastID", 0, 0, lpValue, &cbValue);
 351             if (r != ERROR_SUCCESS) {
 352                TRACE("Couldn't open registry entry HKLM\\%s\\LastID, using some sane(?) defaults\n", debugstr_w(szPowerCfgSubKey));
 353             }
 354             RegCloseKey(hKey);
 355          }
 356
 357          PPRegSemaphore = CreateSemaphoreW(NULL, 1, 1, L"PowerProfileRegistrySemaphore");
 358          if (PPRegSemaphore == NULL) {
 359             ERR("Couldn't create Semaphore: %d\n", GetLastError());
 360             return FALSE;
 361          }
 362          break;
 363       }
 364       case DLL_PROCESS_DETACH:
 365          if (lpvReserved) break;
 366          CloseHandle(PPRegSemaphore);
 367          break;
 368     }
 369     return TRUE;
 370 }