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
  22 #include "ntstatus.h"
  23 #define WIN32_NO_STATUS
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winnt.h"
  27 #include "winreg.h"
  28 #include "winternl.h"
  29 #include "powrprof.h"
  30 #include "wine/debug.h"
  31 #include "wine/unicode.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[] = { 'S', 'o', 'f', 't', 'w', 'a', 'r', 'e',
  49         '\\', 'M', 'i', 'c', 'r', 'o', 's', 'o', 'f', 't', '\\', 'W', 'i',
  50         'n', 'd', 'o', 'w', 's', '\\', 'C', 'u', 'r', 'r', 'e', 'n', 't',
  51         'V', 'e', 'r', 's', 'i', 'o', 'n', '\\', 'C', 'o', 'n', 't', 'r',
  52         'o', 'l', 's', ' ', 'F', 'o', 'l', 'd', 'e', 'r', '\\', 'P', 'o',
  53         'w', 'e', 'r', 'C', 'f', 'g', 0 };
  54 static const WCHAR szSemaphoreName[] = { 'P', 'o', 'w', 'e', 'r', 'P', 'r', 'o',
  55         'f', 'i', 'l', 'e', 'R', 'e', 'g', 'i', 's', 't', 'r', 'y', 'S',
  56         'e', 'm', 'a', 'p', 'h', 'o', 'r', 'e', 0 };
  57 static const WCHAR szDiskMax[] = { 'D', 'i', 's', 'k', 'S', 'p', 'i', 'n', 'd',
  58         'o', 'w', 'n', 'M', 'a', 'x', 0 };
  59 static const WCHAR szDiskMin[] = { 'D', 'i', 's', 'k', 'S', 'p', 'i', 'n', 'd',
  60         'o', 'w', 'n', 'M', 'i', 'n', 0 };
  61 static const WCHAR szLastID[] = { 'L', 'a', 's', 't', 'I', 'D', 0 };
  62 static HANDLE PPRegSemaphore = NULL;
  63
  64 NTSTATUS WINAPI CallNtPowerInformation(
  65         POWER_INFORMATION_LEVEL InformationLevel,
  66         PVOID lpInputBuffer, ULONG nInputBufferSize,
  67         PVOID lpOutputBuffer, ULONG nOutputBufferSize)
  68 {
  69    return NtPowerInformation(InformationLevel, lpInputBuffer,
  70       nInputBufferSize, lpOutputBuffer, nOutputBufferSize);
  71 }
  72
  73 BOOLEAN WINAPI CanUserWritePwrScheme(VOID)
  74 {
  75    HKEY hKey = NULL;
  76    LONG r;
  77    BOOLEAN bSuccess = TRUE;
  78
  79    TRACE("()\n");
  80
  81    r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ | KEY_WRITE, &hKey);
  82
  83    if (r != ERROR_SUCCESS) {
  84       TRACE("RegOpenKeyEx failed: %d\n", r);
  85       bSuccess = FALSE;
  86    }
  87
  88    SetLastError(r);
  89    RegCloseKey(hKey);
  90    return bSuccess;
  91 }
  92
  93 BOOLEAN WINAPI DeletePwrScheme(UINT uiIndex)
  94 {
  95    /* FIXME: See note #1 */
  96    FIXME("(%d) stub!\n", uiIndex);
  97    SetLastError(ERROR_FILE_NOT_FOUND);
  98    return FALSE;
  99 }
 100
 101 BOOLEAN WINAPI EnumPwrSchemes(PWRSCHEMESENUMPROC lpfnPwrSchemesEnumProc,
 102                         LPARAM lParam)
 103 {
 104    /* FIXME: See note #1 */
 105    FIXME("(%p, %ld) stub!\n", lpfnPwrSchemesEnumProc, lParam);
 106    SetLastError(ERROR_FILE_NOT_FOUND);
 107    return FALSE;
 108 }
 109
 110 BOOLEAN WINAPI GetActivePwrScheme(PUINT puiID)
 111 {
 112    /* FIXME: See note #1 */
 113    FIXME("(%p) stub!\n", puiID);
 114    SetLastError(ERROR_FILE_NOT_FOUND);
 115    return FALSE;
 116 }
 117
 118 BOOLEAN WINAPI GetCurrentPowerPolicies(
 119         PGLOBAL_POWER_POLICY pGlobalPowerPolicy,
 120         PPOWER_POLICY pPowerPolicy)
 121 {
 122    /* FIXME: See note #2 */
 123    SYSTEM_POWER_POLICY ACPower, DCPower;
 124
 125    FIXME("(%p, %p) stub!\n", pGlobalPowerPolicy, pPowerPolicy);
 126
 127    NtPowerInformation(SystemPowerPolicyAc, 0, 0, &ACPower, sizeof(SYSTEM_POWER_POLICY));
 128    NtPowerInformation(SystemPowerPolicyDc, 0, 0, &DCPower, sizeof(SYSTEM_POWER_POLICY));
 129
 130    return FALSE;
 131 }
 132
 133 BOOLEAN WINAPI GetPwrCapabilities(
 134         PSYSTEM_POWER_CAPABILITIES lpSystemPowerCapabilities)
 135 {
 136    NTSTATUS r;
 137
 138    TRACE("(%p)\n", lpSystemPowerCapabilities);
 139
 140    r = NtPowerInformation(SystemPowerCapabilities, 0, 0, lpSystemPowerCapabilities, sizeof(SYSTEM_POWER_CAPABILITIES));
 141
 142    SetLastError(RtlNtStatusToDosError(r));
 143
 144    return r == STATUS_SUCCESS;
 145 }
 146
 147 BOOLEAN WINAPI GetPwrDiskSpindownRange(PUINT RangeMax, PUINT RangeMin)
 148 {
 149    HKEY hKey;
 150    BYTE lpValue[40];
 151    LONG r;
 152    DWORD cbValue = sizeof(lpValue);
 153
 154    TRACE("(%p, %p)\n", RangeMax, RangeMin);
 155
 156    if (RangeMax == NULL || RangeMin == NULL) {
 157       SetLastError(ERROR_INVALID_PARAMETER);
 158       return FALSE;
 159    }
 160
 161    SetLastError(ERROR_SUCCESS);
 162
 163    WaitForSingleObject(PPRegSemaphore, INFINITE);
 164
 165    r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ, &hKey);
 166    if (r != ERROR_SUCCESS) {
 167       TRACE("RegOpenKeyEx failed: %d\n", r);
 168       TRACE("Using defaults: 3600, 3\n");
 169       *RangeMax = 3600;
 170       *RangeMin = 3;
 171       ReleaseSemaphore(PPRegSemaphore, 1, NULL);
 172       return TRUE;
 173    }
 174
 175    r = RegQueryValueExW(hKey, szDiskMax, 0, 0, lpValue, &cbValue);
 176    if (r != ERROR_SUCCESS) {
 177       TRACE("Couldn't open DiskSpinDownMax: %d\n", r);
 178       TRACE("Using default: 3600\n");
 179       *RangeMax = 3600;
 180    } else {
 181       *RangeMax = atoiW((LPCWSTR)lpValue);
 182    }
 183
 184    cbValue = sizeof(lpValue);
 185
 186    r = RegQueryValueExW(hKey, szDiskMin, 0, 0, lpValue, &cbValue);
 187    if (r != ERROR_SUCCESS) {
 188       TRACE("Couldn't open DiskSpinDownMin: %d\n", r);
 189       TRACE("Using default: 3\n");
 190       *RangeMin = 3;
 191    } else {
 192       *RangeMin = atoiW((LPCWSTR)lpValue);
 193    }
 194
 195    RegCloseKey(hKey);
 196
 197    ReleaseSemaphore(PPRegSemaphore, 1, NULL);
 198
 199    return TRUE;
 200 }
 201
 202 BOOLEAN WINAPI IsAdminOverrideActive(PADMINISTRATOR_POWER_POLICY p)
 203 {
 204    FIXME("( %p) stub!\n", p);
 205    return FALSE;
 206 }
 207
 208 BOOLEAN WINAPI IsPwrHibernateAllowed(VOID)
 209 {
 210    SYSTEM_POWER_CAPABILITIES PowerCaps;
 211    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 212    return PowerCaps.SystemS4 && PowerCaps.HiberFilePresent;
 213 }
 214
 215 BOOLEAN WINAPI IsPwrShutdownAllowed(VOID)
 216 {
 217    SYSTEM_POWER_CAPABILITIES PowerCaps;
 218    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 219    return PowerCaps.SystemS5;
 220 }
 221
 222 BOOLEAN WINAPI IsPwrSuspendAllowed(VOID)
 223 {
 224    SYSTEM_POWER_CAPABILITIES PowerCaps;
 225    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 226    return PowerCaps.SystemS1 && PowerCaps.SystemS2 && PowerCaps.SystemS3;
 227 }
 228
 229 BOOLEAN WINAPI ReadGlobalPwrPolicy(PGLOBAL_POWER_POLICY pGlobalPowerPolicy)
 230 {
 231    /* FIXME: See note #1 */
 232    FIXME("(%p) stub!\n", pGlobalPowerPolicy);
 233    SetLastError(ERROR_FILE_NOT_FOUND);
 234    return FALSE;
 235 }
 236
 237 BOOLEAN WINAPI ReadProcessorPwrScheme(UINT uiID,
 238                         PMACHINE_PROCESSOR_POWER_POLICY pMachineProcessorPowerPolicy)
 239 {
 240    /* FIXME: See note #1 */
 241    FIXME("(%d, %p) stub!\n", uiID, pMachineProcessorPowerPolicy);
 242    SetLastError(ERROR_FILE_NOT_FOUND);
 243    return FALSE;
 244 }
 245
 246 BOOLEAN WINAPI ReadPwrScheme(UINT uiID,
 247         PPOWER_POLICY pPowerPolicy)
 248 {
 249    /* FIXME: See note #1 */
 250    FIXME("(%d, %p) stub!\n", uiID, pPowerPolicy);
 251    SetLastError(ERROR_FILE_NOT_FOUND);
 252    return FALSE;
 253 }
 254
 255 BOOLEAN WINAPI SetActivePwrScheme(UINT uiID,
 256         PGLOBAL_POWER_POLICY lpGlobalPowerPolicy,
 257         PPOWER_POLICY lpPowerPolicy)
 258 {
 259    /* FIXME: See note #1 */
 260    FIXME("(%d, %p, %p) stub!\n", uiID, lpGlobalPowerPolicy, lpPowerPolicy);
 261    SetLastError(ERROR_FILE_NOT_FOUND);
 262    return FALSE;
 263 }
 264
 265 BOOLEAN WINAPI SetSuspendState(BOOLEAN Hibernate, BOOLEAN ForceCritical,
 266         BOOLEAN DisableWakeEvent)
 267 {
 268    /* FIXME: I have NO idea how you're supposed to call NtInitiatePowerAction
 269     * here, because it's not a documented function that I can find */
 270    FIXME("(%d, %d, %d) stub!\n", Hibernate, ForceCritical, DisableWakeEvent);
 271    return TRUE;
 272 }
 273
 274 BOOLEAN WINAPI WriteGlobalPwrPolicy(PGLOBAL_POWER_POLICY pGlobalPowerPolicy)
 275 {
 276    /* FIXME: See note #3 */
 277    FIXME("(%p) stub!\n", pGlobalPowerPolicy);
 278    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 279    return FALSE;
 280 }
 281
 282 BOOLEAN WINAPI WriteProcessorPwrScheme(UINT ID,
 283         PMACHINE_PROCESSOR_POWER_POLICY pMachineProcessorPowerPolicy)
 284 {
 285    /* FIXME: See note #3 */
 286    FIXME("(%d, %p) stub!\n", ID, pMachineProcessorPowerPolicy);
 287    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 288    return FALSE;
 289 }
 290
 291 BOOLEAN WINAPI WritePwrScheme(PUINT puiID, LPWSTR lpszName, LPWSTR lpszDescription,
 292         PPOWER_POLICY pPowerPolicy)
 293 {
 294    /* FIXME: See note #3 */
 295    FIXME("(%p, %s, %s, %p) stub!\n", puiID, debugstr_w(lpszName), debugstr_w(lpszDescription), pPowerPolicy);
 296    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 297    return FALSE;
 298 }
 299
 300 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 301 {
 302    switch(fdwReason) {
 303       case DLL_PROCESS_ATTACH: {
 304
 305          HKEY hKey;
 306          LONG r;
 307
 308          DisableThreadLibraryCalls(hinstDLL);
 309
 310          r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ | KEY_WRITE, &hKey);
 311
 312          if (r != ERROR_SUCCESS) {
 313             TRACE("Couldn't open registry key HKLM\\%s, using some sane(?) defaults\n", debugstr_w(szPowerCfgSubKey));
 314          } else {
 315             BYTE lpValue[40];
 316             DWORD cbValue = sizeof(lpValue);
 317             r = RegQueryValueExW(hKey, szLastID, 0, 0, lpValue, &cbValue);
 318             if (r != ERROR_SUCCESS) {
 319                TRACE("Couldn't open registry entry HKLM\\%s\\LastID, using some sane(?) defaults\n", debugstr_w(szPowerCfgSubKey));
 320             }
 321             RegCloseKey(hKey);
 322          }
 323
 324          PPRegSemaphore = CreateSemaphoreW(NULL, 1, 1, szSemaphoreName);
 325          if (PPRegSemaphore == NULL) {
 326             ERR("Couldn't create Semaphore: %d\n", GetLastError());
 327             return FALSE;
 328          }
 329          break;
 330       }
 331       case DLL_PROCESS_DETACH:
 332          CloseHandle(PPRegSemaphore);
 333          break;
 334     }
 335     return TRUE;
 336 }