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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include <stdarg.h>
  21
  22 #include "windef.h"
  23 #include "winbase.h"
  24 #include "winnt.h"
  25 #include "winreg.h"
  26 #include "winternl.h"
  27 #include "ntstatus.h"
  28 #include "powrprof.h"
  29 #include "wine/debug.h"
  30 #include "wine/unicode.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(powrprof);
  33
  34 /* Notes to implementors:
  35  * #1: The native implementation of these functions attempted to read in
  36  * registry entries that I was unable to locate on any of the Windows
  37  * machines I checked, but I only had desktops available, so maybe
  38  * laptop users will have better luck. They return FNF errors because
  39  * that's what the native DLL was returning during my tests.
  40  * #2: These functions call NtPowerInformation but I don't know what they
  41  * do with the results, and NtPowerInformation doesn't do much in WINE yet
  42  * anyway.
  43  * #3: Since I can't get several other functions working (see note #1),
  44  * implementing these functions is going to have to wait until somebody can
  45  * cobble together some sane test input. */
  46
  47 static const WCHAR szPowerCfgSubKey[] = { 'S', 'o', 'f', 't', 'w', 'a', 'r', 'e',
  48         '\\', 'M', 'i', 'c', 'r', 'o', 's', 'o', 'f', 't', '\\', 'W', 'i',
  49         'n', 'd', 'o', 'w', 's', '\\', 'C', 'u', 'r', 'r', 'e', 'n', 't',
  50         'V', 'e', 'r', 's', 'i', 'o', 'n', '\\', 'C', 'o', 'n', 't', 'r',
  51         'o', 'l', 's', ' ', 'F', 'o', 'l', 'd', 'e', 'r', '\\', 'P', 'o',
  52         'w', 'e', 'r', 'C', 'f', 'g', 0 };
  53 static const WCHAR szSemaphoreName[] = { 'P', 'o', 'w', 'e', 'r', 'P', 'r', 'o',
  54         'f', 'i', 'l', 'e', 'R', 'e', 'g', 'i', 's', 't', 'r', 'y', 'S',
  55         'e', 'm', 'a', 'p', 'h', 'o', 'r', 'e', 0 };
  56 static const WCHAR szDiskMax[] = { 'D', 'i', 's', 'k', 'S', 'p', 'i', 'n', 'd',
  57         'o', 'w', 'n', 'M', 'a', 'x', 0 };
  58 static const WCHAR szDiskMin[] = { 'D', 'i', 's', 'k', 'S', 'p', 'i', 'n', 'd',
  59         'o', 'w', 'n', 'M', 'i', 'n', 0 };
  60 static const WCHAR szLastID[] = { 'L', 'a', 's', 't', 'I', 'D', 0 };
  61 static HANDLE PPRegSemaphore = NULL;
  62
  63 NTSTATUS WINAPI CallNtPowerInformation(
  64         POWER_INFORMATION_LEVEL InformationLevel,
  65         PVOID lpInputBuffer, ULONG nInputBufferSize,
  66         PVOID lpOutputBuffer, ULONG nOutputBufferSize)
  67 {
  68    return NtPowerInformation(InformationLevel, lpInputBuffer,
  69       nInputBufferSize, lpOutputBuffer, nOutputBufferSize);
  70 }
  71
  72 BOOLEAN WINAPI CanUserWritePwrScheme(VOID)
  73 {
  74    HKEY hKey = NULL;
  75    LONG r;
  76    BOOLEAN bSuccess = TRUE;
  77
  78    TRACE("()\n");
  79
  80    r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ | KEY_WRITE, &hKey);
  81
  82    if (r != ERROR_SUCCESS) {
  83       TRACE("RegOpenKeyEx failed: %ld\n", r);
  84       bSuccess = FALSE;
  85    }
  86
  87    SetLastError(r);
  88    RegCloseKey(hKey);
  89    return bSuccess;
  90 }
  91
  92 BOOLEAN WINAPI DeletePwrScheme(UINT uiIndex)
  93 {
  94    /* FIXME: See note #1 */
  95    FIXME("(%d) stub!\n", uiIndex);
  96    SetLastError(ERROR_FILE_NOT_FOUND);
  97    return FALSE;
  98 }
  99
 100 BOOLEAN WINAPI EnumPwrSchemes(PWRSCHEMESENUMPROC lpfnPwrSchemesEnumProc,
 101                         LPARAM lParam)
 102 {
 103    /* FIXME: See note #1 */
 104    FIXME("(%p, %ld) stub!\n", lpfnPwrSchemesEnumProc, lParam);
 105    SetLastError(ERROR_FILE_NOT_FOUND);
 106    return FALSE;
 107 }
 108
 109 BOOLEAN WINAPI GetActivePwrScheme(PUINT puiID)
 110 {
 111    /* FIXME: See note #1 */
 112    FIXME("(%p) stub!\n", puiID);
 113    SetLastError(ERROR_FILE_NOT_FOUND);
 114    return FALSE;
 115 }
 116
 117 BOOLEAN WINAPI GetCurrentPowerPolicies(
 118         PGLOBAL_POWER_POLICY pGlobalPowerPolicy,
 119         PPOWER_POLICY pPowerPolicy)
 120 {
 121    /* FIXME: See note #2 */
 122    SYSTEM_POWER_POLICY ACPower, DCPower;
 123
 124    FIXME("(%p, %p) stub!\n", pGlobalPowerPolicy, pPowerPolicy);
 125
 126    NtPowerInformation(SystemPowerPolicyAc, 0, 0, &ACPower, sizeof(SYSTEM_POWER_POLICY));
 127    NtPowerInformation(SystemPowerPolicyDc, 0, 0, &DCPower, sizeof(SYSTEM_POWER_POLICY));
 128
 129    return FALSE;
 130 }
 131
 132 BOOLEAN WINAPI GetPwrCapabilities(
 133         PSYSTEM_POWER_CAPABILITIES lpSystemPowerCapabilities)
 134 {
 135    NTSTATUS r;
 136
 137    TRACE("(%p)\n", lpSystemPowerCapabilities);
 138
 139    r = NtPowerInformation(SystemPowerCapabilities, 0, 0, lpSystemPowerCapabilities, sizeof(SYSTEM_POWER_CAPABILITIES));
 140
 141    SetLastError(RtlNtStatusToDosError(r));
 142
 143    return r == STATUS_SUCCESS;
 144 }
 145
 146 BOOLEAN WINAPI GetPwrDiskSpindownRange(PUINT RangeMax, PUINT RangeMin)
 147 {
 148    HKEY hKey;
 149    BYTE lpValue[40];
 150    LONG cbValue = 40, r;
 151
 152    TRACE("(%p, %p)\n", RangeMax, RangeMin);
 153
 154    if (RangeMax == NULL || RangeMin == NULL) {
 155       SetLastError(ERROR_INVALID_PARAMETER);
 156       return FALSE;
 157    }
 158
 159    SetLastError(ERROR_SUCCESS);
 160
 161    WaitForSingleObject(PPRegSemaphore, INFINITE);
 162
 163    r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, szPowerCfgSubKey, 0, KEY_READ, &hKey);
 164    if (r != ERROR_SUCCESS) {
 165       TRACE("RegOpenKeyEx failed: %ld\n", r);
 166       TRACE("Using defaults: 3600, 3\n");
 167       *RangeMax = 3600;
 168       *RangeMin = 3;
 169       ReleaseSemaphore(PPRegSemaphore, 1, NULL);
 170       return TRUE;
 171    }
 172
 173    r = RegQueryValueExW(hKey, szDiskMax, 0, 0, lpValue, &cbValue);
 174    if (r != ERROR_SUCCESS) {
 175       TRACE("Couldn't open DiskSpinDownMax: %ld\n", r);
 176       TRACE("Using default: 3600\n");
 177       *RangeMax = 3600;
 178    } else {
 179       *RangeMax = atoiW((LPCWSTR)lpValue);
 180    }
 181
 182    cbValue = 40;
 183
 184    r = RegQueryValueExW(hKey, szDiskMin, 0, 0, lpValue, &cbValue);
 185    if (r != ERROR_SUCCESS) {
 186       TRACE("Couldn't open DiskSpinDownMin: %ld\n", r);
 187       TRACE("Using default: 3\n");
 188       *RangeMin = 3;
 189    } else {
 190       *RangeMin = atoiW((LPCWSTR)lpValue);
 191    }
 192
 193    RegCloseKey(hKey);
 194
 195    ReleaseSemaphore(PPRegSemaphore, 1, NULL);
 196
 197    return TRUE;
 198 }
 199
 200 BOOLEAN WINAPI IsPwrHibernateAllowed(VOID)
 201 {
 202    /* FIXME: See note #2 */
 203    SYSTEM_POWER_CAPABILITIES PowerCaps;
 204    FIXME("() stub!\n");
 205    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 206    return FALSE;
 207 }
 208
 209 BOOLEAN WINAPI IsPwrShutdownAllowed(VOID)
 210 {
 211    /* FIXME: See note #2 */
 212    SYSTEM_POWER_CAPABILITIES PowerCaps;
 213    FIXME("() stub!\n");
 214    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 215    return FALSE;
 216 }
 217
 218 BOOLEAN WINAPI IsPwrSuspendAllowed(VOID)
 219 {
 220    /* FIXME: See note #2 */
 221    SYSTEM_POWER_CAPABILITIES PowerCaps;
 222    FIXME("() stub!\n");
 223    NtPowerInformation(SystemPowerCapabilities, NULL, 0, &PowerCaps, sizeof(PowerCaps));
 224    return FALSE;
 225 }
 226
 227 BOOLEAN WINAPI ReadGlobalPwrPolicy(PGLOBAL_POWER_POLICY pGlobalPowerPolicy)
 228 {
 229    /* FIXME: See note #1 */
 230    FIXME("(%p) stub!\n", pGlobalPowerPolicy);
 231    SetLastError(ERROR_FILE_NOT_FOUND);
 232    return FALSE;
 233 }
 234
 235 BOOLEAN WINAPI ReadProcessorPwrScheme(UINT uiID,
 236                         PMACHINE_PROCESSOR_POWER_POLICY pMachineProcessorPowerPolicy)
 237 {
 238    /* FIXME: See note #1 */
 239    FIXME("(%d, %p) stub!\n", uiID, pMachineProcessorPowerPolicy);
 240    SetLastError(ERROR_FILE_NOT_FOUND);
 241    return FALSE;
 242 }
 243
 244 BOOLEAN WINAPI ReadPwrScheme(UINT uiID,
 245         PPOWER_POLICY pPowerPolicy)
 246 {
 247    /* FIXME: See note #1 */
 248    FIXME("(%d, %p) stub!\n", uiID, pPowerPolicy);
 249    SetLastError(ERROR_FILE_NOT_FOUND);
 250    return FALSE;
 251 }
 252
 253 BOOLEAN WINAPI SetActivePwrScheme(UINT uiID,
 254         PGLOBAL_POWER_POLICY lpGlobalPowerPolicy,
 255         PPOWER_POLICY lpPowerPolicy)
 256 {
 257    /* FIXME: See note #1 */
 258    FIXME("(%d, %p, %p) stub!\n", uiID, lpGlobalPowerPolicy, lpPowerPolicy);
 259    SetLastError(ERROR_FILE_NOT_FOUND);
 260    return FALSE;
 261 }
 262
 263 BOOLEAN WINAPI SetSuspendState(BOOLEAN Hibernate, BOOLEAN ForceCritical,
 264         BOOLEAN DisableWakeEvent)
 265 {
 266    /* FIXME: I have NO idea how you're supposed to call NtInitiatePowerAction
 267     * here, because it's not a documented function that I can find */
 268    FIXME("(%d, %d, %d) stub!\n", Hibernate, ForceCritical, DisableWakeEvent);
 269    return TRUE;
 270 }
 271
 272 BOOLEAN WINAPI WriteGlobalPwrPolicy(PGLOBAL_POWER_POLICY pGlobalPowerPolicy)
 273 {
 274    /* FIXME: See note #3 */
 275    FIXME("(%p) stub!\n", pGlobalPowerPolicy);
 276    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 277    return FALSE;
 278 }
 279
 280 BOOLEAN WINAPI WriteProcessorPwrScheme(UINT ID,
 281         PMACHINE_PROCESSOR_POWER_POLICY pMachineProcessorPowerPolicy)
 282 {
 283    /* FIXME: See note #3 */
 284    FIXME("(%d, %p) stub!\n", ID, pMachineProcessorPowerPolicy);
 285    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 286    return FALSE;
 287 }
 288
 289 BOOLEAN WINAPI WritePwrScheme(PUINT puiID, LPWSTR lpszName, LPWSTR lpszDescription,
 290         PPOWER_POLICY pPowerPolicy)
 291 {
 292    /* FIXME: See note #3 */
 293    FIXME("(%p, %s, %s, %p) stub!\n", puiID, debugstr_w(lpszName), debugstr_w(lpszDescription), pPowerPolicy);
 294    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 295    return FALSE;
 296 }
 297
 298 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 299 {
 300    FIXME("(%p, %ld, %p) not fully implemented\n", hinstDLL, fdwReason, 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             LONG cbValue = 40;
 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: %ld\n", GetLastError());
 327             return FALSE;
 328          }
 329          break;
 330       }
 331       case DLL_PROCESS_DETACH:
 332          CloseHandle(PPRegSemaphore);
 333          break;
 334     }
 335     return TRUE;
 336 }