Nt32Pkg/WinNtBlockIoDxe/DriverConfiguration.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   DriverConfiguration.c
  15
  16 Abstract:
  17
  18 --*/
  19 #include <Uefi.h>
  20 #include <WinNtDxe.h>
  21 #include <Protocol/BlockIo.h>
  22 #include <Protocol/ComponentName.h>
  23 #include <Protocol/DriverBinding.h>
  24
  25 #include "WinNtBlockIo.h"
  26
  27 //
  28 // EFI Driver Configuration Functions
  29 //
  30 EFI_STATUS
  31 EFIAPI
  32 WinNtBlockIoDriverConfigurationSetOptions (
  33   IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
  34   IN  EFI_HANDLE                                             ControllerHandle,
  35   IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
  36   IN  CHAR8                                                  *Language,
  37   OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
  38   );
  39
  40 EFI_STATUS
  41 EFIAPI
  42 WinNtBlockIoDriverConfigurationOptionsValid (
  43   IN  EFI_DRIVER_CONFIGURATION_PROTOCOL               *This,
  44   IN  EFI_HANDLE                                      ControllerHandle,
  45   IN  EFI_HANDLE                                      ChildHandle  OPTIONAL
  46   );
  47
  48 EFI_STATUS
  49 EFIAPI
  50 WinNtBlockIoDriverConfigurationForceDefaults (
  51   IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
  52   IN  EFI_HANDLE                                             ControllerHandle,
  53   IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
  54   IN  UINT32                                                 DefaultType,
  55   OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
  56   );
  57
  58 //
  59 // EFI Driver Configuration Protocol
  60 //
  61 EFI_DRIVER_CONFIGURATION_PROTOCOL gWinNtBlockIoDriverConfiguration = {
  62   WinNtBlockIoDriverConfigurationSetOptions,
  63   WinNtBlockIoDriverConfigurationOptionsValid,
  64   WinNtBlockIoDriverConfigurationForceDefaults,
  65   LANGUAGESUPPORTED
  66 };
  67
  68 EFI_STATUS
  69 EFIAPI
  70 WinNtBlockIoDriverConfigurationSetOptions (
  71   IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
  72   IN  EFI_HANDLE                                             ControllerHandle,
  73   IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
  74   IN  CHAR8                                                  *Language,
  75   OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
  76   )
  77 /*++
  78
  79   Routine Description:
  80     Allows the user to set controller specific options for a controller that a
  81     driver is currently managing.
  82
  83   Arguments:
  84     This             - A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
  85     ControllerHandle - The handle of the controller to set options on.
  86     ChildHandle      - The handle of the child controller to set options on.  This
  87                        is an optional parameter that may be NULL.  It will be NULL
  88                        for device drivers, and for a bus drivers that wish to set
  89                        options for the bus controller.  It will not be NULL for a
  90                        bus driver that wishes to set options for one of its child
  91                        controllers.
  92     Language         - A pointer to a three character ISO 639-2 language identifier.
  93                        This is the language of the user interface that should be
  94                        presented to the user, and it must match one of the languages
  95                        specified in SupportedLanguages.  The number of languages
  96                        supported by a driver is up to the driver writer.
  97     ActionRequired   - A pointer to the action that the calling agent is required
  98                        to perform when this function returns.  See "Related
  99                        Definitions" for a list of the actions that the calling
 100                        agent is required to perform prior to accessing
 101                        ControllerHandle again.
 102
 103   Returns:
 104     EFI_SUCCESS           - The driver specified by This successfully set the
 105                             configuration options for the controller specified
 106                             by ControllerHandle..
 107     EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
 108     EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
 109     EFI_INVALID_PARAMETER - ActionRequired is NULL.
 110     EFI_UNSUPPORTED       - The driver specified by This does not support setting
 111                             configuration options for the controller specified by
 112                             ControllerHandle and ChildHandle.
 113     EFI_UNSUPPORTED       - The driver specified by This does not support the
 114                             language specified by Language.
 115     EFI_DEVICE_ERROR      - A device error occurred while attempt to set the
 116                             configuration options for the controller specified
 117                             by ControllerHandle and ChildHandle.
 118     EFI_OUT_RESOURCES     - There are not enough resources available to set the
 119                             configuration options for the controller specified
 120                             by ControllerHandle and ChildHandle.
 121
 122 --*/
 123 {
 124   EFI_STATUS            Status;
 125   EFI_BLOCK_IO_PROTOCOL *BlockIo;
 126   CHAR8                 *SupportedLanguage;
 127
 128   SupportedLanguage = This->SupportedLanguages;
 129
 130   Status            = EFI_UNSUPPORTED;
 131   while (*SupportedLanguage != 0) {
 132     if (AsciiStrnCmp (Language, SupportedLanguage, 3) == 0) {
 133       Status = EFI_SUCCESS;
 134     }
 135
 136     SupportedLanguage += 3;
 137   }
 138
 139   if (EFI_ERROR (Status)) {
 140     return Status;
 141   }
 142
 143   if (ActionRequired == NULL || ControllerHandle == NULL) {
 144     return EFI_INVALID_PARAMETER;
 145   }
 146
 147   if (ChildHandle != NULL) {
 148     return EFI_UNSUPPORTED;
 149   }
 150
 151   //
 152   // Validate controller handle
 153   //
 154   Status = gBS->OpenProtocol (
 155                   ControllerHandle,
 156                   &gEfiWinNtIoProtocolGuid,
 157                   &BlockIo,
 158                   gWinNtBlockIoDriverBinding.DriverBindingHandle,
 159                   ControllerHandle,
 160                   EFI_OPEN_PROTOCOL_BY_DRIVER
 161                   );
 162
 163   if (!EFI_ERROR (Status)) {
 164     gBS->CloseProtocol (
 165           ControllerHandle,
 166           &gEfiWinNtIoProtocolGuid,
 167           gWinNtBlockIoDriverBinding.DriverBindingHandle,
 168           ControllerHandle
 169           );
 170
 171     return EFI_UNSUPPORTED;
 172   }
 173
 174   if (Status == EFI_UNSUPPORTED) {
 175     return Status;
 176   } else if (Status != EFI_ALREADY_STARTED) {
 177     return EFI_INVALID_PARAMETER;
 178   }
 179
 180   *ActionRequired = EfiDriverConfigurationActionNone;
 181   return EFI_SUCCESS;
 182 }
 183
 184 EFI_STATUS
 185 EFIAPI
 186 WinNtBlockIoDriverConfigurationOptionsValid (
 187   IN  EFI_DRIVER_CONFIGURATION_PROTOCOL               *This,
 188   IN  EFI_HANDLE                                      ControllerHandle,
 189   IN  EFI_HANDLE                                      ChildHandle  OPTIONAL
 190   )
 191 /*++
 192
 193   Routine Description:
 194     Tests to see if a controller's current configuration options are valid.
 195
 196   Arguments:
 197     This             - A pointer to the EFI_DRIVER_CONFIGURATION_PROTOCOL instance.
 198     ControllerHandle - The handle of the controller to test if it's current
 199                        configuration options are valid.
 200     ChildHandle      - The handle of the child controller to test if it's current
 201                        configuration options are valid.  This is an optional
 202                        parameter that may be NULL.  It will be NULL for device
 203                        drivers.  It will also be NULL for a bus drivers that wish
 204                        to test the configuration options for the bus controller.
 205                        It will not be NULL for a bus driver that wishes to test
 206                        configuration options for one of its child controllers.
 207
 208   Returns:
 209     EFI_SUCCESS           - The controller specified by ControllerHandle and
 210                             ChildHandle that is being managed by the driver
 211                             specified by This has a valid set of  configuration
 212                             options.
 213     EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
 214     EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
 215     EFI_UNSUPPORTED       - The driver specified by This is not currently
 216                             managing the controller specified by ControllerHandle
 217                             and ChildHandle.
 218     EFI_DEVICE_ERROR      - The controller specified by ControllerHandle and
 219                             ChildHandle that is being managed by the driver
 220                             specified by This has an invalid set of configuration
 221                             options.
 222
 223 --*/
 224 {
 225   EFI_STATUS            Status;
 226   EFI_BLOCK_IO_PROTOCOL *BlockIo;
 227
 228   if (ChildHandle != NULL) {
 229     return EFI_UNSUPPORTED;
 230   }
 231
 232   if (ControllerHandle == NULL) {
 233     return EFI_INVALID_PARAMETER;
 234   }
 235
 236   //
 237   // Validate controller handle
 238   //
 239   Status = gBS->OpenProtocol (
 240                   ControllerHandle,
 241                   &gEfiWinNtIoProtocolGuid,
 242                   &BlockIo,
 243                   gWinNtBlockIoDriverBinding.DriverBindingHandle,
 244                   ControllerHandle,
 245                   EFI_OPEN_PROTOCOL_BY_DRIVER
 246                   );
 247
 248   if (!EFI_ERROR (Status)) {
 249     gBS->CloseProtocol (
 250           ControllerHandle,
 251           &gEfiWinNtIoProtocolGuid,
 252           gWinNtBlockIoDriverBinding.DriverBindingHandle,
 253           ControllerHandle
 254           );
 255
 256     return EFI_UNSUPPORTED;
 257   }
 258
 259   if (Status == EFI_UNSUPPORTED) {
 260     return Status;
 261   } else if (Status != EFI_ALREADY_STARTED) {
 262     return EFI_INVALID_PARAMETER;
 263   }
 264
 265   return EFI_SUCCESS;
 266 }
 267
 268 EFI_STATUS
 269 EFIAPI
 270 WinNtBlockIoDriverConfigurationForceDefaults (
 271   IN  EFI_DRIVER_CONFIGURATION_PROTOCOL                      *This,
 272   IN  EFI_HANDLE                                             ControllerHandle,
 273   IN  EFI_HANDLE                                             ChildHandle  OPTIONAL,
 274   IN  UINT32                                                 DefaultType,
 275   OUT EFI_DRIVER_CONFIGURATION_ACTION_REQUIRED               *ActionRequired
 276   )
 277 /*++
 278
 279   Routine Description:
 280     Forces a driver to set the default configuration options for a controller.
 281
 282   Arguments:
 283     This             - A pointer to the EFI_DRIVER_CONFIGURATION_ PROTOCOL instance.
 284     ControllerHandle - The handle of the controller to force default configuration options on.
 285     ChildHandle      - The handle of the child controller to force default configuration options on  This is an optional parameter that may be NULL.  It will be NULL for device drivers.  It will also be NULL for a bus drivers that wish to force default configuration options for the bus controller.  It will not be NULL for a bus driver that wishes to force default configuration options for one of its child controllers.
 286     DefaultType      - The type of default configuration options to force on the controller specified by ControllerHandle and ChildHandle.  See Table 9-1 for legal values.  A DefaultType of 0x00000000 must be supported by this protocol.
 287     ActionRequired   - A pointer to the action that the calling agent is required to perform when this function returns.  See "Related Definitions" in Section 9.1for a list of the actions that the calling agent is required to perform prior to accessing ControllerHandle again.
 288
 289   Returns:
 290     EFI_SUCCESS           - The driver specified by This successfully forced the default configuration options on the controller specified by ControllerHandle and ChildHandle.
 291     EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
 292     EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid EFI_HANDLE.
 293     EFI_INVALID_PARAMETER - ActionRequired is NULL.
 294     EFI_UNSUPPORTED       - The driver specified by This does not support forcing the default configuration options on the controller specified by ControllerHandle and ChildHandle.
 295     EFI_UNSUPPORTED       - The driver specified by This does not support the configuration type specified by DefaultType.
 296     EFI_DEVICE_ERROR      - A device error occurred while attempt to force the default configuration options on the controller specified by  ControllerHandle and ChildHandle.
 297     EFI_OUT_RESOURCES     - There are not enough resources available to force the default configuration options on the controller specified by ControllerHandle and ChildHandle.
 298
 299 --*/
 300 {
 301   EFI_STATUS            Status;
 302   EFI_BLOCK_IO_PROTOCOL *BlockIo;
 303
 304   if (ChildHandle != NULL) {
 305     return EFI_UNSUPPORTED;
 306   }
 307
 308   if (ActionRequired == NULL || ControllerHandle == NULL) {
 309     return EFI_INVALID_PARAMETER;
 310   }
 311
 312   //
 313   // Validate controller handle
 314   //
 315   Status = gBS->OpenProtocol (
 316                   ControllerHandle,
 317                   &gEfiWinNtIoProtocolGuid,
 318                   &BlockIo,
 319                   gWinNtBlockIoDriverBinding.DriverBindingHandle,
 320                   ControllerHandle,
 321                   EFI_OPEN_PROTOCOL_BY_DRIVER
 322                   );
 323
 324   if (!EFI_ERROR (Status)) {
 325     gBS->CloseProtocol (
 326           ControllerHandle,
 327           &gEfiWinNtIoProtocolGuid,
 328           gWinNtBlockIoDriverBinding.DriverBindingHandle,
 329           ControllerHandle
 330           );
 331
 332     return EFI_UNSUPPORTED;
 333   }
 334
 335   if (Status == EFI_UNSUPPORTED) {
 336     return Status;
 337   } else if (Status != EFI_ALREADY_STARTED) {
 338     return EFI_INVALID_PARAMETER;
 339   }
 340
 341   *ActionRequired = EfiDriverConfigurationActionNone;
 342   return EFI_SUCCESS;
 343 }