diff options
Diffstat (limited to 'OvmfPkg/PlatformDxe/Platform.c')
| -rw-r--r-- | OvmfPkg/PlatformDxe/Platform.c | 215 |
1 files changed, 214 insertions, 1 deletions
diff --git a/OvmfPkg/PlatformDxe/Platform.c b/OvmfPkg/PlatformDxe/Platform.c index 16066a0f0e..4b141629c9 100644 --- a/OvmfPkg/PlatformDxe/Platform.c +++ b/OvmfPkg/PlatformDxe/Platform.c @@ -14,13 +14,18 @@ WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
+#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/HiiLib.h>
#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiHiiServicesLib.h>
#include <Protocol/DevicePath.h>
#include <Protocol/HiiConfigAccess.h>
+#include <Guid/MdeModuleHii.h>
+#include <Guid/OvmfPlatformConfig.h>
+#include "Platform.h"
#include "PlatformConfig.h"
//
@@ -94,6 +99,26 @@ extern UINT8 PlatformDxeStrings[]; extern UINT8 PlatformFormsBin[];
+/**
+ This function is called by the HII machinery when it fetches the form state.
+
+ See the precise documentation in the UEFI spec.
+
+ @param[in] This The Config Access Protocol instance.
+
+ @param[in] Request A <ConfigRequest> format UCS-2 string describing the
+ query.
+
+ @param[out] Progress A pointer into Request on output, identifying the query
+ element where processing failed.
+
+ @param[out] Results A <MultiConfigAltResp> format UCS-2 string that has
+ all values filled in for the names in the Request
+ string.
+
+ @return Status codes from gHiiConfigRouting->BlockToConfig().
+
+**/
STATIC
EFI_STATUS
EFIAPI
@@ -104,7 +129,24 @@ ExtractConfig ( OUT EFI_STRING *Results
)
{
- return EFI_SUCCESS;
+ MAIN_FORM_STATE MainFormState;
+ EFI_STATUS Status;
+
+ DEBUG ((EFI_D_VERBOSE, "%a: Request=\"%s\"\n", __FUNCTION__, Request));
+
+ StrnCpy ((CHAR16 *) MainFormState.CurrentPreferredResolution,
+ L"Unset", MAXSIZE_RES_CUR);
+ MainFormState.NextPreferredResolution = 0;
+ Status = gHiiConfigRouting->BlockToConfig (gHiiConfigRouting, Request,
+ (VOID *) &MainFormState, sizeof MainFormState,
+ Results, Progress);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "%a: BlockToConfig(): %r, Progress=\"%s\"\n",
+ __FUNCTION__, Status, (Status == EFI_DEVICE_ERROR) ? NULL : *Progress));
+ } else {
+ DEBUG ((EFI_D_VERBOSE, "%a: Results=\"%s\"\n", __FUNCTION__, *Results));
+ }
+ return Status;
}
@@ -138,6 +180,168 @@ Callback ( /**
+ Create a set of "one-of-many" (ie. "drop down list") option IFR opcodes,
+ based on available GOP resolutions, to be placed under a "one-of-many" (ie.
+ "drop down list") opcode.
+
+ @param[in] PackageList The package list with the formset and form for
+ which the drop down options are produced. Option
+ names are added as new strings to PackageList.
+
+ @param[out] OpCodeBuffer On output, a dynamically allocated opcode buffer
+ with drop down list options corresponding to GOP
+ resolutions. The caller is responsible for freeing
+ OpCodeBuffer with HiiFreeOpCodeHandle() after use.
+
+ @retval EFI_SUCESS Opcodes have been successfully produced.
+
+ @return Status codes from underlying functions. PackageList may
+ have been extended with new strings. OpCodeBuffer is
+ unchanged.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+CreateResolutionOptions (
+ IN EFI_HII_HANDLE *PackageList,
+ OUT VOID **OpCodeBuffer
+ )
+{
+ EFI_STATUS Status;
+ VOID *OutputBuffer;
+ EFI_STRING_ID NewString;
+ VOID *OpCode;
+
+ OutputBuffer = HiiAllocateOpCodeHandle ();
+ if (OutputBuffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ NewString = HiiSetString (PackageList, 0 /* new string */, L"800x600",
+ NULL /* for all languages */);
+ if (NewString == 0) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto FreeOutputBuffer;
+ }
+ OpCode = HiiCreateOneOfOptionOpCode (OutputBuffer, NewString,
+ 0 /* Flags */, EFI_IFR_NUMERIC_SIZE_4, 0 /* Value */);
+ if (OpCode == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto FreeOutputBuffer;
+ }
+
+ *OpCodeBuffer = OutputBuffer;
+ return EFI_SUCCESS;
+
+FreeOutputBuffer:
+ HiiFreeOpCodeHandle (OutputBuffer);
+
+ return Status;
+}
+
+
+/**
+ Populate the form identified by the (PackageList, FormSetGuid, FormId)
+ triplet.
+
+ @retval EFI_SUCESS Form successfully updated.
+ @return Status codes from underlying functions.
+
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+PopulateForm (
+ IN EFI_HII_HANDLE *PackageList,
+ IN EFI_GUID *FormSetGuid,
+ IN EFI_FORM_ID FormId
+ )
+{
+ EFI_STATUS Status;
+ VOID *OpCodeBuffer;
+ VOID *OpCode;
+ EFI_IFR_GUID_LABEL *Anchor;
+ VOID *OpCodeBuffer2;
+
+ //
+ // 1. Allocate an empty opcode buffer.
+ //
+ OpCodeBuffer = HiiAllocateOpCodeHandle ();
+ if (OpCodeBuffer == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // 2. Create a label opcode (which is a Tiano extension) inside the buffer.
+ // The label's number must match the "anchor" label in the form.
+ //
+ OpCode = HiiCreateGuidOpCode (OpCodeBuffer, &gEfiIfrTianoGuid,
+ NULL /* optional copy origin */, sizeof *Anchor);
+ if (OpCode == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto FreeOpCodeBuffer;
+ }
+ Anchor = OpCode;
+ Anchor->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
+ Anchor->Number = LABEL_RES_NEXT;
+
+ //
+ // 3. Create the opcodes inside the buffer that are to be inserted into the
+ // form.
+ //
+ // 3.1. Get a list of resolutions.
+ //
+ Status = CreateResolutionOptions (PackageList, &OpCodeBuffer2);
+ if (EFI_ERROR (Status)) {
+ goto FreeOpCodeBuffer;
+ }
+
+ //
+ // 3.2. Create a one-of-many question with the above options.
+ //
+ OpCode = HiiCreateOneOfOpCode (
+ OpCodeBuffer, // create opcode inside this
+ // opcode buffer,
+ QUESTION_RES_NEXT, // ID of question,
+ FORMSTATEID_MAIN_FORM, // identifies form state
+ // storage,
+ (UINT16) OFFSET_OF (MAIN_FORM_STATE, // value of question stored
+ NextPreferredResolution), // at this offset,
+ STRING_TOKEN (STR_RES_NEXT), // Prompt,
+ STRING_TOKEN (STR_RES_NEXT_HELP), // Help,
+ 0, // QuestionFlags,
+ EFI_IFR_NUMERIC_SIZE_4, // see sizeof
+ // NextPreferredResolution,
+ OpCodeBuffer2, // buffer with possible
+ // choices,
+ NULL // DEFAULT opcodes
+ );
+ if (OpCode == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto FreeOpCodeBuffer2;
+ }
+
+ //
+ // 4. Update the form with the opcode buffer.
+ //
+ Status = HiiUpdateForm (PackageList, FormSetGuid, FormId,
+ OpCodeBuffer, // buffer with head anchor, and new contents to be
+ // inserted at it
+ NULL // buffer with tail anchor, for deleting old
+ // contents up to it
+ );
+
+FreeOpCodeBuffer2:
+ HiiFreeOpCodeHandle (OpCodeBuffer2);
+
+FreeOpCodeBuffer:
+ HiiFreeOpCodeHandle (OpCodeBuffer);
+
+ return Status;
+}
+
+
+/**
Load and execute the platform configuration.
@retval EFI_SUCCESS Configuration loaded and executed.
@@ -227,8 +431,17 @@ PlatformInit ( goto UninstallProtocols;
}
+ Status = PopulateForm (mInstalledPackages, &gOvmfPlatformConfigGuid,
+ FORMID_MAIN_FORM);
+ if (EFI_ERROR (Status)) {
+ goto RemovePackages;
+ }
+
return EFI_SUCCESS;
+RemovePackages:
+ HiiRemovePackages (mInstalledPackages);
+
UninstallProtocols:
gBS->UninstallMultipleProtocolInterfaces (ImageHandle,
&gEfiDevicePathProtocolGuid, &mPkgDevicePath,
|