**/\r
\r
#include <Library/BaseLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/DevicePathLib.h>\r
#include <Library/HiiLib.h>\r
STATIC GOP_MODE *mGopModes;\r
\r
\r
+/**\r
+ Load the persistent platform configuration and translate it to binary form\r
+ state.\r
+\r
+ If the platform configuration is missing, then the function fills in a\r
+ default state.\r
+\r
+ @param[out] MainFormState Binary form/widget state after translation.\r
+\r
+ @retval EFI_SUCCESS Form/widget state ready.\r
+ @return Error codes from underlying functions.\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+PlatformConfigToFormState (\r
+ OUT MAIN_FORM_STATE *MainFormState\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ PLATFORM_CONFIG PlatformConfig;\r
+ UINT64 OptionalElements;\r
+ UINTN ModeNumber;\r
+\r
+ ZeroMem (MainFormState, sizeof *MainFormState);\r
+\r
+ Status = PlatformConfigLoad (&PlatformConfig, &OptionalElements);\r
+ switch (Status) {\r
+ case EFI_SUCCESS:\r
+ if (OptionalElements & PLATFORM_CONFIG_F_GRAPHICS_RESOLUTION) {\r
+ //\r
+ // Format the preferred resolution as text.\r
+ //\r
+ UnicodeSPrintAsciiFormat (\r
+ (CHAR16 *) MainFormState->CurrentPreferredResolution,\r
+ sizeof MainFormState->CurrentPreferredResolution,\r
+ "%Ldx%Ld",\r
+ (INT64) PlatformConfig.HorizontalResolution,\r
+ (INT64) PlatformConfig.VerticalResolution);\r
+\r
+ //\r
+ // Try to locate it in the drop-down list too. This may not succeed, but\r
+ // that's fine.\r
+ //\r
+ for (ModeNumber = 0; ModeNumber < mNumGopModes; ++ModeNumber) {\r
+ if (mGopModes[ModeNumber].X == PlatformConfig.HorizontalResolution &&\r
+ mGopModes[ModeNumber].Y == PlatformConfig.VerticalResolution) {\r
+ MainFormState->NextPreferredResolution = (UINT32) ModeNumber;\r
+ break;\r
+ }\r
+ }\r
+\r
+ break;\r
+ }\r
+ //\r
+ // fall through otherwise\r
+ //\r
+\r
+ case EFI_NOT_FOUND:\r
+ UnicodeSPrintAsciiFormat (\r
+ (CHAR16 *) MainFormState->CurrentPreferredResolution,\r
+ sizeof MainFormState->CurrentPreferredResolution,\r
+ "Unset");\r
+ break;\r
+\r
+ default:\r
+ return Status;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+\r
/**\r
This function is called by the HII machinery when it fetches the form state.\r
\r
all values filled in for the names in the Request\r
string.\r
\r
- @return Status codes from gHiiConfigRouting->BlockToConfig().\r
+ @retval EFI_SUCCESS Extraction of form state in <MultiConfigAltResp>\r
+ encoding successful.\r
+ @return Status codes from underlying functions.\r
\r
**/\r
STATIC\r
\r
DEBUG ((EFI_D_VERBOSE, "%a: Request=\"%s\"\n", __FUNCTION__, Request));\r
\r
- StrnCpy ((CHAR16 *) MainFormState.CurrentPreferredResolution,\r
- L"Unset", MAXSIZE_RES_CUR);\r
- MainFormState.NextPreferredResolution = 0;\r
+ Status = PlatformConfigToFormState (&MainFormState);\r
+ if (EFI_ERROR (Status)) {\r
+ *Progress = Request;\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Answer the textual request keying off the binary form state.\r
+ //\r
Status = gHiiConfigRouting->BlockToConfig (gHiiConfigRouting, Request,\r
(VOID *) &MainFormState, sizeof MainFormState,\r
Results, Progress);\r